cultureicon t1_ita81l1 wrote

Looks like they can inject them with a number of chemicals, or use genetic engineering:

Rat: Wistar and Lewis rats are injected intraperitoneally with azaserine to induce acinar cell carcinoma of the pancreas, with liver, lung and lymph node metastasis 6, 7. However, the lesions in this model lack a typical duct-like structure and of ten occur alongside tumors of other organs (mammary, liver, kidney). The chemicals 4-hydroxyaminoquinoline-1-oxide 8, nafenopin 9, clofibrate 10, N -(N-methyl-N-nitrosamide)-L-ornithine 11 and different N-nitro compounds 7 can induce acinar cell lesions without a duct-like structure. Vesselinovitch et al. found that topical benzopyrene can induce adenocarcinoma in rats. They implanted dimethylbenzanthracene crystal powder into the pancreas of Sprague-Dawley rats, and approximately 80% of them developed spindle cell sarcoma and poorly differentiated adenocarcinoma. Other researchers using this method have found ductal cell proliferation, tubular adenocarcinoma, acinic cell carcinoma, fibrosarcoma, and invasive ductal adenocarcinoma.


cultureicon t1_ircs1ew wrote

I'll admit I didn't read the study because its paywalled and the preview gives absolutely zero useful information.

If the goal is to reduce microplastics in the environment all of these researchers should immediately pivot to researching alternatives to plastic tires, and find a way to convince the world to move away from synthetic fibers.

In other words if they managed to stop this sewer practice they would reduce microplastics by .001% (or whatever the study claims it is)