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E.g., 10/18/2018
E.g., 10/18/2018
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  • Staphylococcus aureus bacteria
  • 1968 Hong Kong pandemic flu strain
  • illustration of viruses in vesicles
Your search has returned 144 articles:
  • News

    Smuggling a CRISPR gene editor into staph bacteria can kill the pathogen

    Bits of DNA that make bacteria dangerous can be co-opted to bring the microbes down instead.

    Stretches of DNA called pathogenicity islands can jump between bacteria strains, introducing new toxin-producing genes that usually make a strain more harmful. Scientists have now modified pathogenicity islands by replacing the toxin-producing genes with genes that, in mice, disabled or killed...

    10/01/2018 - 09:00 Genetics, Immune Science
  • 50 years ago, a flu pandemic spurred vaccine research

    Girding against a new strain

    Flu comes in many kinds, and the current vaccine … has little effect against a newcomer that has afflicted at least 400,000 persons in Hong Kong. The Asian city was the source of the 1957 epidemic in the United States. Fears that it may provide a springboard for another one have caused the Public Health Service to ask eight pharmaceutical companies to...

    09/21/2018 - 09:00 Health, Immune Science, History of Science
  • News

    Nasty stomach viruses can travel in packs

    Conventional wisdom states that viruses work as lone soldiers. Scientists now report that some viruses also clump together in vesicles, or membrane-bound sacs, before an invasion. Compared with solo viruses, these viral “Trojan horses” caused more severe infections in mice, researchers report August 8 in Cell Host & Microbe.

    Cell biologist Nihal Altan-Bonnet had been involved in...

    08/08/2018 - 11:00 Cells, Immune Science, Microbiology
  • News

    This tick may play a part in gumming up your arteries

    It sounds bonkers that a tick bite might make meat eaters allergic to their steaks and ribs, but it’s true. Now new research has added a potential twist: The source of this tick-related sensitivity to red meat may also be linked to coronary artery disease.

    A bite from the lone star tick, Amblyomma americanum, can trigger antibodies to a sugar called alpha-gal, found in many mammals but...

    07/30/2018 - 07:00 Health, Immune Science
  • News

    Here’s why wounds heal faster in the mouth than in other skin

    Mouth wounds heal faster than injuries to other parts of the skin, and now scientists are learning how the mouth performs its speedy repairs.

    Some master regulators of gene activity work overtime in the mouth to heal wounds without scarring, researchers report July 25 in Science Translational Medicine. Those regulators — proteins known as SOX2, PITX1, PITX2 and PAX9 — are active in skin...

    07/25/2018 - 14:00 Genetics, Cells, Immune Science
  • News in Brief

    Genetically modified plant may boost supply of a powerful malaria drug

    Genetic modifications to a plant that makes artemisinin, a key compound used in malaria drugs, more than tripled the amount of the ingredient naturally produced in leaves.

    Previous attempts to genetically engineer Artemisia annua to increase the yield of artemisinin had failed. So Kexuan Tang, a plant scientist at Shanghai Jiao Tong University, and colleagues determined A. annua’s entire...

    04/24/2018 - 14:56 Plants, Genetics, Immune Science
  • Rethink

    Inked mice hint at how tattoos persist in people

    Tattoos may have staying power because of a hand off between generations of immune cells known as macrophages, say a group of French researchers.

    If true, this would overturn notions that tattoo ink persists in connective tissue or in long-lasting macrophages.

    Immunologist Sandrine Henri of the Immunology Center of Marseille-Luminy, in France, and colleagues tattooed mice tails...

    03/16/2018 - 16:22 Microbiology, Immune Science
  • News

    New twist on a flu vaccine revs up the body’s army of virus killers

    Sometimes an old fight needs a new hero. With the United States in the midst of a tough flu season — and with evidence from Australia that the current flu shot is only 10 percent effective against the strains responsible for most illnesses — a different approach to flu vaccine development may do the trick.

    Vaccines traditionally protect against illness by stimulating antibodies to block...

    01/19/2018 - 15:42 Health, Immune Science
  • News

    Not all strep infections are alike and it may have nothing to do with you

    One person infected with strep bacteria might get a painful sore throat; another might face a life-threatening blood infection. Now, scientists are trying to pin down why.

    Variation between individuals’ immune systems may not be entirely to blame. Instead, extra genes picked up by some pathogens can cause different strains to have wildly different effects on the immune system, even in...

    01/11/2018 - 14:40 Health, Genetics, Immune Science
  • News in Brief

    CRISPR gene editor could spark immune reaction in people

    Immune reactions against proteins commonly used as molecular scissors might make CRISPR/Cas9 gene editing ineffective in people, a new study suggests.

    About 79 percent of 34 blood donors tested had antibodies against the Cas9 protein from Staphylococcus aureus bacteria, Stanford University researchers report January 5 at bioRxiv.org. About 65 percent of donors had antibodies against the...

    01/09/2018 - 06:00 Genetics, Immune Science