Italian Study Reveals Lethal Effects of Micro- and Nanoplastics on Humans
In a recent study conducted by researchers at the University of Campania “Luigi Vanvitelli” in Italy, the potentially lethal impacts of micro- and nanoplastics on humans have been revealed. The study showed that these plastics can “pollute” atherosclerotic plaques, leading to an increased risk of stroke and heart attack in patients compared to those with unpolluted plaques.
Previous studies had already found traces of micro and nanoplastics in various tissues and organs, but the presence of these materials within atherosclerotic plaques adds a new dimension to the dangers they pose. The study, published in the New England Journal of Medicine, highlighted the correlation between the presence of microplastics in the body and the heightened risk of cardiac arrest in humans.
The research was conducted on a group of 257 patients over the age of 65 who underwent carotid endarterectomy, a procedure to remove atherosclerotic plaques blocking blood vessels. The analysis of these plaques revealed the presence of polyethylene (PE) and polyvinyl chloride (PVC) – two widely used plastics – in a significant percentage of cases. Patients with polluted plaques were found to have up to twice the risk of cardiovascular events, such as heart attacks and strokes, compared to those without signs of micro- and nanoplastics.
Raffaele Marfella, the study’s creator, explained that the inflammatory effect of micro- and nanoplastics could lead to greater instability of the plaques, increasing the risk of rupture and the formation of clots that can cause heart attacks or strokes.
In response to the findings, epidemiologist Philip J. Landrigan emphasized the need to reduce the spread of plastics, especially single-use items. Landrigan stated, “The low cost and convenience of plastic are deceptive and mask major harms, such as its contribution to outcomes associated with atherosclerotic plaque. We need to encourage patients to reduce their plastic use to mitigate these risks.”
The study’s results underscore the urgent need to address the harmful effects of micro- and nanoplastics on human health and the environment, highlighting the importance of taking steps to reduce plastic consumption and pollution.