There are numerous classes of medications used to treat high blood pressure; they include diuretics, angiotensin-converting enzyme inhibitors (ACEIs), angiotensin receptor blockers (ARBs), calcium channel blockers (CCBs), beta-receptor
blockers, and alpha-receptor blockers.
activity and cyclic AMP metabolism in vascular smooth muscle; variations with age.
Among specific topics are autonomic pharmacology and stress, beta-receptor
antagonists (beta-blockers), psychotherapeutic agents, analgesic and anti-inflammatory drugs, dietary supplements, and performance-enhancing substances.
Racepinephrine is an alpha- and beta-receptor
stimulant that works by widening the air passage and making it easier to breathe.
The new study unveiled an elegant intracellular signalling system in which beta-receptor
activation modulates alpha-adrenergic signaling.
Glucocorticoids enhance beta-receptor
stimulation by increasing the number and availability of beta receptors on the cell surfaces and by increasing affinity of the receptor for beta agonists.
, atheroma and cardiovascular damage.
(3) Beta blockers prevent the flow of adrenalin to the beta-receptor
sites in the autonomic nervous system.
"Although further investigation is required to examine the mechanism of action of propranolol in curing aphthous ulcers, our working hypothesis is that beta-receptor
inhibition may be crucial in alleviating one of the most important predisposing factors, namely stress," he said.
In patients with obstructive lung disease and cardiac arrhythmia, bronchodilating agents such as beta-receptor
agonists or theophylline preparations have been reported to induce supraventricular tachyarrhythmias (23,24).