2,458 results
2,458 results for: mutations
- Anthropology
Gene change hints at brain evolution
A genetic mutation found only in humans first appeared around 2.8 million years ago, perhaps setting the stage for brain enlargement in the Homo lineage.
- Health & Medicine
Immune gene linked to prostate cancer
An immune-cell gene plays a role in predisposing men to prostate cancer.
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Long live the Y?
Researchers have identified a means by which the Y chromosome may forestall, or at least delay, the gradual degradation that some biologists argue will ultimately delete it from the human genome.
- Health & Medicine
Gene may keep breast cancer at bay
Scientists have identified a gene that seems to protect against some common breast cancers.
- Health & Medicine
Leukemia overpowers drug in two ways
Researchers discover why the anticancer drug Gleevec, also called STI-571, helps many patients who have chronic myelogenous leukemia but not those who have entered the crisis stage of the disease.
- Health & Medicine
Have a heart: Turn on just a single gene
One gene appears to act as the master switch in embryonic heart formation.
- Health & Medicine
Radiation harms blood vessels before gut
The side-effects of radiation therapy may result from initial damage to blood vessels.
- Health & Medicine
Herpes virus homes in on cancer target
Herpes simplex virus 1 has an affinity for cells with a mutation that marks many tumors, indicating how the virus may be refined as a cancer therapy and that certain new drugs might attack herpes itself.
- Health & Medicine
Gene implicated in deadly influenza
A strain of influenza virus that struck in Hong Kong in 1997 got some of its lethality from a mutation in the gene encoding an enzyme called PB2.
- Health & Medicine
Blood vessels (sans blood) shape organs
Even before they begin to carry blood, blood vessels provide signals that help spark the development of organs such as the liver.
- Health & Medicine
Acacia-tree extract fights cancer in mice
Compounds called avicins extracted from Acacia victoriae, an Australian desert tree, inhibit inflammation and cancer in test-tube and mouse studies.
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Gene change speaks to language malady
Researchers have identified a genetic mutation that may lie at the root of a severe speech and language disorder observed across four generations of a British family.
