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image: Herpes Viruses Implicated in Alzheimer’s Disease

Herpes Viruses Implicated in Alzheimer’s Disease

By Anna Azvolinsky | June 21, 2018

A new study shows that the brains of Alzheimer’s disease patients have a greater viral load, while another study in mice finds infection leads to amyloid-β build up.

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image: Dopamine Neuron Implants Ease Parkinson’s Symptoms in Monkeys

Dopamine Neuron Implants Ease Parkinson’s Symptoms in Monkeys

By Sukanya Charuchandra | June 20, 2018

The stem cell–derived transplants were stable for 24 months and led to wide-ranging behavioral improvements in the monkeys.  

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The organs showed neural activity for up to 36 hours, adding fuel to discussions about the ethics of future neuroscientific research.

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A new study reports that immune memory may contribute to neurodegenerative diseases.

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A proposed definition of the disease emphasizes signs of neurodegeneration and the presence of β-amyloid and tau, rather than cognitive symptoms.

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image: Image of the Day: Aging Brain Cells

Image of the Day: Aging Brain Cells

By The Scientist Staff | March 13, 2018

Scientists identified a gene involved in the age-related deterioration of mouse neural stem cells.

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Failure to produce evidence of neural precursor cells and immature neurons raises questions about the role of the process in learning and memory.

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image: Prosthetic Retinas Help Blind Mice See

Prosthetic Retinas Help Blind Mice See

By Ashley Yeager | March 6, 2018

Artificial photoreceptors made of nanowires help restore blind animals’ sensitivity to light.

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The test uses levels of plasma amyloid-β to estimate the buildup of protein plaques in the brain.

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The elimination of these glia in the mouse brain ameliorated the development of Parkinsonian neuropathologies induced by the pesticide toxin paraquat.  

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