PF-4var/CXCL4L1 has no effect on the generation of reactive oxygen species in diabetic rat retinas. Freshly prepared rat retinal homogenates were incubated with 2′-7′-dichlorofluorescein-diacetate, and 2′-7′-dichlorofluorescein (DCF) fluorescence intensity was quantitated. N, normal; D+ PBS, PBS-injected diabetic eye; D+ PF-4var/CXCL4L1, PF-4var/CXCL4L1 injected diabetic eye. Each group comprised seven or eight animals, and values represent mean ± SD. *P < 0.05 compared to normal.