FIG. 3.

Immunoblot analyses of retinal hypoxia-inducible factor 1-alpha (HIF-1α) protein expression at various times (4 or 24 h and 1, 4, or 8 weeks) after single deferroxamine (DFX) preconditioning (SDP, hatched bars) or repetitive DFX preconditioning (RDP, cross-hatched bars), relative to controls (C, gray bar). Responses were normalized to HIF-1α protein levels in nonpreconditioned controls collected concurrently and run simultaneously. *P < 0.05 versus control. n = 6–9 mice for experimental samples, n = 11 for controls.