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Preoperative Aqueous Cytokine Levels Are Associated With a Rapid Reduction in Endothelial Cells After Penetrating Keratoplasty.
American Journal of Ophthalmology 2017 September
PURPOSE: To evaluate the influence of preoperative inflammatory cytokine levels in the aqueous humor (AqH) on the endothelial cell density (ECD) after penetrating keratoplasty (PKP).
DESIGN: Prospective, interventional, consecutive case series.
METHODS: This study includes 70 consecutive patients (mean age 73.7 ± 10.6 years) who underwent PKP (37 eyes) or cataract surgery (controls, 33 eyes). A total of 70 AqH samples were collected at the beginning of each surgery. The levels of cytokines (interleukin [IL]-1α, IL-1β, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, IL-17A, interferon [IFN]-α, IFN-γ, monocyte chemotactic protein [MCP]-1, E-selectin and P-selectin) in AqH were measured by multiplex bead immunoassay. The subjects who underwent PKP were classified into 2 groups: ECD ≥ 1200 cells/mm(2) at 6 months (24 eyes), and ECD < 1200 cells/mm(2) at 6 months (13 eyes).
RESULTS: The ECD at 3 months significantly correlated with the preoperative levels of IL-10 (r = -0.428, P = .02) and IFN-γ (r = -0.412, P = .029). The ECD at 6 months significantly correlated with the preoperative levels of IL-10 (r = -0.399, P = .024), MCP-1 (r = -0.444, P = .011), and IFN-γ (r = -0.474, P = .006). The preoperative levels of IL-6, IL-10, MCP-1, IFN-γ, and P-selectin in AqH were significantly higher in eyes with ECD < 1200 cells/mm(2) compared with those with ECD ≥ 1200 cells/mm(2) at 6 months (P < .05).
CONCLUSIONS: Higher preoperative levels of IL-10, MCP-1, and IFN-γ in the AqH were associated with low ECD after PKP.
DESIGN: Prospective, interventional, consecutive case series.
METHODS: This study includes 70 consecutive patients (mean age 73.7 ± 10.6 years) who underwent PKP (37 eyes) or cataract surgery (controls, 33 eyes). A total of 70 AqH samples were collected at the beginning of each surgery. The levels of cytokines (interleukin [IL]-1α, IL-1β, IL-4, IL-6, IL-8, IL-10, IL-12p70, IL-13, IL-17A, interferon [IFN]-α, IFN-γ, monocyte chemotactic protein [MCP]-1, E-selectin and P-selectin) in AqH were measured by multiplex bead immunoassay. The subjects who underwent PKP were classified into 2 groups: ECD ≥ 1200 cells/mm(2) at 6 months (24 eyes), and ECD < 1200 cells/mm(2) at 6 months (13 eyes).
RESULTS: The ECD at 3 months significantly correlated with the preoperative levels of IL-10 (r = -0.428, P = .02) and IFN-γ (r = -0.412, P = .029). The ECD at 6 months significantly correlated with the preoperative levels of IL-10 (r = -0.399, P = .024), MCP-1 (r = -0.444, P = .011), and IFN-γ (r = -0.474, P = .006). The preoperative levels of IL-6, IL-10, MCP-1, IFN-γ, and P-selectin in AqH were significantly higher in eyes with ECD < 1200 cells/mm(2) compared with those with ECD ≥ 1200 cells/mm(2) at 6 months (P < .05).
CONCLUSIONS: Higher preoperative levels of IL-10, MCP-1, and IFN-γ in the AqH were associated with low ECD after PKP.
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