Health & Medicine
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Health & MedicineTattoo rashes linked to ink
Tainted supplies caused outbreak of stubborn bacterial skin infections.
By Nathan Seppa -
LifeAntibiotics linked to fat buildup
Research in mice implicates changes in gut microbe mix; study in infants finds excess weight gain after use of the drugs.
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Health & MedicineOvulation spurred by newfound semen ingredient
A common growth-boosting protein may act as a pregnancy-protecting hormone in humans.
By Meghan Rosen -
ChemistrySupersmall lab-on-a-chip is superfast
Two-chamber nanowire device that quickly finds diagnostic molecules in blood could be a lifesaver.
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Health & MedicineBrain’s hidden sewers revealed
Specialized cells host a hitherto unknown cleansing system.
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LifeMantis shrimp flub color vision test
Unexpectedly poor results on crustacean eye exams suggest there’s another way to perceive color.
By Susan Milius -
EarthAntibacterial agent can weaken muscle
Triclosan impairs the power of the heart and other muscles in two species and at relatively low doses.
By Janet Raloff -
LifeSmell deals with deprivation differently
One odor-related brain region called the orbitofrontal cortex keeps the sense primed for resumed input during a cold.
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ChemistryScaffolding props up failing hearts
Hydrogel treatment stimulates cell repair and blood vessel regrowth in pig experiments.
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Health & MedicineThinner isn’t always better in diabetes
Normal-weight people who develop diabetes have higher mortality than people who are overweight or obese at the disease’s onset
By Meghan Rosen -
Health & MedicineMonkey brains sensitive to others’ flubs
Some of the brain’s nerve cells are programmed to light up only upon witnessing another’s error.