نتایج جستجو برای: riba
تعداد نتایج: 559 فیلتر نتایج به سال:
مقدمه: شیوع ویروس نقص ایمنی انسانی (hiv)به سرعت در دنیا در حال گسترش است. آلودگی با این ویروس منجر به مهار سیستم ایمنی و نهایتا سیندرم نقص ایمنی اکتسابی می شود. تشخیص اولیه ی بیماری با شناسایی آنتی بادی علیه ویروس به روش الایزا (elisa)انجام می شود. برخی تست های تکمیلی بعنوان مثال وسترن بلات و آزمون ایمنوبلاتینگ نوترکیب (riba) برای تایید عفونت ویروسی مورد استفاده قرار می گیرد. بسیاری از نتایج تس...
BACKGROUND Tests for hepatitis C antibodies (anti-HCV enzyme immunoassays) are usually described as positive or negative. Several studies, mainly in blood donors, have found that specimens with low signal/cutoff (S/C) ratios are commonly negative when tested with a recombinant immunoblot assay (RIBA) or for HCV RNA. METHODS We retrospectively reviewed 17 418 consecutive anti-HCV results from ...
BACKGROUND A total of 738 volunteer blood donors who were positive for anti-hepatitis C virus (HCV) were assessed for risk factors and outcomes for up to 15 years within the study and up to 54 years from the estimated onset of infection. METHODS A third-generation recombinant immunoblot assay (RIBA) was performed to distinguish true from false anti-HCV reactivity. Findings of HCV polymerase c...
BACKGROUND Anti-hepatitis C virus antibody (anti-HCV) assays are recommended for screening HCV-infected persons. The VIDAS Anti-HCV Assay (bioMérieux, France), based on the enzyme-linked fluorescence test principle, was recently introduced in Korea. We evaluated the clinical performance of the VIDAS assay. METHODS One hundred HCV-positive and 1,002 HCV-negative blood samples confirmed by Arch...
We reviewed results from 12,800 samples tested for hepatitis C virus (HCV) antibody detection in our laboratory by screening (Ortho chemiluminescence immunoassay [CIA]) and supplemental tests (Chiron recombinant immunoblot assay [RIBA]). We found that a signal-to-cutoff (S/Co) ratio of 10.3 was, in our setting, the most efficient cutoff point to improve the diagnostic algorithm of HCV infection.
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