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Outflux of 45Calcium Along the Rat Nephron

  • R. Greger
  • F. Lang
  • H. Oberleithner
  • P. Deetjen
Part of the Advances in Experimental Medicine and Biology book series (AEMB, volume 103)

Abstract

From previous micropuncture data (1,4–6,9–15,17,19) it was postulated that calcium is reabsorbed in the proximal tubule and in addition in the distal tubule and/or collecting duct. This was concluded by comparing the amount of calcium present at the distal puncture site and that in final urine. Although this discrepancy between distal and urinary calcium load as detected by free flow micropuncture and clearance techniques might reflect distal reabsorption of calcium, it is no direct prove for that. A similar result might be obtained if there was nephron heterogeneity in regard to calcium reabsorption with the implication that deeper nephrons reabsorb calcium more avidly than superficial ones.

Keywords

Proximal Tubule Distal Tubule Distal Convoluted Tubule Nephron Segment Calcium Reabsorption 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1978

Authors and Affiliations

  • R. Greger
    • 1
  • F. Lang
    • 1
  • H. Oberleithner
    • 1
  • P. Deetjen
    • 1
  1. 1.Physiologisches InstitutUniversität InnsbruckInnsbruckAustria

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