2,464 results
2,464 results for: mutations
- Life
Why starved flies need less sleep
Low lipid levels keep the insects buzzing past bedtime, a new study finds, suggesting a role for metabolism in regulating sleep.
- Health & Medicine
Ovary removal proves beneficial for cancer-prone women
BRCA mutation carriers who opt for surgery survive longer than those who forgo the operation, a new study shows.
- Life
Hints of altruism among bacteria
E. coli bacteria fight antibiotics with help from drug-resistant neighbors.
- Health & Medicine
Mutated gene cited in some ovarian cancers
The finding may help researchers devise a way to screen women with endometriosis for cancer risk.
- Health & Medicine
DNA-damaging disinfection by-products found in pool water
A study detects subtle changes in swimmers’ cells after 40 minutes of laps.
- Life
Pressure keeps cancer in check
In lab experiments, physically confining malignant cells prevents runaway growth.
- Health & Medicine
Updated Pap smear detects ovarian, uterine cancers
Adding a genetic analysis to the procedure reveals mutations specific to the two malignancies.
- Humans
H5N1 influenza research moratorium ends
Scientists lift self-imposed moratorium on research that would make avian flu transmissible among humans.
- Life
Pigeons’ prominent plumage traces to one gene
A mutation responsible for ruffs, crests and collars appears to have arisen once and then passed among species through breeding.
- Life
Ancestors of today’s placental mammals may never have shared the Earth with dinosaurs
A newly constructed family tree dovetails with the fossil record, but differs considerably from previous genetic studies by suggesting that placental mammals emerged after the dinosaur extinction.
- Health & Medicine
Baby may be cured of HIV
Only viral traces remain after prompt treatment of newborn, suggesting no working virus is left in the girl’s body.
- Life
Alga borrows genes to beat the heat, acid and toxic metals
Such genetic theft from bacteria and archaea is unusual among eukaryotes.
