6 environmental research studies reveal critical health risks from plastic

Oct 02, 2008

Exposure to Bisphenol A (BPA), phthalates and flame retardants (PBDEs) are strongly associated with adverse health effects on humans and laboratory animals. A special section in the October 2008 issue of Environmental Research, "A Plastic World" provides critical new research on environmental contaminants and adverse reproductive and behavioral effects.

Plastic products contain "endocrine disrupting chemicals" that can block the production of the male sex hormone testosterone (phthalates used in PVC plastic), mimic the action of the sex hormone estrogen (bisphenol A or BPA used in polycarbonate plastic), and interfere with thyroid hormone (brominated flame retardants or PBDEs used in many types of plastic).

Two articles report very similar changes in male reproductive organs in rats and humans related to fetal exposure to phthalates. Two articles show that fetal exposure to BPA or PBDEs disrupts normal development of the brain and behavior in rats and mice. Two other articles provide data that these chemicals are massively contaminating the oceans and causing harm to aquatic wildlife.

The other studies integrate new laboratory research with a broader view reflecting exposures to a variety of chemicals in plastic. These ubiquitous chemicals found in many plastics act independently and together to adversely affect human, animal and environmental health.

The articles show amongst others the massive contamination of the Pacific Ocean with plastic, and the amount of contamination has increased dramatically in recent years; animal brain structure, brain chemistry and behavioral effects from exposure to BPA and "phthalate syndrome" in rats' male offspring.

"For the first time a series of articles will appear together that identify that billions of kilograms of a number of chemicals used in the manufacture of different types of plastic can leach out of plastic products and cause harm to the brain and reproductive system when exposure occurs during fetal life or prior to weaning," emphasized Dr. Frederick vom Saal, Guest Editor of the "Plastic World".

"Not only are these studies of scientific importance, they also contribute to the ongoing US congressional hearings involving the Food and Drug Administration," remarked Gert-Jan Geraeds, Publisher of Environmental Research, "As such, "The Plastic World" has a broader societal impact and raises awareness of increasingly important environmental issues".

References:

Frederick S. vom Saal, Stefano Parmigiani, Paola L. Palanza, Lorne G. Everett, Richard Ragaini, The plastic world: Sources, amounts, ecological impacts and effects on development, reproduction, brain and behavior in aquatic and terrestrial animals and humans, Environmental Research, 108 (2008), pp. 127 - 130

Charles James Moore, Synthetic polymers in the marine environment: A rapidly increasing, long-term threat, Environmental Research, 108 (2008), pp. 131 – 139

Jörg Oehlmann, Matthias Oetken, Ulrike Schulte-Oehlmann, A critical evaluation of the environmental risk assessment for plasticizers in the freshwater environment in Europe, with special emphasis on bisphenol A and endocrine disruption, Environmental Research, 108 (2008), pp. 140 – 149

Paola Palanza, Laura Gioiosa, Frederick S. vom Saal, Stefano Parmigiani, Effects of developmental exposure to bisphenol A on brain and behavior in mice, Environmental Research, 108 (2008), pp. 150 – 157

Chris E. Talsness, Overview of toxicological aspects of polybrominated diphenyl ethers: A flame-retardant additive in several consumer products, Environmental Research, 108 (2008), pp. 158 – 167

Kembra L. Howdeshell, Cynthia V. Rider, Vickie S. Wilson, L. Earl Gray Jr., Mechanisms of action of phthalate esters, individually and in combination, to induce abnormal reproductive development in male laboratory rats, Environmental Research, 108 (2008), pp. 168 – 176

Shanna H. Swan, Environmental phthalate exposure in relation to reproductive outcomes and other health endpoints in humans, Environmental Research, 108 (2008), pp.

Source: Elsevier

Explore further: Tax forms could pose challenge for HealthCare.gov

add to favorites email to friend print save as pdf

Related Stories

China's Alibaba plans IPO for week of September 8

2 hours ago

Chinese e-commerce giant Alibaba plans to hold its initial public offering on the US stock market the week of September 8, the Wall Street Journal reported Saturday, citing a person familiar with the matter.

Tablet sales slow as PCs find footing

2 hours ago

Tablets won't eclipse personal computers as fast as once thought, according to studies by market tracker International Data Corporation (IDC).

Startups offer banking for smartphone users

3 hours ago

The latest banks are small enough to fit in the palm of your hand. Startups, such as Moven and Simple, offer banking that's designed specifically for smartphones, enabling users to track their spending on the go. Some things ...

Recommended for you

Can YouTube save your life?

22 hours ago

Only a handful of CPR and basic life support (BLS) videos available on YouTube provide instructions which are consistent with recent health guidelines, according to a new study published in Emergency Medicine Australasia, the jo ...

Doctors frequently experience ethical dilemmas

23 hours ago

(HealthDay)—For physicians trying to balance various financial and time pressures, ethical dilemmas are common, according to an article published Aug. 7 in Medical Economics.

AMGA: Physician turnover still high in 2013

23 hours ago

(HealthDay)—For the second year running, physician turnover remains at the highest rate since 2005, according to a report published by the American Medical Group Association (AMGA).

Obese or overweight teens more likely to become smokers

Aug 29, 2014

A study examining whether overweight or obese teens are at higher risk for substance abuse finds both good and bad news: weight status has no correlation with alcohol or marijuana use but is linked to regular ...

User comments : 2

Adjust slider to filter visible comments by rank

Display comments: newest first

bwanajohn
not rated yet Oct 03, 2008
This is "science by press release". Every time I see headlines like this and read the "study" there are serious breaches in the science to come to the conclusions presented. We have drifted from "dosage makes the poison" to anectodal evidence of a "possible link". Until I see solid dosage based evidence, I will remain skeptical.
grainger
not rated yet Oct 03, 2008
Another report issued by the European Food Safety Administration stated that there was a critical difference in the way rats and humans dealt with BPA. Rats metabolized it; whereas, humans passed it quickly through their systems. Something is highly suspect about these latest alarming reports.