Probiotics and Genomic Approaches in Gut Health

Probiotics, defined as live microorganisms that confer health benefits upon the host when administered in adequate amounts, have emerged as a pivotal element in maintaining gut homeostasis and preventing disease. The human gastrointestinal tract hosts a complex ecosystem of bacteria, fungi and viruses whose composition and function influence digestion, immune regulation and even neurological health. Recent advances in genomic technologies—ranging from whole-genome sequencing of individual strains to metagenomic surveys of entire microbial communities—have revolutionised our understanding of these interactions. Comparative genomics has revealed genetic determinants of survival under gastric acidity, bile tolerance and adhesion to the mucosal surface, while multi-omics integration combines data from genomics, transcriptomics, proteomics and metabolomics to elucidate mechanisms of action at the molecular level. These approaches enable the rational selection of next-generation probiotics tailored to specific conditions such as inflammatory bowel disease or metabolic syndrome. Safety profiling through in silico screening for virulence factors and antibiotic-resistance genes further underpins regulatory approval and clinical translation. Collectively, genomic tools are accelerating the development of precision probiotics, fostering global initiatives in personalised nutrition and microbial therapeutics.

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Probiotics and Genomic Approaches in Gut Health publication trend

The graph below shows the total number of articles in probiotics and genomic approaches in gut health across all publications each year (not limited to Nature Index journals).

Technical terms

Gut microbiota: The community of microorganisms residing in the gastrointestinal tract.

Metagenomics: The sequencing and analysis of genetic material recovered directly from environmental samples.

Multi-omics: The integrated study of multiple layers of biological information (genomic, transcriptomic, proteomic, metabolomic).

Comparative genomics: The examination of genome sequences across different strains or species to identify shared and unique genetic features.

Pangenome: The full complement of genes present within all strains of a given species.

Bacteriocins: Antimicrobial peptides produced by bacteria that inhibit closely related or pathogenic species.

References

1. ‘Multi-omics’ data integration: applications in probiotics studies. npj Science of Food (2023).
2. Probiogenomics of Lactobacillus delbrueckii subsp. lactis CIDCA 133: In Silico, In Vitro, and In Vivo Approaches. Microorganisms (2021).
3. Genomic Characterization of Lactobacillus delbrueckii Strains with Probiotics Properties. Frontiers in Bioinformatics (2022).