نتایج جستجو برای: bovine leukosis provirus
تعداد نتایج: 75443 فیلتر نتایج به سال:
Enzootic bovine leukosis (EBL) is a contagious lymphoproliferative disease whose etiological agent is a retrovirus, the bovine leukemia virus (BLV). EBL is a complex disease. So on after infection a strong humoral antibody response develops and persists for the animal 's entire life. Such BLV-infected cattle can remain asymptomatic virus carriers for many years. They can also at a given time de...
Ninety-three cattle from a herd naturally infected with bovine leukemia virus (BLV) were tested for the presence of BLV infection by two indirect indicators, anti-BLV antibodies and lymphocytosis, and two direct indicators, BLV provirus and BLV gp51 antigen expression in peripheral blood mononuclear cells (PBMC). Forty-eight percent (45/93) of the cattle were seropositive, and of these, 53% (24...
BACKGROUND Bovine leukemia virus (BLV) is associated with enzootic bovine leukosis (EBL), which is the most common neoplastic disease of cattle. BLV infection may remain clinically silent at the aleukemic (AL) stage, cause persistent lymphocytosis (PL), or, more rarely, B cell lymphoma. BLV has been identified in B cells, CD2+ T cells, CD3+ T cells, CD4+ T cells, CD8+ T cells, γ/δ T cells, mono...
Defective avian leukosis-based vectors expressing the bacterial lacZ gene were used as helper-free preparations to infect early stage Brown-Leghorn embryos. Both in toto X-gal staining and DNA analysis using Southern blot technique were applied to detect virus integration and expression. Our results demonstrate a low efficiency of in vitro infection in early stages of embryonic development. Sou...
The complete sequence of ART-CH, a recently found chicken retrotransposon (A. V. Gudkov, E. A. Komarova, M. A. Nikiforov, and T. E. Zaitsevskaya, J. Virol. 66:1726-1736, 1992), was characterized. ART-CH has the structure of a 3,300-bp-long provirus, including two 388-bp long terminal repeats (LTRs) (U3, 245 bp; R region, 17 bp; and U5, 126 bp), a tRNA(Trp)-binding site, and a polypurine tract, ...
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