Yousef Doaa Mohammed, Hassan Heba Ahmed, Nafea Ola Elsayed, El Fattah Eman Ramadan Abd
Department of Anatomy and Embryology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
Department of Clinical Pharmacology, Faculty of Medicine, Zagazig University, Zagazig 44519, Egypt.
Toxicol Res (Camb). 2022 Oct 11;11(6):911-919. doi: 10.1093/toxres/tfac064. eCollection 2022 Dec.
Exposure to nanoparticles became inevitable in our daily life due to their huge industrial uses. Copper oxide nanoparticles (CuONPs) are one of the most frequently utilized metal nanoparticles in numerous applications. Crocin (CRO) is a major active constituent in saffron having anti-inflammatory and antioxidant potentials.
We designed this study to explore the probable defensive role of CRO against CuONPs-induced rat hepatic damage.
Therefore, 24 adult rats were randomly distributed into 4 equal groups as negative control, CRO, CuONPs, and co-treated CuONPs with CRO groups. All treatments were administered for 14 days. The hepatotoxic effect of CuONPs was evaluated by estimation of hepatic alanine aminotransferase and aspartate aminotransferase enzymes, hepatic oxidative malondialdehyde and antioxidant glutathione reduced, serum levels of inflammatory biomarkers (tumor necrosis factor-alpha, interleukin-1-beta, and nuclear factor kappa B), and expression of the apoptotic BAX in hepatic tissues; in addition, histopathological examination of the hepatic tissues was conducted.
We found that concurrent CRO supplement to CuONPs-treated rats significantly averted functional and structural rat hepatic damage as documented by decreased hepatic enzymes activities, restored hepatic oxidant/antioxidant balance, decreased serum levels of inflammatory biomarkers, reversed BAX-mediated apoptotic cell death in hepatic tissues along with repair of CuONPs-induced massive hepatic structural and ultrastructural alterations.
It is concluded that combined CRO supplement to CuONPs-treated rats improved hepatic function and structure by, at least in part, antioxidant, anti-inflammatory, and antiapoptotic mechanisms.
由于纳米颗粒在工业上的大量应用,人们在日常生活中不可避免地会接触到它们。氧化铜纳米颗粒(CuONPs)是众多应用中最常用的金属纳米颗粒之一。藏红花素(CRO)是藏红花中的主要活性成分,具有抗炎和抗氧化潜力。
我们设计本研究以探讨CRO对CuONPs诱导的大鼠肝损伤可能的保护作用。
因此,将24只成年大鼠随机分为4组,即阴性对照组、CRO组、CuONPs组和CRO与CuONPs联合处理组。所有处理均持续14天。通过检测肝丙氨酸氨基转移酶和天冬氨酸氨基转移酶、肝脏氧化型丙二醛和抗氧化型还原型谷胱甘肽、炎症生物标志物(肿瘤坏死因子-α、白细胞介素-1-β和核因子κB)的血清水平以及肝脏组织中凋亡相关蛋白BAX的表达来评估CuONPs的肝毒性作用;此外,还对肝脏组织进行了组织病理学检查。
我们发现,给CuONPs处理的大鼠同时补充CRO可显著避免大鼠肝脏的功能和结构损伤,表现为肝酶活性降低、肝脏氧化/抗氧化平衡恢复、炎症生物标志物血清水平降低、肝脏组织中BAX介导的凋亡细胞死亡逆转,以及CuONPs诱导的大量肝脏结构和超微结构改变得到修复。
得出结论,给CuONPs处理的大鼠联合补充CRO可通过至少部分抗氧化、抗炎和抗凋亡机制改善肝功能和结构。