The main objective of the current study was to explore the different activation mechanisms of capacitation and freeze-thawed spermatozoa. Using SDS-PAGE and Western blotting, the conversion process of boar proacrosin during freeze-thawing and capacitation of spermatozoa was analyzed. The results revealed that capacitated spermatozoa exhibited a greater fluorescence area than that of the freeze-thawed spermatozoa, which were smaller than those of the fresh group. Fresh spermatozoa displayed 45- and 35-kDa protein bands, while those of freeze-thawed andcapacitated spermatozoa displayed 45-, 35- and 28-kDa bands. In summary, these data indicate that proacrosin is activated, thus becoming alpha-and beta-acrosins and a 28-kDa protein during capacitation and freeze-thawing.
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Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, MexicoUniv Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, Mexico
Gutierrez, O.
Trujillo, M. E.
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Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, MexicoUniv Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, Mexico
Trujillo, M. E.
Valencia, J.
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Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, MexicoUniv Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, Mexico
Valencia, J.
Juarez, M. L.
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Univ Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, MexicoUniv Nacl Autonoma Mexico, Fac Med Vet & Zootecn, Mexico City 04510, DF, Mexico