1.   And severed nerves in the central nervous system do begin to sprout new fibers, although they fail to make the needed connections.

2.   A severed nerve means the message does not make it to the brain.

3.   Scientists might attempt to use a netrin-like drug to foster the regeneration of severed nerves, for example.

4.   Using delicate microsurgery, Cheng sewed a bridge of slender nerve cells across the gap, to guide the severed nerves in their attempt to regenerate.

5.   Very recent research has demonstrated that if these inhibitory proteins are blocked, severed nerves can regrow, and that adding certain growth factors fosters that regeneration.

6.   Victims have lost their eyesight during plastic surgery or suffered from severed nerves while undergoing chin surgery.