reproductive system
N |
• weights of seminal vesicle, testes, and cauda epididymis are similar to controls
• the histology of spermatogonia, spermatocytes, and Sertoli cells is similar to controls
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• seen in a high number of sperm
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• some flagella show various degrees of bending
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• caudal epididymal sperm counts are reduced by 1/3 compared to controls
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• expanded perinuclear space
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• present in about 90% or sperm
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• abnormal sperm heads exhibit a deformed nucleus
• step 12 spermatids display deformed nuclei
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• abnormalities can be seen as early as step 5
• step 12 spermatids display deformed nuclei
• elongating and elongated spermatids appear structurally to be most severely affected
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• the manchette has a symmetrical conical shape, is ectopically located, and is oriented parallel to the longitudinal axis
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• proacrosomal vesicles fail to fuse to form a single large acrosomal vesicle and the acroplaxome is bent at several sites
• the manchette has a symmetrical conical shape, is ectopically located, and is oriented parallel to the longitudinal axis
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• males are sexually active and produce vaginal plugs but over a 2 month mating period only 1 female became pregnant and gave birth to a single pup
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• following crosses to superovulated females only 9.3% of eggs were fertilized compared to 92.4% for wild-type controls
|
cellular
• seen in a high number of sperm
|
• some flagella show various degrees of bending
|
• caudal epididymal sperm counts are reduced by 1/3 compared to controls
|
• expanded perinuclear space
|
• present in about 90% or sperm
|
• abnormal sperm heads exhibit a deformed nucleus
• step 12 spermatids display deformed nuclei
|
• abnormalities can be seen as early as step 5
• step 12 spermatids display deformed nuclei
• elongating and elongated spermatids appear structurally to be most severely affected
|
• the manchette has a symmetrical conical shape, is ectopically located, and is oriented parallel to the longitudinal axis
|