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Micrographs showing co-localization of NR1 and IL-1RI in lumbar spinal dorsal horn neurons. Sections were double-labeled with anti-NR1 (green) and anti-IL-1RI (red). a: NR1-immunoreactive neurons in laminae I-II; b: IL-1RI-immunoreactive neurons in laminae I–II; c: Merged graphs of a and b. Arrow indicates double-labeled NR1/IL-1RI neuron (yellow); Scale bars represent 40 μm.
