Results 81 to 90 of about 383,376 (207)

Glutamate Receptors: Desensitizing Dimers [PDF]

open access: yesCurrent Biology, 2002
Recent structural studies show, not only how the desensitization of a ligand-gated ion channel with bound agonist can be rationalized in terms of subunit-subunit instability, but also how a previously unknown mode of interaction may provide clues into how the receptor is tetramerically assembled in vivo.
openaire   +2 more sources

Dopamine protects neurons against glutamate-induced excitotoxicity [PDF]

open access: yes, 2013
Glutamate excitotoxicity is responsible for neuronal death in acute neurological disorders including stroke, trauma and neurodegenerative disease. Loss of calcium homeostasis is a key mediator of glutamate-induced cell death.
Abramov, AY   +4 more
core   +1 more source

Glutamate receptor ion channels [PDF]

open access: yesCurrent Opinion in Neurobiology, 2005
Glutamate receptor ion channels mediate excitatory responses at the majority of CNS synapses. They are the only ligand-gated ion channels for which multiple high-resolution crystal structures have been solved. Highlights of information gained from mechanistic studies based on the crystal structures of their ligand-binding domains include explanations ...
openaire   +3 more sources

Control of cleft glutamate concentration and glutamate spill-out by perisynaptic glia: uptake and diffusion barriers.

open access: yesPLoS ONE, 2013
Most glutamatergic synapses in the mammalian central nervous system are covered by thin astroglial processes that exert a dual action on synaptically released glutamate: they form physical barriers that oppose diffusion and they carry specific ...
Jean-Pierre Kessler
doaj   +1 more source

Hypoxic injury of isolated axons is independent of ionotropic glutamate receptors

open access: yesNeurobiology of Disease, 2007
Axonal injury in white matter is an important consequence of many acute neurological diseases including ischemia. A role for glutamate-mediated excitotoxicity is suggested by observations from in vitro and in situ models that AMPA/kainate blockers can ...
Suzanne M. Underhill, Mark P. Goldberg
doaj   +1 more source

Dopamine D2 antagonist-induced striatal Nur77 expression requires activation of mGlu5 receptors by cortical afferents

open access: yesFrontiers in Pharmacology, 2012
Dopamine D2 receptor antagonists modulate gene transcription in the striatum. However, the molecular mechanism underlying this effect remains elusive. Here we used the expression of Nur77, a transcription factor of the orphan nuclear receptor family, as ...
Jérôme eMaheux   +7 more
doaj   +1 more source

ATP as a presynaptic modulator [PDF]

open access: yes, 2000
© 2000 Elsevier Science Inc.There is considerable evidence that ATP acts as a fast transmitter or co-transmitter in autonomic and sensory nerves mostly through activation of ionotropic P2X receptors but also through metabotropic P2Y receptors. By analogy,
Cunha, Rodrigo A., Ribeiro, J. A.
core   +1 more source

The Selective Metabotropic Glutamate 2/3 Receptor Agonist MGS0028 Reverses Isolation Rearing–Induced Abnormal Behaviors in Mice

open access: yesJournal of Pharmacological Sciences, 2012
Isolation-induced abnormal behaviors are useful animal models for assessing potential anti-psychotic drugs. This study examined the effect of MGS0028, a selective metabotropic glutamate 2/3 receptor agonist, on abnormal behaviors such as hyperactivity ...
Yukio Ago   +10 more
doaj   +1 more source

Dysfunctional Light-Evoked Regulation of cAMP in Photoreceptors and Abnormal Retinal Adaptation in Mice Lacking Dopamine D4 Receptors [PDF]

open access: yes, 2002
Dopamine is a retinal neuromodulator that has been implicated in many aspects of retinal physiology. Photoreceptor cells express dopamine D4 receptors that regulate cAMP metabolism.
Grandy, David K.   +6 more
core   +1 more source

Antinociceptive actions of honokiol and magnolol on glutamatergic and inflammatory pain

open access: yesJournal of Biomedical Science, 2009
The antinociceptive effects of honokiol and magnolol, two major bioactive constituents of the bark of Magnolia officinalis, were investigated on animal paw licking responses and thermal hyperalgesia induced by glutamate receptor agonists including ...
Ko Chien-Hsin   +4 more
doaj   +1 more source

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