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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1997-7-1
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pubmed:abstractText |
Detection and quantification of hepatitis C virus (HCV) RNA levels by using the standardized qualitative Amplicor HCV and quantitative Amplicor HCV Monitor assays (Roche Molecular Systems) were evaluated in 48 patients with chronic hepatitis C treated with interferon. Results were compared with an in-house reverse transcription and polymerase chain reaction (RT-PCR) assay and the branched DNA (bDNA) assay (Quantiplex, version 1.0, Chiron Diagnostics). Concordance of the qualitative results with the Amplicor HCV and in-house RT-PCR assays occurred in 82% of the samples. All but one of the discrepant specimens were found positive by the Amplicor HCV assay and negative by the in-house RT-PCR. Among the samples with HCV RNA levels measurable with the Amplicor HCV Monitor assay, 22% had HCV RNA titers below the detection limit of the Quantiplex assay. A statistically significant correlation was found between the 2 quantitative assays, although lower titers were obtained with the Amplicor HCV Monitor assay. More important, a good correlation was observed in the evolution of viremia as measured by the 2 assays during interferon therapy. During follow-up of interferon treatments, with the Amplicor HCV Monitor assay, persisting viremia was still detected in 27% of the patients who normalised alanine aminotransferase (ALT), emphasizing the bioclinical relevance of the assay. Pre-treatment serum HCV RNA levels above 10(5) copies/ml were found more frequently in nonresponders than in responders (76% vs. 44%; P < 0.05). Given their great sensitivity and the significant correlations, the Amplicor HCV qualitative and quantitative assays appear useful for the diagnosis and management of hepatitis C infection, and especially for monitoring of therapy.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0146-6615
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
52
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
105-12
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:9131466-Adult,
pubmed-meshheading:9131466-Aged,
pubmed-meshheading:9131466-Female,
pubmed-meshheading:9131466-Hepacivirus,
pubmed-meshheading:9131466-Hepatitis, Chronic,
pubmed-meshheading:9131466-Hepatitis C,
pubmed-meshheading:9131466-Humans,
pubmed-meshheading:9131466-Interferons,
pubmed-meshheading:9131466-Male,
pubmed-meshheading:9131466-Middle Aged,
pubmed-meshheading:9131466-Nucleic Acid Amplification Techniques,
pubmed-meshheading:9131466-Polymerase Chain Reaction,
pubmed-meshheading:9131466-RNA, Viral,
pubmed-meshheading:9131466-Sensitivity and Specificity,
pubmed-meshheading:9131466-Treatment Outcome,
pubmed-meshheading:9131466-Viral Load
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pubmed:year |
1997
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pubmed:articleTitle |
Comparison of HCV RNA assays for the detection and quantification of hepatitis C virus RNA levels in serum of patients with chronic hepatitis C treated with interferon.
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pubmed:affiliation |
Unité de recherche sur les Virus des hépatites, (INSERM U271), Lyon, France.
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pubmed:publicationType |
Journal Article,
Comparative Study
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