Metabolic and mitochondrial myopathies
Lydia J Sharp1, Ronald G Haller2
1Department of Neurology and Neurotherapeutics, University of Texas Southwestern Medical Center, 5323 Harry Hines Boulevard, Dallas, TX 75390, USA; Neuromuscular Center, Institute for Exercise and Environmental Medicine, Texas Health Presbyterian Hospital, 7232 Greenville Avenue, Dallas, TX 75231, USA.
Metabolic and mitochondrial myopathies impair skeletal muscle energy production, causing fatigue or weakness. This review covers their clinical features, diagnosis, and management, highlighting recent advancements.
Area of Science:
- Neurology
- Muscle Physiology
- Biochemistry
Background:
- Metabolic and mitochondrial myopathies are genetic disorders affecting skeletal muscle energy production.
- These conditions lead to a spectrum of clinical manifestations, impacting patient mobility and quality of life.
Observation:
- Patients often experience premature muscle fatigue, myalgia, rhabdomyolysis, and myoglobinuria during exertion.
- A subset of these disorders presents with predominant muscle weakness as the primary symptom.
Findings:
- This review synthesizes current clinical features, diagnostic approaches, and therapeutic strategies for metabolic and mitochondrial myopathies.
- Emphasis is placed on recent literature and emerging research in the field.
Implications:
- Improved understanding of these myopathies aids in earlier diagnosis and more effective patient management.
- Advances in research may lead to novel therapeutic targets for skeletal muscle energy production disorders.
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