Nathan Seppa
Biomedical Writer (retired September 2015)
 
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All Stories by Nathan Seppa
- 			 Health & Medicine Health & MedicineNeuron Savers: Gene therapy slows Alzheimer’s diseasePutting extra copies of the gene for a cellular growth factor into the brains of people with Alzheimer's disease appears to slow the degenerative condition. 
- 			 Health & Medicine Health & MedicineWhen the stomach gets low on acidA study in mice shows that a shortage of stomach acid can lead to cancer, apparently as a result of bacterial overgrowth and inflammation. 
- 			 Health & Medicine Health & MedicineLicorice ingredient ferrets out herpesA compound in licorice homes in on lab-grown cells infected with a herpes virus and induces them to self-destruct. 
- 			 Health & Medicine Health & MedicineMessy Mix? Combined vaccine yields fewer antibodiesSome common childhood vaccines don't seem to work as well when administered with, or at the same time as, other vaccines. 
- 			 Health & Medicine Health & MedicineMolecular Switch: Protein may influence chronic-pain disorderA cell-surface protein found in the nervous system may play a central role in a chronic-pain condition known as neuropathy. 
- 			 Health & Medicine Health & MedicineVitamin E Loses Luster: Nutrient tests show disappointing resultsIn people who have a history of heart disease or diabetes, vitamin E supplements don't improve overall health and might even boost heart-failure risk. 
- 			 Health & Medicine Health & MedicineHepatitis B link to cancer is clarifiedA kind of hepatitis B called genotype C is more likely to lead to liver cancer than are other genotypes of the hepatitis virus. 
- 			 Health & Medicine Health & MedicineTungsten-alloy shrapnel might cause cancerWounds caused by shrapnel comprising tungsten alloyed with nickel and cobalt cause cancer in rats, raising questions about the wisdom of using tungsten in munitions. 
- 			 Health & Medicine Health & MedicineBlindness Hazard: Gene variant tied to macular degenerationPeople who make a particular form of an immune system protein have a heightened risk of developing old-age blindness. 
- 			 Health & Medicine Health & MedicineProtein may aid stroke recoveryTests in mice have shown that erythropoietin, a red blood cell growth factor, can reverse brain damage caused by strokes. 
- 			 Health & Medicine Health & MedicineCell transplants make gains versus diabetesTransplanting insulin-making cells from a single cadaver into people with type 1 diabetes can reverse the disease in some people. 
- 			 Health & Medicine Health & MedicineTo Stanch the Flow: Hemophilia drug curbs brain hemorrhageA blood-clotting drug helps some people recover from a bleeding stroke.