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The new genetics and chronic obstructive pulmonary disease
Noor Kalsheker1, Sally Chappell
1Division of Clinical Chemistry, Molecular Medical Sciences Institute of Genetics, Queens Medical Centre, University of Nottingham, Nottingham, UK. noor.kalsheker@nottingham.ac.uk
COPD
|August 2, 2008
Summary
Genetic factors influence chronic obstructive airways disease (COPD) risk. Genome-wide association studies offer new hope for identifying COPD susceptibility genes and understanding disease complexity.
Area of Science:
- Pulmonary Medicine
- Genetics
- Epidemiology
Background:
- Genetic factors are implicated in chronic obstructive airways disease (COPD) susceptibility, supported by epidemiological and family studies.
- Previous candidate gene studies have often been underpowered, leading to conflicting and unreplicated findings regarding genetic variants.
- Limited investigation of full genetic variation within candidate genes has hindered progress in understanding COPD pathogenesis.
Purpose of the Study:
- To review the achievements of genetic studies in COPD to date.
- To discuss the challenges and limitations encountered in COPD genetic research.
- To highlight the potential impact of high-throughput technologies, like genome-wide association studies (GWAS), on understanding COPD genetics.
Main Methods:
- Review of existing epidemiological and family studies on COPD genetics.
- Analysis of candidate gene association studies.
- Discussion of genome-wide association studies (GWAS) and their application to complex diseases.
Main Results:
- Conflicting data and lack of replication in many candidate gene studies due to underpowering and limited scope.
- Emerging evidence from larger studies and extensive gene coverage implicating specific genetic variants in COPD.
- Genome-wide association studies (GWAS) show promise for identifying novel COPD susceptibility genes and modifiers.
Conclusions:
- Despite past challenges, genetic research has advanced our understanding of COPD.
- Genome-wide association studies (GWAS) represent a powerful, unbiased approach for future COPD genetic discovery.
- High-throughput technologies are expected to significantly enhance our comprehension of the genetic basis of COPD.
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