Search results
1 lut 1995 · The present study shows that cardiac β 2-receptors to a clear extent contribute to the heart rate responses to endogenous circulating catecholamines but less to inotropic responses.
In this study, we evaluated the role of vascular β1 vs. β2 receptors in coronary exercise hyperemia in a single-blind, randomized, crossover study in healthy men. In response to isometric handgrip exercise, blood flow velocity in the left anterior descending coronary artery was significantly greater with esmolol compared with propranolol.
21 wrz 2022 · Epinephrine (Epi or adrenalin) is synthesized, stored, and released by the adrenal medulla (chromaffin cells) and impacts the heart via the circulation. NE and Epi bind to adrenergic receptors (α-AR and β-AR) on cardiac myocytes to produce functional responses (Fig. 1).
1 sty 2021 · In the cardiovascular system, the activation of adrenoceptors increases heart muscle contraction, cardiac output and heart rate. Some studies also suggested a cardioprotective role of the...
Selective beta-2 agonists include salbutamol, terbutaline, and salmeterol. Beta-2 adrenoceptors are implicated in diverse physiological functions in the body, especially in the pulmonary system and cardiovascular systems.
In the cardiovascular system, the activation of adrenoceptors increases heart muscle contraction, cardiac output and heart rate. Some studies also suggested a cardioprotective role of the stimulation of adrenoceptors.
30 sty 2012 · We have made three major discoveries, including (1) dual coupling of β 2 AR to G s and G i proteins in cardiomyocytes, (2) cardioprotection by β 2 AR signaling in improving cardiac...
