neoplasm
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• 7 of 8 mice develop one or more tumors of the mammary gland after the first pregnancy
• mean latency time for spontaneous mammary tumor development is 19.7 +/- 8.6 weeks
• mammary tumors of both untreated and DMBA-treated mice are heterogeneous, including frequent adenocarcinomas, solid carcinomas, papillary carcinomas, and adenosquamous carcinomas, carcinosarcomas and sarcomas
• 67% of mammary tumors from untreated and DMBA-treated mice are estrogen receptor alpha-positive
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• 40% of females exposed to DMBA for 6 weeks develop mammary tumors, with a mean latency time of 8.5 +/- 4.7 weeks
• females exposed to DMBA also develop lymphomas, ovary, lung, stomach, uterus and skin tumors
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• some mice develop an additional lymphoma
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• some mice develop an additional sarcoma in the abdomen
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• some mice develop an additional tumor of the lung
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mortality/aging
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• premature death, with only 2 of 11 mice surviving past 78 weeks
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endocrine/exocrine glands
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• 7 of 8 mice develop one or more tumors of the mammary gland after the first pregnancy
• mean latency time for spontaneous mammary tumor development is 19.7 +/- 8.6 weeks
• mammary tumors of both untreated and DMBA-treated mice are heterogeneous, including frequent adenocarcinomas, solid carcinomas, papillary carcinomas, and adenosquamous carcinomas, carcinosarcomas and sarcomas
• 67% of mammary tumors from untreated and DMBA-treated mice are estrogen receptor alpha-positive
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homeostasis/metabolism
integument
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• 7 of 8 mice develop one or more tumors of the mammary gland after the first pregnancy
• mean latency time for spontaneous mammary tumor development is 19.7 +/- 8.6 weeks
• mammary tumors of both untreated and DMBA-treated mice are heterogeneous, including frequent adenocarcinomas, solid carcinomas, papillary carcinomas, and adenosquamous carcinomas, carcinosarcomas and sarcomas
• 67% of mammary tumors from untreated and DMBA-treated mice are estrogen receptor alpha-positive
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respiratory system
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• some mice develop an additional tumor of the lung
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