Symptom Information: Sort according to HPO 

1
(HPO:0001254) Lethargy 23022099 IBIS 104 / 7739
2
(HPO:0001265) Hyporeflexia 23022099 IBIS 208 / 7739
3
(HPO:0001284) Areflexia 23022099 IBIS 198 / 7739
4
(HPO:0001302) Pachygyria 18835491 IBIS 60 / 7739
5
(HPO:0001308) Tongue fasciculations rare [HPO:skoehler] 23022099 IBIS 18 / 7739
6
(HPO:0001336) Myoclonus rare [HPO:skoehler] 23022099 IBIS 115 / 7739
7
(HPO:0002151) Increased serum lactate 18835491 IBIS 92 / 7739
8
(HPO:0002490) Increased CSF lactate 18835491 IBIS 28 / 7739
9
(HPO:0003128) Lactic acidosis 23022099 IBIS 116 / 7739
10
(HPO:0003429) CNS hypomyelination 18835491 IBIS 21 / 7739
11
(HPO:0006829) Severe muscular hypotonia 23022099 IBIS 29 / 7739
12
(HPO:0009830) Peripheral neuropathy rare [HPO:skoehler] 23022099 IBIS 206 / 7739
13
(OMIM) Respiratory insufficiency requiring mechanical ventilation (1 family) 23022099 IBIS 1 / 7739
14
(OMIM) Equinus foot deformities 18835491 IBIS 1 / 7739
15
(HPO:0001252) Muscular hypotonia 23022099 IBIS 990 / 7739
16
(HPO:0008947) Infantile muscular hypotonia 23022099 IBIS 482 / 7739
17
(OMIM) Floppiness 23022099 IBIS 1 / 7739
18
(OMIM) Little spontaneous limb movement 23022099 IBIS 1 / 7739
19
(OMIM) Prominent sulci 18835491 IBIS 1 / 7739
20
(OMIM) Sural nerve biopsy shows lack of myelinated fibers (1 patient) 18835491 IBIS 1 / 7739
21
(HPO:0001522) Death in infancy 23022099 IBIS 275 / 7739
22
(HPO:0003198) Myopathy 23022099 IBIS 151 / 7739
23
(HPO:0001760) Abnormality of the foot 18835491 IBIS 96 / 7739
24
(HPO:0007239) Congenital encephalopathy 23022099 IBIS 2 / 7739
25
(HPO:0008347) Decreased activity of mitochondrial complex IV 23022099 IBIS 31 / 7739
26
(HPO:0011923) Decreased activity of mitochondrial complex I 23022099 IBIS 35 / 7739
27
(HPO:0011925) Decreased activity of mitochondrial ATP synthase complex 23022099 IBIS 10 / 7739
28
(HPO:0008972) Decreased activity of mitochondrial respiratory chain 23022099 IBIS 34 / 7739
29
(HPO:0002878) Respiratory failure 23022099 IBIS 57 / 7739
30
(HPO:0002922) Increased CSF protein 18835491 IBIS 27 / 7739
31
(HPO:0002353) EEG abnormality 18835491 IBIS 188 / 7739
32
(HPO:0006808) Cerebral hypomyelination 18835491 IBIS 16 / 7739
33
(HPO:0003819) Death in childhood 23022099 IBIS 42 / 7739
34
(HPO:0011924) Decreased activity of mitochondrial complex III 26238252 IBIS 22 / 7739
35
(HPO:0001072) Thickened skin 26238252 IBIS 87 / 7739