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Updated: Feb 26, 2026

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Quantification of Orofacial Phenotypes in Xenopus
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The Role of Noncoding Genetic Variation in Isolated Orofacial Clefts
F Thieme1,2, K U Ludwig1,2
11 Institute of Human Genetics, University of Bonn, Bonn, Germany.
Journal of Dental Research
|July 22, 2017
Summary
Genome-wide association studies reveal that noncoding DNA regions harbor genetic risk variants for complex traits like nonsyndromic orofacial clefts (nsOFC). Functional genomics approaches are crucial for understanding the biological pathways involved in nsOFC development.
Area of Science:
- Genomics
- Developmental Biology
- Medical Genetics
Background:
- Genome-wide association studies (GWASs) have identified numerous genetic risk variants for complex traits.
- A significant proportion of these variants are located in noncoding DNA regions, challenging previous notions of
Purpose of the Study:
- To review the current understanding of noncoding regions' role in nonsyndromic orofacial clefts (nsOFC) etiology.
- To describe methods for identifying causal variants and affected biological pathways in nsOFC.
- To highlight the contribution of functional genomics to nsOFC research.
Main Methods:
- Review of existing literature on nsOFC genetic risk factors.
- Analysis of data from public databases.
- Assessment of genetic variability within risk loci.
- In vitro and in vivo experimental validation.
Main Results:
- Noncoding regions play a significant role in the genetic etiology of nsOFC.
- Identifying causal variants in these regions is challenging due to complex genetic architecture.
- Functional genomics provides critical insights into nsOFC pathogenesis.
Conclusions:
- Understanding noncoding variants is essential for deciphering the genetic basis of nsOFC.
- Integrated approaches combining genomic data and functional studies are necessary.
- Functional genomics is a rapidly advancing field crucial for understanding nsOFC.
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