Results 141 to 150 of about 3,079 (166)
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Association of TMEM154 variants with visna/maedi virus infection in Turkish sheep

Small Ruminant Research, 2019
Abstract Visna/maedi (VM) is a multisystemic disease of sheep characterized by persistent lentiviral infection, slow progression and eventually death. The VM virus (VMV) affects sheep throughout the world and is the focus of national eradication campaigns.
ÖNER, YASEMİN   +13 more
openaire   +4 more sources

Early events in the experimental interstitial lung disease induced in sheep by the Visna-maedi virus

Immunology Letters, 1993
Visna-maedi virus is a lentivirus closely related to the human immunodeficiency virus type I (HIV-I). During spontaneous infection of sheep by Visna-maedi virus an interstitial lung disease is observed. It is characterized by an alveolitis, peribronchovascular lymphoid nodules, alveolar wall thickening and myomatosis. In order to decipher the pathology
Cadore, J.L.   +9 more
openaire   +7 more sources

Visna-maedi Virus Induces Interleukin-8 in Sheep Alveolar Macrophages through a Tyrosine-kinase Signaling Pathway [PDF]

open access: possibleAmerican Journal of Respiratory Cell and Molecular Biology, 1998
The mechanisms leading to the severe lung damage seen in some sheep naturally infected with the visna-maedi virus, and to pulmonary lesions in other lentiviral diseases, appear to involve the recruitment of large numbers of uninfected inflammatory cells.
Hélène Levrey   +4 more
openaire   +2 more sources

Characterization of the immunodominant cross-reacting epitope of visna maedi virus and caprine arthritis-encephalitis virus capsid antigen

Virus Research, 1999
Maedi visna (MV) and caprine arthritis-encephalitis (CAE) are two retroviral infections distributed world wide. Antigenic cross reactions between the viruses have been demonstrated in gag and env encoded structural proteins. Antigens from ovine lentiviruses are easier to produce in cell culture systems and therefore have been used in the development of
ROSATI, Sergio   +3 more
openaire   +3 more sources

La pathogenese du virus Visna-Maedi : modèle expérimental pour l'étude des Lentivirinae

Médecine et Maladies Infectieuses, 1987
Resume La pathogenese des Lentivirinae est liee a l'ambiguite pathologique des maladies progressives, lentes, causees par des Retrovirus non oncogenes. Le tropisme de ces virus pour certaines cellules, macrophages pour le Visna-Maedi, CAEV et AIEV, lymphocytes pour le HIV, est du a la presence de recepteurs cellulaires. La maturation ou stimulation
C. Bosgiraud   +2 more
openaire   +2 more sources

Pathogenesis of visna/maedi and caprine arthritis-encephalitis: New leads on the mechanism of restricted virus replication and persistent inflammation

Veterinary Immunology and Immunopathology, 1987
Lentiviruses are unique retroviruses which cause diseases with long incubation periods and prolonged clinical courses. The prototype lentiviruses, visna/maedi of sheep and arthritis-encephalitis virus of goats (CAEV), infect cells of the monocyte-macrophage system and replicate at a restricted level in these cells.
Janice E. Clements   +3 more
openaire   +3 more sources

Seroprevalence and risk factors associated with Visna/Maedi virus in semi-intensive lamb-producing flocks in northwestern Spain

Preventive Veterinary Medicine, 2012
A cross-sectional study was carried out to determine Visna/Maedi virus (VMV) seroprevalence and risk factors in semi-intensive lamb-producing flocks as a prelude to establishing a monitoring program in northwestern (NW) Spain. A total of 15,155 serum samples were taken from 78 commercial flocks and were submitted to an indirect VMV ELISA.
Gonzalo Fernández   +8 more
openaire   +3 more sources

Alveolar macrophages from sheep naturally infected by visna-maedi virus contribute to IL-8 production in the lung

Veterinary Immunology and Immunopathology, 1997
Sheep naturally infected by visna-maedi virus often develop a chronic interstitial lung disease characterized by an alveolitis comprising lymphocytes, neutrophils and macrophages. The alpha chemokine interleukin-8 (IL-8) was detected in cell free bronchoalveolar lavage fluid from naturally infected animals, confirmed by RT-PCR, presenting typical ...
G. Cordier   +3 more
openaire   +3 more sources

Visna-maedi virus-induced expression of interleukin-8 gene in sheep alveolar cells following experimental in vitro and in vivo infection

Research in Virology, 1996
Visna-maedi virus is a lentivirus which causes inflammatory disorders in sheep, including a chronic interstitial lung disease resembling that observed in human immunodeficiency virus type 1 (HIV 1) infection. In view of our previous demonstration of the production of neutrophil chemotactic activity by alveolar macrophages, and given the lymphocytic and
François Guiguen   +6 more
openaire   +3 more sources

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