PMID- 21708140 OWN - NLM STAT- MEDLINE DCOM- 20111003 LR - 20220318 IS - 1872-7786 (Electronic) IS - 0009-2797 (Linking) VI - 193 IP - 2 DP - 2011 Sep 5 TI - Effect of galangin supplementation on oxidative damage and inflammatory changes in fructose-fed rat liver. PG - 141-8 LID - 10.1016/j.cbi.2011.06.003 [doi] AB - The study examined the effects of galangin (GA) on oxidative stress, inflammatory cytokine levels and nuclear factor-kappa B (NF-kappaB) activation in fructose-fed rat liver. Adult male albino Wistar rats were divided into 4 groups. Groups 1 and 4 received the control diet containing starch as the source of carbohydrate while groups 2 and 3 were fed a diet containing fructose. Groups 3 and 4 additionally received GA (100mug/kg, p.o) from the 15th day. At the end of 60 days, the levels of plasma glucose, insulin and triglycerides, insulin sensitivity indices and oxidative stress markers in the liver were determined. Cytokines of interest were assayed by ELISA and RT-PCR and NF-kappaB p65 nuclear translocation by Western blot and RT-PCR. Compared to control diet-fed animals, fructose-fed animals developed hyperglycemia, hyperinsulinemia, hypertriglyceridemia and insulin resistance (IR) (all p<0.01). GA prevented the rise in plasma glucose, insulin and triglycerides and improved insulin sensitivity. Tumor necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6) levels in plasma and the mRNA and protein levels of TNF-alpha and transforming growth factor-beta1(TGF-beta(1)) in liver were significantly higher in fructose-fed rats than control rats. However, treatment with GA downregulated the expression of these cytokines. Translocation of NF-kappaB into the nucleus was also increased in fructose diet-fed animals, which was prevented by GA. These results suggest that GA prevents oxidative damage and has a downregulatory effect on the inflammatory pathway in liver of fructose-fed rats. CI - Copyright (c) 2011 Elsevier Ireland Ltd. All rights reserved. FAU - Sivakumar, Allur Subramaniyan AU - Sivakumar AS AD - Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Tamil Nadu, India. FAU - Anuradha, Carani Venkatraman AU - Anuradha CV LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20110625 PL - Ireland TA - Chem Biol Interact JT - Chemico-biological interactions JID - 0227276 RN - 0 (Antioxidants) RN - 0 (Blood Glucose) RN - 0 (Dietary Carbohydrates) RN - 0 (Flavonoids) RN - 0 (Free Radical Scavengers) RN - 0 (Insulin) RN - 0 (Interleukin-6) RN - 0 (Lipid Peroxides) RN - 0 (Transcription Factor RelA) RN - 0 (Transforming Growth Factor beta1) RN - 0 (Triglycerides) RN - 0 (Tumor Necrosis Factor-alpha) RN - 142FWE6ECS (galangin) RN - 30237-26-4 (Fructose) RN - 9007-34-5 (Collagen) SB - IM MH - Animals MH - Antioxidants/metabolism MH - Blood Glucose/drug effects/metabolism MH - Body Weight/drug effects MH - Cell Nucleus/metabolism MH - Chemical and Drug Induced Liver Injury/blood/metabolism/pathology/*prevention & control MH - Collagen/metabolism MH - Cytosol/metabolism MH - Dietary Carbohydrates/administration & dosage/*pharmacology MH - *Dietary Supplements MH - Flavonoids/administration & dosage/*pharmacology/therapeutic use MH - Free Radical Scavengers/administration & dosage/pharmacology MH - Fructose/administration & dosage/*pharmacology MH - Gene Expression/drug effects/genetics MH - Insulin/blood MH - Insulin Resistance/physiology MH - Interleukin-6/blood MH - Lipid Peroxides/blood MH - Liver/*drug effects/metabolism/pathology MH - Male MH - Oxidative Stress/*drug effects MH - Protein Carbonylation/drug effects MH - Rats MH - Rats, Wistar MH - Transcription Factor RelA/genetics/metabolism MH - Transforming Growth Factor beta1/genetics MH - Triglycerides/blood MH - Tumor Necrosis Factor-alpha/blood/genetics EDAT- 2011/06/29 06:00 MHDA- 2011/10/04 06:00 CRDT- 2011/06/29 06:00 PHST- 2011/04/15 00:00 [received] PHST- 2011/05/27 00:00 [revised] PHST- 2011/06/07 00:00 [accepted] PHST- 2011/06/29 06:00 [entrez] PHST- 2011/06/29 06:00 [pubmed] PHST- 2011/10/04 06:00 [medline] AID - S0009-2797(11)00223-7 [pii] AID - 10.1016/j.cbi.2011.06.003 [doi] PST - ppublish SO - Chem Biol Interact. 2011 Sep 5;193(2):141-8. doi: 10.1016/j.cbi.2011.06.003. Epub 2011 Jun 25.