Related Experiment Video
Updated: Jun 19, 2026

A Plate-Based Assay for the Measurement of Endogenous Monoamine Release in Acute Brain Slices
Published on: August 11, 2021
Determining the neurotransmitter concentration profile at active synapses
Annalisa Scimemi1, Marco Beato
1Synaptic Physiology Section, Porter Neuroscience Research Center, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892-3701, USA. scimemia@ninds.nih.gov
Understanding neurotransmitter release in the central nervous system is crucial. New experimental and theoretical findings, alongside advanced tools, are overcoming limitations in studying synaptic transmission.
Area of Science:
- Neuroscience
- Cellular Biology
- Biochemistry
Background:
- Inter-neuronal communication relies on neurotransmitter release.
- Central nervous system synapses are difficult to access and study.
- Existing techniques have limitations in describing neurotransmitter release dynamics.
Purpose of the Study:
- To advance the understanding of neurotransmitter release profiles.
- To overcome limitations in studying synaptic transmission.
- To introduce novel tools for analyzing neurotransmitter dynamics.
Main Methods:
- Review of experimental and theoretical findings.
- Description of newly developed tools.
- Analysis of neurotransmitter release mechanisms.
Main Results:
- Progress in understanding neurotransmitter release features.
- Identification of challenges in current methodologies.
- Development of new approaches to study synaptic transmission.
Conclusions:
- New tools and findings are improving the study of neurotransmitter release.
- Overcoming technical limitations is key to understanding synaptic transmission.
- Further research can elucidate complex synaptic mechanisms.
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Because chemical synapses depend on the release of neurotransmitter molecules from synaptic vesicles to pass on their signal, there is an approximately one millisecond delay between when the axon potential reaches the presynaptic terminal and when the neurotransmitter leads to opening of postsynaptic ion channels. Additionally, this signaling is...
The Synapse

