Nathan Seppa
Biomedical Writer (retired September 2015)
 
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All Stories by Nathan Seppa
- 			 Health & Medicine Health & MedicineHidden Damage: Parkinson’s harm to nerves in heart may explain dizziness and faintingParkinson's disease patients have damaged nerve endings in the heart, kidneys, and thyroid gland, suggesting the disease harms the autonomic nervous system that regulates involuntary functions of these and other organs and glands. 
- 			 Health & Medicine Health & MedicineRisk Factor: Genetic defect hikes breast cancer threatA mutation already linked to several types of cancer doubles the risk of breast cancer in a woman and multiplies men's slight risk of the disease even more dramatically. 
- 			 Health & Medicine Health & MedicineCardiac Culprit: Autopsies implicate C-reactive protein in fatal heart attacksOf people who died suddenly, those who succumbed to a heart attack had an abundance of the inflammation indicator C-reactive protein in the blood, even though few had had outward signs of heart problems. 
- 			 Health & Medicine Health & MedicineDrug for dry mouth may prevent lung cancerA drug prescribed for a condition called dry mouth stymies formation of precancerous lung lesions in cigarette smokers. 
- 			 Health & Medicine Health & MedicineGene mutation tied to lung cancerScientists have identified a gene, dubbed LKB1/STK11, that is often mutated in people with a particularly deadly form of lung cancer. 
- 			 Health & Medicine Health & MedicineCompound attacks pancreatic cancerA protein fragment dubbed NK4 can stall the development of pancreatic cancer in mice. 
- 			 Health & Medicine Health & MedicineSt. John’s wort hinders cancer drugThe herbal remedy St. John's wort can interfere with the effectiveness of the anticancer drug irinotecan. 
- 			 Health & Medicine Health & MedicinePulse pressure linked to dialysis death ratePeople on kidney dialysis who have high pulse pressure—the difference between the top and bottom numbers on a blood pressure reading—seem to be at a greater risk of dying than those with low pulse pressure. 
- 			 Health & Medicine Health & MedicineClotting protein hinders nerve repairA blood-clotting protein called fibrin seems to exacerbate the regrowth problems that plague severed nerves. 
- 			 Health & Medicine Health & MedicineResearchers find how rhubarb remedy eases choleraResearchers in Japan have identified a natural compound responsible for the effectiveness of one rhubarb-based remedy to combat the overwhelming diarrhea that comes with cholera. 
- 			 Health & Medicine Health & MedicineBrave New Drug: Compound stops cowpox and smallpox virusesA new drug called HDP-CDV stops smallpox virus from replicating in lab tests and cowpox virus from replicating in mice, suggesting it could work as a treatment for smallpox in people. 
- 			 Health & Medicine Health & MedicineClot busters may put elderly people at riskVery elderly people who get clot-dissolving drugs immediately after a heart attack are more likely to die during their hospital stay than similar-age patients who don't get them.