Electron microscopic examination of the myelinated axons of corpus callosum in perfused young and old rats.
In this study, the myelinated axons of parts of the corpus callosums of young and old rats were examined under the electron microscope and a grading system was performed for quantitating the ultrastructural pathological changes of these axons. Except the old splenium group, the only ultrastructural pathological change, observed in the myelinated axons was the separation in myelin configuration. In addition to this finding, in the old splenium group, in some of the myelinated axons, an interruption was observed in the myelin configuration. Additionally, these ultrastructural pathological findings were present in the larger sized myelinated axons of the corpus callosum.
Sargon
Mustafa F
MF
Department of Anatomy Faculty of Medicine, Hacettepe University, Ankara, Turkey. mfsargon@hacettepe.edu.tr
Denk
C Cem
CC
Celik
H Hamdi
HH
Surucu
H Selcuk
HS
Aldur
M Mustafa
MM
D000375:Aging / Q000473:pathology*; D000818:Animals; D001369:Axons / Q000145:classification / Q000473:pathology / Q000648:ultrastructure*; D003337:Corpus Callosum / Q000473:pathology / Q000648:ultrastructure*; D008297:Male; D008854:Microscopy, Electron; D009413:Nerve Fibers, Myelinated / Q000473:pathology / Q000648:ultrastructure*; D051381:Rats; D017207:Rats, Sprague-Dawley