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Capsiate is a capsaicin-like ingredient of a non-pungent cultivar of red pepper, CH-19 sweet. To elucidate the mechanisms underlying the non-pungency of capsiate, we investigated whether capsiate activates the cloned capsaicin receptor, TRPV1 (VR1). In patch-clamp experiments, capsiate was found to activate TRPV1 expressed transiently in HEK293 cells with a(More)
Novel vasoconstrictor peptides, endothelin-1 (ET-1) and endothelin-3 (ET-3), are also known as neuropeptides or neuromodulators. When either ET-1 or ET-3 was administered to the rat striatum via a microinjection needle, the dopamine release from the striatum dose-dependently increased. Pretreatment with a glutamate receptor blocker, glutamate diethyl ester(More)
UNLABELLED Aims/Introduction:  Oral ingestion of carbohydrate triggers secretion of glucagon-like peptide (GLP)-1, which inhibits the postprandial rise in blood glucose levels. However, the mechanism of carbohydrate-induced GLP-1 secretion from enteroendocrine L cells remains unclear. In the present study, GLP-1 secretion was examined by meal tolerance(More)
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