-transparent.png){kind=logo}
The reliability of calculated activity products as an index of the urinary saturation of calcium oxalate was tested by comparing the solubility of calcium oxalate in various urine preparations. Urine samples were collected from six control subjects and nine patients with nephrolithiasis. From each sample four urine preparations were prepared: centrifugation at 1400 g. 0.22-mu filtration, ultrafiltration through a 10,000 daltons cutoff filter, and ultrafiltration through a 1000 daltons cutoff filter. Each preparation was incubated with an excess of calcium oxalate to steady-state, and the activity product of calcium oxalate was calculated for the ambient solution. Our findings suggest that most calcium and/or oxalate conplexes in urine that are not recognizable by available computational techniques for activity products probably reside in the fraction of 1000 to 10,000 daltons.
M J Nicar, and
K Holt, and
C Y Pak
October 1988,
Analytical chemistry,
M J Nicar, and
K Holt, and
C Y Pak
June 1989,
Cell structure and function,
M J Nicar, and
K Holt, and
C Y Pak
December 1986,
European journal of clinical investigation,
M J Nicar, and
K Holt, and
C Y Pak
July 1987,
Gut,
M J Nicar, and
K Holt, and
C Y Pak
November 1971,
Polski tygodnik lekarski (Warsaw, Poland : 1960),
M J Nicar, and
K Holt, and
C Y Pak
September 1988,
Scandinavian journal of gastroenterology,
M J Nicar, and
K Holt, and
C Y Pak
November 1979,
Journal of the National Cancer Institute,
M J Nicar, and
K Holt, and
C Y Pak
October 1989,
APMIS : acta pathologica, microbiologica, et immunologica Scandinavica,
M J Nicar, and
K Holt, and
C Y Pak
February 2018,
Journal of feline medicine and surgery,
M J Nicar, and
K Holt, and
C Y Pak
June 1970,
Gut,
