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دور Foxp جين والاحماض النووية الرايبوية متناهية الصغر ,145 ,146a ,20aفي عينة من المرضى العراقيين المصابين بمرض تصلب الاعصاب المنتشر == The Role of Foxp3 and MicroRNAs (20a, 146a, 145, and 155) in a Sample of Iraqi patients with Multiple sclerosis
Author name:
زينب عبد الاله عبد الجواد الجوادي
Supervisor name:
عائدة رشيد منصور الدرزي | بان عباس عبد المجيد
General topic:
Medicine
Specific topic:
Microbiology - Immunology
Degree:
Doctorate
University:
University of Baghdad - Faculty Of Medicine
Language:
English
University location:
Baghdad
First pages:
19T1299 - p.pdf
Abstract:
Multiple sclerosis is a devastating central nervous system autoimmune disorder that is characterized by a series of inflammations, demyelinations, and neurodegenerations that affect the brain and spinal cord. The epigenetic studies specially micro Ribonucleic acid expression represent an important field of researches that probably uncover the obscurities behind the multiple sclerosis pathogenesis. The aims of the present work were to study the expression of micro Ribonucleic acids (20a, 146a, 155, and 145) and forkhead box P3 genes by real time polymerase chain reaction relative quantification technique, to correlate their expression according to different clinical parameters, and to perform chromosomal analysis on the multiple sclerosis patients peripheral blood lymphocytes. A case - control study was performed on 25 newly diagnosed untreated multiple sclerosis patients during their attendance to Multiple Sclerosis clinic, or during their admission to the Neuromedical ward (10th floor) in Baghdad Teaching Hospital, and Special Nursing Home (5th floor) in Baghdad Medical City as well as from the Neuromedical Consultancy Unit in Al - Yarmouk Teaching Hospital in Baghdad city, in addition to 25 apparently healthy controls which were medical staff with no history of having any autoimmune disease or receiving any steroid or immunomodulatory therapy. Furthermore, chromosomal analysis was performed for multiple sclerosis patients. This work was conducted during the period from 1st of April 2015 to 31st of March 2016.From a total of 25 multiple sclerosis patients, 23 of them were females and 2 were males with a female to male ratio (F : M) of 11.5 : 1. The ages of these patients ranged between 18 - 55 years; mean age was 33.32 + 9.45 years. Studying of micro Ribonucleic acids expression revealed a significant down - regulation in micro Ribonucleic acid - 20a and forkhead box P3 gene while up - regulation of micro Ribonucleic acid - 155 expression in multiple sclerosis patients in comparison to controls. Micro Ribonucleic acid - 146a was directly associated with inflammation, and multiple sclerosis disease activity. On the other hand, micro Ribonucleic acid - 145 was not associated with significant changes in its expression in relation to multiple sclerosis disease. Chromosomal analysis was done for multiple sclerosis patients and it was normal.In conclusion, multiple sclerosis is associated with significant changes in micro Ribonucleic acids expression including micro Ribonucleic acid - 20a, micro Ribonucleic acid - 146a, and micro Ribonucleic acid - 155 but not micro Ribonucleic acid - 145 as well as to a significant change in forkhead box P3 gene expression that can be measured by real time polymerase chain reaction technique. Furthermore, multiple sclerosis is not associated withgross chromosomal abnormalities.
