Results 181 to 190 of about 4,543 (220)

Antigenicity of subregions of recombinant bovine leukemia virus (BLV) glycoprotein gp51 for antibody detection

Journal of Virological Methods, 2023
Bovine leukemia virus (BLV) is an enveloped virus, found worldwide that can infect cattle and induce many subclinical symptoms and malignant tumors. BLV infection causes severe economic losses in the cattle industry. The identification of BLV-infected cattle for segregation or elimination would be the most effective way to halt the spread of BLV ...
Lanlan, Bai, Mariko, Soya, Minori, Ichikawa, Ryosuke, Matsuura, Yutaka, Arimura, Satoshi, Wada, Yoko, Aida   +6 more
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The recent prevalence of bovine leukemia virus (BLV) infection among Japanese cattle

Veterinary Microbiology, 2011
A seroepidemiological survey of bovine leukemia virus (BLV) infection was conducted in Japan in 2007 using an enzyme-linked immunosorbent assay (ELISA) and an agar gel immunodiffusion (AGID) test. A total of 5420 cattle (dairy, 3966; breeding beef, 797; fattening beef, 657) from 209 farms in seven prefectures in Japan were tested.
Kenji, Murakami, Sota, Kobayashi, Misako, Konishi, Ken-ichiro, Kameyama, Takehisa, Yamamoto, Toshiyuki, Tsutsui   +5 more
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Synthesis of functional bovine leukemia virus (BLV) p34 protein by recombinant baculoviruses

Virology, 1989
The bovine leukemia virus (BLV) p34tax (also called tat, p34, XLOR gene product) is a 34-kDa polypeptide encoded in the 3'-terminal region of the virus. This protein is responsible for positive transcriptional trans-activation of promoter elements located within the BLV long-terminal repeat.
Chen, Gao, Willems, Lucas, Portetelle, Daniel, Burny, Arsène, Kettmann, Richard, Willard-Gallo, Karen, Gheysen, Dirk   +6 more
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Experimental Cross Transmissions of Bovine Leukaemia Virus (BLV) between Several Animal Species

Zentralblatt für Veterinärmedizin Reihe B, 1982
Summary Sheep and goats were inoculated with BLV positive blood from a cow donor and were observed over a long period (1969–1980). Comparison of the reactions of sheep and goats to experimental infection by BLV positive blood from a cow donor showed: 1. Both species were receptive to the virus; 2. Practically all BLV pos.
M, Mammerickx, D, Portetelle, A, Burny
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A Comparative Study of Bovine Leukemia Virus (BLV) Detection Methods

1985
Electron Microscopy (EM), Reverse Transcriptase test (RT), Concurrent Radioimmunoassay (cRIA) for major core protein p-24, and RNA dot-blot hybridization were used for quantitative BLV detection in culture fluids of BLV producing Foetal Lamb Kidney (FLK) cell lines and short term lymphocyte cultures.
U. T. Banders, J. A. Meldrajs, V. V. Konicheva, V. P. Lozha, R. A. Kukaine   +4 more
openaire   +1 more source

In vivo inhibition of bovine leukemia virus (BLV) expression.

Leukemia, 1989
Bovine leukemia virus-infected sheep were demonstrated to possess a plasma factor that specifically suppresses in vitro virus expression in lymphocyte cultures. This blocking activity is observed even after phytohemagglutinin (PHA) stimulation and is independent of cellular proliferation.
Schwartz-Cornil, Isabelle, Cornil, I, Levy, D.   +2 more
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Experimental infection of sheep with bovine leukemia virus (BLV).

Polskie archiwum weterynaryjne, 1992
Nine groups of sheep have been experimentally infected with different doses of BLV and by various routes. An immunological response of animals, as well as clinical symptoms of leukosis in the experimental sheep were investigated within several years or months.
M, Grundboeck, E, Buzała, M, Szczotka, J, Rułka   +3 more
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Detrimental effect of bovine leukemia virus (BLV) on the immunological state of cattle

Veterinary Immunology and Immunopathology, 1996
Bovine leukemia virus (BLV) is a retrovirus which seems to affect both the humoral and the cellular immune response. Cows affected by enzootic bovine leukemia (EBL) showed a reduction of IgM-producing cells in the spleen and lymph nodes. Experimentally infected calves had lower levels of secretory IgM and a decrease in T lymphocytes in the peripheral ...
Z, Trainin, J, Brenner, R, Meirom, H, Ungar-Waron   +3 more
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Glycoprotein and protein composition of bovine leukemia virus (BLV).

Neoplasma, 1981
Highly purified preparation of bovine leukemia virus (BLV) was obtained by the method described in this communication. BLV was isolated from cell-free culture medium, harvested from BLV-producing cell-line FLK. Polyacrylamide gel electrophoresis of BLV proteins and glycoproteins, in comparison with avian myeloblastosis virus (AMV), confirmed high ...
J, Prachar, K, Hlubinová
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Humoral and cellular responses in calves experimentally infected with Bovine Leukemia Virus (BLV)

Veterinary Immunology and Immunopathology, 1985
In order to elucidate whether infection by Bovine Leukemia Virus (BLV) might induce an immunodeficient state, we inoculated sixteen calves with BLV. The calves were followed up for two years and were tested for humoral and cellular responses using various parameters, namely the appearance of antibodies to the BLV antigens, the changes in the numbers of
R, Meiron, J, Brenner, A, Gluckman, R, Avraham, Z, Trainin   +4 more
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