We compared four tests for antibodies to CagA or VacA, HelicoBlot 2. 0, RIDA Blot Helicobacter, CHIRON RIBA H. pylori SIA, and an enzyme-linked immunosorbent assay using recombinant CagA. Immunoblot assays were accurate for determining Helicobacter pylori status but poor for determining CagA or VacA status (accuracy, 66 to 80% for CagA status and 34 to 67% for VacA status). None can be recommen...

BACKGROUND: Chemiluminescence immunoassay (CIA) is used to detect hepatitis C virus (HCV) antibody status on the basis of signal-to-cutoff (S/Co) ratios. Positive results of antibody to HCV (anti-HCV) are followed by either recombinant immunoblot assay (RIBA) to confirm anti-HCV positivity or reverse transcription (RT)-PCR to detect viremia. We hypothesized that by analyzing S/Co ratios, we cou...

im A. Eagle, MD, FACC,* Cecelia K. Montoye, MSN,*† Arthur L. Riba, MD, FACC,‡ nthony C. DeFranco, MD, FACC,§ Robert Parrish, MM,¶# Stephen Skorcz, MPH,** atricia L. Baker, MS,†† Jessica Faul, MPH,††‡‡ Sandeep M. Jani, MPH,* Benrong Chen, PHD,†† anopy Roychoudhury, PHD,†† Mary Anne C. Elma, BA,§§ Kristi R. Mitchell, MPH,§§ ajendra H. Mehta, MD, MS, FACC* nn Arbor, Dearborn, West Bloomfield, Flin...

since the start of modern banking in islamic countries, some scholars have tried to provide a certain interpretation of riba prohibition in islam which does not cover the interest-based banking system. hence, it is completely possible to use conventional banking in islamic countries. on the other hand, some others have tried to come up with a more comprehensive understanding of riba and critici...

Allan M. Ross, MD, FACC,* Karin S. Coyne, PHD, RN, MPH,* Jonathan S. Reiner, MD, FACC,* Samuel W. Greenhouse, PHD,† Cynthia Fink, MPH,* Anthony Frey, MD,* Eduardo Moreyra, MD, FACC,* Mouhieddin Traboulsi, MD, FACC,‡ Normand Racine, MD,§ Arthur L. Riba, MD, FACC,\ Mark A. Thompson, MD, FACC,¶ Steven Rohrbeck, MD, FACC,# Conor F. Lundergan, MD,* for the PACT Investigators Washington, DC; Calgary,...

Background and Aims: HIV is spreading rapidly among people word wide. Infection with this virus leads to immune suppression and finally acquired immune deficiency syndrome (AIDS).Early HIV detection is depended on antibody screening against virus by Enzyme Linked Immunosorbent Assay (ELISA).Some confirmatory tests such as Western Blot and Recombinant Immunobloting Assay (RIBA), are used to ve...

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