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2 patient data entries in database for clusters 1 and 1 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 | | | 203 | A957V1
| S933R1
| Developmental delay, hypotonia, seizures, muscle weakness elevated transaminases, respiratory deficiency, lactic acidosis, high CSF lactate, elevate pyruvate, high CSF protein, abnormal EEG, abnormal MRI, FTT, hypoglycemia. 37% mtDNA copy number in muscle, 41% mtDNA copy number in blood. | | | n/a | 0.3 | n/a | Tang et al, 2011; [view data] | | 523 | A957V1
| I1185T1
| Myocerebrohepatopathy spectrum (MCHS) disorder. Poor sucking and failure to thrive since, frequent vomiting, developmental regression, developmental delay, emesis, poor weight gain, lethargy. Hypotonia and hepatomegaly. Laboratory tests showed hepatocellular dysfunction and elevated protein and lactate levels in the cerebrospinal fluid. mtDNA depletion. Proximal dominant muscular weakness. All deep tendon reflexes were weak. Myoclonic jerks of the right and left arms were infrequently observed. She died of multiple organ failure caused by hepatic failure at 8 months of age. | | | 0.333 | 0.5 | 0.666 | Montassir et al, 2014; [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: 2
Avg age of onset in displayed cases: 0.3
Std dev in onset in displayed cases: 0.0
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