Mitochondrial Disorders

被引:30
作者
Klopstock, Thomas [1 ,2 ,3 ]
Priglinger, Claudia [4 ]
Yilmaz, Ali [5 ]
Kornblum, Cornelia [6 ]
Distelmaier, Felix [7 ]
Prokisch, Holger [8 ,9 ]
机构
[1] LMU Ludwig Maximilians Univ Munich, Dept Neurol, Friedrich Baur Inst, Munich, Germany
[2] German Ctr Neurodegenerat Dis DZNE Munich, Munich, Germany
[3] Munich Cluster Syst Neurol SyNergy, Munich, Germany
[4] Ludwig Maximilians Univ Munchen, Univ Hosp, Dept Ophthalmol, Munich, Germany
[5] Univ Hosp Munster, Dept Cardiol & Angiol, Munster, Germany
[6] Univ Hosp Bonn, Dept Neurol, Bonn, Germany
[7] Univ Hosp Dusseldorf, Dept Gen Pediat Neonatol & Pediat Cardiol, Dusseldorf, Germany
[8] Helmholtz Zentrum Munich, Inst Neurogenom, Munich, Germany
[9] Tech Univ Munchen TUM, Klinikum Rechts Isar, Inst Human Genet, Munich, Germany
来源
DEUTSCHES ARZTEBLATT INTERNATIONAL | 2021年 / 118卷 / 44期
关键词
IDEBENONE; DIAGNOSIS; DISEASE; MELAS; RISK;
D O I
10.3238/arztebl.m2021.0251
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Mitochondrial disorders are among the most common heritable diseases, with an overall lifetime risk of approxi-mately one in 1500. Nonetheless, their diagnosis is often missed because of their extreme phenotypic and genotypic heteroge-neity. Methods: This review is based on publications retrieved by a selective literature search on the clinical features, genetics, patho-genesis, diagnosis, and treatment of mitochondrial diseases. Results: Pathogenic defects of energy metabolism have been described to date in over 400 genes. Only a small number of these genes lie in the mitochondrial DNA; the corresponding diseases are either maternally inherited or of sporadic distribution. The remaining disease-associated genes are coded in nuclear DNA and cause diseases that are inherited according to Men -delian rules, mostly autosomal recessive. The most severely involved organs are generally those with the highest energy requirements, including the brain, the sensory epithelia, and the extraocular, cardiac, and skeletal musculature. Typical manifes-tations include epileptic seizures, stroke-like episodes, hearing loss, retinopathy, external ophthalmoparesis, exercise intoler-ance, and diabetes mellitus. More than two manifestations of these types should arouse suspicion of a disease of energy metabolism. The severity of mitochondrial disorders ranges from very severe disease, already evident in childhood, to relatively mild disease arising in late adulthood. The diagnosis is usually confirmed with molecular-genetic methods. Symptomatic treat-ment can improve patients' quality of life. The only disease-modifying treatment that has been approved to date is idebenone for the treatment of Leber hereditary optic neuropathy. Intravitreal gene therapy has also been developed for the treatment of this disease; its approval by the European Medicines Agency is pending. Conclusion: Patients with mitochondrial diseases have highly varied manifestations and can thus present to physicians in practi-cally any branch of medicine. A correct diagnosis is the prerequisite for genetic counseling and for the initiation of personalized treatment.
引用
收藏
页码:741 / +
页数:15
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