Stem cell research may have seemed like science fiction when research first began 50 years ago. But that work has finally come to fruition with the isolation of a human blood stem cell in its purest form.

Excess amounts of fat and sugar force cells to self destruct when they can no longer stand the toxic environment. Scientists believe they now know why these overloaded cells commit suicide.

It is known that differences among white blood cell counts vary by race or ethnicity. Scientists have recently discovered the genes responsible for those differences in white blood cell counts.

The common belief is that sepsis, a potentially deadly illness where the bloodstream is overwhelmed by bacteria, is caused by a bacterial infection. A new study indicates that might not be the case.

Patients with acute coronary syndromes often must resort to stents or balloon angioplasty to relieve artery constriction. Now the European Society of Cardiology is suggesting new strategies to minimize bleeding during such procedures.

Three patients with end stage renal disease mark the first to successfully receive blood vessels engineered in a lab from human skin cells. Following additional testing, "off the shelf" blood vessels could be as readily available as medical gauze.

Bloodstream infections are an ongoing concern in all hospital intensive care units. One large academic medical facility has found a way to eliminate a type of bloodstream infection over the last six months.

Millions of people use over-the-counter pain relievers known as analgesics and nonsteroidal anti-inflammatory drugs (NSAIDs) every day. A new study shows that using a certain one of these medicines on a regular basis carries risks.

Acute lymphoblastic leukemia is the most common type of childhood cancer. A new drug therapy holds promise in treating this particularly aggressive disease.

Acute lymphoblastic leukemia (ALL) used to be one of the deadliest cancers for children and young adults. Now it's one of the most curable, and cures rates are climbing.