Onderzoeker waarschuwt voor
bisphenol A (BPA) in plastic
Professor Fred vom Saal van de University
of Missouri, Colombia (biological sciences) waarschuwt ons ervoor dat plastic fabrikanten
net zo gevaarlijk zijn voor onze gezondheid als de sigarettenindustrie. Bisphenol A (BPA)
is een stof die voorkomt in babyflesjes (!!), plastic folie, magnetron bordjes,
voedselverpakkingen etc. De professor waarschuwt ervoor dat deze stoffen onze sexhormonen
nabootsen en zelfs in minimale hoeveelheden hersenschade, abnormale orgaan ontwikkeling en
hyperactiviteit (ADHD?) kan veroorzaken.
Terwijl de industrie zegt dat slechts een
bepaalde hoeveelheid schadelijk is zegt hij dat al 1/2500 daarvan al schadelijke effecten
veroorzaakt. Het zal niet de eerste keer zijn dat de industrie er een eigen waarheid op na
houdt, de kachel moet roken! Deze klokkenluider kreeg gelijk de volle laag van de chemie
kartels maar de onderzoeker gaat door omdat met name de schade voor babies permanent zijn.
Finding strength: Determined
science researcher Dr. Fred vom Saal calls for removal of chemical used in plastic. Fred vom Saal
averages a 14-hour workday. As an MU biological sciences professor, his days begin at 6
a.m., and from then until late evening, he conducts laboratory research, writes papers,
meets with students and browses the Internet. For all his efforts, vom Saal has one goal:
to see the day when some plastics corporations are seen in the same light as companies
that make asbestos or sell tobacco. Since 1995, vom Saal has studied the effects of
bisphenol A, or BPA, a chemical found in many plastics and in the linings of steel food
cans that prevent food from acquiring a metallic taste. BPA mimics the effects of powerful
sex hormones, vom Saal says, and can cause brain damage, abnormal organ development and
hyperactivity even when present in small doses. “There’s over 6 billion pounds
of this made and used a year,” explained vom Saal, who works with MU professors Susan
C. Nagel and Wade Welshons on his research. “It’s one of the biggest chemicals
in production in the world.” http://columbiamissourian.com/news/print.php?ID=23027
Enkele recente studies:
Developmental Programming: Differential
Effects of Prenatal Exposure to Bisphenol-A or Methoxychlor on Reproductive Function
These findings suggest that prenatal BPA
and MXC exposure havelong-term differential effects on a variety of
reproductiveendocrine parameters that could impact fertility.
Evidence of Altered Brain Sexual
Differentiation in Mice Exposed Perinatally to Low, Environmentally Relevant Levels of
Bisphenol A
Data from these studies revealed
significantsex differences in the vehicle-exposed offspring that were notobserved in the BPA-exposed offspring. These data indicate thatBPA may
be capable of altering important events during criticalperiods of brain
development.
Developmental Exposure to Estradiol and Bisphenol A Increases Susceptibility to Prostate
Carcinogenesis and Epigenetically Regulates Phosphodiesterase Type 4 Variant 4
In total, these findingsindicate
that low-dose exposures to ubiquitous environmentalestrogens affect the
prostate epigenome during development and,in so doing, promote prostate
disease with aging.
Estrogenic chemicals in plastic and oral contraceptives disrupt development of the
fetal mouse prostate and urethra
Acceleration in the rate of proliferation
of prostate epithelium during fetal life by small amounts of estrogenic chemicals could
permanently disrupt cellular control systems and predispose the prostate to disease in
adulthood.
Toen onze zoon, Tom geboren werd, wilde wij
zo veel mogelijke veilige producten gebruiken en hebben in het buitenland de Bfree fles
gekocht omdat deze gemaakt is van veiliger plastic vrij van Bisphenol A.
Nadat wij meer informatie vergaarden over
de schadelijke stof Bisphenol A, waren we zeer verbaasd dat in heel Europa bijna geen
plastic babyflessen te verkrijgen zijn die deze schadelijke stof niet bevatten. We hebben
toen ons bedrijf opgericht en distribueren nu in de Benelux de Bfree producten die allen
vrij zijn van Bisphenol A. Omdat consumenten, verloskundigen, inkooporganisaties zeer
naïef omgaan met de gevaren van deze stof in plastic babyflessen, hebben wij de missie op
ons genomen om deze mensen juist te informeren. We hebben contact met WECF, Ecobaby en
Greenpeace. Zij adviseren om geen policarbonaat plastic babyflessen te gebruiken vanwege
de Bisphenol A die vrijkomt uit deze plastic flessen
Scientist's endorsement of bisphenol A
under review
The head of the Health Canada scientific team studying the safety of bisphenol A has been
abruptly reassigned, while the department investigates claims he is too biased in favour
of the chemical to objectively analyze it.
Estradiol and Bisphenol A Stimulate
Androgen Receptor and Estrogen Receptor Gene Expression in Fetal Mouse Prostate Mesenchyme
Cells
Hormonal alterations during development have lifelong effects on the prostate
gland. Endogenous estrogens, including 17?-estradiol (E2) , and synthetic estrogenic
endocrine disruptors, such as bisphenol A (BPA) , have similar effects on prostate
development. Increasing exposure to estrogens within the low-dose, physiologic range
results in permanent increases in the size and androgen responsiveness of the prostate,
whereas exposure within the high-dose, pharmacologic range has the opposite effects. http://www.ehponline.org/members/2007/9804/9804.html
Toxic worries spur glass baby bottles'
comeback
Glass baby bottles, replaced decades ago by unbreakable plastic, are
making such a comeback that parents can't get their hands on them.Independent tests done
for the San Francisco Chronicle and reported in November found bisphenol A, a chemical
that mimics estrogen, in a baby bottle and several toys. http://www.detnews.com/apps/pbcs.dll/article?AID=/
20070411/LIFESTYLE03/704110322/1040
Plastic Baby Bottles Leach Toxic
Chemical
Several popular baby bottle brands have been found to leach
potentially harmful levels of a toxic chemical linked to developmental, neural and
reproductive problems, according to a study released today by an environmental policy
group. http://cbs5.com/topstories/local_story_058144437.html
Bisphenol A On Trial
Bisphenol A (BPA), a weak synthetic estrogen used in a variety of
consumer products ranging from baby bottles to resins that line food and beverage
containers, has been linked in some studies to adverse health effects in rodents,
including obesity, cancer and insulin resistance. There is growing concern that the
chemical may cause similar adverse effects in humans, particularly in babies and young
children. http://www.medicalnewstoday.com/medicalnews.php?newsid=68084
US panel to mull food container
chemical's safety
Independent experts convened by the U.S. National Institutes of Health will meet next week
to review whether exposure to a chemical commonly found in plastic products like food
containers and baby bottles causes health problems. Separately, an environmental group
said new laboratory tests at the University of Missouri found that the chemical, bisphenol
A, leached into liquids at potentially dangerous levels from baby bottles sold by five
leading brands. http://www.sun2surf.com/article.cfm?id=17137
Class-action lawsuit filed in California
over Bisphenol-A in baby bottles
A class-action lawsuit has been filed in Los Angeles
Superior Court against five leading manufacturers of polycarbonate (PC) baby bottles over
the presence of Bisphenol-A (BPA). The five makers are Gerber, Evenflo, Avent, Playtex,
and Dr. Brown’s. According to one laboratory report, when the baby bottles are
heated, potentially dangerous levels of BPA leak into the contained liquid. The lawsuit
cites a link between BPA and conditions such as early puberty and possible autism. While
BPA in PC has been found safe in Europe, it is being deemed dangerous in California. http://www.modplas.com/inc/mparticle.php?section=
eweekly&thefilename=eweekly04012007_14
Is it safe? Depends who you ask
Canadian government scientists have already
classified BPA as "inherently toxic." Last year, Environment Canada and Health
Canada selected BPA as one of 200 substances that a preliminary review deemed possibly
dangerous and in need of thorough safety assessments. Under the assessment, the plastics
industry will be challenged to provide data to prove BPA poses no risk to humans or the
environment. It could take at least three years to complete. http://www.canada.com/ottawacitizen/news/arts/story.html?id=
2ecd78a7-4d7c-4a9f-b2af-3f049bead136&k=63169&p=3
Chemical Linked to Birth Defects Found
at Unsafe Levels in Canned Food
In the most comprehensive U.S. tests for an
industrial chemical used to line cans of foods, an independent laboratory found a compound
linked to birth defects in more than half of the samples of canned fruit, vegetables,
soda, and baby formula from supermarket shelves, according to an Environmental Working
Group (EWG) report released today. http://www.ewg.org/reports/bisphenola/newsrelease.php
Don’t reuse food and water
containers
The scope of the study was to analyse
chemicals in plastic polystyrene food containers. The chemicals analysed were styrene
monomer, bisphenol A (BPA), dibutyl phthalate (DBP), benzyl butyle phthalate (BBP), di-
2-ethylexyl adipate (DEHA) and di-2-ethylhexyl phthalate (DEHP). http://thestar.com.my/news/story.asp?file=/2007/7/12/nation/18284064&sec=nation
The heads of two San Francisco
departments have asked the city's supervisors to reconsider a proposed ordinance that
would severely restrict the commercial availability of products containing chemicals known
as phthalates and bisphenol A. http://www.heartland.org/Article.cfm?artId=20822
Canned foods found to contain
dangerously high level of toxic chemical bisphenol-A (BPA)
A new study
spearheaded by the Environmental Working Group found the toxic chemical bisphenol A (BPA)
in over 50 percent of the name-brand canned goods tested. In some cases, a single serving
was enough to expose a woman or infant to BPA levels that were 200 times higher than the
government's safe level for industrial chemicals. http://www.newstarget.com/021761.html
New Studies Link Health Problems to
Toxic Chemicals
Two new studies
link diseases with exposure to low levels of chemical pollution. One study suggests the
chemical Bisphenol-A, found in some plastic bottles and food cans, can promote prostate
cancer. The other study finds small amounts of pesticides can stimulate allergic
reactions, including asthma. http://www.loe.org/shows/segments.htm?programID=07-P13-00015&segmentID=3
Fetal Exposure to Common Chemicals Can
Activate Obesity
Exposure to
environmental chemicals found in everyday plastics and pesticides while in the womb may
make a person more prone to obesity later in life, new research indicates. Obesity is
generally discussed in terms of caloric intake - how much a person eats - and energy
output - how much a person exercises. But now Frederick vom Saal, professor of biological
sciences in University of Missouri-Columbia's College of Arts and Science, has found that
when fetuses are exposed to these chemicals, the way their genes function may be altered
to make them more prone to obesity and disease. http://www.ens-newswire.com/ens/feb2007/2007-02-16-02.asp
