Hippurate synthesis and ammonia metabolism in isolated hepatocytes

The incorporation of benzoate into hippurate by isolated hepatocytes was limited by the availability of glycine. This limitation was unaffected by the addition of ammonia. When isolated hepatocytes were incubated in a solution containing urease, benzoate was completely ineffective in combating ammon...

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Veröffentlicht in:Biochemical and biophysical research communications 1982-04, Vol.105 (4), p.1341-1346
Hauptverfasser: Wendler, Philip A., Tremblay, George C.
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container_title Biochemical and biophysical research communications
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creator Wendler, Philip A.
Tremblay, George C.
description The incorporation of benzoate into hippurate by isolated hepatocytes was limited by the availability of glycine. This limitation was unaffected by the addition of ammonia. When isolated hepatocytes were incubated in a solution containing urease, benzoate was completely ineffective in combating ammonia accumulation, while a mixture of α-keto analogues of several amino acids reduced ammonia accumulation by 50%. These findings do not support the use of benzoate to combat hyperammonemia, but they do support the current use of α-keto analogues of amino acids for that purpose.
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source MEDLINE; Elsevier ScienceDirect Journals
subjects Ammonia - metabolism
Animals
Benzoates - pharmacology
Glycine - metabolism
Glycine - pharmacology
Hippurates - metabolism
In Vitro Techniques
Kinetics
Liver - drug effects
Liver - metabolism
Male
Rats
Rats, Inbred Strains
title Hippurate synthesis and ammonia metabolism in isolated hepatocytes
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