摘要
目的观察不同浓度曲马多和吗啡预先给药对成人静脉血辅助性T淋巴细胞(Th细胞)分化的影响。方法采集无免疫性疾病的15例门诊小手术病人外周静脉血20ml,进行全血和外周血单个核细胞(PBMCs)培养。随机分为空白对照组(C组)、不同浓度吗啡组[10ng·ml-1(M1组)、100ng·ml-1(M2组)、1000ng·ml-1(M3组)]及不同浓度曲马多组[50ng·ml-1(Q1组)、500ng·ml-1(Q2组)、5000ng·ml-1(Q3组)]。培养的全血和PBMCs在体外均用相应浓度药物预先作用24h,随后用刺激剂刺激。24h后采用三色流式细胞术检测各组全血及PBMCs中20000个淋巴细胞中Th1细胞及Th2细胞百分率,并计算Th1细胞与Th2细胞的比值(Th1/Th2)。结果Th1细胞百分率及Th1/Th2:与C组比较,M1、M2、M3、Q1、Q2、Q3组均降低(P<0.05);与M1组比较,M2、M3组降低,Q1组升高(P<0.05);与M2组比较,M3组降低,Q2组升高(P<0.05);与Q1组比较,Q2、Q3组降低(P<0.05)。与Q2组比较,Q3组降低(P<0.05)。Th2细胞百分率:与C组比较,M1、M2、M3、Q1、Q2、Q3组均升高;与M1组比较,M2、M3组升高,Q1组降低(P<0.05);与M2组比较,M3组升高,Q2组降低;与Q1组比较,Q2、Q3组升高。与Q2组比较,Q3组升高(P<0.05)。结论在体外曲马多和吗啡均可抑制细胞免疫功能,并呈浓度依赖性,曲马多的抑制作用弱于吗啡。
Objective To investigate and compare the effects of pretreatment with different concentrations of trarnadol and morphine on the differentiation of hunan helper T cells (Th) in vitro. Methods Fifteen ASA Ⅰ patients of both sexes (8 males, 7 females) aged 23-59 yrs scheduled for minor day-care surgery were enrolled in this study. The patients had never taken morphine and tramadol before. Blood samples were taken from peripheral vein. Whole blood and mononuclear cells isolated from peripheral blood (PBMCs) were incubated with morphine 10, 100 or 1000 ng·ml-1(group M1 , M2 , M3) or tramadol 50, 500, 5000 ng·ml-1(group Q1, Q2, Q3) for 24 h. Then irrntants was added and incubated for another 5 or 24 h. In the whole blood the level of IL-2 and IFN-γ(as markers of Th1 cells) and IL-4 and IL-10 (as markers of Th2 cells) were determined using three-color flow cytometry. In PBMCs the expression of CD4+ and CCR5+ (as markers of Thl cells) and CD4+ and CCR3+ (as markers of Th2 cells) were determined. The Th1/Th2 ratio was calculated. Results Pretreatment with morphine or tramadol significantly increased the number of Th2 cells while the number of Thl cells significantly decreased both in a dose-dependent manner leading to a significant decrease in Th1/Th2 ratio. Conclusion Tramadol and morphine can inhabit in vitro the cellular immune function in dose-dependent manner. The immunosuppressive effect of tramadol is less than that of morphine.
出处
《中华麻醉学杂志》
CAS
CSCD
北大核心
2005年第5期356-359,共4页
Chinese Journal of Anesthesiology
基金
江苏省医学重点人才资助项目(RC20022058)
