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Iranian Journal of Parasitology، جلد ۴، شماره ۳، صفحات ۴۰-۵۱
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عنوان انگلیسی Molecular and Pathological Study of Bovine Aborted Fetuses and Placenta from Neospora caninum Infected Dairy Cattle
چکیده انگلیسی مقاله Background: The objective of the study was to evaluate the presence of Neospora caninum organisms in the brain of aborted fetuses and placentas of full-term calves born of seropositive cows. Methods: During 2006-2007, 12 brains of aborted calves from Neospora seropositive cattle and 7 pla­centas from seropositive dams giving birth to full-term calves, from four dairy cattle farms located around Tehran province, Iran were examined by Nested-PCR and histopathology techniques. Result: The Nested-PCR demonstrated that all of 12 aborted fetal brain samples and 5 of 7 placentas were infected by N. caninum. Mild to severe placentitis was observed in 5 placentas. Severe hyperemia and pe­rivascular and perineuronal edema revealed in all fetal brain. In 3 out of 12 brains, scattered foci of he­morrhages, neuropilar necrosis and gliosis were present. In addition, nonpurulent encephalitis with severe lymphohistiocytic perivascular cuffing in one case and a small tissue cyst like Neospora caninum cyst in other calf were observed. Conclusion: Our results confirmed the molecular and histopathologic findings of other studies about Neos­pora caninum infection and it seems to support the hypothesis that Neospora infection is associated with bovine abortion in Iran.
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نویسندگان مقاله n صالحی | n salehi


h حدادزاده | h haddadzadeh


j اشرفی هلان | j ashrafihelan


p شایان | p shayan


a sadrebazzaz | a sadrebazzaz


نشانی اینترنتی http://ijpa.tums.ac.ir/index.php/ijpa/article/view/107
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