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Effects of microplastic exposure on the early developmental period and circadian rhythm of zebrafish (Danio rerio): A comparative study of polylactic acid and polyglycolic acid.
Luan, Jialu; Zhang, Shuhui; Xu, Yixin; Wen, Liang; Feng, Xizeng.
Afiliação
  • Luan J; College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, China.
  • Zhang S; College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, China.
  • Xu Y; College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, China.
  • Wen L; China Shenhua Coal To Liquid and Chemical CO., LTD. of China Energy, Beijing 100011, China. Electronic address: liang.wen@chnenergy.com.cn.
  • Feng X; College of Life Science, State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, Nankai University, Tianjin 300071, China. Electronic address: xzfeng@nankai.edu.cn.
Ecotoxicol Environ Saf ; 258: 114994, 2023 Jun 15.
Article em En | MEDLINE | ID: mdl-37167737
ABSTRACT
Polyglycolic acid (PGA) is an emerging biodegradable plastic material. Together with polylactic acid (PLA), PGA is considered a suitable alternative to conventional plastics and has been widely used in biomedical and food packaging industries. However, degradable plastics continue to face the drawbacks of harsh degradation environment and long degradation time, and may harm the environment and the human body. Therefore, our study focused on assessing the effects of degradable microplastics PGA and PLA on the development and neurobehavior of zebrafish. The results showed that PGA and PLA had little effect on 3-10 hpf embryos. However, developmental stunting was observed in a100 mg/L PGA and PLA-exposed group at 24 hpf. In addition, PGA and PLA exposure decreased the survival and hatching rates, increased wakefulness, and reduced sleep in zebrafish. This indicates that PGA and PLA may affect the circadian behavior of zebrafish by affecting the brain-derived neurotrophic factor (BDNF). Therefore, our results suggest that PGA and PLA exposure induces developmental toxicity, reduces voluntary locomotion, induces of anxiety-like behaviors, and impairs sleep/wake behaviors in zebrafish larvae. This also suggests that the potentially toxic effects of degradable plastics cannot be ignored and that the biological effects of PGA require further research.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plásticos / Poluentes Químicos da Água Limite: Animals / Humans Idioma: En Revista: Ecotoxicol Environ Saf Ano de publicação: 2023 Tipo de documento: Article País de afiliação: China

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Plásticos / Poluentes Químicos da Água Limite: Animals / Humans Idioma: En Revista: Ecotoxicol Environ Saf Ano de publicação: 2023 Tipo de documento: Article País de afiliação: China