The most devastating earthquakes of this century
In light of the horrific earthquake that has wrought devastation in Türkiye and Syria, RT looks at the most powerful quakes in recent years

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Scott Ritter

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Microplastics found in human veins
Researchers discovered 15 particles of the contaminants per gram of vein tissue in the first study of its kind
Microplastics have been found for the first time in human vein tissue, a team of researchers from the University of Hull revealed last week. Five distinct types of microplastic were discovered in samples taken from the saphenous (leg) veins of patients undergoing heart bypass surgery.

“We were surprised to find them,” Professor Jeanette Rotchell said in a press release accompanying the paper’s publication in the journal PLoS One. “We already know microplastics are in blood…but it was not clear whether they could cross blood vessels into vascular tissue and this work would suggest they can do just that.”

The UK-based researchers found an average concentration of 15 particles of plastic per gram of vein tissue, similar to or higher than the levels found in lung and colon tissue, but observed that the shape and types of plastic found in the vascular tissue was markedly different from other tissue types.

“These first human tissue analyses suggest that the distribution of the microplastics’ predominant types may be tissue-specific,” Rotchell observed.

The most common types of plastic found in the samples include alkyd resin, which is found in synthetic paints and varnishes; polyvinyl acetate, an adhesive used in food packaging and shipping; nylon, and EVOH-EVA, used for food packaging and watertight lamination.

While Rotchell stressed that “we don’t yet know the implications of this on human health,” she acknowledged that microplastics had been shown to cause “inflammation and stress responses” in laboratory settings.

Co-author Professor Mahmoud Loubani added that the presence of the microplastics might contribute to the failure of coronary artery bypass surgery involving grafts from the saphenous veins, suggesting the contaminants “may well play a role in damaging the inside of the vein leading to it becoming blocked with the passage of time.” Removing the microplastics was a possibility, he said in the press release.

The team has previously discovered the ubiquitous pollutants in blood and lung tissue, as well as in surgical operating theaters. By some estimates, 15 tons of plastic waste enters Earth’s oceans every minute, breaking down into smaller particles and entering the body through the food chain and through the air people breathe.

「ジャネット・ロッチェル教授は、雑誌PLoS Oneに掲載されたこの論文のプレスリリースで、「私たちは、これらを発見したことに驚いています。"我々は、マイクロプラスチックが血液中にあることを既に知っています...しかし、それらが血管を越えて血管組織に入ることができるかどうかは明らかではありませんでした。" この仕事は、それらがまさにそれを行うことができることを示唆するでしょう。





共著者のMahmoud Loubani教授は、マイクロプラスチックの存在が、伏在静脈からのグラフトを使用する冠動脈バイパス手術の失敗に寄与しているかもしれないと付け加え、汚染物質が「時間の経過とともに静脈の内部を損傷し、閉塞に至る役割を果たす可能性が十分にある」と示唆した。マイクロプラスチックの除去は可能であると、プレスリリースで述べている。


posted by ZUKUNASHI at 18:38| Comment(0) | 健康・病気


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Low immunity, overwhelmed hospitals fuel Covid-19 deaths in ageing Japan

posted by ZUKUNASHI at 17:39| Comment(0) | Covid19

The report that Pfizer tried to hide

posted by ZUKUNASHI at 17:23| Comment(0) | コロナワクチン