New evidence from a polyethylylene (PE) safety analysis shows that it is unlikely to cause cancer or other serious health effects.
The study was published today in the journal Nature Communications.
The authors say they have been unable to replicate the study because of the small sample size and the lack of control groups.
The results suggest that PEET is not associated with the incidence of cancer, according to the study’s lead author, Michael Wainwright from the Department of Environmental Health Sciences at the University of Queensland in Brisbane.
Mr Wainwrights group examined the epidemiological literature on PEET and the polyester polyethylenoate (PPEO) used in the industry.
He says the evidence is clear that the polymer used in PEET does not cause cancer, but that there is some evidence to suggest it may increase the risk of cancer and that people who use PEET should be aware of this.
The group analysed data from the Australian National Health and Medical Research Council (ANHMRC) and the National Toxicology Program (NTP) to assess the effects of PEET on the human body.
The ANHMRc is an independent, multidisciplinary research group established by the Health Protection and Promotion Commission (HPPC).
It studies the causes and consequences of environmental contaminants in humans and the environment.
The NTP has been working on PEED since 1998.
“There’s been a lot of information published that suggests that PEED can increase the risks of cancers, especially of the bladder, but we’re not sure of the mechanism,” Mr Wainswons group says.
“PEET is known to cause the formation of polyethylenic polymers, which are the most toxic types of polyester.”
The authors also looked at data from other research into the effects on human health of PEED and the health effects of polyesters and polyethyleners.
They say there are some studies showing that PE ET is less toxic than the polyesters.
The most recent data came from a meta-analysis of 14 studies involving more than 1,000 participants.
In that analysis, the researchers found that the risk for cancer in people who used PEET was 0.05-0.6 per cent for the most common types of cancer.
They found no evidence that people using PEET were more likely to develop bladder cancer, lung cancer, pancreatic cancer or skin cancer.
The research team says it has not been able to replicate that study because the sample size was small.
They did find a small number of studies that suggested a higher risk of prostate cancer, breast cancer and bladder cancer in PE ET users.
They also found that there was no evidence of a link between cancer incidence and use of PE ET.
They recommend people with kidney disease, those with renal disease, and people who have a family history of cancer should be cautious about using PE ET or polyesters or polyethylens.
The researchers say the research should be seen as “just one piece of the puzzle” in the larger picture of polymers and PEET.
The findings are important because it highlights the need to review polyester and polypropylene use to ensure that they are safe and effective in the use of products such as PEET, Mr Wayswons team says.
They do note that there have been some studies of PEAT in humans that have raised concerns about the carcinogenicity of PE and the potential for increased risks.
They believe the current evidence does not show any of those issues to be the case.
The new research comes after the Australian Federal Government in January commissioned a study to look at the health impacts of polypropylene use in the Australian manufacturing industry.
The government is also funding research into polyethyleneglycol, a type of polystyrene.
Professor Michael Wainsworth says that while there is a need for better knowledge about PEET’s potential health effects, it is important to consider that there are many different types of PE.
He also points out that polyethylENE glycol is a synthetic polymer used as a base for many plastics and that there may be other ways PEET can be used to produce plastic that is safer.
“Polyethylene is a good alternative for making polystyrenes and polycarbonates and has some health benefits,” he says.
Professor Wainswa said the results of the ANHMSC and NTP studies provide a “significant amount of new evidence”.
“The results of these studies suggest that there’s some evidence that PEETS cancer risk is low,” he said.
“The problem is that there isn’t enough evidence to show that PEES cancer risk has increased, but the results do suggest that it has decreased.”
The researchers also note that the use and abuse of PE can have other negative health consequences, including the development of chronic kidney disease and liver disease.
“We think the most important thing to be aware about is