Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. Health & Medicine

    Lyme microbe forms convenient bond with tick protein

    The bacterium that causes Lyme disease commandeers a gene in the deer tick, inducing overproduction of a salivary protein that the bacterium uses to escape immune detection once it's inside a mammal.

  2. Health & Medicine

    Echinacea Disappoints: There’s still no cure for the common cold

    The folk remedy echinacea shows no benefit against the common cold.

  3. Health & Medicine

    Cancer Switch: Good gene is shut off in various malignancies

    A gene called Reprimo is shut down in several cancers but rarely in healthy cells.

  4. Health & Medicine

    Vaccines against Marburg and Ebola viruses advance

    Two new vaccines protect against the lethal Ebola and Marburg viruses, tests in monkeys show.

  5. Health & Medicine

    Epilepsy surgery stands test of time

    Brain surgery for people with severe epilepsy keeps many of these patients free of seizures for decades.

  6. Health & Medicine

    Running Interference: Fresh approach to fighting inflammation

    Two experimental drugs stop inflammation in mice by preserving a natural inflammation inhibitor.

  7. Health & Medicine

    Sleepy teens haven’t got circadian rhythm

    High schools that begin classes as early as 7:30 a.m. deprive teenagers of sleep, and attempts to reset an adolescent's biological clock fail to solve the problem.

  8. Health & Medicine

    Attack on Elephantiasis: Antibiotic offers weapon against tropical scourge

    An antibiotic called doxycycline can cure people of elephantiasis, a parasitic disease, by killing the bacterium that the parasite needs to survive.

  9. Health & Medicine

    Cocaine abusers get more heart aneurysms

    Regular cocaine users are about four times as likely as nonusers to have an aneurysm in a coronary artery.

  10. Health & Medicine

    No Sugar Babies: Study suggests treating gestational diabetes

    Women with gestational diabetes who receive dietary counseling, regular blood sugar monitoring, and insulin as needed lessen their risk of birth complications.

  11. Cancer Link: MicroRNA grabs the spotlight

    A type of genetic molecule known as microRNA can regulate gene activation and, in some cases, accelerate cancer growth.

  12. Health & Medicine

    Vaccine Gains: Shot protects seniors from shingles flare-ups

    An experimental vaccine prevents half of all cases of shingles, a painful skin disease that typically afflicts the elderly.