| 释义 |
catecholamine, n. Biochem.|kætɪˈkəʊləmiːn, -ˈkɒl-|
Also catechol amine.
[f. catechol n. + amine n.]
Any amine derived from catechol, esp. one of the naturally-occurring compounds of this type, many of which act as neurotransmitters or hormones.
1951Acta Physiol. Scand. XXIV. Suppl. lxxxv. 9 The extract thus obtained..could be used for chromatography and for colorimetric determinations of the catechol amines. 1956Lancet 11 Aug. 283/1 A further step was necessary to separate the catecholamine fraction. 1968Passmore & Robson Compan. Med. Stud. I. xxv. 29/1 Release of catecholamines from the medulla follows such stimuli as pain, emotional disturbances, hypotension, asphyxia, hypoglycaemia, exposure to severe cold and muscular exertion. 1973Times 19 Mar. 3/2 Later studies revealed there was a mixture of two hormones. The second compound was noradrenalin, and the two substances were collectively named catecholamines. 1981G. Winokur Depression ix. 89 The catecholamine hypothesis is concerned with the metabolism of..tyrosine. 1987Economist 13 June 101/1 Scientists guessed that depression was caused by a lack of catecholamines.
Add: Hence cateˌcholamiˈnergic a. [after adrenergic, cholinergic adjs.], liberating or stimulated by a catecholamine.
1970European Jrnl. Pharmacol. X. 178 (heading) Disposition of newly synthesized amines in cell bodies and terminals of central catecholaminergic neurons. 1990Jrnl. Neuroendocrinol. II. 830/2, 2-Hydroxyestradiol..is known to bind to catecholaminergic receptors. |