V2EX alpha-2 agonist

Alpha-2 Agonist

Definition 定义

α2受体激动剂:一类药物,能激活α2肾上腺素能受体,从而减少去甲肾上腺素释放、降低交感神经活性;常用于降压、镇静、镇痛辅助、戒断症状缓解等(具体适应证依药物而定,如可乐定、右美托咪定等)。

Pronunciation 发音(IPA)

/lf tu nst/

Examples 例句

Alpha-2 agonists can help lower blood pressure.
α2受体激动剂可以帮助降低血压。

In the ICU, an alpha-2 agonist may be chosen to provide sedation with less respiratory depression than some other sedatives.
在重症监护室(ICU),有时会选择α2受体激动剂用于镇静,因为与某些其他镇静药相比,它可能引起的呼吸抑制更少。

Etymology 词源

alpha-2 来自希腊字母 alpha(α),用于受体分类;2 表示 α受体的第二亚型(α2)agonist 源自希腊语 agōnistēs(“竞赛者/参与者”),在药理学中引申为“能与受体结合并激活其作用的物质”,合起来即“能激活α2受体的药物/物质”。

Related Words 关词汇

Literary Works 作品与文献中的用例

  • Goodman & Gilman’s The Pharmacological Basis of Therapeutics(《古德曼与吉尔曼:药理学治疗学基础》)
  • Katzung & Trevor’s Basic & Clinical Pharmacology(《卡宗:基础与临床药理学》)
  • Miller’s Anesthesia(《米勒麻醉学》)
  • Stoelting’s Pharmacology & Physiology in Anesthetic Practice(《斯托尔廷:麻醉实践中的药理与生理》)
  • Harrison’s Principles of Internal Medicine(《哈里森内科学》)
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