نتایج جستجو برای: bhv 1
تعداد نتایج: 2752613 فیلتر نتایج به سال:
Bovine herpesvirus 1 (BHV-1) establishes a latent infection in sensory ganglionic neurons of cattle. During a latent infection, a single latency-related (LR) transcript is expressed. This observation suggested that DNA sequences in the LR promoter are positively regulated by neural cell type factors. The regulation of the LR gene was examined in neural cells as well as nonneural cells in transi...
Twelve Holstein bull calves (6 to 8 wk of age) were used to determine the influence of supplemental dietary Cr on ACTH, cortisol, and immune responses of calves experimentally inoculated with bovine herpesvirus-1 (BHV-1). Calves supplemented with Cr received 3 mg Cr/d (Chromium, n = 6) of a high-Cr-yeast product. Following 53 d of treatment, all calves were fitted with jugular catheters, and bl...
Various detection methods have been developed for serological monitoring BHV1, an alphaherpesvirus and the cause of the respiratory disease, abortion, conjectivitis and other clinical forms of disease complex in cattle, in different laboratories throughout the world. The objective of this study was to develop and evaluate dot-blot enzyme immunoassay as a proper and inexpensive method for detect...
The objective of this study was to determine the protein pattern and antigenic structure of BHV-1. Ten viral isolates from cows with clinical signs of respiratory infections were selected for this study and confirmed by SN test. All samples were cultured on cell cultures and purified by ultracentrifugation. Purified isolates were electerophorsed using SDS-PAGE method and immunoblotted. Vi...
The objective of this study was to estimate a herd-level seroprevalence of bovine herpesvirus type 1 (BHV-1) in herds with clinical symptoms of the respiratory tract. Eighty-three herds with suspected BHV-1 infection were selected and divided into two categories with respect to their size: small (n = 27) and large herds (n = 56). Samples were collected from calves, heifers and cows older than 2...
Bovine herpesvirus 1 (BHV-1) belongs to the Varicellovirus genus, Herpesviridae family and causes different respiratory, reproductive and nervous system disorders in cows, including infectious bovine rhinotracheitis (IBR). For determination of the genetic relationship of gB and gD – two of main BHV-1 glycoprotein genes in Iran with those in other countries, DNA fragments of 671 bp corresponding...
After ocular herpes simplex virus type 1 (HSV-1) infection, the virus travels up axons and establishes a lifelong latent infection in neurons of the trigeminal ganglia. LAT (latency-associated transcript), the only known viral gene abundantly transcribed during HSV-1 neuronal latency, is required for high levels of reactivation. The LAT function responsible for this reactivation phenotype is no...
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