The DNA of bacteria that live in the body can pass a trait to offspring in a way similar to the parents’ own DNA, a new mouse study suggests. According to the authors, the discovery means scientists need to consider a significant new factor – microbial DNA– in their efforts to understand how genes influence illness and health.
Signals from the immune system that help repel a common parasite inadvertently can cause a dormant viral infection to become active again, a new study from the School of Medicine shows. Pictured is a helminth parasite.
New research by Herbert W. “Skip” Virgin, MD, PhD, and colleagues may explain why advanced AIDS patients often develop gastrointestinal disease.
Scientists at Washington University School of Medicine in St. Louis are playing a leading role in an international collaboration dedicated to understanding genes that contribute to inflammatory bowel disease.