Newswise — BOSTON – January 6, 2012 – Scientists at Joslin Diabetes Center, Harvard University, and the University of Cambridge have found that the age-related impairment of the body’s ability to replace protective myelin sheaths, which normally surround nerve fibers and allow them to send signals properly, may be reversible, offering new hope that therapeutic strategies aimed at restoring efficient regeneration can be effective in the central nervous system throughout life.
In a proof-of-principle study published in the journal Cell Stem Cell, the researchers report that defects in the regeneration of the myelin sheaths surrounding nerves, which are lost in diseases such as multiple sclerosis may be at least partially corrected following exposure of an old animal to the circulatory system of a young animal. Myelin is a fatty substance that protects nerves and aids in the quick transmission of signals between nerve cells.
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