Kisho is an information platform, not a medical provider. Nothing on this site constitutes medical advice, diagnosis, or treatment recommendations. All content is aggregated from publicly available sources (including ClinicalTrials.gov, PubMed, FDA.gov, and Orphanet) and is provided for informational purposes only. Clinical trial eligibility, treatment decisions, and any health-related actions should always be discussed with a qualified healthcare professional. Kisho does not endorse any specific therapy, organization, or clinical trial. Terms of use · Privacy policy
Features include very common findings: EEG abnormality, Cessation of head growth, Secondary microcephaly, and EEG with abnormally slow frequencies and others; and common findings: Wide mouth, Strabismus, Widely spaced teeth, and Autistic behavior and others. 50 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 16 | Autistic behavior, Abnormal speech pattern, Lower limb hyperreflexia |
Biomarker and diagnostic research for Angelman syndrome due to maternal 15q11q13 deletion has been reported in the published literature.
Phenotype severity distribution: 7 very common features, 28 common features.
No clinical trials have been registered for Angelman syndrome due to maternal 15q11q13 deletion.
11 publications have been identified in PubMed for Angelman syndrome due to maternal 15q11q13 deletion. Research spans Case Report / Case Series (18%), Epidemiology / Natural History (18%), and Gene Therapy / Novel Therapeutics (18%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 2 | 18% |
Data assembled from 4 of 12 sources · Last updated Sep 20, 2026, 8:47 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Angelman syndrome due to maternal 15q11q13 deletion
Head and neck | 3 | Secondary microcephaly, Mandibular prognathia, Mild microcephaly |
Digestive system | 3 | Constipation, Feeding difficulties, Difficulty swallowing (dysphagia) |
Arms and legs | 2 | Lower limb hyperreflexia, Recurrent hand flapping |
Growth and development | 1 | Cessation of head growth |
Eyes | 1 | Strabismus |
Skin | 1 | Hypopigmentation of the skin |
Bones and joints | 1 | Sideways curvature of the spine (scoliosis) |
Metabolism | 1 | Heat intolerance |
Disease patterns and progression |
2 |
18% |
New treatment approaches | 2 | 18% |
Other research | 1 | 9% |
Testing and diagnosis research | 1 | 9% |
Research summaries | 1 | 9% |
Clinical study results | 1 | 9% |
Laboratory research | 1 | 9% |
Graça NNJ (2026). [PMID: 42184406](https://pubmed.ncbi.nlm.nih.gov/42184406/). *Bol Med Hosp Infant Mex*. [Case Report / Case Series]
Butler MG (2026). [PMID: 41683698](https://pubmed.ncbi.nlm.nih.gov/41683698/). *International journal of molecular sciences*. [Other]
Leffler M (2026). [PMID: 41714940](https://pubmed.ncbi.nlm.nih.gov/41714940/). *Journal of neurodevelopmental disorders*. [Clinical Trial Publication]
Mohamed AM (2025). [PMID: 41299679](https://pubmed.ncbi.nlm.nih.gov/41299679/). *BMC medical genomics*. [Epidemiology / Natural History]
Peng H (2025). [PMID: 40229547](https://pubmed.ncbi.nlm.nih.gov/40229547/). *Scientific reports*. [Diagnostic / Biomarker]
Milazzo C (2025). [PMID: 40877933](https://pubmed.ncbi.nlm.nih.gov/40877933/). *Molecular autism*. [Review / Meta-Analysis]
Wang SE (2024). [PMID: 39011107](https://pubmed.ncbi.nlm.nih.gov/39011107/). *Research square*. [Epidemiology / Natural History]
Carriero PL (2024). [PMID: 38930051](https://pubmed.ncbi.nlm.nih.gov/38930051/). *Journal of clinical medicine*. [Gene Therapy / Novel Therapeutics]
Schmok T (2024). [PMID: 38837660](https://pubmed.ncbi.nlm.nih.gov/38837660/). *American journal of medical genetics. Part A*. [Gene Therapy / Novel Therapeutics]
Gilmore RB (2024). [PMID: 39485792](https://pubmed.ncbi.nlm.nih.gov/39485792/). *PloS one*. [Basic Science / Preclinical]
AI-curated news mentioning Angelman syndrome due to maternal 15q11q13 deletion
Updated Aug 25, 2026
The FDA approved Genglycos (pariglasgene brecaparvovec-opnr) to reduce daily cornstarch intake in patients aged 8 years and older with glycogen storage disease type Ia. Known as Von Gierke disease, GSDIa is a rare metabolic disorder caused by a mutation in the G6PC gene. This genetic variation leads to a deficiency in glucose-6-phosphatase (G6Pase), an enzyme needed to release glucose into the bloodstream. Without this enzyme, the body cannot properly maintain blood glucose levels, causing severe hypoglycemia and other serious metabolic complications · Pariglasgene brecaparvovec is an adeno-associated virus (AAV) serotype 8 based gene therapy that delivers a functional copy of the G6PC gene into liver cells, enabling the production of normally functioning G6Pase. Ultragenyx stated that as part of its postmarketing commitments to the FDA, the Company will provide 2 years of clinical data from open-label commercial treatment of 50 patients and 20 control patients through its existing GSDIa Disease Monitoring Program. ... Ultragenyx announces US FDA approval of Genglycos™ gene therapy, the first-ever FDA-approved treatment designed to treat the underlying cause of glycogen storage disease type Ia (GSDIa). “The reduced reliance on cornstarch, experienced by patients in our clinical studies, demonstrates this gene therapy’s ability to establish the normal breakdown of glycogen to produce glucose during fasting or episodes of metabolic stress. This ability to regulate glucose has alleviated the disease burden and has the potential to mitigate the risk of severe or life-threatening hypoglycemia for these patients.” Close more info about First Gene Therapy Approved for Glycogen Storage Disease Type la