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Figure 1 | Molecular Pain

Figure 1

From: Neurotrophic factor changes in the rat thick skin following chronic constriction injury of the sciatic nerve

Figure 1

Distribution of proNGF immunoreactivity in naïve glabrous skin and following application of CCI. A) In sham operated controls, proNGF (brown precipitate) was found in the upper dermis, particularly in wall of blood vessels, and in small patches of keratinocytes (arrowhead). B) 1 week post-injury, proNGF immunolabeling was detected in mast cells (arrows; identified based on toluidine blue metachromatic counterstaining), in blood vessels in the upper dermis as well as in keratinocytes. C) At 2 weeks post-injury, note the intense immunostaining of keratinocytes, the labeling of some unidentified structures in dermis and a lower number of immunostained mast cells. D) At 4 weeks post-injury, note mast cell immunolabeling. E) Preincubation of antibody with control peptide abolished all specific staining. F) proNGF quantification was done by Western Blot analysis (n = 6) from sham, and animals 1 - 4 week post-injury. OD was normalized against β-actin loading controls. ***p < 0.001, **p < 0.01, *p < 0.05; +SEM.

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