PURPOSE: Increased dietary intake of lutein/zeaxanthin and omega-long-chain polyunsaturated fatty acids (omega-3 LCPUFA) was found to be associated with reduced risk of advanced age-related macular degeneration (AMD). The purpose of the study was to examine the effect of oral supplementation of omega-3 LCPUFA on changes in serum levels of lutein/zeaxanthin during supplementation in persons 60 years of age and older, with or without AMD. METHODS:Forty participants with AMD of various degrees of severity receivedlutein (10 mg) and zeaxanthin (2 mg) daily and were equally randomized to receive omega-3 LCPUFA (350 mg docosahexaenoic acid [DHA] and 650 mg eicosapentaenoic acid [EPA]) or placebo for 6 months. Serum levels of lutein, zeaxanthin, and omega-3 LCPUFAs and macular pigment optical densities were measured at baseline, 1 week, and 1, 3, 6, and 9 months. RESULTS: By month 6, the median serum levels of lutein/zeaxanthin increased by two- to threefold compared with baseline. Increases in serum levels of lutein/zeaxanthin did not differ by omega-3 LCPUFA treatment (P > 0.5). After 1 month, in the omega-3 LCPUFA-treated group, the median levels of DHA and EPA increased and the placebo group had no changes. At month 6, participants with AMD had a lower increase in serum lutein concentration than did those without AMD (P < 0.05). CONCLUSIONS: The addition of omega-3 LCPUFA to oral supplementation of lutein/zeaxanthin did not change the serum levels of lutein and zeaxanthin. A long-term large clinical trial is necessary to investigate the benefits and adverse effects of these factors for the treatment of AMD.
RCT Entities:
PURPOSE: Increased dietary intake of lutein/zeaxanthin and omega-long-chain polyunsaturated fatty acids (omega-3 LCPUFA) was found to be associated with reduced risk of advanced age-related macular degeneration (AMD). The purpose of the study was to examine the effect of oral supplementation of omega-3 LCPUFA on changes in serum levels of lutein/zeaxanthin during supplementation in persons 60 years of age and older, with or without AMD. METHODS: Forty participants with AMD of various degrees of severity received lutein (10 mg) and zeaxanthin (2 mg) daily and were equally randomized to receive omega-3 LCPUFA (350 mg docosahexaenoic acid [DHA] and 650 mg eicosapentaenoic acid [EPA]) or placebo for 6 months. Serum levels of lutein, zeaxanthin, and omega-3 LCPUFAs and macular pigment optical densities were measured at baseline, 1 week, and 1, 3, 6, and 9 months. RESULTS: By month 6, the median serum levels of lutein/zeaxanthin increased by two- to threefold compared with baseline. Increases in serum levels of lutein/zeaxanthin did not differ by omega-3 LCPUFA treatment (P > 0.5). After 1 month, in the omega-3 LCPUFA-treated group, the median levels of DHA and EPA increased and the placebo group had no changes. At month 6, participants with AMD had a lower increase in serum lutein concentration than did those without AMD (P < 0.05). CONCLUSIONS: The addition of omega-3 LCPUFA to oral supplementation of lutein/zeaxanthin did not change the serum levels of lutein and zeaxanthin. A long-term large clinical trial is necessary to investigate the benefits and adverse effects of these factors for the treatment of AMD.
Authors: Hema L Ramkumar; Jingsheng Tuo; De F Shen; Jun Zhang; Xiaoguang Cao; Emily Y Chew; Chi-Chao Chan Journal: J Nutr Date: 2013-05-15 Impact factor: 4.798
Authors: Jin Yang; Yao Li; Lawrence Chan; Yi-Ting Tsai; Wen-Hsuan Wu; Huy V Nguyen; Chun-Wei Hsu; Xiaorong Li; Lewis M Brown; Dieter Egli; Janet R Sparrow; Stephen H Tsang Journal: Hum Mol Genet Date: 2014-02-04 Impact factor: 6.150
Authors: Asmaa S Abdelhamid; Tracey J Brown; Julii S Brainard; Priti Biswas; Gabrielle C Thorpe; Helen J Moore; Katherine Ho Deane; Fai K AlAbdulghafoor; Carolyn D Summerbell; Helen V Worthington; Fujian Song; Lee Hooper Journal: Cochrane Database Syst Rev Date: 2018-11-30
Authors: Asmaa S Abdelhamid; Tracey J Brown; Julii S Brainard; Priti Biswas; Gabrielle C Thorpe; Helen J Moore; Katherine Ho Deane; Fai K AlAbdulghafoor; Carolyn D Summerbell; Helen V Worthington; Fujian Song; Lee Hooper Journal: Cochrane Database Syst Rev Date: 2018-07-18