نتایج جستجو برای: linked immunosorbet assay
تعداد نتایج: 428002 فیلتر نتایج به سال:
The Merck pneumococcal (Pn) enzyme-linked immunosorbent assays (ELISAs) for measuring antibodies to 12 serotypes (serotypes 1, 3, 4, 6B, 7F, 8, 9V, 12F, 14, 18C, 19F, and 23F) were validated in 1999. Merck Laboratories developed the Pn assays using 10 microg/ml C polysaccharide, 100 microg/ml Pn polysaccharide (PnPs) 25, and 100 microg/ml PnPs 72 for preadsorption of samples, standards, and con...
The microneutralization assay is commonly used to detect antibodies to influenza virus, and multiple protocols are used worldwide. These protocols differ in the incubation time of the assay as well as in the order of specific steps, and even within protocols there are often further adjustments in individual laboratories. The impact these protocol variations have on influenza serology data is un...
The first outbreaks of viral haemorrhagic disease (VHD) of rabbits were reported from eastern Slovakia in 1987. In 1988, the infection spread throughout the Czech and Slovak Federal Republic. Electron microscopy was used by the Veterinary Research Institute in Brno to diagnose the disease during the early stage of infection. At present, the regional laboratories of the veterinary investigation ...
ویروس تریستزای مرکبات( citrus tristeza virus ctv) مهمترین بیمارگر مرکبات می باشد و خسارت هنگفتی به صنعت تولید این محصول در دنیا وارد می کند. به دلیل گسترش و شیوع ctv در ایران، مدیریت کنترل آن اهمیت بسزایی یافته است. از این رو تشخیص به موقع، دقیق و ارزان بیماری نیاز به بکارگیری روشی مناسب دارد. امروزه روش( enzyme linked immunosorbant assay elisa) روشی معمول، معتبر و ارزان برای تشخیص ویروس در سطو...
Although licensed batches of an enzyme-linked immunosorbent assay (ELISA) for Aujeszky's disease virus (ADV) were used, and the assays were performed within an ISO/IEC 17025 accredited quality control system, certain routine runs of the ADV ELISA were not validated using the quality system criteria, even when all technical parameters were controlled. Incubation at different temperatures and bat...
Reference standards are used to calibrate similar assay systems against an international reference protocol and to provide a template for the preparation of secondary and/or working standards. Three reference standards are recommended for the indirect enzyme-linked immunosorbent assay: a strong positive standard, a weak positive standard and a negative serum standard. The negative standard shou...
Methods. Explants prepared from 21-day-old rats were cultured with TGF/?2 with and without 50% bovine aqueous or vitreous or a2-macroglobulin. a2-macroglobulin was added to an aqueous concentrate, shown to contain endogenous TGF/3 activity by blocking with antiTGF/J. Explants were monitored by phase-contrast microscopy for 5 days and assessed in terms of capsule wrinkling, spindle-cell formatio...
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