Maturation of neuromuscular transmission during early development in zebrafish.
@article{Nguyen1999MaturationON,
title={Maturation of neuromuscular transmission during early development in zebrafish.},
author={Peter V. Nguyen and Laurent Aniksztejn and Stefano Catarsi and Pierre Drapeau},
journal={Journal of neurophysiology},
year={1999},
volume={81 6},
pages={
2852-61
}
}We have examined the rapid development of synaptic transmission at the neuromuscular junction (NMJ) in zebrafish embryos and larvae by patch-clamp recording of spontaneous miniature endplate currents (mEPCs) and single acetylcholine receptor (AChR) channels. Embryonic (24-36 h) mEPCs recorded in vivo were small in amplitude (<50 pA). The rate of mEPCs increased in larvae (3.5-fold increase measured by 6 days), and these mEPCs were mostly of larger amplitude (10-fold on average) with (</=5-fold…
Figures and Tables from this paper
41 Citations
Limits to the development of fast neuromuscular transmission in zebrafish.
- BiologyJournal of neurophysiology
- 2001
Zebrafish embryos have small and slow miniature end-plate currents (mEPCs), whereas only a few days later larval mEPCs are an order of magnitude larger and faster, being among the fastest of all…
Physiological properties of zebrafish embryonic red and white muscle fibers during early development.
- BiologyJournal of neurophysiology
- 2000
It is concluded that at early developmental stages the physiological properties of ER and EW muscle are similar but not identical and are optimized to the patterns of swimming observed at these stages.
Nicotinic acetylcholine receptors (nAChRs) at zebrafish red and white muscle show different properties during development
- BiologyDevelopmental neurobiology
- 2016
The findings provide a developmental profile of mEPC properties from red and white fibers in embryonic and larval zebrafish, and reveal previously unknown differences between the NMJs of these muscle fibers.
Embryonic ethanol exposure alters synaptic properties at zebrafish neuromuscular junctions.
- BiologyNeurotoxicology and teratology
- 2011
Motoneuron Activity Patterns Related to the Earliest Behavior of the Zebrafish Embryo
- BiologyThe Journal of Neuroscience
- 2000
It is suggested that spontaneous contractions of the zebrafish embryo are mediated by an early spinal circuit that is independent of the main neurotransmitter systems and descending hindbrain projections that are required for locomotion in the mature vertebrate spinal cord.
Activation of ionotropic glutamate receptors on peripheral axons of primary motoneurons mediates transmitter release at the zebrafish NMJ.
- BiologyJournal of neurophysiology
- 2004
Results suggest the presence of AMPA and NMDA receptors in association with motoneuron axons of larval zebrafish.
Recovery from Open Channel Block by Acetylcholine during Neuromuscular Transmission in Zebrafish
- BiologyThe Journal of Neuroscience
- 2000
A simple kinetic model of the AChR that includes an open channel-blocking step accounted for single channel results, as well as the experimentally observed slowing of the time course of mEPCs recorded at a hyperpolarized compared with a depolarized potential.
Development of ionic currents of zebrafish slow and fast skeletal muscle fibers.
- BiologyJournal of neurobiology
- 2006
Findings indicate that there are significant differences in the ionic current profiles between the red and white fibers and that a number of changes occur in the steady-state and kinetic properties of Na+ and K+ currents of developing zebrafish skeletal muscle fibers, with the most dramatic changes occurring around the end of the first day following egg fertilization.
Sodium and potassium currents of larval zebrafish muscle fibres
- BiologyJournal of Experimental Biology
- 2004
It is suggested that the properties of the inward sodium and outward potassium currents permit high frequency firing in response to a pulsatile depolarizing input of the kind expected in fast swimming, whilst safeguarding against tetany during a strong depolarization.
References
SHOWING 1-10 OF 48 REFERENCES
Development of the myotomal neuromuscular junction in Xenopus laevis: an electrophysiological and fine-structural study.
- BiologyDevelopmental biology
- 1977
Initial events in the formation of neuromuscular synapse: rapid induction of acetylcholine release from embryonic neuron.
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 1986
A rapid appearance of pulsatile inward currents at the muscle cell after the neurite-muscle contact is found, which may be responsible for an early induction of muscle activity and serve as a signal for the establishment of synaptic contact.
The acetylcholine channel open time in chick muscle is not decreased following innervation.
- BiologyThe Journal of physiology
- 1980
In anterior latissimus dorsi and intercostal muscle fibres of 4‐ to 18‐week posthatched chicks, fluctuation analysis and synaptic current decays indicate that the channel open time of mature chick endplate receptors is as long as that of embryonic synaptic receptors in vitro.
Muscle activity and the loss of electrical coupling between striated muscle cells in Xenopus embryos
- BiologyThe Journal of neuroscience : the official journal of the Society for Neuroscience
- 1983
The results suggest that some consequence of repeated cholinergic activation, other than contraction, stimulates the loss of gap junctions between striated muscle cells during development, which may be required for neural control of subsequent muscle differentiation.
Studies of nerve-muscle interactions in Xenopus cell culture: analysis of early synaptic currents
- BiologyThe Journal of neuroscience : the official journal of the Society for Neuroscience
- 1989
It is shown that spontaneous and nerve-evoked synaptic currents during the initial period of nerve-muscle contact in Xenopus cell cultures are similar to those observed at naturally occurring synapses and the transition from low- to high-efficacy transmission during the early phase of contact may reflect the process of selective adhesion between the cells, and thus signify the formation of specific synapse.
Spontaneous release of transmitter from growth cones of embryonic neurones
- BiologyNature
- 1983
It is reported that single-channel activity resembling that of muscle acetylcholine receptor channels was induced when the probe was positioned near the growth cones of 50% of the neurones, suggesting the spontaneous release of acetylCholine (ACh) from these growth cones.
Acetylcholine receptor epsilon-subunit deletion causes muscle weakness and atrophy in juvenile and adult mice.
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 1996
It is demonstrated that postnatal incorporation into the end plate of epsilon-subunit containing AChRs is essential for normal development of skeletal muscle.
Time course of the development of motor behaviors in the zebrafish embryo.
- BiologyJournal of neurobiology
- 1998
It is suggested that the spontaneous contractions result from activation of a primitive spinal circuit, while touch and swimming require additional hindbrain inputs to elicit mature locomotor behaviors.
Comparative development of end‐plate currents in two muscles of Xenopus laevis.
- BiologyThe Journal of physiology
- 1986
The development of miniature end‐plate currents was studied in the superior oblique and interhyoideus muscles of Xenopus laevis and shows that each muscle possesses its own characteristic programme of end-plate current development.









