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Scientists are reporting the first clear success with a new approach for treating leukemia - turning the patients' own blood cells into assassins that hunt and destroy their cancer cells....

Scientists are closing in on a long-sought goal: A blood test to screen people for Alzheimer's disease. An experimental test did a good job of indicating how much of the telltale Alzheimer's plaque lurks in people's brains, Australian researchers reported Wednesday. If the test proves accurate in larger studies, it could offer a way to check people having memory problems to see who needs more definitive testing for the disease.

A gene in algae may make it possible to cure blindness in humans.

A gene that can turn many types of bacteria into deadly superbugs was found in about a quarter of water samples taken from drinking supplies and puddles on the streets of New Delhi, according to a new study....

Got blood? Future patients who need transfusions for surgery and cancer treatments could get it from a patch of their own skin.

Gene therapy has been used to correct an inherited blood disorder in what doctors say is a major step forward in treatment.

Scientist Paul Wooley has regrown a section of bone in a mammal's leg, a breakthrough he and collaborators say will revolutionize bone medicine worldwide.

It is an early step toward one day building new lungs: Yale University researchers took apart and regrew a rat's lung, and then transplanted ...

Cells grown in microgravity generate problematic proteins (absent in normal stem cells) that play a role in bone deterioration.

Five new genetic clues to why some women have a family history of breast cancer are identified by UK researchers.