期刊
NEUROSCIENCE LETTERS
卷 283, 期 2, 页码 97-100出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(00)00935-6
关键词
cocaine- and amphetamine-regulated transcript; superior cervical ganglion; paravertebral ganglia; prevertebral ganglia; chromaffin cells
资金
- NINDS NIH HHS [NS18710, NS39646] Funding Source: Medline
Distribution of cocaine- and amphetamine-regulated transcript-like immunoreactivity (CART-LI) was studied in the rat spinal cord, sympathetic ganglia and adrenal glands by immunohistochemical methods, utilizing a polyclonal antiserum raised against the CART peptide fragment 55-102. CART-LI was detected in nerve fibers and in basket-like terminals surrounding many postganglionic neurons of the superior cervical ganglion (SCG), stellate, paravertebral and prevertebral ganglia. Postganglionic neurons exhibited low or non-detectable levels of CART-LI. Surgical sectioning of the cervical sympathetic trunk for 6-7 days resulted in a nearly complete loss of CART-LI fibers and terminals in the SCG. In the adrenal gland, CART-LI nerve fibers formed a plexus underneath the capsule, some of which bifurcated and made a sharp turn toward the adrenal medulla, where clusters of chromaffin cells were intensely labeled. The detection of CART-LI in sympathetic ganglia and adrenal glands extends the previous observation of the presence of CART-LI in sympathetic preganglionic neurons and further supports the notion that CART peptide(s) may function as a signaling molecule in the sympatho-adrenal axis. (C) 2000 Elsevier Science Ireland Ltd. All rights reserved.
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