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Review: Microplastics: A threat for developing and repairing organs? — R1/PR8
Summary
This review synthesizes evidence on how micro- and nanoplastics (MNPs) affect organ development and repair processes in humans and laboratory rodents, noting that MNPs have been detected in virtually every human tissue including the placenta. Early developmental windows are particularly vulnerable because MNPs and their chemical additives can disrupt genome programming and hormonal signaling during critical growth phases. The review concludes that MNPs and their leached chemicals can impair both normal development and the healing processes that reuse developmental pathways after injury.
Plastic production has greatly increased in the past decades and has become central to modern human life. Realization is dawning that plastics break down into smaller pieces resulting in micro- or nanoplastics (MNP) that can enter humans directly via the environment. Indeed, MNP have been detected in every part of the human body, including the placenta, which is concerning for development. Early developmental stages are crucial for proper growth and genome programming. Environmental disruptors in MNP can have detrimental effects during this critical window as well and can increase the risk of developing disease and dysfunction. In addition, MNP may impact situations in which developmental pathways are reactivated after birth such as during organ repair. Currently, there is no overview of how MNP can impair (human) development and repair. Therefore, we provide an extensive overview of available evidence on MNP impacting developmental and regenerative processes in various organs in humans and rodent models. In addition, we have included the impact of some additives that can leach from these MNP. We conclude that MNP and their additives can have modulating effects on developing and regenerating organs.
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Review: Microplastics: A threat for developing and repairing organs? — R1/PR7
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