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Related: About this forumBPA substitute could spell trouble Experiments show bisphenol S also disrupts hormone activity
http://www.utmb.edu/newsroom/article8224.aspx[font face=Serif][font size=5]BPA substitute could spell trouble Experiments show bisphenol S also disrupts hormone activity[/font]
[font size=3]A few years ago, manufacturers of water bottles, food containers and baby products had a big problem. A key ingredient of the plastics they used to make their merchandise, an organic compound called bisphenol A, had been linked by scientists to diabetes, asthma and cancer and altered prostate and neurological development. The Food and Drug Administration and state legislatures were considering action to restrict BPAs use, and the public was pressuring retailers to remove BPA-containing items from their shelves.
The industry responded by creating BPA-free products, which were made from plastic containing a compound called bisphenol S. In addition to having similar names, BPA and BPS share a similar structure and versatility: BPS is now known to be used in everything from currency to thermal receipt paper, and widespread human exposure to BPS was confirmed in a 2012 analysis of urine samples taken in the United States, Japan, China and five other Asian countries.
According to a study by University of Texas Medical Branch at Galveston researchers, though, BPS also resembles BPA in a more problematic way. Like BPA, the study found, BPS disrupts cellular responses to the hormone estrogen, changing patterns of cell growth and death and hormone release. Also like BPA, it does so at extremely low levels of exposure.
Our studies show that BPS is active at femtomolar to picomolar concentrations just like endogenous hormones thats in the range of parts per trillion to quadrillion, said UTMB professor Cheryl Watson, senior author of a paper on the study now online in the advance publications section of Environmental Health Perspectives. Those are levels likely to be produced by BPS leaching from containers into their contents.
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http://dx.doi.org/10.1289/ehp.1205826[font size=3]A few years ago, manufacturers of water bottles, food containers and baby products had a big problem. A key ingredient of the plastics they used to make their merchandise, an organic compound called bisphenol A, had been linked by scientists to diabetes, asthma and cancer and altered prostate and neurological development. The Food and Drug Administration and state legislatures were considering action to restrict BPAs use, and the public was pressuring retailers to remove BPA-containing items from their shelves.
The industry responded by creating BPA-free products, which were made from plastic containing a compound called bisphenol S. In addition to having similar names, BPA and BPS share a similar structure and versatility: BPS is now known to be used in everything from currency to thermal receipt paper, and widespread human exposure to BPS was confirmed in a 2012 analysis of urine samples taken in the United States, Japan, China and five other Asian countries.
According to a study by University of Texas Medical Branch at Galveston researchers, though, BPS also resembles BPA in a more problematic way. Like BPA, the study found, BPS disrupts cellular responses to the hormone estrogen, changing patterns of cell growth and death and hormone release. Also like BPA, it does so at extremely low levels of exposure.
Our studies show that BPS is active at femtomolar to picomolar concentrations just like endogenous hormones thats in the range of parts per trillion to quadrillion, said UTMB professor Cheryl Watson, senior author of a paper on the study now online in the advance publications section of Environmental Health Perspectives. Those are levels likely to be produced by BPS leaching from containers into their contents.
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BPA substitute could spell trouble Experiments show bisphenol S also disrupts hormone activity (Original Post)
OKIsItJustMe
Jan 2013
OP
MADem
(135,425 posts)1. Well, this sucks, doesn't it?
Kick for visibility and discussion...
OKIsItJustMe
(19,938 posts)2. Yes, it really does, in a big way
Im surprised there hasnt been more of a reaction.
MADem
(135,425 posts)3. I know--I guess people are too busy arguing about shit that doesn't matter and
won't change.
This post will give the thing a wee kick--maybe some of the night crew will have a look...