Calcium Concentration Within the Nephron, and Calcium Stone Formation

2015 ◽  
pp. 333-338
Author(s):  
S. A. R. Cooke
Keyword(s):  
Calcium Concentration ◽  
Stone Formation ◽  
Calcium Stone

Chemical factors important to calcium nephrolithiasis: evidence for impaired hydroxycarboxylic acid absorption causing hyperoxaluria.

1987 ◽  
Vol 33 (2) ◽  
pp. 243-247 ◽  
Author(s):  
D M Cowley ◽  
B C McWhinney ◽  
J M Brown ◽  
A H Chalmers
Keyword(s):  
Stone Formation ◽  
Urine Volume ◽  
Normal Subjects ◽  
Concurrent Administration ◽  
Calcium Stone ◽  
Hydroxycarboxylic Acids ◽  
Stone Formers ◽  
Daily Excretion ◽  
Chemical Factors ◽  
Urinary Oxalate Excretion

Abstract An investigation of variables important to calcium stone formation in urine indicated significantly increased daily excretion of calcium and oxalate and decreased excretion of ascorbate and citrate by recurrent calcium stone formers. In addition, urine volume, sodium, mucopolysaccharide, and protein were also significantly increased. We compared the uptake of citrate and ascorbate from the gut into the blood in normal controls and stone formers. These studies indicated significantly depressed absorption of both these hydroxycarboxylic acids in recurrent calcium stone formers. We also found that concurrent administration of citrate inhibited ascorbate absorption and increased urinary oxalate excretion after an ascorbate load in normal subjects and stone formers. These findings suggest a mechanism that explains hyperoxaluria in stone patients on the basis of a malabsorption of citrate, ascorbate, and possibly other hydroxycarboxylic acids.

Physico-chemical aspects of calcium stone formation

1990 ◽  
Vol 18 (1) ◽  
pp. S25-S30 ◽  
Author(s):  
J. M. Baumann
Keyword(s):  
Stone Formation ◽  
Calcium Stone ◽  
Physico Chemical

Risk factors of calcium stone formation in patients with primary Sj�gren's syndrome

1996 ◽  
Vol 24 (1) ◽  
pp. 39-43 ◽  
Author(s):  
P. Eriksson ◽  
T. Denneberg ◽  
H. -G. Tiselius
Keyword(s):  
Risk Factors ◽  
Stone Formation ◽  
Calcium Stone

Treatment of Recurrent Calcium Stone Formation with Cellulose Phosphate

1980 ◽  
Vol 123 (1) ◽  
pp. 9-13 ◽  
Author(s):  
U. Backman ◽  
B.G. Danielson ◽  
G. Johansson ◽  
S. Ljunghall ◽  
B. Wikström
Keyword(s):  
Stone Formation ◽  
Calcium Stone ◽  
Cellulose Phosphate

Hydroxyapatite induction and secondary aggregation of calcium oxalate, two important processes in calcium stone formation

2001 ◽  
Vol 29 (6) ◽  
pp. 417-422 ◽  
Author(s):  
J. Baumann ◽  
B. Affolter ◽  
U. Caprez ◽  
U. Henze ◽  
D. Lauper ◽  
...  
Keyword(s):  
Calcium Oxalate ◽  
Stone Formation ◽  
Calcium Stone
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