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Your search has returned 49 articles:
  • News

    The way poison frogs keep from poisoning themselves is complicated

    View the video

    For some poison dart frogs, gaining resistance to one of their own toxins came with a price.

    The genetic change that gives one group of frogs immunity to a particularly lethal toxin also disrupts a key chemical messenger in the brain. But the frogs have managed to sidestep the potentially damaging side effect through other genetic tweaks, researchers report in the...

    09/22/2017 - 11:56 Toxicology, Evolution, Animals
  • News

    New material could filter water contaminants that others miss

    A new material can pull a toxic, hard-to-degrade industrial chemical from drinking water more effectively than current methods.

    Perfluorooctanoic acid, or PFOA, hangs around in the environment for years and might cause health problems for people and animals. A new polymer material traps PFOA molecules, making them easy to filter out of water, researchers report in the June 14 Journal of...

    06/20/2017 - 16:23 Toxicology, Pollution
  • News

    Epigenetic marks may help assess toxic exposure risk — someday

    Nearly everything people do, eat or come into contact with can change them in little ways — sometimes with big consequences. Exposure to some chemicals can damage DNA, leading to cancer and other problems. Other molecular changes—chemical tags added to DNA or to proteins called histones — may affect health without injuring DNA.

    There are more than 100 varieties of these chemical tags,...

    12/09/2016 - 06:00 Epigenetics, Toxicology
  • Editor's Note

    Finding wonders in fat

    Who knew body fat held such hidden treasures? Scientists have found some serious loot in that bemoaned organ, including a vigorous population of flexible stem cells that can be coaxed into acting as new cartilage or tendons for damaged joints. Fat’s gems may also find uses in building new bone and repairing hearts, Susan Gaidos reports.

    One day such research might enable people to avoid...

    03/09/2016 - 14:45 Quantum Physics, Physics, Toxicology, Health
  • News

    FDA to test foods for controversial herbicide

    The U.S. government will test various foods for exposure to glyphosate, the active ingredient in several herbicides.

    Tests on foods including soybeans, corn, milk and eggs are set to begin this year, says Food and Drug Administration spokesperson Lauren Sucher. In 2014, the Government Accountability Office called on the FDA and the U.S. Department of Agriculture to strengthen their...

    02/19/2016 - 15:56 Agriculture, Toxicology
  • News

    Vaping linked to host of new health risks

    WASHINGTON — Many people have turned to electronic cigarettes in hopes of avoiding the heart and cancer risks associated with smoking conventional tobacco products. But vaping appears far from benign, a trio of toxicologists reported February 11 and 12 at the American Association for the Advancement of Science annual meeting.

    If used as a means to totally wean people off of tobacco...

    02/12/2016 - 17:06 Toxicology, Genetics, Health
  • Wild Things

    Whales are full of toxic chemicals

    European whales and dolphins may be at risk of extinction from the effects of polychlorinated biphenyls, or PCBs, a team of researchers recently reported in Scientific Reports. Concentrations of PCBs in killer whales and bottlenose and striped dolphins, they found, were high enough to cause health damage.

    PCBs have been banned in Europe, the United States and many other places for...

    01/19/2016 - 07:00 Animals, Oceans, Toxicology
  • News

    PCB levels still high in Europe’s killer whales, smaller dolphins

    Decades after Europe banned toxic PCBs, the region’s killer whales and three smaller dolphin species still carry high levels of the pollutants.

    “They’re still at concentrations we really need to worry about,” said veterinary specialist Paul D. Jepson of the Zoological Society of London at a news conference January 12.  

    PCBs (polychlorinated biphenyls) were once industrial wonder...

    01/14/2016 - 09:00 Pollution, Toxicology, Animals
  • Feature

    Year in review: BPA alternatives aren't benign

    A popular alternative to bisphenol A isn’t as benign as people had thought, at least not in lab animals.

    After a growing body of research identified hormone-mimicking effects from BPA — a compound found in some plastics, dental sealants and cash register receipts — consumers began reaching for BPA-free products. But there is now evidence that at least one of the chemical substitutes,...

    12/15/2015 - 06:30 Toxicology, Pollution
  • News

    Air pollutants enter body through skin

    For some toxic air pollutants, more can get into the body through the skin than via breathing, new human data indicate.

    The natural assumption is that inhalation is the primary route by which air pollutants invade the body. Each breath delivers those chemicals to the blood, which courses through the lungs’ tiniest airways. But the body’s biggest organ is the skin, and recent studies show...

    10/13/2015 - 07:00 Pollution, Toxicology