2,457 results
2,457 results for: mutations
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New clue to Down syndrome, leukemia link
One-fifth of people with Down syndrome who also have acute lymphocytic leukemia harbor a mutation in their JAK2 gene.
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Limiting Damage: Fragile X symptoms modulated in mice
Reducing activity of a gene in mice alleviates many of the symptoms of fragile X syndrome, a genetic defect that causes mental retardation in people.
- Health & Medicine
Down syndrome’s anti-tumor effect
The chromosomal abnormality that causes Down syndrome might protect against some solid tumors.
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Seeing Again: Blind fish parents have fry that see
Cross two strains of blind cavefish that have lived in the dark for a million years, and some of their offspring will be able to see.
- Health & Medicine
HIV variant might help vaccine search
Scientists have discovered an unusual HIV protein in a Kenyan woman that makes the virus vulnerable to antibodies.
- Health & Medicine
Warning Sign: Genetic fragments tag cancer severity
High levels of the microRNA miR-21 lead to poor prognoses for colon cancer patients.
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More evidence that flies sleep like people
A brain chemical puts fruit flies to sleep.
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New World Stopover: People may have entered the Americas in stages
People first reached the edge of the Americas about 40,000 years ago but had to stay put for at least 20,000 years before melting ice sheets allowed them to move south and settle the rest of the continent.
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Aging Factor: Gene mutations may be key to long life
Some centenarians carry mutations in a pathway associated with longevity in worms and fruit flies.
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Rare mutations tied to schizophrenia
Individual-specific DNA deletions and duplications, many located in genes involved in brain development, occur in an unusually large percentage of people with schizophrenia.
- Health & Medicine
Take a Breath: Fatty substance may play role in cystic fibrosis
A fatty compound called ceramide that accumulates in lung cells may be instrumental in the devastating disease cystic fibrosis.
