Why do these scientists not know in 2022 that plastic was found in organs back in 2020?
… A Dutch study published in the Environment International journal on Thursday examined blood samples from 22 anonymous, healthy volunteers and found microplastics in nearly 80 percent of them.
Half of the blood samples showed traces of PET plastic, widely used to make drink bottles, while more than a third had polystyrene, used for disposable food containers and many other products.
“This is the first time we have actually been able to detect and quantify” such microplastics in human blood, said Dick Vethaak, an ecotoxicologist at Vrije Universiteit Amsterdam.
“This is proof that we have plastics in our body—and we shouldn’t,” he told AFP, calling for further research to investigate how it could be impacting health.
“Where is it going in your body? Can it be eliminated? Excreted? Or is it retained in certain organs, accumulating maybe, or is it even able to pass the blood-brain barrier?”
The study said the microplastics could have entered the body by many routes: via air, water or food, but also in products such as particular toothpastes, lip glosses and tattoo ink.
“It is scientifically plausible that plastic particles may be transported to organs via the bloodstream,” the study added. …
Searching for “plastic in organs” found multiple articles from 2020:
… To find out, the researchers collaborated with Diego Mastroeni, Ph.D., to obtain samples from a large repository of brain and body tissues that was established to study neurodegenerative diseases, such as Alzheimer’s. The 47 samples were taken from lungs, liver, spleen and kidneys — four organs likely to be exposed to, filter or collect microplastics. The team developed a procedure to extract plastics from the samples and analyze them by ?-Raman spectrometry. The researchers also created a computer program that converted information on plastic particle count into units of mass and surface area. They plan to share the tool online so that other researchers can report their results in a standardized manner. “This shared resource will help build a plastic exposure database so that we can compare exposures in organs and groups of people over time and geographic space,” Halden says.
The method allows the researchers to detect dozens of types of plastic components within human tissues, including polycarbonate (PC), polyethylene terephthalate (PET) and polyethylene (PE). When paired with a previously developed mass spectrometry assay, plastic contamination was detected in every sample. Bisphenol A (BPA), still used in many food containers despite health concerns, was found in all 47 human samples. …
It’s even on WebMd:
… Researchers found evidence of plastic contamination in tissue samples taken from the lungs, liver, spleen and kidneys of donated human cadavers.
“We have detected these chemicals of plastics in every single organ that we have investigated,” said senior researcher Rolf Halden, director of the Arizona State University (ASU) Biodesign Center for Environmental Health Engineering.
There’s long been concern that the chemicals in plastics could have a wide range of health effects ranging from diabetes and obesity to sexual dysfunction and infertility.
But the presence of these microscopic particles in major organs also raises the potential that they could act as carcinogenic irritants in much the same way as asbestos, Halden explained. …
Apparently, the study was not published. Why not?
What happened to the sharing of resources?
What is going on?