通过超高性能LC-Q-OrbitrapMS在老鼠血中有效量化塔克罗利斯:精确的药物动力学分析工具
Xiao-Rong Zhang1, Jia Yao1, Teng-Fei Ma1
1Corneal Transplant Center, Hebei Medical University Third Hospital, Shijiazhuang, Hebei Province, China.
Biomedical chromatography : BMC
|July 6, 2025
概括
由于其狭窄的治疗指数,精确的塔克罗利斯测量至关重要. 本研究提出了一种经过验证的超高性能液体染色学-四极-轨道轨道质谱法方法,用于精确地量化血中的塔克罗利斯.
科学领域:
- 分析化学 分析化学
- 药理学 药理学是指药理学的学科.
- 生物医学科学 生物医学科学
背景情况:
- 塔克罗利莫斯的治疗指数很窄,因此需要精确的药物度监测.
- 精确的量化对于优化疗效和最小化毒性至关重要.
- 可靠的分析方法对于治疗药物监测至关重要.
研究的目的:
- 开发和验证一种超高性能液体染色学-四极-轨道轨道质谱法 (UPLC-MS/MS) 方法,用于在血中定量塔克罗利斯.
- 建立一个敏感和准确的分析技术来测量塔克罗利斯.
- 支持药理动力学研究和治疗药物监测.
主要方法:
- 超高性能液态色谱 (UPLC) 与四极轨道轨道质谱相结合.
- 精度UPLC BEH C18柱与梯度化 (甲醇/水与酸).
- 阳性电离模式,具有完整的MS/dd-MS2扫描.
主要成果:
- 该方法表现出广泛的线性范围 (0.5500μg/L) 和低的量化极限 (0.5μg/L).
- 实现了高精度和可重复性,相对标准偏差和误差低于6%.
- 塔克罗利斯的提取效率在84.78%至97.15%之间.
结论:
- 成功开发了一种可靠且经过验证的UPLC-MS/MS方法,用于在老鼠血中定量塔克罗利斯.
- 该方法适用于药理动力学研究和临床前药物处置研究.
- 这种分析平台可以精确测量塔克罗利斯度,有助于剂量优化.
更多相关视频
相关概念视频
01:15Drug Concentration Versus Time Correlation
The plasma drug concentration-time curve is a crucial tool in pharmacokinetics, representing the drug's concentration in plasma at different time intervals post-administration. This curve illustrates the drug's journey from absorption into the systemic circulation, distribution to body tissues, and eventual elimination through excretion or biotransformation.
Two pivotal parameters are the minimum effective concentration (MEC) and the minimum toxic concentration (MTC). The MEC is the lowest drug...
Two pivotal parameters are the minimum effective concentration (MEC) and the minimum toxic concentration (MTC). The MEC is the lowest drug...
01:30Measurement of Bioavailability: Pharmacokinetic Methods
Pharmacokinetics is a vital branch of pharmacology that examines how drugs are absorbed, distributed, metabolized, and excreted by the body. Two key methodologies in pharmacokinetics are plasma drug concentration studies and urinary drug excretion analyses, both of which provide critical insights into a drug's therapeutic efficacy and bioavailability.Plasma Drug Concentration-Time StudiesPlasma drug concentration-time studies involve analyzing blood samples at specific intervals to quantify...
01:20Measurement of Bioavailability: Pharmacodynamic Methods
Pharmacodynamic methods provide insights into a drug's effects on physiological processes over time and play a crucial role in understanding bioavailability and therapeutic efficacy. These methods can be broadly classified into acute pharmacological and therapeutic response approaches, each with distinct mechanisms and applications.The acute pharmacological response method directly correlates a drug's physiological effects, such as ECG or pupil diameter changes, to its time course in the body.