Role of the CNS in the control of the water economy of the toad Bufo arenarum Hensel - II. Adrenergic control of water uptake across the skin

1. Subcutaneous administration of a sympathoplexic drug, guanethidine, induced intensive uptake of water across the skin of the toad, Bufo arenarum, maintained in fresh water, even after complete removal of the ADH producing system. Guanethidine had no effect in the midbrain lesioned toad. No signif...

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Autor principal: Segura, E.T
Otros Autores: Bandsholm, U.C, Bronstein, A.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: Springer-Verlag 1982
Acceso en línea:Registro en Scopus
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100 1 |a Segura, E.T. 
245 1 0 |a Role of the CNS in the control of the water economy of the toad Bufo arenarum Hensel - II. Adrenergic control of water uptake across the skin 
260 |b Springer-Verlag  |c 1982 
270 1 0 |m Segura, E.T.; Laboratorio de Fisiología del Comportamiento, Instituto de Biologia y Medicina Experimental, Obligado 2490, Buenos Aires, 1428, Argentina 
506 |2 openaire  |e Política editorial 
504 |a Adolph, E.F., The water exchange of frogs with and without skin (1931) Am J Physiol, 96, pp. 569-596 
504 |a Adolph, E.F., Influences of the nervous system on the intake and excretion of water by the frog (1934) Journal of Cellular and Comparative Physiology, 5, pp. 123-139 
504 |a Bakker, H.R., Bradswhaw, S.D., Effect of hypothalamic lesions on water metabolism of the toad Bufo marinus (1977) J Endocrinol, 75, pp. 161-172 
504 |a Coviello, A., Natriferic and hydrosomotic effect of angiotensin II in the toad Bufo paracnemis (1970) Acta Physiol Lat Am, 20, pp. 349-358 
504 |a Dupont, W., Leboulenger, F., Vaudry, H., Vaillant, R., Regulation of the aldosterone secretion in the frog, Rana esculenta L (1976) Gen Comp Endocrinol, 29, pp. 51-60 
504 |a Parent, A., Distribution of monoamine containing neurons in the brain stem of the frog, Rana temporaria (1973) J Morphol, 139, pp. 67-71 
504 |a Pavel, G., Goldstein, R., Calb, M., Vasotocin content in the pineal gland of foetal, newborn and adult male rats (1975) Endocrinol, 66, pp. 283-284 
504 |a Salée, M-L, Vidrequin-Deliège, M., Nervous control of the permeability characteristics of the isolated skin of the toad Bufo bufo L (1967) Comp Biochem Physiol, 23, pp. 583-597 
504 |a Schoffeniels, E., Salée, M-L, The effects of the electrical stimulation of the brachial plexus of the potential difference of frog skin (1965) Comp Biochem Physiol, 14, pp. 587-602 
504 |a Segura, E.T., Kacelnik, A., Cardiorespiratory and electroencephalographic responses to the stimulation of the mesencephalic tegmentum in toads, lizards and rats (1977) Exp Neurol, 57, pp. 364-373 
504 |a Segura ET, Bandsholm UC, Bronstein A (1980) Neural control of water intake across the skin of toad. VIIth International Conference on the Physiology of Food and Fluid Intake, ‘IUPS’, Warsaw, July 7–10, 1980. Volume of Abstracts, p 101; Segura, E.T., Bandsholm, U.C., Bronstein, A., Woscoboinik, D., Role of the CNS in the control of the water economy of the toad Bufo arenarum Hensel. I. Effects of handling, brain lesions, anesthesia and reversible coma upon water uptake, urine production and overall water balance (1982) J Comp Physiol, 146, pp. 95-100 
504 |a Shoemaker, V.H., Waring, H., Effect of hypothalamic lesions on the water-balance response of a toad, Bufo marinus (1968) Comp Biochem Physiol, 24, pp. 47-54 
504 |a Vivien-Roels, B., Guerne, J.M., Holder, F.C., Schroeder, M.D., Comparative immunohistochemical, radioimmunological and biological attempt to identify arginine-vasotocin (AVT) in the pineal gland of reptiles and fishes (1979) Prog Brain Res, 52, pp. 459-463 
520 3 |a 1. Subcutaneous administration of a sympathoplexic drug, guanethidine, induced intensive uptake of water across the skin of the toad, Bufo arenarum, maintained in fresh water, even after complete removal of the ADH producing system. Guanethidine had no effect in the midbrain lesioned toad. No significant changes in urine production were detected. 2. Phenoxybenzamine, an alpha-adrenergic blocker, closely reproduced the guanethidine effect. Conversely, the alpha-agonist metaraminol induced a decrease in water uptake with associated oliguria. 3. Microinjection of phenoxybenzamine into the brain increased water uptake when applied to the midbrain tegmentum and decreased urine production when applied to the forebrain. 4. The data show that an adrenergic mechanism is associated with the control of water uptake through toad skin. This mechanism is at least in part dependent on the midbrain tegmentum and not on the diencephalic ADH production system. The main function of this adrenergic control is probably to prevent excessive uptake of water in the intact animal during long sojourns in fresh water. It might also serve to prevent a leaching-out of electrolytes. © 1982 Springer-Verlag.  |l eng 
593 |a Laboratorio de Fisiología del Comportamiento, Instituto de Biologia y Medicina Experimental, Obligado 2490, Buenos Aires, 1428, Argentina 
700 1 |a Bandsholm, U.C. 
700 1 |a Bronstein, A. 
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