Day: February 20, 2020

A deep dive into cellular aging

February 20, 2020

Scientists at Sanford Burnham Prebys Medical Discovery Institute and Harvard University have discovered that mitochondria trigger senescence, the sleep-like state of aged cells, through communication with the cell’s nucleus—and identified an FDA-approved drug that helped suppress the damaging effects of the condition in cells and mice. The discovery, published in Genes & Development, could lead […]

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Empathy can be detected in people whose brains are at rest

February 20, 2020

UCLA researchers have found that it is possible to assess a person’s ability to feel empathy by studying their brain activity while they are resting rather than while they are engaged in specific tasks. Traditionally, empathy is assessed through the use of questionnaires and psychological assessments. The findings of this study offer an alternative to […]

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How too much fluoride causes defects in tooth enamel

February 20, 2020

Exposing teeth to excessive fluoride alters calcium signaling, mitochondrial function, and gene expression in the cells forming tooth enamel—a novel explanation for how dental fluorosis, a condition caused by overexposure to fluoride during childhood, arises. The study, led by researchers at NYU College of Dentistry, is published in Science Signaling. Fluoride is a naturally occurring […]

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Binaural beats synchronize brain activity, don’t affect mood

February 20, 2020

An auditory illusion thought to synchronize brain waves and alter mood is no more effective than other sounds, according to research in adults recently published in eNeuro. The effect reported in other studies might be a placebo but could still have helpful effects for some people. Binaural beats are an auditory illusion caused by listening […]

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