Figure 4

Cell count of CD8 ⁺ T cells between the two groups. On POD 1, in both two groups, the count of CD8⁺T cells significantly descended (P < 0.05), while there was no difference between the two groups (P > 0.05). While on POD 4, the count of CD8⁺T cells was significantly higher in LCR group than OCR group (P < 0.05). On POD 7, the count of CD8⁺T cells rose to the preoperative level in LCR group, while in OCR group, the count of CD8⁺T cells was still significantly depressed compared with the preoperative level (P < 0.05).