Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. Health & Medicine

    Neuron Savers: Gene therapy slows Alzheimer’s disease

    Putting extra copies of the gene for a cellular growth factor into the brains of people with Alzheimer's disease appears to slow the degenerative condition.

  2. Health & Medicine

    When the stomach gets low on acid

    A study in mice shows that a shortage of stomach acid can lead to cancer, apparently as a result of bacterial overgrowth and inflammation.

  3. Health & Medicine

    Licorice ingredient ferrets out herpes

    A compound in licorice homes in on lab-grown cells infected with a herpes virus and induces them to self-destruct.

  4. Health & Medicine

    Messy Mix? Combined vaccine yields fewer antibodies

    Some common childhood vaccines don't seem to work as well when administered with, or at the same time as, other vaccines.

  5. Health & Medicine

    Molecular Switch: Protein may influence chronic-pain disorder

    A cell-surface protein found in the nervous system may play a central role in a chronic-pain condition known as neuropathy.

  6. Health & Medicine

    Vitamin E Loses Luster: Nutrient tests show disappointing results

    In people who have a history of heart disease or diabetes, vitamin E supplements don't improve overall health and might even boost heart-failure risk.

  7. Health & Medicine

    Hepatitis B link to cancer is clarified

    A kind of hepatitis B called genotype C is more likely to lead to liver cancer than are other genotypes of the hepatitis virus.

  8. Health & Medicine

    Tungsten-alloy shrapnel might cause cancer

    Wounds caused by shrapnel comprising tungsten alloyed with nickel and cobalt cause cancer in rats, raising questions about the wisdom of using tungsten in munitions.

  9. Health & Medicine

    Blindness Hazard: Gene variant tied to macular degeneration

    People who make a particular form of an immune system protein have a heightened risk of developing old-age blindness.

  10. Health & Medicine

    Protein may aid stroke recovery

    Tests in mice have shown that erythropoietin, a red blood cell growth factor, can reverse brain damage caused by strokes.

  11. Health & Medicine

    Cell transplants make gains versus diabetes

    Transplanting insulin-making cells from a single cadaver into people with type 1 diabetes can reverse the disease in some people.

  12. Health & Medicine

    To Stanch the Flow: Hemophilia drug curbs brain hemorrhage

    A blood-clotting drug helps some people recover from a bleeding stroke.