2,470 results
2,470 results for: mutations
- Animals
Retaking Flight: Some insects that didn’t use it didn’t lose it
Stick insects may have done what biologists once thought was impossible: lose something as complicated as a wing in the course of evolution but recover it millions of years later.
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Catch of the day for cancer researchers
Scientists are using glowing tumor cells inside zebrafish to study how cancer spreads.
- Health & Medicine
Huntington’s Advance: Drug limits disease effects in laboratory mice
A compound that inhibits enzymes that act as stop signs for genes counteracts the movement disorders brought on by Huntington's disease, a mouse study suggests.
- Health & Medicine
HIV in breast milk can be drug resistant
HIV-positive women who receive the drug nevirapine during pregnancy often have HIV that is resistant to the drug in their breast milk after they give birth.
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Feline Finding: Mutations produce black house cats, jaguars
Mutations in two different genes, which lead to black fur in house cats, jaguars, and jaguarundis, may have protected the black felines from an epidemic long ago.
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Genetically Driven: Mutation shows up in binge eaters
Overweight binge eaters are more likely to harbor a genetic mutation that disrupts brain signals governing satiety than are people of normal weight.
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Autism Advance: Mutated genes disrupt nerve cell proteins
Two gene mutations that cause autism suggest that nerve cell connections called synapses are key to the disorder.
- Anthropology
Cannibalism’s DNA Trail: Gene may signal ancient prion-disease outbreaks
Cannibalism among prehistoric humans may have left lasting genetic marks.
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Genetic Clue to Aging? Mutation causes early-aging syndrome
A gene defect that causes accelerated aging may provide insight into normal aging.
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Out of China: SARS virus’ genome hints at independent evolution
The newly identified SARS virus is the product of a long and private evolutionary history, clues from its genome suggest.
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19458
This article may have missed a “magic bullet” that would be effective against many forms of cancer. The researchers concentrate on a drug that blocks a mutated form of the epidermal growth factor (EGF) receptor, which may benefit 5 percent of lung cancer patients. Yet the article states that “if normal cell growth runs amok, […]
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19535
I usually tend to downplay worries about research in genetics, but I was quite concerned after reading this article. The researchers surely have plans to keep whatever they create contained. But adding a fifth base to the DNA of bacteria with a genetic mutation rate 10,000 times that of normal bacteria seems unnecessarily dangerous. I […]
