Results 81 to 90 of about 4,545 (182)
Analysis of serine racemase expression in the CNS of epileptic patients [PDF]
Serine racemase is a pyridoxal-5'-phosphate dependent enzyme that converts L-serine to D-serine. D-serine is a recognized physiological co-agonist of N-methyl-D-aspartate type of glutamate receptors - key receptors that participate in the ...
Vorlová, Barbora
core
The N-methyl-D-aspartate receptor co-agonist d-serine is synthesized by serine racemase and degraded by D-amino acid oxidase. Both D-serine and its metabolizing enzymes are implicated in N-methyl-D-aspartate receptor hypofunction thought to occur in ...
Burnet, PW +15 more
core +1 more source
Astrocytes as Active Participants in Memory
This review explores how astrocytes support memory by modulating neurotransmitters, interacting with biomolecules, and taking part in synaptic plasticity. We discuss their role across various brain regions and spotlight cutting‐edge methods—such as Ca2+ imaging, optogenetics, chemogenetics, and engram analysis—that have revolutionized our ability to ...
Shay Meron Asher, Inbal Goshen
wiley +1 more source
Human serine racemase is allosterically modulated by NADH and reduced nicotinamide derivatives
Serine racemase catalyzes both the synthesis and the degradation of d-serine, an obligatory co-agonist of the glutamatergic NMDA receptors. It is allosterically controlled by adenosine triphosphate (ATP), which increases its activity around 7-fold ...
DELLAFIORA, Luca +6 more
core +1 more source
Differential Astrocyte‐Supplied NMDAR Co‐Agonist for CA1 Versus Dentate Gyrus Long‐Term Potentiation
ABSTRACT In the hippocampus, there is a region‐ and synapse‐specific N‐methyl‐D‐aspartate receptor (NMDAR) co‐agonist preference for induction of long‐term potentiation (LTP). Schaffer collateral (SC)‐CA1 synapses, enriched in GluN2A‐containing NMDARs, favor D‐serine, while medial perforant path (MPP) to dentate gyrus (DG) synapses that are rich in ...
Shruthi Sateesh, Wickliffe C. Abraham
wiley +1 more source
BackgroundD-Serine, an endogenous co-agonist of the N-methyl-D-aspartate (NMDA) receptor, is synthesized from L-serine by serine racemase (SRR). Given the role of D-serine in both neurodevelopment and the pathophysiology of schizophrenia, we examined ...
Hiroko Hagiwara +2 more
doaj +1 more source
d‐amino acids: new functional insights
This review explores recent advances in understanding d‐amino acids (d‐AAs) and their pivotal roles across organisms, from plants to humans. d‐AAs have been implicated in key physiological processes, including cancer, inflammation, immune regulation, kidney disease, diabetes, and nervous system function.
Loredano Pollegioni +5 more
wiley +1 more source
Fabrication and use of D-serine biosensors for characterising D-serine signalling in rat brain [PDF]
D-serine is a co-agonist at NMDA receptors in the brain but the study of this amino acid is restricted by current techniques. I have designed highly sensitive D-serine biosensors that permit accurate real-time recordings of D-serine in the brain in a ...
Bibi, Shakila
core
Glutamate is the main neurotransmitter at the synapses between sensory cells and primary afferents in the peripheral vestibular system. Evidence has recently been obtained demonstrating that the atypical amino acid d-serine is the main endogenous co ...
Mothet, Jean-Pierre +2 more
core +1 more source
l‐serine levels in the human brain are maintained by the phosphorylated pathway, a three‐step process catalyzed by phosphoglycerate dehydrogenase (PHGDH), phosphoserine aminotransferase (PSAT) and phosphoserine phosphatase (PSP). These enzymes assemble in a metabolon called the serinosome. The double R27S/D32G PSP variant was identified in the brain of
Silvia Sacchi +10 more
wiley +1 more source

