CHICAGO, IL, May 7, 2010
--/WORLD-WIRE/--
Chairman of the Cancer
Prevention Coalition, Samuel S.
Epstein, M.D. is urging public
support for the recently
introduced Toxic Chemicals
Safety Act of 2010, which
establishes a program to review
and protect children from risks
of toxic exposures, including
Bisphenol-A (BPA), a common
contaminant in consumer goods.
On March 30 this year, Dr.
Epstein points out, the
Washington Post announced that
the Environmental Protection
Agency listed BPA as "a chemical
of concern." The Post also noted
that the U.S. Food and Drug
Administration (FDA) previously
expressed "concerns about the
chemical's hormonal effect on
human health." However, the
American Chemistry Council
claims "that BPA is not a risk
to the environment at current
low levels."
BPA is widely used in
polycarbonate bottles, such as
baby products, besides adult
personal care and cosmetic
products, food can linings,
microwave oven dishes, dental
sealants, and also medical
devices.
Dr. Epstein says there are other
recently recognized major
sources of BPA such as cash
register and credit-card
receipts, which are coated with
microscopic powdered BPA, and
which many of us handle daily.
A 2007 review of about 700
studies on BPA, published in the
journal Reproductive Toxicology,
found that the fetus and infants
are highly vulnerable to the
toxic hormonal effects of this
ingredient, technically known as
"endocrine disruptive."
Dr. Epstein cites an
accompanying study by National
Institutes of Health researchers
in the same journal, reported
uterine damage in newborn
rodents exposed to levels of BPA
comparable with those of normal
human exposure. "This finding
may also implicate BPA as a
cause of reproductive tract
disorders in women, after their
earlier exposure as fetuses or
infants," he warns.
Previous studies in the journal
Endocrinology, and elsewhere,
reported that BPA masculinizes
the brain of female mice and
feminizes the brain of male
mice. Toxic effects of this
hormone disrupter in pregnant
women are evidenced in their
infant baby boys by the
reduction in the normal distance
between their anus and genitals.
This decrease in anogenital
distance is also associated with
a decrease in sperm production.
Based on such evidence, Health
Canada declared BPA to be a
"toxic chemical" in early 2008.
In addition to these toxic
effects, exposure of pregnant
rodents to BPA, at levels 2,000
times lower than the
Environmental Protection
Agency's "safe dose," resulted
in sexual abnormalities in their
offspring. Dr. Epstein warns
that these abnormalities include
an increased number of "terminal
end buds" in breast tissue,
which are associated with a
subsequent high risk of breast
cancer. However, an American
Plastics Council spokesman
claimed that the human relevance
of these findings is only
"hypothetical."
Dr. Epstein warns that BPA has
also been found in human blood,
placental and fetal tissue, and
incriminated as a predisposing
factor for prostate cancer. "The
authors of this study also
linked endocrine-dependent human
cancers, such as breast cancer,
to the minimal levels of BPA to
which pregnant women are
exposed," he says.
An August 2, 2007 consensus
statement by several dozen
scientists warned that BPA, even
at very low exposure levels, is
probably responsible for many
human reproductive disorders.
A September 2008 publication,
Endocrine-Related Cancer, by Dr.
Gail Prins reviewed the
substantial scientific evidence
on the toxic hormonal effects of
BPA, besides other endocrine
disruptive chemicals (EDCs) in
pregnant women. She concluded
that children are highly
sensitive to their toxic
effects, particularly subsequent
risks of prostate cancer.
In October 2008, Science Daily
reported on an article on BPA
called "A Plastic World," in a
then pending special section on
Environmental Research. Two
other articles reported that
fetal exposure to BPA disrupted
the normal development of the
brain and behavior in rats and
mice. Other articles have also
reported that BPA is massively
contaminating the oceans and
harming aquatic wildlife.
The June 2009 Endocrine
Disruption Act authorized the
National Institute of
Environmental Health Science "to
coordinate" research on hormone
disruption to prevent exposure
to chemicals "that can undermine
the development of children
before they are born and cause
lifelong impairment of their
health and function."
This bill was supported by
public health, consumer and
children's advocacy groups, and
further strengthened by
California's Senator Dianne
Feinstein's legislation to ban
BPA from food and beverage
containers. Of major relevance,
this legislation has also been
endorsed by the April 2010
President's Cancer Panel On
"Reducing Environmental Cancer
Risk: What We Can Do Now,"
2008-2009 Annual Report. This
report further warns that "to a
disturbing extent, babies are
born pre-polluted."
There are safe alternatives to
BPA. As emphasized in the Dr.
Sam Epstein's 2009 book Toxic
Beauty, the recent development
of "green chemistry" has
encouraged the phase-out of
product packaging that relies on
petrochemical plastic
containers, particularly those
containing BPA. These containers
are now being replaced with
biodegradable substitutes,
including recycled paper. Such
"green" packaging reduces energy
use, greenhouse gases, and
non-degradable or poorly
degradable wastes currently
disposed of in landfills.
In January this year, the FDA
announced an "Update on BPA,"
with particular reference to its
use in food packaging, plastic
baby bottles, feeding cups, and
metal containers, to avoid
childhood exposure. However, FDA
has still not taken any
regulatory action to this
effect. Meanwhile, Dr. Epstein
says, the industry's Cosmetic
Ingredient Review Panel does not
even make any reference to BPA
in its annual "safety
assessments."
On April 15, Congressmen Bobby
Rush and Henry Waxman released a
draft of the Toxic Chemicals
Safety Act of 2010. The key
provisions of this Act include
establishment of a program to
review and protect children from
risks of toxic exposures,
including BPA.
Dr. Epstein says, "The passage
of this legislation is urgently
needed in order to ban BPA from
food packaging and other
consumer products, especially to
prevent any further childhood
exposure."
Samuel S. Epstein, M.D. is
professor emeritus of
Environmental and Occupational
Medicine at the University of
Illinois at Chicago School of
Public Health; Chairman of the
Cancer Prevention Coalition; The
2005 Albert Schweitzer Golden
Grand Medalist for International
Contributions to Cancer
Prevention; and author of over
270 scientific articles and 20
books on the causes and
prevention of cancer, including
the groundbreaking The Politics
of Cancer (1979), and Toxic
Beauty (2009, BenBella Books).
To read Dr. Epstein's columns in
the Huffington Post, go to:
http://www.huffingtonpost.com/samuel-s-epstein
Gail S. Prins, PhD is professor
of Physiology and Urology at the
University of Illinois at
Chicago; member, National
Toxicology Program Peer Review
Panel on Low-Dose Endocrine
Disruptors, rapporteur for the
BPA Review Panel (2001); Chair
of the NIEHS/EPA Expert Panel on
Bisphenol A and Cancer (2007);
member of the Endocrine
Disruptor Task Force for The
Endocrine Society (2009),
co-author of their position
statement on endocrine
disrupting chemicals which was
adopted by the American Medical
Association in 2010; author of
over 150 scientific articles on
male reproduction and prostate
gland biology and cancer;
Principal Investigator on 3
current NIH grants to examine
early-life BPA exposure and
prostate cancer risk.
CONTACT:
Samuel S. Epstein, M.D.
Chairman, Cancer Prevention
Coalition
Professor emeritus Environmental
& Occupational Medicine
University of Illinois at
Chicago School of Public Health
Chicago, Illinois
Tel: 312-996-2297
Email:
epstein@uic.edu
http://www.preventcancer.com
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Gail S. Prins, Ph.D.
Professor of Physiology and
Urology
University of Illinois at
Chicago College of Medicine
Chicago, Illinois
Tel: 312-413-9766
Email:
gprins@uic.edu
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