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Microplastics and Nanoplastics in Human Blood: What the Latest Research Shows
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A review of recent evidence that micro- and nanoplastics circulate in human blood, drawing on several detection methods. It covers associations with artery plaque and coagulation and examines plasma exchange and blood donation as research questions. Causation remains an open question.
This article reviews recent evidence that microplastics and nanoplastics circulate in human blood. It summarizes landmark detection studies from 2022–2026, including pyrolysis-GC/MS, µFTIR, Raman, and flow-cytometry findings, and discusses associations with cardiovascular disease, plaque vulnerability, coagulation, and cellular injury. It also examines whether therapeutic plasma exchange or blood donation can reduce circulating particle burden, notes methodological limits and contamination risks, and frames remaining questions of causation and mitigation.
More Papers Like This
Microplastics and Nanoplastics in Human Blood: What the Latest Research Shows
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This review covers studies from 2022 to 2026 that detected micro- and nanoplastics in human blood. It discusses reported associations with cardiovascular disease and clotting, and whether plasma exchange or blood donation changes particle levels. It stresses contamination risks in measurement and that causation is unproven.
Microplastic particles in human blood and their association with coagulation markers
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In a study of 36 healthy adults, microplastics were detected in the blood of 89% of participants, with polypropylene and polyethylene being the most common types found. Higher microplastic levels were associated with changes in blood clotting markers, suggesting that plastic particles in our bloodstream may affect how our blood coagulates, though larger studies are needed to confirm this link.
Effects of micro- and nanoplastics on blood cells in vitro and cardiovascular parameters in vivo, considering their presence in the human bloodstream and potential impact on blood pressure
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This review examines evidence that micro- and nanoplastics can enter the human bloodstream and interact with blood cells, with plastic particles already detected in human blood, blood clots, and artery plaques. While direct evidence linking microplastics to blood pressure changes in humans is still lacking, animal studies and the mechanisms identified -- including blood vessel damage and inflammation -- suggest cardiovascular effects are plausible.
Microplastics and Nanoplastics as Emerging Contributors to Cardiovascular Disease: Mechanisms, Clinical Evidence, and Therapeutic Opportunities
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Researchers review clinical and mechanistic evidence linking microplastics and nanoplastics found in human blood and atherosclerotic plaques to cardiovascular disease, noting that MNP-positive plaques correlate with higher rates of major adverse cardiac events and proposing interaction-mediated sequestration strategies as a potential therapeutic avenue.
Evidence, Mechanisms, and Clinical Implications of Microplastics and Nanoplastics As Emerging Cardiovascular Risk Factors: A Narrative Review
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This review examines growing evidence that micro- and nanoplastics may contribute to cardiovascular health risks, with researchers having found these particles in human artery plaques and blood clots. Evidence indicates that the particles can enter the bloodstream, trigger inflammation, damage blood vessel walls, and potentially increase the risk of heart attacks and strokes. While the evidence is not yet conclusive, the study highlights an emerging area of concern that warrants further investigation into how everyday plastic exposure may affect heart and blood vessel health.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.