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Topics related to "Conduction block by clonidine is not mediated by alpha2-adrenergic receptors"

adrenoceptor adrenoceptor
adrenoceptor (adrenoreceptor; adrenergic receptor) Any cell receptor that binds and is activated by the catecholamines adrenaline or noradrenaline. Adrenoceptors are therefore crucial in mediating the effects of catecholamines as neurotransmitters or hormones. There are two principal types of... Read more
Antagonist Antagonist
ANTAGONIST An antagonist is a drug that binds to a Receptor (i.e., it has affinity for the receptor binding site) but does not activate the receptor to produce a biological response (i.e., it possesses no intrinsic activity). Antagonists are also called receptor "blockers" because they block the... Read more
beta-blocker beta-blocker
beta-blocker or beta-adrenergic blocking agent , drug that reduces the symptoms connected with hypertension , cardiac arrhythmias , angina pectoris , migraine headaches, and other disorders related to the sympathetic nervous system . Beta-blockers also are sometimes given after heart... Read more
adrenergic adrenergic
adrenergic (ad-rĕ-ner-jik) adj. describing or relating to nerve fibres that release noradrenaline as a neurotransmitter. a. receptor (adrenoceptor) any of the receptors that are stimulated by noradrenaline and/or adrenaline, of which there are two types, alpha (α) and beta (β),... Read more
glutamate receptor glutamate receptor
glutamate receptor (GluR) Any receptor protein that binds the neurotransmitter glutamate as a ligand. Glutamate receptors fall into two main types: ionotropic glutamate receptors (iGluRs), which are ligand-gated ion channels, responsible for fast excitatory transmission; and metabotropic glutamate... Read more
Antidote Antidote
ANTIDOTE A medication or treatment that counteracts a poison or its effects. An antidote may work by reducing or blocking the absorption of a poison from the stomach. It might counteract its effects directly, as in taking something to neutralize an acid. Or an antidote might work by blocking a... Read more
ACE inhibitor ACE inhibitor
ACE inhibitor or angiotensin-converting enzyme inhibitor , drug used to reduce elevated blood pressure (see hypertension ), to treat congestive heart failure , and to alleviate strain on hearts damaged as a result of a heart attack (see infarction ). ACE inhibitors block production of an... Read more
sense sense
sense faculty by which external or internal stimuli are conveyed to the brain centers, where they are registered as sensations. Sensory reception occurs in higher animals through a process known as transduction, in which stimuli are converted into nerve impulses and relayed to the brain. The four... Read more
Agonist Agonist
AGONIST An agonist is a drug or an endogenous substance that binds to a Receptor (it has affinity for the receptor binding site) and produces a biological response (it possesses intrinsic activity). The binding of a drug agonist to the receptor produces an effect that mimics the physiological... Read more
receptor receptor
receptor 1. A cell or group of cells specialized to detect a particular stimulus and to initiate the transmission of impulses via the sensory nerves. The eyes, ears, nose, skin, and other sense organs all contain specific receptors responding to external stimuli (see exteroceptor); other receptors... Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

New agent offers 'conscious sedation' for ICU patients
Magazine article from: Drug Topics ...2 adrenergic receptor agonist delivered...the best known alpha2 adrenergic receptor agonist is donidine...to the alpha-2 receptor than clonidine. Studies supporting...patients with heart block or ...

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