reproductive system
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• Sertoli cell numbers in 3-months old testis as determined by vimentin staining
• numbers of undifferentiated spermatogonia in 3-months old testis as determined by Zbtb16 (PLZF) staining
• mating behavior between mutant males and wild-type females as determined by percentage plugged females
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• no normal spermatozoa in cauda epididymis
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• 93 +/- 5% reduction in sperm count in epididymis of 3-months old males compared to wild-type
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• no normal spermatozoa in cauda epididymis
• immature spermatocytes in epididymis
|
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• 6-fold increase in number of apoptotic cells in 3-months old testis according to cleaved-Parp1 staining
• no normal spermatozoa, but instead immature spermatocytes, in epididymis
|
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• percentage of proliferating cells as determined by Pcna staining
• 58 +/- 8% reduction in differentiating spermatogonia and primary spermatocytes as determined by Kit staining
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• diameter reduced by 27 +/- 5%
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small testis
(
J:250112
)
|
• reduction in testis weight of 59 +/- 16% compared to single homozygous Ptp4a2 knockout (which testes are 43 +/- 8% smaller compared to wild-type)
|
|
• reduction in testis weight of 59 +/- 16% compared to single homozygous Ptp4a2 knockout (which testes are 43 +/- 8% smaller compared to wild-type)
• reduction in testis/body weight ratio (normalized body weight) of 69 +/- 16% compared to wild-type
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• no pups born after mating mutant males with wild-type females
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cellular
|
• no normal spermatozoa in cauda epididymis
|
|
• 93 +/- 5% reduction in sperm count in epididymis of 3-months old males compared to wild-type
|
|
• no normal spermatozoa in cauda epididymis
• immature spermatocytes in epididymis
|
|
• 6-fold increase in number of apoptotic cells in 3-months old testis according to cleaved-Parp1 staining
• no normal spermatozoa, but instead immature spermatocytes, in epididymis
|
endocrine/exocrine glands
|
• percentage of proliferating cells as determined by Pcna staining
• 58 +/- 8% reduction in differentiating spermatogonia and primary spermatocytes as determined by Kit staining
|
|
• diameter reduced by 27 +/- 5%
|
small testis
(
J:250112
)
|
• reduction in testis weight of 59 +/- 16% compared to single homozygous Ptp4a2 knockout (which testes are 43 +/- 8% smaller compared to wild-type)
|
|
• reduction in testis weight of 59 +/- 16% compared to single homozygous Ptp4a2 knockout (which testes are 43 +/- 8% smaller compared to wild-type)
• reduction in testis/body weight ratio (normalized body weight) of 69 +/- 16% compared to wild-type
|
mortality/aging
• mice at weaning stage found at a significantly lower rate (27/352) than expected Mendelian ratio (44/352) from double heterozygous mutant intercross
|
growth/size/body
• reduction in in 4-week old male body weight of 41+/- 10% compared to wild-type, and 27 +/- 12% compared to single homozygous Ptp4a2 knockout
• reduction in in 4-week old female body weight of 26 +/- 14% compared to wild-type
|