Nathan Seppa has been the biomedical writer at Science News since 1997. Previously, he worked at the Wisconsin State Journal, a daily newspaper in Madison, where he inaugurated the science beat. In the 1980s, he covered energy and economics for the Dow Jones News Service in the Wall Street Journal's Washington Bureau. In the 1970s, Seppa served as a public health volunteer in the Peace Corps in Zaire, now Congo. He hails from the Upper Peninsula of Michigan, where he worked as a miner and gravedigger to pay his way through college. He has a B.S. in Sociology and a M.A. in Journalism. Nathan speaks French and knows enough Swahili to get out of a tight spot.
Nathan Seppa's Articles
- NewsWomen who take ibuprofen or acetaminophen for headaches or inflammation boost their chances of developing high blood pressure.
- NewsBeer consumption seems to boost concentrations of vitamin B6 in blood and coincides with lower concentrations of homocysteine, a risk factor for heart disease.
- NewsA Nipah virus outbreak in Malaysia may have started when bats spread disease to pigs.
- NewsTwo technologies for transferring genes, one that uses mobile DNA called transposons and another that uses a weak virus, have proved successful in overcoming genetic disorders in mice.
- NewsA protein called Delta-1 stimulates stem cells in umbilical cord blood to proliferate in a lab dish, attach well to bone marrow when implanted into mice, and even proceed to the animal's thymus to become T cells.
- NewsPain caused by bone cancer in mice can be alleviated somewhat by osteoprotegerin, a drug being tested for osteoporosis, suggesting a possible new treatment for people with this cancer.
- NewsWomen with breast cancer who undergo partial-breast removal are just as likely to survive for at least 20 years as are women who have their entire breast removed.
- NewsA newly synthesized form of Vitamin D induces bone-making cells to capture calcium and fortify bone mass in rats, suggesting it might work against osteoporosis in people.
- NewsGene therapy to repair mutations that thwart development of essential immune cells has helped three babies to overcome severe combined immunodeficiency, in which a child is born without a functional immune system.
- NewsBy restarting the subdued self-destruct signal in cancer cells, researchers studying eye cancers have found a way to stop these cancers in cell cultures and in a rabbit model.