Abstract Title:

[Paeoniflorin increases beta-defensin expression and attenuates lesion in the colonic mucosa from mice with oxazolone-induced colitis].

Abstract Source:

Yao Xue Xue Bao. 2010 Jan ;45(1):37-42. PMID: 21351447

Abstract Author(s):

Yi Zhou, He Wang, Yue-Shan Li, Yi-Wen Tao, Jian-Ye Zhang, Zhi-Qiang Zhang

Article Affiliation:

Yi Zhou


Previous studies have demonstrated that the Chinese medicine paeoniflorin, derived from the Ranunculaceae plant peony, peony, purple peony root, was able to have anti-inflammatory, anti-ulcer, anti-hypersusceptibility and anti-oxidation activity. In order to elucidate the pesticide effect and the mechanisms by which paeoniflorin exerts its effect of anti-inflammation and immunoregulation on oxazolone-induced colitic mice, disease activity index (DAI) and histological grading of colitis (HGC) were evaluated in animal model. Moreover, the expressions of HBD-2, IL-6 and IL-10 of mice with experimental colitis were observed with immunohistochemistry and RT-PCR in this study. Results showed that DAI and HGC of oxazolone control group was significantly higher than that of normal control group, and that paeoniflorin groups and 5-ASA group, compared with oxazolone control group, could alleviate the symptoms and histological damages of colitic mice (P<0.05, P<0.01). The expression of HBD-2 and IL-6 cytokine on the colon of colitic mice was higher than that of normal control, paeoniflorin and 5-ASA groups (P<0.05, P<0.01), but the expression of IL-10 is lower than that of normal control, paeoniflorin and 5-ASA groups (P<0.05, P<0.01). The positive correlations were demonstrated between the expression of (HBD-2 and IL-6) and DAI (Pearson r = 0.728, Pearson r = 0.758, P<0.01, respectively), (HBD-2 and IL-6) and HGC (Pearson r = 0.819, Pearson r = 0.825, P<0.01, respectively), whereas, the negative correlations were demonstrated between the expression of IL-10 and DAI (Pearson r = -0.789, P<0.01), IL-10 and HGC (Pearson r = -0.725, P<0.01). It can be concluded that to some extent paeoniflorin effectively alleviate the symptoms of oxazolone-induced colitis through regulating the expression of HBD-2, IL-6 and IL-10.

Study Type : Animal Study

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