Substance P-, met-enkephalin- and somatostatin-like immunoreactivity distribution in the frog spinal cord |
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Authors: | H P Lorez M Kemali |
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Institution: | 1. Department of Medicine, University of North Carolina, Chapel Hill, NC 27514 U.S.A.;2. Department of Biochemistry, St. Jude Children''s Research Hospital and the University of Tennessee Center for Health Sciences, Memphis, TN 38101 U.S.A. |
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Abstract: | The distribution of substance P-, Met-enkephalin- and somatostatin-like immunoreactivity was studied in the thoracic spinal cord of the frog using immunohistochemical techniques. In fibres, probably nerve terminals, immunoreactivity was greatest in the grey matter (mainly dorsal horn), but it was also present in white matter regions. While substance P- and, perhaps, somatostatin-like immunoreactivity appeared to be contained in primary afferents, the presence of all 3 peptides in neuronal cells of the grey matter indicates the existence of a propriospinal peptidergic system. |
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Keywords: | circadian rhythm drinking behavior monkey suprachiasmatic nuclei hypothalamic lesions |
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