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In Wikidata. Alpha-adrenergic agonists are a class of sympathomimetic agents that selectively stimulates alpha adrenergic receptors. The alpha-adrenergic receptor has two subclasses α 1 and α 2. Alpha 2 receptors are associated with sympatholytic properties. Alpha-adrenergic agonists have the opposite function of alpha blockers.
The alpha-2 (α2) adrenergic receptor (or adrenoceptor) is a G protein-coupled receptor (GPCR) associated with the G i heterotrimeric G-protein. It consists of three highly homologous subtypes, including α 2A -, α 2B -, and α 2C -adrenergic. Some species other than humans express a fourth α 2D -adrenergic receptor as well. [1]
Alpha-2 blockers (or α2 blockers) are a subset of the alpha blocker class of drugs and are antagonists to the α 2 adrenergic receptor. They are mainly used in research, having found limited clinical application in human medicine. They are extensively used in veterinary medicine to reverse the effects of alpha-2 agonist drugs used as sedatives ...
Adrenergic agonist. An adrenergic agonist is a drug that stimulates a response from the adrenergic receptors. The five main categories of adrenergic receptors are: α 1, α 2, β 1, β 2, and β 3, although there are more subtypes, and agonists vary in specificity between these receptors, and may be classified respectively.
The adrenergic receptors or adrenoceptors are a class of G protein-coupled receptors that are targets of many catecholamines like norepinephrine (noradrenaline) and epinephrine (adrenaline) produced by the body, but also many medications like beta blockers, beta-2 (β 2) agonists and alpha-2 (α 2) agonists, which are used to treat high blood ...
The alpha-2 blocker acts on alpha-2 receptors. The alpha-2 receptor is a G-protein coupled receptor as well, which exert its action by Gi function, leading to an inhibition of adenylyl cyclase and thus reducing synthesis of cAMP. [3] It lowers the amount of calcium inside the cell. [3]
Clonidine. Clonidine, sold under the brand name Catapres among others, is an α 2A -adrenergic agonist [12] medication used to treat high blood pressure, ADHD, drug withdrawal (alcohol, opioids, or nicotine), menopausal flushing, diarrhea, spasticity, and certain pain conditions. [13]
150 11551 Ensembl ENSG00000150594 ENSMUSG00000033717 UniProt P08913 Q01338 RefSeq (mRNA) NM_000681 NM_007417 RefSeq (protein) NP_000672 NP_031443 Location (UCSC) Chr 10: 111.08 – 111.08 Mb Chr 19: 54.03 – 54.04 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse The alpha-2A adrenergic receptor (α 2A adrenoceptor), also known as ADRA2A, is an α 2 adrenergic receptor, and also ...