WordNet

a drug that neutralizes or counteracts the effects of another drug
a muscle that relaxes while another contracts; "when bending the elbow the triceps are the antagonist"
a cellular structure that is postulated to exist in order to mediate between a chemical agent that acts on nervous tissue and the physiological response
drug that has the effects of epinephrine (同)adrenergic_drug
relating to epinephrine (its release or action) (同)sympathomimetic

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1. 原発性（本態性）高血圧における薬物療法の選択：推奨 choice of drug therapy in primary essential hypertension recommendations
2. 前立腺肥大症の内科的治療 medical treatment of benign prostatic hyperplasia
3. 男性における下部尿路症状 lower urinary tract symptoms in men
4. Anesthesia for the adult with pheochromocytoma
5. 降圧剤と脂質 antihypertensive drugs and lipids

Park Soo-Hyun,Sim Yun-Beom,Kang Yu-Jung,Kim Sung-Su,Kim Chea-Ha,Kim Su-Jin,Lim Su-Min,Suh Hong-Won
Biological and Pharmaceutical Bulletin 36(6), 925-930, 2013
… Intraperitoneal (i.p.) pretreatment with naloxone (an opioid receptor antagonist) attenuated antinociceptive effect induced by coumarin in the writhing test. … However, methysergide (a 5-HT serotonergic receptor antagonist) or yohimbine (an α2-adrenergic receptor antagonist) did not affect antinociception induced by coumarin in the writhing test. …
NAID 130003361436

Influence of Lipid Composition on the Structural Stability of G-Protein Coupled Receptor

Mahmood Md. Iqbal,Liu Xinli,Neya Saburo,Hoshino Tyuji
Chemical and Pharmaceutical Bulletin 61(4), 426-437, 2013
… β2 Adrenergic receptor (β2AR) is a kind of G-protein coupled receptors (GPCRs) which transduce a wide range of extracellular signals into intracellular messages responsible for the regulation of diverse cell functions. … In this work, we address the influence of lipid composition on the structural stability of GPCR, performing molecular dynamics simulations of three kinds of states: apo-, and agonist epinephrine-, or antagonist alprenolol-bound β2AR. …
NAID 130003360753

Fujiwara Hiroki,Hashikawa-Hobara Narumi,Wake Yoshihiro [他],TAKATORI Shingo,GODA Mitsuhiro,HIGUCHI Hiroshi,ZAMAMI Yoshito,TANGSUCHARIT Panot,KAWASAKI Hiromu
Journal of pharmacological sciences 119(3), 260-270, 2012-07-20
… Rat mesenteric arteries were maintained by both adrenergic vasoconstrictor nerves and calcitonin gene–related peptide (CGRP) vasodilator nerves. … PNS-induced vasoconstriction was abolished by tetrodotoxin (neurotoxin) and guanethidine (adrenergic neuron blocker) and blunted by prazosin (<I>α</I><SUB>1</SUB>-adrenoceptor antagonist). …
NAID 10030987011