University of California, San Francisco

Cardiology

HIV significantly increases risk for irregular heartbeat

HIV infection significantly increases the risk of atrial fibrillation (AF)—one of the most important causes of irregular heartbeats and a leading cause of stroke—at the same rate or higher than known risk factors such ...

Genetics

After 10-year search, scientists find second 'short sleep' gene

After a decade of searching, the UC San Francisco scientists who identified the only human gene known to promote "natural short sleep"—lifelong, nightly sleep that lasts just four to six hours yet leaves individuals feeling ...

Neuroscience

Simple blood test unmasks concussions absent on CT scans

Many patients with concussion have normal CT scans and are discharged from the hospital without follow-up. But a blood test that is currently under development and costs a fraction of the price of a brain scan may flag concussion ...

Medical research

New clues on stem cell transplant rejection revealed in study

In 2006, scientists discovered a way to "reprogram" mature cells—adult skin cells, for example—into stem cells that could, in principle, give rise to any tissue or organ in the body. Many assumed it was only a matter ...

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