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3 patient data entries in database for clusters W748S and 4 in age group "infantile". Entry
# | | Mutations | | allele 1 | allele 2 |
| Clinical representation | Symptoms | Age group | Age of onset | Age of patient | Age of death | Reference | | | 229 | W748S5
E1143G
| R232H4
| Alpers, age of onset 6 months, age of death 13 months. 41% mtDNA copy number. During the first 6 months of life, he was considered healthy, but was irritable with colic-like symptoms. failure to thrive, delayed motor development. myoclonus. leftsided hemiparesis. | | | 0.5 | n/a | 1.08 | Kollberg et al, 2006; [view data] | | 700 | L244P4
| W748S5
E1143G
| epilepsia partialis continua at 10 months, pyramido-cerebellar syndrome 19 months, myoclonic seizures when 4.5 years old. myoclonic jerks. At the age of 8 years, a brain CT scan showed atrophy of the right occipital cortex. signs and symptoms of liver dysfunction. chronic progressive liver disease. diffuse cortical atrophy. myoclonic epilepsy became resistant to any medication, myoclonic status along with episodes of respiratory failure. His clinical condition rapidly worsened and led to a vegetative state. | | | 0.8 | 9 | 15 | Simonati et al, 2003b; [view data] | | 701 | L244P4
| W748S5
E1143G
| myoclonic fits of the right limbs and then a dystonic-ataxic syndrome at the age of 5 months. He had a rapid clinical deterioration. At age 6 months, a brain CT scan showed diffuse cortical atrophy. acute hepatic failure. | | | 0.42 | n/a | 1.1 | Simonati et al, 2003b; [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: 0.6
Std dev in onset in displayed cases: 0.2
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