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. 2019 Oct 4;13:1049. doi: 10.3389/fnins.2019.01049

FIGURE 6.

FIGURE 6

Confocal microscopic images show double-fluorescent labeling of adenosine A2a receptors and enkephalin in the rVLM of a rat. (A) Low-power photomicrograph (1.44 mm rostral to the obex). (B) Magnified region displayed within the box in (A). (B) Is a merged image from (C,D). Arrows in (B–D) indicate a neuron co-labeled with adenosine A2a receptors and enkephalin (yellow), adenosine A2a receptors (green) and enkephalin (red), respectively. Scale bars in (A,B–D) represent 200 and 50 μm, correspondingly.