Chen O, Li CP, Luo B, Feng Q, Ma CH, Feng KX. Efficacy of curcumin in the management of dextan sulphate sodium-induced ulcerative colitis in mice.
Shijie Huaren Xiaohua Zazhi 2011;
19:680-686. [DOI:
10.11569/wcjd.v19.i7.680]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the efficacy of curcumin in the treatment of dextran sulphate sodium (DSS)-induced ulcerative colitis in mice.
METHODS: Sixty female BALB/c mice were randomly divided into four groups: normal group, experimental colitis group (administered with 5% DSS solution), curcumin treatment group (administered with 5% DSS solution and intraperitoneally injected with curcumin, 30 mg/kg body weight), dexamethasone treatment group (administered with 5% DSS solution and intraperitoneally injected with dexamethasone, 0.4 mg/kg body weight). The severity of colitis was evaluated using the disease activity index (DAI) score, and colonic mucosal histological changes were observed by HE staining. Tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) levels in colonic tissue were determined by ELISA. The expression of nuclear factor-κB (NF-κB) in intestinal inflammatory cells was determined by immunohistochemistry. The expression of inhibitor of NF-κB (IκB) in intestinal inflammatory cells was determined by Western blot.
RESULTS: Compared with the normal group and experimental colitis group, treatment with curcumin significantly improved symptoms, reduced colonic DAI and histological scores (DAI: 1.64 ± 0.92, 2.80 ± 0.92 vs 7.67 ± 1.56; histological scores: 1.36 ± 0.50, 2.00 ± 0.67 vs 2.83 ± 0.83, all P < 0.01), and decreased the levels of colonic TNF-α and IL-6 (TNF-α: 102.75 ± 3.52 vs 75.91 ± 1.59, 78.25 ± 2.15; IL-6: 80.94 ± 3.26 vs 59.65 ± 1.39, 65.57 ± 4.04, all P < 0.01). Curcumin decreased the expression of NF-κB (2.73 ± 0.79, 4.22 ± 1.09 vs 7.92 ± 1.24, both P < 0.01) and degradation of IκBα more significantly than dexamethasone.
CONCLUSION: Curcumin has a positive effect in treating DSS-induced colitis in mice. The therapeutic effect of curcumin is superior to dexamethasone. Curcumin reduces colonic inflammation by decreasing the expression of NF-κB and modulating the release of cytokines.
Collapse