4.7 Review

Leveraging the Microbiome for Obesity: Moving From Form to Function

Journal

FRONTIERS IN ENDOCRINOLOGY
Volume 13, Issue -, Pages -

Publisher

FRONTIERS MEDIA SA
DOI: 10.3389/fendo.2022.918923

Keywords

gut; microbiome; microbiota; obesity; weight

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Treating obesity is a challenging global issue that requires addressing both behavioral and biological needs. Recent research on the gut microbiome has provided insights into obesity and potential therapies. Microbial metabolites produced in the gut can affect the body's metabolic and behavioral responses to food, contributing to obesity. However, there are limitations in current research, primarily due to a lack of causal studies in humans.
Treatment of obesity, an ongoing global epidemic, is challenging, as weight-loss efforts require a multidisciplinary approach addressing both behavioral and biologic needs that are not completely understood. Recent studies of the gut microbiome may provide better insight into the condition, and ultimately serve to advance more effective therapies. Research in this field has shifted from analyzing microbiome compositional differences to investigating functional changes that affect disease pathophysiology and outcome. Bacteria-derived metabolites are a way to bridge compositional changes to functional consequences. Through the production of metabolites, such as short chain fatty acids, tryptophan derivatives and bile acids, and interactions with peripheral and central signaling pathways, the gut microbiome may alter the body's metabolic and behavioral responses to food. Here, we summarize these mechanisms driven by gut-derived metabolites, through which the microbiome is thought to contribute to obesity, as well as review recent investigations of interventions related to these metabolites. Limitations of existing research, primarily due to paucity of causal studies in humans, are also discussed in this review.

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