Uncategorized

  1. Health & Medicine

    Enzyme needed to degrade acetaldehyde

    A shortage of the enzyme ALDH-2, which is needed to break down alcohol in the body, causes a buildup of the cancer-linked chemical acetaldehyde, perhaps explaining why alcoholics lacking ALDH-2 have high rates of mouth and throat cancers.

    By Nathan Seppa
  2. Health & Medicine

    Gene mutation for color blindness found

    Scientists have identified the gene that is mutated in people who have color blindness on the Pacific island of Pingelap, perhaps paving the way for genetic screening.

    By Nathan Seppa
  3. Earth

    The Motion in the Ocean

    Scientists dive deep to learn how the sea circulates.

    By Kathryn Brown
  4. Earth

    An Ounce of Prevention

    Fresh approaches may cut back greenhouse-gas emissions.