Discovery of Unexplored Gut Microbiomes in India's Tribal Communities
Researchers from BRIC–National Centre for Cell Science (NCCS), Pune, have identified 14 new bacterial species and nearly 200 local microbial strains in the gut microbiomes of India's tribal communities, indicating a vast unexplored microbial diversity in the country.
Significance of the Study
- This research challenges the concept of a universal “healthy” gut microbiome, showing microbial composition is influenced by geography, diet, and community.
- The study questions reliance on Western-developed microbiome reference data and probiotics.
Understanding the Gut Microbiome
The gut microbiome consists of bacteria, fungi, viruses, and microorganisms aiding in digestion, immune regulation, intestinal protection, and preventing harmful microbial growth.
Key Insights from the Research
- Study involved eight Indian tribal communities, revealing three dominant bacterial groups: Segatella, Agathobacter, and Faecalibacterium.
- Indian microbial strains differed genetically from Western ones, underlining the need for population-specific microbiome data.
Diet's Influence on Microbiomes
- Trans-Himalayan communities consuming dairy showed greater bacterial diversity and higher Bifidobacterium levels.
- Microbiomes adapt to local dietary patterns, shown by genetic differences in carbohydrate digestion.
Implications of the Findings
- Genetic variation in Bifidobacterium adolescentis suggests probiotics need local evaluation.
- Highlights the necessity for an India-specific microbiome database for improved nutrition, metabolic disease research, and personalized medicine.
Conclusion
The discovery of new bacterial species and strains emphasizes the untapped microbial diversity in India, advocating for a localized approach in probiotics and dietary interventions.
