抑制曲马多对烟碱乙酰胆碱受体的影响在非洲爪蟾蜍肾上腺嗜铬细胞和卵母细胞表达α7受体。
文章的细节
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引用
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Shiraishi M,南城K, Uezono Y, Yanagihara N, Shigematsu,涩谷
抑制曲马多对烟碱乙酰胆碱受体的影响在非洲爪蟾蜍肾上腺嗜铬细胞和卵母细胞表达α7受体。
Br杂志。2002;136 (2):207 - 16。
- PubMed ID
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12010769 (在PubMed]
- 文摘
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1。曲马多用于临床用作止痛剂;然而,其镇痛作用的机制目前还不清楚。2。我们使用牛肾上腺嗜铬细胞研究曲马多对儿茶酚胺分泌的影响,nicotine-induced胞质钙浓度(2 +)((Ca(2 +))(我)增加,膜电流变化。我们也调查了曲马多对alpha7尼古丁乙酰胆碱受体(乙酰胆碱受体)表示,在非洲爪蟾蜍卵母细胞。3所示。曲马多concentration-dependently抑制carbachol-induced儿茶酚胺分泌到60%和27%的浓度控制的10和100 microM,分别,而它对藜芦定影响很小或高K(+)全身的儿茶酚胺分泌。4所示。曲马多也抑制nicotine-induced ((Ca(2 +))(我)增加浓度的方式。 Tramadol inhibited nicotine-induced inward currents, and the inhibition was unaffected by the opioid receptor antagonist naloxone. 5. Tramadol inhibited nicotinic currents carried by alpha7 receptors expressed in Xenopus oocytes. 6. Tramadol inhibited both alpha-bungarotoxin-sensitive and -insensitive nicotinic currents in bovine adrenal chromaffin cells. 7. In conclusion, tramadol inhibits catecholamine secretion partly by inhibiting nicotinic AChR functions in a naloxone-insensitive manner and alpha7 receptors are one of those inhibited by tramadol.
DrugBank数据引用了这篇文章
- 药物
- 药物靶点
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药物 目标 类 生物 药理作用 行动 曲马多 级别alpha - 7烟碱乙酰胆碱能受体亚基 蛋白质 人类 未知的拮抗剂细节