Fig. 2From: Effect of water-immersion restraint stress on tryptophan catabolism through the kynurenine pathway in rat tissues Tryptophan 2,3-dioxygenase (TDO) and indoleamine 2,3-dioxygenase (IDO) activities in the liver, brain, and kidney tissues of rats subjected (+) or not (−) to 6 h of WIRS based on assays of TDO and IDO described in the Materials and methods. Each value is the mean ± SD (n = 7 −WIRS rats; n = 8 +WIRS rats). *P < 0.05 (vs. −WIRS rats)Back to article page