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- W2080581194 abstract "Summary. The non-specific esterase in the seminiferous tubules of the adult rat testis was shown to be water-soluble and its activity resistant to an organophosphorus (E-600) inhibitor and to p-chloromercuric benzoate. The enzyme exhibited substrate preference for substituted naphthol-AS-type acetates and indoxyl acetates rather than simple naphthol acetate. Histochemically, it behaved as an esterase of the C-type. The localization of the C-esterase activity in the seminiferous epithelium strongly suggests that the Sertoli cells are the site of enzymatic activity. Cyclical changes have been described in the activity of the Sertoli cells during the spermatogenic cycle. Enzymatic activity was highest during the acrosome stages 3 to 5 when the maturing spermatids had their heads deep in the epithelium. Weakest enzymatic activity was recorded at the time of the sperm release. During the pubertal development of the testis a weak C-type esterase activity was seen in the supporting cells of the immature seminiferous tubules. This activity increased as these cells differentiated to mature Sertoli cells. In 20-day rats the adult level of enzyme activity was reached in those tubules where germ cell maturation was most advanced." @default.
- W2080581194 created "2016-06-24" @default.
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- W2080581194 date "1965-08-01" @default.
- W2080581194 modified "2023-10-03" @default.
- W2080581194 title "HISTOCHEMICAL DEMONSTRATION OF A C-ESTERASE ACTIVITY IN THE SEMINIFEROUS TUBULES OF THE RAT TESTIS" @default.
- W2080581194 doi "https://doi.org/10.1530/jrf.0.0100049" @default.
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