Electron microscopic cytochemistry of adenylate cyclase in the ovarian compartments of ground squirrel during the annual cycle
| Autor: | Assen I. Hadjioloff, Rumiana Tzarvulkova-Denkova, Anna Boyadjievamichailova, Ludmilla Staneva |
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| Rok vydání: | 1982 |
| Předmět: |
Hibernation
endocrine system medicine.medical_specialty Histology medicine.drug_class Ovary Cyclase Internal medicine medicine Animals Sexual Maturation Ground squirrel Granulosa Cells biology Cell Membrane Theca interna Sciuridae Cell Biology General Medicine biology.organism_classification Microscopy Electron Endocrinology medicine.anatomical_structure Theca Cells Cytochemistry Female sense organs Gonadotropin Arousal hormones hormone substitutes and hormone antagonists Hormone Adenylyl Cyclases |
| Zdroj: | Acta histochemica. 70(1) |
| ISSN: | 0065-1281 |
| Popis: | Summary The ultrastructural localization and the activity changes of adenylate cyclase (AC) were studied in the ovarian, compartments of sexually mature ground squirrels (Citellus citellus L.), during the both stages of hibernation (October to December and January to February), after awaking (March) and after gonadotropin (PMSG and HCG) intraperitoneal application during the both above mentioned stages. AC activity was found to be localized on the plasma membranes of theca interna, interstitial, and granulosa cells in, ground squirrel ovary. The cytochemical observations presented demonstrate significant AC activity changes in ground squirrel ovary during hibernation, after awaking and after gonadotropin treatment and lend support to the concept of AC-cAMP system participation in the gonadotropin hormone action on the ovary. |
| Databáze: | OpenAIRE |
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