Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. 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.

  2. Health & Medicine

    Protein may post lung cancer warning

    The protein Ki-67, sometimes present on tissue lining the lungs, may act as a warning sign of lung cancer risk for ex-smokers.

  3. Health & Medicine

    Once a cesarean, always a cesarean?

    Expectant mothers who've already given birth by cesarean section put themselves at increased risk of uterine rupture by trying vaginal birth.

  4. Health & Medicine

    Cox-2 shows up in stomach cancers

    The inflammatory enzyme Cox-2 is present in stomach tumors, suggesting that drugs that inhibit the enzyme might help supress tumor formation.

  5. Health & Medicine

    New drug fights a chronic leukemia

    A genetically engineered drug that fuses an antibody to a toxin attacks cancerous cells in hairy-cell leukemia.

  6. Health & Medicine

    Surgery for epilepsy outshines medication

    People with severe epilepsy who undergo brain surgery have markedly fewer disabling seizures during the following year than do those relying on medication.

  7. Health & Medicine

    Synthetic protein may yield malaria vaccine

    A molecule patterned after part of the parasite that causes most severe malaria induces a strong immune response in people.

  8. Health & Medicine

    Ebola May Enter Cell via Folate Gate

    A cell-surface molecule that normally binds to folate might be targeted by Ebola and Marburg viruses as their entry point to people's cells.

  9. Health & Medicine

    Reptilian drug may help treat diabetes

    The synthetic version of exendin-4, a compound in gila monster venom, helps insulin injections control blood sugar in people with type I, or juvenile-onset, diabetes.

  10. Health & Medicine

    Thinking blurs when blood sugar strays

    Blood sugar concentrations that are too high or too low can impair thinking and, in the case of low blood sugar, driving ability.

  11. Health & Medicine

    Sticky platelets boost blood clots

    Tests for genetic variations of a key protein on platelets, the cell-like blood components that form clots, and their propensity to clump could help physicians determine optimal medication for heart disease patients.

  12. Health & Medicine

    Marijuana may boost heart attack risk

    Marijuana seems to heighten the risk of heart attack in some people during the hour after which it is smoked.