PMID- 19513844 OWN - NLM STAT- MEDLINE DCOM- 20100402 LR - 20211020 IS - 1573-2568 (Electronic) IS - 0163-2116 (Linking) VI - 55 IP - 4 DP - 2010 Apr TI - Increased oxidative stress, decreased total antioxidant capacity, and iron overload in untreated patients with chronic hepatitis C. PG - 1120-7 LID - 10.1007/s10620-009-0833-1 [doi] AB - The aim of this study was to determine oxidative stress in patients with untreated chronic hepatitis C (CHC), relating the obtained results with iron status and disease activity markers. Two groups (CHC patients and controls) were studied. CHC patients presented significantly higher values than the control group in some parameters: ALT, AST, GGT, iron, ferritin, and transferrin saturation, and also in tert-butyl hydroperoxide initiate chemiluminescence and thiobarbituric acid-reactive substances (TBARS) as well as lower values in total radical-trapping antioxidant parameter (TRAP). TBARS showed a significant correlation with serum AST and with transferrin saturation, whereas TRAP correlated inversely with serum albumin. Serum ferritin correlated with ALT and GGT, whereas serum iron did so with GGT. In conclusion, lower antioxidant capacity, higher levels of pro-oxidants activity, and iron overload occur in untreated patients with CHC. This greater oxidative activity could play an important role in pathogenesis and evolution of hepatitis C and thus further investigations. FAU - Venturini, Danielle AU - Venturini D AD - Department of Pathology, Clinical Analysis and Toxicology, University of Londrina, Londrina, Parana, Brazil. FAU - Simao, Andrea Name Colado AU - Simao AN FAU - Barbosa, Decio Sabbatini AU - Barbosa DS FAU - Lavado, Edson Lopes AU - Lavado EL FAU - Narciso, Victor Emanuel Soares AU - Narciso VE FAU - Dichi, Isaias AU - Dichi I FAU - Dichi, Jane Bandeira AU - Dichi JB LA - eng PT - Journal Article DEP - 20090610 PL - United States TA - Dig Dis Sci JT - Digestive diseases and sciences JID - 7902782 RN - 0 (Antioxidants) RN - 0 (Free Radical Scavengers) RN - 0 (Serum Albumin) RN - 0 (Thiobarbituric Acid Reactive Substances) RN - 0 (Transferrin) RN - 9007-73-2 (Ferritins) RN - 955VYL842B (tert-Butylhydroperoxide) RN - E1UOL152H7 (Iron) RN - EC 2.3.2.2 (gamma-Glutamyltransferase) RN - EC 2.6.1.1 (Aspartate Aminotransferases) RN - EC 2.6.1.2 (Alanine Transaminase) SB - IM MH - Adult MH - Alanine Transaminase/blood MH - Antioxidants/*metabolism MH - Aspartate Aminotransferases/blood MH - Female MH - Ferritins/blood MH - Free Radical Scavengers/blood MH - Hepatitis C, Chronic/*blood MH - Humans MH - Iron/blood MH - Iron Overload/*blood MH - Luminescence MH - Male MH - Middle Aged MH - Oxidative Stress/*physiology MH - Serum Albumin/metabolism MH - Thiobarbituric Acid Reactive Substances/metabolism MH - Transferrin/metabolism MH - gamma-Glutamyltransferase/blood MH - tert-Butylhydroperoxide/blood EDAT- 2009/06/11 09:00 MHDA- 2010/04/03 06:00 CRDT- 2009/06/11 09:00 PHST- 2008/10/07 00:00 [received] PHST- 2009/04/30 00:00 [accepted] PHST- 2009/06/11 09:00 [entrez] PHST- 2009/06/11 09:00 [pubmed] PHST- 2010/04/03 06:00 [medline] AID - 10.1007/s10620-009-0833-1 [doi] PST - ppublish SO - Dig Dis Sci. 2010 Apr;55(4):1120-7. doi: 10.1007/s10620-009-0833-1. Epub 2009 Jun 10.