Stem cell shift may lead to infections, leukemia

By Christen Brownlee, 15:52 PM April 15, 2008

Researchers have long wondered why elderly people suffer more infections and have a greater chance of developing myeloid leukemia, a type of blood cancer, than younger people do. Now, research in mice suggests that the aging of blood-producing stem cells could be responsible for both conditions.

With age, the body of a person or other animal loses its capacity to sustain its tissues and organs. "Since we know the cells mediating this maintenance are stem cells, it doesn't take a great leap of...

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