Household dust is the main route of exposure to flame retardants for people — from toddlers to adults — followed by eating animal and dairy products, according to a report in the July 15 issue of the American Chemical Society’s journal Environmental Science & Technology. ACS is the world’s largest scientific society. Until this study, which is based on a computer model developed by Canadian researchers, scientists have been unsure exactly how people are being exposed.
PBDEs (polybrominated diphenyl ethers) — used widely as flame-retardant additives in electronics and furniture — have been detected in humans across the globe, with especially high levels in North America. Little is known about the specific toxic effects of brominated flame retardants, but some researchers say that the increasing presence of the compounds in human tissue is cause for concern because they have been associated with cancer and other health problems in animal studies.
“Our work is good news and bad news,” says the study’s lead author, Miriam Diamond, Ph.D., an environmental chemist at the University of Toronto. “Good news because we’ve identified the main route of exposure to PBDEs — house dust; bad news because we need more action to remove PBDEs from household products and replace them with alternatives that are effective in reducing hazards related to fires and that do not accumulate in the environment.”
Michael Bernstein | EurekAlert!
Study tracks inner workings of the brain with new biosensor
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Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
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Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
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Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
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