human biology

A new study relying on DNA methylation clocks suggests that the biological age of mouse and human cells can fluctuate in response to stressful events.

By studying tissues from deceased people, a team found that women have more rhythmical gene expression and that this molecular rhythmicity decreases with age.

Researchers are going beyond fecal samples to understand how the patterns of commensal microbes in the gastrointestinal tract influence development and health.

A study of human populations around the world detects differing rates of horizontal gene transfer in the microbiome depending on what kind of society those people live in.

The findings may have implications for radiotherapy, a cancer treatment that can cause damage to salivary glands and leave lasting complications.