Figure 2.
The frequency of regulatory T-cells and MDSC in peripheral blood before and after liver resection. (a) The frequency of regulatory T-cells was 2.26 (0.67–6.93)% before liver resection, 1.95 (0.28–4.16)% at one week after liver resection and 2.64 (1.49–4.59)% at one month after liver resection (p = 0.165). The frequency of MDSC was not significantly changed before or after liver resection, either. The median (IQ) frequency of MDSC was 2.40 (0.96–5.65) % before liver resection, compared to 1.93 (0.59–5.54)% at one week after liver resection and 1.44 (0.70–3.50)% at one month after liver resection (p = 0.549). (b) Among 19 patients, 10 patients had MDSC >2% before liver resection. For these 10 patients, the frequency of MDSC was 7.75 ± 8.16% before operation, and decreased to 5.27 ± 6.37% at POW 1 and further to 1.51 ± 1.32% at POM 1 (p = 0.022).