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Mitochondrial diseases
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DOI：10.1038/nrdp.2016.80.png)
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Mitochondrial diseases are a group of genetic disorders that are characterized by defects in oxidative phosphorylation and caused by mutations in genes in the nuclear DNA (nDNA) and mitochondrial DNA (mtDNA) that encode structural mitochondrial proteins or proteins involved in mitochondrial function. Mitochondrial diseases are the most common group of inherited metabolic disorders and are among the most common forms of inherited neurological disorders. One of the challenges of mitochondrial diseases is the marked clinical variation seen in patients, which can delay diagnosis. However, advances in next-generation sequencing techniques have substantially improved diagnosis, particularly in children. Establishing a genetic diagnosis allows patients with mitochondrial diseases to have reproductive options, but this is more challenging for women with pathogenetic mtDNA mutations that are strictly maternally inherited. Recent advances in in vitro fertilization techniques, including mitochondrial donation, will offer a better reproductive choice for these women in the future. The treatment of patients with mitochondrial diseases remains a challenge, but guidelines are available to manage the complications of disease. Moreover, an increasing number of therapeutic options are being considered, and with the development of large cohorts of patients and biomarkers, several clinical trials are in progress.
Keyword:
PROGRESSIVE EXTERNAL OPHTHALMOPLEGIA
HEREDITARY OPTIC NEUROPATHY
IMPAIR MTDNA REPLICATION
TRANSFER-RNA SYNTHETASE
DNA DELETIONS
PRONUCLEAR TRANSFER
ADULT PATIENTS
MOUSE MODEL
MUTATIONS
DEFICIENCY
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