{"Name":"Progressive myoclonic epilepsy type 9","DiseaseID__c":"GARD:0017801","id":17801,"encodedName":"progressive-myoclonic-epilepsy-type-9","IsDeleted":false,"Disease_Name_Full__c":"Progressive myoclonic epilepsy type 9","Xref_IDs__c":"1228857005; C4225289; DOID:0111450; MEDGEN:901242; MONDO:0014685; OMIM:616540; ORPHA:457265","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":4,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":4,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0014685","Disease_Description__c":"Any progressive myoclonic epilepsy in which the cause of the disease is a mutation in the LMNB2 gene.","GARD_Name__c":"Progressive myoclonic epilepsy type 9","GARD_Synonym__c":"epilepsy, progressive myoclonic, type 9; epm9; lmnb2 progressive myoclonic epilepsy; pme (progressive myoclonic epilepsy) type 9; pme type 9; progressive myoclonic epilepsy caused by mutation in lmnb2; progressive myoclonic epilepsy due to lmnb2 (lamin b2) deficiency; progressive myoclonic epilepsy due to lmnb2 deficiency; progressive myoclonus epilepsy type 9","Curated_Disease_Description_Source__c":"ORPHA:457265","Curated_Disease_Description__c":"A rare, genetic, neurological disorder characterized by childhood-onset severe myoclonic and tonic-clonic seizures and early-onset ataxia leading to severe gait disturbances associated with normal to slightly diminished cognition. Scoliosis, diffuse muscle atrophy and subcutaneous fat loss, as well as developmental delay, may be associated. Brain MRI may reveal complete agenesis of the corpus callosum, ventriculomegaly, interhemispheric cysts, and simplified gyration (frontally).","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as a Child","SourceID__c":"ORPHA:457265","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0014685","ORPHANET_ID__c":"ORPHA:457265","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Epilepsia mioclónica progresiva tipo 9","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"epilepsia mioclónica progresiva tipo 9","Spanish_GARD_Synonym__c":"emp tipo 9; emp9; epilepsia mioclónica progresiva por deficiencia de lmnb2; epilepsia progresiva con mioclonías tipo 9","Category_Linearization__c":"ORPHA:98006","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":"A rare, genetic, neurological disorder characterized by childhood-onset severe myoclonic and tonic-clonic seizures and early-onset ataxia leading to severe gait disturbances associated with normal to slightly diminished cognition. Scoliosis, diffuse muscle atrophy and subcutaneous fat loss, as well as developmental delay, may be associated. Brain MRI may reveal complete agenesis of the corpus callosum, ventriculomegaly, interhemispheric cysts, and simplified gyration (frontally).","Curated_Disease_Description_Source__c":"ORPHA:457265","GARD_Synonym__c":"epilepsy, progressive myoclonic, type 9; epm9; lmnb2 progressive myoclonic epilepsy; pme (progressive myoclonic epilepsy) type 9; pme type 9; progressive myoclonic epilepsy caused by mutation in lmnb2; progressive myoclonic epilepsy due to lmnb2 (lamin b2) deficiency; progressive myoclonic epilepsy due to lmnb2 deficiency; progressive myoclonus epilepsy type 9","Name":"Progressive myoclonic epilepsy type 9","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Epilepsy Foundation","Website__c":"https://www.epilepsy.com/"}],"GARD_Disease_Tag__c":[{"Tag_Name__c":"Genetics","Tag_Category__c":"Cause;Disease Category;Specialist","category_description":"Genetic diseases affect the DNA, or genetic instructions, which directs how tissues, organs, and body systems function.","curated_tag_name":"Genetic diseases"},{"Tag_Name__c":"Neurology","Tag_Category__c":"Disease Category;Specialist","category_description":"Neurological diseases affect the brain, spinal cord, cranial nerves, autonomic nerves, or other peripheral nerves.","curated_tag_name":"Neurological diseases"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:457265"}],"External_Identifier_Disease__c":[{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C4225289","Source__c":"C4225289","Xref__c":"C4225289"},{"URL__c":"https://www.orpha.net/en/disease/detail/457265","Source__c":"C4225289; MONDO:0014685; ORPHA:457265","Xref__c":"ORPHA:457265"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0111450","Source__c":"MONDO:0014685","Xref__c":"DOID:0111450"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=901242","Source__c":"C4225289","Xref__c":"MEDGEN:901242"},{"URL__c":"https://www.omim.org/entry/616540","Source__c":"C4225289; MONDO:0014685; ORPHA:457265","Xref__c":"OMIM:616540"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0014685","Source__c":"GARD:0017801","Xref__c":"MONDO:0014685"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1228857005","Source__c":"C4225289","Xref__c":"1228857005"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"LMNB2","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The presence of an abnormal lateral curvature of the spine.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002650","HPO_Name__c":"Scoliosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of myoclonus (arrhythmic muscular jerking) that is induced by voluntary movement. It is made worse by attempts at precise or coordinated movement (intention myoclonus) and may also be provoked by certain sensory stimuli.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0034360","HPO_Name__c":"Action myoclonus","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Status epilepticus is a type of prolonged seizure resulting either from the failure of the mechanisms responsible for seizure termination or from the initiation of mechanisms which lead to abnormally prolonged seizures (after time point t1). It is a condition that can have long-term consequences (after time point t2), including neuronal death, neuronal injury, and alteration of neuronal networks, depending on the type and duration of seizures.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002133","HPO_Synonym__c":"Prolonged seizure; Repeated seizure without recovery; Repeated seizures without recovery between them","HPO_Name__c":"Status epilepticus","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001336","HPO_Synonym__c":"Myoclonic jerks","HPO_Name__c":"Myoclonus","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hypoplasia (congenital reduction in size) of the thumb.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009778","HPO_Synonym__c":"Hypoplastic thumb; Hypoplastic thumbs; Hypoplastic/small thumb; Short thumb; Short thumbs; Small thumbs; Thumb brachydactyly; Thumb hypoplasia","HPO_Name__c":"Short thumb","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","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:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002359","HPO_Synonym__c":"Frequent falls","HPO_Name__c":"Frequent falls","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Decreased length and width of the tongue.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000171","HPO_Synonym__c":"Decreased size of tongue; Hypoglossia; Hypoplasia of the tongue; Hypoplastic tongue; Lingual hypoplasia; Rudimentary tongue; Small tongue; Underdevelopment of the tongue; Abnormally small tongue","HPO_Name__c":"Microglossia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of ataxia characterized by the impairment of the ability to coordinate the movements required for normal walking. Gait ataxia is characteirzed by a wide-based staggering gait with a tendency to fall.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002066","HPO_Synonym__c":"Ataxia of gait; Ataxic gait; Inability to coordinate movements when walking","HPO_Name__c":"Gait ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002123","HPO_Synonym__c":"Generalised epileptic myoclonus; Generalised myoclonic seizure; Generalized epileptic myoclonus; Generalized myoclonic seizures; Myoclonus seizures","HPO_Name__c":"Generalized myoclonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Absence of the corpus callosum as a result of the failure of the corpus callosum to develop, which can be the result of a failure in any one of the multiple steps of callosal development including cellular proliferation and migration, axonal growth or glial patterning at the midline.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001274","HPO_Synonym__c":"Absence of corpus callosum; Absent corpus callosum; Agenesis of the corpus callosum; Callosal agenesis; Corpus callosum agenesis; Dysplastic or absent corpus callosum","HPO_Name__c":"Agenesis of corpus callosum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the cerebral cortex with fewer gyri but with normal cortical thickness. This pattern is usually often associated with congenital microcephaly.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009879","HPO_Synonym__c":"Cortical gyral simplification","HPO_Name__c":"Simplified gyral pattern","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Cystic collection (sac-like, fluid containing pocket of membranous tissue) located in the interhemispheric fissure, with or without communication with the ventricular system.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0032327","HPO_Name__c":"Interhemispheric cyst","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A delay in the achievement of motor or mental milestones in the domains of development of a child, including motor skills, speech and language, cognitive skills, and social and emotional skills. This term should only be used to describe children younger than five years of age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001263","HPO_Synonym__c":"Delayed cognitive development; Delayed development; Delayed developmental milestones; Delayed intellectual development; Delayed milestones; Delayed psychomotor development; Developmental delay; Developmental delay in early childhood; Developmental delay, global; Developmental retardation; GDD; Lack of psychomotor development; Motor and developmental delay; Motormental retardation; Psychomotor delay; Psychomotor development deficiency; Psychomotor development failure; Psychomotor developmental delay; Retarded development; Retarded mental development; Retarded psychomotor development","HPO_Name__c":"Global developmental delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Generalized (diffuse, unlocalized) amyotrophy (muscle atrophy) affecting multiple muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003700","HPO_Synonym__c":"Diffuse amyotrophy; Diffuse muscle atrophy; Diffuse muscle wasting; Diffuse skeletal muscle wasting; Generalized muscle atrophy; Generalized muscle degeneration; Muscle atrophy, diffuse; Muscle atrophy, generalized; Muscular atrophy, generalized","HPO_Name__c":"Generalized amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:616540","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increase in size of the ventricular system of the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002119","HPO_Synonym__c":"Cerebral ventricular dilatation; Dilated cerebral ventricle; Dilated cerebral ventricles; Dilated ventricles; Enlarged cerebral ventricles; Enlarged ventricles; Enlarged ventricular system; Large cerebral ventricles and cisternae; Ventricular dilatation","HPO_Name__c":"Ventriculomegaly","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Epilepsy","Pediatrics"],"Account":["Epilepsy"]},"synonyms":["epilepsy, progressive myoclonic, type 9"," epm9"," lmnb2 progressive myoclonic epilepsy"," pme (progressive myoclonic epilepsy) type 9"," pme type 9"," progressive myoclonic epilepsy caused by mutation in lmnb2"," progressive myoclonic epilepsy due to lmnb2 (lamin b2) deficiency"," progressive myoclonic epilepsy due to lmnb2 deficiency"," progressive myoclonus epilepsy type 9"]}