在大鼠的口服和直肠管理之间比较柏柏林的生物利用性
Nobuhiro Mori1, Keisuke Oda1, Hideki Takakura1
1Laboratory of Biopharmaceutics and Pharmacokinetics, Faculty of Pharmaceutical Sciences, Hiroshima International University.
Biological & pharmaceutical bulletin
|November 1, 2023
概括
与口服剂量相比,Berberine硫酸盐在老鼠中通过直肠给药显著提高了生物可用性. 这种直肠路由绕过了第一通代谢,改善了柏柏林的作用.
科学领域:
- 药理学 药理学是指药理学的学科.
- 药物输送系统 药物输送系统
- 药理动力学 药理动力学
背景情况:
- 柏柏林 (BBR) 由于广泛的第一通代谢,具有较低的口服生物利用性.
- 肠道和肝脏的第一通代谢显著限制了BBR的全身暴露.
- 为了克服这些药理动力学限制,需要采用替代的注射途径.
研究的目的:
- 评估贝贝林硫酸盐通过直肠给药的疗效,以提高生物可用性.
- 为了比较直肠注射BBR硫酸盐与口服和静脉注射途径的药理学特征.
- 评估直肠输送的潜力,以减轻BBR的第一通代谢.
主要方法:
- 柏柏林硫酸盐被静脉注射 (1毫克/公斤),口服 (10毫克/公斤) 和直肠 (1,3,10毫克/公斤) 给大鼠.
- 使用Witepsol® H15假药基的直肠配方.
- 血BBR度使用液态染色学-并联质谱法 (LC-MS/MS) 量化.
主要成果:
- 口服导致口服平均生物利用率为0.26%.
- 通过直肠给药的平均生物利用率显著提高:17.0% (1 mg/kg),24.3% (3 mg/kg) 和12.3% (10 mg/kg).
- 与口服方式相比,直肠输送显著改善了BBR的生物可用性.
结论:
- 伯贝林硫酸盐的直肠注射显著增加了BBR在老鼠中的生物可用性.
- 这种通过直肠路线增强的生物利用性归因于避免了显著的第一通代谢.
- 通过直肠输送BBR硫酸盐有望提高其在体内治疗功效.
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