Toxic Chemicals in Everyday Products can Cause Uterine Fibroids

Manufacturers use environmental phthalates in numerous industrial and consumer products, and they’ve also been detected in medical supplies and food. Although they are known to be toxic, they are currently unbanned in the U.S.

“Thesetoxic pollutants are everywhere, including food packaging, hair and makeup products, and more, and their usage is not banned,” said corresponding study author Dr. Serdar Bulun, chair of the department of obstetrics and gynecology at Northwestern University Feinberg School of Medicine and a Northwestern Medicine physician. “These are more than simply environmental pollutants. They can cause specific harm to human tissues.”


“Up to 80% of all women may develop a fibroid tumor during their lifetime”, Bulun said. One-quarter of these women become symptomatic with excessive and uncontrolled uterine bleeding, anemia, miscarriages, infertility, and large abdominal tumors necessitating technically difficult surgeries.

The new study found women with a high exposure to certain phthalates such as DEHP (used as a plasticizer to increase the durability of products such as shower curtains, car upholstery, lunchboxes, shoes and more) and its metabolites have a high risk for having a symptomatic fibroid.

Prior epidemiological studies have consistently indicated an association between phthalate exposure and uterine fibroid growth, but this study explains the mechanisms behind that link. The scientists discovered exposure to DEHP may activate a hormonal pathway that activates an environmentally responsive receptor (AHR) to bind to DNA and cause increased growth of fibroid tumors.

“Interestingly, AHR was cloned in the early ’90s as the receptor for dioxin, the key toxin in the agent orange,” Bulun said. “The use of agentorange during the Vietnam war caused significant reproductive abnormalities in the exposed populations; and dioxin and AHR were thought to be responsible for this.”

Source: Eurekalert

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