Thursday, January 22nd, 2015
New research suggests that prenatal exposure to bisphenol A, or BPA, may cause your child to develop health issues, like diabetes and heart disease, later in life. BPA is an hormone-disrupting chemical used to manufacture plastics, such as plastic bottles, metal cans, and even cash register receipts.
The study, which was published in the journal Endocrinology, reveals that exposure to the chemical can potentially cause a type of oxidative stress, called nitrosative stress, in the mother and unborn baby. Oxidative stress occurs when the body cannot neutralize free radicals (or highly-reactive chemicals) quickly enough to correct an imbalance.
Data was collected from 24 pregnant women to measure the effect of BPA exposure. During the first trimester, blood was drawn to evaluate the women’s BPA levels. Then the women were divided into two groups—those with low levels of BPA and those with high levels. After the babies were delivered, blood from the umbilical cords was tested to conclude how much chemical byproduct was created.
“The blood analysis revealed that the human mothers exposed to higher levels of BPA, and their infants, showed signs of oxidative stress caused by overexposure to nitric oxide-derived free radicals,” reports ScienceDaily.com. There were large amounts of chemical byproducts in the blood.
The FDA states that BPA is not harmful at the current levels that it occurs in our foods, but many studies provide evidence to dispute this claim. A recent study noted the dangers of prenatal exposure to phthalates, another chemical found in plastics. All in all, it’s better to be safe, and expecting moms should limit their exposure to the chemical until there is firm scientific consensus about BPA’s affects.
Caitlin St John is an Editorial Assistant for Parents.com who splits her time between New York City and her hometown on Long Island. She’s a self-proclaimed foodie who loves dancing and anything to do with her baby nephew. Follow her on Twitter: @CAITYstjohn
Image: Pregnant Woman via Shuttershock
Add a Comment
BPA, chemical pregnancy, chemicals, healthy pregnancy, phthalates, Pregnancy, pregnant, pregnant health, pregnant women, prenatal exposure, toxic chemicals, women's health | Categories:
Child Health, Must Read, New Research, Parenting News, Parents News Now, Pregnancy
Thursday, September 4th, 2014
Some common household items could put pregnant women’s unborn children at risk, new research from the the journal Epidemiology shows.
The study found that a woman’s exposure to a group of chemicals called phenols, especially triclosan and parabens, which are found in many soaps and cosmetics, were linked to baby boys’ increased birth weights at birth and also at age 3. Higher birth weights are dangerous as they can indicate future problems, like obesity.
Chemicals in the phenol family are endocrine interrupters, and Science Daily reports that they include:
- Parabens: used as a preservative in cosmetics and healthcare products
- Triclosan: some toothpastes and soaps carry this antibacterial agent and pesticide
- Benzophenone-3: a UV filter found in sun protection products
- Dichlorophenols: used in the manufacture of indoor deodorisers
- Bisphenol A (BPA): used in making polycarbonate-based plastics, like plastic bottles, CD cases, etc.
- Epoxy resins: found in lining of food cans, dental amalgams
And though many of these chemicals may seem unavoidable, there is some good news—BPA in food packaging for infants and young children was banned in 2013 and will be banned for all food packaging starting Jan. 1, 2015.
Photo of liquid soap courtesy of Shutterstock.
Add a Comment
boys, BPA, endocrine disruptors, epoxy resins, fetal development, parabens, phenols, Pregnancy, toxic chemicals, toxins, triclosan | Categories:
New Research, Parents News Now
Wednesday, May 14th, 2014
A group of common chemicals called endocrine disruptors are being connected to fertility problems in men, as CNN reports:
Researchers found endocrine disruptors can interfere with human sperm’s ability to move, navigate and/or penetrate an egg. Their study results were published Monday in EMBO reports.
Endocrine disruptors are chemicals that interfere with your endocrine system – the system in your body that regulates hormones. These hormones control everything from your metabolism to your sleep cycle to your reproductive system, so messing with them can cause serious issues.
Scientists have a long list of potential endocrine disruptors, including bisphenol-A (BPA), phthalates, dioxin, mercury and perfluorinated chemicals (PFCs). They can be natural or man-made and are virtually “omnipresent,” the study authors write, in our food and in common household and personal care products.
This isn’t the first time scientists have linked these chemicals with fertility issues in humans. For example, in 2010, a study of Chinese factory workers found exposure to BPA can reduce sperm counts. More recent studies have shown BPA and chemicals called phthalates can hinder a couple’s ability to conceive and carry a healthy baby to full term.
Scientists in Germany and Denmark tested 96 endocrine disrupting chemicals on human sperm – both individually and in various combinations. Around one-third of the chemicals had a negative effect.
The researchers found these endocrine disruptors increased the amount of calcium found in sperm cells – although BPA was found to have no effect. Calcium ions control many of the essential functions of sperm, study author Dr. Timo Strunker explains, including the flagellum – the tail that propels sperm forward. So changing the calcium level in a sperm cell can impact its motility, or swimming ability.
Image: Sperm, via Shutterstock
Take our quiz to find out if you could be ovulating.
Add a Comment
BPA, endocrine disruptors, fertility, infertility, male factor infertility, sperm, sperm quality, toxic chemicals | Categories:
Child Health, Must Read, New Research, Pregnancy, Safety
Tuesday, March 4th, 2014
Many parents breathed a sigh of relief when the FDA banned the chemical bisphenol-A (BPA) from plastics that are used in infant feeding vessels including bottles and sippy cups in 2012. Studies have linked the chemical, which is known to disrupt the endocrine system by mimicking the hormone estrogen, to health problems including miscarriage risk, and childhood obesity, asthma, and behavioral issues. Many parents were disappointed, though, when the FDA, shortly before making its BPA ban in infant materials, stopped short of banning it from all food containers, especially canned foods and even infant formula packages.
But the debate over the safety of plastics is far from over–and it is larger than the BPA question–according to a new report from Mother Jones magazine that chronicles the work of research organizations that claims that even “safe” plastics leach estrogenic, hormone-disrupting compounds. More from the Mother Jones article:
Each night at dinnertime, a familiar ritual played out in Michael Green’s home: He’d slide a stainless steel sippy cup across the table to his two-year-old daughter, Juliette, and she’d howl for the pink plastic one. Often, Green gave in. But he had a nagging feeling. As an environmental-health advocate, he had fought to rid sippy cups and baby bottles of the common plastic additive bisphenol A (BPA), which mimics the hormone estrogen and has been linked to a long list of serious health problems. Juliette’s sippy cup was made from a new generation of BPA-free plastics, but Green, who runs the Oakland, California-based Center for Environmental Health, had come across research suggesting some of these contained synthetic estrogens, too.
He pondered these findings as the center prepared for its anniversary celebration in October 2011. That evening, Green, a slight man with scruffy blond hair and pale-blue eyes, took the stage and set Juliette’s sippy cups on the podium. He recounted their nightly standoffs. “When she wins…every time I worry about what are the health impacts of the chemicals leaching out of that sippy cup,” he said, before listing some of the problems linked to those chemicals—cancer, diabetes, obesity. To help solve the riddle, he said, his organization planned to test BPA-free sippy cups for estrogenlike chemicals.
The center shipped Juliette’s plastic cup, along with 17 others purchased from Target, Walmart, and Babies R Us, to CertiChem, a lab in Austin, Texas. More than a quarter—including Juliette’s—came back positive for estrogenic activity. These results mirrored the lab’s findings in its broader National Institutes of Health-funded research on BPA-free plastics. CertiChem and its founder, George Bittner, who is also a professor of neurobiology at the University of Texas-Austin, had recently coauthored a paper in the NIH journal Environmental Health Perspectives. It reported that “almost all” commercially available plastics that were tested leached synthetic estrogens—even when they weren’t exposed to conditions known to unlock potentially harmful chemicals, such as the heat of a microwave, the steam of a dishwasher, or the sun’s ultraviolet rays. According to Bittner’s research, some BPA-free products actually released synthetic estrogens that were more potent than BPA.
Estrogen plays a key role in everything from bone growth to ovulation to heart function. Too much or too little, particularly in utero or during early childhood, can alter brain and organ development, leading to disease later in life. Elevated estrogen levels generally increase a woman’s risk of breast cancer….
Today many plastic products, from sippy cups and blenders to Tupperware containers, are marketed as BPA-free. But Bittner’s findings—some of which have been confirmed by other scientists—suggest that many of these alternatives share the qualities that make BPA so potentially harmful.
Those startling results set off a bitter fight with the $375-billion-a-year plastics industry. The American Chemistry Council, which lobbies for plastics makers and has sought to refute the science linking BPA to health problems, has teamed up with Tennessee-based Eastman Chemical—the maker of Tritan, a widely used plastic marketed as being free of estrogenic activity—in a campaign to discredit Bittner and his research. The company has gone so far as to tell corporate customers that the Environmental Protection Agency (EPA) rejected Bittner’s testing methods. (It hasn’t.) Eastman also sued CertiChem and its sister company, PlastiPure, to prevent them from publicizing their findings that Tritan is estrogenic, convincing a jury that its product displayed no estrogenic activity. And it launched a PR blitz touting Tritan’s safety, targeting the group most vulnerable to synthetic estrogens: families with young children. “It can be difficult for consumers to tell what is really safe,” the vice president of Eastman’s specialty plastics division, Lucian Boldea, said in one web video, before an image of a pregnant woman flickered across the screen. With Tritan, he added, “consumers can feel confident that the material used in their products is free of estrogenic activity.”
Eastman’s offensive is just the latest in a wide-ranging industry campaign to cast doubt on the potential dangers of plastics in food containers, packaging, and toys—a campaign that closely resembles the methods Big Tobacco used to stifle scientific evidence about the dangers of smoking.
The article goes on to report that CertiChem and PlastiPure are appealing the 2013 court ruling that alleged the companies were trying to discredit Eastman in order to market their own “safe” plastics, and the groups are working on new research.
Mother Jones also published a timeline that shows the history of the fight against BPA, and how the industry and even government regulators have apparently ignored concerning research about the safety of BPA-free plastics.
Sign up for our Recall Alerts so you can stay up-to-date on the latest product safety information.
Image: Child with plastic sippy cup, via Shutterstock
Add a Comment
BPA, childhood asthma, childhood obesity, endocrine disruptors, estrogen, fertility, hormones, miscarriage, Mother Jones, plastics | Categories:
Child Health, Must Read, New Research, Parenting News, Safety
Tuesday, October 15th, 2013
The chemical compound called bisphenol-A (BPA), which is found in many plastics and food can linings, has been linked to a heightened miscarriage risk in women who struggled to conceive or have experienced repeated miscarriages. The finding comes from a new study presented this week to the American Society for Reproductive Medicine. More from The Associated Press:
The work is not nearly enough to prove a link, but it adds to ‘‘the biological plausibility’’ that BPA might affect fertility and other aspects of health, said Dr. Linda Giudice, a California biochemist who is president of the American Society for Reproductive Medicine. The study was to be presented Monday at the group’s annual conference in Boston. Last month, ASRM and an obstetricians group urged more attention to environmental chemicals and their potential hazards for pregnant women.
BPA, short for bisphenol-A, and certain other environmental chemicals can have very weak, hormone-like effects. Tests show BPA in nearly everyone’s urine, though the chemical has been removed from baby bottles and many reusable drink containers in recent years. The federal Food and Drug Administration says BPA is safe as used now in other food containers.
Most miscarriages are due to egg or chromosome problems, and a study in mice suggested BPA might influence that risk, said Dr. Ruth Lathi, a Stanford University reproductive endocrinologist.
With a federal grant, she and other researchers studied 115 newly pregnant women with a history of infertility or miscarriage; 68 wound up having miscarriages and 47 had live births.
Researchers say it is virtually impossible to avoid exposure to BPA completely. The AP offers some tips on how to minimize exposure:
To minimize BPA exposure, avoid cooking or warming food in plastic because heat helps the chemical leak out, she said. Don’t leave water bottles in the sun, limit use of canned foods and avoid handling cash register receipts, which often are coated with resins that contain BPA.
Image: Food can, via Shutterstock
Get our Everything Pregnancy blogger’s take on the link between BPA and your miscarriage risk here.
Add a Comment