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Micro(nano)plastics: an Emerging Burden for Human Health.

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Microplastics and nanoplastics (MNPs) pose a global health risk due to widespread environmental contamination. Emerging research highlights their toxic effects and cellular disruption in humans, necessitating further investigation and mitigation strategies.

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Area of Science:

  • Environmental Health
  • Toxicology
  • Nanotechnology

Background:

  • Plastic pollution, particularly microplastics (MPs) and nanoplastics (NPs), is a pervasive global issue.
  • Human exposure to MPs and NPs occurs through ingestion, inhalation, and dermal contact.
  • The cellular homeostasis imbalance induced by MPs and NPs (MNPs) is a growing concern for human health.

Purpose of the Study:

  • To provide a comprehensive update on recent studies concerning the health effects of MNPs.
  • To focus on evidence related to human health impacts across various biological systems.
  • To raise awareness about MNP toxicity and oxidative stress, informing new counter-strategies.

Main Methods:

  • Review of existing scientific literature on MNP toxicity.
  • Analysis of studies investigating MNP effects in vitro and in vivo models.
  • Synthesis of evidence on MNP accumulation in human systems.

Main Results:

  • MNPs have been detected in cardiovascular, nervous, reproductive, and digestive systems.
  • Clear evidence of cardiovascular toxic effects from MNPs in humans has been established.
  • Studies indicate MNPs induce cellular homeostasis imbalance and oxidative alterations.

Conclusions:

  • MNPs represent a significant threat to human health, impacting multiple organ systems.
  • Further research is crucial to fully understand the molecular mechanisms of MNP toxicity.
  • Developing strategies to mitigate MNP exposure and their health consequences is imperative.