在过纸上的干血斑点中,亚泽帕姆的II期代谢物的稳定性
Lele Wang1, Xuezhi Wang2, Wenyue Li3
1School of Forensic Medicine, Shanxi Medical University, Jinzhong 030600, Shanxi, China; Key Laboratory of Forensic Medicine in Shanxi Province, Jinzhong 030600, Shanxi, China; Key Laboratory of Forensic Toxicology of Ministry of Public Security, Jinzhong 030600, Shanxi, China.
Journal of pharmaceutical and biomedical analysis
|December 29, 2023
概括
迪亚泽帕姆 (Diazepam) 是一种药物.
科学领域:
- 法医毒理学 法医毒理学
- 药理动力学 药理动力学
背景情况:
- 二期代谢物在与泽相关的病例中至关重要.
- 干血斑 (DBS) 是采样的一种微创方法.
研究的目的:
- 为了评估在干燥的血斑中diazepam的II期代谢产物 (temazepam glucuronide和oxazepam glucuronide) 的稳定性.
- 为了确定含有这些代谢物的DBS样品的最佳储存条件和时间框架.
主要方法:
- 在过纸上发现了来自于diazepam的全血样本.
- 样品被存储在各种温度条件下 (20°C,4°C,-20°C) 有或没有化.
- 使用HPLC-MS/MS在不同的时间点分析代谢物度,长达1.5年.
主要成果:
- 在20°C下,Temazepam糖化物在16天内保持稳定,但在5天后在较低的温度下显著降解.
- 奥克萨泽糖化物在5天后表现出不稳定性,在61天后完全降解.
- 在35天和1.5年后,观察到temazepam糖酸的显著波动和增加.
结论:
- 用于分析亚兹帕姆代谢物质的干血斑最好在20°C下保存长达16天.
- 建议立即分析或存储在无菌,干燥的介质中,以确保样品的长期完整性.
相关概念视频
Time Course of Drug Effect
2.1K
The progression of a drug's impact can be analyzed by examining both the concentration-time course and the effect-time course. The concentration-time course is determined by the drug's half-life and is influenced by factors such as its pharmacokinetics, including absorption, distribution, metabolism, and elimination. The effect of the drug is often related to its concentration in the plasma and is calculated using the maximum drug effect and the plasma concentration that generates 50...
2.1K
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
150
The elimination half-life and drug clearance of drugs following nonlinear kinetics can vary with dosage. The Michaelis-Menten parameters and drug concentration influence these factors. As the dose increases, the elimination half-life tends to lengthen, resulting in a reduction in clearance and a disproportionately larger area under the curve. The total clearance can be derived from the Michaelis-Menten equation for drugs following a one-compartment model.
A study on guinea pigs examined the...
A study on guinea pigs examined the...
150


