Genetic variants of complement factor H gene are not associated with premature coronary heart disease: a family-based

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Weihua Meng1, Anne Hughes, Chris C Patterson

  • 1Centre for Clinical and Population Sciences, Queen's University Belfast, Institute of Clinical Science, Grosvenor Road, Belfast, BT12 6BJ, Northern Ireland, UK. wmeng01@qub.ac.uk

BMC Medical Genetics
|September 20, 2007
PubMed

Insights

This study found no link between the complement factor H (CFH) gene and early-onset coronary heart disease risk in Irish families. Genetic variants of CFH were not associated with this cardiovascular condition.

Area of Science:

  • Genetics
  • Cardiovascular Disease
  • Molecular Biology

Background:

  • The complement factor H (CFH) gene is crucial in age-related macular degeneration.
  • Conflicting evidence exists regarding CFH's role in coronary heart disease (CHD).
  • Early-onset CHD necessitates investigation into genetic risk factors.

Purpose of the Study:

  • To investigate the association between CFH gene variants and early-onset coronary heart disease risk.
  • Utilizing a family-based approach to assess genetic associations.
  • Examining single nucleotide polymorphisms (SNPs) and haplotypes within the CFH gene.

Main Methods:

  • Evaluated 6 SNPs and 5 common haplotypes in the CFH gene.
  • Studied 1494 individuals from 580 Irish families with premature coronary heart disease.
  • Employed multiplex SNaPshot technology for genotype determination and Transmission Disequilibrium Test (TDT/S-TDT) for association analysis.

Main Results:

  • No significant association was found between individual CFH SNPs and early-onset coronary heart disease.
  • No significant association was detected between the 5 common CFH haplotypes and early-onset coronary heart disease.
  • The TDT/S-TDT test did not reveal any genetic link.

Conclusions:

  • This family-based study found no association between the CFH gene and early-onset coronary heart disease.
  • The investigated genetic variants of CFH do not appear to confer risk for early-onset CHD in this population.
  • Further research may be needed to explore other genetic or environmental factors.
Abstract

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