reproductive system
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• females are fertile
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• 4-fold increase in the number of apoptotic cells in the seminiferous tubules at 6 weeks of age
• apoptotic cells are clustered and primarily localized in germ cell layers that contain primary spermatocytes
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• spermatozoa appear almost immotile, with a few displaying sluggish progressive or nonprogressive motility
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• marked but variable reduction in testis weight
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• defect in the elongation and nuclear condensation stage of spermiogenesis with the shedding of immature germ cells
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• epididymal sperm counts are less than 10% of the numbers found in control mice
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• more than 90% of spermatozoa are morphologically abnormal
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• deformation of the sperm midpiece
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• at least 70% of spermatozoa exhibit an aberrant head morphology, in most cases combined with middle piece deformation
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• increased apoptosis of primary spermatocytes
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endocrine/exocrine glands
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• marked but variable reduction in testis weight
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cellular
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• epididymal sperm counts are less than 10% of the numbers found in control mice
|
|
• more than 90% of spermatozoa are morphologically abnormal
|
|
• deformation of the sperm midpiece
|
|
• at least 70% of spermatozoa exhibit an aberrant head morphology, in most cases combined with middle piece deformation
|
|
• increased apoptosis of primary spermatocytes
|
|
• 4-fold increase in the number of apoptotic cells in the seminiferous tubules at 6 weeks of age
• apoptotic cells are clustered and primarily localized in germ cell layers that contain primary spermatocytes
|
|
• spermatozoa appear almost immotile, with a few displaying sluggish progressive or nonprogressive motility
|