The glutamate‐glutamine cycle is not stoichiometric: fates of glutamate in brain

MC McKenna - Journal of neuroscience research, 2007 - Wiley Online Library
Although glutamate is usually thought of as the major excitatory neurotransmitter in brain, it
is important to note that glutamate has many other fates in brain, including oxidation for …

Mitochondrial substrate-level phosphorylation as energy source for glioblastoma: review and hypothesis

C Chinopoulos, TN Seyfried - ASN neuro, 2018 - journals.sagepub.com
Glioblastoma multiforme (GBM) is the most common and malignant of the primary adult brain
cancers. Ultrastructural and biochemical evidence shows that GBM cells exhibit …

Which way does the citric acid cycle turn during hypoxia? The critical role of α‐ketoglutarate dehydrogenase complex

C Chinopoulos - Journal of neuroscience research, 2013 - Wiley Online Library
The citric acid cycle forms a major metabolic hub and as such it is involved in many disease
states involving energetic imbalance. In spite of the fact that it is being branded as a “cycle” …

[HTML][HTML] Cytosolic and mitochondrial malic enzyme isoforms differentially control insulin secretion

RL Pongratz, RG Kibbey, GI Shulman… - Journal of Biological …, 2007 - ASBMB
In islet β-cells and INS-1 cells both the high activity of malic enzyme and the correlation of
insulin secretion rates with pyruvate carboxylase (PC) flux suggest that a pyruvate-malate …

[HTML][HTML] How Energy Metabolism Supports Cerebral Function: Insights from 13C Magnetic Resonance Studies In vivo

S Sonnay, R Gruetter, JMN Duarte - Frontiers in neuroscience, 2017 - frontiersin.org
Cerebral function is associated with exceptionally high metabolic activity, and requires
continuous supply of oxygen and nutrients from the blood stream. Since the mid-twentieth …

Glucose, lactate, β-hydroxybutyrate, acetate, GABA, and succinate as substrates for synthesis of glutamate and GABA in the glutamine–glutamate/GABA cycle

L Hertz, DL Rothman - The glutamate/GABA-glutamine cycle: Amino acid …, 2016 - Springer
The glutamine–glutamate/GABA cycle is an astrocytic-neuronal pathway transferring
precursors for transmitter glutamate and GABA from astrocytes to neurons. In addition, the …

Dysfunctional TCA‐cycle metabolism in glutamate dehydrogenase deficient astrocytes

JD Nissen, K Pajęcka, MH Stridh, DM Skytt… - Glia, 2015 - Wiley Online Library
Astrocytes take up glutamate in the synaptic area subsequent to glutamatergic transmission
by the aid of high affinity glutamate transporters. Glutamate is converted to glutamine or …

Regulation of glial metabolism studied by 13C‐NMR

C Zwingmann, D Leibfritz - NMR in Biomedicine: An …, 2003 - Wiley Online Library
Glial metabolism and their metabolic trafficking with neurons are essential parts of neuronal
function, as they modulate, by this means, neuronal activity. Ex vivo and in vitro 13C‐NMR …

Subcellular metabolomics: Isolation, measurement, and applications

S Qin, Y Zhang, Y Tian, F Xu, P Zhang - Journal of Pharmaceutical and …, 2022 - Elsevier
Metabolomics, a technique that profiles global small molecules in biological samples, has
been a pivotal tool for disease diagnosis and mechanism research. The sample type in …

Recent advances in using mass spectrometry for mitochondrial metabolomics and lipidomics-a review

X Liu, G Xu - Analytica chimica acta, 2018 - Elsevier
Metabolomics and lipidomics generally targets a huge number of intermediate and end
products of cellular metabolism in body fluids, tissues, and cells etc. At present, mass …