Resveratrol suppresses the increase of extracellular Glu levels induced by stretch injuries by enhancing the Glu transport, thus increasing Glu uptake, glutathione content, glutamine synthetase activity, and S 100B (a neurotrophic cytokine) secretion in cortical astrocyte cultures and C6 glioma cells [62]. This evidence concerns the gene GLUL and central nervous system cancer.