Adrenergic Receptor
The adrenergic receptors (or adrenoceptors) are a class of G protein-coupled receptors that are targets of the catecholamines, especially norepinephrine (noradrenaline) and epinephrine (adrenaline). Epinephrine (adrenaline) reacts with both α- and β-adrenoreceptors, causing vasoconstriction and vasodilation, respectively. High levels of circulating epinephrine cause vasoconstriction. At lower levels of circulating epinephrine, β-adrenoreceptor stimulation dominates, producing vasodilation followed by decrease of peripheral vascular resistance.
Many cells possess these receptors, and the binding of a catecholamine to the receptor will generally stimulate the sympathetic nervous system. The sympathetic nervous system is responsible for the fight-or-flight response, which includes dilating the pupils, increasing heart rate, mobilizing energy, and diverting blood flow from non-essential organs to skeletal muscle.
-
Phenoxybenzamine hydrochloride是非特异性的不可逆的α肾上腺素受体长效拮抗剂。
More
-
Betaxolol hydrochloride是β1肾上腺素受体阻断剂,可作用于高血压和青光眼。
More
-
Maprotiline盐酸盐是去甲肾上腺素重吸收抑制剂,为四环抗抑郁化合物(TeCA)。
More
-
Acebutolol HCl是beta-adrenergic receptors(β-肾上腺素能受体)拮抗剂,用于治疗高血压,心绞痛,和心律失常。
More
-
Guanabenz醋酸盐是α2肾上腺素激动剂,可作用于高血压。
More
-
Phenoxybenzamine hydrochloride是非特异性的不可逆的α肾上腺素受体长效拮抗剂。
More
-
Betaxolol hydrochloride是β1肾上腺素受体阻断剂,可作用于高血压和青光眼。
More
-
Maprotiline盐酸盐是去甲肾上腺素重吸收抑制剂,为四环抗抑郁化合物(TeCA)。
More
-
Acebutolol HCl是beta-adrenergic receptors(β-肾上腺素能受体)拮抗剂,用于治疗高血压,心绞痛,和心律失常。
More
-
Guanabenz醋酸盐是α2肾上腺素激动剂,可作用于高血压。
More