Baseline gut microbiome patterns may help predict response after starting semaglutide or empagliflozin in type 2 diabetes.
Evidence
This longitudinal fecal microbiome study followed type 2 diabetes patients at baseline and months 1, 3, and 12 using 16S rRNA sequencing plus plasma and urine clinical markers.
Caveat
The abstract reports microbiome associations and prediction signals but does not give sample size, model performance, or evidence that microbiome differences caused treatment response.
Simplified
The gut microbiome has been shown to be affected by the use of many human-targeted medications, and the interaction can be bidirectional. This has been clearly demonstrated for type 2 diabetes medications that have been in clinical use for several decades. However, the bidirectional effects of novel type 2 diabetes drugs semaglutide, empagliflozin, and the gut microbiome have yet to be clearly described. Considering this, we investigate the effect of semaglutide and empagliflozin initiation on the gut microbiome of type 2 diabetes patients. In addition, we analyze whether the pre-treatment gut microbiome can predict the treatment efficacy. In the study, patients with type 2 diabetes donated gut microbiome fecal samples at four timepoints (Baseline, Month 1, Month 3, Month 12) that were studied using 16S ribosomal RNA gene sequencing and analysis. Subjects additionally donated plasma and urine samples for quantitative measurement of clinical markers before treatment initiation and at Months 3 and 12. Repeated measures ANOVA paired with paired t-tests were used to analyze the effects of drug initiation on the gut microbiome. Pearson correlation was used to identify microbial features associated with the change in clinical parameters. First, semaglutide and empagliflozin use is associated with changes in the gut microbiome after treatment initiation, but changes in microbial diversity were not detected. Moreover, the baseline gut microbiome predicted changes in for semaglutide and empagliflozin users. Based on the results, our findings suggest that semaglutide and empagliflozin impact the gut microbial community during treatment. In addition, the baseline gut microbiome can predict semaglutide treatment effects.
Key numbers
−11.37 mmol/mol (1.11%)
Decrease in for semaglutide
Change in after 3 months of treatment.
−13.88 mmol/mol (0.88%)
Decrease in for empagliflozin
Change in after 3 months of treatment.
20
20 subjects enrolled
Total number of participants in the study.
Full Text
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