Airborne Nanoplastics Exposure Inducing Irreversible Glucose Increase and Complete Hepatic Insulin Resistance

Ziye Yang, Huajiang Dong, Yifei Gao, Shuang Liu, Long Chen, Guangjian Ni, Xiaoyu Guo, Meixue Wang, Can Wang*, Yue Chen*, Liqun Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

20 Citations (Scopus)

Abstract

As an emerging type of pollutant, microplastics have become a global environmental problem. Approximately, a fifth of the global burden of type 2 diabetes can be attributed to air particulate pollution. However, scientific knowledge remains limited about the effects of airborne nanoplastics (NPs) exposure on metabolic diseases. In this experiment, a whole-body exposure system was used to simulate the real atmospheric environment, and three exposure concentrations combined with the actual environmental concentration were selected to explore the effects of airborne NPs on metabolic diseases. Based on histological analyses, metabolic studies, gene expression, metabolites, and molecular signaling analyses, mice exposed to airborne NPs were observed to show a phenotype of systemic inflammation and complete insulin resistance featuring excessive drinking and eating, weight loss, elevated blood glucose, and decreased triglyceride levels. After airborne NPs exposure, mice were intolerant to glucose and tolerant to insulin. In addition, airborne NPs exposure could result in long-term irreversible hyperglycemia. Together, the research findings provide a strong basis for understanding the hazards of airborne nanopollution on metabolic disorders.

Original languageEnglish
Pages (from-to)3108-3117
Number of pages10
JournalEnvironmental Science and Technology
Volume58
Issue number7
Early online date6 Feb 2024
DOIs
Publication statusPublished - 20 Feb 2024

User-Defined Keywords

  • airborne nanoplastics
  • environmental exposure
  • glucose metabolism
  • insulin resistance
  • multiomics analysis

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