Figure 3

Glutamate and NO levels (A-B) in retina of sham, BH, and BL rats. (A) NO concentration is significantly increased in the retina at 24 h, 72 h, and 2 weeks after BH and BL exposure when compared with that of the sham rats; NO concentration is significantly increased in the retina at 72 h and 2 weeks after BH exposure when compared with that of 24 h after BH exposure; NO concentration is significantly increased in the retina at 2 weeks after BL exposure when compared with that of 24 h after BL exposure; NO concentration is significantly increased in the retina at 72 h and 2 weeks when compared with that of 72 h and 2 weeks after BL exposure, respectively. (B) Glutamate concentration is significantly increased in the retina at 24 h and 72 h after BH and BL exposure when compared with that of the sham rats with recovery at 2 weeks after BH and BL exposure; glutamate concentration is significantly increased in the retina at 72 h after BH and BL exposure when compared with that of 24 h and 2 weeks, respectively, after BH and BL exposure. (mean±SD) (* P <0.05; **P <0.01).