A Comprehensive Pilot Study to Elucidate the Distinct Gut Microbial Composition and Its Functional Significance in...

Area of Science:

• Microbiome research
• Cardio-metabolic disease
• Gut health

Background:

• Cardio-metabolic disease is a growing global health concern.
• Gut microbial dysbiosis is increasingly recognized as a factor in disease susceptibility.
• Understanding the gut microbiome's role is crucial for developing new therapeutic strategies.

Purpose of the Study:

• To characterize the gut microbiota composition and function in individuals with cardio-metabolic disease compared to healthy controls.
• To identify specific microbial features and metabolic pathways associated with cardio-metabolic disease.
• To explore the relationship between gut microbes, host genes, and disease markers.

Main Methods:

• Stool samples were collected from 18 subjects (12 with cardio-metabolic disease, 6 healthy controls).
• Metagenomics analysis and functional prediction were performed using QIIME2 and PICRUSt.
• Assessments included microbe-gene interactions, gene ontology, and microbe-disease associations.

Main Results:

• Distinct microbial patterns were observed in the diseased group, with significant variations in 14 microbial features.
• Enrichment of Lachnospiraceae family correlated with obesity, insulin resistance, and metabolic disturbances.
• Reduced levels of Clostridium, Gemmiger, and Ruminococcus genera were linked to inflammation and compromised gut barrier function.
• Functional analyses revealed dysregulated amino acid metabolism and energy equilibrium pathways, associated with elevated branch-chain amino acids and insulin resistance.

Conclusions:

• Significant shifts in gut microbial composition and function are associated with cardio-metabolic disease.
• Gut microbial dysbiosis plays a critical role in the progression of cardio-metabolic diseases.
• Restoring gut microbial balance presents a promising therapeutic avenue for managing cardio-metabolic disease burden.