Roberta Maria Fachini

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The radioimmunoprecipitation assay (RIPA) has been used as a confirmatory test in several ongoing and published studies of Trypanosoma cruzi in blood donors in the United States. Despite its use as a confirmatory test, few studies are available comparing RIPA to commercially available serologic test methods. Thus, we compared RIPA with two indirect(More)
During the course of routine genotyping of hepatitis C virus isolates by 5' noncoding region sequencing, three samples were found to bear genotype 5-specific nucleotides. A serotyping method was subsequently applied and confirmed the finding. This is the first report of the occurrence of genotype 5 in Brazil.
The aim of this study was to investigate the presence of the Hepatitis G Virus on a population of blood donors from S o Paulo, Brazil and to evaluate its association to sociodemographic variables. Two RT-PCR systems targeting the putative 5'NCR and NS3 regions were employed and the former has shown a higher sensitivity. The observed prevalence of HGV-RNA on(More)
BACKGROUND AND OBJECTIVES The purpose of this article was to describe the experience of screening for human immunodeficiency virus (HIV) p24 antigen (p24Ag) in blood donors, in four Brazilian Blood Banks, and to report the detection of the first window-period donation. MATERIALS AND METHODS During 61 months (May 96 to June 01), 103 470 consecutive(More)
BACKGROUND The quasispecies composition of Hepatitis C virus (HCV) could have important implications with regard to viral persistence and response to interferon-based therapy. The complete NS5A was analyzed to evaluate whether the composition of NS5A quasispecies of HCV 1a/1b is related to responsiveness to combined interferon pegylated (PEG-IFN) and(More)
Drugs with antihistamine action are the most commonly prescribed medication in daily dermatologic practice, both to adults and children. This article addresses new concepts of the role of histamine receptors (H1 receptors) and discusses the anti-inflammatory effects of these drugs. Second generation antihistamines differs from first generation because of(More)
DOI: 10.5581/1516-8484.20130042 Even though the anti-LW antibody has little clinical importance, the present report aims at demonstrating that one must be careful about its possible identification. The weak anti-LW may be confused with anti-D autoor allo-antibodies and differentiating them is important particularly in women during the fertile period, and in(More)
Ana CG Jardim ( Cíntia Bittar ( Renata PA Matos ( Lílian HT Yamasaki ( Rafael A Silva ( João RR Pinho ( Roberta M Fachini ( Cláudia MA Carareto ( Isabel MVG de Carvalho-Mello(More)
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