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PREG levels in the prefrontal cortex, hippocampus, and cerebellum as a function of stress in mTBI and SHAM rats. The legend is same as Figure 3. In prefrontal cortex, PREG levels of S34 rats were greater than those of CON rats. In the hippocampus, PREG levels of S34 rats were greater than CON rats and 2S rats. Also, PREG levels of S35 rats were greater than 2S rats. Asterisks indicate ps < 0.05.
