Document Detail


Analysis of Hemicentin-1, hOgg1, and E-selectin single nucleotide polymorphisms in age-related macular degeneration.
MedLine Citation:
PMID:  17057786     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: Age-related macular degeneration (AMD) is a common disease in which both environmental and genetic factors have been implicated. Various single nucleotide polymorphisms (SNPs) have been correlated, through candidate gene association studies, with age-related diseases, including AMD. Recently we identified an association between AMD and two SNPs in CX3CR1, which encodes a chemokine receptor. This study investigates the Hemicentin-1 (an extracellular matrix protein) Q5345R, hOgg1 (DNA repair gene) S326C, and E-selectin (an adhesion molecule) S149R SNPs in association with AMD.
METHODS: Genomic DNA was extracted from peripheral blood of 89 patients with advanced AMD, 97 age-matched controls without clinical AMD, and 170 random unscreened healthy volunteers. DNA was subjected to polymerase chain reaction amplification coupled with the restriction fragment length polymorphism assay.
RESULTS: The distribution of the Hemicentin-1 Q5345R, hOgg1 S326C, and E-selectin S149R SNPs did not differ significantly (all P values > .05) between the AMD patients and controls. Hemincentin-1 5345R was not found in any subject. hOgg1 326C allele frequency was 21.35% (38 of 178) in the AMD group compared with 19.12% (65 of 340) in the random controls and 19.59% (38 of 194) in the age-matched controls. E-selectin 149R allele frequencies were 8.99% (16 of 178) in AMD cases, 9.41% (32 of 340) in random controls, and 10.82% (21 of 194) in age-matched controls.
CONCLUSIONS: We were not able to demonstrate an association between the Hemicentin-1, hOgg1, and E-selectin SNPs and AMD development in the currently available cases and controls. Further candidate genes, particularly those involved in extracellular matrix, oxidative stress, and immune system functions, are currently being screened in our laboratory.
Authors:
Christine M Bojanowski; Jingsheng Tuo; Emily Y Chew; Karl G Csaky; Chi-Chao Chan
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Intramural    
Journal Detail:
Title:  Transactions of the American Ophthalmological Society     Volume:  103     ISSN:  1545-6110     ISO Abbreviation:  Trans Am Ophthalmol Soc     Publication Date:  2005  
Date Detail:
Created Date:  2006-10-23     Completed Date:  2006-12-26     Revised Date:  2012-03-07    
Medline Journal Info:
Nlm Unique ID:  7506106     Medline TA:  Trans Am Ophthalmol Soc     Country:  United States    
Other Details:
Languages:  eng     Pagination:  37-44; discussion 44-5     Citation Subset:  IM    
Affiliation:
National Eye Institute, National Institutes of Health, Bethesda, Maryland, USA.
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Aged, 80 and over
DNA Glycosylases / genetics*
E-Selectin / genetics*
Extracellular Matrix Proteins / genetics*
Female
Gene Frequency
Humans
Immunoglobulins
Macular Degeneration / genetics*
Male
Middle Aged
Polymerase Chain Reaction
Polymorphism, Restriction Fragment Length
Polymorphism, Single Nucleotide*
Grant Support
ID/Acronym/Agency:
Z99 EY999999/EY/NEI NIH HHS
Chemical
Reg. No./Substance:
0/E-Selectin; 0/Extracellular Matrix Proteins; 0/HMCN1 protein, human; 0/Immunoglobulins; EC 3.2.2.-/DNA Glycosylases; EC 3.2.2.-/oxoguanine glycosylase 1, human
Comments/Corrections

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