نتایج جستجو برای: cytopathic effect cpe
تعداد نتایج: 1644232 فیلتر نتایج به سال:
Submit Manuscript | http://medcraveonline.com Abbreviations: ACE: Alternative Cellular Energy; HIV: Human Immunodeficiency Virus; HSV: Herpes Simplex Virus; HZV: Herpes Zoster Virus; HPV: Human Papillomaviruses; KELEA: Kinetic Energy Limiting Electrostatic Attraction; SCMV: African Green Monkey Simian Cytomegalovirus; CPE: Cytopathic Effect; CTL: Cytotoxic T Lymphocytes; CAM: Complementary and ...
A dengue nonstructural protein 1 (NS1) antigen capture enzyme-linked immunosorbent assay (ELISA)-based tissue culture infectious dose-50 (TCID(50)) test (TCID(50)-ELISA) was developed as an alternative to the standard plaque assay for titrating dengue virus. Virus titers obtained by TCID(50)-ELISA were comparable to those obtained by the plaque assay and by the traditional TCID(50)-cytopathic e...
Rabbit pox virus (RPV) produced cytopathic effect (CPE) in five types of cells grown in tissue cultures. The CPE on CV-1 cells was characterized by cell fusion and lysis. The CV-1 line is a useful and sensitive cell culture for measuring concentrations of RPV in blood and tissues of infected rabbits. Viremia was detected between the 2nd and 4th days after parenteral infection. By the 6th and 7t...
Six cell lines routinely used in laboratories were tested for permissiveness to the infection with the newly identified human coronavirus NL63. Two monkey epithelial cell lines, LLC-MK2 and Vero-B4, showed a cytopathic effect (CPE) and clear viral replication, whereas no CPE or replication was observed in human lung fibroblasts MRC-5s. In Rhabdomyosarcoma cells, Madin-Darby-Canine-kidney cells ...
Replication of alphaviruses in vertebrate cells strongly affects cell physiology and ultimately leads to development of a cytopathic effect (CPE) and cell death. Sindbis virus (SIN) replication causes major changes in cellular macromolecular synthesis, in which the strong downregulation of transcription of cellular mRNAs and rRNAs plays a critical role. SIN nonstructural protein nsP2 was previo...
During two winter seasons, we found that the combination of WI-38 or MRC-5 human lung fibroblasts plus primary rhesus monkey kidney (RhMK) and HEp-2 cell cultures yielded maximal isolation of respiratory syncytial virus. Cytopathic effects (CPE) developed earliest in RhMK cells and slowest in the human fibroblast lines. In RhMK cells, 50% of ultimately positive cultures showed CPE in 5 days, an...
A novel electronic cell sensor array technology, the real-time cell analysis (RTCA) system, was developed to monitor cell events. Unlike the conventional methods labeling the target cells with fluorescence, luminescence, or light absorption, the RTCA system allows for label-free detection of cell processes directly without the incorporation of labels. Here, we used this new format to measure th...
150 specimens from suspected herpes simplex genital and skin lesions were received in virus transport medium. They were inoculated into Hep-2 cell monolayers, examined for the presence of virus by cytopathic effect (CPE), direct immunoperoxidase (DIP) and direct immunofluorescence (DIF). Of 39 (26.0%) virus-positive specimens by CPE, 37 (24.7%) were HSV-positive by DIP and 36 (24.0%) by DIF sta...
Acanthamoeba keratitis is a vision-threatening infection caused by pathogenic species of the genus Acanthamoeba. Although not all Acanthamoeba spp. can cause keratitis, it is important to differentiate pathogenic species and isolates from nonpathogens. Since extracellular proteases may play a role in ocular pathology, we used colorimetric, cytopathic, and zymographic assays to assess extracellu...
Venezuelan equine encephalitis (VEE) and eastern equine encephalitis (EEE) viruses are important, naturally emerging zoonotic viruses. They are significant human and equine pathogens which still pose a serious public health threat. Both VEE and EEE cause chronic infection in mosquitoes and persistent or chronic infection in mosquito-derived cell lines. In contrast, vertebrate hosts infected wit...
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