guinea pig 5-ht1d receptor

Pradigastat (LCQ-908) is an orally active, potent and selective diacylglycerol acyltransferase 1 (DGAT1) inhibitor for the treatment of constipation, which may be used in the study of obesity and diabetes.

RS 67333 hydrochloride (RO5203648) is a potent, selective partial agonist of the 5-HT4 receptor (5-HT4R) with a pKi value of 8.7 in guinea-pig striatum. It demonstrates lower binding affinities for other receptors, including 5-HT1A, 5-HT1D, 5-HT2A, 5-HT2C, dopamine D1 and D2, and muscarinic M1-M3 receptors. Notably, RS 67333 hydrochloride exhibits neuroprotective properties, rendering it useful in Alzheimer's disease research.

AR-A 2 is a selective 5-HT1B receptor antagonist with high affinity to guinea pig cortex 5-HT1B 1D and recombinant guinea pig 5-HT1B receptors (Ki: 0.24 and 0.47 nM), exhibiting a 10-fold lower affinity to guinea pig 5-HT1D receptor (Ki: 5 nM).