Health & Medicine
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Health & MedicineHidden Damage: Parkinson’s harm to nerves in heart may explain dizziness and fainting
Parkinson'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.
By Nathan Seppa -
Health & MedicineCould nicotine patch fight depression?
Chronic nicotine administration blocked a symptom of depression in an animal model of the disease.
By Janet Raloff -
Health & MedicineFetal stress begets adult hypertension
Intense stress during pregnancy may program the baby's development in ways that foster high blood pressure during adulthood.
By Janet Raloff -
Health & MedicineWith this bait, TB won’t play possum
An oral tuberculosis vaccine, designed to help curtail the spread of the disease in wildlife populations, may also find use in people.
By Janet Raloff -
Health & MedicineNo benefit from screening
Two large studies confirm that a urine test for a common childhood cancer—neuroblastoma—offers no benefit.
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Health & MedicineCancer Link Cooks Up Doubt: Heating may form potential carcinogen in food
Foods cooked at high temperatures contain large concentrations of acrylamide, a compound suspected to cause cancer in people, but researchers are cautious about acting on preliminary, unpublished data.
By Ben Harder -
Health & MedicineVirus gives cancer the cold treatment
A genetically engineered version of a common cold virus appears to kill cancer cells without harming healthy tissue.
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Health & MedicineDeadly Pickup: Enzyme permits plague germ to ride in fleas
Acquisition of a gene that enables the plague bacterium to live inside blood-sucking fleas may have set the stage for the Black Death.
By John Travis -
Health & MedicineRisk Factor: Genetic defect hikes breast cancer threat
A 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.
By Nathan Seppa -
Health & MedicinePut Out to Pasture: Strategy to prolong antibiotics’ potency
The use of antibiotics to promote growth in farm animals hastens the end of their medical effectiveness.
By Ben Harder -
Health & MedicineShocking findings
Implanted defibrillators reduce the occurrence of sudden death by about a third among people who had previous heart attacks and continue to suffer impaired heart function.
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Health & MedicineMammograms on Trial
New controversy about old data has physicians, women, and policy analysts struggling to decide whether all women should be screened with mammography in order to reduce deaths due to breast cancer.