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Impact Of Escherichia Coli On Urine Citrate And Urease-Induced Crystallization, A. Edin-Liljegren, H. H. Hedelin, L. Grenabo, S. Pettersson
Impact Of Escherichia Coli On Urine Citrate And Urease-Induced Crystallization, A. Edin-Liljegren, H. H. Hedelin, L. Grenabo, S. Pettersson
Scanning Microscopy
Escherichia coli (E. coli) is usually not a urease producer. It is, however, often cultured in urinary phosphate containing calculi including ammonium magnesium phosphate stones. This suggests the possibility that E. coli might be involved in stone forming process. The effect of E. coli on urine citrate and urease-induced crystallization in human urine has been studied in vitro. E. coli was found to strongly reduce urine citrate (after 48 hours). In the E. coli inoculated samples, the urease-induced crystallization was increased. There was a strong correlation, r = 0.8, between the citrate decrease and the increase in calcium precipitation. The …