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XXIV.—On the Effects of Vasectomy and of Epididymo-deferentectomy in the Mouse

  • Y. Tamura (a1) and F. A. E. Crew (a1)


1. Degeneration of the germinal epithelium of the testis invariably follows the operation of vasoligation or of vasectomy in the mouse, but does not become evident until a considerable period of time has elapsed.

2. Similar degeneration follows the operation of epididymo-deferentectomy, but after a much shorter interval of time.

3. This degeneration is caused perhaps by the pressure within the seminiferous tubules exerted by the accumulation of seminal products, or more probably by the action of toxic substances liberated from the disintegrating cell and sperm debris.



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Moore, C. R. (1924), “Properties of the Gonads as Controllers of Somatic and Psychical Characteristics. VI. Testicular Reactions in Experimental Cryptorchidism,” Amer. Journ. Nat., 34, 269316.
Moore, C. R. (1926), “Biology of Mammalian Testis and Scrotum,” Quart. Rev. Biol., 1, 150.
Moore, C. R., and Quick, W. J. (1924), “Properties of the Gonads as Controllers of Somatic and Psychical Characteristics. VII. Vasectomy in the Rabbit,” Amer. Journ. Anat., 34, 317336.
Moore, C. R., and Oslund, R. (1924), “Experiments on the Sheep Testis: Cryptorchism, Vasectomy, and Scrotal Insulation,” Amer. Journ. Physiol., 67, 595607.
Oslund, R. (1924), “A Study of Vasectomy on Rats and Guinea-pigs,” Amer. Journ. Physiol., 67, 422443.
Wagenen, van, C. T. (1924), “Degeneration of the Germinal Epithelium in the Testis of the Rat as a Result of Efferent Duct Ligation,” Anat. Rec., 27, 189.
Wagenen, van, C. T. (1925), “Changes in the Testis of the Rat following Ligation of the Ductuli efferenti,” Anat. Rec., 29, 399.


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