Pcr Hcv
Mostrando 13-24 de 291 artigos, teses e dissertações.
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13. Toll-like receptor 3 gene polymorphisms are not associated with the risk of hepatitis B and hepatitis C virus infection
INTRODUCTION: The present study investigated the prevalence of two single-nucleotide polymorphisms (SNPs) in the Toll-like receptor 3 (TLR3) gene in patients infected with hepatitis B virus (HBV) and hepatitis C virus (HCV). METHODS: Samples collected from HCV (n = 74) and HBV (n = 35) carriers were subjected to quantitative real-time PCR (qPCR) to detect t
Rev. Soc. Bras. Med. Trop.. Publicado em: 2015-04
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14. Infecção pelo HCV através de materiais cortantes e perfurantes entre candidatos à doação de sangue em Belém, Amazônia Brasileira
Este estudo avaliou fatores epidemiológicos para infecção pelo HCV associados ao compartilhamento de instrumentos cortantes e perfurantes em candidatos à doação de sangue (CDS) na cidade de Belém, Pará, Amazônia Brasileira. Duas definições de infecção pelo HCV foram utilizadas: positividade por anti-HCV detectada por EIA, e HCV-RNA detectado por
Rev. Inst. Med. trop. S. Paulo. Publicado em: 2014-12
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15. Association between age at diagnosis and degree of liver injury in hepatitis C
Introduction: A population-based survey conducted in Brazilian capital cities found that only 16% of the population had ever been tested for hepatitis C. These data suggest that much of the Brazilian population with HCV infection remains undiagnosed. The distribution of age ranges at diagnosis and its association with the degree of hepatitis C are still unk
Braz J Infect Dis. Publicado em: 2014-09
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16. Prevalence, risk factors and genotypes of hepatitis B infection among HIV-infected patients in the State of MS, Central Brazil
Objectives: A cross-sectional study on prevalence of HBV and HDV infection, risk factors and genotype distribution of HBV infection was conducted among 848 HIV-infected patients in Mato Grosso do Sul, Central Brazil. Methods: Serum samples of 848 participants were tested for hepatitis B surface antigen (HBsAg), hepatitis B core antibody (anti-HBc) and hep
Braz J Infect Dis. Publicado em: 2014-09
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17. A complete molecular biology assay for hepatitis C virus detection, quantification and genotyping
Introduction Molecular biology procedures to detect, genotype and quantify hepatitis C virus (HCV) RNA in clinical samples have been extensively described. Routine commercial methods for each specific purpose (detection, quantification and genotyping) are also available, all of which are typically based on polymerase chain reaction (PCR) targeting the HCV 5
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-06
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18. Do differences exist between chronic hepatitis C genotypes 2 and 3?
Introduction Six genotypes of the hepatitis C virus (HCV) have been identified thus far, and their distribution is well defined. Genotype 1, which is the most prevalent worldwide, is always compared to genotypes 2 and 3, particularly in terms of treatment response. However, little is known about the differences between genotypes 2 and 3 because these genoty
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-04
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19. Indeterminate RIBA results were associated with the absence of hepatitis C virus RNA (HCV-RNA) in blood donors
Introduction: Hepatitis C virus (HCV) infection is diagnosed by the presence of antibodies and is supplemented by confirmatory testing methods, such as recombinant immunoblot assay (RIBA) and HCV-RNA detection. This study aimed to evaluate the efficacy of RIBA testing to diagnose HCV infection in blood donors positive for anti-HCV antibodies. Methods: A t
Rev. Soc. Bras. Med. Trop.. Publicado em: 2014-01
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20. Characteristics of co-infections by HCV and HBV among Brazilian patients infected by HIV-1 and/or HTLV-1
BACKGROUND: The human retroviruses HIV-1 and HTLV-1 share the routes of infection with hepatitis viruses B and C. Co-infection by these agents are a common event, but we have scarce knowledge on co-infection by two or more of these agents. OBJECTIVE: To evaluate the characteristics and risk factors for co-infections by HBV and HCV in patients infected by HIV
Braz J Infect Dis. Publicado em: 2013-12
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21. In vitro detection of hepatitis C virus in platelets from uninfected individuals exposed to the virus
IntroductionDespite hepatocytes being the target cells of hepatitis C virus (HCV), viral ribonucleic acid RNA has been detected in other cells, including platelets, which have been described as carriers of the virus in the circulation of infected patients. Platelets do not express cluster differentiation 81 CD81, the main receptor for the virus in hepatocyte
Rev. Soc. Bras. Med. Trop.. Publicado em: 02/04/2013
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22. Response to treatment in Brazilian patients with chronic hepatitis C is associated with a single-nucleotide polymorphism near the interleukin-28B gene
A single-nucleotide polymorphism (SNP) upstream of interleukin (IL)28B was recently identified as an important predictor of the outcome of chronic hepatitis C patients treated with pegylated interferon plus ribavirin (PEG-IFN/RBV). The aim of this study was to investigate the association between the IL28B gene polymorphism (rs12979860) and virological respon
Mem. Inst. Oswaldo Cruz. Publicado em: 2013-02
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23. C4d e PCR do VHC em tecido no diagnóstico diferencial entre rejeição e recidiva de hepatite C em pacientes transplantados de fígado / Characterization of C4d deposits and tissue HCV PCR in the differential diagnosis between rejection and hepatitis C recurrence after liver transplantation
INTRODUÇÃO: Doença hepática avançada causada pelo vírus da hepatite C (VHC) é a principal causa de indicação de transplante de fígado. No entanto, mais da metade dos casos apresenta recidiva histológica em até um ano. A biópsia hepática tem importante papel no diagnóstico da recidiva e na orientação do manejo, porém o diagnóstico diferenci
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/03/2012
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24. Soroprevalência e taxa de coinfecção do HTLV-1/2 em doadores de sangue de primeira vez brasileiros: 11 anos de estudo
A soroprevalência e a distribuição geográfica do HTLV-1/2 entre os doadores de sangue são extremamente importantes para os serviços de transfusão. Neste trabalho, foi determinada a soroprevalência da infecção pelo HTLV-1/2 entre os doadores de sangue de primeira vez da cidade de Ribeirão Preto e região. No período de Janeiro de 2000 a Dezembro d
Revista do Instituto de Medicina Tropical de São Paulo. Publicado em: 2012-06