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Periodic paralysis study reveals gene causing disorder

Scientists have identified a gene underlying a disease that causes temporary paralysis of skeletal muscle. The finding, they say, illustrates how investigations of rare genetic diseases can drive insights into more common ones.

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Telomeres and the Remarkable Telomerase Enzyme

Telomeres — which are the DNA repeats that form the tips of chromosomes and are produced by the telomerase enzyme — play a crucial, and curious, role in the life of the cell.

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New research strategy for understanding drug resistance in leukemia

UCSF researchers have developed a new approach to identify specific genes that influence how cancer cells respond to drugs and how they become resistant. This strategy, which involves producing diverse genetic mutations that result in leukemia and associating specific mutations with treatment outcomes, will enable researchers to better understand how drug resistance occurs in leukemia and other cancers, and has important long-term implications for the development of more effective therapies.

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Some skin cancer may be mediated by primary cilia activity

Tiny, solitary spikes that stick out of nearly every cell in the body play a central role in a type of skin cancer, new research has found. The discovery in mice shows that the microscopic structures known as primary cilia can either suppress or promote this skin cancer, depending on the mutation triggering the disease.

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PTSD Linked with Almost Double Dementia Risk, Study Finds

Older veterans with post-traumatic stress disorder were almost twice as likely to develop dementia as veterans without PTSD in a study of more than 180,000 veterans led by researchers at the San Francisco VA Medical Center and the University of California, San Francisco.

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Memories may be formed throughout the day, not just while sleeping

Scientists have long thought that processes occurring during sleep were responsible for cementing the salient experiences of the day into long-term memories. Now, however, a study of scampering rats suggests that the mechanisms at work during sleep are also active while the animals are awake -- and that they encode events more accurately.

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