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Shin-ichi Sasaki, Dai Miyazaki, Ken-ichiro Miyake, Yuki Terasaka, Shuzo Kaneda, Yoshifumi Ikeda, Taisaku Funakoshi, Takashi Baba, Atsushi Yamasaki, Yoshitsugu Inoue; Associations of IL-23 with Polypoidal Choroidal Vasculopathy. Invest. Ophthalmol. Vis. Sci. 2012;53(7):3424-3430. doi: 10.1167/iovs.11-7913.
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determine the relationship between the levels of intraocular inflammatory cytokines and polypoidal choroidal vasculopathy (PCV).
Prospective cohort study. Sixty-two patients with PCV and 36 control subjects were studied. The levels of cytokines, chemokines, and growth factors in the aqueous humor samples from PCV patients and control subjects were assessed for significant associations with PCV. Logistic regression analysis was used to compute the odds ratios (ORs) and 95% confidence intervals (CIs) after the study populations were divided into quartiles.
In PCV patients, IL-4, IL-10, and IL-23 were significantly higher than in the controls. Logistic analyses showed a significantly high risk for IL-23 (OR for the highest quartile compared with the lowest quartile: 16.3; 95% CI: 3.5–75.2), VEGF (5.7; 1.2–26.1), and IL-4 (4.0; 1.3–12.7). IL-10 and IL-4, but not IL-23, were significantly correlated with the VEGF levels in PCV patients (IL-10: ρ = 0.477, IL-4: ρ = 0.281). The elevated levels of IL-5, IL-10, IL-4, IL-23, and IL-1α were found to be significantly associated with exudative lesion(s) in the fluorescein angiograms.
The significant associations between elevated levels of IL-23 with PCV and its activity strongly suggest an involvement of inflammatory processes in the etiology of PCV, presumably independent of VEGF. (www.umin.ac.jp/ctr number, UMIN000003854.)
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