Autosomal recessive progressive external ophthalmoplegia
General Information (adopted from Orphanet):
Synonyms, Signs: |
PROGRESSIVE EXTERNAL OPHTHALMOPLEGIA, AUTOSOMAL RECESSIVE PEOB arPEO |
Number of Symptoms | 63 |
OrphanetNr: | 254886 |
OMIM Id: |
258450
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ICD-10: |
H49.4 |
UMLs: |
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MeSH: |
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MedDRA: |
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Snomed: |
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Prevalence, inheritance and age of onset:
Prevalence: | No data available. |
Inheritance: |
Autosomal recessive [Orphanet] |
Age of onset: |
All ages [Orphanet] |
Disease classification (adopted from Orphanet):
Parent Diseases: |
Multiple mitochondrial DNA deletion syndrome
-Rare developmental defect during embryogenesis -Rare genetic disease -Rare neurologic disease |
Symptom Information:
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(HPO:0010628) | Facial palsy | 146 / 7739 | ||||
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(HPO:0007641) | Dyschromatopsia | rare [HPO:skoehler] | 19 / 7739 | |||
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(HPO:0000648) | Optic atrophy | rare [HPO:skoehler] | 238 / 7739 | |||
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(HPO:0000508) | Ptosis | 459 / 7739 | ||||
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(HPO:0000590) | Progressive external ophthalmoplegia | 23 / 7739 | ||||
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(HPO:0000505) | Visual impairment | rare [HPO:skoehler] | 297 / 7739 | |||
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(HPO:0002403) | Positive Romberg sign | 11 / 7739 | ||||
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(HPO:0002063) | Rigidity | 92 / 7739 | ||||
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(HPO:0006886) | Impaired distal vibration sensation | 8 / 7739 | ||||
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(HPO:0001284) | Areflexia | 198 / 7739 | ||||
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(HPO:0001260) | Dysarthria | 329 / 7739 | ||||
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(HPO:0003376) | Steppage gait | 41 / 7739 | ||||
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(HPO:0001618) | Dysphonia | 28 / 7739 | ||||
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(HPO:0001288) | Gait disturbance | 318 / 7739 | ||||
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(HPO:0003434) | Sensory ataxic neuropathy | 4 / 7739 | ||||
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(HPO:0002922) | Increased CSF protein | 27 / 7739 | ||||
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(HPO:0000716) | Depression | 99 / 7739 | ||||
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(HPO:0006858) | Impaired distal proprioception | 4 / 7739 | ||||
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(HPO:0000712) | Emotional lability | 44 / 7739 | ||||
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(HPO:0003390) | Sensory axonal neuropathy | 26 / 7739 | ||||
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(HPO:0001265) | Hyporeflexia | 208 / 7739 | ||||
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(HPO:0002015) | Dysphagia | 301 / 7739 | ||||
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(HPO:0002067) | Bradykinesia | 62 / 7739 | ||||
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(HPO:0002070) | Limb ataxia | 41 / 7739 | ||||
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(HPO:0002066) | Gait ataxia | 327 / 7739 | ||||
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(HPO:0001300) | Parkinsonism | 75 / 7739 | ||||
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(HPO:0001761) | Pes cavus | 225 / 7739 | ||||
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(HPO:0001634) | Mitral valve prolapse | 69 / 7739 | ||||
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(HPO:0001637) | Abnormality of the myocardium | 76 / 7739 | ||||
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(HPO:0001653) | Mitral regurgitation | 64 / 7739 | ||||
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(HPO:0001638) | Cardiomyopathy | Occasional [HPO] | 192 / 7739 | |||
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(HPO:0008180) | Mildly elevated creatine phosphokinase | 28 / 7739 | ||||
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(HPO:0003236) | Elevated serum creatine phosphokinase | 214 / 7739 | ||||
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(HPO:0002747) | Respiratory insufficiency due to muscle weakness | 48 / 7739 | ||||
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(HPO:0003548) | Subsarcolemmal accumulations of abnormally shaped mitochondria | 9 / 7739 | ||||
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(HPO:0003689) | Multiple mitochondrial DNA deletions | 12 / 7739 | ||||
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(HPO:0003688) | Decreased activity of cytochrome C oxidase in muscle tissue | 20 / 7739 | ||||
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(HPO:0003546) | Exercise intolerance | 62 / 7739 | ||||
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(HPO:0003200) | Ragged-red muscle fibers | 37 / 7739 | ||||
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(HPO:0003557) | Increased variability in muscle fiber diameter | 24 / 7739 | ||||
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(HPO:0003701) | Proximal muscle weakness | 105 / 7739 | ||||
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(HPO:0003713) | Muscle fiber necrosis | 8 / 7739 | ||||
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(HPO:0003737) | Mitochondrial myopathy | 18 / 7739 | ||||
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(HPO:0002460) | Distal muscle weakness | 122 / 7739 | ||||
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(HPO:0003458) | EMG: myopathic abnormalities | 38 / 7739 | ||||
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(HPO:0003700) | Generalized amyotrophy | 39 / 7739 | ||||
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(OMIM) | [DEL]EMG shows myopathic changes | 27 / 7739 | ||||
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(OMIM) | Limb muscle weakness, upper and lower | 3 / 7739 | ||||
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(OMIM) | Multiple mitochondrial DNA (mtDNA) deletions seen on muscle biopsy | 3 / 7739 | ||||
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(OMIM) | Fibrillations | 3 / 7739 | ||||
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(OMIM) | Decreased activity of cytochrome c oxidase seen on muscle biopsy | 3 / 7739 | ||||
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(OMIM) | Necrotic and atrophic fibers with centralized nuclei seen on muscle biopsy | 1 / 7739 | ||||
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(OMIM) | Increased variation in fiber size seen on muscle biopsy | 1 / 7739 | ||||
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(HPO:0000007) | Autosomal recessive inheritance | 2538 / 7739 | ||||
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(OMIM) | Decreased sensory nerve action potentials | 3 / 7739 | ||||
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(OMIM) | Mitochondrial myopathy, severe | 1 / 7739 | ||||
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(HPO:0003812) | Phenotypic variability | 129 / 7739 | ||||
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(HPO:0003581) | Adult onset | Common [HPO] | 117 / 7739 | |||
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(OMIM) | Subsarcolemmal accumulations of abnormally shaped mitochondria seen with electronmicroscopy | 1 / 7739 | ||||
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(OMIM) | Myotonic discharges | 1 / 7739 | ||||
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(OMIM) | [DEL]Ragged red fibers seen on muscle biopsy | 10 / 7739 | ||||
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(MedDRA:10057689) | Acquired claw toe | 4 / 7739 | ||||
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(OMIM) | Distal sensory loss of vibration and proprioception | 1 / 7739 |
Associated genes:
ClinVar (via SNiPA)
Gene symbol | Variation | Clinical significance | Reference |
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Additional Information:
Description: (OMIM) |
Progressive external ophthalmoplegia (PEO) is characterized by multiple mitochondrial DNA (mtDNA) deletions in skeletal muscle. The most common clinical features include adult-onset of weakness of the external eye muscles and exercise intolerance. Additional symptoms are variable, and may ... |
Clinical Description OMIM |
Bohlega et al. (1996) reported 6 patients in 2 unrelated families with autosomal recessive ophthalmoplegia and cardiomyopathy. The families derived from the eastern Arabian peninsula and the patients presented with childhood-onset progressive external ophthalmoplegia, mild facial and proximal ... |
Molecular genetics OMIM |
In affected members of 2 unrelated Belgian families with arPEO reported by Van Goethem et al. (1997), Van Goethem et al. (2001) identified compound heterozygous mutations in the POLG gene (174763.0002-174763.0004). Lamantea et al. (2002) identified ... |