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Factors influencing...
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Grander, DKarolinska Institutet
(author)
Factors influencing the response to interferon therapy in chronic hepatitis C. Studies on viral genotype and induction of 2',5'-oligoadenylate synthetase in the liver and peripheral blood cells
- Article/chapterEnglish1996
Publisher, publication year, extent ...
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2009-07-08
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Informa UK Limited,1996
Numbers
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LIBRIS-ID:oai:lup.lub.lu.se:4bfe4b08-f7d3-472b-a46c-975b93271867
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https://lup.lub.lu.se/record/1109957URI
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https://doi.org/10.3109/00365529609009135DOI
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http://kipublications.ki.se/Default.aspx?queryparsed=id:1928261URI
Supplementary language notes
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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BACKGROUND: The mechanism behind the antiviral action of interferon (IFN) therapy in chronic hepatitis C virus (HCV) infection is not well understood, and, furthermore, few factors have been shown to be good predictors of a favourable response to IFN treatment in chronic HCV infection. METHODS: Freshly explanted liver cells and peripheral blood mononuclear cells (PBMC) from 80 patients with chronic HCV infection were used to study the capacity of IFN to induce the enzyme 2',5'-oligoadenylate synthetase (2'5'-AS) in vitro. The HCV genotype was determined in 53 patients. The induction of 2'5'-AS was correlated to the results of IFN-alpha treatment in 36 patients. RESULTS: Normalization of transaminases during IFN treatment was significantly associated with 2'5'-AS levels in liver cells cultured in the absence of IFN. A similar tendency, although not statistically significant, was found for IFN-induced levels of 2'5'-AS in liver cells. No such associations were found when PBMC were analysed. Six patients showed a sustained biochemical response. These six did not deviate significantly from the remaining patients with regard to base-line or IFN-induced levels of 2'5'-AS in liver cells or PBMC. Eradication of HCV RNA during IFN treatment did not correlate with 2'5'-AS levels in liver cells. Comparison of HCV genotype and clinical response showed that patients with genotype 3a had the most favourable outcome. No association was found between liver histology and treatment outcome. CONCLUSION: These data imply that direct effects of IFN on liver cells are of importance for the response to IFN treatment.
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Hultcrantz, RKarolinska Institutet
(author)
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Weiland, OKarolinska Institutet
(author)
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Xu, B
(author)
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Sangfelt, OKarolinska Institutet
(author)
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Bjorklund, A CKarolinska Institutet
(author)
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Befrits, RKarolinska Institutet
(author)
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Bjorkholm, MKarolinska Institutet
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Gruber, A
(author)
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Kinnman, N
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Reichard, O
(author)
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Widell, AndersLund University,Lunds universitet,Klinisk mikrobiologi, Malmö,Forskargrupper vid Lunds universitet,Clinical Microbiology, Malmö,Lund University Research Groups(Swepub:lu)mikr-awi
(author)
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Einhorn, S
(author)
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Karolinska InstitutetKlinisk mikrobiologi, Malmö
(creator_code:org_t)
Related titles
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In:Scandinavian Journal of Gastroenterology: Informa UK Limited31:6, s. 604-6111502-77080036-5521
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- By the author/editor
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Grander, D
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Hultcrantz, R
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Weiland, O
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Xu, B
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Sangfelt, O
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Bjorklund, A C
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Befrits, R
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Bjorkholm, M
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Gruber, A
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Kinnman, N
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Reichard, O
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Widell, Anders
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Einhorn, S
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- MEDICAL AND HEALTH SCIENCES
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MEDICAL AND HEAL ...
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and Gastroenterology ...
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Scandinavian Jou ...
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Lund University
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Karolinska Institutet