A new study has discovered in mouse models that genes associated with repairing mismatched DNA are critical in eliciting damages to neurons that are most vulnerable in Huntington's disease and triggering downstream pathologies and motor impairment, shedding light on disease mechanisms and potential new ways to develop therapies.

Scientists have developed an innovative method for growing brain tumors of individual patients in the laboratory that mimic the original structure and the molecular property of the parental tumor as closely as possible. Drug tests in this model were found to correlate very well with actual patient responses, making it a valuable method for investigating therapies.

The pleasurable urge to move to music -- to groove -- appears to be a physiological response independent of how much we generally enjoy music, according to a new article. That groove response is so strong it is even found in people with musical anhedonia, those who take little or no pleasure from music. Researchers compared groove responses to more than 50 short pieces of music in people with musical anhedonia and non-anhedonic controls and found that for people with anhedonia, the urge to move appears to drive their experience of pleasure. That suggests that the blunted pleasure sensation found in people with musical anhedonia is compensated by the urge to move.

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