{"Name":"Developmental and epileptic encephalopathy, 12","DiseaseID__c":"GARD:0013318","id":13318,"encodedName":"developmental-and-epileptic-encephalopathy-12","IsDeleted":false,"Disease_Name_Full__c":"Developmental and epileptic encephalopathy, 12","Xref_IDs__c":"C3150988; DOID:0080459; MEDGEN:462338; MONDO:0013389; OMIM:613722","USA_Estimate__c":null,"No_of_Specialist_Tagsa__c":2,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":null,"No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":3,"Disease_Characteristics_Score__c":6,"No_of_Age_at_Onset__c":0,"Description_Source__c":"MONDO:0013389","Disease_Description__c":"An extremely rare nervous system disorder. Infants with EIEE12 develop very frequent epileptic seizures. Seizures present within the first days to months of life. Seizures may trigger eye rolling, eyelid fluttering, lip smacking, drooling, bluish coloring around the mouth, limpness, or muscle stiffening (particularly those in his or her back, legs, and arms). The seizures associated with this disease are difficult to treat and the syndrome is severely progressive. EIEE12 occurs when a child inherits two mutations in the PLCB1 gene (one from each parent). EIEE12 is inherited in an autosomal recessive fashion.","GARD_Name__c":"Developmental and epileptic encephalopathy, 12","GARD_Synonym__c":"dee12; developmental and epileptic encephalopathy 12; early infantile epileptic encephalopathy 12; early infantile epileptic encephalopathy caused by mutation in plcb1; eiee12; epileptic encephalopathy, early infantile, 12; epileptic encephalopathy, early infantile, type 12; plcb1 early infantile epileptic encephalopathy","Curated_Disease_Description_Source__c":"GARD:0013318","Curated_Disease_Description__c":"Early Infantile Epileptic Encephalopathy type 12 (EIEE12) is an extremely rare nervous system disorder. Infants with EIEE12 develop very frequent epileptic seizures. Seizures present within the first days to months of life. Seizures may trigger eye rolling, eyelid fluttering, lip smacking, drooling, bluish coloring around the mouth, limpness, or muscle stiffening (particularly those in his or her back, legs, and arms). EIEE12 occurs when a child inherits two genetic changes in the PLCB1 gene (one from each parent). EIEE12 is inherited in an autosomal recessive fashion.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":null,"Age_at_Onset_Snippet_Text__c":null,"SourceID__c":"OMIM:613722","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0013389","ORPHANET_ID__c":null,"Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":null,"Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":null,"Spanish_GARD_Synonym__c":null,"Category_Linearization__c":null,"icd10_id__c":null,"mesh_id__c":null,"omim_id__c":null,"snomed_id__c":null,"umls_id__c":null,"GARD_Disease__c":[{"Curated_Disease_Description__c":"Early Infantile Epileptic Encephalopathy type 12 (EIEE12) is an extremely rare nervous system disorder. Infants with EIEE12 develop very frequent epileptic seizures. Seizures present within the first days to months of life. Seizures may trigger eye rolling, eyelid fluttering, lip smacking, drooling, bluish coloring around the mouth, limpness, or muscle stiffening (particularly those in his or her back, legs, and arms). EIEE12 occurs when a child inherits two genetic changes in the PLCB1 gene (one from each parent). EIEE12 is inherited in an autosomal recessive fashion.","Curated_Disease_Description_Source__c":"GARD:0013318","GARD_Synonym__c":"dee12; developmental and epileptic encephalopathy 12; early infantile epileptic encephalopathy 12; early infantile epileptic encephalopathy caused by mutation in plcb1; eiee12; epileptic encephalopathy, early infantile, 12; epileptic encephalopathy, early infantile, type 12; plcb1 early infantile epileptic encephalopathy","Name":"Developmental and epileptic encephalopathy, 12","estimateUsa":""}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Epilepsy Foundation","Website__c":"https://www.epilepsy.com/"},{"Account_Name__c":"Aaron's Ohtahara","Website__c":"https://sites.google.com/a/ohtahara.org/ohtahara2/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C3150988"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0013318","Source__c":"RareSource"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0080459","Source__c":"MONDO:0013389","Xref__c":"DOID:0080459"},{"URL__c":"https://www.omim.org/entry/613722","Source__c":"C3150988; MONDO:0013389","Xref__c":"OMIM:613722"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=462338","Source__c":"C3150988","Xref__c":"MEDGEN:462338"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C3150988","Source__c":"C3150988","Xref__c":"C3150988"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0013389","Source__c":"GARD:0013318","Xref__c":"MONDO:0013389"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"PLCB1","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A bilateral tonic-clonic seizure is a seizure defined by a tonic (bilateral increased tone, lasting seconds to minutes) and then a clonic (bilateral sustained rhythmic jerking) phase.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002069","HPO_Synonym__c":"Bilateral convulsive seizures; Generalised tonic-clonic seizure (without specification of onset); Generalized convulsion; Generalized tonic-clonic seizure (without specification of onset); Grand mal; Grand mal seizures; Seizures, tonic-clonic; Tonic-clonic convulsion; Tonic-clonic convulsions","HPO_Name__c":"Bilateral tonic-clonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A tonic seizure is a type of motor seizure characterized by unilateral or bilateral limb stiffening or elevation, often with neck stiffening.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0032792","HPO_Name__c":"Tonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A condition in which epileptiform abnormalities are believed to contribute to the progressive disturbance in cerebral function. Epileptic encephalaopathy is characterized by (1) electrographic EEG paroxysmal activity that is often aggressive, (2) seizures that are usually multiform and intractable, (3) cognitive, behavioral and neurological deficits that may be relentless, and (4) sometimes early death.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0200134","HPO_Synonym__c":"Convulsive encephalopathy","HPO_Name__c":"Epileptic encephalopathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A motor disorder characterized by a velocity-dependent increase in tonic stretch reflexes with increased muscle tone, exaggerated (hyperexcitable) tendon reflexes.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001257","HPO_Synonym__c":"Involuntary muscle stiffness, contraction, or spasm; Muscle spasticity; Muscular spasticity","HPO_Name__c":"Spasticity","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A focal-onset seizure is a type of seizure originating within networks limited to one hemisphere. They may be discretely localized or more widely distributed, and may originate in subcortical structures.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007359","HPO_Synonym__c":"Focal onset seizure; Focal seizure; Focal seizures; Focal-onset seizures; Partial seizure; Partial seizures; Seizure affecting one half of brain","HPO_Name__c":"Focal-onset seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Loss of developmental skills, as manifested by loss of developmental milestones.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002376","HPO_Synonym__c":"Loss of acquired milestones; Loss of developmental milestones; Loss of milestones; Mental deterioration in childhood; Neurodevelopmental regression; Psychomotor regression; Psychomotor regression beginning in infancy; Psychomotor regression in infants; Psychomotor regression, progressive","HPO_Name__c":"Developmental regression","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A sudden flexion, extension, or mixed extension-flexion of predominantly proximal and truncal muscles that is usually more sustained than a myoclonic movement but not as sustained as a tonic seizure. Limited forms may occur: Grimacing, head nodding, or subtle eye movements. Epileptic spasms frequently occur in clusters. Infantile spasms are the best known form, but spasms can occur at all ages","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011097","HPO_Synonym__c":"Epileptic spasms; Salaam convulsion; Salaam convulsions; Salaam seizure; Salaam seizures","HPO_Name__c":"Epileptic spasm","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Muscular hypotonia (abnormally low muscle tone) affecting the musculature of the trunk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008936","HPO_Synonym__c":"Low muscle tone in trunk; Muscular hypotonia of the trunk; Truncal hypotonia","HPO_Name__c":"Axial hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:613722","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Hypsarrhythmia is abnormal interictal high amplitude waves and a background of irregular spikes. There is continuous (during wakefulness), high-amplitude (>200 Hz), generalized polymorphic slowing with no organized background and multifocal spikes demonstrated by electroencephalography (EEG).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002521","HPO_Synonym__c":"Hypsarrhythmia by EEG","HPO_Name__c":"Hypsarrhythmia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_EEG"}},{"Provided_By__c":"OMIM:613722","Feature__r":{"HPO_Description__c":"Hyperreflexia is the presence of hyperactive stretch reflexes of the muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001347","HPO_Synonym__c":"Increased deep tendon reflexes; Increased reflexes","HPO_Name__c":"Hyperreflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Account":["Epilepsy"],"Specialist":["Epilepsy","Neurodevelopmental disabilities"]},"synonyms":["dee12"," developmental and epileptic encephalopathy 12"," early infantile epileptic encephalopathy 12"," early infantile epileptic encephalopathy caused by mutation in plcb1"," eiee12"," epileptic encephalopathy, early infantile, 12"," epileptic encephalopathy, early infantile, type 12"," plcb1 early infantile epileptic encephalopathy"]}