Prrsv
Mostrando 1-12 de 57 artigos, teses e dissertações.
-
1. Chemical constituents from Chirita longgangensis var. hongyao with inhibitory activity against porcine respiratory and reproductive syndrome virus
Dois novos quinenóides chiritalona A and B, e uma nova neolignina 7'E-4,9-dihidroxi-3,3',5'-trimethoxi-8,4'-oxineolign-7'-en-9'-al, além dos conhecidos (-)-8-hidroxi-α-dunniona, digiferruginol, 2,5-dimetoxi-1,4-benzoquinona e hederagenina, foram isolados do caule de Chirita longgangensis var. hongyao. As estruturas dos novos compostos foram elucidadas por
J. Braz. Chem. Soc.. Publicado em: 09/11/2012
-
2. Achados histopatológicos e imuno-histoquímicos de suínos com infecção espontânea de influenza A no Brasil, 2009-2010
Influenza suína (IS) é uma doença altamente contagiosa, de curso rápido e pronta recuperação, causada pelo vírus influenza tipo A (SIV). Os principais sinais clínicos são tosse, febre, anorexia e baixo desenvolvimento. A doença está presente em outros países e, geralmente, está associada com outros agentes infecciosos. No Brasil, a primeira desc
Pesq. Vet. Bras.. Publicado em: 2012-11
-
3. Development and evaluation of a loop-mediated isothermal amplification (LAMP) assay for rapid detection of Actinobacillus pleuropneumoniae based the dsbE-like gene
This paper reports on the development and validation of a loop-mediated isothermal amplification assay (LAMP) for the rapid and specific detection of Actinobacillus pleuropneumoniae (A. pleuropneumoniae). A set of six primers were designed derived from the dsbE-like gene of A.pleuropneumoniae and validate the assay using 9 A. pleuropneumoniae reference/field
Pesq. Vet. Bras.. Publicado em: 2012-08
-
4. MAPEAMENTO E DELEÇÃO DE EPÍTOPOS LINEARES DE LINFÓCITOS B EM PROTEÍNAS DO VÍRUS DA SÍNDROME RESPIRATÓRIA E REPRODUTIVA DOS SUÍNOS PARA A PRODUÇÃO DE UMA VACINA DIFERENCIAL / MAPPING AND DELETION OF B-CELL LINEAR EPITOPES IN PROTEINS OF PORCINE REPRODUCTIVE AND RESPIRATORY SYNDROME VIRUS FOR THE PRODUCTION OF A DIFFERENTIAL VACCINE
Porcine reproductive and respiratory syndrome virus (PRRSV) was isolated for the first time in 1991 and since then it has been associated with significant economic losses to the pig industry worldwide. Although vaccination against PRRSV is widely used, an important advance would be the development of marker vaccines allowing serologic discrimination between
Publicado em: 2008
-
5. Ausência de infecção pelo vírus da síndrome reprodutiva e respiratória dos suínos (PRRS) em suínos domésticos no Brasil
Este artigo descreve a primeira prevalência de anticorpos e inoculação experimental de amostras suspeitas do vírus da síndrome reprodutiva e respiratória dos suínos (PRRSV) de suínos de rebanhos do Brasil positivos pelo teste de ELISA. Com base na hipótese de que este agente está presente em plantéis de suínos mundialmente, o objetivo deste traba
Ciência Rural. Publicado em: 2004-04
-
6. Interaction between Porcine Reproductive-Respiratory Syndrome Virus and Bacterial Endotoxin in the Lungs of Pigs: Potentiation of Cytokine Production and Respiratory Disease
Porcine reproductive-respiratory syndrome virus (PRRSV) is a key agent in multifactorial respiratory disease of swine. Intratracheal administration of bacterial lipopolysaccharides (LPSs) to PRRSV-infected pigs results in markedly enhanced respiratory disease, whereas the inoculation of each component alone results in largely subclinical disease. This study
American Society for Microbiology.
-
7. In Utero Infection by Porcine Reproductive and Respiratory Syndrome Virus Is Sufficient To Increase Susceptibility of Piglets to Challenge by Streptococcus suis Type II
Porcine reproductive and respiratory syndrome (PRRS) consistently elevates the frequency of disease and mortality in young pigs. Many different secondary bacterial diseases occur in PRRS virus (PRRSV)-infected pigs. However, to date, establishing a reproducible experimental model of PRRSV infection in weaned pigs, with subsequent clinical disease following s
American Society for Microbiology.
-
8. In vivo detection of porcine reproductive and respiratory syndrome virus RNA by in situ hybridization at different times postinfection.
We studied the distribution of porcine reproductive and respiratory syndrome virus (PRRSV) RNA in tissues by in situ hybridization at different times postinfection (p.i.). The probe used for in situ hybridization was prepared by reverse transcription of PRRSV RNA, followed by PCR amplification of the cDNA. The sequence amplified corresponded to 433 bp from P
-
9. Detection of porcine reproductive and respiratory syndrome virus in boar semen by PCR.
Porcine reproductive and respiratory syndrome virus (PRRSV) causes a devastating disease in swine. The presence and transmission of PRRSV by boar semen has been demonstrated by using a swine bioassay. In this assay, 4- to 8-week-old pigs were inoculated intraperitoneally with semen from PRRSV-infected boars. Seroconversion of these piglets indicated the pres
-
10. Mycoplasma hyopneumoniae Potentiation of Porcine Reproductive and Respiratory Syndrome Virus-Induced Pneumonia
An experimental model that demonstrates a mycoplasma species acting to potentiate a viral pneumonia was developed. Mycoplasma hyopneumoniae, which produces a chronic, lymphohistiocytic bronchopneumonia in pigs, was found to potentiate the severity and the duration of a virus-induced pneumonia in pigs. Pigs were inoculated with M. hyopneumoniae 21 days prior
American Society for Microbiology.
-
11. Identification of a Putative Receptor for Porcine Reproductive and Respiratory Syndrome Virus on Porcine Alveolar Macrophages
To identify the receptor which may determine the macrophage tropism of porcine reproductive and respiratory syndrome virus (PRRSV), monoclonal antibodies (MAbs) against porcine alveolar macrophages (PAM) were produced. Two MAbs (41D3 and 41D5) which completely blocked PRRSV infection of PAM were further characterized. It was found that they reduce the attach
American Society for Microbiology.
-
12. Porcine reproductive and respiratory syndrome virus replicates in testicular germ cells, alters spermatogenesis, and induces germ cell death by apoptosis.
Like other arteriviruses, porcine reproductive and respiratory syndrome virus (PRRSV) is shed in semen, a feature that is critical for the venereal transmission of this group of viruses. In spite of its epidemiological importance, little is known of the association of PRRSV or other arteriviruses with gonadal tissues. We experimentally infected a group of bo