Experimental infection with Neospora caninum in pregnant bitches | Revista Brasileira de Parasitologia Veterinária
2012
Cavalcante, Guacyara Tenorio | Soares, Rodrigo Martins | Nishi, Sandra Mayumi | Hagen, Stéfano Carlo Filippo | Vannucchi, Camila Infantoni | Maiorka, Paulo Cesar | Paixão, Anaiá Sevá | Gennari, Solange Maria | Cavalcante, Guacyara Tenorio | Soares, Rodrigo Martins | Nishi, Sandra Mayumi | Hagen, Stéfano Carlo Filippo | Vannucchi, Camila Infantoni | Maiorka, Paulo Cesar | Paixão, Anaiá Sevá | Gennari, Solange Maria
p. 232-236
Показать больше [+] Меньше [-]In this study, transplacental transmission of Neospora caninum in bitches at different stages of pregnancy was evaluated. Three bitches were inoculated in the 3rd week and three in the 6th week of gestation with 108 tachyzoites of N. caninum (Nc-1 strain). All the infected bitches and at least one of their offspring presented anti-N. caninum antibodies according to the indirect fluorescent antibody test (IFAT > 400). The pups and their mothers were sacrificed and tissues from the central nervous system (CNS), popliteal lymph nodes, skeletal muscle, brain, lungs, heart and liver were analyzed for the presence of N. caninum using the nested polymerase chain reaction (nested PCR), restriction fragment length polymorphism (RFLP) and immunohistochemistry (IHC). The parasite was found in the pups in lymph node, CNS, heart and liver tissues using nested PCR. There was no difference in perinatal mortality between the offspring from bitches infected in the 3rd week of gestation (60%) and in the 6th week (53.8%).
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