DEE8
MCID: DVL028
MIFTS: 37
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Developmental and Epileptic Encephalopathy 8 (DEE8)
Categories:
Cancer diseases, Ear diseases, Eye diseases, Fetal diseases, Genetic diseases, Liver diseases, Mental diseases, Metabolic diseases, Neuronal diseases, Rare diseases, Respiratory diseases
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MalaCards integrated aliases for Developmental and Epileptic Encephalopathy 8:
Characteristics:Orphanet epidemiological data:58
hyperekplexia-epilepsy syndrome
Inheritance: X-linked recessive; Prevalence: <1/1000000 (Worldwide); HPO:31
developmental and epileptic encephalopathy 8:
Onset and clinical course congenital onset Inheritance x-linked recessive inheritance Classifications:
MalaCards categories:
Global: Genetic diseases Rare diseases Metabolic diseases Fetal diseases Cancer diseases Anatomical: Neuronal diseases Eye diseases Liver diseases Ear diseases Mental diseases Respiratory diseases
ICD10:
33
Orphanet: 58
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OMIM® :
57
Developmental and epileptic encephalopathy-8 (DEE8) is an X-linked disorder characterized by seizure onset before 2 years of age and severe developmental delay. Some patients have hyperekplexia (summary by Shimojima et al., 2011).
For general phenotypic descriptions and discussions of genetic heterogeneity of developmental and epileptic encephalopathy and hyperekplexia, see DEE1 (308350) and HKPX1 (149400), respectively. (300607) (Updated 05-Mar-2021)
MalaCards based summary : Developmental and Epileptic Encephalopathy 8, also known as early infantile epileptic encephalopathy 8, is related to xq28 duplication syndrome, int22h1/int22h2 mediated and chromosome xq28 duplication syndrome, and has symptoms including reflex, abnormal and hyperexplexia. An important gene associated with Developmental and Epileptic Encephalopathy 8 is ARHGEF9 (Cdc42 Guanine Nucleotide Exchange Factor 9), and among its related pathways/superpathways are p75(NTR)-mediated signaling and Transcription_NF-kB signaling pathway. Related phenotypes are developmental regression and hypertonia Disease Ontology : 12 A developmental and epileptic encephalopathy characterized by seizures with onset before 2 years of age, severe developmental delay, and in some patients hyperekplexia that has material basis in X-linked recessive inheritance of a mutation in the ARHGEF9 gene on chromosome Xq22.1. KEGG : 36 Hyperekplexia and epilepsy is also known as early infantile epileptic encephalopathy 8 (EIEE8) [DS:H00606]. It is a X-linked mental retardation and sensory hyperarousal, caused by mutations in ARHGEF9. Collybistin, encoded by ARHGEF9, is a RhoGEF family protein and highly expressed in the developing and adult brain. UniProtKB/Swiss-Prot : 73 Epileptic encephalopathy, early infantile, 8: A disorder characterized by hyperekplexia and early infantile epileptic encephalopathy. Neurologic features include exaggerated startle response, seizures, impaired psychomotor development, and mental retardation. Seizures can be provoked by tactile stimulation or extreme emotion. |
Human phenotypes related to Developmental and Epileptic Encephalopathy 8:58 31 (show all 13)
Symptoms via clinical synopsis from OMIM®:57 (Updated 05-Mar-2021)Clinical features from OMIM®:300607 (Updated 05-Mar-2021)UMLS symptoms related to Developmental and Epileptic Encephalopathy 8:reflex, abnormal, hyperexplexia |
Cochrane evidence based reviews: reflex, startle |
Articles related to Developmental and Epileptic Encephalopathy 8:
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ClinVar genetic disease variations for Developmental and Epileptic Encephalopathy 8:6 (show top 50) (show all 84)
UniProtKB/Swiss-Prot genetic disease variations for Developmental and Epileptic Encephalopathy 8:73
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Search
GEO
for disease gene expression data for Developmental and Epileptic Encephalopathy 8.
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Cellular components related to Developmental and Epileptic Encephalopathy 8 according to GeneCards Suite gene sharing:
Biological processes related to Developmental and Epileptic Encephalopathy 8 according to GeneCards Suite gene sharing:
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