Progesterone treatment decreases traumatic brain injury induced anxiety and is correlated with increased serum IGF-1 levels; prefrontal cortex, amygdala, hippocampus neuron density; and reduced serum corticosterone levels in immature rats. - Baykara, B; Aksu, I; Buyuk, E; Kiray, M; Sisman, AR; Dayi, A; Tas, A; Ozdemir, D; Arda, MN; Uysal, N (Biotechnic & Histochemistry, 2013)