Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. Health & Medicine

    Breathe Easier: Lung surgery aids some emphysema patients

    Surgery to remove diseased portions of the upper lungs can help emphysema patients breathe more efficiently, depending on the patient's health and where the damaged tissues are.

  2. Health & Medicine

    Novel tack against diabetes

    Thwarting the production of immune proteins that induce inflammation prevents diabetes-prone mice from developing the disease.

  3. Health & Medicine

    Bone Builder: New drug could heal hard-to-mend fractures

    A synthetic compound can heal broken bones that are so damaged they don't knit on their own, a study in rats and dogs shows.

  4. Health & Medicine

    Boosting the TB vaccine

    A new vaccine for tuberculosis outperforms the current one in tests on animals.

  5. Health & Medicine

    Preeclampsia Progress: Blood test for predicting pregnancy problems

    A natural compound called asymmetric dimethylarginine (ADMA) may play a role in preeclampsia, a pregnancy complication.

  6. Health & Medicine

    Upsetting a Delicate Balance: One gene may underlie various immune diseases

    One form of an immune-system gene shows up more frequently in people with diabetes or certain thyroid diseases than in people free of those illnesses.

  7. Health & Medicine

    Do more infections mean less asthma?

    Young infants kept out of day care and having no more than one older sibling are significantly more likely to develop asthma than are babies who have greater exposure to other children.

  8. Health & Medicine

    Protein implicated in Parkinson’s disease

    Inhibiting the natural protein cyclo-oxygenase-2, or COX-2, might help fight Parkinson's disease.

  9. Health & Medicine

    DNA vaccine immunizes fetal lambs

    Canadian scientists have devised a way to vaccinate fetal lambs, which could spawn more research into in utero methods for preventing the spread of disease from mothers to their babies.

  10. Health & Medicine

    Protein Pump: Experimental therapy fights Parkinson’s

    Bathing surviving dopamine-making neurons with a natural protein that induces nerve-fiber growth reverses some of the symptoms in Parkinson's disease patients.

  11. Health & Medicine

    Shots stop allergic reactions to venom

    An immune therapy prevents allergic reactions to the sting of the jack jumper ant, a pest common to Australia.

  12. Health & Medicine

    Deadly Stowaways: Seeds of cancer in transplant recipients are traced back to donors

    Precancerous cells that grow into Kaposi's sarcoma are sometimes introduced into a person in an organ transplant.