出 处:《中国综合临床》2010年第10期1023-1025,共3页Clinical Medicine of China
基 金:基金项目:山东省科技攻关计划项目(2008GG30002033)
摘 要:目的探讨慢性心力衰竭(CHF)患者T辅助淋巴细胞(Th)和心率变异性(HRV)的相关性。方法选择CHF患者96例及健康体检者30名为研究对象,以γ-干扰素(IFN-γ)和白细胞介素-10(IL-10)分别代表Th1和Th2细胞,采用流式细胞仪测定所有入选者外周血淋巴细胞内细胞因子IFN-γ和IL-10的阳性率,用24h动态心电图(Holter)分析HRV特征。结果CHF患者淋巴细胞IL-10阳性率明显低于健康对照组[(16.4±5.8)%、(26.8±3.7)%,t=9.243,P〈0.001],淋巴细胞IFN-γ阳性率明显高于健康对照组[(18.4±7.3)%、(7.3±4.6)%t=7.917,P〈0.001];HRV各指标均明显低于健康对照组,24h正常心动周期的标准差(SDNN)为(98.6±21.3)、(145.1±42.6)ms,24h内5min节段平均心动周期的均值标准差(SDANN)为(83.9±22.4)、(136.5±39.6)ms,标准差平均值指数(SDNNI)为(40.6±14.5)、(55.8±17.9)ms,相邻正常心动周期差值均方根(RMSSD)为(20.7±12.9)、(29.1±12.6)ms,相邻两正常心动周期差值〉50ms的个数所占的百分比(PNN50)为(5.6±3.7)%、(11.8±4.4)%(t值分别为7.904、9.645、4.733、3.132、7.654,P均〈0.05),CHF患者IL-10阳性率与SDNN、SDANN、SDNNI、RMSSD、PNN50呈显著正相关(r值分别为O.49、0.57、0.58、0.47、0.52,P均〈0.01),IFN-γ阳性率及IFN-γ/IL-10比值与SDNN、SDANN、SDNNI、RMSSD、PNN50均呈显著负相关(r值分别为-0.49、~0.54、-0.57、-O.52、-0.53,-0.52、-0.64、-0.57、~0.58、-0.67,P均〈0.01)。结论CHF患者自主神经系统参与Th1/Th2平衡调节,交感神经系统促进Th1效应,副交感神经系统促进Th2效应。Objective To investigate the association of T help (Th) lymphocyte and heart rate variability (HRV) in congestive heart failure (CHF) patients. Methods Ninety-six patients with CHF and thirty healthy persons were enrolled in the study. Time-domain HRV analysis was performed based on 24 hour Hoher Electrocardiogram (ECG) monitoring. Interferon-γ (IFN-γ) was used as markers for the differentiation of Thl subsets and interleukin-10 (IL-10) for the Th2 subsets. IFN-7 and IL-10 in CD4^+T lymphocytes were quantified by 3-color flow cytometry. Results The frequency of IL-10-Producing T Cells in the CHF group was significantly lower than those in the healthy control ( ( 16.4 ± 5.8) % vs. ( 26, 8 ± 3.7 ) % , t = 9. 243, P 〈 0. 001 ). The frequency of IFN-γ in the CHF group (( 18.4 ± 7.3)% ) was significantly lower than that in the healthy controls ((7.3 ± 4.6) % ,t =7. 917, P 〈 O. 001 ). The following index of HRV in the CHF groups were all significantly lower than those in the healthy controls: (98.6 ±21.3)ms vs. (145. 1±42.6)ms for SDNN,(83.9 ±22.4)ms vs. (136.5±39.6)ms for SDANN, (40.6±14.5)ms vs. (55.8 ± 17.9)ms for SDNNI,(20.7 ± 12.9)ms vs. (29.1 ±12.6) ms for RMSSD, (5.6±3.7) % vs. ( 11.8± 4.4) % for PNN50 ( Ps 〈 0. 05 ). In CHF patients, the frequency of IL-10 were positively associated with SDNN, SDANN, SDNNI, RMSSD and PNNS0 ( r = 0.49,0.57, 0.5g ,0.47 and O. 52, respectively, Ps 〈 0.0O1 ). In the CHF patients ,the frequency of IFN-γ and IFN-γ/IL-10 ratio were negatively associated with SDNN, SDANN, SDNNI, RMSSD and PNNS0 ( r = - 0.49, - 0.54, - 0.57, - 0.52, -0.53, - 0.52, - 0.64, - 0.57, - 0.58, - 0.67, Ps 〈 0.01 ). Conclusions Autonomic nervous system is involved in the regulation of the balance of Thl/Th2 in patients with CHF. Sympathetic nerve system enhances the effect of Thl ,whereas parasympathetic nervous system enhances the effect of Th2.
关 键 词:心力衰竭 Γ-干扰素 白细胞介素-10 心率变异性
分 类 号:R541.6[医药卫生—心血管疾病]
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