Fig. 3.

Graphs showing the mean density of TH⁺ terminals in the striatum (A) and the total number of TH⁺ cells in the SNc of the midbrain (E) of the different experimental groups. Error bars indicate SEM. Photomicrographs of striatal TH⁺ terminals in the 3m (Fig. 1B), 12m (Fig. 1C), and 12m + PBM (Fig. 1D) groups and of SNc TH⁺ cells in the 3m (Fig. 1F), 12m (Fig. 1G), and 12m + PBM (Fig. 1H) groups. Schematic diagrams of the mouse forebrain (B′) and midbrain (taken H′) adapted from a mouse atlas (Paxinos and Franklin, 2001). The red arrows in each schematic indicate the approximate regions where the corresponding photomicrographs of striatum (B–D) and SNc (F–H) were taken from; the bold number on each schematic corresponds to the plate number in the atlas. Scale bar = 100 μm. Abbreviations: TH, tyrosine hydroxylase; SNc, substantia nigra pars compacta; SNr, substantia nigra pars reticulata; PBM, photobiomodulation; SEM, standard error mean. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)