Press releases

  • Malaria Already Endemic in the Mediterranean by the Roman Period

    Malaria was already widespread on Sardinia by the Roman period, long before the Middle Ages, as indicated by research at the Institute of Evolutionary Medicine of the University of Zurich with the help of a Roman who died 2,000 years ago.

  • Large-Mouthed Fish Was Top Predator After Mass Extinction

    The food chains recovered more rapidly than previously assumed after Earth’s most devastating mass extinction event about 252 million years ago as demonstrated by the fossilized skull of a large predatory fish called Birgeria americana discovered by paleontologists from the University of Zurich in the desert of Nevada.

  • Shedding Light on Cause of Resistance to Tumor Immunotherapy

    In tumor immunotherapy, the body’s own defense system is activated against the tumor cells. However, for the majority of patients, the tumor cells become resistant to the treatments used. Researchers at the University of Zurich and the University Hospital Zurich have now found in skin cutaneous melanoma that an epigenetic control protein is key to the development of this resistance.

  • Innate Reaction of Hematopoietic Stem Cells to Severe Infections

    Researchers at the University of Zurich have shown for the first time that hematopoietic stem cells detect infectious agents themselves and begin to divide – that is, without signals from growth factors. This direct production of defensive cells damages hematopoiesis in the long term, however, which could lead to malignant hematopoietic stem cell diseases at advanced age.

  • Titanium Dioxide Nanoparticles Can Exacerbate Colitis

    Titanium dioxide, one of the most-produced nanoparticles worldwide, is being used increasingly in foodstuffs. When intestinal cells absorb titanium dioxide particles, this leads to increased inflammation and damage to the intestinal mucosa in mice with colitis. Researchers at the University of Zurich recommend that patients with colitis should avoid food containing titanium dioxide particles.

  • New bacterial defense mechanism of the CRISPR-Cas system uncovered

    Researchers led by Martin Jinek of the University of Zurich have found an unprecedented defense mechanism by which bacteria defend themselves against invading viruses. When the bacterial immune system gets overwhelmed, the CRISPR-Cas system produces a chemical signal that activates a second enzyme which helps in degrading the invaders’ genetic material. This process is very similar to an antiviral mechanism of the human innate immune system.

  • Generous people live happier lives

    Generosity makes people happier, even if they are only a little generous. People who act solely out of self-interest are less happy. Merely promising to be more generous is enough to trigger a change in our brains that makes us happier. This is what UZH neuroeconomists found in a recent study.

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