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E.g., 06/28/2017
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  • News

    Bones make hormones that communicate with the brain and other organs

    Long typecast as the strong silent type, bones are speaking up.

    In addition to providing structural support, the skeleton is a versatile conversationalist. Bones make hormones that chat with other organs and tissues, including the brain, kidneys and pancreas, experiments in mice have shown.

    “The bone, which was considered a dead organ, has really become a gland almost,” says Beate...

    06/21/2017 - 15:00 Health, Biomedicine, Cells
  • News

    Protein in Parkinson’s provokes the immune system

    Bits of a protein that builds up in Parkinson’s disease trigger the immune system, causing it to tag them as foreign invaders.

    In a blood test, immune cells called T cells became activated when exposed to the protein in about 40 percent of Parkinson’s patients in a new study. This autoimmune response may contribute to the progression of the disease, the researchers report online June 21...

    06/21/2017 - 13:25 Biomedicine, Health, Immune Science
  • News

    A baby’s DNA may kick off mom’s preeclampsia

    A protein made by the fetus may lead to preeclampsia in moms.

    People born to mothers who had the prenatal disorder were more likely to have certain DNA variations near a gene known to influence blood vessels. The results, published online June 19 in Nature Genetics, point to that gene as a possible preeclampsia culprit, and may help scientists develop ways to stop or prevent the...

    06/21/2017 - 07:00 Biomedicine
  • 50 Years Ago

    In 1967, researchers saw the light in jaundice treatment

    Light helps premature babies

    Premature babies, who often develop jaundice because of an excess of bile pigment called bilirubin, can be saved from this dangerous condition by the use of fluorescent light.… The light alters the chemistry of bilirubin so it can be excreted with the bile. Exchange transfusion is the usual treatment when jaundice occurs but this drastic procedure carries a...

    06/15/2017 - 05:00 Health, Biomedicine
  • News

    New heart attack treatment uses photosynthetic bacteria to make oxygen

    Acting like miniature trees that soak up sunlight and release oxygen, photosynthetic bacteria injected into the heart may lighten the damage from heart attacks, a new study in rats suggests.

    When researchers injected the bacteria into rats’ hearts, the microbes restored oxygen to heart tissue after blood supply was cut off as in a heart attack, researchers at Stanford University report...

    06/14/2017 - 14:06 Biomedicine, Microbiology
  • News

    New kind of ‘tan in a bottle’ may one day protect against skin cancer

    A method that gives mice a tan without using ultraviolet radiation now works in human skin samples. It’s an early step in developing a lotion or cream that might provide fair-skinned folk with protection against skin cancer.

    As reported June 13 in Cell Reports, a topical drug penetrated and tanned laboratory samples of live human skin, absent the sun. Unlike self-tanning lotions that...

    06/13/2017 - 12:47 Health, Biomedicine, Cancer
  • Feature

    Live antibiotics use bacteria to kill bacteria

    The woman in her 70s was in trouble. What started as a broken leg led to an infection in her hip that hung on for two years and several hospital stays. At a Nevada hospital, doctors gave the woman seven different antibiotics, one after the other. The drugs did little to help her. Lab results showed that none of the 14 antibiotics available at the hospital could fight the infection, caused by...

    06/13/2017 - 10:49 Health, Microbiology, Biomedicine, Immune Science
  • News

    Therapy flags DNA typos to rev cancer-fighting T cells

    Mutations that prevent cells from spell-checking their DNA may make cancer cells vulnerable to immunotherapies, a new study suggests.

    A type of immune therapy known as PD-1 blockade controlled cancer in 77 percent of patients with defects in DNA mismatch repair — the system cells use to spell-check and fix errors in DNA (SN Online: 10/7/15). The therapy was effective against 12 different...

    06/09/2017 - 15:12 Cancer, Immune Science, Genetics, Biomedicine
  • News

    When preventing HIV, bacteria in the vagina matter

    Bacteria in the vagina affect whether a drug stops an HIV infection or is itself stopped cold.

    A vaginal gel containing tenofovir, an antiretroviral drug used to treat HIV infection, was three times as effective at preventing HIV in women who had healthy vaginal bacterial communities as it was in women with a less beneficial mix. The finding may help explain why the effectiveness of...

    06/01/2017 - 14:52 Biomedicine, Health
  • Feature

    For babies exposed to opioids in the womb, parents may be the best medicine

    The first thing you’ll notice is the noise. Monitors beep steadily, relentlessly, ready to sound a car-alarm blare if a baby is in trouble.

    The air has an astringent odor — not clean exactly, but reminiscent of an operating room (there’s one next door). Ceiling lights shine fluorescent white. Half are off, but glare from the monitors throws out extra light. It’s midday on a Friday, but...

    05/31/2017 - 15:30 Health, Science & Society, Biomedicine