Department of Pharmacology & Toxicology, GRD (PG) IMT, Pharmacy, Rajpur road, Dehradun 248001, Uttarakhand, India.
Department of Pharmacology, Krupanidhi College of Pharmacy, Bengaluru 560035, Karnataka, India.
Biomed Pharmacother. 2017 Feb;86:279-291. doi: 10.1016/j.biopha.2016.12.015. Epub 2016 Dec 20.
Quercetin-Magnesium complex is one of the youngest alkaline rare earth metal (Magnesium) complexes with flavonoids (Quercetin) in organo-metalic family. Earlier studies describe the details of the complex formation, characterization and antioxidant study of the complex but toxicity profile is still under darkness. The present study was taken up to investigate the oral acute toxicity, 28days repeated oral sub-acute toxicity study and genotoxicity study of Quercetin-Magnesium complex in Swiss albino mice. Quercetin-Magnesium complex showed mortality at a dose of 185mg/kg in the Swiss albino mice. In 28days repeated oral toxicity study, Quercetin-Magnesium complex was administered to both sex of Swiss albino mice at dose levels of 150, 130 and 100mg/kg body weight respectively. Where 150mg/kg dose shows increased levels of white blood cells and changes in total protein, serum creatinine and blood urea nitrogen. Histopathological study of Quercetin-Magnesium complex shows minor structural alteration in kidney at 150mg/kg dose. No observed toxic level found in 130mg/kg or below doses. No genotoxic effect found in any doses of the complex. Therefore 130mg/kg or below dose level could be better for further study.
槲皮素-镁复合物是有机金属家族中黄酮类(槲皮素)与碱性稀土金属(镁)形成的复合物之一。早期的研究描述了复合物的形成、表征和抗氧化研究的细节,但复合物的毒性特征仍不清楚。本研究旨在探讨槲皮素-镁复合物在瑞士白化小鼠中的口服急性毒性、28 天重复口服亚急性毒性研究和遗传毒性研究。在瑞士白化小鼠中,槲皮素-镁复合物的剂量为 185mg/kg 时出现死亡。在 28 天重复口服毒性研究中,槲皮素-镁复合物分别以 150、130 和 100mg/kg 体重的剂量水平给予雌雄瑞士白化小鼠。150mg/kg 剂量组的白细胞水平升高,总蛋白、血清肌酐和血尿素氮发生变化。槲皮素-镁复合物的组织病理学研究显示,150mg/kg 剂量组肾脏有轻微的结构改变。在 130mg/kg 或以下剂量下未发现观察到的毒性水平。复合物的任何剂量均未发现遗传毒性作用。因此,130mg/kg 或以下的剂量水平可能更适合进一步研究。