GATAD2B-associated neurodevelopmental disorder is a rare genetic neurodevelopmental disorder which is characterized by severe intellectual disabilities, speech delays, hypotonia and facial dysmorphia.[1]
| GATAD2B-associated neurodevelopmental disorder | |
|---|---|
| Other names | GAND |
| Specialty | Medical genetics |
| Usual onset | Birth |
| Duration | Life-long |
| Causes | Mutation in the GATAD2B gene. |
| Prevention | none |
| Prognosis | Medium, nearing good |
| Frequency | very rare, only 78 cases have been described in medical literature |
| Deaths | - |
Signs and symptoms
editThe following is a list of all the symptoms:[2]
- Moderate to severe intellectual disabilities
- Speech delay
- Macrocephaly
- Childhood low muscle tone
- Feeding problems
- Variable cardiac anomalies
- Facial dysmorphisms
Additional symptoms include polyhydramnios and epilepsy.[3]
Causes
editThis condition is caused by either (usually sporadic or de novo) alterations or a deletion of the GATAD2B gene, located in chromosome 1. In familial cases, inheritance is usually autosomal dominant.[4][5]
Epidemiology
edit78 cases have been described in medical literature.[6]
References
edit- ^ Sensory 5. "GATAD2B-associated neurodevelopmental disorder | Rare Diseases". RareGuru. Retrieved 2022-06-04.
{{cite web}}: CS1 maint: numeric names: authors list (link) - ^ "GATAD2B-associated neurodevelopmental disorder". NORD (National Organization for Rare Disorders). Retrieved 2022-06-04.
- ^ Shieh, Christine; Jones, Natasha; Vanle, Brigitte; Au, Margaret; Huang, Alden Y.; Silva, Ana P.G.; Lee, Hane; Douine, Emilie D.; Otero, Maria G.; Choi, Andrew; Grand, Katheryn (May 2020). "GATAD2B-associated neurodevelopmental disorder (GAND): clinical and molecular insights into a NuRD-related disorder". Genetics in Medicine. 22 (5): 878–888. doi:10.1038/s41436-019-0747-z. ISSN 1098-3600. PMC 7920571. PMID 31949314.
- ^ "Helping Hands for GAND". Helping Hands for GAND. Retrieved 2022-06-04.
- ^ "GATAD2B-associated neurodevelopmental disorder - About the Disease - Genetic and Rare Diseases Information Center". rarediseases.info.nih.gov. Retrieved 2022-06-04.
- ^ Vera, Gabriella; Sorlin, Arthur; Delplancq, Geoffroy; Lecoquierre, François; Brasseur-Daudruy, Marie; Petit, Florence; Smol, Thomas; Ziegler, Alban; Bonneau, Dominique; Colin, Estelle; Mercier, Sandra (2020-10-01). "Clinical and molecular description of 19 patients with GATAD2B-Associated Neurodevelopmental Disorder (GAND)" (PDF). European Journal of Medical Genetics. 63 (10): 104004. doi:10.1016/j.ejmg.2020.104004. ISSN 1769-7212. PMID 32688057. S2CID 220671164.
Further reading
editUnique - Rare Chromosome Disorder Support Group. (2022). GATAD2B-associated neurodevelopmental disorder (GAND)/GATAD2B syndrome. https://rarechromo.org/media/information/Chromosome%20%201/GATAD2B-associated%20neurodevelopmental%20disorder%20(GAND)%20GATAD2B%20syndromeQFN.pdf