{"Name":"Alkaline ceramidase 3 deficiency","DiseaseID__c":"GARD:0017936","id":17936,"encodedName":"alkaline-ceramidase-3-deficiency","IsDeleted":false,"Disease_Name_Full__c":"Alkaline ceramidase 3 deficiency","Xref_IDs__c":"1237515001; C4540358; MEDGEN:1622324; MONDO:0044718; OMIM:617762; ORPHA:502444","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":3,"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":1,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":1,"Description_Source__c":"ORPHA:502444","Disease_Description__c":"A rare genetic leukodystrophy characterized by infantile onset of stagnation and regression of motor and language development resulting in complete lack of communication and purposeful movement. Further neurological manifestations include truncal hypotonia, appendicular spasticity, dystonia, optic disc pallor, peripheral neuropathy, and neurogenic bladder. Patients also present multiple contractures, late-onset relative macrocephaly, short stature, and facial dysmorphism (including coarse facial features, sloping forehead, thick eyebrows, low-set ears, prominent nose, flat philtrum, and prominent lower lip). Brain imaging at advanced stages shows diffuse abnormal white matter signal and severe atrophy. Sural nerve biopsy reveals decreased myelination.","GARD_Name__c":"Alkaline ceramidase 3 deficiency","GARD_Synonym__c":"acer3-related early childhood-onset progressive leukodystrophy; leukodystrophy due to alkaline ceramidase 3 deficiency; leukodystrophy, progressive, early childhood-onset","Curated_Disease_Description_Source__c":"ORPHA:502444","Curated_Disease_Description__c":"A rare genetic leukodystrophy characterized by infantile onset of stagnation and regression of motor and language development resulting in complete lack of communication and purposeful movement. Further neurological manifestations include truncal hypotonia, appendicular spasticity, dystonia, optic disc pallor, peripheral neuropathy, and neurogenic bladder. Patients also present multiple contractures, late-onset relative macrocephaly, short stature, and facial dysmorphism (including coarse facial features, sloping forehead, thick eyebrows, low-set ears, prominent nose, flat philtrum, and prominent lower lip). Brain imaging at advanced stages shows diffuse abnormal white matter signal and severe atrophy. Sural nerve biopsy reveals decreased myelination.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Infant","SourceID__c":"ORPHA:502444","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0044718","ORPHANET_ID__c":"ORPHA:502444","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Deficiencia de ceramidasa alcalina 3","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"deficiencia de ceramidasa alcalina 3","Spanish_GARD_Synonym__c":"leucodistrofia por deficiencia de ceramidasa alcalina 3; leucodistrofia progresiva de inicio en la infancia temprana asociada a acer3","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 leukodystrophy characterized by infantile onset of stagnation and regression of motor and language development resulting in complete lack of communication and purposeful movement. Further neurological manifestations include truncal hypotonia, appendicular spasticity, dystonia, optic disc pallor, peripheral neuropathy, and neurogenic bladder. Patients also present multiple contractures, late-onset relative macrocephaly, short stature, and facial dysmorphism (including coarse facial features, sloping forehead, thick eyebrows, low-set ears, prominent nose, flat philtrum, and prominent lower lip). Brain imaging at advanced stages shows diffuse abnormal white matter signal and severe atrophy. Sural nerve biopsy reveals decreased myelination.","Curated_Disease_Description_Source__c":"ORPHA:502444","GARD_Synonym__c":"acer3-related early childhood-onset progressive leukodystrophy; leukodystrophy due to alkaline ceramidase 3 deficiency; leukodystrophy, progressive, early childhood-onset","Name":"Alkaline ceramidase 3 deficiency","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"United Leukodystrophy Foundation","Website__c":"https://ulf.org/"}],"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":"Leukodystrophy","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Leukodystrophies are a group of genetic neurological diseases that affect the white matter of the brain and spinal cord.","curated_tag_name":"Leukodystrophies"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:502444"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.orpha.net/en/disease/detail/502444","Source__c":"C4540358; MONDO:0044718; ORPHA:502444","Xref__c":"ORPHA:502444"},{"URL__c":"https://www.omim.org/entry/617762","Source__c":"C4540358; MONDO:0044718; ORPHA:502444","Xref__c":"OMIM:617762"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C4540358","Source__c":"C4540358","Xref__c":"C4540358"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=1622324","Source__c":"C4540358","Xref__c":"MEDGEN:1622324"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1237515001","Source__c":"C4540358","Xref__c":"1237515001"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0044718","Source__c":"GARD:0017936","Xref__c":"MONDO:0044718"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"ACER3","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased thickness of the lower lip, leading to a prominent appearance of the lower lip. The height of the vermilion of the lower lip in the midline is more than 2 SD above the mean. Alternatively, an apparently increased height of the vermilion of the lower lip in the frontal view (subjective).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000179","HPO_Synonym__c":"Full lower lip vermilion; Increased height of lower lip vermilion; Increased volume of lower lip; Increased volume of lower lip vermilion; Plump lower lip; Prominent lower lip; Thick vermilion border of lower lip","HPO_Name__c":"Thick lower lip vermilion","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Absence of fine and sharp appearance of brows, nose, lips, mouth, and chin, usually because of rounded and heavy features or thickened skin with or without thickening of subcutaneous and bony tissues.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000280","HPO_Synonym__c":"Coarse face; Coarse facial appearance; Coarse facial features; Coarse facies","HPO_Name__c":"Coarse facial features","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A limitation in the passive range of motion of a joint resulting from loss of elasticity in the periarticular tissues owing to structural changes of non-bony tissues, such as muscles, tendons, ligaments, joint capsules or skin. A contracture prevents movement of the associated body part.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0034392","HPO_Synonym__c":"Contracture","HPO_Name__c":"Joint contracture","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Distance between subnasale and pronasale more than two standard deviations above the mean, or alternatively, an apparently increased anterior protrusion of the nasal tip.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000448","HPO_Synonym__c":"Big nose; Disproportionately large nose; Increased nasal size; Increased size of nose; Large nose; Prominent nose; Pronounced nose","HPO_Name__c":"Prominent nose","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","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:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Severe intellectual disability (ID) is defined as a type of ID characterized by severely sub-average adaptive functioning and intellectual functioning, with an intelligence quotient (IQ) the range of 20-34.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010864","HPO_Synonym__c":"Early and severe mental retardation; Intellectual disability, severe; Mental retardation, severe; Severe mental retardation","HPO_Name__c":"Severe intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A relatively mild degree of macrocephaly in which the head circumference is not above two standard deviations from the mean, but appears dysproportionately large when other factors such as body stature are taken into account.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004482","HPO_Synonym__c":"Disproportionately large head; Macrocephaly, relative; Relatively large head","HPO_Name__c":"Relative macrocephaly","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Peripheral neuropathy is a general term for any disorder of the peripheral nervous system. The main clinical features used to classify peripheral neuropathy are distribution, type (mainly demyelinating versus mainly axonal), duration, and course.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009830","HPO_Synonym__c":"Peripheral nerve damage; Peripheral neuritis","HPO_Name__c":"Peripheral neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Flat skin surface, with no ridge formation in the central region of the upper lip between the nasal base and upper vermilion border.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000319","HPO_Synonym__c":"Decreased depth of philtrum; Flat philtrum; Indistinct philtrum; Philtrum, smooth; Shallow philtrum; Simple philtrum","HPO_Name__c":"Smooth philtrum","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Leukodystrophy refers to deterioration of white matter of the brain resulting from degeneration of myelin sheaths in the CNS. Their basic defect is directly related to the synthesis and maintenance of myelin membranes. Symmetric white matter involvement at MRI is a typical finding in patients with leukodystrophies.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002415","HPO_Synonym__c":"Degeneration of white matter of brain","HPO_Name__c":"Leukodystrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A cessation of the development of a child in the areas of motor skills, speech and language, cognitive skills, and social and/or emotional skills.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007281","HPO_Synonym__c":"Developmental arrest","HPO_Name__c":"Developmental stagnation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A height below that which is expected according to age and sex norms. Although there is no universally accepted definition of short stature, many refer to \\\"short stature\\\" as height more than 2 standard deviations below the mean for age and sex (or below the 3rd percentile for age and sex dependent norms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004322","HPO_Synonym__c":"Decreased body height; Height less than 3rd percentile; Short stature; Small stature; Stature below 3rd percentile","HPO_Name__c":"Short stature","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Increased density/number and/or increased diameter of eyebrow hairs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000574","HPO_Synonym__c":"Bushy eyebrows; Dense eyebrow; Heavy eyebrows; Hypertrichosis of the eyebrow; Prominent eyebrows; Thick eyebrow; Thick eyebrows","HPO_Name__c":"Thick eyebrow","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of bladder dysfunction caused by neurologic damage. Neurogenic bladder can be flaccid or spastic. Common manifestatios of neurogenic bladder are overflow incontinence, frequency, urgency, urge incontinence, and retention.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000011","HPO_Synonym__c":"Lack of bladder control due to nervous system injury","HPO_Name__c":"Neurogenic bladder","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Absence of neurologic reflexes such as the knee-jerk reaction.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001284","HPO_Synonym__c":"Absent deep tendon reflexes; Absent tendon reflexes; Deep tendon reflexes absent; Loss of deep tendon reflexes; Lost deep tendon reflexes","HPO_Name__c":"Areflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Underdevelopment of the corpus callosum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002079","HPO_Synonym__c":"Corpus callosum hypoplasia; Hypoplasia of corpus callosum; Hypoplastic corpus callosum; Underdevelopment of part of brain called corpus callosum","HPO_Name__c":"Hypoplasia of the corpus callosum","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Upper insertion of the ear to the scalp below an imaginary horizontal line drawn between the inner canthi of the eye and extending posteriorly to the ear.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000369","HPO_Synonym__c":"Low set ears; Low-set ears; Low-set pinnae; Lowset ears; Melotia","HPO_Name__c":"Low-set ears","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of spasticity that affects one or more limbs (arms or legs).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0034353","HPO_Synonym__c":"Extremity spasticity; Limb spasticity; Spastic extremities; Spastic limb; Spastic limbs; Spasticity of extremities; Spasticity of extremity; Spasticity of limbs","HPO_Name__c":"Appendicular spasticity","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Atrophy (wasting, decrease in size of cells or tissue) affecting the cerebrum.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002059","HPO_Synonym__c":"Degeneration of cerebrum","HPO_Name__c":"Cerebral atrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A pale yellow discoloration of the optic disc (the area of the optic nerve head in the retina). The optic disc normally has a pinkish hue with a central yellowish depression.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000543","HPO_Synonym__c":"Pale optic disc","HPO_Name__c":"Optic disc pallor","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","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:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Inclination of the anterior surface of the forehead from the vertical more than two standard deviations above the mean (objective); or apparently excessive posterior sloping of the forehead in a lateral view.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000340","HPO_Synonym__c":"Inclined forehead; Posteriorly sloping forehead; Receding forehead; Sloping forehead","HPO_Name__c":"Sloping forehead","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:617762","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormally increased muscular tone that causes fixed abnormal postures. There is a slow, intermittent twisting motion that leads to exaggerated turning and posture of the extremities and trunk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001332","HPO_Synonym__c":"Dystonic movements","HPO_Name__c":"Dystonia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics","Leukodystrophy"],"Disease Category":["Genetics","Neurology","Leukodystrophy"],"Specialist":["Genetics","Neurology","Pediatrics"],"Account":["Leukodystrophy"]},"synonyms":["acer3-related early childhood-onset progressive leukodystrophy"," leukodystrophy due to alkaline ceramidase 3 deficiency"," leukodystrophy, progressive, early childhood-onset"]}