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中国临床药理学与治疗学 ›› 2012, Vol. 17 ›› Issue (6): 639-643.

• 基础研究 • 上一篇    下一篇

使用外源性标记法研究氯高铁血红素在大鼠体内的铁吸收

赵娣1, 张永杰1, 唐明清2, 陈西敬1   

  1. 1中国药科大学药代研究中心,南京 210009,江苏,
    2新疆科丽生物技术有限公司,乌鲁木齐 830000,新疆
  • 收稿日期:2012-04-20 修回日期:2012-05-20 出版日期:2012-06-26 发布日期:2012-06-25
  • 通讯作者: 陈西敬,男,教授,研究方向:药物代谢动力学。Tel: 025-83271286 E-mail: chenxj@jlonline.com
  • 作者简介:赵娣,女,博士研究生,研究方向:药物代谢动力学。Tel: 025-86185379 E-mail: zhaodihehe@126.com
  • 基金资助:
    新疆维吾尔族自治区科技计划项目(201110103)

Absorption of 58iron originating from hemin in rat using extrinsically label method

ZHAO Di1, ZHANG Yong-jie1, TANG Ming-qing2, CHEN Xi-jing1   

  1. 1China Pharmaceutical University, Center of Drug Metabolism and Pharmacokinetics, Nanjing 210009, Jiangsu, China;
    2Xinjiang Keli Biology Technology Co., Ltd., Urumchi 830000, Xinjiang, China
  • Received:2012-04-20 Revised:2012-05-20 Online:2012-06-26 Published:2012-06-25

摘要: 目的: 使用外源性标记法研究氯高铁血红素在大鼠体内的铁吸收。方法:58Fe 标记的氯高铁血红素分别以 40 mg/kg 和 2 mg/kg 的剂量灌胃和静脉注射给予大鼠,并在其给药前和给药后系列时间点采样,用电感耦合等离子体质谱仪(ICP-MS)法测定各个时间点58Fe的血药浓度,测得的血药浓度通过DAS2.1.1 求算药动学参数。用58Fe的绝对生物利用度评价氯高铁血红素在大鼠体内的铁吸收。结果: 源于氯高铁血红素中的58Fe在灌胃给药后 1.5 h 吸收达峰,峰浓度为(220±89) μg/L,在此剂量下源于氯高铁血红素中的58Fe绝对生物利用度为 0.93%。结论: 外源性标记法可以用于评价氯高铁血红素在大鼠体内的铁吸收,源于氯高铁血红素的58Fe绝对生物利用度为 0.93%。

关键词: 铁吸收, 氯高铁血红素, ICP-MS, 58Fe

Abstract: AIM: To evaluate the pharmacokinetic characteristics and bioavailability of 58iron originating from hemin in rats. METHODS: A rapid, sensitive and specific method with inductively coupled plasma mass spectrometry (ICP-MS) has been developed for the determination of 58iron in bio-samples. The study was performed in male rats at a single dose of 40 mg/kg and 2 mg/kg separately by oral administration and intravenous injection. Pharmacokinetic parameters were calculated by non-compartmental method using DAS 2.1.1 program and the dose of 58iron was used in the calculation of these parameters. RESULTS: Results showed that 58iron originating from hemin was poorly absorbed and the absolutely bioavailability was 0.93%. Plasma concentrations of 58iron reached the peak at 1.5 h following oral administration to rats and the peak concentration was (220±89) μg/L. CONCLUSION: This research successfully investigated the pharmacokinetic characteristics of 58iron originating from hemin using extrinsically label method and the absolutely bioavailability was evaluated.

Key words: Iron absorption, Hemin, ICP-MS, 58Fe

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