Journal of Lipid Research, Vol. 8, 569-576, November 1967
Copyright © 1967 by Lipid Research, Inc.

Composition of myelin from peripheral and central nervous systems of the squirrel monkey

L. A. Horrocks

Laboratory of Neurochemistry, Cleveland Psychiatric Institute, Cleveland, Ohio 44109

Myelin was prepared from the brachial plexus and cervical spinal cord of adult squirrel monkeys (Saimiri sciureus). Brachial plexus myelin contained a larger amount of sphingomyelin and smaller amounts of cholesterol, lipid galactose, ethanolamine phosphoglyceride, choline phosphoglyceride, and alk-1-enyl ether than spinal cord myelin when compared as ratios to total lipid phosphorus. The peripheral nervous system myelin had a higher proportion of protein. All of these differences were statistically significant.

Thus peripheral nervous system myelin and central nervous system myelin differ in protein content and lipid composition in this subhuman primate.

Supplementary key words myelin • nervous system • peripheral • central • squirrel monkey • electron microscopy • lipid composition • proteolipid protein

Submitted on September 28, 1966
Accepted on July 5, 1967

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