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- W2278465863 abstract "The cytochemical localization and intensity of adenosine triphosphatase (ATPase) activity in the spermatozoa from fertile and infertile human ejaculate were observed by an electron microscope. Sperm from fertile and infertile human ejaculate were fixed in 1% glutaraldehyde and treated histochemically to demonstrate calcium- and magnesium-dependent ATPase (Ca++- and Mg++-dependent). Furthermore, as substrates, ADP, AMP, and beta-glycerophosphate were used. The localization of Ca++-activated ATPase was not different from that of Mg++-activated ATPase. In the fertile human ejaculated sperm, ATPase activity was found on the surface of the acrosome and mitochondria consisting of the mitochondrial sheath, around the outer coarse fibers and in the axial filament complex. Compared with the result with fertile specimens, in the infertile human ejaculated sperm, ATPase activity on the motile structures, the outer coarse fibers, and the axial filament complex were considerably weaker and occasionally not recognized. From this study, it may be considered that ATPase around the outer coarse fibers and in the axial filament complex of sperm may serve to mediate contraction of the axonemal elements during motility. (Author's Modified)" @default.
- W2278465863 created "2016-06-24" @default.
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- W2278465863 date "1976-01-01" @default.
- W2278465863 modified "2023-10-18" @default.
- W2278465863 title "THE CYTOCHEMICAL LOCALIZATION OF ATPase ACTIVITY IN THE SPERMATOZOA FROM FERTILE AND INFERTILE HUMAN EJACULATE BY ELECTRON MICROSCOPE" @default.
- W2278465863 doi "https://doi.org/10.5980/jpnjurol1928.67.6_402" @default.
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