2,444 results
2,444 results for: mutations
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DNA Clues to Our Kind: Regulatory gene linked to human evolution
A gene that exerts wide-ranging effects on the brain works harder in people than it does in chimpanzees and other nonhuman primates.
- Health & Medicine
Tumor’s border cells told to leave
Cells on a tumor's outer layer that touch healthy tissue receive a chemical signal that sends them wandering away.
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Cell death may spur aging
Genetic mutations in cells' internal powerhouses could contribute to aging by stifling tissue maintenance.
- Humans
Letters from the May 6, 2006, issue of Science News
Same old grind “Ancient Andean Maize Makers: Finds push back farming, trade in highland Peru” (SN: 3/4/06, p. 132) remarks on maize starch granules being “consistent with” stone grinding. The presence of lowland arrowroot on one tool is consistent with trade, but it is equally consistent with a wandering hunter grabbing a root in the […]
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Bringing Up Baby’s DNA
Researchers are developing ways to harvest babies' genes in less invasive ways.
- Health & Medicine
Now Hear This
Genetics research, work with stem cells, and studies of the inner ear's delicate architecture suggest that it might be possible to restore cells pivotal to hearing.
- Health & Medicine
A Vexing Enigma
While no drug or lab test is approved to treat or diagnose chronic fatigue syndrome, new research into the biology of the disorder may begin to shed light on the problem.
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Flu from horses is racing among dogs
A highly contagious influenza virus that has killed greyhounds and sickened other dogs may have first jumped to canines from a single infected horse.
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Robo Receptor: Researchers engineer a brain ion channel to take its cues from light
Scientists have engineered an ion channel in nerve cells to open or close in response to light.
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Novel drug may take on lung cancer
A drug that bottles up the so-called epidermal growth factor receptor might fight lung cancer.
- Health & Medicine
Falling Influence: Influenza fighters have limited effects
The most readily available drugs against influenza have abruptly declined in effectiveness in the past decade.
- Animals
Poor Devils: Critters’ fights transmit cancer
Tasmanian devils transmit cancer cells when they bite each other during routine squabbles, producing lesions that are often fatal.
