ArticlePhysiological reports2021
Electrical properties and synaptic transmission in mouse intracardiac ganglion neurons in situ.
Article in Physiological reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Biophysical modelling of intrinsic cardiac nervous system neuronal electrophysiology based on single-cell transcriptomics.The Journal of physiology · 2025Article
- Comparative specialization of intrinsic cardiac neurons in humans, mice and pigs.The Journal of physiology · 2025Article
- Comparative specialization of intrinsic cardiac neurons in humans, mice, and pigs.bioRxiv : the preprint server for biology · 2024Article
- Overexpression of Homer1b/c induces valproic acid resistance in epilepsy.CNS neuroscience & therapeutics · 2023Article
- Recording plasticity in neuronal activity in the rodent intrinsic cardiac nervous system using calcium imaging techniques.Frontiers in synaptic neuroscience · 2023Article
- Electrical properties and synaptic transmission in mouse intracardiac ganglion neurons in situ.Physiological reports · 2021Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The intrinsic cardiac nervous system represents the final site of signal integration for neurotransmission to the myocardium to enable local control of cardiac performance. The electrophysiological characteristics and ganglionic transmission of adult mouse intrinsic cardiac ganglion (ICG) neurons were investigated using a whole-mount ganglion preparation of the excised right atrial ganglion plexus and intracellular microelectrode recording techniques. The passive and active electrical properties of ICG neurons and synaptic transmission including synaptic response strength and efficacy as a function of stimulation frequency were examined. The resting membrane potential and input resistance of ICG neurons were -47.9 ± 4.0 mV and 197.2 ± 81.5 MΩ, respectively. All neurons had somatic action potentials with overshoots of >+15 mV and after-hyperpolarizations having an average of 10 mV amplitude and ~45 ms half duration. Phasic discharge activities were recorded from the majority of neurons studied and several types of excitatory synaptic responses were recorded following inputs from the vagus or interganglionic nerve trunk(s). Most postganglionic neurons (>75%) received a strong, suprathreshold synaptic input and reliably followed high-frequency repetitive nerve stimulation up to at least 50 Hz. Nerve-evoked synaptic transmission was blocked by extracellular Cd
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