Antioxidant Activity of New Aramide Nanoparticles Containing Redox-Active N-phthaloyl Valine Moieties in the Hepatic Cytochrome P450 System in Male Rats
作者:Hammed H. A. M. Hassan、Sabah G. El-Banna、Amel F. Elhusseiny、El-Sayed M. E. Mansour
DOI:10.3390/molecules17078255
日期:——
We report the synthesis of aramide nanoparticles containing a chiral N-phthaloyl valine moiety and their antioxidant activities on hepatic contents of cytochrome P450, amidopyrene N-demethylase, aniline-4-hyroxylase and induced the hepatic content of cytochrome b5 and nicotinamide adenine dinucleotide phosphate (NADPH) cytochrome C-reductase. Polymers were obtained as well-separated spherical nanoparticles while highly aggregated particles via H-bonding organization of the aramide-containing pyridine led to a thin layer formation. The effects of the nanoparticles and CCl4 on enzyme activities and thiobarbituric acid reactive substances (TBARS) levels of male rat liver were studied. Pretreatments of rats with the polyamides prior to the administration of CCl4 decreased the hepatic content of the tested enzymes. Doses reduced the toxic effects exerted by (•CCl3) upon the liver through inhibition of the cytochrome P450 system. Inhibition of such metabolizing enzymes could reduce the carcinogenic effects of chemical carcinogens.
我们报告了含有手性 N-邻苯二甲酰基缬氨酸分子的芳族聚酰胺纳米粒子的合成及其对肝脏中细胞色素 P450、脒基芘 N-脱甲基酶、苯胺-4-羟化酶的抗氧化活性,以及诱导肝脏中细胞色素 b5 和烟酰胺腺嘌呤二核苷酸磷酸(NADPH)细胞色素 C 还原酶的活性。聚合物以分离良好的球形纳米颗粒形式存在,而高度聚集的颗粒则通过含芳香族吡啶的 H 键组织形成薄层。研究了纳米颗粒和 CCl4 对雄性大鼠肝脏酶活性和硫代巴比妥酸活性物质(TBARS)水平的影响。在给大鼠注射四氯化碳之前用多酰胺进行预处理,可降低肝脏中受测酶的含量。通过抑制细胞色素 P450 系统,减少了 (-CCl3) 对肝脏的毒性作用。抑制这种代谢酶可以减少化学致癌物的致癌作用。