2,462 results
2,462 results for: mutations
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Infectious Evolution: Ancient virus hit apes, not our ancestors, in the genes
A potentially deadly infection wormed its way into the DNA of ancestral chimpanzees and gorillas between 4 million and 3 million years ago, thus altering the evolution of these African apes while keeping clear of human ancestors on that same continent.
- Humans
Letters from the November 13, 2004, issue of Science News
The direct approach “An Exploitable Mutation: Defect might make some lung cancers treatable” (SN: 9/11/04, p. 164: An Exploitable Mutation: Defect might make some lung cancers treatable) 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 […]
- Health & Medicine
Striking a Better Bargain with HIV
Because a drug frequently used to block the transmission of HIV from mother to infant may have negative consequences for the mothers, researchers are looking for inexpensive treatments that will benefit both mother and child.
- Health & Medicine
Blood hints at autism’s source
A new biochemical profile in blood may lead to earlier diagnosis of autism and a better understanding of its genetic causes.
- Math
Manuscripts as Fossils
A new mathematical model estimates how many medieval manuscripts have survived to the present.
- Math
Life on the Scales
A mathematical equation helps explain life processes on all biological scales, from molecules to ecosystems.
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Eat Smart
Your daily diet may have an impact on your brain's resiliency in the face of injury or disease.
- Health & Medicine
Proteins’ Promise: New test could reveal early ovarian cancer
A screening test for ovarian cancer shows promise in preliminary trials.
- Anthropology
Founding Families: New World was settled by small tribe
A new genetic analysis indicates that only about 200 to 300 people crossed the ice age land bridge from Asia to become the founding population of North America.
- Agriculture
Wheat Warning—New Rust Could Spread Like Wildfire
A new, yield-slashing wheat blight has emerged in East Africa and could spread far beyond that part of the world.
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Dying before Their Time
Genetically engineered mice that get prematurely old give hints to the causes of aging.
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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, […]
