Research Article

Effect of Electroacupuncture Intervention on Expression of CGRP, SP, COX-1, and PGE2 of Dorsal Portion of the Cervical Spinal Cord in Rats with Neck-Incision Pain

Figure 2

Effect of EA stimulation of different acupoints on the immunoactivity of SP and CGRP in the rat’s cervical spinal cord 4 h after neck incision ( in each group). (a) Representative confocal microscopic photos of immunofluorescence double staining showing SP and CGRP immunoreaction (IR) positive products (green for SP and red for CGRP) in the cervical spinal cord in the 5 groups. (b) and (c) Histograms showing the mean fluorescence intensity of SP-IR positive products (b) and CGRP-IR positive products (c) in the 5 groups. Data are expressed as the mean ± SD (ANOVA, followed by LSD post hoc test); , compared with the normal control group; , compared with the model group.
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