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. 2014 Mar 13;9(3):e91426. doi: 10.1371/journal.pone.0091426

Figure 6. Effects of EA at acupoints on the expression of iNOS, S100B/nitrotyrosine, and TUNEL in the ischemic cortical penumbra.

Figure 6

Representative photographs show (A) iNOS-, (B) S100B/nitrotyrosine-, and (C) TUNEL-immunoreactive cells in the ischemic cortical penumbra in the Sham-7 d, Model-7 d, EA-7 d, and Non-acup-7 d groups 7 d after reperfusion. N, negative control. The black arrows in (A), (B), and (C) indicate iNOS (brown)-, S100B/nitrotyrosine (deep purple)-, and TUNEL (brown)-immunoreactive cells, respectively. The bottom-right panel shows a S100B/nitrotyrosine double-labeled cell at a higher magnification, indicated by a black arrow. Scale bar = 50 µm.