Literature DB >> 1531276

The effect of calcium and magnesium ions on urinary urokinase and sialidase activity.

C H van Aswegen1, J C Dirksen van Sckalckwyk, P J du Toit, L Verster, R C Franz, D J du Plessis.   

Abstract

The effect of a promoter (calcium) and an inhibitor (magnesium) of urolithiasis was spectrophotometrically studied on urokinase (0.45 IU) and sialidase (5 mM). Although these mineral did not affect the sialidase activity, total inhibition of urokinase activity was observed with either 0.05 M calcium chloride or 0.1 M magnesium chloride. This observation might explain why calcium and magnesium respectively function as a promoter and an inhibitor of stone formation.

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Year:  1992        PMID: 1531276     DOI: 10.1007/bf00294333

Source DB:  PubMed          Journal:  Urol Res        ISSN: 0300-5623


  17 in total

1.  Biocolloids of urine in health and in calculous disease. II. Electrophoretic and biochemical studies of a mucoprotein insoluble in molar sodium chloride.

Authors:  W H BOYCE; M SWANSON
Journal:  J Clin Invest       Date:  1955-10       Impact factor: 14.808

2.  Direct fluorescent assay of urokinase and plasminogen activators of normal and malignant cells: kinetics and inhibitor profiles.

Authors:  M Zimmerman; J P Quigley; B Ashe; C Dorn; R Goldfarb; W Troll
Journal:  Proc Natl Acad Sci U S A       Date:  1978-02       Impact factor: 11.205

3.  Tamm-Horsfall mucoprotein. I. Localization in the kidney.

Authors:  E A Schenk; R H Schwartz; R A Lewis
Journal:  Lab Invest       Date:  1971-07       Impact factor: 5.662

4.  Assay of urokinase activity in plasma with a chromogenic substrate.

Authors:  S Hayashi; K Yamada
Journal:  Thromb Res       Date:  1981 Jun 1-25       Impact factor: 3.944

5.  An aminopeptidase occurring in pig kidney. I. An improved method of preparation. Physical and enzymic properties.

Authors:  E D Wachsmuth; I Fritze; G Pfleiderer
Journal:  Biochemistry       Date:  1966-01       Impact factor: 3.162

6.  Urinary citrate excretion in patients with urolithiasis and normal subjects.

Authors:  M Nikkilä; T Koivula; H Jokela
Journal:  Eur Urol       Date:  1989       Impact factor: 20.096

7.  Magnesium reduces calcium oxalate crystal formation in human whole urine.

Authors:  P C Hallson; G A Rose; S Sulaiman
Journal:  Clin Sci (Lond)       Date:  1982-01       Impact factor: 6.124

8.  The relationship between total urinary testosterone and renal calculi.

Authors:  C H van Aswegen; P Hurter; C A van der Merwe; D J du Plessis
Journal:  Urol Res       Date:  1989

9.  Plasminogen activator release during venous stasis and exercise as determined by a new specific assay.

Authors:  B Wiman; G Mellbring; M Rånby
Journal:  Clin Chim Acta       Date:  1983-01-24       Impact factor: 3.786

10.  Renal calculi-urate as a urokinase inhibitor.

Authors:  C H van Aswegen; A W Neitz; P J Becker; D J du Plessis
Journal:  Urol Res       Date:  1988
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  7 in total

1.  Meta-analysis of the urokinase gene 3'-UTR T/C polymorphism and susceptibility to urolithiasis.

Authors:  Dawei Li; Jikai Liu; Juchao Ren; Lei Yan; Hainan Liu; Zhonghua Xu
Journal:  Biomed Rep       Date:  2013-03-07

2.  Pyelonephritis: renal urokinase activity in rats on essential fatty acid diets.

Authors:  P J du Toit; C H van Aswegen; J D Nel; B Strasheim; P J Becker; D J du Plessis
Journal:  Urol Res       Date:  1994

3.  In vivo effects of urease-producing bacteria involved with the pathogenesis of infection-induced urolithiasis on renal urokinase and sialidase activity.

Authors:  P J du Toit; C H van Aswegen; J A Nel; P L Steyn; A J Ligthelm; D J du Plessis
Journal:  Urol Res       Date:  1995

4.  Effects of bacteria involved with the pathogenesis of infection-induced urolithiasis on the urokinase and sialidase (neuraminidase) activity.

Authors:  P J du Toit; C H van Aswegen; P L Steyn; A Pols; D J du Plessis
Journal:  Urol Res       Date:  1992

5.  Predisposition of genetic polymorphism with the risk of urolithiasis.

Authors:  Rama D Mittal; Hemant K Bid; Parmeet K Manchanda; Rakesh Kapoor
Journal:  Indian J Clin Biochem       Date:  2008-06-11

6.  Pyelonephritis: renal urokinase and sialidase (neuraminidase) activity in rats fed a standard laboratory diet.

Authors:  C H van Aswegen; P J du Toit; J D Nel; A J Ligthelm; D J du Plessis
Journal:  Urol Res       Date:  1994

7.  Association of urokinase gene 3'-UTR T/C polymorphism with calcium oxalate urolithiasis in children.

Authors:  Murat Ozturk; Yakup Kordan; Hakan Cangul; H Serkan Dogan; Hakan Kilicarslan; Hakan Vuruskan; Bulent Oktay
Journal:  Int Urol Nephrol       Date:  2008-02-01       Impact factor: 2.370

  7 in total

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