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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (9): 1069-1072.

• 研究原著 • 上一篇    下一篇

次枸橼酸铋钾胃粘膜保护作用机制研究

高利忠1, 陈丁丁, 巢杰, 丁强军   

  1. 中国药科大学药理研究室, 南京 210009, 江苏;
    1南京宝生药业有限公司, 南京 210036, 江苏
  • 收稿日期:2006-05-16 修回日期:2006-06-28 出版日期:2006-09-26 发布日期:2020-11-05
  • 作者简介:高利忠, 本科, 研究方向:心血管药理。Tel:13913851878  E-mail:glz@cpu.edu.cn;陈丁丁, 副教授, 研究方向:心血管药理。Tel:025-83271264  E-mai l:chdd@cpu.edu.cn

Protective properties of colloidal bismuth subcitrate on gastric mucosa

GAO Li-zhong1, CHEN Ding-ding, CHAO Jie, DING Qiang-jun   

  1. Research Division of Pharmacology, China Pharmaceutical University , Nanjing 210009 , Jiangsu, China;
    1Nanjing Besson Pharmacutical Co.Ltd, Nanjing 210036, Jiangsu, China
  • Received:2006-05-16 Revised:2006-06-28 Online:2006-09-26 Published:2020-11-05

摘要: 目的 探讨次枸橼酸铋钾(CBS) 抗溃疡作用与CBS 对胃粘膜中一氧化氮(NO) 含量和一氧化氮合酶(NOS) 活力影响之间的关系。方法 无水乙醇诱发大鼠粘膜损伤性胃溃疡;CBS 进行治疗;联苯胺荧光分光光度法测定NO 含量和NOS 活力。结果 CBS 灌胃给药显著降低溃疡面积, 并使异常升高的诱生型NOS(iNOS) 活力和NO 含量显著降低, 并恢复到正常水平。CBS 腹腔给药可显著降低胃粘膜NO 含量和iNOS 活力, 升高原生型NOS(cNOS) 活力。体外CBS 可抑制NOS 活力。结论 CBS 胃粘膜保护作用机制可能与其降低胃粘膜中异常升高的NO 含量和iNOS 活力有关。

关键词: 次枸橼酸铋钾, 一氧化氮, 诱生型一氧化氮合酶, 原生型一氧化氮合酶, 胃溃疡

Abstract: AIM: Explore the relationshipbetween the protection of CBS on gastric mucosa and the effect of CBS on gastric mucosal NO content and NOS activity.METHODS: The mucosal injury was induced by ethanol n rat and then treated with CBS.NO content and NOS activity were determined by benzidine-fluorescence spectrophotometer.RESULTS: CBS was applied intragastricly, which significantly reduced the area of gastric ulcer and inhibit iNOS activity.As a result, the NO level was reduced to normal.When CBS was applied intraperitoneally,the NO level of gastric mucosa as well as iNOS activity was reduced, and cNOS activity was increased.In Vitro experiment showed that CBS inhibited NOS activity significantly.CONCLUSION: CBS inhibits the increased iNOS activity and NO level, which may be an underlying biochemical mechanism for its protective on gastric mucosa.

Key words: colloidal bismuth subcitrate, NO, iNOS, cNOS, gastric ulcer

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