Search Results for: mutations

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2,458 results

2,458 results for: mutations

  1. 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.

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  2. 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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  3. 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.

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  4. Health & Medicine

    Gene may keep breast cancer at bay

    Scientists have identified a gene that seems to protect against some common breast cancers.

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  5. 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.

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  6. Health & Medicine

    Have a heart: Turn on just a single gene

    One gene appears to act as the master switch in embryonic heart formation.

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  7. Health & Medicine

    Radiation harms blood vessels before gut

    The side-effects of radiation therapy may result from initial damage to blood vessels.

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  8. 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.

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  9. 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.

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  10. 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.

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  11. 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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  12. 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.

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