Alterations of the brain proteome and gut microbiota in D-galactose-induced brain aging mice with krill oil supplementation.

08:00 EDT 14th August 2019 | BioPortfolio

Summary of "Alterations of the brain proteome and gut microbiota in D-galactose-induced brain aging mice with krill oil supplementation."

Brain aging is commonly associated with neurodegenerative disorders, but the ameliorative effect of krill oil and the underlying mechanism remain unclear. In this study, the components of krill oil were measured, and the antiaging effects of krill oil were investigated in mice with D-galactose (D-gal)-induced brain aging via proteomics and gut microbiota analysis. Krill oil treatment decreased the expression of truncated dopamine- and cAMP-regulated phosphoproteins and proteins involved in the calcium signaling pathway. In addition, the concentrations of dopamine were increased in the serum (p<0.05) and brain (p>0.05) due to the enhanced expression of tyrosine-3-monooxygenase and aromatic L-amino acid decarboxylase. Moreover, krill oil alleviated gut microbiota dysbiosis, decreased the abundance of bacteria that consume the precursor tyrosine and increased the abundance of Lactobacillus spp. and short-chain fatty acid producers. This study revealed the beneficial effect of krill oil against D-gal-induced brain aging and clarified the underlying mechanism through proteomics and gut microbiota analysis.


Journal Details

This article was published in the following journal.

Name: Journal of agricultural and food chemistry
ISSN: 1520-5118


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