Results 81 to 90 of about 4,545 (182)

Analysis of serine racemase expression in the CNS of epileptic patients [PDF]

open access: yes, 2010
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  

d-Amino acid oxidase and serine racemase in human brain: normal distribution and altered expression in schizophrenia.

open access: yes, 2007
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

open access: yesJournal of Neurochemistry, Volume 169, Issue 10, October 2025.
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

open access: yes, 2016
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

open access: yesHippocampus, Volume 35, Issue 5, September 2025.
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

Neonatal disruption of serine racemase causes schizophrenia-like behavioral abnormalities in adulthood: clinical rescue by d-serine.

open access: yesPLoS ONE, 2013
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

open access: yesThe FEBS Journal, Volume 292, Issue 17, Page 4395-4417, September 2025.
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]

open access: yes
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  

Cellular distribution of d-serine, serine racemase and d-amino acid oxidase in the rat vestibular sensory epithelia

open access: yes, 2006
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

A phosphoserine phosphatase variant present in the brain of Alzheimer's disease patients favors nuclear mistargeting

open access: yesThe FEBS Journal, Volume 292, Issue 18, Page 4955-4974, September 2025.
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

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