4.6 Article

Age-related Macular Degeneration and Complement Activation-related Diseases A Population-Based Case-Control Study

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OPHTHALMOLOGY
卷 115, 期 11, 页码 1904-1910

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ELSEVIER SCIENCE INC
DOI: 10.1016/j.ophtha.2008.06.035

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  1. Medical Research Council Funding Source: Medline
  2. Wellcome Trust [082178] Funding Source: Medline

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Objective: Recent evidence suggests an important role for the complement system in the etiology of age-related macular degeneration (AMD). We aimed to investigate whether other diseases known to be associated with complement activation are associated with AMD. Design: Case-control study. Participants: We reviewed medical records from the United Kingdom General Practice Research Database (GPRD). Cases (n = 18 007) were defined as people aged >= 50 years with a first diagnosis of AMD while registered with a practice included in the GPRD between 1987 and 2002. For each case, 5 controls with no record of AMD (n = 86 169) were matched by gender, practice, and age (within 5 years). Methods: Records were searched for diagnoses of systemic lupus erythematosus (SLE), glomerulonephritis, and diabetic nephropathy occurring before the AMD diagnosis date (or equivalent date for controls). Main Outcome Measures: Diagnosis of AMD. Results: A diagnosis of SLE was found in 0.07% of controls and 0.13% of AMD cases (confounder-adjusted odds ratio [OR], 1.69; 95% confidence interval [CI], 1.05-2.72). Glomerulonephritis was diagnosed in 0.13% of controls and 0.2% of cases (adjusted OR 1.46; 95% Cl, 0.99-2.13). Diabetic nephropathy was strongly associated with AMD with an adjusted OR of 3.00 and a 95% Cl of 1.55-5.97, which was independent of the association of diabetes with AMD. Conclusions: Specific diseases that are associated with complement activation are also associated with AMD. The impact of diabetic nephropathy on AMD may be larger than previously recognized. Financial Disclosure(s): The authors have no proprietary or commercial interest in any materials discussed in this article. Ophthalmology 2008;115:1904-1910 (C) 2008 by the American Academy of Ophthalmology.

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