Cited by 158Retinal Diseases and TreatmentsRetinal Development and DisordersGenetic Associations and Epidemiology

Candidate gene analysis suggests a role for fatty acid biosynthesis and regulation of the complement system in the etiology of age-related maculopathy

Conley, Yvette P., Thalamuthu, Anbupalam, Jakobsdottir, Johanna, Weeks, Daniel E., Mah, Tammy, Ferrell, Robert E., Gorin, Michael B.·2005·Human Molecular Genetics

Abstract

Age-related maculopathy (ARM) is a leading cause of visual impairment in elderly Americans and is a complex genetic disorder. Hypothesized pathways for the etiology of ARM include cholesterol and lipoprotein metabolism and transport, extracellular matrix integrity, oxidative stress and inflammatory/immunologic processes. This study investigates 21 polymorphisms within 15 candidate genes whose products function within these pathways by performing family and case-control genetic association studies using clearly affected familial cases (n=338 families, 796 individuals), clearly affected, unrelated sporadic cases (n=196) and clearly unaffected, unrelated controls (n=120). Two genes demonstrated significant association with ARM status. A Met299Val variant in the elongation of very long chain fatty acids-like 4 (ELOVL4) gene was significantly associated with ARM in the case-control allele (P=0.001), case-control genotype (P=0.001) and case-control family (P<0.0001) tests. A Tyr402His variant in exon 9 in the complement factor H (CFH) gene was also significantly associated with ARM in the case-control allele (P<0.0001), case-control genotype (P<0.0001) and case-control family (P<0.0001) tests. All of these results remain significant after adjusting for false discovery rates to control for the impact of multiple testing. In addition, the CFH variant appears to play a role in exudative and atrophic disease, whereas the ELOVL4 variant may play a greater role in exudative disease in our population. These results support a potential role for multiple pathways in the etiology of ARM, including pathways involved with fatty acid biosynthesis and the complement system.

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Crossref · 10.1093/hmg/ddi204

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  • Several studies have found an association between advanced age-related macular degeneration and complement factor H.

    “More recently, several studies have found an association between advanced age-related macular degeneration and complement factor H, an integral component of the alternative pathway of complement activation.54–65”

    From Age-related macular degeneration (2008) · cites this paper as [58]

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Authors
Conley, Y. P., Thalamuthu, A., Jakobsdottir, J., Weeks, D. E., Mah, T., Ferrell, R. E., & Gorin, M. B.
Affiliations
University of Pittsburgh (US)
Corresponding author
Conley, Yvette P.
Venue
Human Molecular Genetics
Published
2005-06-01
Volume
14
Issue
14
Pages
1991-2002
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2105155318
Cited by
158
References
77
Citations by year
2026: 1 · 2025: 1 · 2024: 2 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 4 · 2018: 3 · 2016: 2 · 2015: 1 · 2014: 3 · 2013: 9 · 2012: 11
FWCI
22.93
Type
journal article
Language
en
Open access
closed
Locations
  • Human Molecular Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Eye Institute (R01EY009859)
  • Fogarty International Center (D43TW006180)
Topics
  • Health Sciences › Medicine › Ophthalmology › Retinal Diseases and Treatments
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Retinal Development and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
age-related maculopathy, genetic association, ELOVL4, complement factor H, fatty acid synthesis, complement system, neovascular age-related macular degeneration, atrophic macular degeneration, candidate genes, family-based association
MeSH terms
Aging, Alleles, Base Sequence, Complement System Proteins, Fatty Acids, Gene Frequency, Humans, Macular Degeneration, Phenotype, Polymorphism, Genetic, Case-Control Studies, DNA Primers

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