Selective and competitive urotensin-II (UT) receptor antagonist (pKB = 8.3). Blocks hU-II induced contractions in thoracic aorta ex vivo. Exhibits no effect on noradrenaline or endothelin 1-induced contraction or on acetylcholine-induced relaxation. Behav
Cyclobuxine D is a steroidal alkaloid extracted from Buxus microphylla. Cyclostatin D has obvious bradycardia effect on rat heart, and inhibits acetylcholine and Ba ++ induced longitudinal muscle contraction isolated from rabbit jejunum.
Dexloxiglumide, an active enantiomer of Loxiglumide, inhibits smooth muscle cell contractions induced by cholecystokinin-octapeptide (CCK-8). It is a selective antagonist of cholecystokinin type A (CCKA) receptors.
Acetylcholine perchlorate is the perchlorate salt of acetylcholine. Acetylcholine, an endogenous neurotransmitter at cholinergic synapses, could amplify the action potential of the sarcolemma following by inducing muscle contractions.