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Features include always present findings: Elevated creatine kinase (muscle enzyme) (elevated circulating creatine kinase concentration), Inability to walk, Hypoplasia of the brainstem, and Severe intellectual disability and others; and very common findings: Enlarged calf muscles (calf muscle hypertrophy). 25 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 6 | Inability to walk, Hypoplasia of the brainstem, Severe intellectual disability |
Muscles | 3 | Flexion contracture, Progressive muscle deterioration (muscular dystrophy), Enlarged calf muscles (calf muscle hypertrophy) |
Head and neck | 2 | Facial palsy, Microcephaly |
Eyes | 2 | Developmental cataract, Retinal dystrophy |
Heart and blood vessels | 2 | Abnormal left ventricular function, Heart muscle disease (cardiomyopathy) |
Lab test results | 1 | Elevated creatine kinase (muscle enzyme) (elevated circulating creatine kinase concentration) |
POMT1 function has not been fully characterized.
Muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B1 is associated with mutations in the POMT1 gene on chromosome 9.
Genetic testing for POMT1 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B1 has been reported in the published literature.
Phenotype severity distribution: 8 always present features, 1 very common feature, 5 common features.
No clinical trials have been registered for muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B1.
127 publications have been identified in PubMed for muscular dystrophy-dystroglycanopathy (congenital with intellectual disability), type B1. Research spans Basic Science / Preclinical (26%), Case Report / Case Series (24%), and Review / Meta-Analysis (20%).
Research Type | Count | % of Total |
|---|---|---|
Laboratory research | 33 | 26% |
Patient case studies | 31 | 24% |
Research summaries | 26 | 20% |
Disease patterns and progression | 19 | 15% |
New treatment approaches | 7 | 6% |
Testing and diagnosis research | 5 | 4% |
Clinical study results | 5 | 4% |
Other research | 1 | 1% |
Labella B (2026). [PMID: 41252304](https://pubmed.ncbi.nlm.nih.gov/41252304/). *J Neuromuscul Dis*. [Review / Meta-Analysis]
Imae R (2026). [PMID: 41917390](https://pubmed.ncbi.nlm.nih.gov/41917390/). *Adv Exp Med Biol*. [Review / Meta-Analysis]
Qureshi AM (2026). [PMID: 42083863](https://pubmed.ncbi.nlm.nih.gov/42083863/). *Circ Cardiovasc Interv*. [Clinical Trial Publication]
Johari M (2026). [PMID: 41678358](https://pubmed.ncbi.nlm.nih.gov/41678358/). *Brain*. [Clinical Trial Publication]
Radio FC (2026). [PMID: 41904678](https://pubmed.ncbi.nlm.nih.gov/41904678/). *Genet Med*. [Case Report / Case Series]
Farkašová Iannaccone S (2026). [PMID: 42189382](https://pubmed.ncbi.nlm.nih.gov/42189382/). *Forensic Sci Med Pathol*. [Case Report / Case Series]
Rossini E (2026). [PMID: 41251564](https://pubmed.ncbi.nlm.nih.gov/41251564/). *Muscle Nerve*. [Epidemiology / Natural History]
Quak ZX (2026). [PMID: 42074613](https://pubmed.ncbi.nlm.nih.gov/42074613/). *J Clin Med*. [Review / Meta-Analysis]
López-Márquez A (2026). [PMID: 41287928](https://pubmed.ncbi.nlm.nih.gov/41287928/). *Dis Model Mech*. [Basic Science / Preclinical]
Gaviglio A (2026). [PMID: 40673334](https://pubmed.ncbi.nlm.nih.gov/40673334/). *Crit Rev Clin Lab Sci*. [Review / Meta-Analysis]
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 9:55 AM UTC
Online Mendelian Inheritance in Man