在老鼠中化物诱导的药物相互作用
Jingyu Zhang1, Weiwei Li1, Ying Liu1
1State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics (J.Z., W.L., Y.L., Y.H., Z.C., X.L., Y.C., A.Z., J.Z.), School of Pharmacy (J.Z., W.L., Y.L., Y.H., Z.C., X.L., Y.C., A.Z., J.Z.), Guizhou Medical University, Guiyang, Guizhou, P. R. China; State Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, School of Public Health, Guizhou Medical University, Guiyang, Guizhou, P. R. China (A.Z.); and Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, Liaoning, P. R. China (Y.P., J.Z.).
在大鼠中,亚急性化物暴露显著降低了药物吸收和内部药物暴露. 这种肠道损伤,而不是P450酶的变化,可能会降低同时服用药物的有效性.
科学领域:
- 药理学 药理学是指药理学的学科.
- 毒理学 毒理学 毒理学
- 药物新陈代谢 药物新陈代谢
背景情况:
- 在一些传统药物中发现的重金属化物对健康构成潜在的风险.
- 了解石对药物药理动学的影响,对于患者的安全至关重要.
研究的目的:
- 为了研究亚急性化物暴露对细胞染色体P450酶活性和药物药理动力学对大鼠的影响.
- 为了确定在化物暴露后改变药物行为背后的机制.
主要方法:
- 鼠被暴露在矿 (12毫克/公斤) 中30天.
- 药理动力学研究使用探针基质用于主要的细胞色素P450酶 (CYP1A,2C6,2C11,2D,2E,3A).
- 进行了体外 (微体化,化肠囊) 和体内 (周周推进) 试验.
主要成果:
- 对酸盐的暴露显著降低了探测器基板曲线下的面积 (AUC).
- 通过被动扩散和载体介导运输,药物的肠道吸收显著减少.
- 化物暴露降低了肠道周位推进率.
- 细胞染色体P450酶活动显示微小的变化.
结论:
- 亚急性化物暴露会损害肠道药物吸收,并减少整体药物暴露.
- 损害肠道功能,而不是直接抑制P450,是主要的机制.
- 由于药理动力学变化,暴露于矿可能会降低同时服用药物的疗效.
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