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Exercise reorganizes the brain to be more resilient to stress

By Guest PostJuly 10, 2013Healthbrain, brain cell, brain region, brian hsueh, elizabeth gould, exercise, fight, flight, gaba, gamma aminobutyric acid, human anxiety disorders, immediate early genes, mechanism, neurons, neurotransmitter, normal brain function, pedro pieruzzini, pedro rada, physical activity, princeton university, reaction, regulate anxiety, resilient to stress, sedentary mice, stanford university, timothy schoenfeld, university of los andes, Venezuela, ventral hippocampus

Physical activity reorganizes the brain so that its response to stress is reduced and anxiety is less likely to interfere with normal brain function, according to a research team based at Princeton University.

The researchers report in the Journal of Neuroscience that when mice allowed to exercise regularly experienced a stressor — exposure to cold water — their brains exhibited a spike in the activity of neurons that shut off excitement in the ventral hippocampus, a brain region shown to regulate anxiety. (more…)

Nicotine May Play Key Role in Promising Alzheimer’s Therapy

By Guest PostOctober 13, 2010Health, Sciencea-beta, alpha7 nicotinic acetylcholine receptor, alpha7 receptor, alzheimer, angela lee, bace-1 knockouts, bace1, brain nicotine receptors, calcium uptake, disease, enzyme, fiona laird, hey kyoung lee, hui wang, lihua song, neurological disorder, neurons, neuroscientists, neurotransmitters, nicotine, normal brain function, peptide, philip c wong, schizophrenia, sixth-leading cause of death, united states, university of maryland

COLLEGE PARK, Md. — A team of neuroscientists has discovered important new information in the search for an effective treatment for Alzheimer’s disease, the debilitating neurological disorder that afflicts more than 5.3 million Americans and is the sixth-leading cause of death in the United States. Hey-Kyoung Lee , associate professor in the University of Maryland Department of Biology, and her research team have shown that they may be able to eliminate debilitating side effects caused by a promising Alzheimer’s drug by stimulating the brain’s nicotine receptors. (more…)

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Exercise reorganizes the brain to be more resilient to stress

Nicotine May Play Key Role in Promising Alzheimer’s Therapy