Abstract
Regulator of G-protein signaling protein (RGS)-2 is a modulator of anxiety and dysregulation of oxidative stress is implicated in anxiety. Also, RGS2 expression is reported to be induced by oxidative stress. Thus, if oxidative stress induces RGS2 expression and lack of RGS2 causes anxiety, then mechanisms that link RGS2 and oxidative stress potentially critical to anxiety must be revealed. Our study is the first to suggest role of RGS2 in regulation of enzymes involved in antioxidant defense namely glyoxalase-1 and glutathione reductase-1 via activation of p38 MAPK and PKC pathways in an Sp-1 dependent manner.
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