The impact of Lab4 probiotic supplementation in a 90-day study in wistar rats
File(s)
Published version
Author(s)
Type
Journal Article
Abstract
The anti-inflammatory and cholesterol lowering capabilities of probiotic bacteria highlight them as potential prophylactics against chronic inflammatory diseases, particularly cardiovascular disease. Previous studies in silico, in vitro, and in vivo suggest that the Lab4 probiotic consortium may harbour such capabilities and in the current study, we assessed plasma levels of cytokines/chemokines, short chain fatty acids and lipids and faecal levels of bile acids in a subpopulation of healthy Wistar rats included in 90-day repeat dose oral toxicity study. In the rats receiving Lab4, circulating levels of pro-inflammatory interleukin-6, tumour necrosis factor-α and keratinocyte chemoattractant/growth regulated oncogene were significantly lower compared to the control group demonstrating a systemic anti-inflammatory effect. These changes occurred alongside significant reductions in plasma low density lipoprotein cholesterol and increases in faecal bile acid excretion implying the ability to lower circulating cholesterol via the deconjugation of intestinal bile acids. Correlative analysis identified significant associations between plasma tumour necrosis factor-α and the plasma total cholesterol:high density lipoprotein cholesterol ratio and faecal levels of bifidobacteria in the Lab4 rats. Together, these data highlight Lab4 supplementation as a holistic approach to CVD prevention and encourages further studies in humans.
Date Issued
2021-11-25
Date Acceptance
2021-11-02
Citation
Frontiers in Nutrition, 2021, 8, pp.1-7
ISSN
2296-861X
Publisher
Frontiers Media
Start Page
1
End Page
7
Journal / Book Title
Frontiers in Nutrition
Volume
8
Copyright Statement
© 2021 Webberley, Masetti, Baker, Dally, Hughes, Marchesi, Jack, Plummer, Ramanathan, Facey and Michael. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
License URL
Identifier
https://www.frontiersin.org/articles/10.3389/fnut.2021.778289/full
Subjects
1001 Agricultural Biotechnology
1111 Nutrition and Dietetics
Publication Status
Published
Article Number
778289
Date Publish Online
2021-11-25