National Organization for Rare Disorders, Inc.
It is possible that the main title of the report SYNGAP1-related NSID is not the name you expected.
Intellectual disability (ID) is a common disorder defined by the presence of significant limitations in both cognitive and adaptive behaviors with onset before the age of 18. ID is subdivided into syndromic intellectual disability, in which intellectual deficits and distinguishing morphologic, radiologic or metabolic features are present, and non-syndromic intellectual disability (NSID), in which intellectual deficits appear without these physical abnormalities. Mutations in the SYNGAP1 gene are thought to be a relatively common cause of NSID. NSID patients, including those associated with SYNGAP1 mutation, typically exhibit moderate to severe ID with varying degrees of epilepsy and/or autism spectrum disorders (ASD) and may also have attention deficits, impulsivity, and/or mood disorders. SYNGAP1-related NSID patients with epilepsy usually respond well to medications, yet some are refractory (difficult to control even with multiple drugs). SYNGAP1-related NSID is a sporadic condition that is caused by de novo (spontaneous, noninherited) mutations. The use of genomic sequencing has dramatically increased the capacity of physicians to identify these mutations.
SYNGAP1-related NSID in humans was first reported in 2009 and is one of the first genes found to be associated with NSID. Since initially described, an increasing number of children with SYNGAP1-related NSID have been identified, suggesting that it may represent one of the most common causes of ID.
Bridge the Gap - SYNGAP Education and Research Foundation
- 15319 Redbud Berry Way
- Cypress, TX 77433
- Tel: 832-671-0010
- Email: email@example.com
- Website: http://www.bridgesyngap.org
For a Complete Report
This is an abstract of a report from the National Organization for Rare Disorders (NORD). For a full-text version of this report, go to www.rarediseases.org and click on Rare Disease Database under "Rare Disease Information".
The information provided in this report is not intended for diagnostic purposes. It is provided for informational purposes only.
It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report.
This disease entry is based upon medical information available through the date at the end of the topic. Since NORD's resources are limited, it is not possible to keep every entry in the Rare Disease Database completely current and accurate. Please check with the agencies listed in the Resources section for the most current information about this disorder.
Last Updated: 5/28/2015
Copyright 2015 National Organization for Rare Disorders, Inc.
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