Health & Medicine
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LifeGene profiles may predict TB prognosis
A molecular profile may help doctors predict who will get sick from TB infections.
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Health & MedicineTraffic may drive some people to diabetes
Urban air pollution — especially the particles and gases emitted by heavy traffic — can increase a senior citizen’s risk of developing type-2 diabetes, according to a new German study. If confirmed, its authors say, pollution would represent a “novel and potentially modifiable risk factor” for the metabolic disorder.
By Janet Raloff -
Health & MedicineTeen hearing loss rate worsens
The percentage of adolescents with some decline has increased since the 1990s, a study shows.
By Nathan Seppa -
Health & MedicineThe high cost of diabetes
Although an estimated 7.8 percent of Americans have been diagnosed with diabetes, patients with this metabolic disease rack up 23 percent of hospital costs nationwide, a new federal analysis finds. Their collective hospital bill in 2008, the most recent year for which data were available: almost $83 billion.
By Janet Raloff -
LifeMuscles remember past glory
Extra nuclei produced by training survive disuse, making it easier to rebuild lost strength.
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Health & MedicineWant a baby? Relax . . .
Scientists have just confirmed what obstetricians knew anecdotally for years — that women under stress can have a difficult time getting pregnant. What’s new: Biochemical markers quantified the degree of stress — and potentially the type — affecting fertility.
By Janet Raloff -
TechResearch trials pose challenge to medical privacy
How — or even whether — to share a medical data collected on research subjects poses a growing dilemma. Certainly, doctors would benefit from knowing if their patients had been receiving medicines, physical therapies or dietary supplements. Or if a patient had a history of drug abuse, mental illness, sexually transmitted diseases or engaging in risky behaviors. But in the wrong hands, such sensitive data could compromise an individual’s ability to keep a job — even retain shared custody rights to children during a contentious divorce.
By Janet Raloff -
Health & MedicineDelivering a knockout
Scientists have finally succeeded in genetically engineering rats.
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Health & MedicineSpindles foster sound slumber
In “a very clever study,” researchers show that distinctive brain signals help sustain sleep in noisy environments.
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Health & Medicine‘Miracle’ tomato turns sour foods sweet
Pucker no more: That seems to be one objective of research underway at a host of Japanese universities. For the past several years, they’ve been developing bio-production systems to inexpensively churn out loads of miraculin — a natural taste-altering protein that makes sour foods seem oh so sweet. Their newest biotech reactor: grape tomatoes.
By Janet Raloff -
Health & MedicineChicken poses significant drug-resistant Salmonella threat
More than one-in-five retail samples of raw chicken collected in Pennsylvania hosted Salmonella, a new study found — twice the prevalence reported in a 2007 U.S. Food and Drug Administration survey. And where the bacteria were present, more than half were immune to the germicidal activity of at least one antibiotic. Nearly one-third were resistant to three or more.
By Janet Raloff -
Health & MedicineDrumming up anthrax
Mention anthrax and about the last thing that comes to mind is whether there’s a drum in the room. Yet tom-toms — or at least the stretched animal hides on their heads — can sometimes spew toxic anthrax spores into the air. Indeed, the Centers for Disease Control and Prevention recently highlighted the case of a previously healthy 24-year-old woman who nearly died, last December, after attending a “drumming circle” in New Hampshire.
By Janet Raloff