{"Name":"Syndromic X-linked intellectual disability Hedera type","DiseaseID__c":"GARD:0016834","id":16834,"encodedName":"syndromic-x-linked-intellectual-disability-hedera-type","IsDeleted":false,"Disease_Name_Full__c":"Syndromic X-linked intellectual disability Hedera type","Xref_IDs__c":"C1845543; C564516; DOID:0060806; MEDGEN:337257; MONDO:0010319; OMIM:300423; ORPHA:93952","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":2,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0010319","Disease_Description__c":"X-linked intellectual disability, Hedera type is a rare X-linked intellectual disability syndrome characterized by an onset in infancy of delayed motor and speech milestones, generalized tonic-clonic seizures and drop attacks, and mild to moderate intellectual disability. Additional, less common manifestations include scoliosis, ataxia (resulting in progressive gait disturbance), and bilateral pes planovalgus. Physical appearance is normal with no dysmorphic features reported.","GARD_Name__c":"Syndromic X-linked intellectual disability Hedera type","GARD_Synonym__c":"intellectual developmental disorder, x-linked, syndromic, hedera type; intellectual developmental disorder, x-linked, syndromic, hedera type, x-linked recessive; intellectual disability, x-linked, syndromic, hedera type; mrxe; mrxsh; x-linked intellectual disability hedera type; x-linked intellectual disability with epilepsy; x-linked intellectual disability, hedera type","Curated_Disease_Description_Source__c":"MONDO:0010319","Curated_Disease_Description__c":"X-linked intellectual disability, Hedera type is a rare X-linked intellectual disability syndrome characterized by an onset in infancy of delayed motor and speech milestones, generalized tonic-clonic seizures and drop attacks, and mild to moderate intellectual disability. Additional, less common manifestations include scoliosis, ataxia (resulting in progressive gait disturbance), and bilateral pes planovalgus. Physical appearance is normal with no dysmorphic features reported.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Infant","SourceID__c":"ORPHA:93952","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0010319","ORPHANET_ID__c":"ORPHA:93952","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Discapacidad intelectual ligada al cromosoma x tipo hedera","Spanish_Description_Source__c":"ORPHA:93952","Spanish_Description__c":"La discapacidad intelectual ligada al X tipo Hedera es un síndrome poco frecuente de discapacidad intelectual ligada al X caracterizado por un inicio en la infancia de retraso en los hitos motores y del lenguaje, convulsiones tónico-clónicas generalizadas y ''drop attacks'', y discapacidad intelectual de leve a moderada. Otras manifestaciones menos comunes incluyen escoliosis, ataxia (que produce una alteración progresiva de la marcha) y pie plano-valgo bilateral. La apariencia física es normal, sin características dismórficas descritas.","Spanish_Disease_Name__c":"discapacidad intelectual ligada al cromosoma x tipo hedera","Spanish_GARD_Synonym__c":null,"Category_Linearization__c":"ORPHA:93890","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":"X-linked intellectual disability, Hedera type is a rare X-linked intellectual disability syndrome characterized by an onset in infancy of delayed motor and speech milestones, generalized tonic-clonic seizures and drop attacks, and mild to moderate intellectual disability. Additional, less common manifestations include scoliosis, ataxia (resulting in progressive gait disturbance), and bilateral pes planovalgus. Physical appearance is normal with no dysmorphic features reported.","Curated_Disease_Description_Source__c":"MONDO:0010319","GARD_Synonym__c":"intellectual developmental disorder, x-linked, syndromic, hedera type; intellectual developmental disorder, x-linked, syndromic, hedera type, x-linked recessive; intellectual disability, x-linked, syndromic, hedera type; mrxe; mrxsh; x-linked intellectual disability hedera type; x-linked intellectual disability with epilepsy; x-linked intellectual disability, hedera type","Name":"Syndromic X-linked intellectual disability Hedera type","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"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":"Neurodevelopmental disabilities","Tag_Category__c":"Specialist","curated_tag_name":"Neurodevelopmental disabilities"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:93952"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.orpha.net/en/disease/detail/93952","Source__c":"C1845543; MONDO:0010319; ORPHA:93952","Xref__c":"ORPHA:93952"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C564516","Source__c":"MONDO:0010319","Xref__c":"C564516"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=337257","Source__c":"C1845543","Xref__c":"MEDGEN:337257"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0060806","Source__c":"MONDO:0010319","Xref__c":"DOID:0060806"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C1845543","Source__c":"C1845543","Xref__c":"C1845543"},{"URL__c":"https://www.omim.org/entry/300423","Source__c":"C1845543; MONDO:0010319; ORPHA:93952","Xref__c":"OMIM:300423"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=726727003","Source__c":"C1845543","Xref__c":"726727003"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0010319","Source__c":"GARD:0016834","Xref__c":"MONDO:0010319"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"ATP6AP2","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["X-linked recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Habitual flow of saliva out of the mouth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002307","HPO_Synonym__c":"Dribbling; Drooling; Sialorrhea","HPO_Name__c":"Drooling","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A defect in the understanding of complex motor commands and in the execution of certain learned movements, i.e., deficits in the cognitive components of learned movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002186","HPO_Name__c":"Apraxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","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:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Cerebellar atrophy is defined as a cerebellum with initially normal structures, in a posterior fossa with normal size, which displays enlarged fissures (interfolial spaces) in comparison to the foliae secondary to loss of tissue. Cerebellar atrophy implies irreversible loss of tissue and result from an ongoing progressive disease until a final stage is reached or a single injury, e.g. an intoxication or infectious event.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001272","HPO_Synonym__c":"Atrophic cerebellum; Degeneration of cerebellum","HPO_Name__c":"Cerebellar atrophy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"This is a postural deformity in which the foot is positioned up against the tibia. The heel (calcaneus) is positioned downward (that is, the ankle is flexed upward), and the heel is turned outward (valgus).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001848","HPO_Synonym__c":"Calcaneovalgus; Calcaneovalgus Foot; Valgus position of the calcaneus","HPO_Name__c":"Calcaneovalgus deformity","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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":"ORPHA:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002317","HPO_Synonym__c":"Gait instability; Unsteady walk","HPO_Name__c":"Unsteady gait","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Echolalia is the automatic imitative repetition of sounds, words, or phrases in the absence of explicit awareness. The repeated words or phrases are typically odd or used in a non-social manner. These can be words or phrases that the affected individual has heard or invented.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010529","HPO_Synonym__c":"Echoing another person's speech; Echologia; Echophrasia; Repeated speech","HPO_Name__c":"Echolalia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A tremor present when the limbs are active, either when outstretched in a certain position or throughout a voluntary movement.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002345","HPO_Name__c":"Action tremor","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Enlargement or increased size of the heart left ventricle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001712","HPO_Synonym__c":"Heart left ventricle hypertrophy; Left ventricular wall hypertrophy","HPO_Name__c":"Left ventricular hypertrophy","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A foot where the longitudinal arch of the foot is in contact with the ground or floor when the individual is standing; or, in a patient lying supine, a foot where the arch is in contact with the surface of a flat board pressed against the sole of the foot by the examiner with a pressure similar to that expected from weight bearing; or, the height of the arch is reduced.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001763","HPO_Synonym__c":"Flat feet; Flat foot","HPO_Name__c":"Pes planus","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Very frequent (80-99%)","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":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A reduced degree of motion of the muscles beneath the skin of the face, often associated with reduced facial crease formation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000338","HPO_Synonym__c":"Dull facial expression; Hypomimia","HPO_Name__c":"Hypomimic face","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Muscular rigidity (continuous contraction of muscles with constant resistance to passive movement).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007076","HPO_Name__c":"Extrapyramidal muscular rigidity","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Tactile agnosia refers to the inability to recognize objects by touch, while the inability to discriminate shape and size by touch is also a related condition.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010527","HPO_Synonym__c":"Astereognosis; Somatosensory agnosia","HPO_Name__c":"Astereognosis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Abnormal coordination of muscles involved in speech.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001350","HPO_Synonym__c":"Slurred speech","HPO_Name__c":"Slurred speech","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Incapability to ambulate.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002540","HPO_Synonym__c":"Inability to walk; Non-ambulatory","HPO_Name__c":"Inability to walk","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Accumulation of substantial excess body fat.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001513","HPO_Synonym__c":"Having too much body fat; Obesity","HPO_Name__c":"Obesity","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A degree of language development that is significantly below the norm for a child of a specified age.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000750","HPO_Synonym__c":"Deficiency of speech development; Delayed language development; Delayed speech; Delayed speech acquisition; Delayed speech and language development; Delayed speech development; Impaired speech and language development; Impaired speech development; Language delay; Language delayed; Language development deficit; Late-onset speech development; Poor language development; Speech and language delay; Speech and language difficulties; Speech delay","HPO_Name__c":"Delayed speech and language development","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A type of Developmental delay characterized by a delay in acquiring motor skills.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001270","HPO_Synonym__c":"Delay in development of motor milestones; Delay in motor development; Delayed development of motor milestones; Delayed early motor milestones; Delayed motor development; Delayed motor milestones; Locomotor delay; Motor developmental delay; Motor developmental milestones not achieved; Motor retardation; Retarded motor development; Slow development of motor milestones","HPO_Name__c":"Motor delay","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Atonic seizure is a type of motor seizure characterized by a sudden loss or diminution of muscle tone without apparent preceding myoclonic or tonic event lasting about 1 to 2 seconds, involving head, trunk, jaw, or limb musculature.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010819","HPO_Synonym__c":"Astatic seizure; Astatic seizures; Atonic seizures; Drop attacks; Drop seizures; Hypotonic seizure","HPO_Name__c":"Atonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","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:93952","HPO_Frequency__c":"Occasional (5-29%)","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":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduced intensity (volume) of speech.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001621","HPO_Synonym__c":"Quiet voice; Soft voice; Weak voice","HPO_Name__c":"Weak voice","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Impaired ability to recognize letters or numbers drawn by an examiner's fingertip on the patient's skin (the patients eyes are closed or covered throughout this examination).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011812","HPO_Name__c":"Agraphesthesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced intensity of muscle tendon reflexes in the upper 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:0012391","HPO_Name__c":"Hyporeflexia of upper limbs","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:93952","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"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology"],"Specialist":["Genetics","Neurology","Epilepsy","Neurodevelopmental disabilities","Pediatrics"],"Account":["Epilepsy"]},"synonyms":["intellectual developmental disorder, x-linked, syndromic, hedera type"," intellectual developmental disorder, x-linked, syndromic, hedera type, x-linked recessive"," intellectual disability, x-linked, syndromic, hedera type"," mrxe"," mrxsh"," x-linked intellectual disability hedera type"," x-linked intellectual disability with epilepsy"," x-linked intellectual disability, hedera type"]}