Humans
We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
High elevation linked to hormone dearth
Elderly Peruvian women living at very high altitudes have lower blood concentrations of some key hormones than do their lowland counterparts.
- Health & Medicine
On Wheat and Weaning
Prolonged breastfeeding appears to offer some babies major intestinal benefits, a new Swedish study finds. The practice prevented or at least delayed the onset of celiac disease in children. This intestinal disorder tends to run in families, especially those with a northern-European background. In the United States, roughly one in every 250 Americans develops the […]
- Health & Medicine
Freeing up the mouse genome
Scientists have assembled the DNA sequences from a strain of the common lab mouse and made the draft genome available for free over the Internet.
- Anthropology
Searching for the Tree of Babel
Researchers are using new methods of comparing languages to reveal information about the ancestry of different cultural groups and answer questions about human history.
- Archaeology
Openings to the Underworld
Archaeological finds indicate that ancient groups in Mexico and Central America, including the Maya, held beliefs about a sacred landscape that focused on natural and human-made caves as sites of important ritual activities and burials.
- Health & Medicine
D-fending the Colon: Bile component triggers vitamin D receptor
The protein that enables cells to respond to vitamin D also helps the gastrointestinal tract protect itself from an especially dangerous acid in bile.
- Health & Medicine
Wholesome Grains: Insulin effects may explain healthful diet
Overweight people who eat whole grains rather than refined ones appear better equipped to manage their blood-sugar concentrations with minimal production of the hormone insulin, which could help explain why a diet rich in whole grains appears to guard against type II diabetes and heart disease.
- Health & Medicine
Amyloid Buster? New drug hinders Alzheimer’s protein
By disabling a dementia-linked protein, a synthetic drug is showing a tantalizing capacity to interfere with the formation of waxy amyloid deposits like those that accumulate in the brains of people with Alzheimer's disease.
- Health & Medicine
A Model Mouse
Mice with symptoms similar to rheumatoid arthritis may illuminate the puzzling disorder.
- Health & Medicine
Liquid could aid vaccine storage and use
A new medium for vaccines could remove the need to either refrigerate or rehydrate vaccines, hurdles that impede immunization campaigns in poor countries.
- Health & Medicine
Beating two infections with one vaccine
Identifying key similarities between related viruses could enable researchers to coax some vaccines to do double duty.
- Health & Medicine
Spice component versus cancer cells
Curcumin, a compound in the spice turmeric, teams up with an immune-system protein to kill prostate cancer cells in a new laboratory study.
