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hormone-disruptor


Phthalates in toys are gone, but replaced by what?

February 16th, 2009 · No Comments

By John DeFore
Green Right Now

Last week was the start date of a ban, signed last summer by George Bush, that targets the use of six phthalates in products made for children. Three of the phthalates are permanently forbidden, three are subject to later study, as noted here.

The chemicals, which are added to plastics to make them softer, have been linked to hormone malfunctions and reproductive effects, particularly in boys. Because the substances’ softening quality makes it particularly likely that objects containing them will be chewed by young children, lawmakers have found risks compelling enough to institute the ban despite objections from the plastics industry. (The phthalate ban, which followed a previous ban applicable just in California, only applies to goods manufactured for use by children, which represents less than 5% of the reportedly $1.4 billion U.S. business.)

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BPA – now a potential saboteur of breast cancer treatment

October 10th, 2008 · No Comments

By Barbara Kessler

The news on bisphenol A or BPA just doesn’t get better. The chemical, used to make plastic baby bottles and food can liners, could deliver a double-whammy to women, paving the way for breast cancer, and then boomeranging back to interfere with the treatment for cancer recovery.

A study by University of Cincinnati scientists released this week found that BPA exposure may reduce the effectiveness of chemotherapy treatments for breast cancer patients.

Researchers found that this man-made chemical – already implicated as a potential trigger in breast cancer because it is structurally similar to the estrogenic DES – induced a group of proteins in the body to protect breast cancer cells from the chemotherapy.

Resistance to chemotherapy is already a “major problem for cancer patients, especially those with advanced metastatic disease,” said UC’s Nira Ben-Jonathan, a professor of cell biology who’s been studying BPA for more than a decade.

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