Health & Medicine
- Chemistry
Guards of the blood-brain barrier identified
Specialized cells called pericytes are crucial to protecting the central nervous system, two new studies demonstrate.
- Life
More 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.
- Health & Medicine
Implants 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.
- Health & Medicine
Mice robbed of darkness fatten up
Time of day can affect calories' impact, a study shows.
- Health & Medicine
How being deaf can enhance sight
Hearing-specialized brain regions can adapt to processing visual input, cat experiments show.
- Life
The unusual suspects
With no obvious culprit in sight, geneticists do broader sweeps to identify autism’s causes.
- Health & Medicine
Pesticide 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.
- Health & Medicine
Getting to the bottom of diabetes and kidney disease
Renal cells called podocytes may need insulin to maintain tissues’ blood-filtration role, a study in mice finds.
- Earth
Air pollution appears to foster diabetes
Epidemiological studies confirm previously published animal data.
- Health & Medicine
Medical Nobel goes to developer of IVF
Robert Edwards receives prize for work that led to 4 million births.
- Life
To researchers’ surprise, one Pseudomonas infection is much like the next
Consistent genetic changes in the lung bacteria that commonly plague cystic fibrosis patients are a welcome discovery because they may point to new treatment strategies.
- Health & Medicine
Pernicious influences on dietary choices
Because humanity developed during eons of cyclical feasts and famines, we survived by chowing down on energy-dense foods whenever they became available. Today that's all the time. But a number of recent studies point to additional, less obvious influences on what and how much we choose to eat.
