Microplastics (MPs) have become a prominent environmental concern due to their ubiquity in various ecosystems and widespread distribution through multiple channels. In this study, the oral effects of 2,000 mesh polytetrafluoroethylene (PTFE) microplastics were tested against Drosophila melanogaster (Meigen), at concentrations of 0, 0.1, 1, 10, and 20. After exposure to a microplastic-containing medium for 20 days, energy metabolism, fecundity, spontaneous movement, and sleeping time were measured. The study results showed that glucose levels in male flies were significantly reduced after exposure to PTFE-MPs. Measurement of lipid and protein levels indicated an increase in males but decrease in females, whereas these changes were not statistically significant. Reduction in sleep time was also observed, especially in males at the concentration of 20 g/l. Our study indicates that chronic exposure of PTFE-MPs can change energy metabolism and the amount of sleep on D. melanogaster in a sex dependent and dose dependent way. The results of our study are hoped to contribute to a better understanding of the effects of microplastics as new pollutants on insects.

中文翻译：

---

长期接触聚四氟乙烯微塑料会对模型昆虫果蝇（双翅目：果蝇科）造成性别特异性影响

微塑料（MP）因其普遍存在于各种生态系统中并通过多种渠道广泛分布而已成为一个突出的环境问题。在这项研究中，测试了浓度为 0、0.1、1、10 和 20 的 2,000 目聚四氟乙烯 (PTFE) 微塑料对黑腹果蝇 (Meigen) 的口腔效果。暴露于含有微塑料的介质 20 天后，测量了能量代谢、繁殖力、自发运动和睡眠时间。研究结果表明，雄性果蝇暴露于PTFE-MPs后，葡萄糖水平显着降低。脂质和蛋白质水平的测量表明男性增加但女性减少，而这些变化没有统计学意义。还观察到睡眠时间减少，特别是在浓度为 20 g/l 的男性中。我们的研究表明，长期接触 PTFE-MP 可以以性别依赖性和剂量依赖性的方式改变黑腹果蝇的能量代谢和睡眠时间。我们的研究结果希望有助于更好地了解微塑料作为新污染物对昆虫的影响。