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Article Abstract
Objective: To study the regulatory effect of Ligustrazine Injection (LI) on the cellular immune function in patients undergoing autologous blood transfusion (ABT).
Methods: Enrolled were 60 patients scheduled for receiving selective lumbar surgery at the Department of Spinal Orthopedics, First Hospital Affiliated to Guangzhou University of Traditional Chinese Medicine during October 2009 to June 2010. They were equally randomized into two groups, the trial group and the control group. LI was given to patients in the trial group by intravenous dripping at the dose of 2 mg/kg 30 min before autologous blood collection. The LI (at the final concentration of 0.005%) was added in the heparin saline solution and the washing saline for recycle blood. No LI was given to patients in the control group. They received the same treatment of the trial group. The operation time, the amount of blood loss and blood transfusion were recorded. Patients' venous blood samples were collected for determining cytokines including interleukin-2 (IL-2), interleukin-10 (IL-10), interferon-gamma (IFN-gamma) by ELISA and calculating IL-2/IL-10 ratio before surgery (T1), 1 h (T2), 1 day (T3), and 5 days (T4) after ABT.
Results: There was no statistical difference in the amount of blood loss and blood transfusion, the levels of IL-2, IL-10, IFN-gamma, or IL-2/IL-10 at T1 between the two groups (P>0.05). Compared with T1 of the same group, the level of IL-2 decreased at T(2-4), IL-10 increased and IL-2/IL-10 decreased at T(2-3) in the two groups. The level of IFN-gamma decreased at T(2-4), IL-2/IL-10 increased at T4, the level of IL-10 decreased at T4 in the control group (P<0.05, P<0.01). The level of IL-10 decreased at T4 in the trial group with statistical difference (P<0.05, P<0.01). Compared with the control group, the level of IL-2, IFN-gamma, and IL-2/IL-10 at T(2-4) were obviously higher in the trial group. But the IL-10 level was lower in the trial group than in the control group at T(2-4) (P<0.05, P<0.01).
Conclusion: The application of LI in ABT had regulatory effects on the balance of cytokines.
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