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Any autosomal recessive non-syndromic intellectual disability in which the cause of the disease is a mutation in the MED23 gene.
Features include always present findings: Profound intellectual disability, Sleep disturbance, Hypoplasia of the pons, and Irritability and others; and common findings: Dystonia, Thin corpus callosum, Ventricular septal defect, and Choreoathetosis and others. 22 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 11 | Dystonia, Profound intellectual disability, Irritability |
Heart and blood vessels | 2 | Ventricular septal defect, Atrial septal defect |
Muscles | 1 | Axial hypotonia |
Head and neck | 1 | Microcephaly |
Digestive system | 1 | Feeding difficulties |
Age of onset: at birth, infancy.
MED23 encodes mediator complex subunit 23 (1,368 aa). Required for transcriptional activation subsequent to the assembly of the pre-initiation complex. Highest expression in Brain Cerebellum (28.1 TPM) and Brain Cerebellar Hemisphere (25.1 TPM).
Intellectual disability, autosomal recessive 18 is associated with mutations in the MED23 gene on chromosome 6.
MED23 is classified as a druggable target (Transcription Factor and Transcription Factor Complex categories) with score 0.0.
Genetic testing for MED23 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for intellectual disability, autosomal recessive 18 has been reported in the published literature.
Phenotype severity distribution: 15 always present features, 6 common features.
No clinical trials have been registered for intellectual disability, autosomal recessive 18.
133 publications have been identified in PubMed for intellectual disability, autosomal recessive 18. Kisho has analyzed 105 by research type. Research spans Review / Meta-Analysis (49%), Basic Science / Preclinical (16%), and Epidemiology / Natural History (15%).
Research Type | Count | % of Total |
|---|---|---|
Research summaries | 51 | 49% |
Laboratory research | 17 | 16% |
Disease patterns and progression | 16 | 15% |
Patient case studies | 12 | 11% |
Clinical study results | 6 | 6% |
Testing and diagnosis research | 2 | 2% |
New treatment approaches | 1 | 1% |
Ahmad S (2026). [PMID: 41649149](https://pubmed.ncbi.nlm.nih.gov/41649149/). *Clin Dysmorphol*. [Case Report / Case Series]
Ryvlin P (2026). [PMID: 41735792](https://pubmed.ncbi.nlm.nih.gov/41735792/). *Curr Opin Neurol*. [Review / Meta-Analysis]
Jones H (2026). [PMID: 42123950](https://pubmed.ncbi.nlm.nih.gov/42123950/). *Nutrients*. [Review / Meta-Analysis]
Ek M (2026). [PMID: 41514368](https://pubmed.ncbi.nlm.nih.gov/41514368/). *Genome Med*. [Basic Science / Preclinical]
Ahmad B (2026). [PMID: 42249392](https://pubmed.ncbi.nlm.nih.gov/42249392/). *BMC Neurol*. [Epidemiology / Natural History]
Zhu L (2026). [PMID: 41721346](https://pubmed.ncbi.nlm.nih.gov/41721346/). *Orphanet J Rare Dis*. [Epidemiology / Natural History]
Dudley AM (2026). [PMID: 41136202](https://pubmed.ncbi.nlm.nih.gov/41136202/). *Pract Neurol*. [Review / Meta-Analysis]
Balestrini S (2026). [PMID: 41137852](https://pubmed.ncbi.nlm.nih.gov/41137852/). *Epilepsia*. [Epidemiology / Natural History]
Manti F (2026). [PMID: 41450729](https://pubmed.ncbi.nlm.nih.gov/41450729/). *Neurol Genet*. [Epidemiology / Natural History]
Baigh ZH (2026). [PMID: 42255876](https://pubmed.ncbi.nlm.nih.gov/42255876/). *Cureus*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 6:55 PM UTC
Online Mendelian Inheritance in Man
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