2,460 results
2,460 results for: mutations
- Life
MRSA bacterial strain mutates quickly as it spreads
Antibiotic-resistant microbe's detailed family tree reveals roots of the global infection.
- Life
Hints of altruism among bacteria
E. coli bacteria fight antibiotics with help from drug-resistant neighbors.
- 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.
- 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.
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- Life
Pneumonia drugs helped evolve a superbug
As told through DNA from historical samples, a deadly bacterium reveals how it developed the ability to evade antibiotics and a vaccine.
- Life
BATTLE trial personalizes lung cancer treatment
A new study makes a first step toward personalized chemotherapy.
- Health & Medicine
Mice with mutation feel the burn
Instead of becoming obese, mice with a mutation in an immune gene burn off the fat they eat.
- Health & Medicine
A protein’s ebb and flow
Buildup in the brain of a protein linked to Alzheimer's disease may be due to reduced clearance rather than overproduction of the protein.
- Life
Mice missing protein burn more fat
Research on the receptor for the 'hunger hormone' suggests a molecular strategy for revving up the body’s furnace.
- Health & Medicine
Healthy Aging in a Pill
To extend life span, scientists envision a drug that mimics the benefits of a near-starvation diet.
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Letters
The liver’s carbon fixation The possibility that insects can harness solar energy (SN: 1/15/11, p. 8) is no less fascinating than the ability of the mammalian liver to do the light-independent part of photosynthesis: carbon fixation. When concentrations of the amino acid methionine rise after a high-protein meal, the liver shifts gears to get rid […]
