Modulation of calcium oxalate monohydrate crystallization kinetics by urine of preterm neonates

2001 ◽  
Vol 38 (6) ◽  
pp. 1229-1234 ◽  
Author(s):  
Eveline A. Schell-Feith ◽  
Ivo Que ◽  
Dirk J. Kok ◽  
Joana E. Kist-van Holthe ◽  
Esther Kühler ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Crystallization Kinetics ◽  
Calcium Oxalate Monohydrate ◽  
Preterm Neonates

Ultrafiltration of Human Urine Affects Calcium Oxalate Monohydrate (COM) Crystallization Kinetics

1994 ◽  
pp. 297-298
Author(s):  
D. T. Erwin ◽  
J. Alam ◽  
D. J. Kok ◽  
A. Annaloro ◽  
J. Vaughn ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Crystallization Kinetics ◽  
Human Urine ◽  
Calcium Oxalate Monohydrate

scholarly journals Modulation of calcium oxalate monohydrate crystallization kinetics in vitro

1988 ◽  
Vol 34 (3) ◽  
pp. 346-350 ◽  
Author(s):  
Dik J. Kok ◽  
Socrates E. Papafoulos ◽  
Leo J.M.J. Blomen ◽  
Olav L.M. Bijvoet
Keyword(s):  
Calcium Oxalate ◽  
Crystallization Kinetics ◽  
Calcium Oxalate Monohydrate

Modulation of Calcium-Oxalate-Monohydrate Crystallization Kinetics in Vitro

Urolithiasis ◽  
1989 ◽  
pp. 215-215 ◽  
Author(s):  
D. J. Kok ◽  
S. E. Papapoulos ◽  
I. Que ◽  
O. L. M. Bijvoet
Keyword(s):  
Calcium Oxalate ◽  
Crystallization Kinetics ◽  
Calcium Oxalate Monohydrate

scholarly journals Can stone composition be predicted by plain X-ray and/or non-contrast CT? A study validated by X-ray diffraction analysis

2020 ◽  
Vol 26 (1) ◽  
Author(s):  
Mohamed Gadelmoula ◽  
Ahmed M. Moeen ◽  
Ahmed Elderwy ◽  
Mohamed S. Abdel-Kader ◽  
Ayman Elqady ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Diffraction Analysis ◽  
Great Influence ◽  
Calcium Oxalate Monohydrate ◽  
Categorical Variables ◽  
Stone Analysis ◽  
Stone Composition ◽  
Cutoff Value ◽  
X Ray ◽  
Contrast Ct

Abstract Background The stone composition has a great influence on the outcome of its treatment. There are several tests to predict the composition of stones preoperatively and stone analysis postoperatively. Herein, we want to evaluate if the stone composition could be predicted from plain X-ray KUB (PKUB) and/or non-contrast CT (NCCT) validated by in vitro X-ray powder diffraction analysis (XRD). Methods Between April 2014 and March 2016, 100 cases with urinary tract stones were included in the study. The radio-opacity of the stones in PKUB, stone density by NCCT, and after stone extraction, XRD were performed. Statistical analysis for the results was performed using Chi-square and Fisher exact tests for categorical variables and Mann–Whitney U and Kruskal–Wallis H for the nonparametric variables. The receiver operating characteristic curve was constructed to determine the best cutoff value. Results This study included 74 males and 26 females with a median age of 32 years (range 2–70). Regarding the radio-opacity by PKUB, there were 30 stones dense opaque, 44 opaque, 21 faint opaque, and 5 radiolucent. XRD revealed 97 mixed and 3 pure stones. The calcium oxalate monohydrate (COM) stone composition could be predicted in dense opaque stone by PKUB in 75.9% and urate composition in the radiolucent stone by 40%. The cutoff value of HU density by NCCT to the dense opaque stones in the PKUB was > 1020 and for radiolucent stones was < 590. Conclusion Stone radio-opacity by PKUB and its attenuation value by NCCT could successfully predict its calcium oxalate monohydrate, struvite, and urate composition. However, the chemical stone analysis is still required as most stones are mixed.

Surface effects in the crystal growth of calcium oxalate monohydrate

1987 ◽  
Vol 118 (2) ◽  
pp. 379-386 ◽  
Author(s):  
R.P. Singh ◽  
S.S. Gaur ◽  
D.J. White ◽  
G.H. Nancollas
Keyword(s):  
Crystal Growth ◽  
Calcium Oxalate ◽  
Surface Effects ◽  
Calcium Oxalate Monohydrate

scholarly journals Inhibition of calcium oxalate monohydrate by poly(acrylic acid)s with different end groups

2003 ◽  
Vol 91 (3) ◽  
pp. 2035-2041 ◽  
Author(s):  
W. O. S. Doherty ◽  
C. M. Fellows ◽  
S. Gorjian ◽  
E. Senogles ◽  
W. H. Cheung
Keyword(s):  
Acrylic Acid ◽  
Calcium Oxalate ◽  
Calcium Oxalate Monohydrate ◽  
End Groups ◽  
Poly Acrylic Acid
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