Scientists have found that this flame retardant chemical found in many common objects could greatly damage your fertility.
Scientists at Harvard University have just published a study warning that many common objects in your household may be harming you fertility. Yoga mats, sofas, and even car seats all contain a common flame-retardant chemical that could be preventing people from getting pregnant, the study claims.
The findings, published in the journal Environmental Health Perspectives, examine organophosphate flame retardants (PFRs), which is a class of chemicals used in many everyday objects to make them less flammable. But they may contain a hidden danger, with the study reporting that those with the chemicals in their urine were 10 percent less likely to achieve fertilization.
In addition, they were: 31 percent less likely to have a successful embryo implantation; 41 percent less likely to get pregnant; and 38 percent less likely to have a live birth.
The full statement from Harvard follows below.
Women with higher urinary concentrations of a common type of flame retardant had reduced likelihood of clinical pregnancy and live birth than those with lower concentrations, according to researchers at Harvard T.H. Chan School of Public Health. The study, conducted in the Fertility Clinic at Massachusetts General Hospital, is the first to examine associations between organophosphate flame retardants (PFRs) — which are used in polyurethane foam in many products, including upholstered furniture, baby products, and gym mats — and reproductive outcomes in women.
“These findings suggest that exposure to PFRs may be one of many risk factors for lower reproductive success,” said first author Courtney Carignan, a research fellow in the Department of Environmental Health at Harvard Chan School. “They also add to the body of evidence indicating a need to reduce the use of these flame retardants and identify safer alternatives.”
The study will be published online August 25, 2017 in Environmental Health Perspectives.
One in six couples struggles with infertility–a proportion likely to rise as increasing numbers of people in developed countries delay childbearing. Previous studies have linked exposure to products containing hormone-disrupting chemicals, such as pesticides and phthalates, to infertility and poorer reproductive success.
The flame retardant PentaBDE, used in polyurethane foam, was phased out more than a decade ago after it was linked with negative health effects in animal and epidemiologic studies. PFRs were introduced as a safer alternative, but they have been found in animal studies to cause hormone disruption. Studies have also shown that PFRs can migrate out of furniture and other products into the air and dust of indoor environments.
For this study, the researchers analyzed urine samples from 211 women undergoing in vitro fertilization (IVF) at the Massachusetts General Hospital Fertility Center between 2005 and 2015. The women were enrolled in the Environment and Reproductive Health (EARTH) study, which looks at how environmental chemicals and lifestyle choices affect reproductive health. The statistical analysis took into consideration factors including maternal age and race, smoking history, and body mass index (BMI).
The researchers found that the urinary metabolites (products of a chemical that has been metabolized) of three PFRs– TDCIPP, TPHP, and mono-ITP–were detected in more than 80% of participants. On average, compared to women with lower concentrations of these metabolites, women with higher concentrations had a 10% reduced probability of successful fertilization, 31% reduced probability of implantation of the embryo, and a 41% and 38% decrease in clinical pregnancy (fetal heartbeat confirmed by ultrasound) and live birth.
“Couples undergoing IVF and trying to improve their chances of success by reducing their exposure to environmental chemicals may want to opt for products that are flame-retardant free,” said senior author Russ Hauser, Frederick Lee Hisaw professor of reproductive physiology and acting chair, Department of Environmental Health.
Further research is needed on the potential impact of male partners’ exposure to flame retardant chemicals and on the joint effects on both men and women of exposure to different types of environmental chemicals, the researchers said.
Other Harvard Chan authors include Lidia Mínguez-Alarcón, Paige Williams, and Jennifer Ford.
This study was supported by grants ES009718, ES022955, ES000002, and T32ES007069 from the National Institute of Environmental Health Sciences (NIEHS).
“Urinary Concentrations of Organophosphate Flame Retardant Metabolites and Pregnancy Outcomes among Women Undergoing in Vitro Fertilization,” Courtney C. Carignan, Lidia Mínguez-Alarcón, Craig M. Butt, Paige L. Williams, John D. Meeker, Heather M. Stapleton, Thomas L. Toth, Jennifer B. Ford, and Russ Hauser, Environmental Health Perspectives, August 25, 2017, doi: 10.1289/EHP1021
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Summary: A common type of flame retardant was associated with reduced likelihood of clinical pregnancy and live birth following IVF. Couples undergoing IVF may want to opt for products that are flame-retardant free.