reproductive system
• sperm count is dramatically decreased
|
• most sperm are malformed
|
• immunofluorescence of the sperm flagella marker AQP3 (aquaporin 3) showed only a punctate AQP3 signal in testes
• most sperm show short, coiled or helical flagella
|
• percentage of multiple sperm axonemal structural defects is significantly increased
|
• percentage of abnormal sperm mitochondria significantly increased
|
• SEM revealed sperm with a coiled fibrous sheath
|
• percentage of abnormal sperm heads is significantly increased
|
• PNA-positive acrosomes appear abnormal
|
• elongating spermatids exhibit abnormally elongated manchettes at steps 11-12
|
• percentage of motile spermatozoa is dramatically reduced
|
small testis
(
J:345163
)
• adult testis size is significantly reduced
|
• adult testis/body weight ratio is significantly reduced
• however, adult body weight is normal
|
• only a small number of mature spermatozoa are noted in the epididymis
• however, no obvious histological changes are detected in the seminiferous tubules and early stage of germ cell development is normal
|
• males are completely sterile
• however, no obvious developmental defects are observed in adult mice
|
cellular
N |
• tracheal epithelial cells show a normal number of ciliated cells and normal cilial morphology
• mouse embryonic fibroblasts (MEFs) show normal serum starvation-induced ciliogenesis with normal primary cilia number and cilial length
|
• sperm count is dramatically decreased
|
• most sperm are malformed
|
• immunofluorescence of the sperm flagella marker AQP3 (aquaporin 3) showed only a punctate AQP3 signal in testes
• most sperm show short, coiled or helical flagella
|
• percentage of multiple sperm axonemal structural defects is significantly increased
|
• percentage of abnormal sperm mitochondria significantly increased
|
• SEM revealed sperm with a coiled fibrous sheath
|
• percentage of abnormal sperm heads is significantly increased
|
• PNA-positive acrosomes appear abnormal
|
• elongating spermatids exhibit abnormally elongated manchettes at steps 11-12
|
• percentage of motile spermatozoa is dramatically reduced
|
endocrine/exocrine glands
small testis
(
J:345163
)
• adult testis size is significantly reduced
|
• adult testis/body weight ratio is significantly reduced
• however, adult body weight is normal
|