Intravitreal Administration of Tissue Inhibitor of Matrix Metalloproteinase-3 Attenuates Diabetes-Induced Breakdown of Blood-Retinal Barrier and Retinal Expression of the p65 Subunit of NF-κB, Intercellular Adhesion Molecule-1, and Vascular Endothelial Growth Factor. The gene discussed is MMP3; the disease is diabetes mellitus.