7 documents found, page 1 of 1
Sodium dodecyl sulfate as a viral inactivator and future perspectives in the co...
de Sousa,Ana Lídia Madeira; Pinheiro,Raymundo Rizaldo; Araújo,Juscilânia Furtado; de Azevedo,Dalva Alana Aragão; Peixoto,Renato Mesquita; Andrioli,AliceABSTRACT Infections by small ruminant lentiviruses (SRLVs) affect goats and sheep causing chronic multisystemic diseases that generate great economic losses. The caprine lentivirus (CLV) and the ovine lentivirus (OLV) present tropism for cells of the monocyte/macrophage lineage, which are directly associated with the main route of transmission through the ingestion of milk and colostrum from infected animals. I...
Sheep infection by caprine lentivirus
Souza,Thiago Sampaio de; Pinheiro,Raymundo Rizaldo; Lima,Carla Caroline Valença de; Brito,Roberta Lomonte Lemos de; Azevedo,Dalva Alana Aragão deSUMMARY The objective of this study was to demonstrate iatrogenic transmission of small ruminant lentivirus (SRLV) from goats to sheep and horizontal transmission between sheep. The study was conducted on a farm with separate goat and sheep rearing, and animals were monitored for lentivirus occurrence by clinical examination and testing by immunoblotting (IB), agar gel immunodiffusion (AGID), and nested polymer...
Evaluation of caprine arthritis-encephalitis virus transmission in newborn goat...
Rodrigues,Apoliana de Sousa; Pinheiro,Raymundo Rizaldo; Brito,Roberta Lomonte Lemos de; Oliveira,Leandro Silva; Oliveira,Eduardo Luiz deABSTRACT: Caprine arthritis encephalitis causes considerable losses in goat production. The main form of the caprine arthritis encephalitis virus transmission is through the ingestion of colostrum or milk from infected females. However, some transmissions cannot be explained in this manner. Therefore, this study aimed to evaluate transplacental transmission of caprine arthritis encephalitis virus. Blood samples...
Small ruminant lentiviruses: economic and productive losses, consequences of th...
Azevedo,Dalva Alana Aragão de; Santos,Vanderlan Warlington Souza dos; Sousa,Ana Lídia Madeira de; Peixoto,Renato Mesquita; Pinheiro,Raymundo RizaldoABSTRACT: Small ruminant lentiviruses, caprine arthritis encephalitis virus, and Maedi-Visna virus cause diseases that result in significant productive losses, mostly in dairy animals. These viruses belong to the Retroviridae family, Lentivirus genus, and constitute a heterogeneous group, which may generate implications for the diagnosis and control of small ruminant lentiviruses. Losses caused by them are asso...
Interspecific transmission of small ruminant lentiviruses from goats to sheep
Souza,Thiago S. de; Pinheiro,Raymundo R.; Costa,Joselito N.; Lima,Carla C.V. de; Andrioli,Alice; Azevedo,Dalva A.A. de; Santos,Vanderlan W.S. dosThis study was conducted in order to evaluate the transmission of caprine lentivirus to sheep using different experimental groups. The first one (colostrum group) was formed by nine lambs receiving colostrum from goats positive for small ruminant lentiviruses (SRLV). The second group (milk group) was established by nine lambs that received milk of these goats. Third was a control group, consisting of lambs that...
Detecção do vírus da Artrite Encefalite Caprina por nested PCR e nested RT-PCR ...
Cavalcante,Francisco Roger Aguiar; Andrioli,Alice; Pinheiro,Raymundo Rizaldo; Souza,Kelma Costa de; Veras,Ana Kamila Andrade; Lopes,Tânia AzevedoA Artrite Encefalite Caprina (CAE) é uma enfermidade infectocontagiosa causada por um vírus pertencente ao gênero lentivírus, denominado de vírus da Artrite Encefalite Caprina (CAEV). O CAEV é encontrado em vários tecidos, como o nervoso, o pulmonar, o da glândula mamária e do trato genital masculino e feminino. Desta forma, objetivou-se com este trabalho identificar a presença do CAEV, pelas técnicas de diagnó...
Fatores de risco na transmissão do lentivírus caprino pelo sêmen
Andrioli,Alice; Gouveia,Aurora Maria Guimarães; Martins,Almir de Sousa; Pinheiro,Raymundo Rizaldo; Santos,Diones OliveiraO objetivo deste trabalho foi avaliar a presença do DNA pró-viral do lentivírus caprino (LVC) em ejaculados de machos infectados naturalmente, e verificar a influência da lavagem do sêmen e da presença de inflamação testicular sobre a carga viral. Foram realizadas oito coletas de sêmen de sete reprodutores soropositivos para o LVC: quatro antes dos animais sofrerem dano testicular e quatro depois. Entre as cole...