Symptom Information: Sort according to HPO 

1
(HPO:0000407) Sensorineural hearing impairment 524 / 7739
2
(HPO:0000546) Retinal degeneration 61 / 7739
3
(HPO:0000639) Nystagmus 555 / 7739
4
(HPO:0000711) Restlessness 18 / 7739
5
(HPO:0000750) Delayed speech and language development 197 / 7739
6
(HPO:0001249) Intellectual disability 1089 / 7739
7
(HPO:0001263) Global developmental delay 853 / 7739
8
(HPO:0001250) Seizures 1245 / 7739
9
(HPO:0001252) Muscular hypotonia 990 / 7739
10
(HPO:0001324) Muscle weakness 859 / 7739
11
(HPO:0001266) Choreoathetosis 57 / 7739
12
(HPO:0001942) Metabolic acidosis 81 / 7739
13
(HPO:0001943) Hypoglycemia 131 / 7739
14
(HPO:0002344) Progressive neurologic deterioration 27 / 7739
15
(HPO:0002376) Developmental regression 74 / 7739
16
(HPO:0003128) Lactic acidosis 116 / 7739
17
(HPO:0008947) Infantile muscular hypotonia 482 / 7739
18
(HPO:0010547) Muscle flaccidity 466 / 7739
19
(OMIM) MRI shows mild frontotemporal atrophy 1 / 7739
20
(OMIM) Decreased activity of 2-methyl-3-hydroxybutyryl Co-A dehydrogenase 1 / 7739
21
(OMIM) Increased urinary 2-methyl-3 hydroxybutyrate 1 / 7739
22
(OMIM) Increased urinary tiglyglycine 1 / 7739
23
(HPO:0001423) X-linked dominant inheritance 69 / 7739
24
(HPO:0001639) Hypertrophic cardiomyopathy 137 / 7739
25
(HPO:0003593) Infantile onset 249 / 7739