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Rumen-derived lipopolysaccharide induced ruminal epithelium barrier damage in goats fed a high-concentrate diet.

Abstract：

:This study aimed to investigate the mechanism of lipopolysaccharide (LPS) released in the rumen on epithelium barrier function of goats fed a HC diet. Twelve Boer goats were randomly divided into two groups: low-concentrate(LC) diet and high-concentrate(HC) diet treatment. We found that the pH of rumen fluid in the HC group was lower than in the LC group (P < 0.05). The mRNA and protein expression levels of p38 mitogen-activated protein kinase (MAPK), extracellular regulated protein kinases (ERK), and c-Jun N-terminal kinase (JNK) in the rumen epithelium were lower in the LC group than the HC group (P < 0.05). Gene expression and protein levels of the tight junction proteins claudin-1, claudin-4, occludin, and Zona occludin-1 were all greater in the LC group than the HC group (P < 0.05). Staining of claudin-1, occludin and ZO-1 was became irregular. In conclusion, high concentrate diet feeding can impair rumen epithelium function and decrease tight junction protein expression through MAPK signaling pathway.

journal_name

Microb Pathog

journal_title

Microbial pathogenesis

authors

Zhang K,Meng M,Gao L,Tu Y,Bai Y

doi

10.1016/j.micpath.2019.02.007

subject

Has Abstract

pub_date

2019-06-01 00:00:00

pages

81-86

eissn

0882-4010

issn

1096-1208

pii

S0882-4010(18)31084-2

journal_volume

131

pub_type

杂志文章

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