{"Name":"Hereditary spastic paraplegia 75","DiseaseID__c":"GARD:0017813","id":17813,"encodedName":"hereditary-spastic-paraplegia-75","IsDeleted":false,"Disease_Name_Full__c":"Hereditary spastic paraplegia 75","Xref_IDs__c":"C4225250; DOID:0110820; MEDGEN:896387; MONDO:0014729; OMIM:616680; ORPHA:459056","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":5,"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:0014729","Disease_Description__c":"Any hereditary spastic paraplegia in which the cause of the disease is a mutation in the MAG gene.","GARD_Name__c":"Hereditary spastic paraplegia 75","GARD_Synonym__c":"autosomal recessive spastic paraplegia 75; autosomal recessive spastic paraplegia type 75; hereditary spastic paraplegia caused by mutation in mag; hereditary spastic paraplegia type 75; mag hereditary spastic paraplegia; spastic paraplegia 75, autosomal recessive; spg75","Curated_Disease_Description_Source__c":"ORPHA:459056","Curated_Disease_Description__c":"Autosomal recessive spastic paraplegia type 75 is a rare, complex hereditary spastic paraplegia characterized by an early onset and slow progression of spastic paraplegia associated with cerebellar signs, nystagmus, peripheral neuropathy, extensor plantar responses and borderline to mild intellectual disability. Additional features of hypo- or areflexia, mild upper limb involvement and significant visual impairment (optic atrophy, vision loss, astigmatism) have been reported.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as a Child","SourceID__c":"ORPHA:459056","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0014729","ORPHANET_ID__c":"ORPHA:459056","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Paraplejía espástica autosómica recesiva tipo 75","Spanish_Description_Source__c":null,"Spanish_Description__c":null,"Spanish_Disease_Name__c":"paraplejía espástica autosómica recesiva tipo 75","Spanish_GARD_Synonym__c":"spg75","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":"Autosomal recessive spastic paraplegia type 75 is a rare, complex hereditary spastic paraplegia characterized by an early onset and slow progression of spastic paraplegia associated with cerebellar signs, nystagmus, peripheral neuropathy, extensor plantar responses and borderline to mild intellectual disability. Additional features of hypo- or areflexia, mild upper limb involvement and significant visual impairment (optic atrophy, vision loss, astigmatism) have been reported.","Curated_Disease_Description_Source__c":"ORPHA:459056","GARD_Synonym__c":"autosomal recessive spastic paraplegia 75; autosomal recessive spastic paraplegia type 75; hereditary spastic paraplegia caused by mutation in mag; hereditary spastic paraplegia type 75; mag hereditary spastic paraplegia; spastic paraplegia 75, autosomal recessive; spg75","Name":"Hereditary spastic paraplegia 75","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":"Hereditary Spastic Paraplegia","Tag_Category__c":"Account","curated_tag_name":"Hereditary spastic paraplegia"},{"Tag_Name__c":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"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:459056"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.orpha.net/en/disease/detail/459056","Source__c":"C4225250; MONDO:0014729; ORPHA:459056","Xref__c":"ORPHA:459056"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=896387","Source__c":"C4225250","Xref__c":"MEDGEN:896387"},{"URL__c":"https://www.omim.org/entry/616680","Source__c":"C4225250; MONDO:0014729; ORPHA:459056","Xref__c":"OMIM:616680"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0110820","Source__c":"MONDO:0014729","Xref__c":"DOID:0110820"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C4225250","Source__c":"C4225250","Xref__c":"C4225250"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0014729","Source__c":"GARD:0017813","Xref__c":"MONDO:0014729"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=1187470001","Source__c":"C4225250","Xref__c":"1187470001"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"MAG","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of refraction error associated with abnormal curvatures on the anterior and/or posterior surface of the cornea.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000483","HPO_Synonym__c":"Abnormal curving of the cornea or lens of the eye; Astigmatism","HPO_Name__c":"Astigmatism","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Upturning of the big toe (and sometimes fanning of the other toes) in response to stimulation of the sole of the foot. If the Babinski sign is present it can indicate damage to the corticospinal tract.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003487","HPO_Synonym__c":"Extensor plantar reflexes; Extensor plantar response; Extensor plantar responses; Positive Babinski sign","HPO_Name__c":"Babinski sign","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","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":"ORPHA:459056","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Nodding movement of the head or body.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030187","HPO_Name__c":"Titubation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Frequent (30-79%)","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:459056","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Generalized muscular hypotonia (abnormally low muscle tone).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001290","HPO_Synonym__c":"Generalized decreased muscle tone; Generalized muscular hypotonia; Hypotonia, generalized","HPO_Name__c":"Generalized hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A pale yellow discoloration of the temporal (lateral) portion of the optic disc.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012511","HPO_Name__c":"Temporal optic disc pallor","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of ataxia characterized by the inability to carry out movements with the correct range and motion across the plane of more than one joint related to incorrect estimation of the distances required for targeted movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001310","HPO_Synonym__c":"Lack of coordination of movement","HPO_Name__c":"Dysmetria","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A decrease in the ability to perceive vibration. Clinically, this is usually tested with a tuning fork which vibrates at 128 Hz and is applied to bony prominences such as the malleoli at the ankles or the metacarpal-phalangeal joints. There is a slow decay of vibration from the tuning fork. The degree of vibratory sense loss can be crudely estimated by counting the number of seconds that the examiner can perceive the vibration longer than the patient.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002495","HPO_Synonym__c":"Decreased vibration sense; Decreased vibratory sense; Diminished vibratory sense; Hypopallesthesia; Impaired vibratory sensation; Impaired vibratory sense","HPO_Name__c":"Impaired vibratory sensation","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Complete loss of the ability to move the lower limbs accompanied by spasticity of the lower limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001258","HPO_Synonym__c":"Spastic paraplegia, lower limb","HPO_Name__c":"Spastic paraplegia","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"The term intellectual disability or intellectual developmental disorder is used to describe significantly sub-average intellectual and adaptive functioning based on clinical assessment and as measured by individually administered, appropriately normed, standardized and validated tests of intellectual functioning and adaptive behavior, with onset during the developmental period from infancy through adolescence.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001249","HPO_Synonym__c":"Intellectual disability; Mental deficiency; Mental retardation; Mental retardation, nonspecific; Mental-retardation; Nonprogressive intellectual disability; Nonprogressive mental retardation","HPO_Name__c":"Intellectual disability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","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:459056","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Functional neurological abnormalities related to dysfunction of the pyramidal tract.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007256","HPO_Synonym__c":"Corticospinal signs; Pyramidal signs; Pyramidal tract signs","HPO_Name__c":"Abnormal pyramidal sign","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Very frequent (80-99%)","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":"ORPHA:459056","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduction of neurologic reflexes such as the knee-jerk reaction.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001265","HPO_Synonym__c":"Decreased reflex response; Decreased reflexes","HPO_Name__c":"Hyporeflexia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:459056","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of refraction characterized by the ability to see objects in the distance clearly, while objects nearby appear blurry.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000540","HPO_Synonym__c":"Farsightedness; Hyperopia; Long-sightedness","HPO_Name__c":"Hypermetropia","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Neurodevelopmental disabilities","Neuromuscular medicine","Pediatrics"],"Account":["Hereditary Spastic Paraplegia"]},"synonyms":["autosomal recessive spastic paraplegia 75"," autosomal recessive spastic paraplegia type 75"," hereditary spastic paraplegia caused by mutation in mag"," hereditary spastic paraplegia type 75"," mag hereditary spastic paraplegia"," spastic paraplegia 75, autosomal recessive"," spg75"]}