Health & Medicine
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Health & MedicineAnticancer protein might combat HIV
The tumor suppressor p21 shows up in abundance in some people who are impervious to developing AIDS despite being infected, a study shows.
By Nathan Seppa -
MathMarathoning made easy
Or at least endurable, by calculating and then keeping to a physiologically sustainable pace.
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Health & MedicineProtein implicated in many cancers
A hormone receptor that shows up in 11 tumor types might make a good target for drugs, a new study suggests.
By Nathan Seppa -
LifeGene therapy for depression
Researchers were able to reduce pathological behaviors in mice by delivering genetic material to a particular brain region.
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HumansHow testing improves memory
By creating associations, quizzes improve recall much more effectively than just reviewing notes.
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ChemistryGuards of the blood-brain barrier identified
Specialized cells called pericytes are crucial to protecting the central nervous system, two new studies demonstrate.
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LifeMore than a chicken, fewer than a grape
A decade after the completion of the Human Genome Project, the exact number of human genes remains elusive.
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Health & MedicineImplants help heroin addicts kick habit
Installing a slow-release drug under the skin enables some abusers of illicit and prescription drugs to get through withdrawal, a new study shows.
By Nathan Seppa -
Health & MedicineMice robbed of darkness fatten up
Time of day can affect calories' impact, a study shows.
By Janet Raloff -
Health & MedicineHow being deaf can enhance sight
Hearing-specialized brain regions can adapt to processing visual input, cat experiments show.
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LifeThe unusual suspects
With no obvious culprit in sight, geneticists do broader sweeps to identify autism’s causes.
By Susan Gaidos -
Health & MedicinePesticide in womb may promote obesity, study finds
One-quarter of babies born to women who had relatively high concentrations of a DDT-breakdown product in their blood grew unusually fast for at least the first year of life. Not only is this prevalence of accelerated growth unusually high, but it’s also a worrisome trend since such rapid growth during early infancy has — in other studies — put children on track to become obese.
By Janet Raloff