Abstract Title:

Propolis from Different Geographic Origins Decreases Intestinal Inflammation and Bacteroides spp. Populations in a Model of DSS-Induced Colitis.

Abstract Source:

Mol Nutr Food Res. 2018 09 ;62(17):e1800080. Epub 2018 Aug 5. PMID: 29889351

Abstract Author(s):

Kai Wang, Xiaolu Jin, Qiangqiang Li, Alexandra Christine Helena Frankland Sawaya, Richard K Le Leu, Michael A Conlon, Liming Wu, Fuliang Hu

Article Affiliation:

Kai Wang


SCOPE: Dietary supplementation with polyphenol-rich propolis can protect against experimentally induced colitis. We examined whether different polyphenol compositions of Chinese propolis (CP) and Brazilian propolis (BP) influence their ability to protect against dextran sulfate sodium (DSS)-induced colitis in rats.

METHODS AND RESULTS: HPLC-DAD/Q-TOF-MS analysis confirmed that polyphenol compositions of CP and BP were dissimilar. Rats were given CP or BP by gavage (300 mg kgbody weight) throughout the study, starting 1 week prior to DSS treatment for 1 week followed by 3 d without DSS. CP and BP significantly reduced the colitis disease activity index relative to controls not receiving propolis, prevented significant DSS-induced colonic tissue damage, and increased resistance to DSS-induced colonic oxidative stress as shown by reduced malonaldehyde levels and increased T-AOC levels. CP and BP significantly reduced DSS-induced colonic apoptosis. Colonic inflammatory markers IL-1β, IL-6, and MCP-1 were suppressed by CP and BP, whereas only BP-induced expression of TGF-β. CP, not BP, increased the diversity and richness of gut microbiota populations. Both forms of propolis significantly reduced populations of Bacteroides spp.

CONCLUSIONS: Despite the dissimilar polyphenol compositions of CP and BP, their ability to protect against DSS-induced colitis is similar. Nevertheless, some different physiological impacts were observed.

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