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  • Title: Neurotropism to tissue specificity in nerve regeneration. Experimental study on sciatic nerves of rat.
    Author: Zhao Q, Lu SB, Shang JA, Wang JF.
    Journal: Chin Med J (Engl); 1989 Dec; 102(12):926-30. PubMed ID: 2517738.
    Abstract:
    Using the left sciatic nerves of 44 rats we studied neurotropism in nerve regeneration. The proximal and distal cut ends of the nerves were separately introduced into the ends of a specially designed silastic Y- or cross-shaped tube. Either the distal stump or a cut end of the Achilles tendon was inserted into the other ends of the tube, or was left empty. The distance between the tissue ends, nerve-to-nerve or nerve-to-tendon, was 4 mm. Four weeks later, neurofibers sprung out from the proximal stump and grew towards the distal nerve end instead of the tendon end or the vacant channel of the tube. This finding suggests that neurotropic factors may influence the direction of growth of the newly formed neurofibers. This paper discusses the mechanism of neurotropism, the effect of the distance between the cut ends of the nerve, and the choice of the silastic material.
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