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Alzheimer's Risk Gene Disrupts Brain's Wiring 50 Years Before Disease Hits

Researchers at UCLA have identified a gene, possessed by 88 percent of Caucasians, that impairs the development of myelin (the protective covering around the neuron's axons in the brain) in the young, making it weaker and more vulnerable to the onset of Alzheimer's much later in life.

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As Time Goes By, It Gets Tougher to "Just Remember This"

The older we get, the more difficulty we seem to have remembering things. We reassure ourselves that our brains' "hard drives" are too full to handle the new information that comes in daily. But a Johns Hopkins neuroscientist suggests that our aging brains are unable to process this information as "new" because the brain pathways leading to the hippocampus become degraded over time. As a result, our brains cannot accurately "file" new information.

Medicine

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Parkinson's Disease, Dopamine, Brain Abnormalities, Neurodegenerative Disease, Mitochondria

Unique Vulnerability Found in Cells Hit by Parkinson's

New data offer hints to why Parkinson’s disease so selectively harms brain cells that produce the chemical dopamine, say researchers at Washington University School of Medicine in St. Louis.

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Practice, Not Loss of Sight, Improves Sense of Touch in the Blind

New research from McMaster University may answer a controversial question: do the blind have a better sense of touch because the brain compensates for vision loss or because of heavy reliance on their fingertips? The study, published in the most recent edition of the Journal of Neuroscience, suggests daily dependence on touch is the answer.

Medicine

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Stroke, Sleep, stroke medication, American Academy Of Neurology, AAN, wake-up strokes, Neurology Journal, Journal Neurology

1 in 7 Strokes Occurs During Sleep, Many Go Without Clot-Busting Treatment

Approximately 14 percent of all strokes occur during sleep, preventing many from getting clot-busting treatment, according to a study published in the May 10, 2011, print issue of Neurology®, the medical journal of the American Academy of Neurology.

Medicine

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Stroke Treatment, Gender And Stroke, Gender Differences

When It Comes to Clearing Arteries – Sex Plays a Part

Gender may play an important role when choosing treatment options for clearing dangerously clogged arteries, according to a new study from researchers at the University of Alabama at Birmingham School of Public Health.

Science

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Neuroscience, Semaphorins, Neuron Growth

Scientists Reveal Nerve Cells’ Navigation System

Johns Hopkins scientists have discovered how two closely related proteins guide projections from nerve cells with exquisite accuracy, alternately attracting and repelling these axons as they navigate the most miniscule and frenetic niches of the nervous system to make remarkably precise connections.

Medicine

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Diabetes, diabetic nerve pain, Jerry Mathers, pain, Diabetic Neuropathy

Actor Jerry Mathers Hosts Free Video to Help People with Diabetic Nerve Pain

Actor Jerry Mathers is the host of the American Academy of Neurology Foundation’s latest patient education video and guidebook, Diabetic Nerve Pain: A Guide for Patients and Families. The video and guidebook are aimed at answering important questions for people who suffer from nerve pain due to diabetes and can be viewed and downloaded for free by visiting www.aan.com/patients. Printed copies of the guidebook and video may be purchased at www.aan.com/store.

Medicine

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Addiction, Smoking, Drug Abuse, Cocaine, Tobacco

Nicotine and Cocaine Leave Similar Mark on Brain After First Contact

The effects of nicotine upon brain regions involved in addiction mirror those of cocaine, according to new neuroscience research. A single 15-minute exposure to nicotine caused a long-term increase in the excitability of neurons involved in reward, according to a University of Chicago study published in The Journal of Neuroscience.

Medicine

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Stress, Social Stress, Inflammation, Brain

Researchers See A 'Picture' of Threats in the Brain

A team of researchers is beginning to see exactly what the response to threats looks like in the brain at the cellular and molecular levels.







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