相关实验视频
Updated: Jan 13, 2026

Estrogen-Like Effect of Bazi Bushen Capsule in Ovariectomized Rats
Published on: April 7, 2023
选择性雌激素受体调节剂bazedoxifene影响人类中性粒细胞的新陈代谢和功能
Elena Lonina1,2,3, Florence Léveillé2,3, Pier-Olivier Leblanc2,3
1Infectious and Immune Diseases Research Program, CHU de Québec-Université Laval Research center, Québec, QC, Canada.
巴兹西芬可能会通过影响中性粒细胞而恶化炎症,可能会增加细胞因子的释放,同时降低病原体清除. 在用于慢性疾病之前需要进一步的研究.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
背景情况:
- 作为一种选择性雌激素受体调节剂 (SERM),巴兹多克西芬可以治疗更年期症状,并被用于癌症治疗.
- 消毒毒素可以破坏免疫细胞功能,特别是中性粒细胞,它们是关键的炎症媒介.
- 巴兹西芬对中性粒细胞活性及其潜在机制的影响仍然不清楚.
研究的目的:
- 调查巴泽多克西芬对中性粒细胞活力,新陈代谢和功能的影响.
- 为了探索中性粒细胞对bazedoxifene的性别依赖反应.
- 阐明分子机制,包括雌激素受体和激酶通路,涉及bazedoxifene对中性粒细胞的影响.
主要方法:
- 来自健康捐赠者的中性粒细胞用bazedoxifene进行治疗.
- 试验包括流动细胞测量以检测生命力,细胞外流量分析以检测新陈代谢,ELISA检测细胞因子,pHrodo-E. coli检测发酵细胞,以及对活性氧物种的光化学发光.
- 用雌激素受体和激酶 (p38 MAPK) 抑制剂来探测机制.
主要成果:
- 高剂量的bazedoxifene以性别依赖的方式降低了中性粒细胞的活力.
- 在两种性别中,巴兹西芬增加了炎症性细胞因子的释放和抗菌功能受损 (细胞分裂,ROS产生).
- 影响独立于雌激素受体,但可能涉及p38 MAPK激活.
结论:
- 巴兹西芬可能会通过促进化学激素的释放和阻碍病原体清除来加剧中性友好性炎症.
- 这些发现揭示了SERM的潜在不良免疫效应,影响了它们对慢性疾病的重新用途.
- 了解bazedoxifene的免疫相互作用对于预测其在更广泛的治疗环境中的安全性和有效性至关重要.
更多相关视频
06:18An In Vivo Estrogen Deficiency Mouse Model for Screening Exogenous Estrogen Treatments of Cardiovascular Dysfunction After Menopause
Published on: August 13, 2019
10:51Reverse Yeast Two-hybrid System to Identify Mammalian Nuclear Receptor Residues that Interact with Ligands and/or Antagonists
Published on: November 15, 2013
相关概念视频
Transducer Mechanism: Nuclear Receptors
About 48 different soluble family members of nuclear receptors are identified that can be divided into two main classes:
Factors Affecting Drug Biotransformation: Biological
Species differences: Variations in enzyme systems across species can cause disparities in drug metabolism. For instance, humans may metabolize certain drugs faster than rodents, altering therapeutic effects.
Strain differences: Genetic variations within a species can result in differing enzyme activity, impacting drug response and toxicity. For example, some mouse strains may...
Dose-Response Relationship: Selectivity and Specificity
Pharmacokinetics in Obese Patients: Drug Metabolism and Excretion
Factors Affecting Drug Biotransformation: Physicochemical and Chemical Properties of Drugs
The drug's acidity or basicity is essential in...
Nonlinear Pharmacokinetics: Dependence of Elimination Half-Life and Dose Clearance
A study on guinea pigs examined the...