| 单词 | beta-blocker |
| 释义 | > as lemmasbeta-blocker i. beta receptor (Physiology), one of two categories of adrenergic receptor on organs innervated by sympathetic nerves, which when stimulated increases cardiac action and blood flow and relaxes smooth muscle; beta-blocker (Pharmacology), a drug that prevents the stimulation of beta receptors; so beta-blocking adj. ΘΚΠ the world > life > the body > nervous system > substance of nervous system > [noun] > adrenergic receptor > specific beta receptor1948 the world > health and disease > healing > medicines or physic > medicines for specific purpose > preparations for treating specific parts > [adjective] > for the heart cardiacal1620 cardiac1655 cardiotonic1866 beta-blocking1948 the world > health and disease > healing > medicines or physic > medicines for specific purpose > preparations for treating specific parts > [noun] > for the heart > specific drugs khellin1879 procainamide1950 pronethalol1963 propranolol1964 alprenolol1967 verapamil1967 oxprenolol1968 sotalol1968 perhexiline1969 practolol1969 beta-blocker1970 pindolol1971 acebutolol1972 mexiletine1973 atenolol1974 metoprolol1974 labetalol1975 propafenone1975 amrinone1977 1948 R. P. Ahlquist in Amer. Jrnl. Physiol. 153 596 One type of [adrenotropic] receptor is associated with most of the excitatory functions and with at least one of the inhibitory functions (intestine). The other type is associated with most of the inhibitory functions and with one..excitatory function (myocardium)... Because of the opposite effects..the customary signs, E (excitatory) and I (inhibitory) cannot be applied. Therefore, for convenience they have been designated as the alpha adrenotropic receptors and the beta receptors. 1965 J. H. Burn Lect. Notes Pharmacol. (ed. 8) 8 The β-blocking agents are those which prevent adrenaline from causing relaxation in smooth muscle. 1970 Biol. Abstr. 51 96372 Beta blockers exert a powerful physiological effect primarily on the cardiovascular system. 1977 South China Morning Post (Hong Kong) 22 July 16/4 We're hoping that beta blockers will calm performers without taking the edge off their performance. 1983 D. J. Weatherall et al. Oxf. Textbk. Med. II. xiii. 64 Inhibition of the beta receptor in bronchial smooth muscle is likely to produce a significant increase in airways resistance in asthmatic subjects. 1983 D. J. Weatherall et al. Oxf. Textbk. Med. II. xiii. 66/1 Beta-blocking agents may produce depression and other central nervous system side-effects, such as sleep-disturbances, insomnia, and nightmares. 1986 Here's Health Dec. 28/3 With the advent of calcium channel blockers advertising has mentioned side-effects from beta blockers which were never mentioned during their peak of acceptability. < as lemmas |
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