16p11.2 duplication syndrome

Proximal 16p11.2 microduplication syndrome Autosomal dominant - en.svg The inheritance pattern of 16p11.2 duplications is autosomal dominant. Medical genetics 16p11.2 duplication syndrome is a genetic condition caused by duplication of a specific region on chromosome 16. The odds of developing autism spectrum disorder are elevated and comparable to the rate with 16p11.2 deletion. The rate of having ADHD is higher than in people with deletion.Niarchou Maria Chawner Samuel J. R. A. Doherty Joanne L. Maillard Anne M. Jacquemont Sébastien Chung Wendy K. Green-Snyder LeeAnne Bernier Raphael A. Goin-Kochel Robin P. Hanson Ellen Linden David E. J. Linden Stefanie C. Raymond F. Lucy Skuse David Hall Jeremy Owen Michael J. Bree Marianne B. M. van den Psychiatric disorders in children with 16p11.2 deletion and duplication Translational Psychiatry 16 January 2019 9 1 8 10.1038/s41398-018-0339-8 en 2158-3188 free 30664628 6341088 Fetit Rana Price David J. Lawrie Stephen M. Johnstone Mandy Understanding the clinical manifestations of 16p11.2 deletion syndrome: a series of developmental case reports in children Psychiatric Genetics October 2020 30 5 136–140 10.1097/YPG.0000000000000259 0955-8829 free 32732550 7497286 Signs and symptoms Individuals with a 16p11.2 duplication may experience intellectual impairment and developmental delay. Roughly one-third of kids with this illness experience delays in learning motor skills like sitting, crawling, or walking. Affected people's average IQ is roughly 26 points lower than their parents' IQ without the duplication. Roughly 80% of individuals with a 16p11.2 duplication experience speech or language difficulties. It may have an impact on both receptive and expressive language abilities.16p11.2 duplication: MedlinePlus Genetics MedlinePlus 2016-12-01 https://medlineplus.gov/genetics/condition/16p112-duplication/ 2024-02-23 ADHD is among the most prevalent behavioral issues linked to this chromosomal alteration. Approximately one in five individuals with a 16p11.2 duplication are diagnosed with autism spectrum disorder, a condition that impacts social and communication abilities. Additionally, there is a higher chance of mental health issues among affected people, such as sadness, anxiety, and schizophrenia. With this illness, recurrent seizures are conceivable, albeit they are uncommon in the majority of affected persons. A 16p11.2 duplication can also result in other problems such as renal and urinary system deformities. 16p11.2 duplications do not, however, exhibit a specific pattern of physical anomalies; in fact, the indications and symptoms associated with the chromosomal alteration differ even among afflicted family members. Causes A genetic region on the short (p) arm of chromosome 16 at a place known as p11.2 is duplicated in individuals with a 16p11.2 duplication. It is sufficient for a duplication in one copy of chromosome 16 in each cell to generate the disease since 16p11.2 duplications follow an autosomal dominant inheritance pattern. Research Researchers at Northwestern University created a mouse model of the syndrome.Forrest Marc P. Dos Santos Marc Piguel Nicolas H. Wang Yi-Zhi Hawkins Nicole A. Bagchi Vikram A. Dionisio Leonardo E. Yoon Sehyoun Simkin Dina Martin-de-Saavedra Maria Dolores Gao Ruoqi Horan Katherine E. George Alfred L. LeDoux Mark S. Kearney Jennifer A. Savas Jeffrey N. Penzes Peter Rescue of neuropsychiatric phenotypes in a mouse model of 16p11.2 duplication syndrome by genetic correction of an epilepsy network hub Nature Communications 17 February 2023 14 1 825 10.1038/s41467-023-36087-x en 2041-1723 free 36808153 9938216 2023NatCo..14..825F References External links LD41.F1 Q92.3 614671 12388 Proximal 16p11.2 microduplication syndrome 370079 Category:Autosomal duplications Category:Syndromic autism