2,470 results
2,470 results for: mutations
- Health & Medicine
Ominous drug-resistance hints appear
The first signs of partial resistance to an important class of drugs called quinolones have appeared in Haemophilus influenzae, a bacterium that can cause pneumonia and meningitis.
- 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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Ancient Gene Takes Grooming in Hand
A gene involved in body development also plays a critical role in regulating the grooming behavior of mice, a discovery that may advance the understanding of certain psychiatric disorders.
- 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.
- Chemistry
Viral parts: Chemists convert virus into nanoscale tool
Researchers are decorating viruses with a variety of molecules, making the microbes into potential building blocks in electronic circuits and new materials, as well as tools in biomedical therapies.
- Health & Medicine
DREAMing away pain
Mutant mice lacking a certain regulatory protein overproduce a natural opioid and are less sensitive to pain than are other mice.
- Health & Medicine
Suspicious DNA: Chromosome study homes in on Alzheimer’s disease
Several human chromosomes now face intensified scrutiny for possibly harboring genes involved in Alzheimer's disease.
- Ecosystems
Cryptic Invasion: Native reeds harbor aggressive alien
A mild-mannered reed native to the United States is getting blamed for the mayhem caused by an evil twin.
- 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
Protein Repair: New compounds may help cells fight off cancer
Researchers have identified a compound that enables even defective p53 proteins to initiate anticancer chain reactions.
- 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.
