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Related Concept Videos

Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

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The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
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Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
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Satellite stem cells or myosatellite cells are quiescent stem cells that Alexander Mauro first identified in 1961. These cells are located between the sarcolemma, the plasma membrane of muscle fibers, and the basal lamina, the connective tissue sheath covering it. These mononucleated cells are activated in response to muscle injury, can transform into myoblasts, and may form or repair muscle fibers. Myosatellite cells can provide additional myonuclei for muscle regeneration or return to a...
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Cardiomyopathy, or CMP, is a group of diseases affecting the myocardial structure, impairing its ability to pump blood effectively. This condition can lead to arrhythmias, heart failure, or sudden cardiac death.Cardiomyopathies are classified into primary and secondary categories:Primary Cardiomyopathy refers to conditions involving only the heart muscle that are often idiopathic (of unknown cause) or genetic. They primarily affect the myocardium without the involvement of other systemic...
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Translation01:31

Translation

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Lesson: Translation
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Disorders of erythrocytes, or red blood cells (RBCs), include a range of conditions affecting their number, shape, or function.
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Updated: Oct 7, 2025

Investigating the Pathogenesis of MYH7 Mutation Gly823Glu in Familial Hypertrophic Cardiomyopathy using a Mouse Model
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Hereditary myopathies associated with hematological abnormalities.

Grayson Beecher1, Mark D Fleming2, Teerin Liewluck1

  • 1Division of Neuromuscular Medicine, Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA.

Muscle & Nerve
|January 5, 2022
PubMed
Summary

Hematological abnormalities, though infrequent, are valuable clues in diagnosing hereditary muscle diseases. Recognizing these blood-related findings aids in refining diagnoses and guiding further investigations for myopathies.

Keywords:
Jordans' anomalyanemiaeosinophiliahereditary myopathyneutropeniasideroblastic anemiathrombocytopenia

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Area of Science:

  • Neurology
  • Hematology
  • Genetics

Background:

  • Diagnosing hereditary muscle diseases is complex, relying on clinical data and various investigations.
  • Hematological testing is an underutilized, cost-effective tool in evaluating hereditary myopathies.
  • Hematological abnormalities can offer crucial diagnostic insights and refine differential diagnoses.

Purpose of the Study:

  • To review hereditary myopathies where hematological features are prominent.
  • To highlight the diagnostic utility of hematological testing in myopathy evaluation.
  • To correlate specific blood abnormalities with distinct hereditary myopathies.

Main Methods:

  • Literature review of hereditary myopathies with associated hematological findings.
  • Analysis of published cases linking hematological abnormalities to specific myopathies.
  • Synthesis of information on anemias, leukocyte disorders, and thrombocytopenia in hereditary myopathies.

Main Results:

  • Diverse hematological abnormalities are linked to hereditary myopathies, including anemias (hemolytic, sideroblastic, megaloblastic), neutropenia, eosinophilia, and thrombocytopenia.
  • Specific examples include hemolytic anemia with glycolytic enzymopathies, sideroblastic anemia with mitochondrial myopathies, neutropenia with Barth syndrome, and Jordans' anomaly in neutral lipid storage diseases.
  • Mild thrombocytopenia is noted in STIM1-related disorders and GNE myopathy.

Conclusions:

  • Hematological abnormalities serve as important diagnostic indicators in hereditary myopathies.
  • Integrating hematological evaluation can significantly improve diagnostic accuracy and patient management.
  • Further research into the interplay between hematology and myology is warranted.