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. 2016 Aug 2;4:e2301. doi: 10.7717/peerj.2301

Figure 1. Acute exacerbations of COPD are accompanied by elevation of circulating CD8+ T cells.

Figure 1

(A) Strategies for gating CD8+ T cells: PBMCs were gated into R1 and R2 gates to exclude monocytes, platelets and debris; CD8+ T cells were then identified based on CD3 and CD8 expression. Representative flow cytometric dot plots are shown. (B) Comparisons of the percentages of CD8+ T cells from HN , SCOPD patients and AECOPD patients (n = 14, 24, and 14, respectively) are shown. Horizontal bars indicate the mean values.