Journal article

Urinary isoprostane levels and age-related macular degeneration

C Sabanayagam, WK Lye, A Januszewski, RBBM Abdul, GCM Cheung, N Kumari, TY Wong, CY Cheng, E Lamoureux

Investigative Ophthalmology and Visual Science | ASSOC RESEARCH VISION OPHTHALMOLOGY INC | Published : 2017

Abstract

PURPOSE. Oxidative stress, characterized by an excessive production of reactive oxygen intermediates has been suggested to play a role in the pathogenesis of age-related macular degeneration (AMD). We examined the association of urinary F2-isoprostanes (F2-IsoPs), a marker of lipid peroxidation and the most reliable marker of oxidative damage with AMD. METHODS. We included 238 adults with AMD and 390 age-and sex-matched controls without AMD who participated in a population-based cross-sectional study in Singapore (Singapore Chinese Eye Study, 2009-2011). AMD was graded from retinal photographs using the Wisconsin Age-Related Maculopathy Grading System. Urinary-free F2-IsoPs (pmol/mmol of cre..

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