脓毒症患儿不同血糖水平对脏器损伤、氧化应激反应及Wnt5a炎症通路的影响
2019-04-21芳菲
芳菲
【摘要】 目的:分析膿毒症患儿不同血糖水平对脏器损伤、氧化应激反应及Wnt5a炎症通路的影响。方法:收集2016年9月-2017年8月笔者所在医院收治的90例脓毒症患儿治疗资料进行回顾性分析。参照患儿血糖水平分为脓毒症1组39例(血糖>10 mmol/L),脓毒症2组51例(血糖≤10 mmol/L),同时选取于笔者所在医院接种的健康儿童50例为健康组。入院当日,检测肝功能指标、氧化应激指标及Wnt5a炎症通路指标。结果:脓毒症1组和脓毒症2组谷草转氨酶(AST)、总胆红素(TBIL)及谷丙转氨酶(ALT)均明显高于健康组,且脓毒症1组AST、TBIL及ALT均明显高于脓毒症2组,差异均有统计学意义(P<0.05)。脓毒症1组和脓毒症2组丙二醛(MDA)、高级氧化蛋白产物(AOPPs)、活性氧簇(ROS)及脂质过氧化氢(LHP)均明显高于健康组,且脓毒症1组MDA、AOPPS、ROS及LHP均明显高于脓毒症2组,差异均有统计学意义(P<0.05);脓毒症1组和脓毒症2组谷胱甘肽过氧化物酶(GSH-Px)均明显低于健康组,且脓毒症1组GSH-Px明显低于脓毒症2组,差异均有统计学意义(P<0.05)。脓毒症1组和脓毒症2组血清MIP-1β、IL-1β、IL-12及IL-6均明显高于健康组,且脓毒症1组MIP-1β、IL-1β、IL-12及IL-6均明显高于脓毒症2组,差异均有统计学意义(P<0.05)。结论:高血糖的脓毒症患儿肝功能损伤程度较为严重,氧化应激和炎症反应较大,可作为脓毒症病情严重和预后效果欠佳的可靠指标。
【关键词】 脓毒症 不同血糖水平 肝功能损伤 氧化应激反应 Wnt5a炎症通路 影响
doi:10.14033/j.cnki.cfmr.2019.29.023 文献标识码 B 文章编号 1674-6805(2019)29-00-03
[Abstract] Objective: To analyze the effects of different blood glucose levels on organ injury, oxidative stress reaction and Wnt5a inflammatory pathway in children with sepsis. Method: Data of 90 children with sepsis admitted to our hospital from September 2016 to August 2017 were collected for retrospective analysis. According to the blood glucose level, 39 children in the sepsis group 1 (blood glucose>10 mmol/L) and 51 children in the sepsis group 2 (blood glucose≤10 mmol/L). Meanwhile, 50 healthy children inoculated in our hospital were selected as the healthy group. On the day of admission, the indexes of liver function, oxidative stress and Wnt5a inflammatory pathway were tested. Result: Glutamic-oxaloacetic transaminase (AST), total bilirubin (TBIL) and glutamic-pyruvic transaminase (ALT) in the sepsis group 1 and the sepsis group 2 were significantly higher than those of the healthy group, and AST, TBIL and ALT in the sepsis group 1 were significantly higher than those of the sepsis group 2, and the differences were statistically significant (P<0.05). Malondialdehyde (MDA), high oxidative protein products (AOPPs), reactive oxygen species (ROS) and lipid hydrogen peroxide (LHP) in the sepsis group 1 and the sepsis group 2 were significantly higher than those of the healthy group, and MDA, AOPPs, ROS, LHP in the sepsis group 1 were significantly higher than those of the sepsis group 2, and the differences were statistically significant (P<0.05). Glutathione peroxidase (GSH-Px) in the sepsis group 1 and the sepsis group 2 were significantly lower than those of the healthy group, and GSH-Px in the sepsis group 1 were significantly lower than that of the sepsis group 2, and the differences were statistically significant (P<0.05). Serum MIP-1β, IL-1β, IL-12 and IL-6 in the sepsis group 1 and the sepsis group 2 were significantly higher than those of the healthy group, and MIP-1β, IL-1β, IL-12 and IL-6 in the sepsis group 1 were significantly higher than those of the sepsis group 2 group, and the differences were statistically significant (P<0.05). Conclusion: The degree of liver function damage in children with sepsis with hyperglycemia is more serious, and oxidative stress and inflammatory reaction are large, which can be used as a reliable indicator of severe condition and poor prognosis of sepsis.
[Key words] Sepsis Different blood glucose levels Liver function damage Oxidative stress reaction Wnt5a inflammatory pathway Impact
First-authors address: Xiangyang NO.1 Peoples Hospital, Affiliated Hospital of Hubei University of Medicine, Xiangyang 441000, China
脓毒症为感染导致的全身性炎症反应综合征,具有死亡率高的显著特征[1]。相关资料显示,当前脓毒症患者死亡率已高达30%以上[2]。早期鉴别脓毒症严重程度是选择治疗方式的基础与前提,方便、准确的鉴别指标是当前临床关注的重点[3-5]。本研究深入分析不同血糖水平对于脓毒症患儿脏器损伤、Wnt5a炎症通路及氧化应激反应带来的影响,旨在为脓毒症早期鉴别指标的选择提供可靠依据,进行如下报道。
1 资料与方法
1.1 一般资料
收集2016年9月-2017年8月笔者所在医院收治的90例脓毒症患儿治疗资料进行回顾性分析。纳入标准:符合WHO脓毒症相关诊断标准。排除标准:精神类疾病;恶性肿瘤。参照患儿血糖水平分为脓毒症1组39例(血糖>10 mmol/L),脓毒症2组51例(血糖≤10 mmol/L),同时选取于笔者所在医院接种的健康儿童50例为健康组。脓毒症1组男25例,女14例;年龄1~11岁,平均(6.0±2.5)岁。脓毒症2组男31例,女20例;年龄2~11岁,平均(6.5±2.5)岁。健康组男26例,女24例;年龄2~12岁,平均(7.0±2.5)岁。三组一般资料比较,差异均无统计学意义(P>0.05),有可比性。
1.2 方法
(1)入院后立即抽取脓毒症患儿外周静脉血1 ml检测血糖水平,依据血糖水平进行分组。(2)入院当日,抽取外周静脉血2 ml于低速离心机中检测相关指标。
1.3 观察指标
通过放射免疫法检测肝功能指标AST、TBIL及ALT[6];采用日立BS-490型全自动生化仪器检测氧化应激指标MDA、AOPPs、ROS及LHP[7];通过酶联免疫吸附法检测Wnt5a炎症通路指标MIP-1β、IL-1β、IL-12及IL-6[8]。
1.4 统计学处理
采用SPSS 20.0软件对研究数据做统计学分析,计量资料以(x±s)表示,两组间采用t检验,多组间比较采用方差分析,计数资料以率(%)表示,采用字2检验,P<0.05为差异有统计学意义。
2 结果
2.1 三组肝功能指标对比
脓毒症1组和脓毒症2组血清AST、TBIL及ALT均明显高于健康组,且脓毒症1组血清AST、TBIL及ALT均明显高于脓毒症2组,差异均有统计学意义(P<0.05),见表1。
2.2 三组氧化应激指标对比
脓毒症1组和脓毒症2组血清MDA、AOPPs、ROS及LHP均明显高于健康组,且脓毒症1组血清MDA、AOPPs、ROS及LHP均明显高于脓毒症2组,差异均有统计学意义(P<0.05)。脓毒症1组和脓毒症2组GSH-Px均明显低于健康组,且脓毒症1组明显低于脓毒症2组,差异有统计学意义(P<0.05),见表2。
2.3 三组Wnt5a炎症通路指标对比
脓毒症1组和脓毒症2组血清MIP-1β、IL-1β、IL-12及IL-6均明显高于健康组,且脓毒症1组血清MIP-1β、IL-1β、IL-12及IL-6均明显高于脓毒症2组,差异均有统计学意义(P<0.05),见表3。
3 讨论
脓毒症患者存在严重的全身性炎症反应,机体内蛋白质、糖与脂质代谢均发生紊乱,若炎症反应加速扩散,则易引发多器官功能衰竭[9-11]。儿童为脓毒症高发群体,由于机体防御功能尚未发育完全,导致病原菌感染后更易进入循环系统,引发炎症扩散,对肝功能产生严重损伤。相关报道显示,肝功能障碍是导致脓毒症患者死亡的独立危险因素[12]。肝脏功能可反映病情严重程度,血清ALT与AST值和肝脏损伤程度呈正比。当肝脏功能严重受损时,TBIL含量会呈现出明显上升趋势。因此,临床将TBIL作为判断肝功能损伤的又一重要指标。本研究结果表明,脓毒症1组和脓毒症2组血清AST、TBIL及ALT均明显高于健康组,且脓毒症1组血清AST、TBIL及ALT均明显高于脓毒症2组,差异均有统计学意义(P<0.05)。
生理状态下机体内的超氧阴离子受到GSH-Px影响活力会丧失,使机体氧化/抗氧化平衡得到保护。当发生脓毒症后,机体内大量炎性因子进入到血液中,使氧化应激过程变得更为活跃,促使氧代谢产物LHP、MDA、AOPPs及ROS过度生成,进而使线粒体ATP减少,细胞衰竭。氧化应激属于脓毒症多脏器损伤的主要机制之一,也可对脓毒症病情进行客观衡量。本次研究中,脓毒症1组和脓毒症2组血清MDA、AOPPs、ROS及LHP均明显高于健康组,且脓毒症1组血清MDA、AOPPs、ROS及LHP均明显高于脓毒症2组(P<0.05);脓毒症1组和脓毒症2组GSH-Px均明显低于健康组,且脓毒症1组GSH-Px明显低于脓毒症2组(P<0.05),证实脓毒症合并高血糖会引发更为严重的全身氧化应激反应。
Wnt5a为经典Wnt信号通路。相关报道表明,巨噬细胞在受到病原菌影响時会使Wnt5a表达升高。Wnt5a属于巨噬细胞的效应分子,可对抗原递呈细胞进行诱导,提高IL-12的表达,且可对IL-6、MIP-1β及IL-1β的表达进行诱导。本次研究显示,脓毒症1组和脓毒症2组血清MIP-1β、IL-1β、IL-12及IL-6均明显高于健康组,且脓毒症1组血清MIP-1β、IL-1β、IL-12及IL-6均明显高于脓毒症2组,表明脓毒症合并高血糖患儿会出现更为明显的全身炎症反应。