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Microplastics in neonates: an overlooked cost of parenteral nutrition

Frontiers in Public Health 2026

Summary

Researchers detected microplastics in neonatal blood at levels that increased with parenteral nutrition duration, with larger particles over 60 µm found exclusively in long-term recipients — suggesting that intravenous nutrition delivery systems may be an underrecognized iatrogenic source of microplastic exposure in vulnerable newborns.

Models
Study Type Human

Introduction: Microplastics (MPs) are emerging contaminants that raise concerns due to their potential health effects on vulnerable neonates who may be exposed to medical devices. Methods: This prospective study investigated the presence of MPs in neonatal blood in relation to parenteral nutrition (PN) duration. A total of 12 neonates were categorized into long-term (>14 days), short-term (3-7 days), and non-exposed control groups. MPs were analyzed using confocal micro-Raman spectroscopy. Results: < 0.05), demonstrating a dose-response relationship with PN duration. Notably, larger MPs (>60 μm) were found exclusively in the long-term group. Discussion: These preliminary findings, derived from a small sample cohort, suggest that the PN system may serve as a potential iatrogenic source of MPs for neonates. Clinical trial registration: NCT07326761.

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