Hearing Loss Disease Portal


 
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Most Common: Hearing Loss (D034381), Deafness (D003638), Sensorineural HL (D006319), Waardenburg Syndrome, Usher Syndromes
Term ID:8745
Name:Pelizaeus-Merzbacher Disease
Definition:A rare, slowly progressive disorder of myelin formation. Subtypes are referred to as classic, congenital, transitional, and adult forms of this disease. The classic form is X-chromosome linked, has its onset in infancy and is associated with a mutation of the proteolipid protein gene. Clinical manifestations include TREMOR, spasmus nutans, roving eye movements, ATAXIA, spasticity, and NYSTAGMUS, CONGENITAL. Death occurs by the third decade of life. The congenital form has similar characteristics but presents early in infancy and features rapid disease progression. Transitional and adult subtypes have a later onset and less severe symptomatology. Pathologic features include patchy areas of demyelination with preservation of perivascular islands (trigoid appearance). (From Menkes, Textbook of Child Neurology, 5th ed, p190)
Alternative IDs:OMIM:169500|OMIM:312080
ParentIDs:MESH:D020279|MESH:D040181
TreeNumbers:C10.228.140.163.100.362.775 |C10.228.140.695.625.775 |C10.314.400.775 |C16.320.322.906 |C16.320.565.189.362.775 |C18.452.132.100.362.775 |C18.452.648.189.362.775
Synonyms:ADLD |Adult Pelizaeus Merzbacher Disease |Adult Pelizaeus-Merzbacher Disease |Atypical Pelizaeus Merzbacher Disease |Atypical Pelizaeus-Merzbacher Disease |Classic Pelizaeus Merzbacher Disease |Classic Pelizaeus-Merzbacher Disease |Cockayne Pelizaeus Merzbacher
Slim Mappings:Genetic disease (inborn)|Metabolic disease|Nervous system disease
Reference: MedGen: D020371
MeSH: D020371
OMIM: 169500;

Genes: LMNB1; PLP1;
Phenotypes
1 HP:0005341Autonomic bladder dysfunction
2 HP:0008652Autonomic erectile dysfunction
3 HP:0000006Autosomal dominant inheritance
4 HP:0007480Decreased sweating due to autonomic dysfunction
5 HP:0004926Orthostatic hypotension due to autonomic dysfunction
6 HP:0003581Adult onset
7 HP:0000079Abnormality of the urinary system
8 HP:0001251Ataxia
9 HP:0003487Babinski sign
10 HP:0007371Corpus callosum atrophy
11 HP:0000716Depression
12 HP:0006994Diffuse leukoencephalopathy
13 HP:0002171Gliosis
14 HP:0001347Hyperreflexia
15 HP:0000802Impotence
16 HP:0002415Leukodystrophy
17 HP:0000639Nystagmus
18 HP:0000751Personality changes
19 HP:0003676Progressive
20 HP:0002344Progressive neurologic deterioration
21 HP:0007024Pseudobulbar paralysis
22 HP:0001257Spasticity
23 HP:0007262Symmetric peripheral demyelination
Disease Causing ClinVar Variants