{"Name":"Spastic paraplegia, optic atropy, and neuropathy","DiseaseID__c":"GARD:0017479","id":17479,"encodedName":"spastic-paraplegia-optic-atropy-and-neuropathy","IsDeleted":false,"Disease_Name_Full__c":"Spastic paraplegia, optic atropy, and neuropathy","Xref_IDs__c":"C1836010; C563702; DOID:0060491; MEDGEN:324411; MONDO:0012297; OMIM:609541; ORPHA:320406","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":6,"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":3,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0012297","Disease_Description__c":"A rare, complex type of hereditary spastic paraplegia characterized by early-onset progressive spastic paraplegia presenting in infancy, associated with optic atrophy, fixation nystagmus, polyneuropathy occurring in late childhood/early adolescence leading to severe motor disability and progressive joint contractures and scoliosis.","GARD_Name__c":"Spastic paraplegia, optic atropy, and neuropathy","GARD_Synonym__c":"spastic paraplegia-optic atrophy-neuropathy syndrome; spastic paraplegia, optic atrophy, and neuropathy; spastic paraplegia, optic atrophy, neuropathy syndrome; spastic paraplegia, optic atropy, and neuropathy syndrome; spoan; spoan (spastic paraplegia, optic atrophy, neuropathy) syndrome; spoan syndrome","Curated_Disease_Description_Source__c":"MONDO:0012297","Curated_Disease_Description__c":"A rare, complex type of hereditary spastic paraplegia characterized by early-onset progressive spastic paraplegia presenting in infancy, associated with optic atrophy, fixation nystagmus, polyneuropathy occurring in late childhood/early adolescence leading to severe motor disability and progressive joint contractures and scoliosis.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Infant and as a Child","SourceID__c":"ORPHA:320406","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0012297","ORPHANET_ID__c":"ORPHA:320406","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de paraplejía espástica-atrofia óptica-neuropatía","Spanish_Description_Source__c":"ORPHA:320406","Spanish_Description__c":"Es un tipo poco frecuente y complejo de paraparesia espástica hereditaria caracterizado por paraparesia espástica progresiva que se presenta en la lactancia, asociada a atrofia óptica, nistagmo de fijación y polineuropatía que aparece en la infancia tardía / adolescencia temprana conllevando discapacidades motoras graves, contracturas progresivas de las articulaciones y escoliosis.","Spanish_Disease_Name__c":"síndrome de paraplejía espástica-atrofia óptica-neuropatía","Spanish_GARD_Synonym__c":"spoan","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, complex type of hereditary spastic paraplegia characterized by early-onset progressive spastic paraplegia presenting in infancy, associated with optic atrophy, fixation nystagmus, polyneuropathy occurring in late childhood/early adolescence leading to severe motor disability and progressive joint contractures and scoliosis.","Curated_Disease_Description_Source__c":"MONDO:0012297","GARD_Synonym__c":"spastic paraplegia-optic atrophy-neuropathy syndrome; spastic paraplegia, optic atrophy, and neuropathy; spastic paraplegia, optic atrophy, neuropathy syndrome; spastic paraplegia, optic atropy, and neuropathy syndrome; spoan; spoan (spastic paraplegia, optic atrophy, neuropathy) syndrome; spoan syndrome","Name":"Spastic paraplegia, optic atropy, and neuropathy","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Spastic Paraplegia Foundation","Website__c":"https://sp-foundation.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":"Ophthalmology","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Hereditary Spastic Paraplegia","Tag_Category__c":"Account","curated_tag_name":"Hereditary spastic paraplegia"},{"Tag_Name__c":"Peripheral Neuropathy","Tag_Category__c":"Account","curated_tag_name":"Peripheral neuropathy"},{"Tag_Name__c":"Neuro-Ophthalmology","Tag_Category__c":"Specialist","curated_tag_name":"Neuro-ophthalmic diseases"},{"Tag_Name__c":"Neuromuscular medicine","Tag_Category__c":"Specialist","curated_tag_name":"Neuromuscular medicine"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:320406"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:320406"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.omim.org/entry/609541","Source__c":"C1836010; MONDO:0012297; ORPHA:320406","Xref__c":"OMIM:609541"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0060491","Source__c":"MONDO:0012297","Xref__c":"DOID:0060491"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C1836010","Source__c":"C1836010","Xref__c":"C1836010"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C563702","Source__c":"MONDO:0012297","Xref__c":"C563702"},{"URL__c":"https://www.orpha.net/en/disease/detail/320406","Source__c":"C1836010; MONDO:0012297; ORPHA:320406","Xref__c":"ORPHA:320406"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=324411","Source__c":"C1836010","Xref__c":"MEDGEN:324411"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=725139005","Source__c":"C1836010","Xref__c":"725139005"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0012297","Source__c":"GARD:0017479","Xref__c":"MONDO:0012297"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"KLC2","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hyperactive stretch reflexes of muscles that move proximal joints (elbow, knee).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007054","HPO_Synonym__c":"Hyperreflexia proximally","HPO_Name__c":"Proximal hyperreflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","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":"ORPHA:320406","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Atrophy of the optic nerve. Optic atrophy results from the death of the retinal ganglion cell axons that comprise the optic nerve and manifesting as a pale optic nerve on fundoscopy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000648","HPO_Synonym__c":"Optic nerve atrophy; Optic-nerve degeneration","HPO_Name__c":"Optic atrophy","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Muscular atrophy of distal leg muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008944","HPO_Synonym__c":"Lower leg amyotrophy; Lower limb degeneration; Muscle atrophy, lower limb, distal","HPO_Name__c":"Distal lower limb amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Dysarthric speech is a general description referring to a neurological speech disorder characterized by poor articulation. Depending on the involved neurological structures, dysarthria may be further classified as spastic, flaccid, ataxic, hyperkinetic and hypokinetic, or mixed.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001260","HPO_Synonym__c":"Difficulty articulating speech; Dysarthric speech","HPO_Name__c":"Dysarthria","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced intensity of muscle tendon reflexes in the lower limbs. Reflexes are elicited by stretching the tendon of a muscle, e.g., by tapping.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002600","HPO_Synonym__c":"Hyporeflexia in lower limbs; Hyporeflexia of the lower limbs; Hyporeflexia, lower limbs; Hyporeflexia/areflexia in lower limbs","HPO_Name__c":"Hyporeflexia of lower limbs","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002828","HPO_Name__c":"Multiple joint contractures","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","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":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of motor delay characterized by a delay in acquiring the ability to control the large muscles of the body for walking, running, sitting, and crawling.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002194","HPO_Synonym__c":"Delayed attainment of gross motor milestones; Delayed attainment of gross motor skills; Delayed development of gross motor milestones; Delayed development of gross motor skills; Delayed gross motor milestones; Delayed gross motor skills; Delayed motor skills; Developmental delay, gross motor; Gross motor delay; Limited gross motor development; Limited gross motor skills","HPO_Name__c":"Delayed gross motor development","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Rhythmic, involuntary oscillations of one or both eyes related to abnormality in fixation, conjugate gaze, or vestibular mechanisms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000639","HPO_Synonym__c":"Involuntary, rapid, rhythmic eye movements","HPO_Name__c":"Nystagmus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A loss of myelinated nerve fibers in the peripheral nervous system (in general, this finding can be observed on nerve biopsy).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003380","HPO_Synonym__c":"Decreased number of large and small myelinated fibers; Loss of myelinated fibers","HPO_Name__c":"Decreased number of peripheral myelinated nerve fibers","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A decrease in the ability to perceive vibration in the legs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002166","HPO_Synonym__c":"Decreased lower limb vibratory sense; Decreased vibratory sense in lower limbs; Decreased vibratory sense in the lower extremities; Decreased vibratory sense in the lower limbs; Diminished vibratory sensation in the legs; Distal sensory loss, especially vibratory sense; Distal vibratory impairment of the lower limbs; Impaired vibration sensation in the lower limbs","HPO_Name__c":"Impaired vibration sensation in the lower limbs","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A neurological condition related to lesions of the basal ganglia leading to typical abnormalities including akinesia (inability to initiate changes in activity and perform volitional movements rapidly and easily), muscular rigidity (continuous contraction of muscles with constant resistance to passive movement), chorea (widespread arrhythmic movements of a forcible, rapid, jerky, and restless nature), athetosis (inability to sustain the muscles of the fingers, toes, or other group of muscles in a fixed position), and akathisia (inability to remain motionless).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002071","HPO_Synonym__c":"Extrapyramidal dysfunction; Extrapyramidal signs; Extrapyramidal symptoms; Extrapyramidal syndrome; Extrapyramidal tract signs","HPO_Name__c":"Abnormality of extrapyramidal motor function","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increase in height of the medial longitudinal arch of the foot that does not flatten on weight bearing (i.e., a distinctly hollow form of the sole of the foot when it is bearing weight).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001761","HPO_Synonym__c":"Cavus foot; High-arched foot","HPO_Name__c":"Pes cavus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The term gait disturbance can refer to any disruption of the ability to walk.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001288","HPO_Synonym__c":"Abnormal gait; Abnormal walk; Difficulty in walking; Gait abnormalities; Gait difficulties; Gait disturbances; Impaired gait; Walking disability","HPO_Name__c":"Gait disturbance","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormal excessive perspiration (sweating) despite the lack of appropriate stimuli like hot and humid weather.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000975","HPO_Synonym__c":"Diaphoresis; Excessive sweating; Increased sweating; Profuse sweating; Sweating; Sweating profusely; Sweating, increased","HPO_Name__c":"Hyperhidrosis","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007020","HPO_Name__c":"Progressive spastic paraplegia","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An exaggerated startle reaction in response to a sudden unexpected visual or acoustic stimulus, or a quick movement near the face.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002267","HPO_Synonym__c":"Exaggerated acoustic startle response; Increased startle response","HPO_Name__c":"Exaggerated startle response","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Muscular atrophy affecting muscles in the distal portions of the extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003693","HPO_Synonym__c":"Amyotrophy of distal limb muscles; Distal amyotrophy, especially of the hands and feet; Distal limb muscle atrophy; Distal muscle atrophy; Distal muscle atrophy, upper and lower limbs; Distal muscle degeneration; Distal muscle wasting; Distal muscular atrophy; Muscle atrophy, distal","HPO_Name__c":"Distal amyotrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320406","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality characterized by disruption of the normal functioning of peripheral axons.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003477","HPO_Synonym__c":"Axonal neuropathy; Axonal peripheral neuropathy","HPO_Name__c":"Peripheral axonal neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Ophthalmology","Neuro-Ophthalmology","Neuromuscular medicine","Pediatrics"],"Account":["Hereditary Spastic Paraplegia","Peripheral Neuropathy"]},"synonyms":["spastic paraplegia-optic atrophy-neuropathy syndrome"," spastic paraplegia, optic atrophy, and neuropathy"," spastic paraplegia, optic atrophy, neuropathy syndrome"," spastic paraplegia, optic atropy, and neuropathy syndrome"," spoan"," spoan (spastic paraplegia, optic atrophy, neuropathy) syndrome"," spoan syndrome"]}