Eine Studie (an Mäusen) hat zum ersten Mal gezeigt, dass die Exposition eines Vaters gegenüber Mikroplastik (MPs) bei seinen Nachkommen Stoffwechselstörungen auslösen kann, was unterstreicht, dass sich MPs unterschiedlich auf männliche und weibliche Nachkommen auswirken

>To induce metabolic disorders in F1 offspring, the researchers fed them a high-fat diet. This approach helps reveal the effects of paternal exposure that might otherwise remain mild or hidden under normal diet conditions. The high-fat diet mimics common unhealthy eating patterns, such as the Western diet, and amplifies metabolic risks. Because the fathers themselves were fed a regular diet, the obesity seen in F1 offspring is diet-induced.
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>The research team found that female offspring of male mice exposed to MPs were significantly more susceptible to metabolic disorders than offspring of unexposed fathers, despite all offspring being fed the same high-fat diet. 
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>“The exact reasons for this sex-specific effect are still unclear,” said Changcheng Zhou, a professor of biomedical sciences in the UCR School of Medicine and the lead author of the study. “In our study, female offspring developed diabetic phenotypes. We observed upregulation of pro-inflammatory and pro-diabetic genes in their livers — genes previously linked to diabetes. These changes were not seen in male offspring.” 
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>The research team found that while male offspring did not develop diabetes, they showed a slight yet significant decrease in fat mass. Female offspring showed decreased muscle mass alongside increased diabetes.

[Paternal microplastic exposure alters sperm small non-coding RNAs and affects offspring metabolic health in mice | Journal of the Endocrine Society | Oxford Academic](https://academic.oup.com/jes/advance-article/doi/10.1210/jendso/bvaf214/8383852)