Urolithiasis in Okinawa, Japan: A relatively high prevalence of uric acid stones

Hossain, Rayhan Zubair; Ogawa, Yoshihide; Hokama, Seitetsu; Morozumi, Makoto; Hatano, Tadashi

doi:10.1046/j.1442-2042.2003.00656.x

Cited by 33 publications

(12 citation statements)

References 17 publications

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“…Oxalates (whewellite, weddelite, or their mixtures) are the most considerable part of kidney stones in the assigned groups. These results are in a good agreement with the data reported by Hossain et al (2003) for Japan, by Chou et al (2007) for Taiwan, and by Trinchieri et al (1996) for Italy. For comparison, Hossain et al (2003) reported about 58.4% pure stones and about 40% oxalates.…”

Section: Resultssupporting

confidence: 95%

“…These results are in a good agreement with the data reported by Hossain et al (2003) for Japan, by Chou et al (2007) for Taiwan, and by Trinchieri et al (1996) for Italy. For comparison, Hossain et al (2003) reported about 58.4% pure stones and about 40% oxalates. Zaidman et al (1986) reported about 77.8% oxalates content for Israel that is higher than our results.…”

Section: Resultssupporting

confidence: 95%

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X-ray diffraction and SEM study of kidney stones in Israel: quantitative analysis, crystallite size determination, and statistical characterization

Uvarov

Popov

Shapur

et al. 2011

Environ Geochem Health

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Urinary calculi have been recognized as one of the most painful medical disorders. Tenable knowledge of the phase composition of the stones is very important to elucidate an underlying etiology of the stone disease. We report here the results of quantitative X-ray diffraction phase analysis performed on 278 kidney stones from the 275 patients treated at the Department of Urology of Hadassah Hebrew University Hospital (Jerusalem, Israel). Quantification of biominerals in multicomponent samples was performed using the normalized reference intensity ratio method. According to the observed phase compositions, all the tested stones were classified into five chemical groups: oxalates (43.2%), phosphates (7.7%), urates (10.3%), cystines (2.9%), and stones composed of a mixture of different minerals (35.9%). A detailed analysis of each allocated chemical group is presented along with the crystallite size calculations for all the observed crystalline phases. The obtained results have been compared with the published data originated from different geographical regions. Morphology and spatial distribution of the phases identified in the kidney stones were studied with scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS). This type of detailed study of phase composition and structural characteristics of the kidney stones was performed in Israel for the first time.

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Section: Resultssupporting

confidence: 95%

Section: Resultssupporting

confidence: 95%

X-ray diffraction and SEM study of kidney stones in Israel: quantitative analysis, crystallite size determination, and statistical characterization

Uvarov

Popov

Shapur

et al. 2011

Environ Geochem Health

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“…[7][8][9][10] The main component of urinary calculi in industrialized countries is calcium oxalate, accounting for approximately 75% to 90% of urinary stones, followed by calcium phosphate and UA. [11][12][13] Our study showed that COM was detected in 74.2% of total stones analyzed with 90.0% of the pure stones and 57.4% of the mixed stones.…”

Section: Discussionmentioning

confidence: 99%

Urinary Stone Composition in Israel: Current Status and Variation with Age and Sex—A Bicenter Study

Usman

Golan

Abdin

et al. 2013

Journal of Endourology

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Modern techniques of urinary stone analysis showed that the most frequent stone component in Israel is calcium oxalate monohydrate. In contrast to earlier reports and in accordance with reports from other countries, the overall frequency of uric acid is 14.5%. With age, the frequency of uric acid increases reaching 21% in persons >60 years old. A significant sex difference was noted in the distribution of calcium oxalate stones and infection stones. The classic 3:1 ratio was maintained, however.

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“…There is considerable variability in the proportion of uric acid stones within different geographies and this likely reflects differences in the pathophysiology of uric acid stones detailed below [16,17].…”

Section: Uric Acid Biologymentioning

confidence: 99%

Update on the Pathophysiology and Management of Uric Acid Renal Stones

Kenny

Goldfarb

2010

Curr Rheumatol Rep

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Idiopathic uric acid nephrolithiasis appears to be increasing in prevalence. While it has long been known that low urine pH is associated with uric acid stones, only recently has the pathophysiological basis for this disease emerged. Excessively acidic urine is the decisive risk for uric acid lithogenesis, and patients with diabetes and the metabolic syndrome often hold the company of low urine pH. While association does not imply causation, interesting insights have been made regarding insulin's influence on acid-base physiology. We review recent evidence from both the molecular and clinical realms to underline the importance of [H+] in the development and treatment of uric acid nephrolithiasis.

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Urolithiasis in Okinawa, Japan: A relatively high prevalence of uric acid stones

Abstract: Aim : The aim of the present study was to investigate the composition of urinary tract stones in patients from Okinawa, the most southern island group of Japan.

Cited by 33 publications

References 17 publications

X-ray diffraction and SEM study of kidney stones in Israel: quantitative analysis, crystallite size determination, and statistical characterization

X-ray diffraction and SEM study of kidney stones in Israel: quantitative analysis, crystallite size determination, and statistical characterization

Urinary Stone Composition in Israel: Current Status and Variation with Age and Sex—A Bicenter Study

Update on the Pathophysiology and Management of Uric Acid Renal Stones

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