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Miki Sawa, Fumi Gomi, Chikako Hara, Kohji Nishida; Effects of a Lutein Supplement on the Plasma Lutein Concentration and Macular Pigment in Patients With Central Serous Chorioretinopathy. Invest. Ophthalmol. Vis. Sci. 2014;55(8):5238-5244. doi: 10.1167/iovs.14-14470.
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To investigate the effects of lutein supplementation on plasma lutein concentrations and the macular pigment optical density (MPOD) in central serous chorioretinopathy (CSC).
In this double-masked placebo-controlled study, 20 patients received lutein 20 mg/d and 19 received placebo. The plasma lutein concentration and MPOD using autofluorescence spectrometry (density unit, DU) were measured at baseline and 1 and 4 months.
The mean plasma lutein concentrations and MPOD values in the lutein and control groups, respectively, were 91.5 and 78.2 ng/mL and 0.444 and 0.437 DU at baseline; 204.9 and 79.3 ng/mL and 0.460 and 0.442 DU at 1 month; and 228.0 and 78.4 ng/mL and 0.441 and 0.421 DU at 4 months. The plasma concentration in the lutein group was significantly higher than in controls at 1 and 4 months (P < 0.0001 for both comparisons); however, the MPOD values did not differ significantly between groups at 1 (P = 0.479) or 4 months (P = 0.883). In patients with a plasma lutein concentration below the mean level in 20 age-matched healthy subjects (mean 105.3 ng/mL; n = 13 in lutein group, n = 15 in control group), the control MPOD values significantly (P = 0.0430) decreased at 4 months (mean baseline, 0.437 DU; 4 months, 0.404 DU). The MPOD in the lutein group remained at the baseline level (mean baseline, 0.426 DU; 4 months, 0.438 DU) (P = 0.6542).
The MPOD did not increase in patients with CSC with short-term lutein supplementation; however, among patients with low plasma lutein, supplemental lutein prevented a decline in MPOD that was observed in control subjects (www.umin.ac.jp/ctr number, UMIN000005849).
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