Results 61 to 70 of about 22,217 (292)

NMDA receptor function during senescence: implication on cognitive performance

Frontiers in Neuroscience, 2015
N-methyl-D-aspartate (NMDA) receptors, a family of L-glutamate receptors, play an important role in learning and memory, and are critical for spatial memory. These receptors are tetrameric ion channels composed of a family of related subunits. One of the
Ashok eKumar
doaj   +1 more source

NMDA-receptor activation but not ion flux is required for amyloid-beta induced synaptic depression. [PDF]

PLoS ONE, 2013
Alzheimer disease is characterized by a gradual decrease of synaptic function and, ultimately, by neuronal loss. There is considerable evidence supporting the involvement of oligomeric amyloid-beta (Aβ) in the etiology of Alzheimer's disease ...
Albert Tamburri, Anthony Dudilot, Sara Licea, Catherine Bourgeois, Jannic Boehm   +4 more
doaj   +1 more source

3D In Vitro Glioma‐Neuron‐Astrocyte Biomimetic Composites Recapitulate Key Molecular Mechanisms Linked to Glioblastoma Multiforme Pathophysiology

Advanced Functional Materials, EarlyView.
Glioblastoma multiforme is the most devastating and incurable brain tumor. To better study this disease, a 3D model is developed using a hyaluronic acid‐based hydrogel combined with a multicellular approach. This model recapitulates in vivo brain stiffness, cell‐extracellular matrix and cell‐cell interactions and the tumor's hijacking function with the
Mateo S. Andrade Mier, Esra Türker, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Panthipa Suwannakot, Benedikt Gantert, Abhinav Singh, Vanessa Moessler, Annemarie Sodmann, Nicoletta Murenu, Joachim Schenk, Natascha Schaefer, Torsten Blunk, Aldo R. Boccaccini, Tessa C. Lühmann, Jörg Tessmar, Jeremy M. Crook, Eva Tomaskovic‐Crook, Paul D. Dalton, Gregor Lang, Robert Blum, Reiner Strick, Silvia Budday, Katrin G. Heinze, Carmen Villmann   +26 more
wiley   +1 more source

DMV extrasynaptic NMDA receptors regulate caloric intake in rats

JCI Insight, 2021
Acute high-fat diet (aHFD) exposure induces a brief period of hyperphagia before caloric balance is restored. Previous studies have demonstrated that this period of regulation is associated with activation of synaptic N-methyl-D-aspartate (NMDA ...
Courtney Clyburn, R. Alberto Travagli, Amy C. Arnold, Kirsteen N. Browning   +3 more
doaj   +1 more source

D2HGDH Deficiency Regulates Seizures through GSH/Prdx6/ROS‐Mediated Excitatory Synaptic Activity

Advanced Science, EarlyView.
Downregulating D‐2‐hydroxyglutarate dehydrogenase (D2HGDH) increases epilepsy susceptibility by altering reactive oxygen species (ROS) levels and synaptic function, contributing to oxidative stress in neurons. The acid calcium‐independent phospholipase A2 (aiPLA2) inhibitor MJ33 restores glutathione reduced/glutathione oxidized balance, reducing ROS ...
Zhijuan Zhang, Hui Zhang, Peng Zhang, Rong Li, Jinyu Zhou, Jiyuan Li, Danmei Hu, Rui Huang, Fenglin Tang, Jie Liu, Demei Xu, Chenlu Zhang, Xin Tian, Yuanlin Ma, Patrick Kwan   +14 more
wiley   +1 more source

Generalization of NMDA-Receptor Antagonists to the Discriminative Stimulus Effects of κ-Opioid Receptor Agonists U-50,488H, but Not TRK-820 in Rats

Journal of Pharmacological Sciences, 2006
.: Generalizations of NMDA-receptor antagonists to the discriminative stimulus effects of κ-opioid receptor agonists in rats were examined. Phencyclidine, MK-801, and ketamine, noncompetitive NMDA-receptor antagonists, generalized to the discriminative ...
Tomohisa Mori, Mutsuko Nomura, Kazumi Yoshizawa, Hiroshi Nagase, Toshiko Sawaguchi, Minoru Narita, Tsutomu Suzuki   +6 more
doaj  

Quantifying constraints determining independent activation on NMDA receptors mediated currents from evoked and spontaneous synaptic transmission at an individual synapse [PDF]

arXiv, 2022
A synapse acts on neural transmission through a chemical process called synapses fusion between pre-synaptic and post-synaptic terminals. Presynaptic terminals release neurotransmitters either in response to action potential or spontaneously independent of presynaptic activity.
arxiv  

Roles of Kdm6a and Kdm6b in Regulation of Mammalian Neural Regeneration

Advanced Science, EarlyView.
This study reveals that Kdm6a plays key roles in repressing either peripheral nervous system (PNS) or central nervous system (CNS) axon regeneration, whereas Kdm6b is not involved in regulating CNS axon regeneration. Moreover, both demethylases are able to regulate CNS neuronal survival after injury, but with non‐overlapping mechanisms.
Shu‐Guang Yang, Chang‐Ping Li, Xue‐Wei Wang, Tao Huang, Cheng Qian, Qiao Li, Ling‐Rui Zhao, Si‐Yu Zhou, Chen‐Yun Ding, Rui Nie, Saijilafu, Yu‐Cai Hong, Chang‐Mei Liu, Feng‐Quan Zhou   +13 more
wiley   +1 more source

Activation of NMDA receptors in brain endothelial cells increases transcellular permeability

Fluids and Barriers of the CNS, 2022
Neurovascular coupling is a precise mechanism that induces increased blood flow to activated brain regions, thereby providing oxygen and glucose.
Kyu-Sung Kim, Min Tae Jeon, Eun Seon Kim, Chan Hee Lee, Do-Geun Kim   +4 more
doaj   +1 more source

Radical Pair Model for Magnetic Field Effects on NMDA Receptor Activity [PDF]

arXiv, 2023
The N-methyl-D-aspartate receptor is a prominent player in brain development and functioning. Perturbations to its functioning through external stimuli like magnetic fields can potentially affect the brain in numerous ways. Various studies have shown that magnetic fields of varying strengths affect these receptors.
arxiv