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Your search keyword '"D'Istria, M"' showing total 2 results
Start Over Author "D'Istria, M" Journal cell and tissue research
2 results on '"D'Istria, M"'

2. The effects of gonadectomy and testosterone treatment on the Harderian gland of the green frog, Rana esculenta

Author

L. Di Matteo, Bruno Varriale, Michela d'Istria, Sergio Minucci, G. Chieffi-Baccari, Ismene Serino, Chieffi, Gabriella, DI MATTEO, Loredana, D’Istria, M., Minucci, Sergio, Serino, Ismene, and Varriale, Bruno

Subjects
Male, medicine.medical_specialty, animal structures, Histology, medicine.drug_class, Ovariectomy, Biology, Pathology and Forensic Medicine, Rana, Harderian gland, chemistry.chemical_compound, Salientia, Internal medicine, Testis, medicine, Animals, Testosterone, Castration, Harderian Gland, Endoplasmic reticulum, Ovary, Rana esculenta, Cell Biology, biology.organism_classification, Androgen, Androgen receptor, Microscopy, Electron, Endocrinology, chemistry, Ultrastructure, Rana esculenta (Anura), Female, Seasons, Orchiectomy
Abstract

The effects of gonadectomy and testosterone treatment on the fine structure of the Harderian gland in male and female green frogs were investigated in different periods of the year. Gonadectomy, carried out when the glands are in the lowest secretory phase (September), causes degenerative changes consisting of a reduction of the rough endoplasmic reticulum, the appearance of autolysosomes, and an increase of nuclear heterochromatin. These effects can be prevented by testosterone treatment. No castration effects are found during the recovery (November) and enhancement (April-May) phases of secretory activity. The results suggest that the frog Harderian gland's sensitivity to testosterone changes during the annual cycle. The androgen dependence of the Harderian gland is correlated with the presence of androgen receptors in both male and female forgs. © 1993 Springer-Verlag.

Published
1993

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