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维生素 B 对溴酸钾诱导雄性大鼠肝毒性的缓解作用。

The Alleviative Effect of Vitamin B on Potassium Bromate-Induced Hepatotoxicity in Male Rats.

机构信息

Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia 11451.

出版信息

Biomed Res Int. 2020 Jul 30;2020:8274261. doi: 10.1155/2020/8274261. eCollection 2020.

Abstract

Potassium bromate (PB) is a food enhancer, water disinfection by-product, and a proven carcinogen. It elicits toxicities in the living organism due to exposure and in a dose-dependent manner. The present study discourses the ameliorative efficacy of riboflavin (RF) in PB-administered rodents. The animals were distributed into five treatment groups: control (group I), PB alone (group II, 150 mg/kg), RF alone (group III, 2 mg/kg), PB+RF1 (group IV, 150 mg/kg + 2 mg/kg), and PB+RF2 (group V, 150 mg/kg + 4 mg/kg). After the round of the treatment, the animals were sacrificed to collect their blood and liver samples for the detailed analysis. Group II depicted perturbed liver functions evidenced by altered serum and toxicity markers along with the disturbed redox balance. Also, these biochemical results were found harmonious with histopathological analysis and comet assay. However, group III showed no noticeable alteration in the same parameters, whereas the combination groups (IV and V) exhibited dose-dependent amelioration in the PB-induced toxicities. Interestingly, RF favored apoptosis concomitant with suppressing the necrosis in the PB-challenged groups, as shown by the activity of caspase-3 and lactate dehydrogenase. Histopathological analysis and comet assay further consolidate these results. Hence, RF has significant alleviative property against PB-induced hepatotoxicity in vivo that can be used in the consumer items containing the toxicant.

摘要

溴酸钾 (PB) 是一种食品添加剂、水消毒剂,也是一种已被证实的致癌物质。由于暴露和剂量依赖的原因,它会在生物体中引起毒性。本研究探讨了核黄素 (RF) 对 PB 给药啮齿动物的改善效果。动物被分为五组治疗:对照组(I 组)、单独 PB(II 组,150mg/kg)、单独 RF(III 组,2mg/kg)、PB+RF1(IV 组,150mg/kg+2mg/kg)和 PB+RF2(V 组,150mg/kg+4mg/kg)。一轮治疗后,处死动物收集血液和肝脏样本进行详细分析。II 组表现出受损的肝功能,血清和毒性标志物发生改变,氧化还原平衡受到干扰。此外,这些生化结果与组织病理学分析和彗星试验一致。然而,III 组在相同参数中没有明显变化,而联合组(IV 和 V)在 PB 诱导的毒性中表现出剂量依赖性改善。有趣的是,RF 有利于凋亡,同时抑制 PB 挑战组中的坏死,如 caspase-3 和乳酸脱氢酶的活性所示。组织病理学分析和彗星试验进一步证实了这些结果。因此,RF 对体内 PB 诱导的肝毒性具有显著的缓解作用,可用于含有该毒物的消费品。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/68f3/7415125/4e92b9e53bd5/BMRI2020-8274261.001.jpg

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