Sex-specific association between gut microbiome and fat distribution

Area of Science:

• Microbiome research
• Obesity studies
• Human physiology

Background:

• The gut microbiome is implicated in host obesity.
• Sex-specific links between the gut microbiome and fat distribution remain unclear.
• Understanding these differences is crucial for targeted interventions.

Purpose of the Study:

• To investigate sex-specific gut microbiome signatures associated with obesity and fat distribution.
• To identify bacterial taxa that correlate differently with fat distribution in men and women.
• To emphasize the importance of considering sex in microbiome research.

Main Methods:

• Comparative analysis of gut microbiome composition in relation to fat distribution metrics.
• Identification of bacterial taxa (species, genus, family levels) associated with the android fat ratio.
• Statistical analysis to determine sex-specific correlations.

Main Results:

• No significant species-level overlap in microbiome signatures associated with fat distribution between sexes.
• Overlap observed at genus and family levels (e.g., Holdemanella, Gemmiger) but with opposing correlations.
• Gut microbiome composition shows distinct sex-specific associations with fat distribution.

Conclusions:

• Fat distribution plays a significant role in sex-specific gut microbiome relationships.
• Future studies on gut microbiome and abdominal obesity must account for sex differences.
• Sex-specific microbiome profiles are critical for understanding obesity's complex etiology.