期刊
FOOD & FUNCTION
卷 11, 期 7, 页码 6552-6564出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0fo01119c
关键词
-
资金
- National Natural Science Foundation of China [31671894]
Intestinal secretory immunoglobulin A (sIgA)-improving function ofLactobacillus casei-fermented blueberry pomace (FBP) was investigated in this study. Male C57BL/6 mice were fed with control diet (CD) or high-fat diet (HFD) with or without FBP supplementation. Expressions of sIgA-associated genes/proteins were evaluated by quantitative polymerase chain reaction (qPCR), western blot and enzyme-linked immunosorbent assay (ELISA). Commensal microbiota in Peyer's patches (PPs) and caecal contents were analyzed by 16S rRNA Illumina sequencing and qPCR, respectively. FBP improved sIgA production in HFD mice at mRNA and protein levels.AkkermansiaandLactobacillusin PPs of HFD mice were statistically increased by FBP. Beneficial microbiota and short-chain fatty acids (SCFAs) in caecal contents were positively correlated with caecal immunoglobulins in HFD mice. FBP showed an ability to modulate intestinal microbiota, which improved sIgA production in HFD mice, warranting the potential use of berry by-products as functional ingredients in improving the intestinal immune barrier of HFD individuals.
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