The influence of pH on urinary ionized [Ca2+]: Differences between urinary tract stone formers and normal subjects

British Journal of Urology

Volumn 79, Issue 1, 1997, Pages 8-14

  Langley, S E M ^a,b   Fry, C H ^a  

^a INSTITUTE OF UROLOGY AND NEPHROLOGY   (United Kingdom)

^b SOUTHMEAD HOSPITAL   (United Kingdom)

Author keywords

Calcium ions; Ion selective electrodes; Ph; Urine; Urolithiasis

Indexed keywords

CALCIUM ION;

ARTICLE; CALCIUM BINDING; CALCIUM URINE LEVEL; CONTROLLED STUDY; HUMAN; INFRARED SPECTROSCOPY; ION SELECTIVE ELECTRODE; MAJOR CLINICAL STUDY; NORMAL HUMAN; PRIORITY JOURNAL; SOLUBILITY; STONE FORMATION; TURBIDITY; URINALYSIS; URINE PH; UROLITHIASIS;

BINDING SITES; CALCIUM; CRYSTALLIZATION; HUMANS; HYDROGEN-ION CONCENTRATION; MALE; PRECIPITATION; URINARY CALCULI;

EID: 0031397242     PISSN: 00071331     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. Pak C. Physicochemical basis for formation of renal stones of calcium phosphate origin: calculation of the degree of saturation of urine with respect to brushite. J Clin Invest 1969; 48: 1914-22
2. Robertson W, Peacock M, Nordin B. Activity products in stone-forming and non-stone-forming urine. Clin Sci 1968; 34: 579-94
3. Robertson W, Peacock M, Marshall R, Nordin B. Saturation inhibition index as a measure of the risk of calcium oxalate stone formation in the urinary tract. N Eng J Med 1976; 294: 249-52
4. Robertson W, Morgan D. The distribution of urinary calcium excretions in normal persons and stone formers. Clin Chim Acta 1972; 37: 503-9
5. 2+ in undiluted urine from stone formers and normal subjects using a new generation of ion-selective electrodes. Br J Urol 1995; 75: 288-95
6. Kunin CM, Chin QF, Chambers S. Indwelling urinary catheters in the elderly. Relation of 'catheter life' to formation of encrustations in patients with and without blocked catheter. Am J Med 1987; 82: 405-11
7. Hedelin H, Bratt CG, Eckerdal G, Lincoln K. Relationship between urease-producing bacteria, urinary pH and encrustation on indwelling catheters. Br J Urol 1991; 67: 527-31
8. Meyer J, Bergert J, Smith L. Epitaxial relationships in urolithiasis: the calcium oxalate monohydrate-hydroxyapatite system. Clin Sci Mol Med 1975; 49: 369-74
9. New York: Plenum Publishing Corp, 1992: 134
10. Pak C. Physicochemical basis for formation of renal tract stones of calcium phospahte origin: calculation of the degree of saturation of urine with respect to brushite. J Clin Invest 1969; 48: 1914-22
11. Pak C, Eanes E, Ruskin B. Spontaneous precipitation of brushite in urine: evidence that brushite is the nidus of renal stones originating as calcium phosphate. Proc Natl Acad Sci 1971; 68: 1456-60
12. Nancollas GH, Gardiner GL. Kinetics of crystal growth of calcium oxalate monohydrate. J Crystal Growth; 1974; 21: 267-76
13. Werness P, Brown C, Smith L, Finlayson B. Equil2: a basic computer program for the calculation of urinary saturation. J Urol 1985; 134: 1242-4
14. Singhal P, Jacobson A, Mandin H, Hyne J. Calcium dynamics in idiopathic calcium stone formers. Biochem Med 1983; 29: 122-33
15. Vahlensieck W, Bach D, Hesse A, Schneeberger W. Metabolic investigations in 407 recurrent stone-formers and healthy controls. In Smith L, Robertson W, Finlayson W eds, Urolithiasis: Clinical and Basic Research. New York: Plenum Press, 1981: 29-34
16. Menon M, Mahle C. Urinary citrate excretion in patients with renal calculi. J Urol 1983; 129: 1158-60
17. Parks J, Coe F. A urinary calcium-citrate index for the evaluation of nephrolithiasis. Kidney Int 1986; 30: 85-90
18. Smith L. Hyperoxaluric states. In Coe F, Flavus M eds, Disorders of Bone and Mineral Metabolism. New York: Raven Press, 1992: 707-28