B) Intravitreal injection of LIF increases blood vessel density in the mouse eyes. Adult mice were intravitreally injected with VEGF (10 ng) or LIF (10 ng to 100 ng, Sigma). m.Vascular density, determined with ImageJ software, is shown in B), n=5-8. Data information: Bars and error bars represent mean ± SEM. All experiments were carried out in three independent studies. Two-way ANOVA was used as statistical test. 