Role of Mitochondrial Dysfunction in Related Diseases-A Review
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Abstract
Background: Mitochondrial dysfunction (MD) is increasingly recognized for its role in a wide array of diseases, extending beyond primary mitochondrial diseases (PMDs) to include secondary mitochondrial diseases (SMDs) and a broad spectrum of neurodegenerative, cardiovascular, metabolic, and oncological disorders. This growing awareness underscores the need for a comprehensive review of the mechanisms underlying MD, its clinical implications, and emerging therapeutic strategies.
Objective: To synthesize current knowledge on the pathogenesis of diseases associated with MD, delineate the distinction between PMDs and SMDs, explore the genetic and environmental factors contributing to MD, and assess the potential of novel therapeutic approaches targeting mitochondrial dysfunction.
Methods: A narrative review was conducted through a structured search of PubMed, Scopus, Web of Science, and Google Scholar, focusing on articles published up to April 2023. Keywords related to mitochondrial dysfunction and its implications across various diseases were used to identify relevant studies. Inclusion criteria targeted original research, reviews, and meta-analyses published in English that contributed to understanding MD's role in disease pathogenesis and treatment. Data extraction and synthesis were performed to highlight key findings, mechanisms, and therapeutic strategies.
Results: The review emphasizes the critical role of mitochondrial dysfunction in the pathogenesis of a wide range of diseases. It identifies specific mtDNA mutations contributing to PMDs and highlights how SMDs arise from mitochondrial impairment secondary to other conditions. The synthesis of findings points to oxidative stress, impaired ATP production, and altered mitochondrial dynamics as central to MD's impact on cellular and systemic health. Additionally, the review explores emerging therapies, including mitochondrial-targeted antioxidants, gene therapy, and metabolic interventions, underscoring their potential in managing MD-related diseases.
Conclusion: Mitochondrial dysfunction is a pivotal factor in the etiology of numerous diseases, with genetic mutations and environmental influences contributing to its development and progression. Understanding these complex mechanisms is essential for devising effective therapeutic interventions. While significant advances have been made, further research is needed to fully exploit the therapeutic potential of targeting mitochondrial dysfunction.
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