The enigma of myelin-associated growth inhibitors in spontaneously regenerating nervous systems.

Abstract:

:Recent results shed new light on how some nervous systems can regenerate after injury while others cannot. Until recently, it was widely believed that the main difference between systems that regenerate and those that do not lies in the normal state of their permissiveness to the regenerating axons. Thus, while nonregenerative systems, such as the rat optic nerve, were shown to contain myelin-associated growth inhibitors, regenerative systems, such as the fish optic nerve, were thought to have no such inhibitors. However, it has now been demonstrated that spontaneously regenerating systems do contain growth inhibitors, though their levels seem to be lower than in nonregenerative systems. The main difference, however, appears to reside in the system's response to injury. This article discusses the involvement of myelin-associated growth inhibitors in the spontaneously regenerating nervous system of fish, traces the apparent discrepancy, and shows how it has been resolved recently.

journal_name

Trends Neurosci

journal_title

Trends in neurosciences

authors

Sivron T,Schwartz M

doi

10.1016/0166-2236(94)90056-6

subject

Has Abstract

pub_date

1994-07-01 00:00:00

pages

277-81

issue

7

eissn

0166-2236

issn

1878-108X

pii

0166-2236(94)90056-6

journal_volume

17

pub_type

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