Spinal Motor Neurons
Spinal Motor Neurons - Related Videos
02:16
Differentiation of Spinal Cord Neural Progenitor Cells into Motor Neurons
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2025
This video showcases a method for differentiating spinal cord neural progenitor cells (NPCs) into motor neurons. It details the culturing process of the NPCs on a coated culture plate using specialized media enriched with specific inhibitors aimed at facilitating NPC differentiation into mature motor neurons.
07:57
Isolation and Culture of Oculomotor, Trochlear, and Spinal Motor Neurons from a Mouse Embryo
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2025
The video demonstrates the isolation of oculomotor, trochlear, and spinal motor neurons from a transgenic mouse embryo. The embryo expresses motor neurons labeled with a green fluorescent protein (GFP) for easy visualization and identification. The motor neurons are surgically isolated under a fluorescence microscope and maintained in a culture medium.
08:24
Zebrafish In Situ Spinal Cord Preparation for Electrophysiological Recordings from Spinal Sensory and Motor Neurons
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Cited by 3 •
2017
This manuscript describes methods for electrophysiological recordings from spinal neurons of zebrafish embryos and larvae. The preparation maintains neurons in situ and often involves minimum dissection. These methods allow for the electrophysiological study of a variety of spinal neurons, from the initial electrical excitability acquisition through the early larval stages.
11:46
Production of RNA for Transcriptomic Analysis from Mouse Spinal Cord Motor Neuron Cell Bodies by Laser Capture Microdissection
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Cited by 9 •
2014
High-quality total RNA has been prepared from cell bodies of mouse spinal cord motor neurons by laser capture microdissection after staining spinal cord sections with Azure B in 70% ethanol. Sufficient RNA (~40-60 ng) is recovered from 3,000-4,000 motor neurons to allow downstream RNA analysis by RNA-seq and qRT-PCR.
03:31
Intramuscular Injections Along the Motor End Plates to Shuttle Tracers Directly into Rat Motor Neurons
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2025
Source: Mohan, R., et al. Intramuscular Injections Along the Motor End Plates: A Minimally Invasive Approach to Shuttle Tracers Directly into Motor Neurons. J. Vis. Exp. (2015)This video demonstrates the targeted delivery of a fluorescent neuronal tracer into motor neurons via intramuscular injection at the motor end plates (MEPs). It outlines the steps involved in preparing the rat, injecting the tracer, and assessing labeled motor neurons for neurotherapeutic potential.
FAQs
Their output reflects the combined influence of commands descending from the brain, sensory information, and signals from spinal interneurons. This integration allows pharmacological studies to examine how a compound changes motor control at the level of neuronal excitability or synaptic signaling. Distinguishing these input pathways helps relate altered spinal processing to changes in muscle movement, spasms, or paralysis.
Drug and toxin effects can occur through changes in motor-neuron excitability, communication at synapses, or transmission between the neuron and muscle. These represent distinct points at which motor function may be modified. Separating them helps researchers determine whether an observed effect originates within spinal signaling, among connected neurons, or at the neuromuscular junction.
After signals travel along motor-neuron axons, acetylcholine activates the neuromuscular junction, linking neuronal activity to skeletal-muscle contraction. Pharmacological disruption at this stage can therefore produce an outcome different from altered excitability or synaptic input within the spinal cord. Examining both locations helps clarify whether a compound affects central motor control, muscle activation, or the transition between them.
Drugs, toxins, and disease processes may all disturb motor function, but they can act through different combinations of excitability, synaptic signaling, and neuromuscular transmission. Studying these changes in relation to spinal motor neurons provides a framework for comparing their effects without treating every movement abnormality as equivalent. This distinction supports more focused investigation of paralysis, spasms, and motor impairment.
This research can address disorders and symptoms involving abnormal movement or loss of motor function, including muscle spasms, paralysis, pain, and neurodegenerative disorders. The relevance comes from the neurons' position between integrated spinal and brain-related signals and skeletal-muscle activation. Examining how pharmacological agents modify these pathways can connect cellular effects with clinically important motor outcomes.
Pharmacological studies can use the motor-neuron pathway to evaluate strategies that modify motor function or protect motor neurons. Investigators can consider whether an intervention changes neuronal excitability, synaptic communication, or neuromuscular transmission, then relate that action to movement-related outcomes. This organization helps connect a drug's site of action with its potential value in treating motor dysfunction or preserving motor control.