Nathan Seppa
Biomedical Writer (retired September 2015)
 
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All Stories by Nathan Seppa
- 			 Health & Medicine Health & MedicineHerpes vaccine progressesA new vaccine for genital herpes protects some women but not men. 
- 			 Health & Medicine Health & MedicineHerpes vaccine progressesA new vaccine for genital herpes protects some women but not men. 
- 			 Health & Medicine Health & MedicineNew tests may catch bicyclers on dopeTwo new tests, on blood and urine, detect the presence of synthetic erythropoietin, a drug that boosts red blood cell counts and enhances stamina. 
- 			 Health & Medicine Health & MedicineDid colonization spread ulcers?A comparison of strains of Helicobacter pylori, the bacterium that causes ulcers, suggests that colonists brought it to the New World. 
- 			 Health & Medicine Health & MedicineFirst-Line Treatment: Chronic-leukemia drug clears a big hurdleIn its first large-scale test on newly diagnosed leukemia patients, the drug imatinib—also called Gleevec and STI-571—stopped or reversed the disease in nearly all patients receiving it. 
- 			 Health & Medicine Health & MedicineVisionary science for the intestineA tiny disposable flash camera that a person swallows can detect problems in the small intestine. 
- 			 Health & Medicine Health & MedicineBone scan reveals estrogen effectsUsing a scanning technology called microcomputerized tomography, scientists have a new way to look at the difference between bone exposed to estrogen and bone deprived of it. 
- 			 Health & Medicine Health & MedicineCommon antibiotic may cure river blindnessTests in cows suggest that tetracycline might kill the tiny worm that spreads river blindness, a disease that infects about 18 million people. 
- 			 Health & Medicine Health & MedicineImaging Parkinson’sA new brain-imaging technique can supply proof of Parkinson's disease in people whose symptoms fall short of the standard definition of the disease. 
- 			 Health & Medicine Health & MedicineZapping bone brings relief from tumor painBy unleashing radio waves inside bone, researchers have stopped intractable pain in people with cancer that has spread to their skeletons. 
- 			 Health & Medicine Health & MedicineAn alternate approach to Parkinson’sWhile levodopa is the treatment of choice for Parkinson's disease, drugs called dopamine agonists, which mimic the neurotransmitter dopamine, may work as well early in the disease, cause fewer side effects, and preserve levodopa's effectiveness. 
- 			 Health & Medicine Health & MedicineBypass surgery in elderly works fineCoronary bypass surgery works as well in people over age 75 as it does in people 15 years younger.