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عزل وتشخيص جزيئي لمورثات مجاميع الانماط المصلية لجرثومة اللستيريا المستوحدة Listeria monocytogenes من الانسان والحيوانات في محافظة القادسية == Isolation And Molecular Detection of Serotype Genes Group of Listeria Monocytogenes From Human And Animals In Al - Qadissyia Province
Author name:
حسين عمران كريم العابدي
Supervisor name:
هدى عبد الهادي علي النصراوي
General topic:
Veterinary Medicine
Specific topic:
Common Diseases
Degree:
Master
University:
University of Al-Qadisiyah - College Of Veterinary Medicine
Language:
Arabic
University location:
Qadisiyah
First pages:
21T519 - p.pdf
Abstract:
اجريت الدراسة الحالية خلال الفترة من تشرين الثاني 2014 الى نيسان 2015، جمعت العينات المرضية من النساء التي تعاني من حالات الاجهاض وولادة مبكرة والاطفال المصابين بالتهاب السحايا من مستشفى الولادة والاطفال التعليمي وقد جمعت العينات تحت اشراف طبي متخصص وكان | This study was carried out during the period from November 2014 to April 2015, whereas samples were collected from women that suffered of abortion and infected children in the maternal and children hospital in Al - Qadissiya province , so the samples were collected under supervising of a specialist medicine , the number of taken samples of the women is 65 samples , while the number of taken samples of children is 32 samples , so the samples that belong to animals have included a gall bladder samples were collected from Al - Diwaniya slaughterhouse were 100 samples of sheep and 100 samples of cows. in addition to collect 200 samples of milk as 100 samples for each sheep and cows from different rural zones in al - Qadissiya province. L.monocytogenes was isolated by using oxford listeria selective agar for listeria , so the special stimulator for growth of the bacteria was added to it in order to determine the type of bacteria , also it diagnosed an isolates for L.monocytogenes by using the microscopically examination and biochemical tests , furthermore the germ isolates was planted on blood agar for diagnosing the blood analysis type : ? - heamolysis as affirmative checking for the isolates. also PCR technique used for affirming the diagnosing of L. monocytogenes by using the initiator for the blood analysis gene (hly) , whereas all the L. monocytogenes isolates' gave a positive result in inspection , so this technique is used too in the detection about the serous types for L.monocytogenes isolates by the molecular diagnosing for the fierce genes of the germ and these are (D1,D2,Glt,FlaA and MAMA gene ). The results of the research showed that isolating and diagnosing percentage of the Listeria monocytogenes is about 9.27%, whereas the isolation percentage in women infected in abortion is 4.61%, while the percentage of listeria germ isolation was higher in the children that infected in meningitis whereas it was 18.75% of the total amount of the samples.As for the percentage of the isolating in sheep it was 4% and 7% for milk and gall bladder respectively. In the cows the isolation percentage of the germ from milk and gall bladder was 2% and 3% respectively. So the the results of isolating for listeria germ during the study period in human and animals were disparate , whereas the highest percentage of isolation for the germ in human were scored in January and February months of the year whereas it scored 20% and 16% respectively.As for sheep the percentage of isolation was higher in December and January months whereas it is 6.25% and 10% respectively , while in the cows the percentage was higher in January and February months where it is 4.2% and 7.4% respectively. Regarding The results of detection about the genes of the serous types for the isolates of L.monocytogenes by using PCR technique 14 isolates of the samples showed a positive result when they react with the initiator for gene (D1)in percentage about 56%, so this isolates showed a positive result when they react with the initiator for gene (Glt) as amount of 5 isolates and they classified to be belong to the serous types (1/2B or 3B), while 9 isolates gave a negative result in the inspection , whereas these isolates were tested with the initiator for gene (MAMA), 5 isolates showed a positive result in this reaction with this gene and they classified to be belong to the serous types (4c or 4a), while 4 isolates gave a negative result as they classified to be belong to the serous types (4b or 4d or 4c).As for the isolates' that gave a negative result with the initiator of gene (D1)there are 11 isolates all these isolates gave a positive result when they inspected with the initiator of gene (D2) in a percentage about 44%, so when these isolates inspected with the initiator for gene (FLaA) then 6 isolates of them gave a positive result in the inspection and classified as they belong to (1/2a or 3a), while 5 isolates of them gave a negative result in the inspection and classified as they belong to (1/2c or 3c). As for the serous types that have not diagnosed in the germ isolates of the human there are(1/2a or 3c), while in the germ isolates of the sheep the serous types (4a or 4c) have not been diagnosed , then the serous types (1/2b or 3b) have not been scored in the cows. The present study concluded that the percentage of infection in L.monocytogenes was high in human in al - Qadissiya province , in which that refer to the risks of the diseases and health problems spread that could be caused by L.monocytogenes , also the results included isolating the germ from milk and gall bladder samples for sheep and cows that could be a source to carry the infection to the human by contaminating the meat, milk and its derivatives'. whereas the isolation percentage of the germ was higher in the cold months of the year in human and animals, so the highest isolation percentage of the serous types for the L.monocytogenes in human and cows were (4a , 4c) , while in sheep the serous types were (1/3c,3c).
