Bioaccumulation and toxicological effects of dietborne arsenic exposure on the apple snail (Pomacea canaliculata)
文献类型： 外文期刊
作者： Bi, Xiaoyang 1 ; Liu, Yanwei 1 ; Wang, Yan 1 ; Li, Dongqin 2 ; Li, Huashou 1 ; Qiu, Rongliang 1 ; Chen, Guikui 1 ;
作者机构： 1.South China Agr Univ, Coll Nat Resources & Environm, Guangdong Lab Lingnan Modern Agr, Guangdong Prov Key Lab Agr & Rural Pollut Abatemen, Guangzhou 510642, Peoples R China
2.Guangdong Acad Agr Sci, Inst Qual Stand & Monitoring Technol Agroprod, Guangzhou 501640, Peoples R China
3.Sun Yat Sen Univ, Sch Environm Sci & Engn, Guangzhou 510006, Peoples R China
关键词： Dietborne arsenic; Apple snail; Enzymatic activity; Subcellular distribution; Gut microbial
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2024 年 480 卷
页码：
收录情况： SCI
摘要： An eight-compartment physiologically based pharmacokinetic (PBPK) model was used to simulate the bioaccumulation and distribution of arsenic (As) within the apple snail (Pomacea canaliculata) following the ingestion of As-contaminated lettuce. The bioaccumulation results revealed that the shell contained the majority (67.21 %) of the total As content, with the liver and the head-foot containing approximately 11.14 % and 10.45 % of the total As content in the snail, respectively. Modeling quantified the process of intestine-stomach absorption of dietborne As and revealed its crucial role in the subsequent distribution of As within the body. The liver is the primary metabolic site, whereas the shell is the primary storage site. Exposure to dietborne As leads to pronounced physiological and biochemical alterations in apple snails. Total protein levels decreased by 24.06 %, superoxide dismutase (SOD) activity decreased by 24.43 %, malondialdehyde (MDA) content increased by 47.51 %, glutathione (GSH) content decreased by 46.99 %, and glutathione S-transferase (GST) activity decreased by 42.22 %. Furthermore, the subcellular-level results indicated that dietborne As exposure altered subcellular distribution in the liver. Additionally, dietborne As exposure significantly reduced the abundance of gut microbiota in apple snails.
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