2020
Novel aspects of glutamine synthetase in ammonia homeostasis
Zhou Y, Eid T, Hassel B, Danbolt NC. Novel aspects of glutamine synthetase in ammonia homeostasis. Neurochemistry International 2020, 140: 104809. PMID: 32758585, DOI: 10.1016/j.neuint.2020.104809.Peer-Reviewed Original ResearchConceptsGamma-aminobutyric acidSevere liver diseaseElevated blood ammoniaAmmonia homeostasisInhibitory neurotransmitters glutamateUrea cycleEffects of hyperammonemiaPotassium bufferingNeurological sequelaeBrain edemaLiver diseaseBrain pathophysiologyUrea cycle pathwayBlood ammoniaExtrahepatic tissuesNeurotransmitter glutamateAmmonia clearanceAminobutyric acidComplete urea cycleCycle pathwayTwo-thirdsGlutamine synthetaseRecent studiesHomeostasisBody ammonia
2018
2235 15N-Leucine transport across the blood brain barrier is significantly impaired in the glutamine synthetase-inhibited brain
Gruenbaum S, Dhaher R, Behar K, Zaveri H, Erfe M, Eid T. 2235 15N-Leucine transport across the blood brain barrier is significantly impaired in the glutamine synthetase-inhibited brain. Journal Of Clinical And Translational Science 2018, 2: 1-1. PMCID: PMC6808188, DOI: 10.1017/cts.2018.37.Peer-Reviewed Original ResearchIpsilateral hippocampusDentate gyrusAstroglial glutamine synthetaseMicrodialysis guide cannulaBlood-brain barrierImmune system dysfunctionRight dentate gyrusBilateral dentate gyrusL-type amino acid transporterBrief isoflurane anesthesiaArtificial extracellular fluidSignificant increaseGlutamine concentrationImportant therapeutic targetBilateral microdialysis probesAmino acid influxMethionine sulfoximineContralateral hippocampusLiver diseaseBrain ammoniaSynaptic glutamateBrain barrierSystem dysfunctionGuide cannulaIsoflurane anesthesia