Ion of thecoronal section is indicated in every single image, relative to the Bregma. Scale bar 100 lm for all imagesFig. 2 Confocal laser scanning pictures (a ) show 100 colocalization in between the labeling of 5-HT and its synthesizing enzyme, TPH, in representative MR neurons (asterisk). Scale bar 50 lm for all imagescells were only NeuN optimistic, which had been marked with filled circle i