Summary
The fine structure of granulosa cells of the domestic fowl as seen after administration of steroids is described. Diaethylstilboestrol, estradiol and hydroxy-progesterone were given as intramuscular injections for a 28-days period. The main cytoplasmic changes of the granulosa cells were an increase in the number of mitochondria and dense bodies. The Golgi apparatus became enlarged, and occupied a large portion of the cell. The nucleus was found located adjacent to the oocyte, and there was an increase in number of the annular desmosomes. The investigation has demonstrated that even if steroids in high dosages induce atrophic alterations of the ovary, they stimulated proliferation of the granulosa cells of the small follicles. Apparently the small follicles with the granulosa cells retain the ability to regain development, which may be to some importance when steroids are used therapeutically (gynecologic disorders, contra-ception).
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Dahl, E. The effects of steroids on the granulosa cells in the domestic fowl. Z. Zellforsch. 119, 179–187 (1971). https://doi.org/10.1007/BF00324519
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DOI: https://doi.org/10.1007/BF00324519