Reabsorption of inorganic sulfate in the frog kidney: Saturation of transport mechanism

1. 1. Clearance experiments were performed to study reabsorption of inorganic sulfate (SO 4) in the frog kidney. 2. 2. During stepwise elevation of the SO 4 concentration in plasma by i.v. sulfate administration (SO 4 titration), the absolute reabsorption of SO 4 did not increase but kept constant d...

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Veröffentlicht in:	Comparative biochemistry and physiology. A, Comparative physiology Comparative physiology, 1988, Vol.90 (3), p.471-473
Hauptverfasser:	Frick, Anselm, Toygar, Ahmet
Format:	Artikel
Sprache:	eng
Schlagworte:	Absorption Animals Biological and medical sciences Biological Transport Biomechanical Phenomena Diuresis Female Fundamental and applied biological sciences. Psychology Glomerular Filtration Rate Kidney - metabolism Kidney Tubules - metabolism Rana esculenta - metabolism Sulfates - pharmacokinetics Sulfates - urine Vertebrates: urinary system
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Zusammenfassung:	1. 1. Clearance experiments were performed to study reabsorption of inorganic sulfate (SO 4) in the frog kidney. 2. 2. During stepwise elevation of the SO 4 concentration in plasma by i.v. sulfate administration (SO 4 titration), the absolute reabsorption of SO 4 did not increase but kept constant during mild SO 4 loading. 3. 3. The maximal reabsorptive capacity for SO 4 (Tm SO 4 ) was about 0.37 μmol/30 min in this species. 4. 4. The present results do not indicate renal net secretion of SO 4 in the frog.
ISSN:	0300-9629
DOI:	10.1016/0300-9629(88)90222-8