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3 patient data entries in database for mutation A889T. Entry
# | | Mutations | | allele 1 | allele 2 |
| Clinical representation | Symptoms | Age group | Age of onset | Age of patient | Age of death | Reference | | | 136 | A889T1
| R579W2
| Onset at age 30 with ptosis, later development of ataxia orthostatic dizziness, cataracts, GI dysmotility with diarrhea and constipation. | | - | movement disorder (ataxia) | |
| | 30 | n/a | n/a | Filosto et al, 2003; [view data] | | 238 | | A889T1
E1143G
| Presented with ataxia and transient diplopia at age 25 and showed ptosis, external ophthalmoplegia, nystagmus, had a mild tremor of outstretched hands, marked dysmetria, Romberg sign, severe ataxia, was unable to stand on one foot, multiple mtDNA deletions in muscle. | | - | movement disorder (ataxia) | |
| - | external ophthalmoplegia | |
| | n/a | 25 | n/a | Hisama et al, 2005; [view data] | | 251 | A889T1
E1143G
| | presented at age 7 years with gait difficulty and pes cavus. He developed upper extremity tremor, scanning speech, and horizontal nystagmus by age 15. at age 20 showed ptosis, external ophthalmoplegia, mildly decreased vibration and pin prick sensation, intention tremor, absent ankle and brachioradialis reflexes, and ataxic gait. Over the next 5 years, he experienced progression of the ptosis and ophthalmoplegia. The tremor became disabling at rest and with action, and he became wheelchair-dependent. | | - | movement disorder (ataxia) | |
| - | external ophthalmoplegia | |
| | 7 | 20 | n/a | Hisama et al, 2005; [view data] |
1-5 pathogenic cluster assignment of mutations. Mutations displayed without a superscript number are outside of the assigned pathogenic clusters. See cluster definitions for details. Number of displayed patient cases: 3
Avg age of onset in displayed cases: 20.7
Std dev in onset in displayed cases: 9.9
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