在胃内给药后,大鼠血,尿液,胆汁和便中的三类的代谢概况
Mingfeng Jiang1, Qiang Hou1, Shuilian Wu1
1Department of Clinical Laboratory, Hangzhou Cancer Hospital, Hangzhou, China.
Natural product research
|September 3, 2024
概括
这项研究研究了triptophenolide的代谢命运,这是Tripterygium wilfordii的一种化合物. 研究人员在老鼠中发现了17种代谢物,揭示了这种抗癌药物候选物的关键代谢途径.
科学领域:
- 药理学和毒理学 药理学和毒理学
- 自然产品化学 自然产品化学
- 代谢学 代谢学 代谢学
背景情况:
- 特里普托菲诺利德是来自Tripterygium wilfordii Hook的一种二氧化物. f.,表现出强大的抗瘤,抗雄激素和抗炎性质.
- 对于理解其有效性和安全性至关重要的triptophenolide的体内代谢命运以前没有被阐明.
研究的目的:
- 在大鼠的生物基质 (血,尿液,胆汁,便) 中对ptophenolide 进行全面的代谢分析.
- 在大鼠中识别和描述三二的代谢产物并阐明其主要代谢途径.
主要方法:
- 超高性能液态染色学与四极飞行时间质谱学 (UPLC-QTOF-MS) 结合使用用于代谢物检测.
- 基于71种典型的代谢反应的提取离子染色图策略被用于代谢物识别.
- 在胃内注射三二胺后,对大鼠血,尿液,胆汁和便进行了代谢分析.
主要成果:
- 在分析的生物样本中,成功识别了17种triptophenolide代谢物.
- 在体内确定的主要代谢途径包括还原,氧化,葡萄糖合和化.
- 这种全面的代谢概况提供了对三二在老鼠中的生物转化过程的详细了解.
结论:
- 这项研究成功地阐明了大鼠中的三二的代谢命运和途径.
- 已识别的代谢物和途径为进一步的药理学研究和类的潜在临床应用提供了必要的数据.
- 这项研究为优化基于其代谢概况的三二的治疗用途奠定了基础.
更多相关视频
14:39Semi-Targeted Ultra-High-Performance Chromatography Coupled to Mass Spectrometry Analysis of Phenolic Metabolites in Plasma of Elderly Adults
Published on: April 22, 2022
3.9K
07:12Targeting the Rat's Small Bowel: Long-Term Infusion into the Superior Mesenteric Artery
Published on: April 8, 2021
4.2K
相关概念视频
Methods for Studying Drug Absorption: In situ
216
In situ experiments, such as the Doluisio method and Single-Pass Perfusion technique, provide critical insights into drug uptake by simulating in vivo conditions for drug absorption.
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...
216
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
104
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...
104
Drug Biotransformation: Overview
2.4K
Pharmaceutical substances known as xenobiotics are predominantly lipophilic and nonionized. This enables them to permeate lipid bilayers, such as cell membranes, and interact with intracellular target receptors. Lipophilic drugs have an advantage in crossing biological barriers and reaching their intended sites of action. However, lipophilic drugs often have a restricted capacity for renal expulsion or elimination from the body. When these drugs enter the kidneys and undergo glomerular...
2.4K
Hepatic Drug Excretion: Enterohepatic Cycling
1.5K
Enterohepatic cycling involves the active secretion of drugs and their metabolites into the bile via transporters in the canalicular membrane of hepatocytes. This secretion is an integral part of the digestive process, releasing these substances into the gastrointestinal (GI) tract.
Post-release drugs and metabolites can be reabsorbed into the body from the intestine. For conjugated metabolites like glucuronides, reabsorption requires enzymatic hydrolysis by intestinal microflora. This...
Post-release drugs and metabolites can be reabsorbed into the body from the intestine. For conjugated metabolites like glucuronides, reabsorption requires enzymatic hydrolysis by intestinal microflora. This...
1.5K
