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Your search has returned 307 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