Renal function in sea snakes. II. Sodium, potassium, and magnesium excretion.

S. Benyajati, S. D. Yokota, William H Dantzler

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2 Citations (Scopus)

Abstract

Renal clearance studies performed on the sea snake Aipysurus laevis demonstrated net tubular reabsorption of Na and both net tubular secretion and reabsorption of Mg and K. Fractional excretion of Na (FENa) was 0.05 under control conditions and increased markedly with hyperosmotic salt loading. Within each group, however, higher glomerular filtration rates were accompanied by disproportionately greater Na reabsorption. FEMg was 0.66 under control conditions and increased with Mg loading. The rate of Mg secretion was positively correlated with the urine flow rate. However, Mg loading caused a flow-independent increase in Mg secretion that was correlated with increasing plasma Mg concentration. FEK was 0.86 under control conditions and increased with K loading as a result of enhanced K secretion by the renal tubules. Like renal Mg secretion, renal K secretion showed a flow-dependent component as well as a flow-independent component related to plasma K concentration.

Original languageEnglish (US)
JournalThe American journal of physiology
Volume249
Issue number2 Pt 2
StatePublished - Aug 1985

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Elapidae
Magnesium
Potassium
Sodium
Kidney
Glomerular Filtration Rate
Salts
Urine

ASJC Scopus subject areas

  • Medicine(all)

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Renal function in sea snakes. II. Sodium, potassium, and magnesium excretion. / Benyajati, S.; Yokota, S. D.; Dantzler, William H.

In: The American journal of physiology, Vol. 249, No. 2 Pt 2, 08.1985.

Research output: Contribution to journalArticle

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