Health & Medicine
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Health & MedicinePossible prostate cancer culprit
Scientists identify a type of stem cell and a gene that play a role in the disease.
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Health & MedicineHealthy teeth, healthy people
Talk leaves journalists flossing for details on oral health.
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Health & MedicineBrain at the breaking point
New research, showing how stresses can snap tiny tracks inside brain connections, may improve understanding of traumatic brain injury.
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Health & MedicineDolphins may offer clues to treating diabetes
Insulin-resistance switch helps maintain glucose levels in dolphin brains, suggesting possible clues to treating diabetes in people.
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Health & MedicineTumor tracking gets personal
A new method has the potential to use genome science to improve cancer care.
By Eva Emerson -
Health & MedicineLunch time for stem cells
Kristen Brennand is trying to tease out how the cells in brains of healthy people differ from those in schizophrenic patients. The problem: No one wants to give up a chunk of brain for her to study. So she’s fashioning her own clumps of brain cells from tissue people willingly part with – skin.
By Janet Raloff -
HumansDecoding diversity in Bushmen
Decoding the genetic makeup of tribal leaders and Archbishop Desmond Tutu uncovers rich genetic diversity in southern Africans.
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Health & MedicineMutations may underlie some stuttering
Defects in three genes governing basic cell metabolism are found in a portion of cases, researchers find.
By Nathan Seppa -
Health & MedicineInflammatory bowel disease hikes blood clots
Study finds people with Crohn’s disease or ulcerative colitis have greatest risk during painful episodes.
By Nathan Seppa -
LifeSperm’s pore propulsion
Scientists identify a key proton channel that helps explain the dash to fertilization.
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Health & MedicineProtein clumps like a prion, but proves crucial for long-term memory
Study in slugs hints that some molecular 'misbehavior' in neurons may help solidify learning.
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AgricultureEPA reviews hints of weed killer’s fetal risks
The Environmental Protection Agency will be convening meetings of its Scientific Advisory Panel on pesticides throughout 2010 to probe concerns about the safety of atrazine, a weed killer on which most American corn growers rely. The first meeting of these outside experts started Tuesday. And although a large number of studies have indicated that atrazine can perturb hormones in animals and human cells — and might even pose a possible risk of cancer amongst heavily exposed people, these outcomes were not the focus of EPA’s review Tuesday. Risks to babies were.
By Janet Raloff