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Usage Information

Antibacterial activity of human urine
Donald Kaye
Donald Kaye
Published October 1, 1968
Citation Information: J Clin Invest. 1968;47(10):2374-2390. https://doi.org/10.1172/JCI105921.
View: Text | PDF
Research Article

Antibacterial activity of human urine

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Abstract

The fate of bacteria in human urine was studied after inoculation of small numbers of Escherichia coli and other bacterial strains commonly implicated in urinary tract infection. Urine from normal individuals was often inhibitory and sometimes bactericidal for growth of these organisms. Antibacterial activity of urine was not related to lack of nutrient material as addition of broth did not decrease inhibitory activity. Antibacterial activity was correlated with osmolality, urea concentration and ammonium concentration, but not with organic acid, sodium, or potassium concentration. Between a pH range of 5.0-6.5 antibacterial activity of urine was greater at lower pH. Ultrafiltration and column chromatography to remove protein did not decrease antibacterial activity.

Authors

Donald Kaye

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