Progression of Glomerular Sclerosis in Experimental Uremic Rats by Administration of Indole, a Precursor of Indoxyl Sulfate
作者:
Toshimitsu Niwa,
Mkhihito Ise,
Takashi Miyazaki,
期刊:
American Journal of Nephrology
(Karger Available online 1994)
卷期:
Volume 14,
issue 3
页码: 207-212
ISSN:0250-8095
年代: 1994
DOI:10.1159/000168716
出版商: S. Karger AG
关键词: Chronic renal failure;Glomerular sclerosis;Indole;Indoxyl sulfate;Uremia
数据来源: Karger
摘要:
In uremia there is a marked elevation of serum levels of indoxyl sulfate due to its decreased renal clearance. Indoxyl sulfate is synthesized in the liver from indole which is produced by bacteria in the intestines. To determine the role of indoxyl sulfate in the progression of chronic renal failure, we administered indole, the precursor of indoxyl sulfate, to subtotally nephrectomized uremic rats. The oral administration of indole increased the serum levels of creatinine and blood urea nitrogen and decreased creatinine, inulin, and p-aminohippuric acid clearances. The glomerular sclerosis index in the indole-treated rats was higher than in the control uremic rats. After oral administration, indole could not be detected in the urine, but large amounts of its metabolite, indoxyl sulfate. Thus, indole administration stimulated glomerular sclerosis in a uremic model through the production of indoxyl sulfate.
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