The Scientist

Mice fed a diet high in saturated fat show shifts in their gut microbes and develop obesity-related inflammation.

Duplication of copy number variants may be the source of greatest diversity among people, researchers find.

Scientists establish a functional circadian rhythm in bacteria that don’t possess one naturally.

Gene expression varies not only during the day but also throughout the year, a study shows.

Scientists reengineer a Cas9 enzyme that naturally targets bacterial RNA to stymie hepatitis C inside human cells.

Researchers make more progress toward growing human intestines in mice, paving the way for better models of intestinal function and failure.

Social adversity shapes humans’ immune systems—and probably their susceptibility to disease—by altering the expression of large groups of genes.

Researchers identify a network that includes many genes previously linked to autism spectrum disorders.

B cells have commandeered ancient viral sequences in the genome to transmit antigen signals.