PMID- 12949432 OWN - NLM STAT- MEDLINE DCOM- 20040211 LR - 20181130 IS - 0012-2823 (Print) IS - 0012-2823 (Linking) VI - 68 IP - 1 DP - 2003 TI - Response to combination therapy with interferon alfa-2a and ribavirin in chronic hepatitis C according to a TNF-alpha promoter polymorphism. PG - 1-4 AB - BACKGROUND: Tumor necrosis factor-alpha (TNF-alpha) is involved in the pathogenesis of chronic active hepatitis C. Polymorphisms in the promoter region of the TNF-alpha gene can alter the TNF-alpha expression and modify the host immune response. The present study aimed at the correlation of the G308A TNF-alpha polymorphism with the response to antiviral combination therapy in chronic hepatitis C. PATIENTS AND METHODS: 62 patients with HCV and 119 healthy unrelated controls were genotyped for the G308A TNF-alpha promoter polymorphism. The patients received 3 x 3 million units of interferon alfa-2a and 1,000-1,200 mg ribavirin daily according to their body weight. A response was defined as absence of HCV-RNA and normalization of S-ALT after 6 months of combination therapy. RESULTS: With respect to the allele and genotype frequency, a significant difference was not observed between controls and patients with chronic hepatitis C. Furthermore, such a difference was also not observed if responders and non-responders to antiviral therapy were compared. CONCLUSIONS: The promoter polymorphism of the TNF-alpha gene investigated herein is equally distributed in healthy individuals and patients with hepatitis C and does not seem to predict the response to therapy with interferon alfa-2a and ribavirin. CI - Copyright 2003 S. Karger AG, Basel FAU - Schiemann, U AU - Schiemann U AD - Medizinische Klinik, Klinikum der Universitat, Innenstadt, Ludwig-Maximilians-Universitat Munchen, Munchen, Deutschland. usciema@helios.med.uni-muenchen.de FAU - Glas, J AU - Glas J FAU - Torok, P AU - Torok P FAU - Simperl, C AU - Simperl C FAU - Martin, K AU - Martin K FAU - Konig, A AU - Konig A FAU - Schmidt, F AU - Schmidt F FAU - Schaefer, M AU - Schaefer M FAU - Folwaczny, C AU - Folwaczny C LA - eng PT - Journal Article DEP - 20030829 PL - Switzerland TA - Digestion JT - Digestion JID - 0150472 RN - 0 (Antiviral Agents) RN - 0 (Interferon alpha-2) RN - 0 (Interferon-alpha) RN - 0 (Recombinant Proteins) RN - 0 (Tumor Necrosis Factor-alpha) RN - 49717AWG6K (Ribavirin) SB - IM MH - Adult MH - Alleles MH - Antiviral Agents/*therapeutic use MH - Case-Control Studies MH - Drug Therapy, Combination MH - Female MH - Genotype MH - Hepatitis C, Chronic/*drug therapy MH - Humans MH - Interferon alpha-2 MH - Interferon-alpha/*therapeutic use MH - Male MH - Polymorphism, Genetic MH - *Promoter Regions, Genetic MH - Recombinant Proteins MH - Ribavirin/*therapeutic use MH - Tumor Necrosis Factor-alpha/*genetics EDAT- 2003/09/02 05:00 MHDA- 2004/02/12 05:00 CRDT- 2003/09/02 05:00 PHST- 2003/02/28 00:00 [received] PHST- 2003/05/22 00:00 [accepted] PHST- 2003/09/02 05:00 [pubmed] PHST- 2004/02/12 05:00 [medline] PHST- 2003/09/02 05:00 [entrez] AID - 73218 [pii] AID - 10.1159/000073218 [doi] PST - ppublish SO - Digestion. 2003;68(1):1-4. doi: 10.1159/000073218. Epub 2003 Aug 29.