- Inhibitory effects of streptozotocin, tumor necrosis factor-alpha, and interleukin-1beta on glucokinase activity in pancreatic islets and gene expression of GLUT2 and glucokinase. Park, C., Kim, J.R., Shim, J.K., Kang, B.S., Park, Y.G., Nam, K.S., Lee, Y.C., Kim, C.H. Arch. Biochem. Biophys. (1999)