Investigation of Enterohepatic Bile Acid Circulation with [15N]Taurocholate |
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Authors: | U E Rolle-kampczyk P Krumbiegel Th Richter |
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Institution: | 1. UFZ-Umweltforschungszentrum Leipzig-Halle GmbH, Sektion Expositionsforschung und Epidemiologie , Leipzig, Deutschland;2. Universit?tskinderklinik Leipzig , Deutschland |
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Abstract: | Abstract 15N]Taurocholate has been prepared and used as a simple urine test substrate as a substitute for 14C- and 13C breath test substrates. 15N]Taurocholate was administered instead of 15N] glycocholate assuming that taurine is mainly used in the cholate cycle. Differences were found between healthy and diseased subjects, although deconjugated 15N]taurine was recovered in urine much less than expected. To get additional information on the actual excess of free taurine, 15N]taurine was administered orally in parallel investigations. Apparently, large fluctuations in the whole body taurine metabolism are responsible for the unexpected results. |
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Keywords: | Bile acid circulation nitrogen 15 organ function tests taurine taurocholate tracer techniques |
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