Literaturdatenbank
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Vallarino, M., Uva, B. M., & Isola, G. (1985). Effect of hypophysectomy on plasma electrolytes and adrenal mineralocorticoid secretion in the terrestrial chelonian testudo hermanni. Comparative Biochemistry and Physiology A, 81, 283–286.
Added by: Admin (13 Sep 2009 10:11:27 UTC) |
| Resource type: Journal Article BibTeX citation key: Vallarino1985 View all bibliographic details  |
Categories: General Keywords: Physiologie = physiology, Schildkröten = turtles + tortoises, Testudinidae, Testudo, Testudo hermanni Creators: Isola, Uva, Vallarino Collection: Comparative Biochemistry and Physiology A |
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| Abstract |
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Testudinidae Na, K, ACTH, corticosterone and aldosterone plasma levels were studied in Testudo hermanni after hypophysectomy and dexamethasone administration. Hypophysectomy as well as dexamethasone treatment caused a deep decrease in the plasma levels of electrolytes, corticosterone and aldosterone when compared to sham-operated or normal controls. ACTH plasma level was markedly lower in hypophysectomized or dexamethasone-treated tortoises when compared to the controls but never reached undetectable levels. Administration of ACTH significantly increased plasma electrolytes and hormone levels in hypophysectomized and dexamethasone-treated tortoises. The present data seem to indicate that the pituitary plays a significant role on electrolyte homeostasis and on the regulation of plasma mineralocorticoids level in terrestrial chelonians.
Added by: Admin |