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Blood-Clotting Protein Prevents Repair in the Brain

2018-5-7 20:32     发布者: 满江香漂 原作者: Julie Langelier / Gladstone 来自: gladstone 评论 0 查看 69
Picture a bare wire, without its regular plastic coating. It’s exposed to the elements and risks being degraded. And, without insulation, it may not conduct electricity as well as a coated wire. Now, ...
Picture a bare wire, without its regular plastic coating. It’s exposed to the elements and risks being degraded. And, without insulation, it may not conduct electricity as well as a coated wire. Now, imagine this wire is inside your brain.

That’s what happens in many diseases of the nervous system, such as multiple sclerosis (MS), spinal cord injuries, stroke, neonatal brain injuries, and even Alzheimer’s disease.

Much like that bare wire, the nerve fibers in the brain lose their protective coating, called myelin, and become extremely vulnerable. This leaves the nerve cells exposed to their environment and reduces their ability to transmit signals quickly, resulting in impaired cognition, sensation, and movement.

In disease, the brain seems to activate mechanisms to repair myelin, but cannot complete the process. For years, scientists have been trying to understand why these repair mechanisms are halted, as overcoming this obstacle holds great potential for treating disabling neurological diseases.

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