1972
DOI: 10.1530/jrf.0.0300417
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Development of the Fertilizing Ability of Spermatozoa in the Epididymis of the Syrian Hamster

Abstract: Summary. Hamster epididymal spermatozoa do not normally acquire the ability to penetrate eggs until they reach the proximal portion of the cauda epididymidis. Careful ligation of the lower corpus epididymidis for 3 to 5 days produced some improvement in the motility but a failure of the fertilizing ability of spermatozoa withheld proximal to the ligature. These findings are compared briefly with those in the rabbit, in the light of the character of the epithelium in the different macroscopic regions of the epi… Show more

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Cited by 95 publications
(55 citation statements)
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“…It is therefore probable that the cultured epithelial cells modified the small drop of culture medium to induce changes in the flagellum of spermatozoa. A similar development in motility has been described for hamster spermatozoa during passage along the proximal epididymis in vivo (Horan & Bedford, 1972) and a glycoprotein (forward motility protein) secreted by principal cells has been implicated in promoting motility maturation changes in a number of mammals (see Hoskins et al, 1979). Induction of the motility of hamster spermatozoa from the caput epididymidis has been achieved by using cauda epididymal fluid and charcoal-extracted albumin (Cornwall et al, 1985).…”
Section: Discussionmentioning
confidence: 60%
“…It is therefore probable that the cultured epithelial cells modified the small drop of culture medium to induce changes in the flagellum of spermatozoa. A similar development in motility has been described for hamster spermatozoa during passage along the proximal epididymis in vivo (Horan & Bedford, 1972) and a glycoprotein (forward motility protein) secreted by principal cells has been implicated in promoting motility maturation changes in a number of mammals (see Hoskins et al, 1979). Induction of the motility of hamster spermatozoa from the caput epididymidis has been achieved by using cauda epididymal fluid and charcoal-extracted albumin (Cornwall et al, 1985).…”
Section: Discussionmentioning
confidence: 60%
“…Estes segmentos proximais precedem o delgado corpo epididimário 8 . Comparativamente ao hamster em que se verifica a habilitação de fertilização dos espermatozóides na cauda epididimária proximal 22,23,24 , a reatividade da FoAl na cauda epididimária do hamster foi notada de forma intensa, sendo confirmada com recente investigação bioquímica de atividade da FoAl, intensa na região da cauda epididimária daquele roedor 20 .…”
Section: Discussionunclassified
“…Horan & Bedford, 1972) and the spermatozoa-zona pellucida binding assay were as described previously (Cuasnicú et al, 1984).…”
Section: Introductionmentioning
confidence: 99%