The Role of Oxalic Acid in Oxalic Nephrolithiasis

Thomas, John C.; Melón, J; Thomas, E; Steg, A; Aboulker, P

doi:10.1159/000394918

Cited by 6 publications

(4 citation statements)

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“…Many investigators have found similar values for urinary oxalate excretion in countries where people have different dietary habits (Hodgkinson and Williams, 1972;Thomas et al, 1973;Hallson and Rose, 1974;Tiselius, 1977;Yachiku et af., 1980). In particular, the average daily intake of calcium in Japan has been about 13.75 mmol/day (550 mg/ day) for the last 10 years or more (Ministry of Health and Welfare of Japan, 1983), while that of other Western countries ranges from 23.25 to 30 mmol/day (930 to 1200 mg/day) (Robertson et al, 1979;Bagnall, 1982;Itokawa, 1983;.…”

Section: Discussionmentioning

confidence: 94%

Comparison of Urinary Oxalate Excretion in Urolithiasis Patients With and Without Hypercalciuria

Koide

Bowyer

Brockis

1985

British Journal of Urology

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The relationships between urinary oxalate, calcium and magnesium were investigated in 81 patients with idiopathic calcium oxalate urolithiasis on their regular diets. A significant relationship was established between calcium and oxalate excretion in the analysis of recurrent stone-formers (n = 44, P less than 0.01), though there was no significant difference between the two in the analysis of the patients overall or in single stone-formers. This suggests that recurrent stone-formers may have some abnormality of oxalate absorption in relation to calcium absorption. The role of calcium-oxalate interaction in the gut as a cause of mild hyperoxaluria is discussed.

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Section: Discussionmentioning

confidence: 94%

Comparison of Urinary Oxalate Excretion in Urolithiasis Patients With and Without Hypercalciuria

Koide

Bowyer

Brockis

1985

British Journal of Urology

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“…Thomas und Melon wiesen bei Steinpatienten in 80% der Fälle Störungen der Oxalsäureausscheidung und in nur 50% Störungen der Kalziumausscheidung nach (34). Nachfolgende Untersuchungen anderer Autoren zeigten aber, daß Steinpatienten und gesunde Kontrollpersonen keine signifikant verschiedene Oxalsäureausscheidung haben (1)• Editorial: Hamsteinpathogenese -Praktische Aspekte Selbst bei Malabsorptionszuständen, wie beim Morbus Crohn oder nach Ileumresektion oder -ausschaltung, entsteht trotz der in 70% der Fälle nachweisbaren Hyperoxalurie nur bei maximal einem Viertel der Patienten ein Steinleiden (16).…”

Section: Oxalsäure -Malabsorptionunclassified

Harnsteinpathogenese - Praktische Aspekte

A¹

1980

Aktuel Urol

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“…On the other hand, using the enzymatic method described, it has been possible to undertake large numbers of measurements and obtain reliable results within the normal range, so revealing the facts described. Secondly, it should be noted that there are in the literature some suggestions that urinary oxalate may be raised in idiopathic hypercalciuria or idiopathic stone formation (RevGsova, Zvara and Gratzlova, 1971 ;Thomas et al, 1973), without however clear indication of the season of the year or whether the patients were on normal or low calcium intake. It is therefore possible that seasonal variations have been seen but not recognised.…”

Section: Normakuntreated Ih In Summer Monthsmentioning

confidence: 99%

Seasonal Variations in Urinary Excretion of Calcium and Oxalate in Normal Subjects in Patients with Idiopathic Hypercalciuria

Hallson

Kasidas

Rose

1977

British Journal of Urology

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A longitudinal 9-year retrospective study of 24-hour urinary calcium values has been made in a metabolic stone clinic amongst patients with idiopathic hypercalciuria. No seasonal variations could be observed in contrast ot a previous study from Leeds, A prospective longitudinal study was made of 24-hour urinary calcium values in a small group of normal subjects. No seasonal variation could be ovserved. In the prospective study no seasonal variations in urinary oxalate could be observed. In a 2-year longitudinal study of stone patients with idiopathic hypercalciuria, urinary oxalate was found to be higher in the summer than in the winter. This was attributed to the combination of a higher intake of oxalate-rich foods in the summer, and the low calcium diet with which they were treated.

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The Role of Oxalic Acid in Oxalic Nephrolithiasis

Cited by 6 publications

References 0 publications

Comparison of Urinary Oxalate Excretion in Urolithiasis Patients With and Without Hypercalciuria

Comparison of Urinary Oxalate Excretion in Urolithiasis Patients With and Without Hypercalciuria

Harnsteinpathogenese - Praktische Aspekte

Seasonal Variations in Urinary Excretion of Calcium and Oxalate in Normal Subjects in Patients with Idiopathic Hypercalciuria

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