Three New Studies of BPA

Europe

The exposure of European citizens to bisphenol A (BPA), one of the most talked about endocrine disruptors,has decreased since 2006 although there are new sources, which have yet to be fully assessed. Pending final results and of new indications, increases the amount of data that seem to nail the compound to its responsibilities in a large number of diseases and disorders of various kinds.

The new report started with a reassuring message: in infants and children up to three years, the average exposure is 375 nanograms per kilogram body weight ( ng / kg), that is, a value that is not 1% of the allowable limit and about 30 times lower than that recorded in 2006; also for adults the situation is good: the average rate is in fact of 132 ng / kg weight, with a decrease of more than 11 times in 2006.

To arrive at these values, the they took into account two types of data: those resulting from exposure estimates for all possible sources of BPA (including thermal paper, which alone could form up to 15 % of the total, and then the air, dust, toys, dental sealants and other medical devices, cosmetics and more, quantified individually) and then integrated them with the real data of the urinary concentration of BPA reported in numerous studies. Among the most significant is confirmation of the fact that the main absorption of BPA for children between three and ten years is through any diet, as is the case for adults, which will take BPA primarily through meat and canned foods.

Now the document , not yet final, it was made ​​available to the public for comments and additions until 15 September, and then will be reworked until it assumed its final form, the publication of which is expected in the coming months. Meanwhile it hopes to fill some gaps such as those that exist on thermal paper, ubiquitous but not yet studied in a satisfactory manner, especially with regard to skin absorption.

Harvard University

Researchers at Harvard University and published their study in Human Reproduction. It has highlighted the possible effects of the substance sull'ovocita human. The authors asked 121 women who were attempting in vitro fertilization to donate ova, and have collected 352.Then they put the eggs in culture and treated them with BPA and found that it caused a number of abnormalities in chromosomes, induced a kind of acceleration of vesting and other phenomena normally associated with infertility and the development of malformed fetuses. Although it is said that the abnormalities seen may be different inside the uterus.They wanted to point out these data deserve further investigation and a further caution by women of childbearing age.

University of Michigan

Researchers from the University of Michigan in Ann Arbor studied almost 3,400 children, and found a possible link between BPA and childhood obesity. In total, 18% of participants were obese. Over all, 25% who had higher levels of BPA in the urine had more than double the chance of being obese, a fact that suggests that children who have more PBA in the body are also the most at risk of becoming obese.

Even if the use is declining and many countries prohibit the presence of the compound in certain items such as tableware for children and polycarbonate baby bottles, the presence of BPA is so widespread that it is impossible to avoid contact and absorption. However, you can always make wise choices, especially when it comes to children, try not to give them foods that have been stored in plastic and cans treated with BPA.

My conclusion

People who are in favor of BPA make the point that BPA is rapidly broken down and doesn’t stay in the blood a long time.They tend to dismiss research that uses urine rather than the blood to determine the amount of BPA. The problem is that we are continually dosing ourselves with BPA

all day long. When we get a cash register receipt,when we use a plastic fork, when we eat food from can goods, and when we drink a beverage in a can we get BPA in our system. It is in dust. It is in the ocean. If we get it out of our system quickly we are will reinfect ourselves in the next few minutes.

I have seen only one long term study. If you decide to ignore the hundreds of studies that found problems with BPA it doesn’t make sense that a chemical that the body thinks of as estrogen will not have a long term effect.

The Japanese have managed to get BPA out of their cans and plastic bottles and it didn’t ruin their economy. Maybe we should stop worrying about chemical companies profits.and worry about our health.