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Molecules 2011, 16(10), 8552-8568; doi:10.3390/molecules16108552

Beneficial Effects of THSG on Acetic Acid-Induced Experimental Colitis: Involvement of Upregulation of PPAR-γ and Inhibition of the Nf-Κb Inflammatory Pathway

Department of Pharmacology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
Author to whom correspondence should be addressed.
Received: 8 August 2011 / Revised: 3 October 2011 / Accepted: 3 October 2011 / Published: 12 October 2011
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The polyphenolic compound 2,3,5,4′-tetrahydroxystilbene-2-O-beta-D-glucoside (THSG) has been shown to possess anti-inflammatory effects. Here, we examined the effects of THSG on experimental mice with colitis induced by acetic acid and whether the underlying mechanisms were associated with the PPAR-γ and NF-κB pathways. Mice were randomized into six equal groups: normal, colitis model, THSG (10, 30, 60 mg·kg−1) and mesalazine. The mice were administered 10, 30, 60 mg·kg−1 THSG or 100 mg·kg−1 mesalazine or saline once daily by intragastric administration for 7 days after induction of colitis by acetic acid irrigation. THSG dramatically attenuated acetic acid-induced colon lesions, including reversing the body weight loss and improving histopathological changes. THSG apparently decreased the increase of malondialdehyde (MDA) which is a marker of lipid peroxidation. THSG appears to exert its beneficial effects on acetic acid-induced experimental colitis through upregulation of PPAR-γ mRNA and protein levels and inhibition of the NF-κB pathway, which in turn decreases the protein overexpression of the downstream inflammatory mediators TNF-α, IL-6 and COX-2. The effect of THSG 60 mg·kg−1 on PPAR-γ mRNA expression was higher than that of mesalazine. THSG may thus be a promising new candidate or lead compound for the treatment of IBD.
Keywords: 2,3,5,4’-tetrahydroxystilbene-2-O-beta-D-glucoside; colitis; PPAR-γ; NF-κB 2,3,5,4’-tetrahydroxystilbene-2-O-beta-D-glucoside; colitis; PPAR-γ; NF-κB
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Zeng, C.; Xiao, J.-H.; Chang, M.-J.; Wang, J.-L. Beneficial Effects of THSG on Acetic Acid-Induced Experimental Colitis: Involvement of Upregulation of PPAR-γ and Inhibition of the Nf-Κb Inflammatory Pathway. Molecules 2011, 16, 8552-8568.

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