Nathan Seppa

Biomedical Writer (retired September 2015)

All Stories by Nathan Seppa

  1. Health & Medicine

    Coffee linked to rheumatoid arthritis

    People who drink four or more cups of coffee per day appear more likely to get rheumatoid arthritis than are those drinking less.

  2. Health & Medicine

    Do zinc lozenges shorten common colds?

    People taking zinc to fight a cold report less coughing, less nasal discharge, and a shorter cold than do people getting a placebo.

  3. 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.

  4. 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.

  5. Health & Medicine

    Venison can contain E. coli bacteria

    Escherichia coli, which causes severe diarrhea in people, may be widespread in deer, a finding that raises concerns about preparation of wild-game meats.

  6. Health & Medicine

    New Australian virus infects people

    Australian scientists have identified a new virus, apparently spread by fruit bats, that causes birth defects in pigs and severe illness in some people exposed to infected pigs.

  7. Health & Medicine

    Indian encephalitis is traced to measles

    An outbreak of fatal encephalitis in India appears to have been caused by a strange form of rashless measles in a majority of the sick children tested.

  8. Health & Medicine

    Danes keeping drugs out of livestock

    Reducing the amount of antibiotics given to livestock in Denmark has lowered the amount of drug-resistant Enterococcus faecium bacteria in the meat of these animals.

  9. Health & Medicine

    Molecule may protect against kidney damage

    People with a gene for the protein called apoE-IV are less likely to have the dangerous complication of kidney failure after a heart-bypass operation than are people who make other versions of the protein.

  10. Health & Medicine

    Edible vaccine spawns antibodies to virus

    Genetically engineered potatoes can deliver an edible vaccine against Norwalk virus, a common diarrhea-causing pathogen.

  11. Health & Medicine

    Enzyme needed to degrade acetaldehyde

    A shortage of the enzyme ALDH-2, which is needed to break down alcohol in the body, causes a buildup of the cancer-linked chemical acetaldehyde, perhaps explaining why alcoholics lacking ALDH-2 have high rates of mouth and throat cancers.

  12. Health & Medicine

    Gene mutation for color blindness found

    Scientists have identified the gene that is mutated in people who have color blindness on the Pacific island of Pingelap, perhaps paving the way for genetic screening.