Interleukin-6 impairs the insulin signaling pathway, promoting production of nitric oxide in human umbilical vein endothelial cells. - Andreozzi,F.; Laratta,E.; Procopio,C.; Hribal,ML.; Sciacqua,A.; Perticone,M.; Miele,C.; Perticone,F.; Sesti,G. (Mol Cell Biol, 2007)