https://scholars.lib.ntu.edu.tw/handle/123456789/629048
Title: | Distribution and toxicity of submicron plastic particles in mice | Authors: | Tsou, Tsung-Yen Lee, Sheng-Han Kuo, Tzu-Hsuan Chien, Chu-Chun HSIN-CHANG CHEN TSUN-JEN CHENG |
Keywords: | Flow cytometry; Inflammation; Number concentration; Oral gavage; Oxidative stress; Submicron microplastics | Issue Date: | Jan-2023 | Publisher: | ELSEVIER | Journal Volume: | 97 | Source: | Environmental Toxicology and Pharmacology | Abstract: | Although microplastics (MPs) have become a global issue, the biodistribution and toxicities of MPs were still unclear. In this study, c57BL/6 mice were treated with submicron-sized MPs labeled with Nile red fluorescence by oral gavage three times a week for four consecutive weeks. Flow cytometry and microscopy technique were used to examine the concentration and distribution of MPs in various tissues and biofluids. The oxidative stress and inflammation were assessed via liquid chromatography-mass spectrometry and enzyme-linked immunosorbent assay, respectively. Submicron-sized MP signals were found in the intestines, liver, spleen, kidney, lungs, blood, and urine of mice after MP exposure. Increased oxidative stress in mouse urine and elevated inflammatory cytokines in mouse kidney were also recorded. In conclusion, flow cytometry is a useful tool for examining the number concentrations of MPs. Increased oxidative stress and inflammation after MP treatment indicates that the toxicity of MP warrants further investigation. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/629048 | ISSN: | 1382-6689 | DOI: | 10.1016/j.etap.2022.104038 |
Appears in Collections: | 環境與職業健康科學研究所 |
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