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. 2019 Apr 10;10:100164. doi: 10.1016/j.ynstr.2019.100164

Fig. 7.

Fig. 7

Electron micrographs showing immunoperoxidase labeling for dopamine β-hydroxylase (DβH) in axon terminals and immunogold-silver labeling for monoacylglycerol lipase-α (MGL) in the prefrontal cortex. A. Immunoperoxidase labeling can be seen in a DβH-immunoreactive axon terminal (DβH-t) contacting (arrowheads) an unlabeled axon terminal. Also shown is an MGL-labeled terminal (MGL-t) that forms an asymmetric synapse (zigzag arrows) with an unlabeled dendrite (ud). B-F. Dense immunoperoxidase labeling can be seen in DβH-t that also contains MGL (DβH + MGL-t). DβH + MGL-t forms symmetric (arrowheads; Panels D and F), asymmetric (zigzag arrows; Panel C) or undefined (Panels B and E) synapse with ud. Arrows point to immunogold-silver labeling for MGL. ut: unlabeled terminal; Scale bars: 0.50 μm.