Brain Tryptophan Perturbation in Hepatic Encephalopathy: Implications for Effects by Neuropsychoactive Drugs in Clinical Practice; F. Bengtsson, et al. Hepatic Encephalopathy in Acute Liver Failure: Role of the Glutamate System; A. Michalak, et al. Glutamate and Muscarinic Receptors in the Molecular Mechanisms of Acute Ammonia Toxicity and of Its Prevention; M.D. Miñana, et al. Studies on the Pharmacological Properties of Oxindole (2-Hydroxyindole) and 5-Hydroxyindole: Are They Involved in Hepatic Encephalopathy?; F. Moroni, et al. The Involvement of Ammonia with the Mechanisms That Enhance GABA-ergic Neurotransmission in Hepatic Failure; E.A. Jones, A.S. Basile. Direct Enhancement of GABA-ergic Neurotransmission by Ammonia; J.-H. Ha, et al. The Peripheral Benzodiazepine Receptor and Neurosteroids in Hepatic Encephalopathy; M.D. Norenberg, et al. Ornithine Aminotransferase as a Therapeutic Target in Hyperammonemias; N. Seiler. Sparse-Fur (spf) Mouse as a Model of Hyperammonemia: Alterations in the Neurotransmitter Systems; I.A. Qureshi, K.V.R. Rao. Abnormal Gene Expression Causing Hyperammonemia in Carnitine-Deficient Juvenile Visceral Steatosis (JVS) Mice; T. Saheki, et al. 7 Additional Articles. Index.