Immunohistochemical mapping of enkephalins, NPY, CGRP, and GRP in the cat amygdala

This immunohistochemical study shows a wide distribution of neuropeptides in the cat amygdala. Neuropeptide Y is present along the whole amygdaloid complex, and fibers and cell bodies containing neuropeptide Y are observed in all the nuclei studied. Leucine-enkephalin-, gastrin-releasing peptide/bom...

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Bibliographic Details
Published in:Peptides (New York, N.Y. : 1980) N.Y. : 1980), 1999-01, Vol.20 (5), p.635-644
Main Authors: Marcos, P, Coveñas, R, Narváez, J.A, Diaz–Cabiale, Z, Aguirre, J.A, Tramu, G, González–Barón, S
Format: Article
Language:English
Subjects:
Amygdala
Amygdala - anatomy & histology
Amygdala - chemistry
Animals
Calcitonin Gene-Related Peptide - isolation & purification
Cat
Cats
CGRP
Enkephalins
Enkephalins - isolation & purification
Gastrin-Releasing Peptide - isolation & purification
GRP
Immunohistochemistry
Male
Neuropeptide Y - isolation & purification
NPY
Tissue Distribution
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Summary:This immunohistochemical study shows a wide distribution of neuropeptides in the cat amygdala. Neuropeptide Y is present along the whole amygdaloid complex, and fibers and cell bodies containing neuropeptide Y are observed in all the nuclei studied. Leucine-enkephalin-, gastrin-releasing peptide/bombesin-, and calcitonin gene-related peptide-immunoreactive fibers and perikarya are observed only in discrete nuclei of the amygdaloid complex, whereas only fibers -but no cell bodies- containing methionine-enkephalin-Arg 6-Gly 7-Leu 8 have been observed. No immunoreactivity has been found for γ-melanocyte-stimulating hormone, dynorphin A (1–17), or galanin. These data are compared with those reported in the amygdala of other mammals.
ISSN:0196-9781
1873-5169
DOI:10.1016/S0196-9781(99)00018-2