丸激素对大鼠毒性尿路生物标志物的性别差异有所贡献
Satoshi Tsuji1, Aya Hasegawa-Izaki1, Bunichiro Ogawa1
1Drug Safety and Pharmacokinetics, Taisho Pharmaceutical Co., Ltd.
The Journal of toxicological sciences
|August 3, 2025
概括
丸激素影响功能生物标志物的性别差异. 这项研究发现,丸激素会影响大鼠的尿路生物标志物分泌和脏巨素水平,这表明它在基于性别的毒性中起着关键作用.
科学领域:
- 毒理学 毒理学 毒理学
- 腎臟病學 (nephrology) 是一種醫學專業.
- 内分泌学 在内分泌学.
背景情况:
- 尿路生物标志物对于在非临床研究中评估药物诱导的损伤至关重要.
- 现有的毒性研究缺乏对生物标志物分泌的性别差异的全面理解.
- 以前的研究表明,尿路生物标志物分泌的性别差异与内源性丸激素水平有关.
研究的目的:
- 研究丸激素对尿路生物标志物分泌和皮皮质蛋白水平的性别差异的影响.
- 确定血水平如何导致功能标志物中观察到的基于性别的变化.
- 探索丸激素在调节与功能相关的蛋白表达中的作用.
主要方法:
- 在4周内给雌性大鼠皮下注射丸激素.
- 用丸激素治疗的雌性老鼠和对照雄性老鼠之间的尿路生物标志物和皮蛋白水平的比较.
- 具体的尿路生物标志物的量化,包括LAP,γ-GTP,Cys-C,L-FABP,β2MG和Kim-1.
- 在皮层中评估巨蛋白水平.
主要成果:
- 在雌性大鼠中,丸激素治疗增加了LAP,γ-GTP,Cys-C,L-FABP和β2MG的尿路分泌.
- 丸激素的注射后,Kim-1的尿液分泌量下降.
- 雌性大鼠的皮巨蛋白水平比雄性大鼠高.
- 丸激素治疗降低了雌性大鼠皮质中的巨素水平.
结论:
- 血水平在调解低分子量蛋白质在尿液分泌中的性别差异方面发挥着重要作用.
- 丸激素调节皮层中巨氨酸的表达,影响生物标志物处理.
- 研究结果表明,丸激素是性别特异性毒性评估的关键因素.
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