Global ETD Search
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Showing 1 to 20 of 29 for “"Urolithiasis"”.
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Scientific aspects of urolithiasis : quantitative stone analyses and crystallization experiments
… various scientific approaches to the study of urolithiasis. In the first instance, the theory, development and results of three quantitative analytical procedures are described while in the second, crystallization experiments in a rotary evaporator are presented. Of the different methods of …
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Measurement of Pre and Postprandial Urine Calcium to Creatinine Ratio to Identify Calcium Oxalate Urolithiasis in Miniature Schnauzers
… was calculated for each postprandial time. Urolithiasis status and the time point were assessed for impact on the UCa/Cr and change in UCa/Cr using a mixed model ANOVA. Based on 9 urolith-forming and 15 control dogs enrolled, urolith-forming Miniature Schnauzers have significantly higher …
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Studies of genetic, gastrointestinal, renal and dietary factors in white and black South African subjects as a possible key to understanding the relative absence of calcium oxalate kidney stone disease in the black population
The incidence of urolithiasis in South Africa's black population is extremely rare «1%) while in the white population it is similar to that of western countries (-15%). The present thesis was aimed at shedding more light on the complex nature of the physicochemical, biochemical and physiological …
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Chemical modelling of urine
… investigate some of the factors associated with urolithiasis. A specific model development procedure was used. This procedure was based on iterative construction, validation, refinement and usage of the model. One refinement stage involved the potentiometric characterisation of the solution …
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Uric acid metabolism in the Dalmatian coach hound
… these abnormalities is a high incidence of urate urolithiasis in this breed. Other diseases such as recurrent dermatitis, chronic cystitis and deafness are also found in the Dalmatian and whether there is any causal relationship with the uric acid disorder is unknown. In terms of the quantity of …
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Coherent Scatter Computed Tomography for Core Composition Analysis of Intact Kidney Stones - Prospective Clinical Study
Urolithiasis is the presence of urinary calculi (urinary stones) at any level along the excretory system. Establishing accurate and complete mineral composition of the stones is one of the main factors in deciding the best steps for therapy and recurrence prevention. Currently, infrared …
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Optimization of extraction parameters of selected Malaysian plants towards antiurolithiatic activities (IN-VITRO)
Urolithiasis has become a worldwide problem and its management depends on surgical procedures that are costly and cause reoccurrence. Anacardium occidentale (gajus), Ananas comosus (nanas), Aquilaria malaccencis (karas), Centella asiatiaca (pegaga), Ceiba petandra (kekabu), Euphorbia hirta (ara …
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The effect of inositol-hexakisphosphate (phytate) on urinary risk factors for calcium oxalate urolithiasis in South African population groups with different kidney stone risk profiles : theoretical modelling, in vitro crystallisation experiments and in vivo human studies
… may contribute to the relative rarity of urolithiasis in this group. Potentiometric titrations were conducted to determine thermodynamic binding constants of soluble calcium-phytate complexes. Binding constants of seven complexes were identified. These were included in the data base of the …
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Mitigation of intrarenal pressure in retrograde intrarenal surgery with a novel isoprenaline eluting guidewire
Urolithiasis ranks as the third most prevalent condition in urology, with statistical evidence indicating a lifetime risk of 13% in males and 7% in females, alongside a recurrence rate of 50% within a decade. The surgical care of urolithiasis is intricate, with various competing therapeutic …
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Studies of the effects of various lithogenic and antilithogenic dietry supplements on calcium oxalate kidney stone risk factors in South African black and white subjects
In South Africa, the incidence of urolithiasis in the white population occurs to the same extent as in other western societies. However, in the black population, this disease is extremely rare. Differences in the gastrointestinal and renal handling of several lithogenic and antilithogenic agents in …
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The influence of magnesium deficiency on kidney lysosomal enzyme levels in the rat
… exhibits a mechanism very similar to that of urolithiasis in humans. Work done with lysosomal stabilizers and rats fed this deficient diet shows a reduction in calcification with the administration of these drugs. Accordingly, a study was undertaken to examine the mechanism of this process …
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The effects of calcium, magnesium and citrate health supplements on urinary risk factors for calcium oxalate kidney stone formation
… previously untested in the management of CaOx urolithiasis, was investigated. 30 healthy males (MC), 30 male CaOx stone formers (MSF), 30 healthy females (FC) and 30 female CaOx stone formers (FSF) participated in the study. The experimental design which was implemented was a placebo …
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The effects of calcium, magnesium and citrate health supplements on urinary risk factors for calcium oxalate kidney stone formation
… previously untested in the management of CaOx urolithiasis, was investigated. 30 healthy males (MC), 30 male CaOx stone formers (MSF), 30 healthy females (FC) and 30 female CaOx stone formers (FSF) participated in the study. The experimental design which was implemented was a placebo …
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Vergleich der Niedrigdosis-Spiral-Computertomographie mit der konventionellen Spiral-Computertomographie in der Akutdiagnostik von Flankenschmerzen
… akutes Harnsteinleiden vor. Die Prävalenz der Urolithiasis ist bei diesen Patienten vergleichsweise hoch. In anderen Studien zur Überprüfung des diagnostischen Stellenwerts der nativen Spiral-CT liegt sie in einem Bereich von 39%-69% (26, 59, 54, 89, 100). Dies liegt daran, dass es sich hier um …
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The effect of mTOR inhibitor rapamycin on a dietary Drosophila melanogaster model of calcium oxalate nephrolithiasis
… may prevent the progression of calcium oxalate urolithiasis. In this study, we examined the effect of short-term intermittent rapamycin treatment on the area of calcium oxalate concretion in the Malpighian tubules of a Drosophila melanogaster fed a lithogenic diet containing 0.1% sodium oxalate.
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Kidney stone rarity in South Africa's black population : investigation of the biochemical and physico-chemical properties of Tamm Horsfall Mucoprotein as a possible contributory factor
… of calcium oxalate crystallisation. Since urolithiasis in South African blacks is extremely rare, this study was undertaken to compare the relative inhibitory and biochemical properties of this protein in South African black and white healthy and stone—forn1ing male subjects. THP was …
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The Effects of Various Therapeutics on Cystine Stone Formation
… the urine eventually lead to recurrent cystine urolithiasis due to its inability to solubilize. Despite having various forms of treatments such as thiol pharmaceutical therapies such as tiopronin and urine alkalinizing agents like potassium citrate, only few patients with cystinuria are able to …
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Experimental Evaluation of Urinary Bladder Marsupialization in Male Goats
… resolution of clinical cases of obstructive urolithiasis in male goats. The purpose of this study was to evaluate the six-month outcome of urinary bladder marsupialization in male goats. The urinary bladders of six male goats free from systemic disease were marsupialized following induced …
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Extracorporeal shock wave for the treatment of chronic venous ulcers: a pilot study.
… clinical use in the treatment of kidney stones (urolithiasis) and later in the treatment of orthopaedic non-union fractures. More recently, the ability of ECSW to improve the healing of soft tissue wounds has been assessed. A review of the current literature base revealed a limited number of …
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