{"Name":"Hereditary spastic paraplegia 43","DiseaseID__c":"GARD:0017473","id":17473,"encodedName":"hereditary-spastic-paraplegia-43","IsDeleted":false,"Disease_Name_Full__c":"Hereditary spastic paraplegia 43","Xref_IDs__c":"764736001; C2680446; DOID:0110795; MEDGEN:760531; MONDO:0014024; OMIM:615043; ORPHA:320370","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":2,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":2,"Description_Source__c":"MONDO:0014024","Disease_Description__c":"Autosomal recessive spastic paraplegia type 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported.","GARD_Name__c":"Hereditary spastic paraplegia 43","GARD_Synonym__c":"autosomal recessive complex spastic paraplegia caused by mutation in c19orf12; autosomal recessive spastic paraplegia 43; autosomal recessive spastic paraplegia type 43; c19orf12 autosomal recessive complex spastic paraplegia; hereditary spastic paraplegia type 43; spastic paraplegia 43, autosomal recessive; spg43","Curated_Disease_Description_Source__c":"MONDO:0014024","Curated_Disease_Description__c":"Autosomal recessive spastic paraplegia type 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as a Child and as a Teenager","SourceID__c":"ORPHA:320370","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0014024","ORPHANET_ID__c":"ORPHA:320370","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Paraplejía espástica autosómica recesiva tipo 43","Spanish_Description_Source__c":"ORPHA:320370","Spanish_Description__c":"La paraparesia espástica autosómica recesiva tipo 43 es una paraparesia espástica de herencia compleja y poco frecuente, que se caracteriza por un inicio en la infancia o adolescencia de espasticidad progresiva de las extremidades inferiores asociada con trastornos de la marcha de leves a graves, respuestas plantares extensoras, debilidad muscular y atrofia distal grave, con afectación frecuente de las extremidades superiores. Otras características adicionales pueden incluir contracturas articulares, pérdida de sensibilidad distal y reflejos tendinosos vivos o ausentes. También se han notificado otros signos, tales como depresión, pérdida de memoria, atrofia óptica (con pérdida de visión) y acúmulo cerebral de hierro (observados en neuroimagen).","Spanish_Disease_Name__c":"paraplejía espástica autosómica recesiva tipo 43","Spanish_GARD_Synonym__c":"spg43","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 43 is a rare, complex hereditary spastic paraplegia characterized by a childhood to adolescent onset of progressive lower limb spasticity, associated with mild to severe gait disturbances, extensor plantar responses, muscle weakness and severe distal atrophy, frequently with upper limb involvement. Additional features may include joint contractures, distal sensory loss and brisk or absent deep tendon reflexes. Other signs, such as depression, memory loss, optic atrophy (with vision loss) and brain iron deposition (revealed by brain imagery), have also been reported.","Curated_Disease_Description_Source__c":"MONDO:0014024","GARD_Synonym__c":"autosomal recessive complex spastic paraplegia caused by mutation in c19orf12; autosomal recessive spastic paraplegia 43; autosomal recessive spastic paraplegia type 43; c19orf12 autosomal recessive complex spastic paraplegia; hereditary spastic paraplegia type 43; spastic paraplegia 43, autosomal recessive; spg43","Name":"Hereditary spastic paraplegia 43","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":"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":"Adolescent","Provided_By__c":"ORPHA:320370"},{"Age_At_Onset__c":"Childhood","Provided_By__c":"ORPHA:320370"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=760531","Source__c":"C2680446","Xref__c":"MEDGEN:760531"},{"URL__c":"https://www.omim.org/entry/615043","Source__c":"C2680446; MONDO:0014024; ORPHA:320370","Xref__c":"OMIM:615043"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=764736001","Source__c":"C2680446; MONDO:0014024","Xref__c":"764736001"},{"URL__c":"https://www.orpha.net/en/disease/detail/320370","Source__c":"C2680446; MONDO:0014024; ORPHA:320370","Xref__c":"ORPHA:320370"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C2680446","Source__c":"C2680446","Xref__c":"C2680446"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0110795","Source__c":"MONDO:0014024","Xref__c":"DOID:0110795"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0014024","Source__c":"GARD:0017473","Xref__c":"MONDO:0014024"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"C19orf12","GHR_URL__c":"https://medlineplus.gov/genetics/gene/c19orf12","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Frequent (30-79%)","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:320370","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:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Tendon reflexes that are noticeably more active than usual (conventionally denoted 3+ on clinical examination). Brisk reflexes may or may not indicate a neurological lesion. They are distinguished from hyperreflexia by the fact that hyerreflexia is characterized by hyperactive repeating (clonic) reflexes, which are considered to be always abnormal.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001348","HPO_Synonym__c":"Brisk deep tendon reflexes","HPO_Name__c":"Brisk reflexes","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Partial 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:0002313","HPO_Name__c":"Spastic paraparesis","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","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:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007083","HPO_Synonym__c":"Hyperreflexia in knees; Overactive knee reflex","HPO_Name__c":"Hyperactive patellar reflex","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Spasticity is manifested by increased stretch reflex which is intensified with movement velocity. This results in excessive and inappropriate muscle activation which can contribute to muscle hypertonia. Spastic gait is characterized by manifestations such as muscle hypertonia, stiff knee, and circumduction of the leg.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002064","HPO_Synonym__c":"Spastic walk","HPO_Name__c":"Spastic gait","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Chronic loss of joint motion in a finger due to structural changes in non-bony tissue.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012785","HPO_Synonym__c":"Flexion deformity of finger","HPO_Name__c":"Flexion contracture of finger","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006466","HPO_Name__c":"Ankle flexion contracture","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Reduced strength of the musculature of the distal extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002460","HPO_Synonym__c":"Distal limb muscle weakness; Distal limb weakness; Distal muscular weakness; Distal paresis; Muscle weakness, distal; Muscle weakness, distal limbs, due to neuronopathy; Weakness of distal muscles; Weakness of outermost muscles","HPO_Name__c":"Distal muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Absence of the Achilles reflex (also known as the ankle jerk reflex), which can normally be elicited by tapping the tendon is tapped while the foot is dorsiflexed.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003438","HPO_Synonym__c":"Absent ankle reflexes","HPO_Name__c":"Absent Achilles reflex","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of the ability (skills) to perform a precise movement of small muscles with the intent to perform a specific act. Fine motor skills are required to mediate movements of the wrists, hands, fingers, feet, and toes.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007010","HPO_Synonym__c":"Fine motor disability; Fine motor impairment; Fine motor skill dysfunction; Impaired fine motor skills","HPO_Name__c":"Poor fine motor coordination","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:320370","HPO_Frequency__c":"Very frequent (80-99%)","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:320370","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:320370","HPO_Frequency__c":"Frequent (30-79%)","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:320370","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:320370","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of knee joint contracture in which the knee is in a fixed bent (flexed) configuration such that it cannot be straightened actively or passively.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006380","HPO_Synonym__c":"Flexion contracture of knees; Flexion contractures at both knees; Flexion contractures of knees; Flexion deformity of the knee; Knee flexion contractures; Knee flexion deformity","HPO_Name__c":"Knee flexion contracture","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Neuromuscular medicine","Pediatrics"],"Account":["Hereditary Spastic Paraplegia"]},"synonyms":["autosomal recessive complex spastic paraplegia caused by mutation in c19orf12"," autosomal recessive spastic paraplegia 43"," autosomal recessive spastic paraplegia type 43"," c19orf12 autosomal recessive complex spastic paraplegia"," hereditary spastic paraplegia type 43"," spastic paraplegia 43, autosomal recessive"," spg43"]}