Glutamine synthetase: role in neurological disorders

AR Jayakumar, MD Norenberg - The glutamate/GABA-glutamine cycle …, 2016 - Springer
Glutamine synthetase (GS) is an ATP-dependent enzyme found in most species that
synthesizes glutamine from glutamate and ammonia. In brain, GS is exclusively located in …

Roles of glutamine synthetase inhibition in epilepsy

T Eid, K Behar, R Dhaher, AV Bumanglag… - Neurochemical …, 2012 - Springer
Abstract Glutamine synthetase (GS, EC 6.3. 1.2) is a ubiquitous and highly
compartmentalized enzyme that is critically involved in several metabolic pathways in the …

Astrocyte glutamine synthetase: pivotal in health and disease

CF Rose, A Verkhratsky… - Biochemical Society …, 2013 - portlandpress.com
The multifunctional properties of astrocytes signify their importance in brain physiology and
neurological function. In addition to defining the brain architecture, astrocytes are primary …

Glutamine synthetase down-regulation reduces astrocyte protection against glutamate excitotoxicity to neurons

J Zou, YX Wang, FF Dou, HZ Lü, ZW Ma, PH Lu… - Neurochemistry …, 2010 - Elsevier
Although the role of astrocyte glutamate transporters in glutamate clearance is well
illustrated, the role of glutamine synthetase (GS) that influences this process remains to be …

Glutamine synthetase in brain: effect of ammonia

I Suarez, G Bodega, B Fernandez - Neurochemistry international, 2002 - Elsevier
Glutamine synthetase (GS) in brain is located mainly in astrocytes. One of the primary roles
of astrocytes is to protect neurons against excitotoxicity by taking up excess ammonia and …

Glutamine synthetase: localization dictates outcome

A Castegna, A Menga - Genes, 2018 - mdpi.com
Glutamine synthetase (GS) is the adenosine triphosphate (ATP)-dependent enzyme that
catalyses the synthesis of glutamine by condensing ammonium to glutamate. In the …

[HTML][HTML] Novel aspects of glutamine synthetase in ammonia homeostasis

Y Zhou, T Eid, B Hassel, NC Danbolt - Neurochemistry international, 2020 - Elsevier
Elevated blood ammonia (hyperammonemia) is believed to be a major contributor to the
neurological sequelae following severe liver disease. Ammonia is cleared via two main …

Glial glutamine homeostasis in health and disease

JV Andersen, A Schousboe - Neurochemical Research, 2023 - Springer
Glutamine is an essential cerebral metabolite. Several critical brain processes are directly
linked to glutamine, including ammonia homeostasis, energy metabolism and …

Selective deletion of glutamine synthetase in the mouse cerebral cortex induces glial dysfunction and vascular impairment that precede epilepsy and …

Y Zhou, R Dhaher, M Parent, QX Hu, B Hassel… - Neurochemistry …, 2019 - Elsevier
Glutamate-ammonia ligase (glutamine synthetase; Glul) is enriched in astrocytes and serves
as the primary enzyme for ammonia detoxification and glutamate inactivation in the brain …

Glutamate dehydrogenase as a neuroprotective target against neurodegeneration

AY Kim, EJ Baik - Neurochemical research, 2019 - Springer
Regulation of glutamate metabolism via glutamate dehydrogenase (GDH) might be the
promising therapeutic approach for treating neurodegenerative disorders. In the central …