A group of scientists found that the microplastics used on objects such as food packaging and paint on human veins can pass through blood vessels to vascular tissuebut not yet identified may could be the health consequences.
The professionals found some 15 microplastic particles per gram of venous tissue and five different types of polymers. Among the most prominent is the alkyd resin, present in paints, varnishes and enamels synthetics; he polyvinyl acetate (PVAC): An adhesive found in food packaging and nylon; and EVOH and EVAused in flexible packaging materials.
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The study was carried out by a team from the University of Hull and Hull York Medical School, in the United Kingdom, which also included researchers from other British university hospitals, and was published in the specialized journal plus one. The test consists of analyze the tissue of the great saphenous vein drawn from patients who underwent heart bypass surgery.
“We found ourselves finding them,” said Professor Jeanette Rotchell, an environmental toxicologist at the university. Despite the fact that she was already aware of the presence of microplastics in the blood, she maintained that “it was not clear if you could cross blood vessels to vascular tissue.
“While we don’t yet know the indications for this in human health, what we can say is that based on studies using cells grown in dishes, cause inflammation and stress responsesstated Dr. Rotchell.
The saphenous veins are blood vessels in the lower extremities that help send blood from the legs and feet to the heart. The study showed that the levels of microplastics observed were similar or superior to those informed for colon and lung tissues.
Veins, like arteries, consist of three layers (tunica intima, tunica media, and tunica adventitia) of and are used in procedures coronary artery bypass graft. According to statistics, between 40 and 50% of these procedures ultimately fail after 10 years due to a variety of factors, which are not always clear.
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So far, no study has looked at whether microplastics can infiltrate or cross some biological barriernor has the potential link between the exposure to them and the results of the grafts. On this point, Professor Mahmoud Loubani, co-author of the study and honorary professor of cardiothoracic surgery, said that the saphenous vein graft failure it was a long data problem after coronary artery bypass surgery.
“The presence of these microplastics in the veins may well work a role in the damage of the interior of the vein and cause it to crash over time. We need to identify if there are any matches and find ways to eliminate them,” he concluded in the report.
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