Fig. 2From: Whole-brain irradiation differentially modifies neurotransmitters levels and receptors in the hypothalamus and the prefrontal cortexNeurotransmitter levels in the prefrontal cortex 1 month after sham (white bars) or treatment with 11 Gy whole-brain irradiation (black bars). The analyzed region is indicated in a Paxinos and Watson diagram [21]. a The concentration (μMol/g of fresh tissue) of the following amino acids: Asp, Glu, Gln, Gly, Tau, and GABA. Glutamine/Glutamate and Glutamate/GABA ratios are showed in b, c, respectively. Data are expressed as means ± SEM. Groups were statistically compared using the Mann–Whitney U test *p ≤ 0.05Back to article page