{"Name":"McLeod neuroacanthocytosis syndrome","DiseaseID__c":"GARD:0010731","id":10731,"encodedName":"mcleod-neuroacanthocytosis-syndrome","IsDeleted":false,"Disease_Name_Full__c":"McLeod neuroacanthocytosis syndrome","Xref_IDs__c":"234411007; 724172004; C0398568; C564038; DOID:0112107; MEDGEN:140765; MONDO:0018945; NBK1354; OMIM:300842; ORPHA:59306","USA_Estimate__c":"1,000","No_of_Specialist_Tagsa__c":6,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":1,"No_of_HHS_records__c":1,"World_Estimate__c":"1 to 8,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":3,"No_of_Disease_Descriptions__c":5,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0018945","Disease_Description__c":"McLeod neuroacanthocytosis syndrome (MLS) is a form of neuroacanthocytosis (see this term) and is characterized clinically by a Huntington's disease-like phenotype with an involuntary hyperkinetic movement disorder, psychiatric manifestations and cognitive alterations, and biochemically by absence of the Kx antigen and by weak expression of the Kell antigens.","GARD_Name__c":"McLeod neuroacanthocytosis syndrome","GARD_Synonym__c":"blood group deletion syndrome; mclds; mcleod phenotype; mcleod syndrome; mcleod syndrome with or without chronic granulomatous disease; mls; neuroacanthocytosis, mcleod type; x-linked mcleod syndrome","Curated_Disease_Description_Source__c":"GARD:0010731","Curated_Disease_Description__c":"McLeod neuroacanthocytosis syndrome is primarily a neurological disorder that occurs almost exclusively in boys and men. This disorder affects movement in many parts of the body. People with McLeod neuroacanthocytosis syndrome also have abnormal star-shaped red blood cells (acanthocytosis). This condition is one of a group of disorders called neuroacanthocytoses that involve neurological problems and abnormal red blood cells. McLeod neuroacanthocytosis syndrome affects the brain and spinal cord (central nervous system). Affected individuals have involuntary movements, including jerking motions (chorea), particularly of the arms and legs, and muscle tensing (dystonia) in the face and throat, which can cause grimacing and vocal tics (such as grunting and clicking noises). Dystonia of the tongue can lead to swallowing difficulties. Seizures occur in approximately half of all people with McLeod neuroacanthocytosis syndrome. Individuals with this condition may develop difficulty processing, learning, and remembering information (cognitive impairment). They may also develop psychiatric disorders, such as depression, bipolar disorder, psychosis, or obsessive-compulsive disorder. People with McLeod neuroacanthocytosis syndrome also have problems with their muscles, including muscle weakness (myopathy) and muscle degeneration (atrophy). Sometimes, nerves that connect to muscles atrophy (neurogenic atrophy), leading to loss of muscle mass and impaired movement. Individuals with McLeod neuroacanthocytosis syndrome  may also have reduced sensation and weakness in their arms and legs (peripheral neuropathy). Life-threatening heart problems such as irregular heartbeats (arrhythmia) and a weakened and enlarged heart (dilated cardiomyopathy) are common in individuals with this disorder. The signs and symptoms of McLeod neuroacanthocytosis syndrome usually begin in mid-adulthood. Behavioral changes, such as lack of self-restraint, the inability to take care of oneself, anxiety, depression, and changes in personality may be the first signs of this condition.  While these behavioral changes are typically not progressive, the movement and muscle problems and intellectual impairments tend to worsen with age.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"1,000","Age_at_Onset_Snippet_Text__c":"as an Adult","SourceID__c":"ORPHA:59306","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0018945","ORPHANET_ID__c":"ORPHA:59306","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Síndrome de neurocantocitosis de mcleod","Spanish_Description_Source__c":"ORPHA:59306","Spanish_Description__c":"El síndrome de neuroacantocitosis de McLeod (SML) es una forma de neuroacantocitosis caracterizada clínicamente por un fenotipo similar al de la enfermedad de Huntington (HD), con un trastorno del movimiento hipercinético involuntario, manifestaciones psiquiátricas y alteraciones cognitivas, y biomédicamente por la ausencia del antígeno Kx y por una expresión débil de los antígenos Kell.","Spanish_Disease_Name__c":"síndrome de neurocantocitosis de mcleod","Spanish_GARD_Synonym__c":null,"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":"McLeod neuroacanthocytosis syndrome is primarily a neurological disorder that occurs almost exclusively in boys and men. This disorder affects movement in many parts of the body. People with McLeod neuroacanthocytosis syndrome also have abnormal star-shaped red blood cells (acanthocytosis). This condition is one of a group of disorders called neuroacanthocytoses that involve neurological problems and abnormal red blood cells. McLeod neuroacanthocytosis syndrome affects the brain and spinal cord (central nervous system). Affected individuals have involuntary movements, including jerking motions (chorea), particularly of the arms and legs, and muscle tensing (dystonia) in the face and throat, which can cause grimacing and vocal tics (such as grunting and clicking noises). Dystonia of the tongue can lead to swallowing difficulties. Seizures occur in approximately half of all people with McLeod neuroacanthocytosis syndrome. Individuals with this condition may develop difficulty processing, learning, and remembering information (cognitive impairment). They may also develop psychiatric disorders, such as depression, bipolar disorder, psychosis, or obsessive-compulsive disorder. People with McLeod neuroacanthocytosis syndrome also have problems with their muscles, including muscle weakness (myopathy) and muscle degeneration (atrophy). Sometimes, nerves that connect to muscles atrophy (neurogenic atrophy), leading to loss of muscle mass and impaired movement. Individuals with McLeod neuroacanthocytosis syndrome  may also have reduced sensation and weakness in their arms and legs (peripheral neuropathy). Life-threatening heart problems such as irregular heartbeats (arrhythmia) and a weakened and enlarged heart (dilated cardiomyopathy) are common in individuals with this disorder. The signs and symptoms of McLeod neuroacanthocytosis syndrome usually begin in mid-adulthood. Behavioral changes, such as lack of self-restraint, the inability to take care of oneself, anxiety, depression, and changes in personality may be the first signs of this condition.  While these behavioral changes are typically not progressive, the movement and muscle problems and intellectual impairments tend to worsen with age.","Curated_Disease_Description_Source__c":"GARD:0010731","GARD_Synonym__c":"blood group deletion syndrome; mclds; mcleod phenotype; mcleod syndrome; mcleod syndrome with or without chronic granulomatous disease; mls; neuroacanthocytosis, mcleod type; x-linked mcleod syndrome","Name":"McLeod neuroacanthocytosis syndrome","Curated_USA_Estimate__c":"1,000","estimateUsa":"1,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Neuroacanthocytosis Advocacy USA","Website__c":"https://www.naadvocacyusa.org/"},{"Account_Name__c":"Advocacy for Neuroacanthocytosis Patients","Website__c":"https://naadvocacy.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":"Cardiology","Tag_Category__c":"Specialist"},{"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":"Psychiatry","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Hematology","Tag_Category__c":"Disease Category;Specialist","category_description":"Blood diseases affect the blood or blood-forming organs, including red blood cells, white blood cells, platelets, plasma, and bone marrow.","curated_tag_name":"Blood diseases"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"Tag_Name__c":"Cardiomyopathy","Tag_Category__c":"Account","curated_tag_name":"Cardiomyopathy"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Adult","Provided_By__c":"ORPHA:59306"}],"External_Identifier_Disease__c":[{"URL__c":"https://raresource.nih.gov/diseases/filter/0010731","Source__c":"RareSource"},{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1354","Source__c":"Gene Review","Xref__c":"NBK1354"},{"URL__c":"https://www.omim.org/entry/300842","Source__c":"C0398568; MONDO:0018945","Xref__c":"OMIM:300842"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=234411007","Source__c":"C0398568; MONDO:0018945","Xref__c":"234411007"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C564038","Source__c":"MONDO:0018945","Xref__c":"C564038"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0398568","Source__c":"C0398568","Xref__c":"C0398568"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0112107","Source__c":"MONDO:0018945","Xref__c":"DOID:0112107"},{"URL__c":"https://www.orpha.net/en/disease/detail/59306","Source__c":"C0398568; MONDO:0018945","Xref__c":"ORPHA:59306"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=140765","Source__c":"C0398568","Xref__c":"MEDGEN:140765"},{"URL__c":"https://medlineplus.gov/genetics/condition/mcleod-neuroacanthocytosis-syndrome","Source__c":"GARD:0010731","Xref__c":"https://medlineplus.gov/genetics/condition/mcleod-neuroacanthocytosis-syndrome"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0018945","Source__c":"GARD:0010731","Xref__c":"MONDO:0018945"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=724172004","Source__c":"C0398568","Xref__c":"724172004"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"XK","GHR_URL__c":"https://medlineplus.gov/genetics/gene/xk","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["X-linked recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced strength of muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001324","HPO_Synonym__c":"Muscle weakness; Muscular weakness","HPO_Name__c":"Muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormal increased size of the spleen.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001744","HPO_Synonym__c":"Increased spleen size; Large spleen","HPO_Name__c":"Splenomegaly","Feature_System__c":"Cardiovascular System; Immune System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"Intense feelings of nervousness, tension, or panic often arise in response to interpersonal stresses. There is worry about the negative effects of past unpleasant experiences and future negative possibilities. Individuals may feel fearful, apprehensive, or threatened by uncertainty, and they may also have fears of falling apart or losing control.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000739","HPO_Synonym__c":"Anxiety; Anxiousness; Excessive, persistent worry and fear","HPO_Name__c":"Anxiety","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","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":"OMIM:300842","Feature__r":{"HPO_Description__c":"A generalized-onset seizure is a type of seizure originating at some point within, and rapidly engaging, bilaterally distributed networks. The networks may include cortical and subcortical structures but not necessarily the entire cortex.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002197","HPO_Synonym__c":"Generalized onset seizure; Generalized seizures; Generalized-onset seizures; Primary generalized seizure","HPO_Name__c":"Generalized-onset seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A myocardial disorder in which the heart muscle is structurally and functionally abnormal, in the absence of coronary artery disease, hypertension, valvular disease and congenital heart disease sufficient to cause the observed myocardial abnormality.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001638","HPO_Synonym__c":"Disease of the heart muscle","HPO_Name__c":"Cardiomyopathy","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"A personality disorder is a deeply ingrained pattern of behavior of a specified kind that deviates markedly from the norms of generally accepted behavior. It is typically apparent by the time of adolescence and causes long-term difficulties in personal relationships or functioning in society.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012075","HPO_Name__c":"Personality disorder","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A decrease in the ability to perceive vibration at the ankles. Clinically, this is usually tested with a tuning fork which vibrates at 128 Hz and is applied to the malleoli of the ankles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006938","HPO_Synonym__c":"Decreased vibration sense at ankles; Decreased vibration sense in feet; Impaired vibration sensation at ankles","HPO_Name__c":"Impaired vibration sensation at ankles","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"A movement disorder which consists of effects including diminished voluntary movements and the presence of involuntary movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100660","HPO_Synonym__c":"Disorder of involuntary muscle movements; Dyskinesis","HPO_Name__c":"Dyskinesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The concentration of aspartate aminotransferase (AST) in the blood circulation is above the upper limit of normal.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0031956","HPO_Synonym__c":"Aspartate aminotransferase increased; Elevated serum aspartate aminotransferase; Elevated serum AST; Elevated serum glutamic oxaloacetic transaminase","HPO_Name__c":"Elevated circulating aspartate aminotransferase concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A seizure is an intermittent abnormality of nervous system physiology characterized by a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001250","HPO_Synonym__c":"Epileptic seizure; Seizures","HPO_Name__c":"Seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Increased level of the enzyme gamma-glutamyltransferase (GGT). GGT is mainly present in kidney, liver, and pancreatic cells, but small amounts are present in other tissues.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030948","HPO_Synonym__c":"Elevated serum GGT","HPO_Name__c":"Elevated gamma-glutamyltransferase level","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Breakdown of muscle fibers that leads to the release of muscle fiber contents (myoglobin) into the bloodstream.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003201","HPO_Synonym__c":"Breakdown of skeletal muscle","HPO_Name__c":"Rhabdomyolysis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally high concentration in the circulation of alanine aminotransferase (ALT).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0031964","HPO_Synonym__c":"Alanine aminotransferase increased; Elevated serum alanine aminotransferase; Elevated serum ALT; Elevated serum glutamic-pyruvic transaminase","HPO_Name__c":"Elevated circulating alanine aminotransferase concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormally low concentration of haptoglobin in the blood circulation. Decreased haptoglobin in conjunction with increased reticulocyte count and anemia may indicate hemolysis. Decreased haptoglobin levels can also occur in the absence of hemolysis, due to cirrhosis of the liver, disseminated ovarian carcinomatosis, pulmonary sarcoidosis, and elevated estrogen state.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0020181","HPO_Name__c":"Reduced haptoglobin level","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Abnormally increased size of the liver.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002240","HPO_Synonym__c":"Enlarged liver","HPO_Name__c":"Hepatomegaly","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Acanthocytosis is a type of poikilocytosis characterized by the presence of spikes on the cell surface. The cells have an irregular shape resembling many-pointed stars.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001927","HPO_Synonym__c":"Acanthocytes; Red cell acanthocytosis","HPO_Name__c":"Acanthocytosis","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Dilated cardiomyopathy (DCM) is defined by the presence of left ventricular dilatation and left ventricular systolic dysfunction in the absence of abnormal loading conditions (hypertension, valve disease) or coronary artery disease sufficient to cause global systolic impairment. Right ventricular dilation and dysfunction may be present but are not necessary for the diagnosis.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001644","HPO_Synonym__c":"Cardiomyopathy, dilated; Congestive cardiomyopathy; DCM; Stretched and thinned heart muscle","HPO_Name__c":"Dilated cardiomyopathy","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"Behavior that consists of repetitive acts, characterized by the feeling that one \\\"has to\\\" perform them, while being aware that these acts are not in line with one's overall goal.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000722","HPO_Synonym__c":"Obsessive compulsive behavior; Obsessive compulsive disorder; Obsessive-compulsive behavior; Obsessive-compulsive disorder; OCD","HPO_Name__c":"Compulsive behaviors","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An elevation of the level of the enzyme creatine kinase (also known as creatine phosphokinase (CK; EC 2.7.3.2) in the blood. CK levels can be elevated in a number of clinical disorders such as myocardial infarction, rhabdomyolysis, and muscular dystrophy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003236","HPO_Synonym__c":"Elevated blood creatine phosphokinase; Elevated circulating creatine phosphokinase; Elevated creatine kinase; Elevated serum CPK; Elevated serum creatine kinase; Elevated serum creatine phosphokinase; High serum creatine kinase; Increased CPK; Increased creatine kinase; Increased creatine phosphokinase; Increased serum CK; Increased serum creatine kinase; Increased serum creatine phosphokinase","HPO_Name__c":"Elevated circulating creatine kinase concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Inability to elicit tendon reflexes in the upper limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0012046","HPO_Name__c":"Areflexia of upper limbs","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An atrial arrhythmia characterized by disorganized atrial activity without discrete P waves on the surface EKG, but instead by an undulating baseline or more sharply circumscribed atrial deflections of varying amplitude an frequency ranging from 350 to 600 per minute.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0005110","HPO_Synonym__c":"Quivering upper heart chambers resulting in irregular heartbeat","HPO_Name__c":"Atrial fibrillation","Feature_System__c":"Cardiovascular System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","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":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An elevated level of the enzyme lactate dehydrogenase in the blood circulation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0025435","HPO_Synonym__c":"Increased circulating LDH concentration; Increased lactate dehydrogenase level","HPO_Name__c":"Increased circulating lactate dehydrogenase concentration","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Frequent (30-79%)","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"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A disorder of muscle unrelated to impairment of innervation or neuromuscular junction.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003198","HPO_Synonym__c":"Muscle tissue disease; Myopathic changes","HPO_Name__c":"Myopathy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Chorea (Greek for 'dance') refers to widespread arrhythmic involuntary movements of a forcible, jerky and restless fashion. It is a random-appearing sequence of one or more discrete involuntary movements or movement fragments. Movements appear random because of variability in timing, duration or location. Each movement may have a distinct start and end. However, movements may be strung together and thus may appear to flow randomly from one muscle group to another. Chorea can involve the trunk, neck, face, tongue, and extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002072","HPO_Synonym__c":"Choreic movements; Choreiform movements","HPO_Name__c":"Chorea","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"Progressive impairment of function of motor axons with muscle weakness, atrophy, and cramps. The deficits are length-dependent, meaning that muscles innervated by the longest nerves are affected first, so that for instance the arms are affected at a later age than the onset of deficits involving the lower leg.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0007002","HPO_Name__c":"Motor axonal neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"OMIM:300842","Feature__r":{"HPO_Description__c":"Frequently experiencing feelings of being down, miserable, and/or hopeless; struggling to recover from these moods; having a pessimistic outlook on the future; feeling a pervasive sense of shame; having a low self-worth; experiencing thoughts of suicide and engaging in suicidal behavior.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000716","HPO_Synonym__c":"Depression; Depressive episode; Depressivity","HPO_Name__c":"Depression","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology","Hematology"],"Specialist":["Genetics","Cardiology","Neurology","Psychiatry","Hematology","Epilepsy"],"Account":["Epilepsy","Cardiomyopathy"]},"synonyms":["blood group deletion syndrome"," mclds"," mcleod phenotype"," mcleod syndrome"," mcleod syndrome with or without chronic granulomatous disease"," mls"," neuroacanthocytosis, mcleod type"," x-linked mcleod syndrome"]}