The Effect of Cryptorchidism on the Quantitative Histology, Histochemistry and Hydrolytic Enzyme Activity of the Rat Testis

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Abstract
Cryptorchidism of the mature rat testis led to degeneration of the seminiferous tubules and changes in enzyme patterns and activities. Spermatogenic stages 1--4, containing pachytene primary spermatocytes in late meiotic prophase, and stage 5, containing recently formed round spermatids, were damaged by 48 h. Within 96 h stages showed a loss of germinal cells into the lumen and this was almost complete by 192 h.