Results 181 to 190 of about 21,845 (230)
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Journal of Urology, 1976
Calcium oxalate crystals were obtained from urine specimens submitted to a hospital laboratory. The incidence of crystalluria was 4.2 per cent of 42 times the maximum reported incidence of urinary calculi. In our opinion the crystalluria was real and not artifactual.
J S, Elliot, I N, Rabinowitz, M, Silvert
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Calcium oxalate crystals were obtained from urine specimens submitted to a hospital laboratory. The incidence of crystalluria was 4.2 per cent of 42 times the maximum reported incidence of urinary calculi. In our opinion the crystalluria was real and not artifactual.
J S, Elliot, I N, Rabinowitz, M, Silvert
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Calcium oxalate: calcium phosphate transformations
Urological Research, 2010Knowledge of the physical-chemical mechanisms responsible for the crystal growth and dissolution events involved in stone formation might enable the manipulation of thermodynamics in such a way as to increase the solubility of sparingly soluble phases (such as calcium oxalates and phosphates), thereby reducing the driving force for stone formation ...
George H, Nancollas, Zachary J, Henneman
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Oxalate binding proteins in calcium oxalate nephrolithiasis
Urological Research, 2003The existence of several oxalate specific binding proteins have been demonstrated in human and rat kidney. These occur in both cortical and medullary cells and are distributed mostly in the subcellular organelles. About 1/3 of the total cellular oxalate binding was localised in the inner mitochondrial membrane while the rest was in the nucleus.
Ramasamy, Selvam +1 more
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Journal of the American Dietetic Association, 1993
Dietary restriction of oxalate intake has been used as therapy to reduce the risk of recurrence of calcium oxalate kidney stones. Although urinary oxalate is derived predominantly from endogenous synthesis, it may also be affected by dietary intake of oxalate and calcium.
L K, Massey, H, Roman-Smith, R A, Sutton
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Dietary restriction of oxalate intake has been used as therapy to reduce the risk of recurrence of calcium oxalate kidney stones. Although urinary oxalate is derived predominantly from endogenous synthesis, it may also be affected by dietary intake of oxalate and calcium.
L K, Massey, H, Roman-Smith, R A, Sutton
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Calcium Oxalate Crystals in the Aqueous
American Journal of Ophthalmology, 1979We found octohedral crystals in the aqueous of a patient with phacolytic glaucoma. They were identified as calcium oxalate by their physical and chemical characteristics.
R S, Bartholomew, P F, Rebello
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Trends in Plant Science, 2001
Calcium oxalate is a common biomineral in plants, occurring as crystals of various shapes. It can be found in any tissue or organ in plants and is often formed in the vacuoles of specialized cells called crystal idioblasts. Recent work indicates that calcium oxalate formation is generally a mechanism for regulating bulk-free calcium levels in tissues ...
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Calcium oxalate is a common biomineral in plants, occurring as crystals of various shapes. It can be found in any tissue or organ in plants and is often formed in the vacuoles of specialized cells called crystal idioblasts. Recent work indicates that calcium oxalate formation is generally a mechanism for regulating bulk-free calcium levels in tissues ...
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Calcium Oxalate Urolithiasis in Cats
Journal of Endourology, 1999Urolithiasis has long been recognized as a cause of irritative voiding in cats. Before the late 1980s, sterile struvite was the most common urolith; today, however, 40% of feline uroliths are of calcium oxalate. This change may be partly attributable to the change to urine-acidifying, magnesium-restricted diets that were introduced to reduce the ...
C A, Buffington, D J, Chew
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Calcium oxalate crystalluria in a goat
Journal of the American Veterinary Medical Association, 1999Recognition of the diverse shapes of various urine crystals is necessary for their accurate identification. Calcium oxalate dihydrate crystals most commonly have an octahedral or envelope shape. Calcium ions and oxalic acid may form calcium oxalate crystals in urine. Calcium oxalate dihydrate crystalluria is a risk factor for urolith formation.
P, Clark +3 more
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Oxalate: effect on calcium absorbability
The American Journal of Clinical Nutrition, 1989Absorption of calcium from intrinsically labeled Ca oxalate was measured in 18 normal women and compared with absorption of Ca from milk in these same subjects, both when the test substances were ingested in separate meals and when ingested together. Fractional Ca absorption from oxalate averaged 0.100 +/- 0.043 when ingested alone and 0.140 +/- 0.063 ...
R P, Heaney, C M, Weaver
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Transformation of calcium oxalate hydrates
Journal of Crystal Growth, 1986The transformation kinetics of calcium oxalate trihydrate and calcium oxalate dihydrate to the thermodynamically stable monohydrate have been studied in batch precipitation systems. A combination of size distribution measurements, optical microscopy, X-ray diffraction and thermogravimetric analysis were used to characterise the processes involved.
Brečević, Ljerka +2 more
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