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احتمالية حدوث العيوب في عاج الجذر نتيجة لاستخدام انظمة مختلفة من مبارد النيكل تيتانيوم == The Incidence of dentinal root defects caused by different Nickel Titanium instruments

Author name: نور الدين علي سعيد
Supervisor name: ايمان محمد الزقة
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: يعد الاعداد الميكانيكي الاحيائي لقنوات الجذر احد الخطوات الرئيسية لتحقيق حشوة جذر ناجحة بسبب امكانية ازالة الاجسام البكتيرية والحطام المتراكم وتسهيل وضع حشوة الجذر داخل القنوات. الغرض من هذه الدراسة هو لملاحظة ومقارنة احتمالية حدوث العيوب في عاج الجذر نتي | Vertical root fracture and crack formation can be seen in root dentin during and after endodontic procedures. Vertical root fracture is one of the most frustrating complications of root canal treatment, which often results in tooth extraction. The aim of this in vitro study was to compare the effect of different Nickel Titanium instruments (ProTaper Universal, EndoSequence, ProTaper Next and RECIPROC) on the dentinal wall in term of dentinal defects.Seventy - five straight palatal roots of freshly extracted human maxillary first molars teeth were used in this study, the palatal roots were sectioned at 11 mm from the apex and wrapped with two layers of aluminum foil, then placed in the center of elastic silicon mold. Fifteen roots were left unprepared to serve as a negative control group, the remaining 60 roots were divided into 4 groups, each group contained 15 roots : • Group I was prepared by rotary ProTaper Universal system.• Group II was prepared by rotary EndoSequence system.• Group III was prepared by rotary ProTaper Next system.• Group IV was prepared by reciprocating RECIPROC system.All canals were prepared to MAF # 40. After each file size of the (rotary files) or after three pecking motion of the (reciprocating files), the file was removed from the canal and the canal was irrigated with 1 ml of 2% of sodium hypochlorite. All files were cleaned periodically to prevent clogging of flutes during instrumentation. The canal remained patent by insertion size 15 K - file.When the instrumentation was completed, the roots were then embedded in a clear acrylic resin blocks and each root was sectioned into three levels : apical, middle and coronal. All samples were examined from coronal direction under Stereomicroscope. The number and the type of dentinal defects were recorded and classified. The collected data was tabulated and subjected to statistical analysis using chi - square test.The EndoSequence group showed the lowest number of dentinal defects followed by ProTaper Next group and then ProTaper Universal group. The highest number of dentinal defects were observed in RECIPROC group. Chi - square test showed that there were highly significant differences among groups (P < 0.01). The results showed a non - significant difference between EndoSequence and Protaper Next group (p > 0.05), and a significant difference with ProTaper Universal group (P < 0.05) and a highly significant difference with RECIPROC group (P < 0.01). The ProTaper Next group showed a significant difference with ProTaper Universal group and a highly significant difference with RECIPROC groups. There was no significant difference between RECIPROC and ProTaper Universal groups.

انسلاخ المبيضات اللعابي المقاس بواسطة تفاعل البوليميراز المتسلسل الكمي اللحظي كاداة تنبؤ لحصول التهاب المبيضات الفموي عند مرضى الربو المتعاطين لدواء بيكلوميتازون المستنشق == Salivary Candidal Shed Measured By Real Time Quantitative Polymerase Chain Reaction As A Predictor of Oral Candidiasis In Asthmatic Patients On Inhaled Beclomethasone Dp Therapy

Author name: نغم قطران رحيم
Supervisor name: رعد محي الدين حلمي
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الربو القصبي المزمن يمثل مشكله صحيه جديه في كل العالم وهو عادة يبدا في عمر الطفوله ويبقى المريض في كثير من الاحيان يتعاطى العلاجات المستنشقه مدى الحياة.انتشار الربو القصبي يزداد في كثير من دول العالم مما يجعله احد الامراض المعيقه والمهدده للحياة باعتبا | Asthma is a serious global health problem that usually starts in childhood and continues along patient’s life and most of them have to take inhaled therapy lifelong. The prevalence of asthma is rising in many countries of the world, making asthma one of the most disabling and life threatening diseases effecting patients with different age groups and social classes with variable clinical spectrums and outcomes starting from mild to severe disabling syndrome rendering nonproductive individuals to severe life threatening and sometimes fatal disease. Those patients continue inhaled steroid therapy for long duration, considered by GINA as first line treatment , however such a treatment is associated with local adverse effects on oral tissues, and one of the main concerns is the development of oral candidiasis, a chronic, potentially invasive, infection of oral tissues with fungus candida species resulting in failure of treatment. The scientific interests about such a serious complication have been raised over the past years and debates continued as the candida is considered one of the normal flora of the oral cavity in most of healthy population, however oral candidiasis in pathogenic forms still occur in immunocompromised patients including asthmatics on inhaled corticosteroid therapy.Aim of the study1. To investigate the effect of inhaled corticosteroid therapy in form of Beclomethasone Dipropionate250 microgram/dose CFC free in asthmatic patients on salivary candidal shed estimating by Real Time quantitative Polymerase Chain Reaction (RT qPCR) applied on direct unstimulated saliva samples.2. Evaluation of this shed as prediction of occurrence of oral candidiasis. Patients, Materials and MethodsThis study was conducted at Al Zahraa consultational Asthma and Allergy center - Baghdad Al Karkh Health Directorate from September 2013 to February 2014.The included patients were divided into 3 groups. Group A included asthmatic patients on inhaled Beclomethasone therapy, group B included asthmatic patients that never used any form of inhaled steroid therapy and group C was those asthmatic patients on inhaled Beclomethasone therapy who developed oral candidiasis. All patients were receiving two daily doses. The same exclusion forma was applied to choose Group D who were control healthy individuals. Each included patients and control cases were instructed to give saliva samples in the standard way and samples taken for estimation of candidal count by real time quantitative Polymerase Chain Reaction.Results During the study period, 698 patients were examined, however only 63 patients were included in the study. Those 63 were classified as follows : 28 patients were found on group, 28 were found on group B and only 7 patients were found on group C and 20 cases were selected in group D as a control.Group C patients were having the highest salivary candidal shed (mean=58.7x106 cn/ml) and longest duration of asthma (Mean=2718 days) and longest duration of Beclomethasone therapy (Mean=2224 days) and this was significantly higher than other groups (p<0.05).Group A patients were having the second highest rank after group C in regard of salivary candidal shed and both duration of asthma and Beclomethasone therapy. Inside each group, duration of asthma and duration of Beclomethasone therapy were associated with moderate positive correlation with salivary candidal shed (R>0.5).Age difference between groups were insignificant and age factor had no correlation with salivary candidal shed inside the groups.Discussion : Salivary candidal shed over the groups was directly related to the duration of inhaled Beclomethasone therapy and duration of asthma. They are significantly higher (p<0.01) as we go further from each group to the next, both appear as the reason behind increased candidal shed in groups A and C.The salivary candidal shed curve will gave us a very useful tool for follow up those patients on inhaled steroid therapy ,In addition , predict the risk of developing oral candidiasis and when to interfere prior to the establishment of Oral Candidiasis state as that we have noticed in the group C, in which it was recommended to stop inhaled steroid therapy and the patients would lose the benefits of the therapy.Conclusions1. Resting saliva samples with realtime quantitative PCR was a rapid and accurate tool in diagnosis of oral candidiasis.2. Salivary Candidal Shed could be used as a tool in predicting oral candidiasis in asthmatic patients on inhaled Beclomethasone therapy.3.Longer duration of asthma and longer duration of Beclomethasone therapy were associated with increased salivary candidal shed and established oral candidiasis have the highest amount of shed.4. Candida albicans are present in the oral cavity of any individual of our population

تقيم التسريب الجزني لمركبات الراتنج للحشوات الخلفية سونك فل مركب مستند على السيلورين ومركب نانوفل مستند على الميتاكرليت في : دراسة مقارنة == Microleakage Evaluation of Sonicfill

Author name: مهند احمد الحداد
Supervisor name: حكمت عبد الرحيم الغراوي
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Resin composites have improved greatly since their introduction and are now the materials of choice for most of the restorations. This study was conducted with aim of comparing in vitro the marginal adaptation of three different, low shrink, direct posterior composites Sonic fill™ (nanohybrid composite), Filtek™ P90 (Silorane - based composite) and Filtek™ Z350 (nanofill composite) of a standardized Class V cavity after thermoal cycling. Sixty sound, freshly extracted human premolars were prepared with standardized Class V cavities. The specimens were divided into three groups of twenty teeth each according to the material used : Group A : The teeth were restored with Sonic fill™ posterior composite unidose capsules, Group B : The teeth were restored with a silorane - based posterior composite (FiltekTM P90), Group C : The teeth were restored with nanofill methacrylate - based composite (Filtek™ Z350 XT).After specimens were stored in distilled water at 37°C for 7 days, all specimens were subjected to thermocycling at (5° to 55 °C), then immersed in 2% methylene blue dye for 24 hours. For each group microleakage at the occlusal and gingival regions was estimated by determining dye penetration using scoring system under steromicroscope (10X). The statistical analysis of the results showed that, Filtek™ P90 silorane based composite exhibited the lowest mean of microleakage, with statistically highly significant difference (P < 0.01) when compared with Sonicfill™ composite and Filtek™ Z350 XT nanofill composite. On the other hand, the results of this study showed that Sonic fill™ composite exhibited no significant difference (P > 0.05) as compared with Filtek™ Z350 XT nanofill composite. Also, the results in this study showed that there is a highly significant difference (P < 0.01) in dye penetration between occlusal and gingival regions for each group

تقييم اصابة المفصل الفكي الصدغي عند مرضى الصدفية باستعمال التصوير المقطعي المحوسب للكشف عن التغيرات المفصلية == Evaluation of The Involvement of The Tempromandibular Joint In Patients With Psoriasis Using Computed Tomography For Detection of Psoriatic Arthritis Changes

Author name: منتهى فوزي صالح
Supervisor name: هاجر ابراهيم عبد الله
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اضطرابات المفصل الفكي الصدغي تشير الى مصطلح مركب يحتوي على عدة حالات تتضمن المفصل الصدغي,التركيبات المحيطة او كلاهما.اضطرابات المفصل الفكي الصدغي هي مجموعة اعراض معقدة اكثر من كونها حالة معينة واحدة, ويعتقد انها تنتج من عدة عوامل مثل : العوامل الجينية, ال | Tempromandibular disorders is a collective term, embracing several clinical problems involving the muscles of mastication, temporomandibular joint (TMJ), or both.Tempromandibular disorders is a symptom complex rather than a single condition, and it is thought to be caused by multiple factors like : genetic, developmental and metabolic.TMDs form a cluster of related disorders with common symptoms which include localized pain, limited or asymmetric movement, and clicks or grating on opening.Psoriatic arthritis is a chronic inflammatory arthropathy that affects patients with psoriasis. Psoriatic arthritis is most commonly a seronegative oligoarthritis found in patients with psoriasis and therefore occurs more commonly in patients with tissue type HLA - B27. The clinical findings for Tempromandibular Psoriatic arthritis are pain, tenderness, limitation of movement , joint stiffness, clicking as the jaw is opened or closed, difficulty in opening the mouth, locking of the jaw,and crepitations. These findings are essentially the same as for Tempromandibular disorders.• Objective of the study : • To determine the extent of tempromandibular joint involvement in patients with psoriatic arthritis.• To correlate between clinical findings and radiographic finding.Materials and method : In this study 98 patients were selected ,50 male and 48 female, their age ranged between(18 - 68)years. They were collected at Al - yarmook teaching hospital/department of dermatology during the period from ( NOV 2014 - May 2015).They were diagnosed as having psoriatic arthritis by a dermatologist according to (Moll and Wright diagnostic criteria 1973).These patients were sent to rheumatoid factor test RF to exclude the presence of rheumatoid arthritic disease, then the patients were exposed to CT scanning for the Tempromandibular joint in Al - Yarmook teaching hospital for screening the involvement of TMJ with psoriatic arthritis by the presence of any radiographic changes such as erosion, flattening,osteophyte and sclerosis in the condylar head.Results : The result of the study showed that the mean age of psoriatic arthritic patients in TMJ was (44.2) years, and the female percentage was (48.4%) and the male was (51.6%). Psoriatic arthritis in TMJ showed high significance in the unilateral side symptoms (100%) it was significant in patients with positive family history (54.8%), and non significant in the right/left ratio (41.9%). Oligo type was found in twenty six patients (83.9%) with significant p - value. Clinically, all symptoms including clicking, tenderness and tempromadibular joint pain were highly significant, limitation showed (54.8%), TMJ pain showed (64.5%) and tenderness showed (54.8%).Radiologically : CT scan showed sensitivity for erosion in TMJ (54.8%), for osteophyte (32.3%), for condylar flattening (16.1%) and for sclerosis (9.7%) while specificity for all were (100%). Association between clinical symptoms and radiological changes showed non significant correlation. Conclusions : Psoriatic arthritis of TMJ has been found oftenly unilateral (oligo type). Female/ male ratio is about 1 : 1. nearly 50% of patients were having limitation in mouth opening. Most of the patients were having positive family history.The development of psoriatic arthritis in TMJ is related to the duration of the disease. Plaque psoriasis is the most associated type with the psoriatic arthritis in TMJ. Most of patients with psoriatic arthritis show psoriatic nail changes. The most radiographic findings found in patients with psoritic arthritis was erosion in the condylar head. There is association between clinical and radiologic findings for psoriatic arthritis in TMJ.

ضبط الحواف ومقاومة الكسر لاغلفة ال Ceramill Sintron المعدنية المصممة والمصنعة بالحاسوب مكسوة بثلاث انواع مختلفة من الخزف == Marginal Discrepancy And Fracture Resistance of CAD\CAM Ceramill Sintron Metal Copings With Different Porcelain Materials

Author name: مصطفى نبيل عبد الغني
Supervisor name: عمار عطا الله علي السعدي
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: دقة الحواف والقوة، لاي ترميم معوض للاسنان هي صفة مهمة. ويمكن اعتبارعدم تطابق للحواف او قلة القوة سبب مهم يؤدي الى فشل التعويضات الاصطناعية للاسنان.لذلك تم اجراء هذا البحث لغرض تقييم اختلاف ظبط حافات ومقاومة الكسر لتيجان السيراميك المصنعة من اغلفة الC | Marginal fit and strength are important criteria for any restoration; poor marginal fit and low strength may be considered as a source of prosthesis failure. This study was performed to compare the marginal fit changes and facture resistance of metal ceramic crowns constructed from Ceramill Sintron metal coping veneered with three different porcelain veneering materials (Vita Master Koromikos VMK, Willi Geller Creation CC and GC initial MC). Also evaluating the influence of thermocycling on load at fracture value. The method included the use of master brass die which was milled to represent the prepared maxillary central incisor. Sixty metal copings were milled directly using Ceramill Sintron blank, then divided randomly into three groups. Each group consist of twenty metal copings, then veneered with porcelain : VITA for group A, Creation for group B and GC for group C. The marginal gap was measured before and after porcelain veneering for each group using travelling light microscope, then marginal fit changes was calculated. Fracture resistance test was done by Instron®, the master die was duplicated to sixty analogs then each analog was fixed into acrylic base. After that each crown was cemented onto the corresponding die analog using zinc phosphate cement. Ten samples of each group were subjected to compressive loading to fracture and other ten subjected to thermocycling followed by compressive loading to fracture.The result showed that GC group was highly significant different from other tested groups in marginal fit changes, whereas there was no significant different between VITA and Creation group. While there was significant difference among tested group at (P < 0.01) in fracture resistance, and the effect of thermocycling process did not significantly reduce the load at fracture for all groups.This study concluded that GC group present the least marginal fit changes, while the fracture resistance was highest for VITA group follow by Creation then GC. Thermocycling reduce load at fracture but not significantly.

A Comparative Study To Evaluate Canal Transportation And Centering Ratio At Different Levels of Simulated Curved Canals Prepared By Irace, Protaper NEXT And Protaper Universal Files == A Comparative Study To Evaluate Canal Transportation And Centering Ratio At Different Levels of Simulated Curved Canals Prepared By Irace, Protaper NEXT And Protaper Universal Files

Author name: محمد علي فاضل
Supervisor name: Hikmet A. Sh. Al | Gharrawi
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: تحضير قناة الجذر يشمل كلا من تشكيل وتوسيع المساحة اللبية بالاضافة الى تطهيرها من الجراثيم، من دون اي خطا اجرائي هو من اقصى درجات التفضيل. حديثا، في مجال تطبيقات حشوات الجذور، ادوات النيكل تيتانيوم اصبحت تستخدم بصورة شائعة لتنظيف وتشكيل قناة الجذر. ادوات ا | Root canal preparation includes both shaping and enlargement of the endodontic space in conjunction with its disinfection, without any procedural error is of the utmost preference. Recently, in endodontic practice, the nickel - titanium instruments are used commonly for the preparation of the root canal space. Nickel - titanium instruments are much more flexible than stainless steel files and have superior cutting efficiency. Super - elasticity of nickel - titanium rotary instruments allows the clinicians to produce the desirable tapered root canal form with a reduced tendency to canal transportation and instrument fracture. The target of this study was to measure and compare the canal transportation and centering ability of iRaCe and ProTaper NEXT nickel titanium instruments with ProTaper Universal instruments in simulated curved canals at different levels and compare canal transportation and centering ability among different levels for each tested instrument.Sixty simulated curved canals of 40°curvature were randomly divided into three groups of twenty canals each; the first group (group A) was prepared with iRaCe instruments, the second group (group B) was prepared with ProTaper NEXT instruments and the third group (group C) was prepared with ProTaper Universal instruments. The canals were prepared to an apical size 30 by crown - down instrumentation technique. Removal of material was measured at five different levels : at the canal orifice (O), half way to the orifice in the straight sections (HO); the beginning of the curve (BC); the crest of the curve (AC); the end point (EP). Pre - and post - operative photos of the simulated canals were taken in a standardized technique at magnification of 40X. An assessment of canals shape has been determined using Photoshop CC 2014 and AutoCAD 2014 software program. The data of canal transportation as well as centering ratio were analyzed statistically using Shapiro - Wilk, ANOVA and LSD tests.Within the limitation of this study, it is shown that canals preparation with the three designs of NiTi instruments produced canal transportation. However, the iRaCe instruments showed a significantly less canal transportation and a significantly better centering ability than both ProTaper NEXT and ProTaper Universal instruments at all levels of measurements, followed by ProTaper NEXT instruments that showed a significantly less canal transportation and significantly better centering ability at all levels when compared with ProTaper Universal, while the ProTaper Universal instruments showed the highest values of canal transportation and the worst ability to stay centered in the canals at all levels. Considering the direction of canal transportation, the iRaCe instruments showed minimal transportation towards inner aspect of canal at coronal and at the apex of curve and towards outer aspect of canal at middle, beginning of curve and at the end point of the preparation, while ProTaper NEXT instruments were showed transportation usually towards the inner aspect of the canal at middle part of the canal and towards the outer aspect at coronal, beginning of curve, apex of curve and at the endpoint of the preparation, while ProTaper Universal files were usually towards the inner aspect at middle part of the canal and towards the outer aspect at coronal, beginning of curve, apex of curve and at the endpoint of the preparation.

الانتشار والعلاقة بين اضطرابات المفصل الصدغي بين طلاب طب الاسنان على اساس معايير التشخيص والاجهاد والاضطرابات الفموية == Prevalence And Correlations Between Temporomandibular Disorders In Dental Students Based On Diagnostic Criteria (DC/TMD) , Parafunctions And Psychoemotional Stress

Author name: علا علي خلف
Supervisor name: هاجر ابراهيم عبد الله
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اضطرابات المفصل الصدغي والاضطرابات الفموية يبدو انها مشكلة متكررة في المجتمعات الحديثة. ويرتبط الباثولوجيا السببية المفصل الصدغي الى العضلات، واقواس الاسنان، ودواعم الاسنان. وتشمل الاسباب الرئيسية على حد سواء العوامل الفيزيولوجية المرضية والنفسية وا | Bagkground : The temporomandibular disorders (TMD) and oral parafunctions seem to be a frequent problem in modern societies. The etiopathology of the temporomandibular joints is related to muscles, teeth arches, and periodontium. Their main causes involve both pathophysiological and psychosocial factors. In the literature, a significant impact of the psychoemotional factor is reported, comparable to the impact of other factors concerning physical health such as systemic diseases, malocclusions, loss of teeth, and traumas. Stress, fatigue, anxiety, depression, sleep disorders, and a fast pace of life affect negatively the human psyche.Aim of study : The aim of the study was to assess the prevalence of temporomandibular disorders (TMD) and oral parafunctions, as well as their correlation with psychoemotional factors among dental students by using diagnostic criteria (DC/TMD).Subjects, materials and methods : the sample’s size of 407 students (169 males and 238 females) of dental college (100 fifth stage , 102 fourth stage ,99 third stage and 106 second stage ). Firstly students subjected for stress questionnaire (perceived stress scale - 10) , secondly they subjected to different clinical and questionnaire measures according to diagnostic criteria of temporomandibular disorders DC/TMD (axis1) which have standerized series of diagnostic tests based on clinical signs and symptoms , finally the dental students subjected for oral parafunctions questionnaire using oral behavior checklist.Results : the results obtained from this study showed that the prevalence of TMDs was significantly greater among students with oral parafunctions. We also observed that the prevalence of TMDs according to DC/TMD was higher among students with headache.In this study, the prevalence of psycho - emotional stress , TMD according to DC/TMD and oral parafunctions were higher in females than males and in fifth stage greater than other stages.Conclusion : • the prevalence of TMDs according to DC/TMD were significantly higher among females than males.• Oral parafunctions ( bruxism , cheek/lips biting , objects biting and nail biting ) showed greater prevalence in fifth stages than others and higher in females than males • In all stages females showed greater prevalence of psycho - emotional stress than males and among students of fifth stage the prevalence of psycho - emotional stress was higher than other stages.

قوة الدفع الرابطة الى الخارج والتسرب القمي للمواد (MTA Plus, Biodentine and Bioceramic) بتقنية حشوة ثلث القمي للجذر : دراسة مختبرية == Push - Out Bond Strength And Apical Microleakage of (Mta Plus, Biodentine, And Bioceramic)As Apical Third Filling (An In Vitro Study)

Author name: عبير علي عباس
Supervisor name: جمال عزيز مهدي
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت هده الدراسة المختبرية لتقيم قدرة ختم لثلاث مواد استعملت ( بتقنة حشوة ثلث القمي لقناة الجذر ) باستعمال اختبار قوة الربط الدفع الى الخارج ودراسة التسرب القمي.ستين جذر حلقي الاسنان العلوية ذو قناة مستقيمة ذات فتحة قمية مكتملة التكوين مختارة بعناية وفق | This study was conducted to evaluate the sealing ability of three materials used as apical third filling by using push - out bond strength test and apical microleakage study.Sixty straight palatal roots of freshly extracted maxillary first molars were selected. All teeth had mature apices, selected carefully according to specific criteria. The roots were instrumented using crown down technique with rotary Protaper universal system, instrumentation were done with 5ml of 2.5% sodium hypochlorite used as irrigation between files, 17% buffered solution of EDTA was used as final irrigant followed by 2.5% sodium hypochlorite then 10ml distilled water to remove any remnant of irrigant. Roots were randomly divided into three groups according to the filling materials used ( twenty roots for each group) : Group (1) : MTA Plus ( 4mm thickness) using as apical third filling. Group (2) : Biodentine (4mm thickness) using as apical third filling.Group (3) : Bioceramic root repair material (4mm thickness) using as apical third filling.Easy and Quick (E&Q) obturation system were used to complete obturation of roots. After incubation period at 37 °C for three days. Ten roots from each group were used for push - out test, after root were embedded in clear acrylic resin, sectioned at apical level in 2mm and 4mm from root apex to provide slice 2mm in thickness. The bond strength was measured using computerized universal testing machine, each section fixed in the machine so that the load applied from apical to coronal direction at 0.5mm/min speed and the computer drew curve to show the higher bond force before dislodgment of the filling material. These force were divided by surface area to obtain the bond strength in MPa.After debonding each sample was examined under Stereomicroscope and the type of failure mode was recorded. The result showed non significant different between Biodentine group and MTA Plus group. Biodentine group showed a very high significant difference with Bioceramic material group. Also high significant difference between MTA Plus group and Bioceramic material group. The Biodentine group showed highest mean of bond strength in comparison to other test group.Ten roots remain from each group used for apical microleakage study. The roots submerged in 2% methylene blue for three days. The roots were cleared and the degree of linear dye penetration was measured in millimeter by stereomicroscope under 40 X magnification with calibrated scale ocular grid. The result showed the Biodentine group lowest mean of microleakage than other group while Bioceramic material group showed high mean of microleakage than other groups. There are no significant difference among groups. There is positive correlation between push - out bond strength and an apical dye penetration in microleakage for each group of material.

فشل القشور الخزفية المصنوعه من السيراميك باستخدام تقنيات اللصق المختلفة : دراسة مقارنة مختبرية == Failures of Porcelain Laminate Veneers Using Different Techniques of Bonding (A Comparative In Vitro Study)

Author name: صفا عدنان كعيد
Supervisor name: عمار عطا الله علي السعدي
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Esthetic dentistry as a concept and adhesive materials development as a functional element make the new dawn of dentistry especially with the continuous development of adhesive techniques. This study is to evaluate the failure patterns of porcelain laminate veneers used to esthetically restore maxillary first premolar by bonding them to enamel and dentin with two different techniques.Forty eight extracted human maxillary first premolar were used for this study. Teeth were divided randomly into one control group and three experimental groups of twelve teeth eachGroup (A) were prepared in enamel (0.5 mm) depth of preparation. Group (B) were prepared in dentin (1 mm) depth of preparation and their veneers were bonded by DDS technique. Group (C) were prepared in dentin (1 mm) depth of preparation and their veneers were bonded by IDS technique. Standard preparation for each tooth in the experimental groups with ceramic veneer set burs especially designed for laminate veneer preparation. All the experimental groups were restored with the same type of veneer which was lithium disilicate ceramic CAD/CAM blocks (IPS e. max CAD, ivoclar vivadent) and were milled by CAD/CAM technology (CEREC inLab 4.02 milling system, Sirona).For all the experimental groups, Choice™2 veneer cement (Bisco, USA) was used for the luting of veneers. After cementation, teeth were stored in distilled water in 37°C for one week. The specimens were loaded to failure using instron universal testing machine. Specimens in experimental groups were examined by stereomicroscope at magnification of 20x to evaluate the mode of failure.Results were statistically analyzed and showed that the highest mean of failure load was recorded for the control group (548.1 N ± 93.2), for group (A) the mean of failure load was (393.4 N ± 84.2), and for Group (B) had the mean of failureAbstract IIIload was (237.8 N ± 91.6), and for group (C) the mean of failure load was (318 N ± 82.2).The one way ANOVA test was carried out and showed that there is a statistically high significant difference among the groups.Then the LSD test have shown that there is a statistically high significant difference between the control group and all three of the experimental groups, and there was a statistical high significant difference between group (A) and group (B), while group (C) have shown that there is a statistical significant difference with groups (A) and (B).The mode of failure varied from only debonding in groups (B and C) to deboning and fracture in group A.In conclusion, this study found that although enamel is still the most favorable tooth substrate for indirect adhesive restorations, the development of bonding techniques like IDS made dentin as acceptable tooth substrate for indirect adhesive restorations when it's unavoidable.

تقييم صحة الفم والبروتينات اللعابية لدى المرضى المصابين بمرض باركنسن == Assessment of The Oral Health And Saliva Proteins In Patients With Parkinsons Disease

Author name: صباح فرحان مشتت
Supervisor name: هاجر ابراهيم عبد الله | مروان صالح النمر
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Background : Parkinson's disease (PD) is a progressive neurodegenerative disorder related to the loss or absence of dopaminergic neurons in the brain. The deficits caused by PD result in slowness of movement, tremor, rigidity, and dysfunction of behavior and these symptoms negatively influence the patient’s capability to carry out the daily oral hygiene manoeuvres.Aims of study : This study aims at using saliva as a biological fluid for assessment in detecting the biomarkers of Parkinson's disease and to assess the impact of this disease on the oral health of patients.Materials and methods : A total number of fourty participants were involved in the study; twenty subjects who appeared healthy (Group I) and twenty Parkinson's patients (Group II). Patients who are eligible for this study were cases of Parkinson's disease treated with anti - Parkinson's medications, both genders and their ages ranged from 40 - 75 years. Specific information related to the demographic characteristics and illness is obtained from each patient. The Brain Bank Diagnostic Criteria for Parkinson’s disease established by United Kingdom Parkinson's Disease Society was used. Each patient was subjected to oral examination during which DMF index was scored, oral health impact Profile OHIP - 14 was used and from each participant the whole unstimulated saliva was collected for biochemical analysis including total salivary protein, direct determination of saliva proteins and determination of ? - synuclein. Results : many oral and clinical signs and symptoms elsewhere in the body were reported in the patient with Parkinson's disease while the clinical features of Parkinson's disease observed in all patients despite of their treatment. Static tremor observed in 100%, rigidity in 70%, disturbances in the autonomic nervous system reflected on the cardiovascular, gastrointestinal and urinary tracts, orthostatic dizziness observed in 75%, dry mouth in 65% difficulties in swallowing in 40% and constipation in 70%. Teeth examination revealed that Parkinson's patients have a non - significant high means of decay and missing teeth compared with healthy subjects. The total saliva protein in Parkinson's patients is significantly higher than the corresponding value of healthy subjects. The extinction coefficient of uncontaminated protein in Parkinson's patients is significantly less than the corresponding values of healthy subjects and salivary ? - synuclein level is significantly less in Parkinson's patients than healthy subjects.Conclusions : Salivary ? - synuclein may serves as a biomarker for Parkinson's disease. Specific protein with extinction coefficient 27.5 M.Cm - 1 is secreted in saliva of Parkinson's patients. The characteristic saliva protein produced in patients with Parkinson's disease is deficient in tyrosine level and Dental care is required for both groups (Parkinson's patients and healthy subjects).

الاستريتين الفموي مقابل غلوكونات الزنك عن طريق الفم : دراسة علاجية مقارنة وعبورية في علاج مرض بهجت == Oral Acitretin Versus Oral Zinc Gluconate As A Comparative Cross - Over Therapeutic Study In Treatment of Behcet,S Disease

Author name: سناء عبد الحميد حسين
Supervisor name: هاجر ابراهيم عبد الله | عادل عبد الغفور النعيمي
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اساس البحث : مرض بهجت هو اضطراب جهازي حيث ان اسبابه المرضيه ليست محدده جيده.المظاهر الاكثر شيوعا هي الاغشيه المخاطيه الجلديه ولكن يمكن ان يشمل العين, انظمة القلب,الاوعيه الدمويه والجهاز العصبي. هناك العديد من طرائق المعالجه الموضعيه والجهازيه. تمت محاول | Background : Behcet’s disease is a systemic disorder where its etiopathogenesis is not well determined. The commonest manifestations are muccocutaneous but can involve eye, cardiovascular and neurological systems. There are many modalities of therapy topical and systemic.Isotretinion has been tried as an effective therapy of muccocutaneous manifestations. In present work was to try a new retinoid like acitretin which has longer half life than isotretinoin.Aims of the study : To evaluate the effectiveness of oral acitretin versus oral zinc gluconate in the treatment and prophylaxis of Behcet’s disease as a new therapeutic model.Materials and methods : This cross over controlled therapeutic study that conducted in the Department of Dermatology - Baghdad Teaching Hospital the period from August 2013 - May 2014.Twenty patients with fulfilled criteria of Behcets’s disease was included in this work. History and full examination were done for all patients regarding all demo - garaphic points related to the disease. They were given acitretin 25 mg orally once daily for three months to be seen on the day fourteenth firstly and then monthly to be assessed depending on the clinical manifestation index for Behcets disease. After three months, acitretin was stopped and patients were given zinc gluconate 25 mg twice daily for another three months. Results : Twenty patients were treated 12 males (60%), and 8 females (40%), with male to female ratio 1.5 : 1. All these patients completed the study and their ages ranged between 20 - 59 years with mean± SD (37.3±12.3). Pathergy both ordinary and oral were also minimized by this therapy while C - reactive protein was not much effective by this therapy. Zinc gluconate also had the same therapeutic action against these manifestations. Clinical manifestations index before treatment ranged between 1 and 11 with mean ± SD of 5.65±1.98.After acitretin therapy the mean of CMI started to decline to reach 2.65 ±2.03 in first month of the therapy with (p=0.00001) which was statistically high significant and continued high significant till the end of the third month with (p - value > 0.000001). After cessation of acitretin and zinc gluconate started the mean continued to decrease to reach 2.05±2.52 at the end of the first month with (p=<0.000001) which was statistically high significant then; started to increase to reach 3.3 ±2.31 at the end of six month of the therapy but statistically remained high significant (p - value=0.0007). Both acitretin and zinc gluconate have statistically significant effect in reducing severity and frequency of oral ulcers, genital ulcers, skin and rheumatologic manifestations. Conclusions : oral acitretin was found to be an effective therapy in addition to its prophylactic action in treatment of muccocutaneous manifestations of Behcet,s disease. Also zinc gluconate had effective therapeutic action against these features of Behcet’s disease.

تاثــير مستوى الاسترادايول والبروجستيرون في اللعاب على حالة صحة الفم عند النساء اثناء الحمل == Effects of Salivary Level of Estradiol And Progesterone On Oral Health Status In Women During Pregnancy

Author name: زينة كامل كاظم
Supervisor name: هاجر ابراهيم عبد الله
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الحمل هو حالة فسيولوجية تجلب مجموعة واسعة من التغييرات في حياة المراة، بما في ذلك التعرض لامراض اللثة، ربما بسبب التغيرات الهرمونية المرتبطة مع الحمل. قد تؤثر الهرمونات الجنسية على اغشية الفم واللثة وربما هذا يؤدي الى العديد من الامراض اللثوية. ان هرمونا | Pregnancy is a physiological state that brings a wide range of changes in a woman’s life, including a susceptibility to gingival disease, probably due to hormonal changes associated with pregnancy. These female sex hormones may modify the oral mucosa and may lead to various degrees of gingival inflammation. The hormonal changes occurring during pregnancy may be associated with pregnancy gingivitis and gingival bleeding. Sex hormones are specific regulatory molecules have long been considered to play an influential role on periodontal tissues especially gingiva, bone turnover rate, wound healing and periodontal disease progression. Aims of the study1. Assessment of oral hygiene level and dental status in both second and third trimester pregnant women and compares results.2. Assessment salivary hormonal levels of endogenous female sex steroids in both second and third trimester pregnant women and compares results.3. Comparison of oral health status and endogenous female sex steroids salivary hormonal levels between gingivitis and non - gingivitis subgroups of both second and third trimester pregnant women groups.4. Find out the association between the gingival health status and salivary hormonal levels of endogenous female sex steroids (Estradiol and progesterone).Materials and methods This study was carried out on seventy - eight pregnant women who were attended for routine and regular follow up visits in obstetrics and gynecology department at Al - Yarmouk Teaching Hospital, from February 2013 to July 2013. This study was approved by the scientific committee in the department of oral medicine college of dentistry Al - Mustansiriya University. They were divided according to gestational age in to second trimester group and third trimester group. Fifty pregnant women (age range 18 - 38 years) and at gestational age was ranged between (20 - 27 weeks) were recruited as 2nd trimester group and Twenty - eight pregnant women (age range 18 - 39 years) at gestational age ranged between (28 - 33 weeks) were recruited as 3rd trimester group and according to Loe and Silness gingival index these two groups subdivided into gingivitis and non - gingivitis groups. Oral clinical examination including an assessment of gingival inflammation (Loe and Silness Gingival Index), Plaque amount (Silness and Loe Plaque Index), dental status (Decayed Missing Filling Teeth), and salivary flow rate (SFR) had also been done. Samples of whole unstimulated (resting) saliva were collected from all participants then investigated for sex steroids salivary hormonal levels of Estradiol, Progesterone. Results and discussion Oral health measurements including : GI, PLI, SFR and DMFT showed no significant difference between 2nd trimester and 3rd trimester groups. Sex steroids salivary hormonal levels of Progesterone showed a significant difference with higher mean value in 3rd trimester pregnant women than 2nd trimester pregnant women while sex steroids salivary hormonal levels of Estradiol showed no significant difference between two groups. Comparisons between gingivitis and non - gingivitis subgroups of 2nd trimester pregnant women group showed that there was highly significant difference in SFR with higher mean value in non - gingivitis group, and there was highly significant difference in PLI with higher mean value in gingivitis group, DMFT showed non - significant difference between the subgroups and (Estradiol and progesterone) salivary hormonal levels showed highly significant difference with higher mean values in gingivitis group. Comparisons between gingivitis and non - gingivitis subgroups of 3rd trimester pregnant women group showed that there was a non - significant difference in SFR, DMFT and a highly significant difference in PLI with higher mean value in gingivitis group, while progesterone salivary hormonal levels showed non - significant difference and Estradiol salivary hormonal levels showed a highly significant difference with higher mean value in gingivitis group. Comparison of GI between gingivitis groups of both 2nd and 3rd trimester pregnant women showed that there was a significant difference with higher mean value in 3rd trimester. Estradiol and progesterone salivary hormonal levels were non - significantly correlated with PLI and GI for gingivitis and non - gingivitis group of 2nd trimester pregnant women. Progesterone salivary hormonal level was non - significantly correlated with PLI and GI for gingivitis and non - gingivitis group of 3rd trimester pregnant women while Estradiol salivary hormonal level was non - significantly correlated with PLI and GI for non - gingivitis group and significantly correlated with PLI and GI for gingivitis group. GI and PLI for gingivitis groups of both 2nd and 3rd trimester revealed that there was a highly significant correlation.Conclusions Female Sex steroids hormones (Estradiol and Progesterone) salivary hormonal levels significantly increase from the second to the third trimester especially Estradiol and Play an important role in influencing gingival inflammation during pregnancy. These hormones are neither necessary nor sufficient to produce gingival changes by themselves. However, they may alter periodontal tissue responses to microbial plaque and thus indirectly contribute to gingivitis. Dental status in pregnant women is not significantly different between 2nd and 3rd trimester pregnant women groups. Women should be offered training in good oral hygiene habits, and community awareness programs should be conducted to increase their awareness of the crucial importance of such habits especially during pregnancy

قياس قوة الدفع للخارج لحشوات الجذور GuttaFlow 2 , Thermafil وGuttaCore : دراسة مختبرية == Push Out Bond Strength of Guttaflow 2, Thermafil, And Guttacore Obturation Materials (An In Vitro Study)

Author name: حيدر طالب فاضل
Supervisor name: جمال عزيز مهدي
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت هذه الدراسه المختبرية لقياس قوة ارتباط لثلاثه مواد مختلفة لحشوات قنوات الجذور باستخدام قوة الدفع للخارج.ثلاثون جذر حلقي مستقيم من الاسنان العلوية الخلفية استخدمت في هذه الدراسه وهذه الاسنان تم تحضيرها بتقنيه التاج السفلي باستخدام نظام المبارد الد | This in vitro study was carried out to investigate the push out bond strength of three different obturation materials GuttaFlow 2, Thermafil and GuttaCore at different levels.Thirty extracted upper molars were collected and the platal roots were sectioned at the CEJ of the tooth. The platal roots were instrumented with Hyflex CM rotary files to the size of 40/0.06.The instrumented samples were divided into three groups of ten samples each, the first group were obturated with GuttaFlow 2, the second group were obturated with Thermafil and the third group were obturated with GuttaCore obturating materials.After an incubation period of 7 days, each sample were sectioned into three sections of 2 mm thickness (apical, middle, coronal), each slice then introduced to the push out testing using a universal testing machine at a cross head speed of 0.5 mm/min. The result of this study showed Push - out bond strengths were significantly higher when canals were filled with GuttaCore than those filled with Thermafil and GuttaFlow 2. And Thermafil showed a higher significant difference than the GuttaFlow 2. It also showed that the bond strength values decreased from the coronal to the apical direction.In conclusion, the thermoplasticized gutta - percha appears to achieve higher push out bond strength values than the cold flowable gutta - percha. With GuttaCore showed higher push out bond values than Thermafil.

التاثيرات الدوائية لمادة - كاپا كراجينان - في مهنية طب الاسنان : دراسات داخل وخارج الانبوب == The Pharmacological Effects of Kappa Carrageenan In Dental Practice : An In Vitro And In Vivo Studies

Author name: اسيل جاسم علي
Supervisor name: هاجر ابراهيم عبد الله | مروان صالح النمر
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: كاراجينان هومركب يحتوي على پولي كلايكان الكبريتي وهو مستخلص من الطحلب الاحمر. الكراجين بطبيعته الغروية المائية يمتلك خواص هلامية,مثخنة ومستحلبة تسمح باستخدامه بكثرة في الصناعات الغذائية,مستحضرات الصحة الفموية والكماليات.وبسبب مركباته الحياتية الفعالة فقد

Evaluation of the Involvement of the Tempromandibular Joint in Patients with Osteoarthritis and the Accuracy of Ultrasonography as Compared to Computed tomography for Detection of Osteoarthritic Changes.

Author name: احمد عادل عثمان
Supervisor name: هاجر ابراهيم عبد الله
General topic: Dentistry
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: خلفية البحث : اضطرابات المفصل الفكي الصدغي تشير الى مصطلح مركب يحتوي على عدة حالات تتضمن المفصل الصدغي ,التركيبات المحيطة او كلاهما , تظهر على شكل الم في منطقة المفصل والعضلات المرتبطة,وتحدد بالقدرة على الحركة الطبيعية مثل المضغ, الكلام والبلع. مرض التهاب | Tempromandibular joint disorders is a collective term embracing a number of conditions affecting the TMJ, the surrounding structures or both,manifested by pain in the area of joint and associated muscles, and limitation in the ability to make normal movement like mastication,speech and swallowing. Osteoarthritis is a group of mechanical abnormalities involving degradation of joints, including articular cartilage and subchondral bone. Symptoms may include joint pain, tenderness, stiffness, locking, and sometimes an effusion. A variety of causes—hereditary, developmental, metabolic, and mechanical deficits may initiate processes leading to loss of cartilage. When bone surfaces become less well protected by cartilage, bone may be exposed and damaged. As a result of decreased movement secondary to pain, regional muscles may undergo atrophy, and ligaments may become more lax.Objective of the study : • To determine the extent of tempromandibular joint involvement in patients with osteoarthritis.• To evaluate the correlation between clinical and radiographical findings. • To evaluate the accuracy of sonography in detection of osteoarthritic changes compared to Computed tomography.Materials and method : A comparative study had been done using thirty six symptomatic patients(24 female and 12 male) above 40 years diagnosed as osteoarthritis by specialist rheumatologist in Alkarkh general hospital, with clinical finding related to osteoarthritis like pain,tenderness,crepitation, clicking and limited mouth opening. these patients were exposed to computed tomography(CT) scan (Philips - Brilliance 64) in Al - Karkh general hospital and then the results were compared with sonographic findings (Philips 12.5 MHz transducer) to see the disc displacement, effusion, erosion, flattening, osteolytic and osteophytic lesions in the condylar head.The period of the study started from (october - 2013 to june - 2014).Results : The result of the study showed that the mean age of osteoarthritic patients was (49.69) years, and female percentage (66.7%) and male(33.3%). Chief complaine showed more predilection in the left side (28%) and bilateral showed(56%).Clinically : limitation in mouth opening (50%),crepitation(36.11%), clicking (27.7%), and tenderness (20.8%). Radiographically Computed tomography(CT) scan showed disc displacement (50%), joint effusion (37.5%), flattening(36.11%), osteophyte(18,05%), and erosion(11.1%). There was significant correlation between clicking and joint effusion in computed tomography(CT),while tenderness showed significant correlation with osteophyte and joint effusion in sonography. Other correlations were non significant correlation between clinical and radiological changes. Association between computed tomography(CT) and sonography showed fair agreement in osteophyte detection,fair agreement in joint effusion,moderate agreement in detection of joint erosion,moderate agreement in reduction of space and anterior disc displacement and also moderate agreement in condylar head flattening. Conclusions : Osteoarthritis in tempromandibular joint may be unilateral or bilateral. About 50% of Patients with osteoarthritis have limitation in mouth opening. Clinical findings play a major role in diagnosis of osteoarthritis. The tempromandibular joint changes in osteoarthritis were the results of degenerative processes, in contrast to rheumatoid arthritis were the changes as a result of the disease. Sonography was more likely to be sensitive rather than specific in detection of osteoarthritic changes

حدوث وشدة الالم بعد استخدام ثلاثة انظمة مختلفة لتحضير قنوات الجذور == Incidence And Severity of Pain Following The Usage of Three Different Root Canal Instrumentation Systems

Author name: احمد حمد عبيد
Supervisor name: جمال عزيز مهدي
General topic: Dentistry
Specific topic: Dental Treatment
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Postoperative pain after endodontic procedures is an undesirable occurrence for both patients and clinicians. Certain factors may predispose to the development of postoperative pain. Knowledge of the causes and mechanisms behind interappointment pain in endodontics is of utmost importance for the clinician to properly prevent or manage this undesirable condition. The causative factors of interappointment pain encompass mechanical, chemical, and microbial injuries to the pulp or periradicular tissues, which are induced or exacerbated during root canal treatment. Ninety patients were recruited and included in this study out of one hundred and twenty patients, those patients requiring endodontic treatment on their permanent upper or lower molar teeth with asymptomatic irreversible pulpitis preoperatively, access opening and instrumentation was performed at the same visit.Patients ranged in age from 19 to 50 years old, and all were in good health, as determined from a written health history and oral interview.The patients were assigned randomly into three groups of 30 patients each : ? First group (n=30) : Teeth were instrumented using Universal ProTaper System (Full Rotary technique).? Second group (n=30) : Teeth were instrumented using ProTaper Next System (Full Rotary technique).? Third group (n=30) : Teeth were instrumented using WaveOne System (Reciprocating technique).Pain assessment carried out at day 1, 2, 3 & 7 using Verbal Rating Scale (4 - Point Scale). Patients recorded the incidence and severity of pain experienced.Patients were called at 24, 48 and 72 hours to obtain their reports for the first three days. Seven days after treatment their records were reviewed and percussion test was performed. Result showed that all groups induced Post - operative Pain, the difference is some systems cause more Post - Operative pain than other do : group 3 (WaveOne group) showed higher incidence and severity of PostoperativePain, followed by group 1 (Universal ProTaper group) that has shown less incidence and severity of Post - operative Pain than group 3 (WaveOne group), last group which it was group 2 (ProTaper Next group) has shown the lowest incidence and severity of Post - operative Pain. The data obtained were analyzed statistically using Chi Square test, total score for Verbal Rating Scale at day 1, 2, 3, and 7 showed that there was a highly significant differences between ProTaper Next group and other twogroups (P ? 0.001), and non - significant differences between ProTaper group and WaveOne group (P ? 0.05).

مستخلصات الشاي تاثيرها الذاتي او الاضافي على حياة خلايا السرطان : دراسة داخل وخارج الانبوب == Herbal Tea : Its Own Or Additive Effect On The Survival Of Cancer Cell Line : An In Vitro And Ex Vivo Study

Author name: هدى غسان حميد
Supervisor name: مروان صالح النمر | ناهي يوسف ياسين
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت هذه الدراسة في فرع الفارماكولوجي في كلية الطب في الجامعة المستنصرية بالتعاون مع مركز ابحاث السرطان والوراثة\الجامعةالمستنصرية خلال الفترة من شهر كانون الثاني - شهراب لسنة 2014. الدراسة اقرت من قبل مجلس كلية الطب. صممت هذه الدراسة لتوضيح فعالية نبات ا | This study was conducted in the Department of Pharmacology at College of Medicine with incorporation of the Iraqi Center for Cancer and Medical Genetic Research at Al - Mustansiriya University, Baghdad, Iraq during 2014. This study was designed to elucidate the anti - cancer effect of Camellia sinensis by using four types of tea (black, green, white and oolong). Two experimental cancer models applied in this study; cancer cell lines (In vitro) and mice - bearing tumor (ex vivo). Several methodological and extracted aqueous and organic solvents were used to extract the tea. Microwave assisted extraction using distilled water as a solvent is applied in this study as the yield of bioactive substances are higher than other methods and organic solvents. The antioxidant activity was evaluated through the quantification of total flavonoids, total polyphenolic compound (bioflavanoids), total flavonols, reducing power, and proanthocyanidines. The scavenging property against reactive nitrogen species also was studied. The result showed that the different tea types contain approximately the same quantity of phenolic compounds; the only significant difference was in the proanthocyanidins level, which is a class of flavanols, found in high quantity in green tea compared with other tea extracts. Moreover, a significant scavenging property of peroxynitrite radical observed with all tea extracts. The extracts of black, green and oolong tea prevented or halted nitric oxide generation whereas the white extract tea promoted its generation, that is, a nitric oxide donor. The in vitro cytotoxic activity of Camellia sinensis in form of black, green, white and oolong tea was evaluated against four different types of cell lines. These are the AMN3 mammary cell carcinoma, Rhabdomyosarcoma, HeLa cells and Rat embryo fibroblast cells). The results showed greater effect of green and black tea over white tea and oolong tea against mammary cell carcinoma while the results of rhabdomyosarcoma cell line, which is an aggressive cancer cell, revealed a significant inhibitory effect of the growth of these cells by white and oolong tea extracts. All four types show almost equal percent of growth inhibition on HeLa cell line with the white tea been the most significant. A significant inhibitory effect of all tea extracts against the growth of rat embryo fibroblast cells indicated that the cytotoxic effect of the Camellia sinensis extended to normal cells and not specific to cancer cell. In addition, the antitumor effect of tea extracts was investigated (ex vivo) on BALB - c mice bearing - tumor. The volume, shape and color of the tumor masses were examined, in addition to measurement of the tissue malondialdehyde level as a biomarker of the lipid peroxidation, total tumor protein measurement and a histopathological study were done. The white tea showed antitumor effect by attenuating all the biomarkers of tumorogenesis. Herbal tea extracts induced DNA damage in term of separation the double strands molecule of calf thymus double stands DNA and human genomic DNA which may partly explained anti - cancer effect. We concluded that white tea extract is a promising nutrient that ameliorates the histopathological changes in mice bearing mammary tumor via generation reactive oxygen species by the evidence of activation lipid peroxidation process. Camellia sinensis plant can induce non harmful effect on DNA

تاثير كل من عقار الروزوفاستاتين وعقار الاتورفاستاتين على مؤشرات نسب السكر المصاحبة للسمنة المحدثة في الفئران == Effects Of Atorvastatin Versus Rosuvastatin On Glycaemic Indices In Diet Induced Obese Mice

Author name: نورس لطيف وهاب
Supervisor name: علي اسماعيل عبد الله محمد | حيدر مطير القريشي
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Numerous interventional cardiovascular disease outcome studies have resulted in statins being an essential factor of cardiovascular primary and secondary prevention strategies.In recent years there was ahigh concern that statin use is associated with diabetes new onset which is strong, independent risk factor for cardiovascular (CV) and cerebrovascular outcomes ,several studies resulted in conflicting results regarding different statin types & dose effect on glycemic control. Atorvastatin which is the most widely used statin worldwide and rosuvastatin the most efficacious ;they have different structural characteristics that have been speculated to have influence on diabetes onset.Aim of the study : The present study aims at investigating the effect of different doses of atorvastatin and rosuvastatin on glycaemic indices and metabolic disorders on mice model of diet induced obesity. Materials and method : The animals were divided into two groups : one served as control that received normal regular chow & the other group received high fat diet for the whole 12 weeks of experiment.After eight weeks of HFD feeding ;group (2) farther subdivided into five groups(12 mice in each) ; the first group received HFD only ,the second group received single daily dose / po of 20mg /kg rosuvastatin ,the third group received single daily dose / po of 40mg /kg rosuvastatin ,the fourth group received single daily dose / po of 20mg /kg atorvastatin ,and the fifth group received single daily dose / po of 40mg /kg atorvastatin for the last four weeks of experiment.Body weight ,food intake, lipid profile ,glycaemic indices were taken at baseline ,before treatment and after treatment.At the end of experiment ,animals were sacrificed , plasma & tissue sample were collected for biochemical analysis and histological observations.Results : Results of the present study shows that high fat diet feeding resulted in obesity development and metabolic abnormality like; hyperglycemia ,hyperinsulinemia ,insulin resistance , dyslipidemia and moderate to severe hepatic steatohepetitis compared to control group. and treatment resulted in significant improvement in lipid profile ,reduction in food intake ,body weight ,also associated with improvement in insulin sensitivity , hepatic steatohepetitis and reduction in insulin secretion.twenty mg/kg dose of atorvastatin showed better influence on glycaemic indices and comparable influence on hepatic picture over fourty mg/kg does while twenty mg/kg dose of rosuvastatin resulted in deterioration of glycaemic indices and no apparent improvement in hepatic steatosis. Unlike group that received 40 mg /kg rosuvastatin which showed significant improvement in all related metabolic disorders. Conclusion : Feeding mice with high calories diet for 2 month result in induction of obesity and disturbance of metabolic parameters. Treatment with rosuvastatin or atorvastatin has good impact on bodyweight , metabolic derangements &hepatic steatosis in obese mice. Both drugs seems to improve lipid profile in dose dependent manner, however their effects on glycaemic indices has different attitude. It is seems that rosuvastatin, especially at high dose, has better impact on glycaemic indices than atorvastatin and this might attributed to the difference in their pharmacokinetic properties

التقييم الفسلجي للاعتلال العصبي الذاتي لمرضى داء السكري

Author name: نسرين قادر كامل
Supervisor name: محمد شريف عبد الله | موسى محمود مربط
General topic: Medicine
Specific topic: Physiology
Degree: Master
Language: English
University location: Baghdad
Key words:
  • Autouomic neuropaty
  • diabetics mellitus
  • heart rate
  • blood pressure
  • E C G
  • cardiovascular reflex
First pages:
Abstract: (Diabetes Mellitus) D.M : - is the most common endocrine disease, characterized by abnormalities of glucose, protein and lipid metabolism. Diabetic neuropathy is one of the long term chronic complications, which contributes to increase the morbidity & mortality rate in diabetes. One of the earliest manifestations of diabetic autonomic neuropathy is denervation of the cardiovascular system, assessment of cardiovascular reflexes affords a satisfactory evaluation. Along duration time.A battery of bedside clinical tests was used to assess the autonomic function of the heart. This is the response of blood pressure to sustained handgrip and standing - up. The R - R interval change and Q - T interval change in the E, C G in response to standing - up, deep breathing and valsalva maneuver. Number of the patients was 40 diabetic subject and 22 age and sex matched healthy controls. Insulin dependent diabetes Mellitus (IDDM) was 25(62.50%) of cases, non insulin dependent Diabetes Mellitus (NIDDM) was 15(37.5%) of cases, autonomic neuropathy was detected in 23 patients (57.5%), Orthostatic hypertension in 19 cases (47.5 %), abnormal blood pressure response to sustained hand grip in 20 (50%), abnormal valsalva ratio in 10 (25%), abnormal heart rate response to deep breathing in 11 cases (27.2%).Among the 13 patients with cardiac diabetic autonomic neuropathy, had a Q - Tc interval of > 440 ms ( p < 0.05 ). Compared to the remaining 4 patients had normal Q - Tc interval of 399.5 ± 37.49ms.Cardiovascular tests for cardiac autonomic neuropathy showed increase prevalence with increase in the duration of Diabetes Mellitus above 15 years.This study showed that diabetics had significantly impaired cardio - autonomic reflexes compared to non diabetics. Also, other group of diabetics who have apparently normal cardio - autonomic reflexes were found to have significantly different values compared to the control group, (heart rate variations with deep breathing and valsalva maneuver had a negative correlation with age)

تاثير استخدام عقار الميتفورمين منفردا او مع عقار السيتاكلبتين على مستويات الاومنتين - 1 لدى مرضى داء السكري من النوع الثاني == Effects Of Metformin Alone Or In Combination With Sitagliptin On Serum Omentin - 1 Levels In Patients With Type - 2 Diabetes Mellitus

Author name: ميقات طالب حمادة
Supervisor name: حيدر مطير خليل القريشي | عبد الكريم يحيى السامرائي
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: الخلفية : داء السكري يشير الى مجموعة من امراض الايض مع ارتفاع مستوى سكر الدم. يمثل النوع الثاني من داء السكري ما نسبته 90 - 95% من جميع حالات السكري. يمثل النقص في الانسولين ومقاومة الانسولين وغيرها من الاضطرابات الهرمونية المشاكل الاساسية لمرضى السكري من ال | Background : Diabetes mellitus (DM) describes chronic metabolic disorders with hyperglycemia. Type II DM (T2DM) represents for approximately 90 - 95% of all diabetic types. A combination of insulin deficiency, insulin resistance and other hormonal irregularities are key problems with T2DM. Adipose tissue can be classified into two types : the brown and white adipose tissues. The white type is considered an important secretory organ which produces many bioactive molecules, collectively termed adipokines. Recently, a new adipokine named omentin - 1, has been identified and it was found that individuals with impairment in glucose homeostasis and newly diagnosed T2DM showed a lower serum omentin - 1 level. However, the effects of antidiabetes drugs on serum omentin - 1 level had not been studied extensively.Objective : The current study was design to measure serum omentin - 1 in T2DM as comparing with control subjects, also to study the effect of three months therapy with metformin and/or sitagliptin (when added to ongoing metformin therapy) on serum omentin - 1 levels in addition to other parameters.Method : This study was carried out on thirty healthy control subjects, and sixty three T2DM patients. The patients enrolled in the current study were divided into two groups. First group : included thirty one of newly diagnosed T2DM patients, started treatment with metformin. Second group : included thirty two patients with T2DM, already on ongoing metformin therapy and started treatment with sitagliptin. All patients received their treatment for three months duration, and blood samples were collected from them at the beginning of the study and after three months of starting treatment to measure the possible change in the studied parameters which include : fasting blood glucose (FBG), postprandial blood glucose (PBG), Glycosylated haemoglobin (HbA1c), serum level of insulin, insulin resistance (IR), serum omentin - 1 levels, lipid profile, body mass index (BMI) as well as blood pressure. Results : The results showed that baseline level of serum omentin - 1 in the newly diagnosed T2DM was significantly lower than matched control subjects. The level of omentin - 1 was significantly reduced after three months duration of treatment in sitagliptin group with no significant change in metformin group. FBG, HbA1c and PBG were decreased significantly after three months in metformin group, while in sitagliptin group, only HbA1c and PBG were decreased significantly after three months. In both groups, and after three months duration of treatment, there were no significant changes in serum level of insulin, IR, TG, VLDL - C, HDL - C, BMI, and blood pressure.Conclusion : In newly diagnosed patients with T2DM, serum omentin - 1 was reduced compared to age and BMI matched healthy subjects. Three months treatment with sitagliptin resulted in a significant reduction in omentin - 1 levels compared with baseline values. However, three months treatment with metformin had no significant effect on serum omentin - 1 level compared with pre - treatment value

تاثير استخدام عقار الكلورال هيدريت منفردا او استعماله مجتمعا مع عقار الديازيبام كمهدئ عند قياس الاداء السمعي الدماغي عند الاطفال == Chloral Hydrate Alone Or In Combination With Diazepam As A Sedative For Auditory Brainstem Response Testing In A Pediatric

Author name: مريم محمد حميد مصطفى
Supervisor name: حيدر مطير خليل القريشي | حيدر وهاب السرحان
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت الدراسة الحالية لبحث تاثير استخدام الكلورال هيدريت منفردا او استعماله مع الديازيبام كمهدئ عند قياس الاداء السمعي الدماغي عند الاطفال من اجل تقييم ما اذا كان اضافة الديازيبام له تاثير ايجابي او سلبي.اعتمدت الدراسة الحاليه على160 متطوعا من الاطفال ال | Background : children usually need sedation for diagnostic and therapeutic interventions. It is well known that pediatrics age groups are at higher risk for sedation - related complications than adults. Auditory brainstem response testing is one of the important diagnostic procedure that usually need sedation in order to preformed in children. Chloral hydrate is a hypnotic agent used since 1832 with low incidence of adverse events; whoever, despite the world wide use it is being abandoned due to bitter test, long time of sedation onset, vomiting and mild sedation. Rectally diazepam, on the other hand, produces higher and fast concentration in CSF with greater rate of success but probably with higher adverse events. Aim of the study : were to compare the sedative effect of chloral hydrate with chloral hydrate diazepam combination as well as their related adverse effects in children underwentg auditory brainstem response testing. Methods : in this randomized clinical study, 160 child underwent sedation for auditory brainstem response test participated. They were divided equally and randomly into 4 groups. Group A : Received 20 mg/Kg oral chloral hydrate as sedative, Group B : Received 20 mg/Kg oral chloral hydrate plus 0.5 mg/Kg diazepam rectally, Group C : Received 40 mg/Kg oral chloral hydrate as sedative, and Group D : Received 40 mg/Kg oral chloral hydrate plus 0.5 mg/Kg diazepam rectally. At the beginning, blood pressure, respiratory rates, peripheral oxygen saturation recorded, and then re - recorded immediately after drug administration and at (3, 5, 10, 20, …. min). Ramsay sedation scale used for assessment of the sedation level which measured every 10 min. Results : This study shown the beneficial use of chloral hydrate in combination with diazepam as sedation in ABR test (in groups D) by increased in the sedated number (p<0.05), decreased in the requirement of chloral hydrate re - dose, increased in the number of children whom completed ABR test (p<0.05) without significant differences on side effects or vital signs compared with the others three groups. 4.3. Conclusion : From this study we concluded that : • Used of oral chloral hydrate in dose (20mg/kg) alone not sufficient as sedative in paediatrics for ABR test.• Used of oral chloral hydrate dose (20mg/kg) in combination with rectal diazepam (0.5 mg/kg) better than used it alone as sedative in paediatrics for ABR test.• Used of oral chloral hydrate dose (40mg/kg) in combination with rectal diazepam (0.5 mg/kg) was the best sedative in paediatrics for ABR test. • Used of Chloral hydrate diazepam combination in ABR test of paediatrics increased the number of the sedated children, decreased the requirement of chloral hydrate re - dose, and increased the number of completed ABR test, with less complication

تاثيرات استخدام عقار الفيراباميل وعقار السايكلوسبورين في حالة اعتلال عضلة القلب الناتج من استخدام عقار الدوكسوروبسين : في الفئران المختبرية == Effects Of Verapamil,Labetalol And Cyclosporine Use In The Condition Of Cardiotoxicity Resulted From Doxorubicin Use : Animal Model Study

Author name: محـمد عبد العزيز محـمد
Supervisor name: حيدر مطير خليل القريشي | خالد جمعة خليل
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: Doxorubicin is a member of anthracycline antibiotic that widely used in the treatment of different types of cancer such as hematological malignances, solid tumors, and different organ tumors, doxorubicin is very efficient in the treatment of cancer. But the use of doxorubicin is limited by the side effect of doxorubicin on the same organ, the most important organ that affected by doxorubicin is the heart, the toxicity of doxorubicin in the heart, the use of doxorubicin due to the cardiotoxicity that induced by doxorubicin will lead to cardiomyopathy and in the final result of these cardiotoxicity lead to congestive heart failure that occurred secondary to the cardiotoxicity may appear after long period of termination of treatment by doxorubicin.ObjectivesThe aim of the present study its investigate the possible modulation effect of drugs (verapamil, cyclosporine, labetalol) on the cardiotoxicity that induced by doxorubicin drug. Animals and methods forty Dwale - Spargue male rats where enrolled in this study, the animals divided into groups, (5) rats in each group and assigned as I,II,III,IV,V,VI,VII,VIII.Group I : received physiological saline (5ml/kg), orally, daily for ten days and served as the control.Group II : received a single dose of doxorubicin (15mg/kg), intraperitoneal and was sacrificed after 48 hours which served as doxorubicin group.Group III : received verapamil (5mg/kg), orally daily for ten days and on day eight, one hour after drug administration, a single dose of doxorubicin (15mg/kg), intraperitoneal were given.Group IV : received cyclosporine (0.5mg/kg), orally daily for ten days, and on day eight, one hour after drug administration, a single dose of doxorubicin (15mg/kg, intraperitoneal) was given.Group V : received cyclosporine (1mg/kg), orally daily for ten days ,and on day eight ,one hour after drug administration a single dose of doxorubicin (15mg/kg),intraperitoneal was given. Group VI : received both of verapamil (5mg/kg,orally) and cyclosporine (0.5mg/kg,orally) one hour apart, daily for ten days ,and on day eight, one hour after drug administration ,a single dose of doxorubicin (15mg/kg), intraperitoneal was given.Group VII : received labetalol (0.5mg/kg), orally daily for ten days, and on day eight, one hour after drug administration, a single dose of doxorubicin (15mg/kg, intraperitoneal) was given. Group VIII : received labetalol (1mg/kg, orally),daily for ten days ,and on day eight ,one hour after drug administration ,a single dose of doxorubicin (15mg/kg), intraperitoneal was given.Serum MDA, LDH, Troponin I, and interleukine - 17. Were measured and histopathological changes also viewed?ResultsThe results in this study showed an increase in the cardiac biomarkers in the doxorubicin group compared to the control group, the cardiac biomarkers that measured are LDH, MDA, Troponin I, interleukine - 17. Also the results showed histopathalogical changes in cardiac tissue in doxorubicin group as compared to the control group, also the results showed the pre - treatment with verapamil, cyclosporine low dose, cyclosporine high dose, combination of verapamil and cyclosporine low dose, labetalol low dose, labetalol high dose showed decreasing in the cardiac biomarkers MDA, LDH, Troponin I, interleukine - 17 to a significant amount compared to the doxorubicin group, also showed histopathlogical improvement in cardiac tissue. Conclusions Doxorubicin drug used as antineoplastic agent will produce a toxic effect on the cardiac tissue, this toxic effect will limit the use of doxorubicin, cyclosporine, labetalol and verapamil produced differential effects and protection from Doxorubicin induced cardio toxicity via amelioration of cardiac biomarkers and histopathological changes

عزل وتحديد هوية فيروس الحصبة في علاقته ببعض الجوانب المناعية من الاشخاص النازحين الملقحين في محافظة بابل == Isolation And Identification Of Measles Virus In Relation To Some Immunological Aspects From The Vaccinated Displaced Individuals In Babylon Governorate

Author name: ليث احمد عمران كيف الكيف
Supervisor name: محمد عبد كاظم حسن السعدي | يونس عبد الرضا كحيوش الخفاجي
General topic: Medicine
Specific topic: Microbiology
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت الدراسة لتقييم مناعة المجتمع لكلا النازحين والمقيمين الملقحين بلقاح فيروس الحصبة ضد خمج الحصبة في محافظة بابل. لذا تضمنت هذه الدراسة معايرة الحالة المناعية في امصال النازحين والمقيمين محافظة بابل مع عزل وتشخيص فيروس الحصبة من الحالات المشتبه بها. ت | The study was conducted to evaluate the herd immunity for both the displaced and residents vaccinated with measles virus vaccine against measles infection in Babylon governorate. Therefore this study includes the evaluation of the immune status in sera of Babylon governorate displaced and residents with specific aspect for isolation and identification of measles virus from suspected cases. The immune response was evaluated by means of ELISA test (enzyme linked immunosorbet assay) for titration of IgM and IgG immunoglobulin level, in addition to evaluation of perforin level in the sera of 90 measles vaccinated individuals included in this study (50 displaced and 40 residents) from different areas in Babylon governorate, that were collected during the period extent from January up to April of 2016. Data about individuals were fixed according to information of formula including age, sex, geographical location, place displace of displaced and the vaccination date. Successful virus isolation from suspected cases on two types of cells culture included Vero cells line and chicken embryo fibroblast was carried. The titer of the isolated virus on Vero cell line reached (105.8 TCID50 / 0.1ml),which was higher than the titer of the virus isolated on CEF which reach (105.4 TCID50 / 0.1ml) after the third passage of the virus. The isolated virus was confirmed by indirect immunofluorescence technique.The age of subjects included in this study ranged from <1 year up to 24 years old. The results revealed that 15 (30%) have positive IgM index in sera of displaced, whereas residents sera sample shown only 6 (15%) positivity. Howover, all 90 (100%) subjects of both groups showed positive IgG index. The results of the present study showed that there were no significant difference of perforin level in sera of refugees and residents at p<0.05.Assaying of immune response against measles virus by measuring IgM immunoglobulin in sera of vaccinated displaced and resident with measles vaccine reflected a highly significant difference between two groups which reached 0.43 mIU/ml in sera of displaced in comparison with residents sera which reached 0.34 mIU/ml. The result showed also high significant differences in IgM between females and males. The females sera IgM levels of displaced and residents were higher than its level in males sera which reached 0.47 mIU/ml and 0.35 mIU/ml, respectively, in comparison with male sera level which reached 0.40 mIU/ml and 0.32 mIU/ml, respectively. According to age group, the highest IgM value was recorded in displaced and residents sera in age group 10 - 14years (0.50 mIU/ml) and 5 - 9years (0.36 mIU/ml) respec - tively. Whereas the lowest IgM serum value was detected in age group <1 year (0.34 mIU/ml) and 15 - 19years (0.31 mIU/ml) for displaced and residents subjects. According to geographical location, the highest IgM level was detected in sera of displaced from Tal Afar city (0.44 mIU/ml) followed by displaced from Ramadi (0.41 mIU/ml) and the lowest IgM value was detected in sera of displaced from Mosul city (0.33 mIU/ml). Whereas the highest IgM value in sera of residents in the subjects of Al - Mahaweel city (0.37 mIU/ml) followed by subjects of Hilla and Al - Qasem city (0.29 mIU/ml and 0.28 mIU/ml) respectively. For IgG serum immunoglobulin the results revealed that there was no difference in significant levels in both group population. But according to age groups significant difference between displaced and residents was detected at p <0.05 in which the 1 - 4 years old showed the highest IgG serum level in both group (1.98 mIU/ml and 2.18 mIU/ml) respectively. While the lowest IgG sera value was recorded in displaced age group of < 1 year old (0.60 mIU/ml) compared with residents age group of 20 - 24 years old (1.65 mIU/ml).It could be concluded that the results showed that the displaced do not have any effect on the residents of the province of Babylon for measles as a result of the good immunization by Babil Health directorate following to the Ministry of Health.

تاثير استخدام عقار الميتفورمين منفردا او استعماله مجتمعا مع عقار كلكلزايد على مستوى الاومنتين - 1 - في مرضى داء السكري من النوع الثاني == Effects Of Metformin Alone Or In Combination With Gliclazide On Serum Omentin - 1 Levels In Patients With Type 2 Diabetes Mellitus

Author name: سمر محمد غني سليمان
Supervisor name: علي اسماعيل عبد الله محمد | حيدر فاضل الربيعي
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: اجريت الدراسة الحالية لبحث التاثير العلاجي لاستخدام عقار الميتفورمين منفردا او استعماله مجتمعا مع عقار كلكلزايد على مستوى الاومنتين - 1 - باالاضافة الى المؤشرات الحيوية الاخرى في مرضى داء السكري من النوع الثاني من اجل تقييم ما اذا كان الجمع بين العقارين ( | Background : Omentin is a newly identified adipokine, which is highly expressed in visceral adipose tissue, in which omentin - 1 is the main isoform in human circulation, associated with cardio - metabolic disturbances. So considering the impact of anti - diabetic drug on omentin - 1 levels may provide adjuvant strategy to protect diabetic patients against clinical hazards.Aim of the study : The present study aimed to investigate the influence of treatment with metformin alone or in combination with gliclazide on the level of serum omentin - 1, in addition to the other biomarkers adopted in the study in order to evaluate whether the combined therapy (metformin plus gliclazide) ameliorate or adversely effects on some cardiac protector markers of metformin among recently diagnosed patients with type 2 diabetes mellitus.Methods : A total number of 100 recently diagnosed patients with type 2 diabetes mellitus were enrolled in the present study from December 2014 until June 2015. Sixty eight patients completed the 12 weeks course of treatment; divided into two equal groups based on treatment regimen in which group1 treated with metformin and group2 treated with metformin plus gliclazide. Thirty two patients did not complete the course of the treatment for unknown reasons and considered as default. In addition to 31 healthy volunteers were randomly chosen and considered as Control Group. In which all the participants in the study underwent detection of blood pressure, pulse rate, weight, height & BMI in addition to the estimation of the levels of others biochemical analysis as glycemic indices, lipid profile & serum omentin - 1at the beginning of the study & after 12 weeks of treatment regimen.Results : The results of this study shown the beneficial amelioration of metformin on some markers that affect CVS represented as significant reduction in BMI (p<0.05), modest improvement in lipid profile with modest elevation in HDL level & lowering blood pressure, significant reduction in the levels of blood glucose & HbA1C (p<0.05), improves insulin sensitivity, reduced insulin resistance, and elevation of serum omentin - 1 level among newly diagnosed type 2 diabetic patients (group1). Furthermore, the results of current study are revealed that adding of gliclazide to metformin in treatment of type 2 diabetic patients might influence the documented beneficial effects of metformin on cardiovascular system at least by adversely changing the levels of serum omentin - 1 among group 2. Conclusions : Adding of gliclazide to metformin in treatment of patients with type 2 DM might extend the therapeutic action of metformin in regarding much better controlling of glycemic indices, insulin sensitivity and lipid profile. But, at the same time, it might attenuate some of beneficial effects of metformin on cardiovascular system at least by adversely influence on body weight and serum omentin - 1 levels.

تاثير استخدام عقار النكلوزمايد بالمقارنة مع عقار المتفورمين على وزن الجسم ومؤشرات السكر في السمنة المحدثة عند الفئران == Effects Of Use Of Niclosamide Drug In Comparison With Metformin Drug On Body Weight And Glycemic Indices In High Fat Diet Induced Obese Mice

Author name: خالد دهان صليبي
Supervisor name: علي اسماعيل عبد الله محمد | خالد جمعة خليل
General topic: Medicine
Specific topic: Medicines and Toxins
Degree: Master
Language: English
University location: Baghdad
First pages:
Abstract: في ستينيات القرن الماضي كان هناك نوع من العلاجات تستخدم للسيطرة على وزن الجسم او لتخفيفه , تلك المواد تعمل على تثبيط عضيات المايتوكوندريا من انتاج الطاقة وتحويل مجرى تفاعلات الاكسدة نحو انتاج الحرارة بدلا عن الطاقة وبذلك تحفز من زيادة اكسدة الشحوم ومادة ا | Background : Obesity is a state of excessive accumulation of fat tissue in the body , increasing energy expenditure is good way to manage obesity and the related complications. Mitochondrial uncouplers increase energy expenditure , they used before for weight controlling programs because these compounds uncouple mitochondria from generating ATP , moreover stimulate lipid and glucose oxidation preventing lipid accumulation in excess caloric intake conditions specially. Niclosamide an old drug introduced in 1960s as anthelmintic and had FDA approval for the treatment of most of tapeworm infections. It is well known mitochondrial uncoupler.Aim of the study : The present study aimed to investigate the influence of trial of the use of niclosamide in comparison to effect of metformin and their combination on body weight , glycemic indices and lipid profile in high fat diet induced obese mice.Materials and methods : The animals firstly divided to two groups one fed with normal regular mouse chow (30 mice) and the 2nd fed with high fat diet (60%kcal) for 2.5 months(100 mice) 10 mice from each group sacrificed at beginning of study represent baseline values and another 10 mice from each group sacrificed after 2.5 months to assess effect of high fat diet on study parameters. The group that fed with high fat diet further subdivided to 4 groups after 2.5 month of high fat diet feeding each 20 mice , 10 mice from each group sacrificed before treatment represent pretreatment values. Before treatment there are 5 groups assigned as group 1 fed normal regular mouse chow till the end of study , group 2 fed high fat diet without treatment till the end of study , group 3 fed with high fat diet till the end of study and treated with niclosamide for one month (150mg/kg) after obesity induction by high fat diet , group 4 fed with high fat diet till the end and treated by metformin (300mg/kg) for one month and finally group 5 fed with high fat diet till the end of study and treated by combination of niclosamide and metformin (150mg/kg , 300mg/kg respectively). blood samples taken from tail vein to evaluate the study parameters at baseline and after obesity induction by high fat diet (after 2.5 months) and after treatment ,then animals were sacrificed and livers were taken for histopathological observations.Results : The results of this study shown that the animals fed with high fat diet show metabolic disturbances manifested by significant increase (P < 0.05) in body weight , fasting insulin & fasting plasma glucose. Lipid profile show significant changes (P < 0.05)(cholesterol , triglycerides ,low density lipoproteins increased while high density lipoproteins decreased ) as compared to control group. High fat diet group also show impaired glucose tolerance , impaired insulin sensitivity and obvious liver structural changes manifested by sever steatosis.Treatment with niclosamide show improvement in all metabolic disturbances induced by obesity ; body Weight , fasting insulin and fasting plasma glucose reduced significantly (P < 0.05). Lipid profile parameters improved ; cholesterol , triglycerides , low density lipoproteins reduced significantly (P < 0.05) by one month treatment with niclosamide and high density lipoproteins increased significantly (P < 0.05) as compared to their baseline values before treatment, Glucose and insulin tolerance improved. It is nice to mention the influence of niclosamide in this study was comparable to metformin in all evaluated parameters.Combination of both drugs show favorable improvement in metabolic disturbances induced by obesity rather than each drug when used alone specially on liver histopathological changes.Combination of both drugs show significant reduction (P < 0.05) in body weight ,fasting plasma glucose and fasting plasma insulin. Lipid profile parameters improved significantly (P < 0.05) , glucose and insulin tolerance improved.Liver histopathological changes ameliorated to higher extent and become the closet to normal liver tissue morphology.Conclusions : The result suggest niclosamide have good antidiabetic action and can ameliorate the metabolic changes induced by obesity significantly. Its action is comparable to that of well known antidiabetic drug metformin. Niclosamide has favorable effect on body weight and can reduce body weight. Its combination with metformin show better improvement in metabolic disturbances induced by obesity and it has very good hepatoprotective effect against liver histopathological changes induced by high fat diet.
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