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Emerging cardiovascular risks of micro- and nanoplastics: toxic effects and mechanistic pathways
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Tiny plastic particles called micro- and nanoplastics are getting into our bodies through food, air, and skin contact, and researchers have found them building up in people's hearts and blood vessels. This review of existing studies shows these plastic bits may contribute to heart disease by causing inflammation and damaging cells in the cardiovascular system. While more research is needed, this suggests that plastic pollution isn't just an environmental problem—it could be directly harming our heart health.
Micro- and nanoplastics (MNPs), due to their widespread distribution and chemical stability, have emerged as novel environmental contaminants threatening cardiovascular health. Evidence links MNPs to conditions such as atherosclerosis, cardiac fibrosis, myocardial infarction, and other cardiovascular diseases (CVDs). Recently, MNPs have been found within atherosclerotic plaques and in the myocardial tissues of surgery patients, highlighting their close association with cardiovascular pathology. Investigations have demonstrated that MNPs can enter the human body through oral ingestion, inhalation, dermal contact, and medical procedures, and subsequently accumulate in the blood, blood vessels, and cardiac tissues. Once deposited, these particles induce oxidative and endoplasmic reticulum stress, disrupt mitochondrial function, and activate inflammatory signaling pathways, ultimately triggering cell death. These processes contribute to endothelial dysfunction, cardiac damage and fibrosis, vascular smooth muscle cell phenotypic switching, and macrophage foam cell formation, thereby likely contributing to the onset and progression of CVDs. Despite these findings, the potential cardiovascular risks of MNPs and the underlying mechanisms remain largely unexplored. This review summarizes the basic properties of MNPs, their biodistribution within the cardiovascular system, toxic effects, and underlying molecular mechanisms, providing a foundation for future risk assessment and the development of preventive strategies.
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Nano- and Microplastics in the Cardiovascular System: Current Insights and Biological Implications
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Tiny plastic particles from our environment—so small they can enter through the food we eat, the air we breathe, or even our skin—have been found lodged in heart and blood vessel tissue, and this review pulls together what scientists currently know about the damage they might cause, like inflammation, cell damage, and blood vessel problems that could contribute to heart disease. While researchers haven't yet proven these plastics directly cause heart disease in people, the growing evidence is concerning enough that the authors call for better tools to measure plastic exposure and more research into how to prevent harm. The bottom line: microplastics aren't just an environmental issue
Micro- and nanoplastics: A new cardiovascular risk factor?
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This review examines the growing evidence that micro- and nanoplastics may pose risks to the heart and blood vessels. Studies in animals and cell cultures show that these tiny plastic particles can enter the bloodstream, trigger inflammation, promote blood clotting, and damage blood vessel walls. While human data is still limited, the review suggests that micro- and nanoplastic exposure should be considered a potential new risk factor for cardiovascular disease.
Micro- and nanoplastic as new modifiable cardiovascular risk factors
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Tiny plastic particles from everyday pollution, called microplastics and nanoplastics, may be quietly harming your heart, according to this review that pulls together over a decade of research. Scientists found these particles can disrupt cholesterol processing, make blood more likely to clot, and directly damage heart cells, partly by causing inflammation and stress inside cells. While more research is needed to fully understand the risks, this adds plastic pollution to the growing list of factors, alongside diet and exercise, that may affect your cardiovascular health.
Microplastics, Nanoplastics and Heart Contamination: The Hidden Threat
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This review examines growing evidence that micro- and nanoplastics can accumulate in human cardiovascular tissues, including blood, heart muscle, and arterial plaques. Researchers found that these particles may contribute to heart and blood vessel problems through inflammation, oxidative stress, blood clotting, and direct tissue injury. The study identifies plastic particles as a potential new environmental risk factor for cardiovascular health.
Micro- and Nanoplastics as Emerging Cardiovascular Stressors: Mechanisms of Vascular Injury, Atherothrombosis, and Myocardial Dysfunction
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This review summarizes research on tiny plastic particles found in human blood, arteries, plaques and heart tissue. Studies suggest these particles may damage blood vessel linings and trigger inflammation linked to heart disease, but the paper notes current human evidence cannot prove plastics actually cause these conditions.
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