检验医学 ›› 2026, Vol. 41 ›› Issue (9): 884-890.DOI: 10.3969/j.issn.1673-8640.2026.09.010

• 论著 • 上一篇    下一篇

效应-记忆T细胞线粒体膜电位变化和炎症指标对老年脓毒症相关脑病患者短期神经功能恢复的预测价值

施奕文1, 张亚娟2, 刘媛3, 张媛媛3, 付婧3()   

  1. 1 淮安市第二人民医院急诊科, 江苏 淮安 223001
    2 淮安市第二人民医院内镜中心, 江苏 淮安 223001
    3 淮安市第二人民医院重症医学科, 江苏 淮安 223001
  • 收稿日期:2025-12-10 修回日期:2026-06-30 出版日期:2026-09-30 发布日期:2026-09-29
  • 通讯作者: 付 婧,E-amil:13861569743@163.com。
  • 作者简介:施奕文,女,1999年生,学士,住院医师,主要从事脓毒症诊治工作。

Predictive value of mitochondrial membrane potential changes in effector-memory T cells and inflammatory indicators for short-term neurological functional recovery in elderly patients with sepsis-associated encephalopathy

SHI Yiwen1, ZHANG Yajuan2, LIU Yuan3, ZHANG Yuanyuan3, FU Jing3()   

  1. 1 Department of Emergency, Huai'an Second People's Hospital, Huai'an 223001,Jiangsu, China
    2 Center of Endoscopy, Huai'an Second People's Hospital, Huai'an 223001,Jiangsu, China
    3 Department of Critical Care Medicine, Huai'an Second People's Hospital, Huai'an 223001,Jiangsu, China
  • Received:2025-12-10 Revised:2026-06-30 Online:2026-09-30 Published:2026-09-29

摘要:

目的 探讨效应-记忆T细胞(Tem)线粒体膜电位(MMP)指标和炎症指标在判断老年脓毒症相关脑病(SAE)患者短期神经功能恢复中的价值。方法 选取2020年10月—2025年10月淮安市第二人民医院老年SAE患者158例,根据治疗后14 d神经功能恢复情况分为恢复良好组和恢复不良组。收集所有患者的临床资料,并检测入院时T细胞亚群、CD4+CD45RA-CD62L-Tem(简称CD4+Tem)的MMP和低MMP细胞占该亚群细胞的百分比(简称CD4+Tem MMP-Low%)、CD8+CD45RA-CD62L-Tem(简称CD8+Tem)的MMP和低MMP细胞占该亚群细胞的百分比(简称CD8+Tem MMP-Low%)、全血计数、C反应蛋白(CRP)、降钙素原(PCT);计算中性粒细胞/淋巴细胞比值(NLR)、系统性免疫炎症指数(SII)、系统性炎症反应指数(SIRI)。采用多因素Logistic回归分析评估老年SAE患者神经功能恢复不良的影响因素。采用受试者工作特征(ROC)曲线评价各项指标单项和联合判断老年SAE患者短期神经功能恢复不良的效能。结果 恢复不良组CD4/CD8比值、CD4+Tem MMP、CD8+Tem MMP均低于恢复良好组(P<0.001),CD4+Tem MMP-Low%、CD8+Tem MMP-Low%、NLR、SII、SIRI、CRP、PCT均高于恢复良好组(P<0.001)。CD4/CD8比值降低和CD4+Tem MMP、CD8+Tem MMP、NLR升高均是老年SAE患者神经功能恢复不良的危险因素(P<0.05)。CD4/CD8比值、CD4+Tem MMP、CD8+Tem MMP、NLR单项和联合判断老年SAE患者神经功能恢复不良的曲线下面积(AUC)分别为0.669、0.679、0.717、0.720、0.835。结论 CD4/CD8 比值、Tem MMP指标联合NLR可有效预测老年SAE患者短期神经功能恢复情况,为临床早期干预提供参考。

关键词: T细胞亚群, 线粒体膜电位, 炎症指标, 脓毒症相关脑病, 神经功能恢复, 老年人

Abstract:

Objective To investigate the value of mitochondrial membrane potential(MMP)indicators and inflammatory indicators of effector-memory T cells(Tem)in judging the short-term neurological functional recovery of elderly patients with sepsis-associated encephalopathy(SAE). Methods A total of 158 elderly SAE patients from Huai'an Second People's Hospital from October 2020 to October 2025 were enrolled. They were classified into good recovery group and poor recovery group according to the neurological functional recovery status for 14 d after treatment. The clinical data were collected,and the T cell subsets,CD4+CD45RA-CD62L-Tem(referred to as CD4+ Tem)MMP and the percentage of low MMP cells in this subset of cells(referred to as CD4+Tem MMP-Low%),CD8+CD45RA-CD62L-Tem(referred to as CD8+Tem)MMP and the percentage of low MMP cells in this subset of cells(referred to as CD8+Tem MMP-Low%),whole blood cell counts,C-reactive protein(CRP)and procalcitonin(PCT)were determined. The neutrophil/lymphocyte ratio(NLR),systemic immune-inflammation index(SII),systemic inflammatory response index(SIRI)were calculated. Multivariate Logistic regression analysis was used to evaluate the influencing factors of poor neurological functional recovery in elderly SAE patients. Receiver operating characteristic(ROC)curve was used to evaluate the efficacy of single and combined determinations of various indicators in judging the poor short-term neurological functional recovery of elderly SAE patients. Results The CD4/CD8 ratio,CD4+Tem MMP,CD8+Tem MMP in poor recovery group were lower than those in good recovery group(P<0.001),while CD4+Tem MMP-Low%,CD8+Tem MMP-Low%,NLR,SII,SIRI,CRP and PCT were higher than those in good recovery group(P<0.001). Decreased CD4/CD8 ratio and increased CD4+Tem MMP,CD8+Tem MMP,NLR were all risk factors for poor neurological functional recovery in elderly SAE patients(P<0.05). The areas under curves(AUC)of CD4/CD8 ratio,CD4+Tem MMP,CD8+Tem MMP,NLR single and combined determinations in judging poor neurological functional recovery of elderly SAE patients were 0.669,0.679,0.717,0.720 and 0.835,respectively. Conclusions CD4/CD8 ratio,Tem MMP combined with NLR can effectively predict the short-term neurological functional recovery of elderly SAE patients and can provide a reference for early clinical intervention.

Key words: T cell subset, Mitochondrial membrane potential, Inflammatory indicator, Sepsis-associated encephalopathy, Neurological functional recovery, Elderly

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