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Wednesday, April 22, 2015

activating brain stem cells

Drugs that activate brain stem cells may reverse multiple sclerosis

NIH-funded study identifies over-the-counter compounds that may replace damaged cells
Two drugs already on the market — an antifungal and a steroid — may potentially take on new roles as treatments for multiple sclerosis. According to a study published in Nature today, researchers discovered that these drugs may activate stem cells in the brain to stimulate myelin producing cells and repair white matter, which is damaged in multiple sclerosis. The study was partially funded by the National Institute of Neurological Disorders and Stroke (NINDS), part of the National Institutes of Health.
Illustration of remyelination
An artist’s representation of the study. Scientists found that certain drugs were able to promote remyelination in mouse models of multiple sclerosis. Image courtesy of Case Western Reserve University; Illustrator: Megan Kern
Specialized cells called oligodendrocytes lay down multiple layers of a fatty white substance known as myelin around axons, the long “wires” that connect brain cells. Myelin acts as an insulator and enables fast communication between brain cells. In multiple sclerosis there is breakdown of myelin and this deterioration leads to muscle weakness, numbness and problems with vision, coordination and balance./.../

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