Gut bacterial genetic variants link to human health traits and aging

Researchers conducted a large scale study analyzing approximately 12.8 million single nucleotide variants in gut microbes taken from 10,781 individuals. News-Medical reported that the study, published in the journal Nature, identified 940 independent associations between microbial genetic variants and 69 human health characteristics and environmental exposures. [1]

According to News-Medical, the researchers examined data across six separate cohorts to investigate how hidden genetic differences in gut bacteria relate to human metabolism, aging, and general health. The study demonstrated that two individuals can harbour similar overall gut bacteria populations while possessing distinct microbial genetic profiles. [1]

Genetic engineering involves the technological modification and manipulation of an organism's genes, including the transfer of genes across species boundaries to alter cellular makeup. The first recombinant DNA molecule was created by Paul Berg in 1972 using genetic material from the monkey virus SV40. [2]

News-Medical reported that nearly two-thirds of the identified associations were not accompanied by significant differences in bacterial species abundance. These findings indicate that analyzing microbial genetics can reveal health relationships that standard species abundance measurements fail to detect. [1]