{"Name":"Tibial muscular dystrophy","DiseaseID__c":"GARD:0013154","id":13154,"encodedName":"tibial-muscular-dystrophy","IsDeleted":false,"Disease_Name_Full__c":"Tibial muscular dystrophy","Xref_IDs__c":"698846009; C1838244; DOID:0111078; MEDGEN:333047; MONDO:0010870; OMIM:600334; ORPHA:609","USA_Estimate__c":"200,000","No_of_Specialist_Tagsa__c":3,"No_of_ClinGen_records__c":0,"No_of_GeneReviews__c":0,"No_of_HHS_records__c":0,"World_Estimate__c":"800,000 to 5,000,000","No_of_HRSA_records__c":0,"Evidence_Based_Score__c":0,"No_of_Disease_Descriptions__c":5,"Disease_Characteristics_Score__c":7,"No_of_Age_at_Onset__c":1,"Description_Source__c":"MONDO:0010870","Disease_Description__c":"Tibial muscular dystrophy (TMD) is a distal myopathy characterized by weakness of the muscles of the anterior compartment of lower limbs, appearing in the fourth to seventh decade of life.","GARD_Name__c":"Tibial muscular dystrophy","GARD_Synonym__c":"distal myopathy, udd type; distal titinopathy; finnish tibial muscular dystrophy; tardive tibial muscular dystrophy; tibial muscular dystrophy, tardive; tmd; udd distal myopathy; udd myopathy; udd type distal myopathy","Curated_Disease_Description_Source__c":"PlainLanguagePilotV2-Jan24","Curated_Disease_Description__c":"Tibial muscular dystrophy is a condition that affects the muscles at the front of the lower leg. The signs and symptoms of this condition typically appear after age 35. The first sign is usually weakness and wasting (atrophy) of a muscle in the lower leg called the tibialis anterior. This muscle helps control up-and-down movement of the foot. Weakness in the tibialis anterior muscle makes it difficult or impossible to walk on the heels, but it usually does not interfere significantly with regular walking. Muscle weakness worsens very slowly in people with tibial muscular dystrophy.  Ten to 20 years after the onset of symptoms, weakness may develop in muscles that help extend the toes (long-toe extensors). Weakness in these muscles makes it difficult to lift the toes while walking, a condition known as foot drop. Later in life, about one third of people with tibial muscular dystrophy experience mild to moderate difficulty with walking because of weakness in other leg muscles. However, most affected individuals remain able to walk throughout their lives. A small percentage of people with tibial muscular dystrophy have a somewhat different pattern of signs and symptoms than those described above. Starting in childhood, these individuals may have generalized muscle weakness, weakness and atrophy of the thigh muscles (quadriceps) or other muscles in the legs, and weakness affecting muscles in the arms.","Curated_USA_Estimate_Source__c":null,"Curated_USA_Estimate__c":"200,000","Age_at_Onset_Snippet_Text__c":"as an Adult","SourceID__c":"ORPHA:609","Deprecated__c":"No","Disease_Concept_Type__c":"Rare Disease Entity","MONDO_ID__c":"MONDO:0010870","ORPHANET_ID__c":"ORPHA:609","Replaced_By_ID__c":null,"Display_Spanish_Disease_Name__c":"Distrofia muscular tibial","Spanish_Description_Source__c":"ORPHA:609","Spanish_Description__c":"La distrofia muscular tibial (DMT) es una miopatía distal caracterizada por debilidad de los músculos de la cara anterior de las extremidades inferiores, que aparece entre la cuarta y séptima década de vida.","Spanish_Disease_Name__c":"distrofia muscular tibial","Spanish_GARD_Synonym__c":"distrofia muscular tibial finlandesa; miopatía de udd; miopatía distal tipo udd; titinopatía distal; tmd","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":"Tibial muscular dystrophy is a condition that affects the muscles at the front of the lower leg. The signs and symptoms of this condition typically appear after age 35. The first sign is usually weakness and wasting (atrophy) of a muscle in the lower leg called the tibialis anterior. This muscle helps control up-and-down movement of the foot. Weakness in the tibialis anterior muscle makes it difficult or impossible to walk on the heels, but it usually does not interfere significantly with regular walking. Muscle weakness worsens very slowly in people with tibial muscular dystrophy.  Ten to 20 years after the onset of symptoms, weakness may develop in muscles that help extend the toes (long-toe extensors). Weakness in these muscles makes it difficult to lift the toes while walking, a condition known as foot drop. Later in life, about one third of people with tibial muscular dystrophy experience mild to moderate difficulty with walking because of weakness in other leg muscles. However, most affected individuals remain able to walk throughout their lives. A small percentage of people with tibial muscular dystrophy have a somewhat different pattern of signs and symptoms than those described above. Starting in childhood, these individuals may have generalized muscle weakness, weakness and atrophy of the thigh muscles (quadriceps) or other muscles in the legs, and weakness affecting muscles in the arms.","Curated_Disease_Description_Source__c":"PlainLanguagePilotV2-Jan24","GARD_Synonym__c":"distal myopathy, udd type; distal titinopathy; finnish tibial muscular dystrophy; tardive tibial muscular dystrophy; tibial muscular dystrophy, tardive; tmd; udd distal myopathy; udd myopathy; udd type distal myopathy","Name":"Tibial muscular dystrophy","Curated_USA_Estimate__c":"200,000","estimateUsa":"200,000"}],"Organization_Supported_Diseases__c":[{"Account_Name__c":"Team Titin","Website__c":"https://titinmyopathy.com/"},{"Account_Name__c":"Muscular Dystrophy Association","Website__c":"https://www.mda.org"},{"Account_Name__c":"Muscular Dystrophy Canada","Website__c":"https://muscle.ca/"}],"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":"Muscular Dystrophy","Tag_Category__c":"Account;Disease Category","category_description":"Muscular dystrophy refers to a group of inherited disorders that cause muscles to gradually weaken and break down.","curated_tag_name":"Muscular dystrophy"},{"Tag_Name__c":"Neuromuscular medicine","Tag_Category__c":"Specialist","curated_tag_name":"Neuromuscular medicine"}],"Age_At_Onset__c":[{"Age_At_Onset__c":"Adult","Provided_By__c":"ORPHA:609"}],"External_Identifier_Disease__c":[{"URL__c":"https://www.ncbi.nlm.nih.gov/books/NBK1323","Source__c":"Gene Review","Xref__c":"NBK1323"},{"URL__c":"https://www.ncbi.nlm.nih.gov/medgen/?term=333047","Source__c":"C1838244","Xref__c":"MEDGEN:333047"},{"URL__c":"https://browser.ihtsdotools.org/?perspective=full&conceptId1=698846009","Source__c":"MONDO:0010870","Xref__c":"698846009"},{"URL__c":"https://www.ebi.ac.uk/ols4/ontologies/doid/classes?obo_id=DOID%3A0111078","Source__c":"MONDO:0010870","Xref__c":"DOID:0111078"},{"URL__c":"https://uts.nlm.nih.gov/uts/umls/concept/C1838244","Source__c":"C1838244","Xref__c":"C1838244"},{"URL__c":"https://www.omim.org/entry/600334","Source__c":"C1838244; MONDO:0010870; ORPHA:609","Xref__c":"OMIM:600334"},{"URL__c":"https://www.orpha.net/en/disease/detail/609","Source__c":"C1838244; MONDO:0010870","Xref__c":"ORPHA:609"},{"URL__c":"http://purl.obolibrary.org/obo/MONDO_0010870","Source__c":"GARD:0013154","Xref__c":"MONDO:0010870"}],"GARD_Disease_Gene__c":[{"GeneSymbol__c":"TTN","GHR_URL__c":"https://medlineplus.gov/genetics/gene/ttn","Gene_Type__c":"protein-coding gene","Causal_Gene__c":true}],"Inheritance__c":["Autosomal dominant"],"GARD_Disease_Feature__c":[{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Excluded (0%)","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":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"The presence of abnormal electromyographic patterns indicative of myopathy, such as small-short polyphasic motor unit potentials.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003458","HPO_Synonym__c":"EMG: myopathic changes; EMG: myopathy; Myopathic electromyogram","HPO_Name__c":"EMG: myopathic abnormalities","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Procedure_EMG"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"Weakness of the quadriceps muscle (that is, of the muscle fasciculus of quadriceps femoris).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003731","HPO_Synonym__c":"Quadriceps weakness","HPO_Name__c":"Quadriceps muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Presence of abnormal vacuoles (membrane-bound organelles) in the sarcolemma. On histological staining with hematoxylin and eosin, rimmed vacuoles are popcorn-like clear vacuoles with a densely blue rim. The vacuoles are often associated with cytoplasmic and occasionally intranuclear eosinophilic inclusions.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003805","HPO_Synonym__c":"Rimmed vacuoles on biopsy","HPO_Name__c":"Rimmed vacuoles","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Weakness of the muscles responsible for dorsiflexion of the foot, that is, of the movement of the toes towards the shin. The foot dorsiflexors include the tibialis anterior, the extensor hallucis longus, the extensor digitorum longus, and the peroneus tertius muscles.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009027","HPO_Synonym__c":"Foot drop; Foot extensor weakness; Footdrop; Inability to heel walk; Inability to walk on heels","HPO_Name__c":"Foot dorsiflexor weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Excluded (0%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009077","HPO_Name__c":"Weakness of long finger extensor muscles","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","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":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal accumulation of lipids in skeletal muscle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009058","HPO_Synonym__c":"Fat accumulation in muscle fibers; Fat deposits in muscle fibers; Increased muscle lipid content; Lipid accumulation in skeletal muscle; Muscle lipidosis; Skeletal muscle lipid accumulation","HPO_Name__c":"Increased muscle lipid content","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Lab"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormally high degree of muscle fiber size variation. This phenotypic feature can be observed upon muscle biopsy.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003557","HPO_Synonym__c":"Increased fiber size variation; Increased variability in muscle fiber size; Increased variation in fiber size; Increased variation in muscle fiber size; Variation in muscle fiber size","HPO_Name__c":"Increased variability in muscle fiber diameter","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Excluded (0%)","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:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Reduced strength of the muscles that lift or otherwise move the foot at the ankle.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0031374","HPO_Name__c":"Ankle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"Atrophy of the peroneous muscles, peroneus longus (also known as Fibularis longus), Peroneus brevis (also known as fibularis brevis, and Peroneus tertius (also known as fibularis tertius).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0009049","HPO_Synonym__c":"Peroneal atrophy","HPO_Name__c":"Peroneal muscle atrophy","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormal gait pattern that arises from weakness of the pretibial and peroneal muscles due to a lower motor neuron lesion. Affected patients have footdrop and are unable to dorsiflex and evert the foot. The leg is lifted high on walking so that the toes clear the ground, and there may be a slapping noise when the foot strikes the ground again.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003376","HPO_Synonym__c":"High stepping","HPO_Name__c":"Steppage gait","Feature_System__c":"Nervous System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","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:609","HPO_Frequency__c":"Occasional (5-29%)","Feature__r":{"HPO_Description__c":"A lack of strength of the proximal muscles of the legs.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008994","HPO_Synonym__c":"Muscle weakness, proximal, lower limbs; Proximal muscle weakness in lower limbs","HPO_Name__c":"Proximal lower limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Description__c":"An abnormality in which the nuclei of sarcomeres take on an abnormally central localization (or in which this feature is found in an increased proportion of muscle cells).","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0003687","HPO_Synonym__c":"Central nuclei; Centralized nuclei; Centralized sarcomeric nuclei","HPO_Name__c":"Centrally nucleated skeletal muscle fibers","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","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:609","HPO_Frequency__c":"Uncommon (<1-4%)","Feature__r":{"HPO_Description__c":"Reduced strength of the distal musculature of the arms.","HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008959","HPO_Name__c":"Distal upper limb muscle weakness","Feature_System__c":"Musculoskeletal System","HPO_Feature_Type__c":"Symptom"}},{"Provided_By__c":"ORPHA:609","HPO_Frequency__c":"Frequent (30-79%)","Feature__r":{"HPO_Feature_URL__c":"https://hpo.jax.org/browse/term/HP:0008180","HPO_Synonym__c":"Mildly elevated CPK; Mildly elevated creatine phosphokinase; Mildly elevated serum CK; Mildly elevated serum CPK; Mildly elevated serum phospho-CK; Mildly increased creatine kinase; Mildly increased serum creatine kinase; Moderately elevated serum CK; Moderately elevated serum CPK; Moderately increased serum creatine kinase","HPO_Name__c":"Mildly elevated creatine kinase","HPO_Feature_Type__c":"Lab"}}],"tags":{"Cause":["Genetics"],"Disease Category":["Genetics","Neurology","Muscular Dystrophy"],"Specialist":["Genetics","Neurology","Neuromuscular medicine"],"Account":["Muscular Dystrophy"]},"synonyms":["distal myopathy, udd type"," distal titinopathy"," finnish tibial muscular dystrophy"," tardive tibial muscular dystrophy"," tibial muscular dystrophy, tardive"," tmd"," udd distal myopathy"," udd myopathy"," udd type distal myopathy"]}