Edl Muscle Isolation
Edl Muscle Isolation - Related Videos
03:53
Myofiber Isolation: A Technique to Obtain Single Myofibers from Harvested Mouse Extensor Digitorum Longus (EDL) Muscle
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2025
This video demonstrates the isolation of single myofibres from harvested murine Extensor Digitorum Longus (EDL) muscle. The isolated myofibres can be cultured to study myofiber-associated muscle stem cell activity.
14:02
Ex Vivo Assessment of Contractility, Fatigability and Alternans in Isolated Skeletal Muscles
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Cited by 53 •
2012
We describe a method to directly measure muscle force, muscle power, contractile kinetics and fatigability of isolated skeletal muscles in an in vitro system using field stimulation. Valuable information on Ca2+ handling properties and contractile machinery of the muscle can be obtained using different stimulating protocols.
08:42
Myo-mechanical Analysis of Isolated Skeletal Muscle
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Cited by 25 •
2011
To assess the in vivo effects of therapeutic interventions for muscle disease, methods are needed to quantitate force generation and fatigability in treated muscle. We detail an approach to evaluating myo-mechanical properties in explanted mouse hindlimb muscle. This analysis provides a robust approach to quantitating the effects of genetic modification on muscle function, as well as comparison of therapies in mouse models of muscle disease.
11:57
Isolation and Culture of Individual Myofibers and their Satellite Cells from Adult Skeletal Muscle
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Cited by 173 •
2013
Isolation and culture of myofibers is the gold standard in vitro system to study the transition of satellite cells through quiescence, activation and differentiation. Importantly, the single myofiber culture system preserves the myofiber/stem cell association, which is an essential component of the muscle stem cell niche.
14:10
Isometric and Eccentric Force Generation Assessment of Skeletal Muscles Isolated from Murine Models of Muscular Dystrophies
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Cited by 85 •
2013
Muscle function measurements contribute to the evaluation of potential therapeutics for muscle pathology, as well as to the determination of mechanisms underlying physiology of this tissue. We will demonstrate the preparation of the extensor digitorum longus and diaphragm muscles for functional testing. Protocols for isometric and eccentric contractions will be shown, as well as differences in results between dystrophic muscles, representing a pathological state, and wildtype muscles.
FAQs
Careful separation exposes the EDL while limiting damage to its muscle fibers. This preserves the tissue architecture needed for controlled analysis of skeletal muscle structure, contraction, regeneration, and cellular signaling. Excessive disruption could compromise the quality of the isolated preparation and make later observations less representative of the muscle’s biological state.
An intact preparation preserves the relationship among the muscle fibers and the overall muscle structure before further processing. This makes it useful as a consistent ex vivo model, allowing researchers to examine contraction, injury responses, regeneration, and disease-related changes under controlled experimental conditions rather than analyzing a disrupted tissue sample alone.
Enzymatic digestion provides a second level of analysis after the muscle has been removed. It can release individual myofibers or satellite cells from the isolated tissue, enabling studies focused on cellular behavior, regeneration, and signaling. Researchers can therefore choose between examining the intact muscle and investigating specific cell populations derived from it.
The workflow begins by exposing the hindlimb muscle, followed by separating the EDL from surrounding connective tissue. Its tendons are then cut so the intact muscle can be lifted from the preparation. Maintaining careful tissue handling throughout these stages helps minimize fiber damage and preserves the sample for subsequent analysis or enzymatic digestion.
Researchers may select this preparation when they need a controlled ex vivo model for skeletal muscle biology. It can support experiments examining normal structure and contraction, responses to injury, regeneration, cellular signaling, disease-related alterations, or the effects of drugs and genetic manipulation. The isolated tissue provides a defined material for comparing biological responses.
An isolated EDL can provide information at several levels, from whole-muscle structure and contraction to cellular properties after digestion. This range allows investigators to connect tissue-level changes with individual myofibers or satellite cells. In biology research, that comparison helps evaluate how injury, disease, drugs, or genetic manipulation affect skeletal muscle.