Determination of Urinary Calcium Oxalate Crystallization Mechanisms and Kinetics Using Flow Cytometry

1995 ◽  
Vol 55 (2) ◽  
pp. 93-100 ◽  
Author(s):  
Allen Rodgers ◽  
Barbara Hibbert ◽  
Trevor Probyn
Keyword(s):  
Flow Cytometry ◽  
Calcium Oxalate ◽  
Urinary Calcium ◽  
Calcium Oxalate Crystallization

Spontaneous urinary calcium oxalate crystallization in hypercalciuric children

2009 ◽  
Vol 24 (9) ◽  
pp. 1705-1710 ◽  
Author(s):  
Tadeusz Porowski ◽  
Jerzy Konstantynowicz ◽  
Walentyna Zoch-Zwierz ◽  
Jan Krzysztof Kirejczyk ◽  
Katarzyna Taranta-Janusz ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Urinary Calcium ◽  
Calcium Oxalate Crystallization

Inhibitory Effects of Urinary Calcium-Binding Substances on Calcium Oxalate Crystallization

1982 ◽  
Vol 127 (3) ◽  
pp. 568-571 ◽  
Author(s):  
Martin I. Resnick ◽  
Michael E. Sorrell ◽  
Jennifer A. Bailey ◽  
William H. Boyce
Keyword(s):  
Calcium Oxalate ◽  
Calcium Binding ◽  
Urinary Calcium ◽  
Inhibitory Effects ◽  
Calcium Oxalate Crystallization

Determination of Urinary Calcium-Oxalate Formation Risk with BONN-Risk-Index and EQUIL Applied to a Family

2002 ◽  
Vol 42 (3) ◽  
pp. 633-639 ◽  
Author(s):  
Norbert Laube ◽  
Vera Labedzke ◽  
Stefan Hergarten ◽  
Albrecht Hesse
Keyword(s):  
Calcium Oxalate ◽  
Risk Index ◽  
Urinary Calcium ◽  
Bonn Risk Index

The influence of freezer storage of urine samples on the BONN-Risk-Index for calcium oxalate crystallization

2004 ◽  
Vol 42 (6) ◽  
Author(s):  
Norbert Laube ◽  
Diana J. Zimmermann
Keyword(s):  
Calcium Oxalate ◽  
Risk Index ◽  
Urinary Stone ◽  
Urinary Calcium ◽  
Urine Samples ◽  
Calcium Oxalate Crystallization ◽  
Crystallization Experiment ◽  
Bonn Risk Index ◽  
Crystallization Risk

AbstractThis study was performed to quantify the effect of a 1-weekfreezer storage of urine on its calcium oxalate crystallization risk. Calcium oxalate is the most common urinary stone material observed in urolithiasis patients in western and affluent countries. The BONN-Risk-Index of calcium oxalate crystallization risk in human urine is determined from a crystallization experiment performed on untreated native urine samples.We tested the influence of a 1-weekfreezing on the BONN-Risk-Index value as well as the effect of the sample freezing on the urinary osmolality. In vitro crystallization experiments in 49 native urine samples from stone-forming and non-stone forming individuals were performed in order to determine their calcium oxalate crystallization risk according to the BONN-Risk-Index approach. Comparison of the results derived from original sample investigations with those obtained from the thawed aliquots by statistical evaluation shows that i) no significant deviation from linearity between both results exists and ii) both results are identical by statistical means. This is valid for both, the BONN-Risk-Index and the osmolality data.The differences in the BONN-Risk-Index results of both procedures of BONN-Risk-Index determination, however, exceed the clinically acceptable difference. Thus, determination of the urinary calcium oxalate crystallization risk from thawed urine samples cannot be recommended.

Urine osmolality predicts calcium-oxalate crystallization risk in patients with recurrent urolithiasis

Urolithiasis ◽  
2021 ◽  
Author(s):  
Stavros A. Kavouras ◽  
Hyun-Gyu Suh ◽  
Marion Vallet ◽  
Michel Daudon ◽  
Andy Mauromoustakos ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Urine Osmolality ◽  
Calcium Oxalate Crystallization ◽  
Crystallization Risk
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