University of Pennsylvania

Student seeks to improve pneumonia vaccines

Almost a million Americans fall ill with pneumonia each year. Nearly half of these cases require hospitalization, and 5-7 percent are fatal. Current vaccines provide protection against some strains of the ...

Aug 20, 2014
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Blood stem cell longevity explained

(Medical Xpress)—The blood stem cells that live in bone marrow are at the top of a complex family tree. Such stem cells split and divide down various pathways that ultimately produce red cells, white cells ...

Nov 26, 2013
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Neurons coordinate to fine-tune motor control

Whether it is playing a piano sonata or acing a tennis serve, the brain needs to orchestrate precise, coordinated control over the body's many muscles. Moreover, there needs to be some kind of feedback from ...

Feb 28, 2014
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