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Dkk1 was elevated in the aqueous humor of primary open-angle glaucoma (POAG) eyes. Aqueous humor samples were collected from cataract and cataract + POAG patients during surgeries. Dkk1 levels were measured using enzyme-linked immunosorbent assay. Data are given as means ± SEM. N = 8 for the cataract group and N= 21 for the cataract+POAG group. ∗P < 0.05 (t-test).
