Pubertal Development in Young Girls Disturbed Following Exposure to Cosmetics

Pubertal development in young girls may get disturbed following exposure to three common chemical classes-phenols, phthalates and phytoestrogens.

Pubertal development in young girls may get disturbed following exposure to three common chemical classes-phenols, phthalates and phytoestrogens, a recent study has revealed.

"Research has shown that early pubertal development in girls can have adverse social and medical effects, including cancer and diabetes later in life," said Dr. Mary Wolff, Professor of Preventive Medicine and Oncological Sciences at Mount Sinai School of Medicine.

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"Our research shows a connection between chemicals that girls are exposed to on a daily basis and either delayed or early development. While more research is needed, these data are an important first step in continuing to evaluate the impact of these common environmental agents in putting girls at risk," Wolff added.

Phenols, phthalates and phytoestrogens are among chemicals known as endocrine disruptors, which interfere with the body's endocrine, or hormone, system.

They are found in a wide range of consumer products, such as nail polishes, where they increase durability, and in cosmetics, perfumes, lotions, and shampoos, where they carry fragrance.

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Some are used to increase the flexibility and durability of plastics such as PVC, or are included as coatings on medications or nutritional supplements to make them timed-release.

Wolff and colleagues analyzed the impact of exposure to environmental agents in a study that included 1,151 girls from New York, greater Cincinnati and northern California.

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The girls were between 6- and 8-years-old at enrollment and between 7 and 9 at analysis. Researchers collected urine samples from the study participants and analyzed them for phenols, phthalates, and phytoestrogens, including 19 separate urine biomarkers.

he data showed that the three classes of chemical compounds were widely detectable in the study population, and that high exposure to certain chemicals was associated with early breast development.

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The strongest links were seen with phthalates and phytoestrogens, which were also among the highest exposures. One phenol, two phytoestrogens, and a subset of phthalates (those found in building products and plastic tubing) were associated with later puberty.

However, the phthalates found in personal products such as lotion and shampoo, especially those with fragrance, were related to earlier breast and pubic hair development.

"We believe that there are certain periods of vulnerability in the development of the mammary gland, and exposure to these chemicals may influence breast cancer risk in adulthood. Dietary habits may also have an impact. Further study is needed to determine how strong the link is," Wolff said. (ANI)

The study is currently published online in the journal Environmental Health Perspectives.

Source-ANI
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