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Am J Kidney Dis. 2007 Jun;49(6):865-72.

Looking at the urine: the renaissance of an unbroken tradition.

Author information

  • Renal Section, Department of Medicine, Baylor College of Medicine, Houston, TX 77030-3498, USA. geknoyan@bcm.edu

Abstract

The science of looking at the urine for diagnostic purposes, uroscopy, is as ancient as disease. Throughout history, urine, the first bodily fluid to be examined, has continuously and persistently provided medicine with an increasing body of knowledge about the workings of the inner body. For most of its history, uroscopy was a visual science; this focus peaked in the Middle Ages, when the vessel used to examine urine, the matula, became a symbol of the medical profession. Over time, the practice of uroscopy spread into the hands of quacks and apothecaries, who prescribed and sold their potions by merely looking at the urine. The consequent reformation measures of the 16th and 17th centuries coincided with the first attempts at analyzing the contents of urine. As a result, many of the chemical components now reported in metabolic profiles were first analyzed and identified in urine during the first half of the 18th century. In the process, what started as a science that bordered on divination laid the foundations of chemical analysis and spawned the disciplines of urology, endocrinology, and, after the use of urine in clearance studies, nephrology. The analytical methods and remarkable achievements of each of these disciplines have increased the value of examining urine. A renaissance of this oldest diagnostic tool of medicine is now under way in the proteomic profiling and detection of biomarkers in the urine, an approach which promises to further extend the merits of the unbroken tradition of looking at the urine.

PMID:
17533032
[PubMed - indexed for MEDLINE]
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