新型化氧化物K870比obidoxime更好地保护老鼠免受帕洛克森中毒
Žana M Maksimović1,2, Sonja T Marinković3, Đorđe Đukanović1,4
1Centre for Biomedical Research, Faculty of Medicine, University of Banja Luka, Banja Luka, Bosnia and Herzegovina.
Drug and chemical toxicology
|January 28, 2025
概括
化氧化物K870与阿特罗宾结合,在被帕洛中毒的老鼠中,与奥比多西姆相比,显示出更高的抗剂效果. K870显著改善了乙胆酶活性和整体生存率.
科学领域:
- 毒理学 毒理学 毒理学
- 药理学 药理学是指药理学的学科.
- 生物化学 生化学
背景情况:
- 器官酸盐中毒,例如来自氧 (POX),构成了严重的毒理威胁.
- 乙胆酶 (AChE) 抑制是有机酸盐毒性的主要机制.
- 氧化物是通过重新激活抑制的ACHE来对有机酸盐中毒产生至关重要的抗药物.
研究的目的:
- 评估一种新型化氧化物K870对大鼠中毒的抗毒潜力.
- 为了比较oxime K870与已确定的抗药obidoxime的疗效.
- 评估这些氧化物与氨酸的联合作用.
主要方法:
- 鼠被毒 (POX) 毒害,并单独或与氨酸一起用oxime K870或obidoxime进行治疗.
- 氧化物剂量设定为其相应的LD50值的20%.
- 在各种组织和血中,通过光谱测量测量了乙胆化酶 (AChE) 和化酶的活性.
主要成果:
- 氧化K870与氨酸结合的保护比率 (125.0) 显著高于与氨酸 (68.8) 结合的奥比多西姆 (68.8).
- 这两种氧化物都在大脑,隔膜和红细胞中重新激活了ACHE,而K870表现更好.
- 奥比多克西姆在激活血碳酸酶方面更有效,而K870在激活肝脏碳酸酶方面更优越.
结论:
- 化氧化物K870,特别是与阿特罗宾联合使用时,比奥比多西姆-阿特罗宾组合更为有效地治疗大鼠中毒.
- 氧化物K870在不同组织中重新激活ACHE方面表现出广泛的有效性.
- 需要进一步研究oxime K870作为潜在的临床解药.
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