Health & Medicine
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Health & MedicineIs penicillin-allergy rate overstated?
A study finds that 20 of 21 people who reported having a penicillin allergy when filling out paperwork during a hospital visit in fact don't have one, suggesting that the prevalence of this allergy is overstated.
By Nathan Seppa -
Health & MedicineMarker signals esophageal cancer
Silencing of the gene that encodes the cancer-suppressing protein APC is common in people with esophageal cancer, suggesting that physicians might use this genetic abnormality as a marker for the disease.
By Nathan Seppa -
Health & MedicineVaccine protects monkeys from Ebola virus
A combination of a DNA vaccine and a vaccine based on a genetically modified common cold virus enables monkeys to resist Ebola virus, the first evidence that an Ebola vaccine works in primates.
By Nathan Seppa -
Health & MedicineNew sources and uses for stem cells
Human skin and scalp tissue may provide a source of neural stem cells.
By John Travis -
Health & MedicinePesticide tied to Parkinson’s disease
Rodents exposed to massive amounts of the pesticide rotenone develop a condition similar to Parkinson's disease.
By John Travis -
Health & MedicineOld antibiotic takes on Alzheimer’s
An antibiotic that binds copper and zinc may prevent brain deposits that cause Alzheimer's disease.
By John Travis -
Health & MedicineDoes vitamin A aid learning?
A lack of Vitamin A may cause learning and memory problems, albeit potentially reversible ones.
By John Travis -
Health & MedicineNew role for cholesterol-lowering drugs
Drugs that lower cholesterol benefit patients who have just had a heart attack or chest pains, regardless of the patient's initial cholesterol levels.
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Health & MedicineIt’s that time. . .for heart attacks?
A small study of young women already at high risk of having a heart attack suggests that heart attacks are most frequent when estrogen levels are low, soon after a woman's period begins.
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Health & MedicineBig meals boost heart attack risk
Unusually heavy meals boost a person's chance of developing a heart attack, at least among those people who already have risk factors for heart disease.
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Health & MedicineTeasing out tea’s heart-healthy effect
Drinking black tea makes a person's blood vessels dilate more easily, which may explain why drinking tea can protect against heart disease.
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Health & MedicineNitric oxide may benefit damaged hearts
A small study in mice suggests that inhaling nitric oxide may protect against tissue damage after a heart attack.