1. Health & Medicine

    Immunity’s Eyes

    Proteins called toll-like receptors allow human immune cells to detect microbes.

  2. Health & Medicine

    Milk seems to guard against breast cancer

    Norwegian scientists have linked high milk consumption to low incidence of breast cancer.

  3. Health & Medicine

    Hindering glutamate slows rat brain cancer

    Compounds that inhibit the amino acid glutamate impede a form of brain cancer called glioma in rats.

  4. Health & Medicine

    Insulin lowers more than blood sugar

    Insulin may reduce inflammation and protect the heart.

  5. Health & Medicine

    Healing the heart from within

    An unusual mouse strain can regenerate heart tissue when the organ is damaged.

  6. Health & Medicine

    Stem cell research marches on

    Cells from human embryos can be transformed into heart cells or insulin-secreting cells.

  7. Health & Medicine

    Drugs Counter Mad Cow Agent in Cells

    Fueled only by promising studies of cells, a California research team has invited controversy by beginning to give a little-used malaria drug to patients who have the human version of mad cow disease.

  8. Health & Medicine

    Vaccine Verity

    Widely publicized concerns about vaccination leading to autism, multiple sclerosis, and diabetes have not been borne out by research.

  9. Humans

    Cloning hearing creates media frenzy

    A panel reviewing human cloning heard the pros and cons of the issue during a fiery debate.

  10. Humans

    Bush favors some stem cell research

    President Bush said he would support work on stem cells that already had been propagated from embryos otherwise fated for disposal in fertility clinics, but he opposes financing the destruction of additional embryos to create new cell lines.

  11. Health & Medicine

    Could this be the end of the monthly period?

    Two compounds stop menstruation in monkeys, suggesting that similar drugs might someday enable women to bypass monthly bleeding.

  12. Health & Medicine

    Germ-Fighting Germs