Vascular endothelial growth factor is induced by long-term high glucose concentration and up regulated by acute glucose deprivation in cultured bovine retinal pigmented epithelial cells - Sone, H; Kawakami, Y; Okuda, Y; Kondo, S; Hanatani, M; Suzuki, H; Yamashita, K (Biochem Biophys Res Commun, 1996)