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Focal disruption of spermatogenesis in the testis of adult rats after a single administration of human chorionic gonadotrophin

Cell and Tissue Research volume 257, pages 163–169 (1989)Cite this article

Summary

The effect of a single injection of 100 i.u. human chorionic gonadotrophin (hCG) upon the morphology of the rat testis was studied by light and electron-microscopy from 12–48 h after treatment. Twelve hours after injection of hCG, emigration of leukocytes occurred across the intertubular blood vessels and, both at this time and at 24 h, infiltrations of leukocytes were observed within the extracellular tissue spaces. Furthermore, 12 h after hCG, the seminiferous epithelium showed focal disruption of spermatogenesis involving germ cell degeneration and pyknosis. Focal damage to the seminiferous epithelium persisted at 24 h and 48 h after injection of hCG, the affected seminiferous tubules showing failure of spermiation, accumulation of extracellular vacuoles and degeneration or partial loss of spermatogonia and primary spermatocytes. The observations show that, after stimulation of the Leydig cells with hCG, the intertubular tissue exhibits an inflammatory-type response and this is associated with focal tissue destruction in the seminiferous tubules. It is concluded that a high dose of hCG exerts anti-spermatogenic effects upon the testis and raises the possibility of unexpected interference with tests of normal Leydig cell function in both laboratory and clinical investigations.

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Affiliations

  1. Department of Anatomy, Monash University, 3168, Clayton, Melbourne, Australia

    J. B. Kerr

  2. MRC Reproductive Biology Unit, Chalmers Street, Edinburgh, Scotland, UK

    R. M. Sharpe

Authors
  1. J. B. Kerr
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  2. R. M. Sharpe
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Kerr, J.B., Sharpe, R.M. Focal disruption of spermatogenesis in the testis of adult rats after a single administration of human chorionic gonadotrophin. Cell Tissue Res. 257, 163–169 (1989). https://doi.org/10.1007/BF00221647

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  • DOI: https://doi.org/10.1007/BF00221647

Key words

  • Testis
  • Human chorionic gonadotrophin
  • Inflammatory response
  • Spermatogenic disruption
  • Rat (Sprague-Dawley)