Ingestion of Bifidobacterium Longum Changes MiRNA Levels in the Brains of Mice

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2021 Apr 15

PMID 33857178

Citations 3

Authors

Laura DeVries

Cara Horstman

Marie Fossell

Clayton Carlson

Affiliations

Soon will be listed here.

Abstract

The purpose of this research is to investigate the relationship between the microbiota of the gastrointestinal (GI) system and relative gene expression of miRNAs and mRNAs in the brain. C57BL/6 mice and Balb/c mice are fed Bifidobacterium longum, a well-characterized probiotic bacterial species shown to change behavior and improve sociability of Balb/c mice. After feeding, RNA was extracted from whole brains and PCR arrays were utilized to determine changes in the gene expression of brain-specific miRNAs. The results of these PCR arrays reveal that the relative gene expression of mmu-mir-652-3p is sensitive to B. longum probiotic treatment in C57BL/6 mice. qPCR was performed to measure expression of Dab1, an mRNA target of this miRNA. Dab1 expression is also dependent on B. longum. The goal of this study is to further understand the relationship between the gut microbiota and its impacts on neurological gene expression and brain function.

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