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Updated: Jun 8, 2026
A Recovery Cardiopulmonary Bypass Model Without Transfusion or Inotropic Agents in Rats
Published on: March 23, 2018
[A proteomic study of peripheral blood mononuclear cells in patients undergoing cardiopulmonary bypass]
Yan-Qin Yang1, Jin Tang, Miao-Ning Gu
1Department of Anesthesiology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
Objective:
To explore the effect of cardiopulmonary bypass (CPB) on the profile of protein expression in peripheral blood mononuclear cells (PBMCs).
Methods:
Eleven patients undergoing cardiac surgery under cardiopulmonary bypass were enrolled in the study. Peripheral blood samples were collected before CPB (T0), 1 h after CPB (T1) and at the end of operation (T2), and PBMCs were obtained by gradient centrifugation. The profile of protein expression was analyzed using 2-D gel electrophoresis (2-DE) and mass spectrometry. The candidate proteins were further identified by Western blotting.
Result:
Compared to protein profile at T0, 12 protein spots were identified to be up-regulated in PBMCs at T1 (P <0.05), among which S100A9 reached the peak level at T1 and decreased after operation,but not returned to its initial level.
Conclusion:
Results indicate that 12 proteins are likely to be involved in CPB, however, their roles need to be elucidated.
