Humans
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We summarize the week's scientific breakthroughs every Thursday.
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Health & MedicineShuttling medicines via blood cells
Researchers have developed a way of encapsulating drugs in red blood cells, which can be used to deliver low doses of anti-inflammatory drugs to cystic fibrosis patients.
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Health & MedicineStanding Up to Gravity
Studies in space can help physicians better understand a disorder in which patients get faint or dizzy while standing.
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HumansSolar series wins award for Science News
The Solar Physics Division of the American Astronomical Society has given its 2002 popular writing award to Ron Cowen and Sid Perkins for a two-part series on cyclic variations in the sun's activity.
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Health & MedicineEfficient Germ: Human body boosts power of cholera microbe
Some genes in the cholera-causing bacterium Vibrio cholerae are activated and others are silenced when the microbe passes through the human gut, changes that make the bacterium more virulent.
By Nathan Seppa -
Health & MedicineTransplant Triumph: Cloned cow kidneys thrive for months
Cow kidneys and other tissue made by cloning ward off immune rejection after transplantation into cows.
By John Travis -
Health & MedicineDieting woes tied to hunger hormone
A rise in the appetite-enhancing hormone ghrelin after weight loss may explain why dieters regain pounds.
By John Travis -
Health & MedicineArthritis drug fights Crohn’s disease
The inflammation-fighting drug infliximab can hold off the painful symptoms of Crohn's disease for as long as a year in many patients.
By Nathan Seppa -
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Health & MedicineLearning from leprosy’s nerve damage
The bacterium that causes leprosy directly damages a protective sheathing around many nerve cells.
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Health & MedicineWhat Activates AIDS?
New studies suggest that a natural process called immune activation—the signaling that alerts immune cells of foreign invaders—plays a key role in explaining why infection with the human immunodeficiency virus progresses to AIDS more quickly in some people than in others.
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Health & MedicineSickening Food
If food that was going to leave you with gut-wrenching cramps — or more — tasted sickening, few people would indulge. The problem, of course, is that sickening food can taste quite scrumptious. Foods that look, smell, and taste yummy can still harbor disease-causing pathogens. Mead et al./Emerging Infectious Diseases Indeed, when the hour of […]
By Janet Raloff -
Health & MedicineEat Broccoli, Beat Bacteria: Plant compound kills microbe behind ulcers and a cancer
A chemical abundant in broccoli and certain other vegetables kills ulcer-causing Helicobacter pylori bacteria in the laboratory and inhibits stomach cancer in mice.
By Ben Harder