New Studies Uncover 11 Genetic Regions Influencing Gut Microbiome

Two recent studies involving over 28,000 individuals have identified 11 genetic regions in the human genome that significantly influence the composition and function of gut bacteria. Previously, only two such genetic regions were known.

The gut microbiome, the community of bacteria in our intestines, is a critical area of research due to its impact on health and disease.

These comprehensive international investigations analyzed genetic data and gut bacteria to establish a clearer link between an individual's genes and their microbiome.

Unpacking the Gut's Genetic Blueprints

The newly identified genetic regions are associated with fundamental processes in the gastrointestinal tract. These include nutrient absorption and the body's response to bacteria.

Specifically, these mechanisms involve molecules on gut cell surfaces that serve as food for bacteria and how the gut reacts to bacterial products.

Linking Genetic Variants to Disease Risk

Researchers observed clear associations between some of these genetic variants and an increased risk of certain diseases. These include gluten intolerance, haemorrhoids, and cardiovascular diseases.

This crucial finding suggests that understanding changes in intestinal bacteria composition could provide valuable insights into how genetic risks affect health.

Led by International Experts, Aiming for Future Treatments

These landmark studies were led by Tove Fall, Professor of Molecular Epidemiology at Uppsala University, and Claes Ohlsson, Professor at the University of Gothenburg, along with Kristian Hveem, Professor at the Norwegian University of Science and Technology (NTNU).

The researchers aim to use these findings to develop improved methods for preventing and treating diseases. This will be achieved by considering the intricate interaction between genes, gut biology, and the microbiome.