Glutamine and ammonia in hepatic encephalopathy

Sherry Dadsetan, Helle S. Waagepetersen, Arne Schousboe, Lasse K. Bak*

*Corresponding author for this work
3 Citations (Scopus)

Abstract

The amino acid glutamine is present in all tissues and it serves several purposes depending on the tissue in question. This chapter is devoted to a discussion of its role in relation to the elevated ammonia levels found in the brain in the context of hepatic encephalopathy (HE), a disturbance of the central nervous system due to liver failure [1] characterized by cognitive, psychiatric, and motor deficits. Early symptoms include reversal of sleep pattern, apathy, hypersomnia, irritability, and personal neglect and HE can progressively lead to coma and death [2]. Brain ammonia homeostasis is functionally associated with metabolism in the liver since this organ is responsible for removal of excess ammonia from the bloodstream. Thus, this chapter is intended to focus on glutamine metabolism in these two organs.

Original languageEnglish
Title of host publicationGlutamine in Clinical Nutrition
Number of pages9
PublisherSpringer New York LLC
Publication date1 Jan 2015
Pages219-227
ISBN (Print)9781493919314
ISBN (Electronic)9781493919321
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • Alanine
  • Astrocyte
  • Glutamine
  • Hepatic encephalopathy
  • Neuron

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