2,467 results
2,467 results for: mutations
- Health & Medicine
Rwandan patients show unusual HIV
Blood tests on people in Rwanda who have had HIV infections for years without symptoms of AIDS indicate that the viruses in these patients have rare mutations.
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Gene defect leads to warts and more
Scientists have found the gene for an immunodeficiency syndrome.
- Anthropology
The gene that came to stay
A gene thought by some scientists to foster a bold, novelty-seeking personality, as well as attention-deficit hyperactivity (ADHD), apparently spread substantially in human populations over roughly the past 40,000 years.
- Health & Medicine
Cancer clue: RNA-destroying enzyme may thwart prostate-tumor growth
Scientists have found a mutated gene that predisposes men of some families to prostate cancer.
- Health & Medicine
Cancer drugs may thwart Huntington’s
Drugs developed to fight cancer could also be effective against Huntington's disease and several related neurodegenerative conditions.
- Health & Medicine
Low Radiation Hurts Bystander Cells
New research confirms that alpha particles from decaying radon atoms can damage neighboring cells they don't directly hit and suggests a mechanism for this so-called bystander effect.
- Health & Medicine
Broken Weapon: Mutation disarms HIV-fighting gene
A gene that once produced a small protein able to prevent HIV from infecting cells now lies unusable in the human genome.
- Health & Medicine
Gene Therapy for Sickle-Cell Disease?
By adding a useful gene to offset the effects of a faulty one, scientists have devised a gene therapy that prevents sickle-cell anemia in mice.
- Health & Medicine
Boost in protein repair extends fly lives
In warmer-than-normal conditions, fruit flies that overproduce a protein-repair enzyme live about one-third longer than typical flies.
- Health & Medicine
Genetic Culprit: Mutation increases risk for uterine fibroids
Analysis of DNA from families whose women have been beset by uterine growths reveals a mutation that can predispose women to these so-called fibroids.
- Anthropology
DNA Diaspora: Humanity may share tangled genetic roots
A controversial new genetic analysis concludes that Homo sapiens evolved by expanding out of Africa in multiple waves beginning at least 600,000 years ago and then interbreeding, rather than totally replacing close relatives such as the Neandertals.
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When brains wring colors from words
Brain-scan data indicate that one type of synesthesia, in which people involuntarily see vivid colors while listening to spoken words, is more like a color hallucination than an attempt to imagine colors.
