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Saturday, June 6, 2015

Senior Health: Protein that silences the biological clock ♦ Genetic system that affects aging identified ♦ Alzheimer's causes memory loss even before brain degeneration

Alzheimer's culprit causes memory loss even before brain degeneration A brain protein believed to be a key component in the progress of dementia can cause memory loss in healthy brains even before physical signs of degeneration appear.
Natural variants in genetic system that affects aging identified A study of the rapid evolution of the insulin-signaling molecular network that regulates growth, reproduction, metabolism and aging lays important groundwork for future studies.
Scientists discover a protein that silences the biological clock A protein associated with cancer cells is a powerful suppressor of the biological clock that drives the daily ('circadian') rhythms of cells throughout the body. The discovery adds to a growing body of evidence suggesting a link between cancer and disruption of circadian rhythms, while offering new insights into the molecular mechanisms of the biological clock.
End game: Sport can ease the transition into retirement Adjusting to the many changes retirement brings can mean the difference between a positive quality of life and one that struggles under the weight of change. A new study examined sport and its ability to impact the quality of life of a person as he or she transitions to retirement.

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