Health & Medicine

  1. Health & Medicine

    Death of a theory

    Three separate analyses of oral polio vaccine used in the 1950s in Africa deflate the theory that such a vaccine could have ignited the AIDS epidemic by containing virus-infected chimpanzee cells.

  2. Health & Medicine

    Gene therapy cures blindness in dogs

    Gene therapy to replace a defective RPE65 gene succeeds in bringing sight to three blind dogs, suggesting such therapy might reverse Leber congenital amauosis, a rare condition in which children are blind from birth.

  3. Health & Medicine

    New anthrax treatment works in rats

    By distorting a protein in the toxin that makes the anthrax bacterium deadly, scientists have discovered a promising way to treat the disease and possibly even to prevent it with a vaccine.

  4. Health & Medicine

    Tamoxifen dilates arteries in men

    The breast cancer drug tamoxifen can widen a narrowed coronary artery in men with heart problems.

  5. Health & Medicine

    Long-term ecstasy use impairs memory

    Extended use of the illicit drug called MDMA or ecstasy exacerbated memory problems in users aged 17 to 31, none of whom reported alcohol dependence.

  6. Health & Medicine

    Peptide puts mouse arthritis out of joint

    A compound called vasointestinal peptide, which binds to immune system T cells and macrophages, thwarts arthritis in mice.

  7. Health & Medicine

    Epileptic seizures may be predictable

    Patterns of mild electrical disturbance in the brains of epilepsy patients appear to foreshadow a seizure hours before its onset.

  8. Health & Medicine

    Anthrax Threat

    Anthrax has evolved from a disease that farmers sometimes caught from livestock to a potent biological weapon. The Centers for Disease Control and Prevention in Atlanta offers a highly accessible Web site that answers basic questions about transmission, treatment, and prevention of anthrax. The site also provides links to Web pages that explain the biology […]

  9. Health & Medicine

    Novel typhoid vaccine surpasses old ones

    A new vaccine links a sugar molecule found on the surface of the bacterium that causes typhoid fever with a genetically engineered version of the exotoxin protein, which arouses the immune system to churn out antibodies against the bacterium.

  10. Health & Medicine

    Germ-killing plastic wrap

    Biodegradable plastic that releases germ killers provides an example of what’s known as active packaging, and scientists report progress toward taking this concept to market. Paul Dawson and his colleagues at Clemson (S.C.) University are fashioning plastics from proteins found in corn, soy, and wheat. While these biodegradable polymers are being heated or compressed to […]

  11. Health & Medicine

    Vitaminlike compound eases rare disorder

    A vitaminlike substance called coenzyme Q10 helps people with familial cerebellar ataxia, a hereditary disorder that damages the spine and the part of the brain responsible for coordination.

  12. Health & Medicine

    Blood markers of clogging arteries emerge

    The concentration in blood of one chemically transformed cholesterol-carrying molecule may signal to doctors when a patient's heart disease has dangerously worsened.