Microplastics detected for the first time in the lungs of living people


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Over the past decade, scientific studies have repeatedly demonstrated the extent (growth) of microplastic air pollution sober in the air, sober in the water and even sober food. Researchers are increasingly worried, as the plastic becomes ubiquitous and exposure to microparticles sober stems from that is almost inevitable. Cuando a study published in March revealed the presence of microplastics in human blood for the first time, a recent one more soberly supporting this time demonstrating their presence in the lungs. It is also the first study to reveal the presence of microplastics not only in living people, but also in the lower regions of the lungs, where the airways are narrower.

Using and throwing away sober plastic objects, these small daily gestures that seem innocuous, repeated over decades by billions of us, have profoundly upset the subtle sober balance of our environment. We sober product and sober rejects sober effect so that finds sober plastic residues almost everywhere. We have even found them in the most unsuspected places, such as Everest or in the abyssal depths at the summit.

They are now even part of the microparticles sober dust in the air around us. It is therefore quite logical that they are inhaled and manage to infiltrate our body.

Inhaled microplastics penetrate sober depth the airways

The new study, conducted by a sober sober research team at a sober sober medicine faculty Hull You are able to in the UK, demonstrates how inhalation is an important route of exposure to air pollution from microplastics. Inspired by the nose, these reach the lungs and enter their complex network of bronchi and bronchioles. lining these airways catch much of the sober inhaled dust particles. The dust-laden mucus is then evacuated to the stuff via the movement of the cilia, covering the bronchial walls which. Then just sober cough and expectorate could get rid. However, some of the dust microparticles (including microplastics) manage to thwart this integrated air treatment system.

These infiltrated microparticles then reach the bronchioles and the air sacs, unlike the upper bronchi, which lack vibrating cilia. It is in this precise case that the immune system intervenes, in an attempt to eliminate these foreign particles. However, it is still quite uncommon (especially in a healthy person) for microparticles of dust to reach these specific areas or not to be eliminated immediately. The authors of the new study, published in Technology Immediate , were then both surprised and alarmed by discovering microplastics deeply embedded in the lower respiratory tract.

We did not expect to find such a large number of sober particles (plastics) in the lower regions of the lungs, or at least not sober this size of , explains in a press release Laura Sadofsky, sober lecturer in respiratory medicine at a sober medicine faculty Hull You are able to and sober primary author of the article. This is surprising, since the smaller airways are in the lower portions of the lungs, and it was expected that particles of these sizes would be filtered or trapped before getting this far

, she asks.

According to the group of experts, polyethylene (component for example plastic bags) was among the most abundant microplastics in the lower lungs. There was also nylon (a synthetic fiber found in many clothes) and resin (found in the rubber tires). Although the health effects are not yet clear, a new study demonstrates the urgent need for more research in this direction.

11 lungs on 13

To be able to carry out their studies, the researchers took samples from the tissues from the lungs sober patients undergoing surgery. While previously microplastics had already been detected in the lungs after autopsies, scientists this time discovered them for the first time in living lung tissue.

Overall, 11 sober microplastic particles have to recognize in 11 of the 13 samples taken. According to the experts, this figure is higher considerably than those revealed by all the previous checks. 11 particles were detected in an upper part of the lung, and others in the middle part, while the 21 remaining big were found in the lower part, it was unexpected that.

Furthermore, among the sober microplastic forms found in the samples, 11 are commonly used in day-to-day ; they make up packaging, bottles, ropes, etc. In addition, the rate of microplastics in men was much higher than in women.

According to the authors of the study, a characterization of the fates and Low levels of microplastics will allow low-level reproduction of laboratory conditions in order to better understand the has an effect on health.

Supply: Technology Immediate