作者: Gareth J. McKay , Ian S. Young , Ann McGinty , Graham C.G. Bentham , Usha Chakravarthy
DOI: 10.1016/J.OPHTHA.2016.09.007
关键词:
摘要: Purpose To study associations between early and late age-related macular degeneration (AMD) neovascular AMD (nvAMD) with serum 25-hydroxy vitamin D (25(OH)D) genetic variants in pathway genes. Design Population-based, cross-sectional a random sample aged 65 years or older from 7 European countries. Participants Of 4753 participants, 4496 (2028 men 2468 women), mean age of 73 years, provided blood sample; 2137 had no signs AMD, 2209 150 whom 104 nvAMD. Methods were interviewed to determine smoking alcohol use, sunlight exposure, diet; underwent fundus photography. Fundus images graded using the International Classification System for Age-Related Maculopathy. The 25(OH)D was measured by liquid chromatography–tandem mass spectrometry categorized as deficient ( Main Outcome Measures Adjusted odds ratio (OR) 3 outcomes (early nvAMD). Results No linear association found There insufficient status AMD. Deficient associated nvAMD (adjusted OR, 1.27; 95% confidence interval, 1.1–1.45; P GC , VDR CYP2R1 CYP27B1 . Two SNPs ) 4 RXRA 1 SNP nvAMD, ), 2 After Bonferroni correction, Conclusions Deficiency but adjusted OR small, we cannot exclude residual confounding. hypothesis causal is not supported clear evidence an