Antidiuretic responses to osmotic cutaneous stimulation in the toad,Bufo arenarum
- 1 January 1989
- journal article
- research article
- Published by Springer Nature in Journal of Comparative Physiology B
- Vol. 159 (1) , 91-95
- https://doi.org/10.1007/bf00692687
Abstract
Osmotic stimulation of the skin of the toadBufo arenarum with isotonic (115 mM) or hypertonic (400 mM) NaCl solutions produced a marked and reversible antidiuresis within 5 min. No changes in plasma osmolarity were detected in the course of this response. Hypophysectomized animals exhibited a lower and delayed antidiuresis when exposed to a hypertonic environment (400 mM NaCl). This antidiuretic response was drastically reduced in normal toads after ten consecutive days of administration of the sympatoplexic guanethidine. The existence of a feed-forward control of urine production initiated by cutaneous osmotic sensors and involving an adrenergic component is proposed.Keywords
This publication has 22 references indexed in Scilit:
- Antidiuretic responses to osmotic, ionic or volume stimulation of the brain in the unanesthetized toad, Bufo arenarum henselComparative Biochemistry and Physiology Part A: Physiology, 1987
- Short-term changes in natripheric and hydrosmotic water fluxes across the skin and in urine production due to increases in the osmolarity of the external environment in the toadComparative Biochemistry and Physiology Part A: Physiology, 1987
- Electron microscopic study of the innervation of the renal tubules and urinary bladder epithelium in Rana catesbeiana and Necturus maculosusJournal of Morphology, 1984
- Adrenergic control of the anuran cutaneous hydroosmotic responseGeneral and Comparative Endocrinology, 1984
- Thirst and sodium appetiteEndeavour, 1980
- Endocrine adaptation to osmotic requirements of the environment: Endocrine factors in osmoregulation by lungfishes and amphibiansGeneral and Comparative Endocrinology, 1975
- Hormonal content and ultrastructure of the disconnected neural lobe of the grass frog (Rana pipiens)General and Comparative Endocrinology, 1970
- Adaptation de Rana esculenta a des milieux varies. Etude speciale de l'excretion renale de l'eau et des electrolytes au cours des changements de milieuxComparative Biochemistry and Physiology, 1969
- Effect of hyphothalamic lesions on the water-balance response of a toad (Bufo marinus)Comparative Biochemistry and Physiology, 1968
- Influences of the nervous system on the intake and excretion of water by the frogJournal of Cellular and Comparative Physiology, 1934