Urolithiasis 2 pp 422-422 | Cite as

Chemical Composition of the Urine in the Normal Black and White Population

  • A. M. Meyers
  • N. Whalley
  • W. J. Zakolski
  • T. Shar

Abstract

The prevalence of nephrolithiasis in white males and females is 12 and 5% respectively, and in blacks is <1%. In order to further investigate these striking discrepancies we compared dietary intake, serum values, urine solute, inhibitor content and Ca: Creat ratios before and after ingestion of a diet consisting of a standard intake of Na (100 mmol/24 hr) and Ca (400 mg/24 hr), in 31 (19F and 12M) recently urbanized blacks and 29 (17F and 12M) white age-matched volunteers. Glycosaminoglycans were measured on earlv morning urines by glucuronic acid determination.

Keywords

Crystallization Creatinine Citrate Oxalate Pyrophosphate 

Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • A. M. Meyers
    • 1
  • N. Whalley
    • 1
  • W. J. Zakolski
    • 1
  • T. Shar
    • 1
  1. 1.Metabolic Stone Clinic, Johannesburg HospitalUniversity of Witwatersrand and The South African Institute for Medical ResearchSouth Africa

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