Puntel Gustavo Orione, Gubert Priscila, Peres Gisele Louro, Bresolin Leandro, Rocha João Batista Teixeira, Pereira Maria Ester, Carratu Vanessa Santana, Soares Félix A Antunes
Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Campus UFSM, Santa Maria, RS 97105-900, Brazil.
Arch Toxicol. 2008 Oct;82(10):755-62. doi: 10.1007/s00204-008-0298-6. Epub 2008 May 27.
Oximes are a class of compounds normally used to reverse the acetylcholinesterase (AChE) inhibition caused by organophosphates (OPs). Conversely, researches focusing on the possible antioxidant properties of these compounds are lacking in the literature. The aim of this study was to investigate the potential antioxidant and toxic properties of 3-(phenylhydrazono) butan-2-one oxime in mice. In vitro, hydrogen peroxide-induced lipid peroxidation was decreased by low concentrations of the oxime (0.1-1.0 microM); (P < 0.05). Similarly, lipoperoxidation induced by malonate and iron (Fe2+) was significantly decreased by the oxime (0.4-1.0 microM) (P < 0.05). Oxime pre-treatment did not modify the basal peroxidation level nor prevented the induced lipid peroxidation determined ex-vivo. The present results suggest that 3-(phenylhydrazono) butan-2-one oxime could be a good antioxidant compound. The absence of toxicity signs after in vivo administration of 3-(phenylhydrazono) butan-2-one oxime to mice may indicate that it could be a safe drug for further studies.
肟是一类通常用于逆转有机磷酸酯(OPs)引起的乙酰胆碱酯酶(AChE)抑制作用的化合物。相反,文献中缺乏对这些化合物可能具有的抗氧化特性的研究。本研究的目的是探讨3-(苯腙基)丁-2-酮肟对小鼠的潜在抗氧化和毒性特性。在体外,低浓度的肟(0.1 - 1.0微摩尔)可降低过氧化氢诱导的脂质过氧化作用(P < 0.05)。同样,肟(0.4 - 1.0微摩尔)可显著降低丙二酸和铁(Fe2+)诱导的脂质过氧化作用(P < 0.05)。肟预处理并未改变基础过氧化水平,也未阻止体外测定的诱导脂质过氧化作用。目前的结果表明,3-(苯腙基)丁-2-酮肟可能是一种良好的抗氧化化合物。对小鼠体内给予3-(苯腙基)丁-2-酮肟后未出现毒性迹象,这可能表明它可能是一种适合进一步研究的安全药物。