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Autosomal dominant limb-girdle muscular dystrophy type 1F (LGMD1F) is a subtype of autosomal dominant limb-girdle muscular dystrophy,with a variable age of onset, characterized by progressive, proximal weakness and wasting of the shoulder and pelvic musculature (with the pelvic girdle, and especially the ileopsoas muscle, being more affected) and frequent association of calf hypertrophy, dysphagia, arachnodactyly with or without finger contractures and/or distal and axial muscle involvement. Additional features include an abnormal gait, exercise intolerance, myalgia, fatigue and respiratory insufficiency. Cardiac conduction defects are typically not observed.
Features include always present findings: Pelvic girdle muscle weakness, Shoulder girdle muscle weakness, and Elevated circulating creatine concentration; and very common findings: Distal muscle weakness. 20 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Muscles | 9 | Centrally nucleated skeletal muscle fibers, Difficulty climbing stairs, Progressive muscle deterioration (muscular dystrophy) |
TNPO3 function has not been fully characterized.
Autosomal dominant limb-girdle muscular dystrophy type 1F is associated with mutations in the TNPO3 gene on chromosome 7.
Genetic testing for TNPO3 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 3 always present features, 1 very common feature, 2 common features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
1 clinical trial registered, 1 recruiting. Interventions under study include other interventions. Research is primarily sponsored by academic and government institutions.
1 publication has been identified in PubMed for autosomal dominant limb-girdle muscular dystrophy type 1F. Research spans Review / Meta-Analysis (100%).
Mohan S (2024). [PMID: 39215466](https://pubmed.ncbi.nlm.nih.gov/39215466/). *Ann Clin Transl Neurol*. [Review / Meta-Analysis]
Data assembled from 7 of 12 sources · Last updated Sep 20, 2026, 8:42 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Bones and joints | 2 | Centrally nucleated skeletal muscle fibers, Joint contracture |
Brain and nerves | 2 | Difficulty swallowing (dysphagia), Spinal rigidity |
Digestive system | 1 | Difficulty swallowing (dysphagia) |
Eyes | 1 | Ptosis |
Lungs and breathing | 1 | Difficulty breathing due to muscle weakness (respiratory insufficiency due to muscle weakness) |
Lab test results | 1 | Elevated circulating creatine concentration |