Intrinsic vasoactive intestinal polypeptide (VIP)-containing neurons in the baroreceptor nucleus of the solitary tract in rat |
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| Authors: | M. Palkovits, Cs. L r nth, L.E. Eiden, W. Rotsztejn,T.H. Williams |
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| Affiliation: | 1. Laboratory of Clinical Sciences, NIMH, NIH, Bldg. 10, Rm. 2D47, Bethesda, MD 20205 USA;2. First Department of Anatomy, Semmelweis University Med. School, 1450 Budapest Hungary;3. The Rockefeller University, New York, NY 10021 USA;4. Department of Anatomy, University of Iowa, College of Med., Iowa City, IO 52242 U.S.A. |
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| Abstract: | Vasoactive intestinal polypeptide (VIP)-immunoreactive cell bodies, dendrites and nerve terminals in the nucleus of the solitary tract have been identified with electron microscopic immunocytochemistry in rats. The relatively high concentration of VIP in this nucleus, which corresponds to the primary baroreceptor center, was depleted only insignificantly by uni- or bilateral transection of the solitary tract, which eliminates peripheral neuronal (via glossopharyngeal and vagal nerves) input to the nucleus. Both immunocytochemical and biochemical data suggest that the majority of VIP in the nucleus of the solitary tract is present in intrinsic neurons. |
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| Keywords: | vasoactive intestinal polypeptide electron microscopic immunocytochemistry nucleus of the solitary tract |
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