
Keywords: MMP2; matrix metalloproteinase-2; TG; transgenic; STZ; streptozotocin; DOX; doxycycline; NF; normal food; FCS; fetal calf serum; HUVECs; human umbilical vein endothelial cells; NHMCs; normal human mesangial cells; EDTA; ethylenediaminetetraacetic acid; WT