Bifidobacterium longum CCFM1206 was isolated from the feces of healthy adults and can transform sulforaphane into sulforaphane (SFN).This paper studied the regulation of water extract of broccoli seeds (BSE) and different doses of B.longum CCFM1206 (108, 109 and 1010 CFU) on the levels of SFN in the intestine of mice and the alleviation of dextran sulfate sodium (DSS) induced colitis.Compared with the BSE group, supplementation with 109 and 1010 CFU of B.longum CCFM1206 significantly increased the total amount of SFN and N-acetyl sulforaphane (SFN-NAC) in the feces of mice from 30.84 μmol/g to 45.48 and 49.32 μmol/g (P<0.05), respectively.Dietary BSE (200 mg/kg body weight) can effectively alleviate colon shortening, reduce the levels of inflammatory factors (IL-6, IL-1β and TNF-α), enhance the antioxidant enzyme activities (GSH, SOD), up-regulate the gene transcription and protein expression of tight junction proteins, activate Nrf2 signaling pathway and inhibit NF- κB signal pathway.Supplementation with 108 CFU of B.longum CCFM1206 showed no significant differences from BSE, while supplementation with 109 and 1010 CFU of B.longum CCFM1206 more significantly activated Nrf2 and inhibited NF-κB signal pathway, which may be related to the generation of more SFNs.This study provides theoretical basis and dose reference for the development of dietary preparations to alleviate colitis.
XU Heying
,
WU Jiaying
,
TANG Xin
,
ZHANG Qiuxiang
,
CUI Shumao
,
ZHAO Jianxin
,
MAO Bingyong
. Study on the alleviating effects of different doses of Bifidobacterium longum combined with Broccoli seed extract on colitis[J]. Food and Fermentation Industries, 2024
, 50(12)
: 92
-100
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DOI: 10.13995/j.cnki.11-1802/ts.036889
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