The role of urine pH in the occurrence of phosphaturia

The density of calcium phosphate and the pH were determined in 15 postprandial urine specimens with heavy precipitation of amorphous calcium phosphate, that is phosphaturia, collected from 5 patients with calcium urolithiasis (stone-formers) and 3 patients with no known urological disease (controls)...

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Veröffentlicht in:Hinyokika kiyo. Acta urologica Japonica. - 1962. - 35(1989), 9 vom: 09. Sept., Seite 1475-8
1. Verfasser: Tozuka, K (VerfasserIn)
Weitere Verfasser: Hara, Y, Moriguchi, H, Kikuchi, T, Tokue, A
Format: Aufsatz
Sprache:Japanese
Veröffentlicht: 1989
Zugriff auf das übergeordnete Werk:Hinyokika kiyo. Acta urologica Japonica
Schlagworte:English Abstract Journal Article Calcium Phosphates alpha-tricalcium phosphate amorphous calcium phosphate tetracalcium phosphate Phosphorus 27YLU75U4W calcium phosphate, monobasic, anhydrous 701EKV9RMN mehr... calcium phosphate 97Z1WI3NDX calcium phosphate, dibasic, anhydrous L11K75P92J Calcium SY7Q814VUP
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245 1 4 |a The role of urine pH in the occurrence of phosphaturia 
264 1 |c 1989 
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500 |a Date Completed 15.12.1989 
500 |a Date Revised 21.11.2013 
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520 |a The density of calcium phosphate and the pH were determined in 15 postprandial urine specimens with heavy precipitation of amorphous calcium phosphate, that is phosphaturia, collected from 5 patients with calcium urolithiasis (stone-formers) and 3 patients with no known urological disease (controls). Phosphaturia, not related to urinary tract infection or administration of alkalinizing agents, was found repeatedly at our outpatient clinic in these patients. The correlative relationship was not confirmed between the density of calcium phosphate and the pH. The concentration of calcium and phosphorus was also determined in 10 urine specimens with phosphaturia. The concentration of phosphorus was correlated significantly with the pH (r = -0.775, p less than 0.01), although the concentration of calcium was not correlated with the pH. The pH of 11 urine specimens with phosphaturia from the controls was 7.51 +/- 0.31 (mean +/- S.D.) and the pH of 18 urine specimens with phosphaturia from the stone-formers was 6.81 +/- 0.34. The pH was significantly lower in the urine specimens from the stone-formers than in those from the controls (p less than 0.01). We have noted that the occurrence of phosphaturia depends not only on the urinary pH but on the concentration of phosphorus. It is interesting that phosphaturia often occurs in urine specimens with a pH below 7 in stone-formers 
650 4 |a English Abstract 
650 4 |a Journal Article 
650 7 |a Calcium Phosphates  |2 NLM 
650 7 |a alpha-tricalcium phosphate  |2 NLM 
650 7 |a amorphous calcium phosphate  |2 NLM 
650 7 |a tetracalcium phosphate  |2 NLM 
650 7 |a Phosphorus  |2 NLM 
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650 7 |a calcium phosphate, monobasic, anhydrous  |2 NLM 
650 7 |a 701EKV9RMN  |2 NLM 
650 7 |a calcium phosphate  |2 NLM 
650 7 |a 97Z1WI3NDX  |2 NLM 
650 7 |a calcium phosphate, dibasic, anhydrous  |2 NLM 
650 7 |a L11K75P92J  |2 NLM 
650 7 |a Calcium  |2 NLM 
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700 1 |a Hara, Y  |e verfasserin  |4 aut 
700 1 |a Moriguchi, H  |e verfasserin  |4 aut 
700 1 |a Kikuchi, T  |e verfasserin  |4 aut 
700 1 |a Tokue, A  |e verfasserin  |4 aut 
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