mortality/aging
• double mutants tend to live longer than single heterozygous Pten mice
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endocrine/exocrine glands
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• prostates exhibit signs of hyperplasia but lesions are less severe than in single heterozygous Pten mice
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reproductive system
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• prostates exhibit signs of hyperplasia but lesions are less severe than in single heterozygous Pten mice
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neoplasm
• mutants are protected from prostate cancer development: only 1 of 10 double mutants developed a tumor compared to 5 of 9 single heterozygous Pten mice
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