{"Name":"Galactosylceramide beta-galactosidase deficiency","DiseaseID__c":"GARD:0006844","id":6844,"encodedName":"galactosylceramide-beta-galactosidase-deficiency","IsDeleted":false,"Disease_Name_Full__c":"Galactosylceramide beta-galactosidase deficiency","Xref_IDs__c":"189979005; 192782005; C0023521; C61254; D007965; DOID:10587; E75.23; MEDGEN:44131; MONDO:0009499; OMIM:245200; ORPHA:487","USA_Estimate__c":"5,000","No_of_Specialist_Tagsa__c":7,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"8,000 to 80,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":5,"Disease_Characteristics_Score__c":8,"No_of_Age_at_Onset__c":5,"Description_Source__c":"MONDO:0009499","Disease_Description__c":"A rare lysosomal disorder that affects the white matter of the central and peripheral nervous systems characterized by neurodegeneration with severity depending on the age of onset (infantile, late-infantile, juvenile, adolescent and adulthood).","GARD_Name__c":"Galactosylceramide beta-galactosidase deficiency","GARD_Synonym__c":"beta galactocerebrosidase deficiency; diffuse globoid body sclerosis; diffuse globoid cell cerebral sclerosis; galactocerebrosidase deficiency; galactocerebroside beta-galactosidase deficiency; galactosylceramidase deficiency; galactosylceramide lipidosis; galc deficiency; galc enzyme deficiency; gcl - globoid cell leucodystrophy; globoid cell leucodystrophy; globoid cell leukodystrophy; globoid cell leukoencephalopathy; krabbe disease; krabbe leucodystrophy; krabbe's disease; krabbe's leukodystrophy; leukodystrophy, globoid cell; leukodystrophy, krabbe's","Curated_Disease_Description_Source__c":"GARD:0006844","Curated_Disease_Description__c":"Krabbe disease (also called globoid cell leukodystrophy) is a severe neurological condition. It is part of a group of disorders known as leukodystrophies, which result from the loss of myelin (demyelination) in the nervous system. Myelin is the protective covering around nerve cells that ensures the rapid transmission of nerve signals. Krabbe disease is also characterized by abnormal cells in the brain called globoid cells, which are large cells that usually have more than one nucleus. The most common form of Krabbe disease, called the infantile form, usually begins before the age of 1. Initial signs and symptoms typically include irritability, muscle weakness, feeding difficulties, episodes of fever without any sign of infection, stiff posture, and delayed mental and physical development. As the disease progresses, muscles continue to weaken, affecting the infants ability to move, chew, swallow, and breathe. Affected infants also experience vision loss and seizures. Because of the severity of the condition, individuals with the infantile form of Krabbe disease rarely survive beyond the age of 2. Less commonly, Krabbe disease begins in childhood, adolescence, or adulthood (late-onset forms). Vision problems and walking difficulties are the most common initial symptoms in these forms of the disorder, however, signs and symptoms vary considerably among affected individuals. Individuals with late-onset Krabbe disease may survive many years after the condition begins.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"5,000","Age_at_Onset_Snippet_Text__c":"at a variety of ages","SourceID__c":"ORPHA:487","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Grouping","MONDO_ID__c":"MONDO:0009499","ORPHANET_ID__c":"ORPHA:487","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Enfermedad de krabbe","Spanish_Description_Source__c":"ORPHA:487","Spanish_Description__c":"Es un trastorno lisosomal poco frecuente que afecta a la sustancia blanca del sistema nervioso central y periférico y que se caracteriza por neurodegeneración cuya gravedad depende de la edad de aparición (lactancia, lactancia tardía, infantil, adolescencia y edad adulta).","Spanish_Disease_Name__c":"enfermedad de krabbe","Spanish_GARD_Synonym__c":"deficiencia de galactocerebrosidasa; deficiencia de galactosilceramidasa; deficiencia de galc; leucodistrofia de células caliciformes","Category_Linearization__c":"ORPHA:68367","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":"Krabbe disease (also called globoid cell leukodystrophy) is a severe neurological condition. It is part of a group of disorders known as leukodystrophies, which result from the loss of myelin (demyelination) in the nervous system. Myelin is the protective covering around nerve cells that ensures the rapid transmission of nerve signals. Krabbe disease is also characterized by abnormal cells in the brain called globoid cells, which are large cells that usually have more than one nucleus. The most common form of Krabbe disease, called the infantile form, usually begins before the age of 1. Initial signs and symptoms typically include irritability, muscle weakness, feeding difficulties, episodes of fever without any sign of infection, stiff posture, and delayed mental and physical development. As the disease progresses, muscles continue to weaken, affecting the infants ability to move, chew, swallow, and breathe. Affected infants also experience vision loss and seizures. Because of the severity of the condition, individuals with the infantile form of Krabbe disease rarely survive beyond the age of 2. Less commonly, Krabbe disease begins in childhood, adolescence, or adulthood (late-onset forms). Vision problems and walking difficulties are the most common initial symptoms in these forms of the disorder, however, signs and symptoms vary considerably among affected individuals. Individuals with late-onset Krabbe disease may survive many years after the condition begins.","Curated_Disease_Description_Source__c":"GARD:0006844","GARD_Synonym__c":"beta galactocerebrosidase deficiency; diffuse globoid body sclerosis; diffuse globoid cell cerebral sclerosis; galactocerebrosidase deficiency; galactocerebroside beta-galactosidase deficiency; galactosylceramidase deficiency; galactosylceramide lipidosis; galc deficiency; galc enzyme deficiency; gcl - globoid cell leucodystrophy; globoid cell leucodystrophy; globoid cell leukodystrophy; globoid cell leukoencephalopathy; krabbe disease; krabbe leucodystrophy; krabbe's disease; krabbe's leukodystrophy; leukodystrophy, globoid cell; leukodystrophy, krabbe's","Name":"Galactosylceramide beta-galactosidase deficiency","Curated_USA_Estimate__c":"5,000","estimateUsa":"5,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Krabbe Connect","Website__c":"https://krabbeconnect.org/"},{"Account_Name__c":"Childhood Dementia Initiative","Website__c":"https://www.childhooddementia.org/"},{"Account_Name__c":"European Leukodystrophies Association","Website__c":"https://ela-asso.com/en/"},{"Account_Name__c":"Leukodystrophy Australia","Website__c":"https://www.leuko.org.au/"},{"Account_Name__c":"Leukodystrophy Resource & Research Organisation","Website__c":"https://www.facebook.com/LeukodystrophyRRO/"},{"Account_Name__c":"Rosenau Family Research Foundation","Website__c":"https://rosenaufoundation.org/"},{"Account_Name__c":"Alianza Iberoamericana de Enfermedades Raras o Poco Frecuentes","Website__c":"https://aliber.org/web/"},{"Account_Name__c":"Federación Mexicana de Enfermedades Raras (FEMEXER)","Website__c":"http://www.femexer.org/"},{"Account_Name__c":"Federación Española de Enfermedades Raras","Website__c":"https://enfermedades-raras.org/"},{"Account_Name__c":"Federación Colombiana de Enfermedades Raras","Website__c":"http://www.fecoer.org"},{"Account_Name__c":"Federación Argentina de Enfermedades Poco Frecuentes","Website__c":"https://fadepof.org.ar/"},{"Account_Name__c":"Asociación Todos Unidos Enfermedades Raras Uruguay","Website__c":"https://atueru.org.uy/"},{"Account_Name__c":"Fundación Lautaro te Necesita","Website__c":"https://fundacionlautarotenecesita.org/"},{"Account_Name__c":"Metabolic Support UK","Website__c":"https://www.metabolicsupportuk.org"},{"Account_Name__c":"United Leukodystrophy Foundation","Website__c":"https://ulf.org/"},{"Account_Name__c":"Hunter's Hope Foundation","Website__c":"https://www.huntershope.org/"},{"Account_Name__c":"Alex The Leukodystrophy Charity","Website__c":"https://www.alextlc.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":"Inborn Errors of Metabolism","Tag_Category__c":"Cause;Disease Category","category_description":"Inherited metabolic diseases, or inborn errors of metabolism, are a group of genetic diseases that affect the ability of the body's cells to convert food into energy.","curated_tag_name":"Inherited metabolic diseases"},{"Tag_Name__c":"Leukodystrophy","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Leukodystrophies are a group of genetic neurological diseases that affect the white matter of the brain and spinal cord.","curated_tag_name":"Leukodystrophies"},{"Tag_Name__c":"Lysosomal","Tag_Category__c":"Account;Cause;Disease Category","category_description":"Lysosomal storage diseases are a group of genetic metabolic diseases that affect the ability of the body's cells to break down substances and remove toxins.","curated_tag_name":"Lysosomal storage diseases"},{"Tag_Name__c":"Epilepsy","Tag_Category__c":"Account;Specialist","curated_tag_name":"Epilepsy"},{"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:487"},{"Age_At_Onset__c":"Adolescent","Provided_By__c":"ORPHA:487"},{"Age_At_Onset__c":"Infancy","Provided_By__c":"ORPHA:487"},{"Age_At_Onset__c":"Neonatal","Provided_By__c":"ORPHA:487"},{"Age_At_Onset__c":"Adult","Provided_By__c":"ORPHA:487"}],"Diagnosis__c":[{"Type__c":"NEWBORN","Category__c":"Other","Curie__c":"http://newbornscreeningcodes.nlm.nih.gov/nb/sc/condition/GALC"},{"Type__c":"GTR","Curie__c":"MEDGEN:C0023521"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1238","Source__c":"Gene Review","Xref__c":"NBK1238"},{"URL__c":"http://purl.bioontology.org/ontology/ICD10CM/E75.23","Source__c":"MONDO:0009499","Xref__c":"E75.23"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0023521","Source__c":"C0023521","Xref__c":"C0023521"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A10587","Source__c":"MONDO:0009499","Xref__c":"DOID:10587"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C61254","Source__c":"C0023521; MONDO:0009499","Xref__c":"C61254"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=192782005","Source__c":"C0023521; MONDO:0009499","Xref__c":"192782005"},{"URL__c":"https://www.orpha.net/en/disease/detail/487","Source__c":"C0023521; MONDO:0009499; ORPHA:487","Xref__c":"ORPHA:487"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=189979005","Source__c":"MONDO:0009499","Xref__c":"189979005"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=44131","Source__c":"C0023521","Xref__c":"MEDGEN:44131"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C007965","Source__c":"C0023521; MONDO:0009499","Xref__c":"D007965"},{"URL__c":"https://www.omim.org/entry/245200","Source__c":"C0023521; MONDO:0009499; ORPHA:487","Xref__c":"OMIM:245200"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0009499","Source__c":"GARD:0006844","Xref__c":"MONDO:0009499"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"GALC","GHR_URL__c":"https://medlineplus.gov/genetics/gene/galc","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormal structure of the first digit of the hand.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001172","HPO_Synonym__c":"Abnormality of the thumb; Abnormality of the thumbs; Thumb deformity","HPO_Name__c":"Abnormal thumb morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Increased sensitivity to stimulation, excluding the special senses, which may refer to various modes of cutaneous sensibility including touch and thermal sensation without pain, as well as to pain.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100963","HPO_Synonym__c":"Hyperaesthesia","HPO_Name__c":"Hyperesthesia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Forceful ejection of the contents of the stomach through the mouth by means of a series of involuntary spasmic contractions.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002013","HPO_Synonym__c":"Emesis; Throwing up; Vomiting","HPO_Name__c":"Vomiting","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Peripheral neuropathy affecting the sensory nerves.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000763","HPO_Synonym__c":"Damage to nerves that sense feeling; Peripheral sensory neuropathy","HPO_Name__c":"Sensory neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","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":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A type of rigidity that is manifested by an exaggerated extensor posture of all extremities.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0025013","HPO_Synonym__c":"Decerebrate posturing","HPO_Name__c":"Decerebrate rigidity","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A generalized myoclonic seizure is a type of generalized motor seizure characterized by bilateral, sudden, brief (<100 ms) involuntary single or multiple contraction of muscles or muscle groups of variable topography (axial, proximal limb, distal). Myoclonus is less regularly repetitive and less sustained than is clonus.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002123","HPO_Synonym__c":"Generalised epileptic myoclonus; Generalised myoclonic seizure; Generalized epileptic myoclonus; Generalized myoclonic seizures; Myoclonus seizures","HPO_Name__c":"Generalized myoclonic seizure","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A multidimensional but common male sexual dysfunction that involves an alteration in any of the components of the erectile response, including organic, relational and psychological.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0100639","HPO_Synonym__c":"Abnormal erection; Erectile abnormalities","HPO_Name__c":"Erectile dysfunction","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An extreme elevation of core body temperature above normal defined as a rectal temperature of 41.1 degrees Celsius (106 degrees Fahrenheit).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0033031","HPO_Name__c":"Hyperpyrexia","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Loss of the ability to control the urinary bladder leading to involuntary urination.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000020","HPO_Synonym__c":"Bladder incontinence; Loss of bladder control","HPO_Name__c":"Urinary incontinence","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Lack of physical coordination resulting in an abnormal tendency to drop items or bump into objects.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002312","HPO_Synonym__c":"Clumsiness","HPO_Name__c":"Clumsiness","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","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:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Paralysis of all four limbs, and trunk of the body below the level of an associated injury to the spinal cord. The etiology of quadriplegia is similar to that of paraplegia except that the lesion is in the cervical spinal cord rather than in the thoracic or lumbar segments of the spinal cord.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002445","HPO_Synonym__c":"Paralysis of all four limbs; Quadriplegia","HPO_Name__c":"Tetraplegia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Increased concentration of protein in the cerebrospinal fluid.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002922","HPO_Synonym__c":"Cerebrospinal fluid protein increased; Cerebrospinal fluid with increased protein; Elevated cerebrospinal fluid protein; Elevated csf protein; Hyperproteinorrhachia; Increased CSF protein; Increased protein in csf; Spinal fluid protein elevated","HPO_Name__c":"Increased CSF protein concentration","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Trilobar skull configuration when viewed from the front or behind.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002676","HPO_Synonym__c":"Kleeblattschaedel","HPO_Name__c":"Cloverleaf skull","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Absence or underdevelopment of the abdominal musculature.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010318","HPO_Synonym__c":"Absent/small abdominal wall muscles; Absent/underdeveloped abdominal wall muscles","HPO_Name__c":"Aplasia/Hypoplasia of the abdominal wall musculature","Feature_System__c":"Musculoskeletal System; Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","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:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A severe form of respiratory insufficiency characterized by inadequate gas exchange such that the levels of oxygen or carbon dioxide cannot be maintained within normal limits.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002878","HPO_Synonym__c":"Respiratory failure","HPO_Name__c":"Respiratory failure","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Peripheral neuropathy is a general term for any disorder of the peripheral nervous system. The main clinical features used to classify peripheral neuropathy are distribution, type (mainly demyelinating versus mainly axonal), duration, and course.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009830","HPO_Synonym__c":"Peripheral nerve damage; Peripheral neuritis","HPO_Name__c":"Peripheral neuropathy","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001939","HPO_Synonym__c":"Laboratory abnormality; Metabolism abnormality","HPO_Name__c":"Abnormality of metabolism/homeostasis","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","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:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Loss of strength in the arm, leg, and sometimes face on one side of the body. Hemiplegia refers to a severe or complete loss of strength, whereas hemiparesis refers to a relatively mild loss of strength.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004374","HPO_Synonym__c":"Paralysis or weakness of one side of body","HPO_Name__c":"Hemiplegia/hemiparesis","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduced velocity and acceleration in the pupillary light response.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0030211","HPO_Synonym__c":"Sluggish pupillary reaction; Sluggish pupillary reactions to light","HPO_Name__c":"Slow pupillary light response","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","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:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A type of hearing impairment in one or both ears related to an abnormal functionality of the cochlear nerve.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000407","HPO_Synonym__c":"Hearing loss, sensorineural; Sensorineural deafness; Sensorineural hearing loss","HPO_Name__c":"Sensorineural hearing impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Ataxia refers to impaired coordination of voluntary muscle movement. Cerebellar ataxia refers to ataxia due to dysfunction of the cerebellum. This causes a variety of elementary neurological deficits including asynergy (lack of coordination between muscles, limbs and joints), dysmetria (lack of ability to judge distances that can lead to under- or overshoot in grasping movements), and dysdiadochokinesia (inability to perform rapid movements requiring antagonizing muscle groups to be switched on and off repeatedly).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001251","HPO_Synonym__c":"Cerebellar ataxia","HPO_Name__c":"Ataxia","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","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:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An increased susceptibility to respiratory infections as manifested by a history of recurrent respiratory infections.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002205","HPO_Synonym__c":"Frequent respiratory infections; Multiple respiratory infections; Recurrent respiratory infections; respiratory infections, recurrent; Susceptibility to respiratory infections","HPO_Name__c":"Recurrent respiratory infections","Feature_System__c":"Respiratory system; Immune System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"An abnormal hand posture in which the hands are clenched to fists. All digits held completely flexed at the metacarpophalangeal and interphalangeal joints. In prenatal sonography of the fetal clenched hand, the index finger overlaps a clenched fist formed by the other digits. The proximal interphalangeal articulation of the index finger is flexed and ulnarly deviated, and the thumb is adducted.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001188","HPO_Synonym__c":"Clenched hand; Clenched hands; Fisted hand; Fisting; Hand clenching; Hands fisted; Hands tightly fisted; Thumb clasp","HPO_Name__c":"Hand clenching","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","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:487","HPO_Frequency__c":"Occasional (5-29%)","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":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality of the conduction of electrical impulses by peripheral (motor or sensory) nerves. This finding is elicited by a nerve conduction study (NCS).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003134","HPO_Synonym__c":"Sensory and motor nerve conduction abnormalities","HPO_Name__c":"Abnormality of peripheral nerve conduction","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Procedure_NCV"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Impaired ability to eat related to problems gathering food and getting ready to suck, chew, or swallow it.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0011968","HPO_Synonym__c":"Decreased oral intake; Feeding difficulties; Feeding problems; Poor feeding","HPO_Name__c":"Feeding difficulties","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Concentration or activity of galactocerebrosidase (EC 3.2.1.46) below the lower limit of normal. This enzyme can be measured in multiple tissues including leukocytes and cultured fibroblasts.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0034322","HPO_Name__c":"Reduced tissue galactocerebrosidase activity","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Reduction of total body weight.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001824","HPO_Synonym__c":"Loss of weight","HPO_Name__c":"Weight loss","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Loss of developmental skills, as manifested by loss of developmental milestones.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002376","HPO_Synonym__c":"Loss of acquired milestones; Loss of developmental milestones; Loss of milestones; Mental deterioration in childhood; Neurodevelopmental regression; Psychomotor regression; Psychomotor regression beginning in infancy; Psychomotor regression in infants; Psychomotor regression, progressive","HPO_Name__c":"Developmental regression","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Failure to thrive (FTT) refers to a child whose physical growth is substantially below the norm.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001508","HPO_Synonym__c":"Faltering weight; FTT; Postnatal failure to thrive; Weight faltering","HPO_Name__c":"Failure to thrive","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Very brief, involuntary random muscular contractions occurring at rest, in response to sensory stimuli, or accompanying voluntary movements.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001336","HPO_Synonym__c":"Myoclonic jerks","HPO_Name__c":"Myoclonus","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Blindness is the condition of lacking visual perception defined as a profound reduction in visual perception. On the 6m visual acuity scale, blindness is defined as less than 3/60. On the 20ft visual acuity scale, blindness is defined as less than 20/400. On the decimal visual acuity scale, blindness is defined as less than 0.05. Blindness is typically characterized by a visual field of no greater than 10 degrees in radius around central fixation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000618","HPO_Synonym__c":"Blindness; Total vision loss","HPO_Name__c":"Blindness","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A decreased magnitude of the sensory perception of sound.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000365","HPO_Synonym__c":"Deafness; Hearing defect; Hearing impairment; Hypacusis","HPO_Name__c":"Hearing impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Visual impairment (or vision impairment) is vision loss (of a person) to such a degree as to qualify as an additional support need through a significant limitation of visual capability resulting from either disease, trauma, or congenital or degenerative conditions that cannot be corrected by conventional means, such as refractive correction, medication, or surgery.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000505","HPO_Synonym__c":"Impaired vision; Loss of eyesight; Poor vision; Visual impairment","HPO_Name__c":"Visual impairment","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Body temperature elevated above the normal range.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001945","HPO_Synonym__c":"Fever; Hyperthermia; Pyrexia","HPO_Name__c":"Fever","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Opisthotonus is defined as a dramatic abnormal posture due to spastic contraction of the extensor muscles of the neck, trunk, and lower extremities that produces a severe backward arching from neck to heel. In most cases, the trunk is elevated off the ground by a few inches. It is usually sudden in onset and can be sustained or repetitive. It can be considered a variant of decerebrate posturing involving a hyperextension of the neck, back, and limbs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002179","HPO_Synonym__c":"Arc de cercle; Opisthotonos","HPO_Name__c":"Opisthotonus","Feature_System__c":"Nervous System; Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Occasional (5-29%)","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:487","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An emotional state characterized by negative feelings of heightened frustration, annoyance, or feeling upset, often triggered by internal factors (e.g., fatigue, hunger, unfulfilled desires) or external factors (e.g., social or environmental challenges). Irritability may be unpredictable, and is accompanied by a lowered threshold for emotional reactivity and observable features (speech, facial expressions, or psychomotor activity).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000737","HPO_Synonym__c":"Cranky; Easily annoyed; Easily bothered; Easily upset; Grumpy; Hot-temper; Irritability; Irritable; Irritable mood; On edge; Quick-temper; Short fuse; Short tempered","HPO_Name__c":"Irritability","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Atypical behavior is an abnormality in a person's actions that can be controlled or modulated by the will of the individual. While abnormal behaviors can be difficult to control, they are distinct from other abnormal actions that cannot be affected by the individual's will.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000708","HPO_Synonym__c":"Behavioral abnormality; Behavioral changes; Behavioral disorders; Behavioral disturbances; Behavioral problems; Behavioral symptoms; Behavioral/psychiatric abnormalities; Behavioural symptoms; Behavioural/Psychiatric abnormality; Psychiatric disorders; Psychiatric disturbances","HPO_Name__c":"Atypical behavior","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:487","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Abnormal results of investigations using electromyography (EMG).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003457","HPO_Synonym__c":"Abnormal electromyography finding; Abnormal EMG; Electromyogram abnormal; EMG abnormalities","HPO_Name__c":"EMG abnormality","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Procedure_EMG"}},{"Provided_By__c":"ORPHA:487","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:487","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Difficulty to maintain correct position of the head while standing or sitting. Infant head lag is observed when the head seems to flop around or lags posteriorly behind the trunk. Several articles have maintained that head lag should be absent by age 3 to 4 months.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002421","HPO_Synonym__c":"Delay in head control; Delay in head righting; Infant head lag; Poor head control","HPO_Name__c":"Poor head control","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics","Inborn Errors of Metabolism","Leukodystrophy","Lysosomal"],"Disease Category":["Genetics","Neurology","Inborn Errors of Metabolism","Leukodystrophy","Lysosomal"],"Specialist":["Genetics","Neurology","Ophthalmology","Epilepsy","Neuro-Ophthalmology","Neuromuscular medicine","Pediatrics"],"Account":["Leukodystrophy","Lysosomal","Epilepsy"]},"synonyms":["beta galactocerebrosidase deficiency"," diffuse globoid body sclerosis"," diffuse globoid cell cerebral sclerosis"," galactocerebrosidase deficiency"," galactocerebroside beta-galactosidase deficiency"," galactosylceramidase deficiency"," galactosylceramide lipidosis"," galc deficiency"," galc enzyme deficiency"," gcl - globoid cell leucodystrophy"," globoid cell leucodystrophy"," globoid cell leukodystrophy"," globoid cell leukoencephalopathy"," krabbe disease"," krabbe leucodystrophy"," krabbe's disease"," krabbe's leukodystrophy"," leukodystrophy, globoid cell"," leukodystrophy, krabbe's"],"spanishId":12808,"spanishName":"enfermedad-de-krabbe"}