Joint Associations of Diet, Lifestyle, and Genes with Age-Related Macular Degeneration.
Joint Associations of Diet, Lifestyle, and Genes with Age-Related Macular Degeneration.
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DOI:
10.1016/j.ophtha.2015.07.029
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发表时间:
2015-11
期刊:
影响因子:
13.7
通讯作者:
Mares JA
中科院分区:
文献类型:
--
作者:
Meyers KJ;Liu Z;Millen AE;Iyengar SK;Blodi BA;Johnson E;Snodderly DM;Klein ML;Gehrs KM;Tinker L;Sarto GE;Robinson J;Wallace RB;Mares JA
Healthy diets and lifestyles are thought to protect against age-related macular degeneration (AMD), but whether the benefits vary across high risk AMD genotypes is unknown. The objective is to investigate the joint effects of healthy diet and lifestyle with genetic risk on the odds for AMD. Healthy lifestyles scores and their interactions with AMD risk genotypes were studied in relation to the prevalence of AMD, assessed six years later. Women 50–79 years of age in the Carotenoids in Age-Related Eye Disease Study (CAREDS) with exposure and AMD data available (N=1,663). Healthy lifestyle scores (0–6 points) were assigned based on Healthy Eating Index scores, physical activity (MetHrs/week), and pack years of smoking assessed between 1994–1998. Genetic risk was based on Y402H in complement factor H (CFH) and A69S in age-related maculopathy susceptibility locus 2 (ARMS2). Interactions between healthy lifestyle score and genotype in relation to the odds of AMD were assessed. Stereoscopic fundus photographs were taken and graded for AMD six years after exposure assessment (2001–2004). A total of 308 women had early AMD and 29 had late AMD). The odds of AMD were 3.3 times greater in women with both low healthy lifestyle score (0–2) and high risk CFH genotype (CC), relative to those who had low genetic risk (TT) and healthy lifestyle scores of 4–6 (95% CI:1.8–6.1). There were no significant additive (SI=1.08, 95% CI: 0.70–1.67) or multiplicative (Pinteraction=0.94) interactions in the full sample. Limiting the sample to those with stable diets prior to AMD assessment (n=728) strengthened the joint effects (OR=4.6, 95% CI: 1.85–11.6) and suggested high risk genotype and low lifestyle score combined had a stronger association than expected by simply adding the two effects (SI=1.34, 95% CI: 1.05–1.70). Adjusting for dietary lutein and zeaxanthin attenuated, and therefore partially explained the joint association. There was no significant evidence of additive or multiplicative interactions for ARMS2 and lifestyle score. These results, in a sample in which the majority of AMD cases were early, suggest the effects of high risk Y402H genotype and poor diets and lifestyles combine in at least an additive manner to influence odds for AMD, but may combine to be more than the sum of their individual effects.