Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India

Intellectual disability (ID) is seen in around 2.5% of global population and can vary from mild to severe and profound ID. There can be multiple affected family members if it is inherited, though many autosomal dominant ID cases would be due to de novo mutations are very less likely to recur in fami...

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Main Authors: Inusha Panigrahi, Sudha Rao, Shalu Verma Kumar, Divya Kumari, Parminder Kaur
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Case Reports in Genetics
Online Access:http://dx.doi.org/10.1155/2024/6009569
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author Inusha Panigrahi
Sudha Rao
Shalu Verma Kumar
Divya Kumari
Parminder Kaur
author_facet Inusha Panigrahi
Sudha Rao
Shalu Verma Kumar
Divya Kumari
Parminder Kaur
author_sort Inusha Panigrahi
collection DOAJ
description Intellectual disability (ID) is seen in around 2.5% of global population and can vary from mild to severe and profound ID. There can be multiple affected family members if it is inherited, though many autosomal dominant ID cases would be due to de novo mutations are very less likely to recur in families. A confirmatory diagnosis is facilitated by genetic testing like chromosomal microarray and next generation sequencing. We describe here our cohort of 15 patients: children and adolescents with ID diagnosed by using sequencing technologies and parental segregation studies. Most of the variants identified were de novo variants and consistent with sporadic occurrence, and blended phenotypes were identified. Appropriate genetic counseling was performed and options for prenatal diagnosis were discussed. Thus, advanced sequencing technologies enable identification of likely causative de novo variants associated with intellectual disability and dysmorphism.
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institution Kabale University
issn 2090-6552
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publishDate 2024-01-01
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series Case Reports in Genetics
spelling doaj-art-3d6d5feb63bc4e6d8cdf90186276b9a82025-02-03T10:25:25ZengWileyCase Reports in Genetics2090-65522024-01-01202410.1155/2024/6009569Intellectual Disability and Blended Phenotypes: Insights from a Centre in North IndiaInusha Panigrahi0Sudha Rao1Shalu Verma Kumar2Divya Kumari3Parminder Kaur4Department of PediatricsDhitiomics Technologies Private Ltd.Dhitiomics Technologies Private Ltd.Department of PediatricsDepartment of PediatricsIntellectual disability (ID) is seen in around 2.5% of global population and can vary from mild to severe and profound ID. There can be multiple affected family members if it is inherited, though many autosomal dominant ID cases would be due to de novo mutations are very less likely to recur in families. A confirmatory diagnosis is facilitated by genetic testing like chromosomal microarray and next generation sequencing. We describe here our cohort of 15 patients: children and adolescents with ID diagnosed by using sequencing technologies and parental segregation studies. Most of the variants identified were de novo variants and consistent with sporadic occurrence, and blended phenotypes were identified. Appropriate genetic counseling was performed and options for prenatal diagnosis were discussed. Thus, advanced sequencing technologies enable identification of likely causative de novo variants associated with intellectual disability and dysmorphism.http://dx.doi.org/10.1155/2024/6009569
spellingShingle Inusha Panigrahi
Sudha Rao
Shalu Verma Kumar
Divya Kumari
Parminder Kaur
Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
Case Reports in Genetics
title Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
title_full Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
title_fullStr Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
title_full_unstemmed Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
title_short Intellectual Disability and Blended Phenotypes: Insights from a Centre in North India
title_sort intellectual disability and blended phenotypes insights from a centre in north india
url http://dx.doi.org/10.1155/2024/6009569
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AT divyakumari intellectualdisabilityandblendedphenotypesinsightsfromacentreinnorthindia
AT parminderkaur intellectualdisabilityandblendedphenotypesinsightsfromacentreinnorthindia