Effects of TiO2 nanoparticles at predicted environmental relevant concentration on the marine scallop Chlamys farreri: An integrated biomarker approach

被引：73

作者：

Xia, Bin ^{[1
,2
]}

Zhu, Lin ^{[1
,2
]}

Han, Qian ^{[1
]}

Sun, Xuemei ^{[1
,2
]}

Chen, Bijuan ^{[1
,2
]}

Qu, Keming ^{[1
,2
]}

机构：

[1] Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qjngdao 266071, Peoples R China

[2] Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China

来源：

ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY | 2017年 / 50卷

基金：

中国国家自然科学基金;

关键词：

TiO2; nanoparticles; Marine scallop; Oxidative stress; Neurotoxicity; Histopathological alteration; IBR analysis; TITANIUM-DIOXIDE NANOPARTICLES; METAL-OXIDE NANOPARTICLES; CARP CYPRINUS-CARPIO; OXIDATIVE STRESS; SILVER NANOPARTICLES; DNA-DAMAGE; RESPONSES; TOXICITY; EXPOSURE; FISH;

D O I：

10.1016/j.etap.2017.01.016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Manufactured nanoparticles (NPs) have caused extensive concern about their toxic effects on the marine environment. However, the chronic toxicity of NPs at predicted environmental relevant concentration on the marine organisms is poorly understood. In this study, we investigated the oxidative stress, neurotoxicity and histopathological effects of TiO2 NPs at predicted environmental relevant concentration (1 mg/L) to marine scallop Chlamys farreri. The results showed that TiO2 NPs caused obviously oxidative damage on the scallops as evidenced by the significantly elevated superoxide dismutase (SOD), catalase (CAT) activities and malondialdehyde (MDA) contents. The increased acetylcholine esterase (AChE) activities reflected neurotoxicity of TiO2 NPs. The histopathological analysis revealed alterations in the gill and digestive gland, such as dysplastic and necrosis. Additionally, integrated biomarker response (IBR) values indicated that TiO2 NPs can cause strong toxic effects on the scallop. These results suggested that predicted environmental relevant TiO2 NPs can cause adverse effects on scallops and IBR analysis can be used as an effective approach for risk assessment of NPs on the marine organisms. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：128 / 135

页数：8

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