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Sex‐specific effects of PET‐MPs on<i>Drosophila</i>lifespan

Archives of Insect Biochemistry and Physiology 2022 29 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 50 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Boying Liang, Boying Liang, Jie Shen Jie Shen Hao Tang, Jie Shen Jie Shen Yifan Xu, Boying Liang, Jie Shen Boying Liang, Boying Liang, Boying Liang, Boying Liang, Boying Liang, Boying Liang, Dake Zhang, Jie Shen Boying Liang, Yifan Xu, Yifan Xu, Hao Tang, Xingyou Liu, Dake Zhang, Dake Zhang, Dake Zhang, Yifan Xu, Yifan Xu, Jie Shen Jie Shen Jie Shen Jie Shen Hao Tang, Hao Tang, Hao Tang, Xingyou Liu, Jie Shen Yan Li, Jie Shen Hao Tang, Yifan Xu, Yifan Xu, Jie Shen

Summary

Researchers found that PET microplastic exposure has sex-specific effects on fruit fly lifespan, with low concentrations actually prolonging male lifespan through a possible hormesis effect, while significant interactions between sex and microplastic concentration were observed.

Polymers

PE PET

Body Systems

Respiratory

In recent years, as an emerging pollutant, microplastic (MPs) pollution is gradually becoming a research hotspot. MPs are ubiquitous in the entire ecological environment. Organisms can be exposed to MPs via inhalation or ingestion. In view of the widespread of MPs pollution, the impact of MPs on biology should be further investigated. In previous experiments, we have conducted research on the physiology of Drosophila exposed to polyethylene terephthalate microplastics (PET-MPs). However, will the lifespan of Drosophila be affected under long-term PET-MPs exposure? The analysis of variance analysis of our experimental results indicates that there are significant differences between males and females, F(1, 895) = 68.19, p < 0.001, between PET-MPs concentration, F(3, 895) = 8.11, p < 0.001. There are also significant interactions between sex and MP concentration, F(3, 895) = 4.00, p < 0.01. For Cox and log-rank test, 1 g/L of PET-MPs prolongs the lifespan of male flies. The reason for this phenomenon may be the hormesis effect.

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