ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2019
Extrasynaptic NMDA Receptors on Rod Pathway Amacrine Cells: Molecular Composition, Activation, and Signaling.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 22 citations in OpenAlex.
- Junctional conductance of retinal AII amacrine cell electrical synapses is decreased by NMDA receptors.The Journal of physiology · 2026Article
- Activation of Dopamine D1 Receptors at the Axon Initial Segment-Like Process of Retinal AII Amacrine Cells Modulates Action Potential Firing.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- IK Channel Confers Fine-tuning of Rod Bipolar Cell Excitation and Synaptic Transmission in the Retina.Function (Oxford, England) · 2025Article
- Defining morphologically and genetically distinct GABAergic/cholinergic amacrine cell subtypes in the vertebrate retina.PLoS biology · 2024Article
- The Role of Nrf2/sMAF Signalling in Retina Ageing and Retinal Diseases.Biomedicines · 2023Review
- Functional properties of GABAFrontiers in ophthalmology · 2023Article
- Retinal Glutamate Neurotransmission: From Physiology to Pathophysiological Mechanisms of Retinal Ganglion Cell Degeneration.Life (Basel, Switzerland) · 2022Review
- Dendritic Morphology of an Inhibitory Retinal Interneuron Enables Simultaneous Local and Global Synaptic Integration.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2022Article
- Inhibitory inputs to an inhibitory interneuron: Spontaneous postsynaptic currents and GABAThe European journal of neuroscience · 2022Article
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- Alterations of STEP46 and STEP61 Expression in the Rat Retina with Age and AMD-Like Retinopathy Development.International journal of molecular sciences · 2020Article
- A17 Amacrine Cells and Olfactory Granule Cells: Parallel Processors of Early Sensory Information.Frontiers in cellular neuroscience · 2020Review
- Cell Calcium Imaging as a Reliable Method to Study Neuron-Glial Circuits.Frontiers in neuroscience · 2020Review
- Synaptic inhibition tunes contrast computation in the retina.Visual neuroscience · 2019Article
Corrections and comments
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
Abstract
In the rod pathway of the mammalian retina, axon terminals of glutamatergic rod bipolar cells are presynaptic to AII and A17 amacrine cells in the inner plexiform layer. Recent evidence suggests that both amacrines express NMDA receptors, raising questions concerning molecular composition, localization, activation, and function of these receptors. Using dual patch-clamp recording from synaptically connected rod bipolar and AII or A17 amacrine cells in retinal slices from female rats, we found no evidence that NMDA receptors contribute to postsynaptic currents evoked in either amacrine. Instead, NMDA receptors on both amacrine cells were activated by ambient glutamate, and blocking glutamate uptake increased their level of activation. NMDA receptor activation also increased the frequency of GABAergic postsynaptic currents in rod bipolar cells, suggesting that NMDA receptors can drive release of GABA from A17 amacrines. A striking dichotomy was revealed by pharmacological and immunolabeling experiments, which found GluN2B-containing NMDA receptors on AII amacrines and GluN2A-containing NMDA receptors on A17 amacrines. Immunolabeling also revealed a clustered organization of NMDA receptors on both amacrines and a close spatial association between GluN2B subunits and connexin 36 on AII amacrines, suggesting that NMDA receptor modulation of gap junction coupling between these cells involves the GluN2B subunit. Using multiphoton Ca
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.