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利用多种生物标志物研究银纳米颗粒和硝酸银对蛞蝓的抗氧化失衡、分子损伤及组织化学变化

Silver-Nanoparticle- and Silver-Nitrate-Induced Antioxidant Disbalance, Molecular Damage, and Histochemical Change on the Land Slug () Using Multibiomarkers.

作者信息

Bakr Zeinab, Said Shimaa Mohamed, Mohammad Wafaa A, Aboulnasr Gehad N, Elshimy Naser A

机构信息

Zoology Department, Faculty of Science, Assiut University, Assiut, Egypt.

Zoology Department, Faculty of Science, New Valley University, New Valley, Egypt.

出版信息

Front Physiol. 2022 Aug 1;13:945776. doi: 10.3389/fphys.2022.945776. eCollection 2022.

Abstract

It is known that silver nanoparticles (Ag NPs) and AgNO have harmful effects on the surrounding organisms, which may cause damage to these organisms. Therefore, the aim of this study is to detect damage caused by Ag NPs and silver nitrate to land slugs (). In this study, the slugs were exposed to various concentrations of Ag NPs and AgNO for 15 days. The biochemical, antioxidant, lipid peroxidation (LPO), DNA fragmentation, and histopathological endpoints were assessed after 15 days of exposure to different concentrations of Ag NPs (0.04, 0.08, 0.4, and 0.8 g/L) and silver nitrate (0.04, 0.08, 0.4, and 0.8 g/L). The results show a significant decrease in total protein, total carbohydrate, superoxide dismutase, and GST and a significant increase in total lipid, LPO, and DNA fragmentation after exposure to Ag NPs and AgNO for 15 days compared with the control group. Histopathiological alterations were observed in the digestive glands which were indicated by histochemical staining. We concluded that exposure to AgNO and Ag NPs caused oxidative stress, genetic damage and alterations in the profile of muscle proteins and histological structure in .

摘要

已知银纳米颗粒(Ag NPs)和硝酸银(AgNO₃)对周围生物体具有有害影响,这可能会对这些生物体造成损害。因此,本研究的目的是检测Ag NPs和硝酸银对蛞蝓造成的损害。在本研究中,将蛞蝓暴露于不同浓度的Ag NPs和AgNO₃中15天。在暴露于不同浓度的Ag NPs(0.04、0.08、0.4和0.8 g/L)和硝酸银(0.04、0.08、0.4和0.8 g/L)15天后,评估生化、抗氧化、脂质过氧化(LPO)、DNA片段化和组织病理学终点。结果显示,与对照组相比,暴露于Ag NPs和AgNO₃ 15天后,总蛋白、总碳水化合物、超氧化物歧化酶和谷胱甘肽-S-转移酶显著降低,总脂质、LPO和DNA片段化显著增加。通过组织化学染色表明,在消化腺中观察到组织病理学改变。我们得出结论,暴露于AgNO₃和Ag NPs会导致氧化应激、遗传损伤以及蛞蝓肌肉蛋白谱和组织结构的改变。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/14e2/9376806/44f6e8d6ebd2/fphys-13-945776-g001.jpg

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