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Regul Pept. 1984 Sep;9(1-2):61-8.

Distribution of bombesin- and cholecystokinin-like immunoreactivity in rat and dog brain and gastrointestinal tract.

Abstract

Using a specific bombesin radioimmunoassay and an immunoassay for cholecystokinin which sees all C-terminal fractions, the distribution of bombesin-like (BLI) and cholecystokinin-like (CCK-LI) immunoreactivity in the brain and gastrointestinal tract of the rat and dog has been studied. Both peptides are found in the brain and gut but the rat contains more CCK and BLI than the dog; this is particularly noted in the stomach, colon and cerebral cortex whereas the small intestine of both species contains equivalent amounts of peptides. This contrasts with other comparative studies, mainly on nervous system CCK, which find no major distribution differences in man, monkey, pig and rat. This finding suggests that CCK-LI and BLI peptides may have a more predominant role in the rat than in the dog.

PMID:
6505291
[Indexed for MEDLINE]

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