When someone gets a bad infection, the body's immune system rushes in to fight the germs. But sometimes this defense system ...

Organ transplants save lives, but unfortunately rejection is a key hurdle. Now scientists have demonstrated a potential new way to prime a recipient’s immune system to accept a transplanted organ, by ...

During fasting or exercise, immune cells (red) migrate to the pancreas and stimulate glucagon-producing cells (orange) to regulate blood sugar, with cell nuclei shown in blue. “For decades, immunology ...

A “forgotten” immune organ, the thymus, may hold the key to better cancer outcomes and lower disease risk. Credit: ...

Dr. Leondo Ferreira of the Medical University of South Carolina takes patient samples obtained from University Hospital La Paz in Madrid, Spain from a liquid nitrogen tank. A Medical University of ...

One shot in the arm, and the whole body is protected. But how? For one thing, the immune system produces antibodies and cells that patrol the entire organism by traveling through the bloodstream. For ...

Modifying the organ instead of the recipient isn’t a new idea, but it is an important one, said Jeffrey Platt, a transplantation biologist at the University of Michigan Medical School who was not ...

From your digestive system to sleep, here are the overlooked signals that indicate your health could be struggling ...

Aging does not arrive all at once. It builds quietly across years, touching cells long before symptoms appear.

Doctors explain which organs humans can live without, how the body adapts after organ loss, and the long-term health effects ...