{"Name":"Hypophosphatasia","DiseaseID__c":"GARD:0006734","id":6734,"encodedName":"hypophosphatasia","IsDeleted":false,"Disease_Name_Full__c":"Hypophosphatasia","Xref_IDs__c":"190859005; 360792001; C0020630; C26798; D007014; DOID:14213; MEDGEN:43799; MONDO:0018570; NBK1150; ORPHA:436","USA_Estimate__c":null,"No_of_Specialist_Tagsa__c":3,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":1,"No_of_HHS_records__c":1,"World_Estimate__c":null,"No_of_HRSA_records__c":0,"Evidence_Based_Score__c":3,"No_of_Disease_Descriptions__c":4,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0018570","Disease_Description__c":"A rare, genetic metabolic disorder characterized by reduced activity of unfractionated serum alkaline phosphatase (ALP) and various symptoms from life-threatening, severely impaired mineralization at birth to musculo-skeletal pain in adulthood.","GARD_Name__c":"Hypophosphatasia","GARD_Synonym__c":"alkaline phosphatase deficiency; deficiency of alkaline phosphatase; deficiency of alkaline phosphatase (disorder) [ambiguous]; hpp; phosphoethanol-aminuria; phosphoethanolaminuria; rathbun disease; rathburn disease","Curated_Disease_Description_Source__c":"GARD:0006734","Curated_Disease_Description__c":"Hypophosphatasia is an inherited disorder that affects the development of bones and teeth. This condition disrupts a process called mineralization, in which minerals such as calcium and phosphorus are deposited in developing bones and teeth. Mineralization is critical for the formation of bones that are strong and rigid and teeth that can withstand chewing and grinding. The signs and symptoms of hypophosphatasia vary widely and can appear anywhere from before birth to adulthood. The most severe forms of the disorder tend to occur before birth and in early infancy. Hypophosphatasia weakens and softens the bones, causing skeletal abnormalities similar to another childhood bone disorder called rickets. Affected infants are born with short limbs, an abnormally shaped chest, and soft skull bones. Additional complications in infancy include poor feeding and a failure to gain weight, respiratory problems, and high levels of calcium in the blood (hypercalcemia), which can lead to recurrent vomiting and kidney problems.  These complications are life-threatening in some cases. The forms of hypophosphatasia that appear in childhood or adulthood are typically less severe than those that appear in infancy. Early loss of primary (baby) teeth is one of the first signs of the condition in children. Affected children may have short stature with bowed legs or knock knees, enlarged wrist and ankle joints, and an abnormal skull shape. Adult forms of hypophosphatasia are characterized by a softening of the bones known as osteomalacia.  In adults, recurrent fractures in the foot and thigh bones can lead to chronic pain. Affected adults may lose their secondary (adult) teeth prematurely and are at increased risk for joint pain and inflammation. The mildest form of this condition, called odontohypophosphatasia, only affects the teeth. People with this disorder typically experience abnormal tooth development and premature tooth loss, but do not have the skeletal abnormalities seen in other forms of hypophosphatasia.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":null,"Age_at_Onset_Snippet_Text__c":"at any time in life","SourceID__c":"ORPHA:436","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Grouping","MONDO_ID__c":"MONDO:0018570","ORPHANET_ID__c":"ORPHA:436","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Hipofosfatasia","Spanish_Description_Source__c":"ORPHA:436","Spanish_Description__c":"Es un trastorno metabólico de origen genético, poco frecuente, caracterizado por la reducción de la actividad de la fosfatasa alcalina no fraccionada sérica (FA) y por síntomas que varían desde una grave afectación de la mineralización al nacimiento, potencialmente mortal hasta dolor musculoesquelético en la edad adulta.","Spanish_Disease_Name__c":"hipofosfatasia","Spanish_GARD_Synonym__c":"enfermedad de rathburn; fosfoetanolaminuria; hpp","Category_Linearization__c":"ORPHA:93419","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":"Hypophosphatasia is an inherited disorder that affects the development of bones and teeth. This condition disrupts a process called mineralization, in which minerals such as calcium and phosphorus are deposited in developing bones and teeth. Mineralization is critical for the formation of bones that are strong and rigid and teeth that can withstand chewing and grinding. The signs and symptoms of hypophosphatasia vary widely and can appear anywhere from before birth to adulthood. The most severe forms of the disorder tend to occur before birth and in early infancy. Hypophosphatasia weakens and softens the bones, causing skeletal abnormalities similar to another childhood bone disorder called rickets. Affected infants are born with short limbs, an abnormally shaped chest, and soft skull bones. Additional complications in infancy include poor feeding and a failure to gain weight, respiratory problems, and high levels of calcium in the blood (hypercalcemia), which can lead to recurrent vomiting and kidney problems.  These complications are life-threatening in some cases. The forms of hypophosphatasia that appear in childhood or adulthood are typically less severe than those that appear in infancy. Early loss of primary (baby) teeth is one of the first signs of the condition in children. Affected children may have short stature with bowed legs or knock knees, enlarged wrist and ankle joints, and an abnormal skull shape. Adult forms of hypophosphatasia are characterized by a softening of the bones known as osteomalacia.  In adults, recurrent fractures in the foot and thigh bones can lead to chronic pain. Affected adults may lose their secondary (adult) teeth prematurely and are at increased risk for joint pain and inflammation. The mildest form of this condition, called odontohypophosphatasia, only affects the teeth. People with this disorder typically experience abnormal tooth development and premature tooth loss, but do not have the skeletal abnormalities seen in other forms of hypophosphatasia.","Curated_Disease_Description_Source__c":"GARD:0006734","GARD_Synonym__c":"alkaline phosphatase deficiency; deficiency of alkaline phosphatase; deficiency of alkaline phosphatase (disorder) [ambiguous]; hpp; phosphoethanol-aminuria; phosphoethanolaminuria; rathbun disease; rathburn disease","Name":"Hypophosphatasia","estimateUsa":""}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Little People of America","Website__c":"https://www.lpaonline.org/"},{"Account_Name__c":"Metabolic Support UK","Website__c":"https://www.metabolicsupportuk.org"},{"Account_Name__c":"The MAGIC Foundation","Website__c":"https://www.magicfoundation.org/"},{"Account_Name__c":"Soft Bones Inc.","Website__c":"https://www.softbones.org"},{"Account_Name__c":"Soft Bones Canada","Website__c":"http://softbonescanada.ca/"},{"Account_Name__c":"The Avalon Foundation","Website__c":"https://kc4k.us/"}],"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":"Congenital Abnormality","Tag_Category__c":"Disease Category","category_description":"Birth defects are structural changes present at birth that can affect almost any part of the body, including how the body looks, works, or both.","curated_tag_name":"Birth defects"},{"Tag_Name__c":"Orthopedics","Tag_Category__c":"Specialist"},{"Tag_Name__c":"Pediatrics","Tag_Category__c":"Specialist"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"All ages","Provided_By__c":"ORPHA:436"}],"Diagnosis__c":[{"Type__c":"GTR","Curie__c":"MEDGEN:C0020630"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1150","Source__c":"Gene Review","Xref__c":"NBK1150"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=43799","Source__c":"C0020630","Xref__c":"MEDGEN:43799"},{"URL__c":"https://www.ncbi.nlm.nih.gov/mesh/C007014","Source__c":"C0020630; MONDO:0018570","Xref__c":"D007014"},{"URL__c":"https://evsexplore.semantics.cancer.gov/evsexplore/concept/ncit/C26798","Source__c":"C0020630; MONDO:0018570","Xref__c":"C26798"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A14213","Source__c":"MONDO:0018570","Xref__c":"DOID:14213"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C0020630","Source__c":"C0020630","Xref__c":"C0020630"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=360792001","Source__c":"C0020630; MONDO:0018570","Xref__c":"360792001"},{"URL__c":"https://www.orpha.net/en/disease/detail/436","Source__c":"C0020630; MONDO:0018570; ORPHA:436","Xref__c":"ORPHA:436"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=190859005","Source__c":"C0020630","Xref__c":"190859005"},{"URL__c":"https://medlineplus.gov/genetics/condition/hypophosphatasia","Source__c":"GARD:0006734","Xref__c":"https://medlineplus.gov/genetics/condition/hypophosphatasia"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0018570","Source__c":"GARD:0006734","Xref__c":"MONDO:0018570"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"ALPL","GHR_URL__c":"https://medlineplus.gov/genetics/gene/alpl","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal recessive","Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A bending or abnormal curvature of a long bone.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0006487","HPO_Synonym__c":"Bowed long bones; Bowing of long bones; Bowing of the long bones; Camptomelia; Diaphyseal bowing; Diaphyseal bowing of long bones","HPO_Name__c":"Bowing of the long bones","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An anomaly of the rib.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000772","HPO_Synonym__c":"Abnormality of the ribs; Rib abnormalities; Rib anomalies","HPO_Name__c":"Abnormal rib morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally increased calcium concentration in the blood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003072","HPO_Synonym__c":"High blood calcium levels; Hypercalcaemia; Increased calcium in blood","HPO_Name__c":"Hypercalcemia","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Craniosynostosis refers to the premature closure of the cranial sutures. Primary craniosynostosis refers to the closure of one or more sutures due to abnormalities in skull development, and secondary craniosynostosis results from failure of brain growth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001363","HPO_Synonym__c":"Cranial suture synostosis; Craniosyostosis; Early fusion of cranial sutures; Premature closure of cranial sutures; Premature suture closure","HPO_Name__c":"Craniosynostosis","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Skin dimples are cutaneous indentations that are the result of tethering of the skin to underlying structures (bone) causing an indentation.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0010781","HPO_Synonym__c":"Skin dimples","HPO_Name__c":"Skin dimple","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Hypotonia is an abnormally low muscle tone (the amount of tension or resistance to movement in a muscle). Even when relaxed, muscles have a continuous and passive partial contraction which provides some resistance to passive stretching. Hypotonia thus manifests as diminished resistance to passive stretching. Hypotonia is not the same as muscle weakness, although the two conditions can co-exist.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001252","HPO_Synonym__c":"Low muscle tone; Low or weak muscle tone; Muscle hypotonia; Muscular hypotonia","HPO_Name__c":"Hypotonia","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001531","HPO_Synonym__c":"Failure to thrive in first year of life; Faltering weight in infancy; Weight faltering in infancy","HPO_Name__c":"Failure to thrive in infancy","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"A height below that which is expected according to age and sex norms. Although there is no universally accepted definition of short stature, many refer to \\\"short stature\\\" as height more than 2 standard deviations below the mean for age and sex (or below the 3rd percentile for age and sex dependent norms).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0004322","HPO_Synonym__c":"Decreased body height; Height less than 3rd percentile; Short stature; Small stature; Stature below 3rd percentile","HPO_Name__c":"Short stature","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","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:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Any abnormality of the teeth.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000164","HPO_Synonym__c":"Abnormal dentition; Abnormal teeth; Dental abnormalities; Dental abnormality; Dental anomalies","HPO_Name__c":"Abnormality of the dentition","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"An abnormality of one or more metaphysis, i.e., of the somewhat wider portion of a long bone that is adjacent to the epiphyseal growth plate and grows during childhood.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000944","HPO_Synonym__c":"Abnormality of the wide portion of a long bone","HPO_Name__c":"Abnormal metaphysis morphology","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Reduced width of the chest from side to side, associated with a reduced distance from the sternal notch to the tip of the shoulder.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000774","HPO_Synonym__c":"Low chest circumference; Narrow chest; Narrow shoulders; Narrow thorax; Reduced anterior-posterior chest diameter","HPO_Name__c":"Narrow chest","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002097","HPO_Synonym__c":"Pulmonary emphysema","HPO_Name__c":"Emphysema","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002093","HPO_Synonym__c":"Respiratory impairment","HPO_Name__c":"Respiratory insufficiency","Feature_System__c":"Respiratory system","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001024","HPO_Name__c":"Skin dimple over apex of long bone angulation","Feature_System__c":"Skin System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"In newborns, the two frontal bones, two parietal bones, and one occipital bone are joined by fibrous sutures, which form a small posterior fontanelle, and a larger, diamond-shaped anterior fontanelle. These regions allow for the skull to pass the birth canal and for later growth. The fontanelles gradually ossify, whereby the posterior fontanelle usually closes by eight weeks and the anterior fontanelle by the 9th to 16th month of age. Large fontanelles are diagnosed if the fontanelles are larger than age-dependent norms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0000239","HPO_Synonym__c":"Enlarged fontanelles; Large fontanel; Large fontanelle; Large fontanels; Persistent wide fontanel; Wide fontanelles","HPO_Name__c":"Large fontanelles","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Very frequent (80-99%)","Feature__r":{"HPO_Description__c":"Impaired feeding performance of an infant as manifested by difficulties such as weak and ineffective sucking, brief bursts of sucking, and falling asleep during sucking. There may be difficulties with chewing or maintaining attention.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008872","HPO_Name__c":"Feeding difficulties in infancy","Feature_System__c":"Digestive System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"A reduction in erythrocytes volume or hemoglobin concentration.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0001903","HPO_Synonym__c":"Anaemia; Low number of red blood cells or hemoglobin","HPO_Name__c":"Anemia","Feature_System__c":"Blood and Blood-Forming Tissue","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:436","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:436","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The repeated occurrence of bone fractures (implying an abnormally increased tendency for fracture).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0002757","HPO_Synonym__c":"Frequent fractures; Increased fracture rate; Increased fractures; Multiple fractures; Multiple spontaneous fractures; Recurrent fractures; Varying degree of multiple fractures","HPO_Name__c":"Recurrent fractures","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Congenital Abnormality"],"Specialist":["Genetics","Orthopedics","Pediatrics"]},"synonyms":["alkaline phosphatase deficiency"," deficiency of alkaline phosphatase"," deficiency of alkaline phosphatase (disorder) [ambiguous]"," hpp"," phosphoethanol-aminuria"," phosphoethanolaminuria"," rathbun disease"," rathburn disease"]}