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Brain Res. 1976 Sep 3;113(3):487-97.

Morphological evidence of alteration in myelinstructure with maturation.

Abstract

The periodicity of the myelin sheath in glutaraldehyde carbohydrazide (GACH) embedded tissues from three 10-day-old and two 43-day-old mice was investigated with the electron microscope. The mean repeat period and number of repeats per fiber was measured in 31-89 fibers in the trapezoid bodies, olfactory tract and sciatic nerves. The mean period of the myelin sheaths in both the peripheral and the central nervous systems of the 10-day-old mice (15.1 +/- 0.07 nm (S.E.M.) and 13.4 +/- 0.09 nm respectively) are smaller (rho less than 0.001) than those of the adult mice (15.9 +/- 0.08 nm and 14.7 +/- 0.06 nm respectively). These differences may be related to the known differences in chemical composition of immature and mature myelin.

PMID:
953750
DOI:
10.1016/0006-8993(76)90051-2
[Indexed for MEDLINE]

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