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Neuromedin U-like Immunoreactivity in Rat Intestine: Regional Distribution and Immunohistochemical Study

Neuromedin U-like Immunoreactivity in Rat Intestine: Regional Distribution and Immunohistochemical Study

M Honzawa, T Sudoh, N Minamino, K Kangawa, H Matsuo

Neuropeptides. 1990 Jan;15(1):1-9.

PMID: 2325835

Abstract:

Neuromedin U-25 and its C-terminal octapeptide, neuromedin U-8 are related peptides originally identified in porcine brain which elicit potent uterus stimulant activity. Radioimmunoassay using an antiserum raised against porcine neuromedin U-8, indicated that neuromedin U-like immunoreactivity in the rat was far more abundant in the small intestine than the brain. Neuromedin U in the rat is a single, a 23 amino acid peptide (2, 17). Rat neuromedin U has the same 7 residues on its C-terminus as porcine neuromedin U, and the antiserum against porcine neuromedin U-8 is 100% crossreactive with rat neuromedin U. Immunohistochemical analyses using this antiserum revealed that neuromedin U-immunoreactive structures in rat intestine were confined to the enteric nervous system, implying that neuromedin U may be involved in neuronal regulation of gut function.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP98395767	Neuromedin U-25 porcine		98395-76-7	Price

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