Humans
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineCoffee beans, cavity-causing germs
Compounds in coffee loosen the grip of bacteria that cause tooth decay.
By Ben Harder -
Health & MedicineHigh homocysteine tied to Alzheimer’s
Research has linked the incidence of Alzheimer's disease and other forms of dementia to elevated blood concentrations of the amino acid homocysteine.
By Nathan Seppa -
Health & MedicineTracking Tumors
Researchers are trying to visualize molecular and cellular changes as a cancer responds to therapy in order to predict whether treatments are effective sooner than it's currently possible to determine.
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Health & MedicineVaccine Power: Immune cells target cancerous tissue
Researchers are enlisting a person's own immune system to attack prostate tissue, including cancerous cells.
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HumansAnd Counting . . . : Latest census resets U.S. population clock
The 2000 census missed a little more than 1 percent of the nation’s population, due in part to a surge of undocumented immigrants to the United States in the late 1990s.
By Sid Perkins -
ArchaeologyAlmond Joy, Stone Age Style: Our ancestors had a bash eating wild nuts
New finds at a 780,000-year-old Israeli site indicate that its ancient residents used stone tools to crack open a variety of hard-shelled nuts that were gathered as a dietary staple.
By Bruce Bower -
Health & MedicineSuspicious DNA: Chromosome study homes in on Alzheimer’s disease
Several human chromosomes now face intensified scrutiny for possibly harboring genes involved in Alzheimer's disease.
By Ben Harder -
Health & MedicineChill Out: Mild hypothermia aids heart attack recovery
Icing down patients who have just had a heart stoppage may boost their survival chances and prevent brain damage in those who pull through.
By Nathan Seppa -
Health & MedicineIndoor tanning ups all skin cancer rates
Artificial sunbathing using ultraviolet lights increases the risk of all types of skin cancer.
By Ben Harder -
Health & MedicineAlzheimer’s vaccine trial is suspended
A drug company in Ireland has halted tests of an experimental vaccine for Alzheimer's disease.
By John Travis -
Health & MedicineVitamin Void: Heart disease may lurk in B12 deficiency
Meatless eating typically improves cardiovascular health, but a dietary shortage of vitamin B12 may lead to an overabundance of the amino acid homocysteine in some vegetarians, which could pose a risk to their hearts.
By Ben Harder -
Health & MedicineAntibody Warfare: Vaccine halts microbes in dialysis patients
A vaccine protects many kidney-dialysis patients from blood infection caused by the Staphylococcus aureus bacterium.
By Nathan Seppa