Paediatric genomics: diagnosing rare disease in children
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Updated: Feb 15, 2026

Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER
Published on: June 23, 2012
Caroline F Wright1, David R FitzPatrick2, Helen V Firth3,4
1University of Exeter Medical School, Institute of Biomedical and Clinical Science, Royal Devon and Exeter Hospital, Barrack Road, Exeter EX2 5DW, UK.
Insights
Genomic technologies like whole-exome and whole-genome sequencing are improving molecular diagnoses for rare pediatric diseases. This advances prognosis, management, and research for affected children and families.
Area of Science:
- Genetics
- Paediatric Medicine
- Genomic Medicine
Background:
- Most rare diseases impact children, often stemming from genetic factors.
- Achieving a precise molecular diagnosis for these conditions remains a significant challenge.
- Paediatric genomics is a developing field addressing diagnostic difficulties.
Purpose of the Study:
- To highlight the role of advanced genomic technologies in diagnosing rare paediatric diseases.
- To discuss the impact of improved genetic diagnoses on patient care and research.
Main Methods:
- Incorporation of next-generation sequencing (NGS), including whole-exome sequencing (WES) and whole-genome sequencing (WGS).
- Integration of these technologies into clinical and research settings.
- Leveraging population genetic variation data.
Main Results:
- Increased identification rates of genes responsible for rare paediatric conditions.
- Enhanced diagnostic capabilities for rare paediatric diseases.
- Improved understanding of the genetic underpinnings of these diseases.
Conclusions:
- Genomic approaches are crucial for advancing the diagnosis and understanding of rare paediatric diseases.
- Accurate genetic diagnoses lead to better patient prognosis, management, and targeted research.
- Paediatric genomics offers significant benefits for affected children and their families.
Abstract:
The majority of rare diseases affect children, most of whom have an underlying genetic cause for their condition. However, making a molecular diagnosis with current technologies and knowledge is often still a challenge. Paediatric genomics is an immature but rapidly evolving field that tackles this issue by incorporating next-generation sequencing technologies, especially whole-exome sequencing and whole-genome sequencing, into research and clinical workflows. This complex multidisciplinary approach, coupled with the increasing availability of population genetic variation data, has already resulted in an increased discovery rate of causative genes and in improved diagnosis of rare paediatric disease. Importantly, for affected families, a better understanding of the genetic basis of rare disease translates to more accurate prognosis, management, surveillance and genetic advice; stimulates research into new therapies; and enables provision of better support.
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