柚皮素通过改善氧化炎症信号和细胞凋亡抑制镉在大鼠肝脏中的蓄积并减轻镉诱导的肝毒性。

Naringenin blocks hepatic cadmium accumulation and suppresses cadmium-induced hepatotoxicity via amelioration of oxidative inflammatory signaling and apoptosis in rats.

机构信息

Department of Biological Sciences, College of Science, King Faisal University, Al-Ahsa, Saudi Arabia.

Department of Medical Biochemistry, Faculty of Basic Medical, Sciences, College of Medical Sciences, Alex-Ekwueme Federal University, Ndufu-Alike, Ikwo, Nigeria.

出版信息

Drug Chem Toxicol. 2024 Jul;47(4):436-444. doi: 10.1080/01480545.2023.2196377. Epub 2023 Apr 19.

Abstract

Liver is one of the targets of cadmium (Cd) bioaccumulation for hepatic damage and pathologies via oxidative inflammation and apoptosis. The current study explored whether the citrus flavonoid naringenin (NAR) could prevent hepatic accumulation of Cd and Cd hepatotoxicity in a rat model. Rats in group 1 received normal saline; group 2 received NAR (50 mg/kg body weight); group 3 received CdCl (5 mg/kg body weight); group 4 received NAR + CdCl, for four consecutive weeks. Assays related to markers of oxidative stress, inflammation, and apoptosis were carried out using liver homogenate. Blood and liver sample analyses revealed significant elevation of blood and hepatic Cd levels coupled with prominent increases in alkaline phosphatase (ALP), alanine aminotransferase (ALT), and aspartate aminotransferase (AST) activities, whereas the albumin and total protein levels were decreased considerably. Hepatic superoxide dismutase (SOD), catalase (CAT), glutathione peroxide (GPx) activities diminished significantly compared to control followed by marked increases in malondialdehyde (MDA) levels, and dysregulation in caspase and cytokine (TNF-α, IL-6, IL-4, IL-10) levels. However, it was found that in the rats administered NAR + Cd, the levels of Cd, hepatic enzymes, MDA, TNF-α, IL-6, and caspases-3/-9 were prominently reduced compared to the Cd group. The hepatic SOD, CAT, GPx, IL-4, IL-10, albumin, and total protein were markedly elevated along with alleviated hepatic histopathological abrasions. Taken together therefore, NAR is a potential flavonoid for blocking hepatic Cd bioaccumulation and consequent inhibition of Cd-induced oxidative inflammation and apoptotic effects on the liver of rats.

摘要

肝脏是镉(Cd)生物蓄积的靶器官之一,会通过氧化炎症和细胞凋亡导致肝损伤和病变。本研究旨在探讨柑橘类黄酮柚皮苷(NAR)是否可以防止大鼠模型中肝脏对 Cd 的蓄积和 Cd 肝毒性。第 1 组给予生理盐水;第 2 组给予 NAR(50mg/kg 体重);第 3 组给予 CdCl(5mg/kg 体重);第 4 组给予 NAR+CdCl,连续四周。使用肝匀浆进行与氧化应激、炎症和细胞凋亡标志物相关的测定。血液和肝脏样本分析显示,血液和肝 Cd 水平显著升高,同时碱性磷酸酶(ALP)、丙氨酸氨基转移酶(ALT)和天冬氨酸氨基转移酶(AST)活性显著增加,而白蛋白和总蛋白水平显著降低。与对照组相比,肝超氧化物歧化酶(SOD)、过氧化氢酶(CAT)和谷胱甘肽过氧化物酶(GPx)活性显著降低,随后丙二醛(MDA)水平显著升高,caspase 和细胞因子(TNF-α、IL-6、IL-4、IL-10)水平失调。然而,在给予 NAR+Cd 的大鼠中,与 Cd 组相比,Cd、肝酶、MDA、TNF-α、IL-6 和 caspase-3/-9 的水平明显降低。肝 SOD、CAT、GPx、IL-4、IL-10、白蛋白和总蛋白水平显著升高,肝组织病理学磨损明显减轻。因此,NAR 是一种潜在的黄酮类化合物,可以阻止肝脏对 Cd 的生物蓄积,并抑制 Cd 对大鼠肝脏的氧化炎症和凋亡作用。

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