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E.g., 02/27/2015
E.g., 02/27/2015
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  • News in Brief

    Breast-feeding newborns might limit their allergy to pets later

    HOUSTON — Early breast-feeding accompanies a lower risk of pet allergy, possibly because of the way breast milk steers the composition of an infant’s gut microbe mix.Scientists find that formula-fed newborns have a kind of gut bacterium at levels typically not seen until later in babyhood. These kids also had more signs of pet allergy years later than did breast-fed children, researchers...
    02/27/2015 - 15:26 Human Development, Health, Immune Science
  • Science Ticker

    CDC panel gives thumbs up to vaccine against nine HPV types

    A federal vaccine advisory committee voted February 26 to recommend use of an expanded version of the human papillomavirus shot marketed as Gardasil.The move, by the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices, clears the way for the broader-coverage vaccine, called Gardasil 9, to be used in the clinic. Current vaccines offer protection against up to...
    02/26/2015 - 18:44 Health, Science & Society
  • Growth Curve

    A little tablet time probably won’t fry a toddler’s brain

    Laura Sanders is away on maternity leave.Give a toddler an iPhone and 10 minutes, and she’ll take at least 50 selfies and buy a car on eBay. Give her an iPad, and she’ll stumble upon decidedly non-kid-friendly episodes of Breaking Bad.With smartphones and tablets, children are exposed to an unprecedented amount of screen...
    02/26/2015 - 16:00 Human Development, Neuroscience
  • News

    Sexual conflict in mosquitoes may have worsened spread of malaria

    The relentless spread of malaria may be largely a side effect of a long, slow battle of the sexes among mosquitoes.Certain reproductive quirks of male and female Anopheles mosquitoes look as if they evolved in some back-and-forth scenario, researchers report in the Feb. 27 Science. In four of 16 species...
    02/26/2015 - 14:00 Evolution, Animals, Biomedicine
  • News

    Genetic tweaks built humans’ bigger brains

    Human brains ballooned to about triple the size of their ancestors’ thanks to just a few genetic tweaks, new research suggests.When scientists inject a gene found only in humans into the brains of mouse embryos, the normally smooth mouse brain develops the crinkles and folds reminiscent of wrinkly human brains, scientists ...
    02/26/2015 - 14:00 Human Evolution, Molecular Evolution, Neuroscience
  • News

    Bees may merge their flower memories

    Humans may not be the only ones to mix up old memories. Bumblebees seem to do it, too.Using fake flowers, researchers in London have shown that bumblebees sometimes prefer to visit a flower that combines the colors and patterns of flowers the bees previously visited – even if they’ve never seen the combo flower before. Preferring the novel flowers suggests that the bees are merging memories of...
    02/26/2015 - 12:00 Neuroscience, Animals
  • News

    Additives that keep foods fresh may sour in the gut

    Food additives may keep snacks fresh and tasty looking, but they can wreak havoc on the gut. These additives disrupt the intestine’s protection from bacteria and boost inflammation in mice, scientists report online February 25 in Nature.The new research “underscores the fact that a lot of things we eat … may not be as safe as we think...
    02/25/2015 - 13:00 Health, Microbiology, Immune Science
  • Science Stats

    Community protection against measles jeopardized

    In the first seven weeks of 2015, measles struck 141 people in 17 states and Washington, D.C. Most people in the United States are protected against the often severe fever and rash by having had one or more doses of the measles, mumps and rubella vaccine. But a small fraction of people either can’t get the shot — they are too young or have weak immune systems — or choose not to.The immunity of...
    02/25/2015 - 11:30 Health
  • Editor's Note

    Why stress doesn't just stay in your head

    My favorite quote in Nathan Seppa’s story about chronic stress and health belongs to Rosalind Wright, a pulmonologist who studies links between psychological stress and diseases like asthma. Stress, she says, is “not just affecting your head.”Of course, the brain is where chronic stress starts. But its influences on the body roam far...
    02/25/2015 - 10:30 Health, Mental Health
  • Science Ticker

    Stem cells from wisdom teeth could help repair corneas

    Stem cells inside your teeth could one day help repair eye scratches that cause blindness, scientists report February 23 in Stem Cells Translational Medicine.  The cornea is a thin outer layer of tissue that protects human eyes and helps focus light on the retina. Deep scratches can...
    02/24/2015 - 12:55 Biomedicine, Cells