Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. Health & Medicine

    Pancreatic enzymes may play role in shock

    Pancreatic enzymes used for digestion may cause shock when they leach out of the small intestine and form a substance that activates white blood cells.

  2. Health & Medicine

    Novel diabetes strain has rapid onset

    Japanese researchers have confirmed that some patients with type 1 diabetes have a novel form of the disease that's not caused by immune cells attacking the pancreas.

  3. Health & Medicine

    New Compounds Inhibit HIV in Lab

    Two new compounds uncovered by pharmaceutical scientists block integrase, an enzyme essential to the replication cycle of the virus that causes AIDS.

  4. Health & Medicine

    Poor glucose metabolism risks clots

    Excess concentrations of insulin in the blood may hamper the body's ability to break down blood clots efficiently.

  5. Health & Medicine

    Impotence high after prostate removal

    Roughly 60 percent of men who have a cancerous prostate gland removed are subsequently impotent.

  6. Health & Medicine

    Oxygen limits infections from surgery

    Giving patients extra oxygen during and shortly after colorectal surgery halves the incidence of infection.

  7. Health & Medicine

    Nerve cells of ALS patients harbor virus

    Fragments of viral genetic material show up with unusually high frequency in nerve tissue of patients with ALS, or Lou Gehrig's disease, suggesting a link between the virus and this lethal illness.

  8. Health & Medicine

    Glutamate glut linked to multiple sclerosis

    The chemical glutamate can overwhelm nervous-system cells called oligodendrocytes, adding to the nerve damage caused by wayward immune cells in multiple sclerosis.

  9. Health & Medicine

    Hysterectomy often improves sex life

    A study of more than 1,000 women who had hysterectomies finds that after the operation, women generally wanted and had sex more often, were more likely to reach orgasm, experienced less vaginal dryness, and were less likely to have pain during sex than was the case before surgery.

  10. Health & Medicine

    Operation overload: Kids’ backpacks

    Sixth-graders in Italy routinely carry school backpacks that equal, on average, 22 percent of their body weight, a finding researchers link to an earlier report that more than 60 percent of children in this age group had experienced low-back pain more than once.

  11. Health & Medicine

    Stem cells repair rat spinal cord damage

    Using embryonic stem cells from mice, researchers restored some movement in paralyzed rats that had undergone a crippling spinal injury.