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Brain Research, 261 (1983) 151-154 151 Elsevier Biomedical Press
 

Summary: Brain Research, 261 (1983) 151-154 151
Elsevier Biomedical Press
Catecholamine varicosiUes in cat dorsal root ganglion and
spinal ventral roots
RICHARD T. STEVENS, CHARLES J. HODGE Jr. and A. VANIA APKARIAN
Weiskotten Hall Upstate Medical Center, 750 East A dams Street, Syracuse, N Y 13210 (U.S.A.)
(Accepted October 26th, 1982)
Key words: catecholamine - dorsal root ganglion - ventral root
Catecholamine (CA) varicosities have been observed within the dorsal root ganglion and spinal ventral roots of the cat at all
spinal levels. There was no apparent change in either appearance or numbers of these CA varicosities following spinal tran-
section or distal spinal root lesion. It is suggested that the source of CA innervation of these areas is sympathetic accompanying
transdural blood vessels.
Catecholamine fibers have been described at
all spinal cord levels throughout the dorsal and
ventral grey mattert6. The primary source of
these catecholamine (CA) fibers has been shown
to be suprasegmental brain stem nuclei6.~H3.
Catecholamine fibers have also been described
within the ventral roots (VR) and dorsal root
ganglia (DRG)5.16 as well as in cranial gan-

  

Source: Apkarian, A. Vania - Department of Physiology, Northwestern University

 

Collections: Biology and Medicine