Muscle Necrosis Assay
Muscle Necrosis Assay - Related Videos
02:12
Muscle Necrosis Assay in C. elegans Induced by a Pathogenic Aeromonas Strain
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2026
Source: Chen, Y. et. al., Evaluating Virulence and Pathogenesis of Aeromonas Infection in a Caenorhabditis elegans Model. J. Vis. Exp. (2018)This video demonstrates a muscle necrosis assay in C. elegans (Caenorhabditis elegans) using pathogenic Aeromonas strains. By feeding green fluorescent protein (GFP)-expressing worms on Aeromonas-seeded plates, the assay models bacterial infection and reveals tissue damage through fluorescence imaging. The progressive loss of muscle structure and GFP...
01:16
Necrosis
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2023
Necrosis is considered as an “accidental” or unexpected form of cell death that ends in cell lysis. The first noticeable mention of “necrosis” was in 1859 when Rudolf Virchow used this term to describe advanced tissue breakdown in his compilation titled “Cell Pathology”. Morphological Manifestations of Necrosis Necrotic cells show different types of morphological appearance depending on the type of tissue and infection. In coagulative necrosis, cells become anucleated and die, but their...
09:34
In Vivo Canine Muscle Function Assay
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Cited by 19 •
2011
We describe a minimally-invasive and painless method to measure canine hindlimb muscle strength and muscle response to repeated eccentric contractions.
01:16
Cellular Injury IV: Necrosis
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2026
Necrosis is a form of irreversible cell death caused by severe injury such as ischemia, toxins, or trauma. Unlike programmed cell death, it is an uncontrolled, pathological process that typically provokes inflammation in surrounding tissues.Pathophysiologic ChangesNecrosis begins when cells sustain critical damage, leading to swelling of organelles, particularly mitochondria, and rapid ATP depletion. As energy levels decline, membrane ion pumps fail, leading to calcium influx and eventually,...
09:40
Using Touch-evoked Response and Locomotion Assays to Assess Muscle Performance and Function in Zebrafish
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Cited by 78 •
2016
Zebrafish are an excellent model to study muscle function and disease. During early embryogenesis zebrafish begin regular muscle contractions producing rhythmic swimming behavior, which is altered when the muscle is disrupted. Here we describe a touch-evoked response and locomotion assay to examine swimming performance as a measure of muscle function.
FAQs
Interpretation centers on structural evidence of fiber injury. Disrupted membranes indicate loss of cellular integrity, while reduced fiber organization supports necrotic damage; inflammatory infiltration adds information about the surrounding tissue response. Considering these features together helps distinguish the extent of muscle injury from a single isolated microscopic finding and supports comparisons among experimental conditions.
Quantification can be based on either the number of necrotic fibers or the area of tissue affected. These measures convert microscopic observations into values that can be compared across disease states, experimental groups, or treatments. Reporting both when available can show whether injury is concentrated in individual fibers or distributed across a broader region.
The measurement records tissue injury rather than assigning a single cause. Comparing infected, inflamed, toxic, or treated conditions can reveal differences in damage severity and tissue involvement. This makes the assay useful for evaluating how pathogen-associated injury and host immune responses contribute to muscle damage, especially when interpreted alongside complementary measures of cell injury.
A typical workflow begins with examination of muscle tissue using histological staining or imaging, followed by identification and measurement of necrotic fibers or affected tissue area. Complementary markers of cell damage may add additional evidence. Consistent assessment across samples allows investigators to relate microscopic injury to the experimental condition and to evaluate treatment-associated changes.
This assay is relevant when a study needs a tissue-level measure of skeletal muscle damage associated with infection, inflammation, toxins, or another pathological condition. It can also support treatment comparisons by showing whether affected tissue or necrotic fiber measurements change after an experimental intervention, helping evaluate disease severity, damage, or recovery.
In immunology and infection studies, the readout connects local tissue pathology with host responses. Differences between experimental groups can help assess immune-mediated damage, disease severity, or recovery. The assay therefore complements broader disease analyses by showing how infection and inflammation are reflected directly in skeletal muscle, rather than relying only on systemic or indirect indicators.