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  1. Health & Medicine

    Genes for macular degeneration

    Variations in two genes could account for three-quarters of all cases of age-related macular degeneration.

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  2. Health & Medicine

    Low-protein diet boosts treatment

    A diet low in protein can improve the effectiveness of drug therapy and reduce the periods of the most debilitating symptoms suffered by Parkinson's disease patients.

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  3. Chemistry

    Fragment foils Alzheimer’s protein

    Researchers have synthesized a protein fragment that, in test tubes, disrupts the formation of the fiber networks suspected to cause Alzheimer's disease.

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  4. Thymus twice as nice for mice

    Mice have a second thymus, located in the neck.