Everyday chemicals linked chronic disease in men

Chemicals found in plastics linked to chronic disease in men: Study

9:51 AM, 17th July 2017
Phthalates are a group of chemicals widely used in common consumer products. (File photo)
Phthalates are a group of chemicals widely used in common consumer products. (File photo)

ADELAIDE, AUSTRALIA: Researchers from the University of Adelaide and the South Australian Health and Medical Research Institute (SAHMRI) have found that chemicals in everyday plastics are linked to cardiovascular disease, type-2 diabetes and high blood pressure in men.

The researchers investigated the independent association between chronic diseases among men and concentrations of potentially harmful chemicals known as phthalates.

The results of the study is published in the journal Environmental Research.

Phthalates are a group of chemicals widely used in common consumer products, such as food packaging and wrappings, toys, medications, and even medical devices.

Researchers found that of the 1500 South Australian men tested, phthalates were detected in urine samples of 99.6 percent of those aged 35 and over.

"We found that the prevalence of cardiovascular disease, type-2 diabetes and high blood pressure increased among those men with higher total phthalate levels," said senior author associate professor Zumin Shi, from the University of Adelaide and a member of SAHMRI's nutrition & metabolism theme.

"While we still don't understand the exact reasons why phthalates are independently linked to disease, we do know the chemicals impact on the human endocrine system, which controls hormone release that regulates the body’s growth, metabolism, and sexual development and function.

"In addition to chronic diseases, higher phthalate levels were associated with increased levels of a range of inflammatory biomarkers in the body," he said.

Age and western diets are directly associated with higher concentrations of phthalates. Previous studies have shown that men who ate less fresh fruit and vegetables and more processed and packaged foods and drank carbonated soft drinks have higher levels of phthalates in their urine.

"Importantly, while 82 percent of the men we tested were overweight or obese – conditions known to be associated with chronic diseases – when we adjusted for this in our study, the significant association between high levels of phthalates and disease was not substantially altered," Shi added.

"In addition, when we adjusted for socioeconomic and lifestyle factors such as smoking and alcohol, the association between high levels of phthalates and disease was unchanged."

Shi said that although the studies were conducted in men, the findings are also likely to be relevant to women.

"While further research is required, reducing environmental phthalates exposure where possible, along with the adoption of healthier lifestyles, may help to reduce the risk of chronic disease," he said.

This research has been supported by the National Health and Medical Research Council (NHMRC).

© University of Adelaide News

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