中国全科医学 ›› 2022, Vol. 25 ›› Issue (09): 1130-1135.DOI: 10.12114/j.issn.1007-9572.2021.02.125

所属专题: 神经系统疾病最新文章合集

• 论著·脑健康研究 • 上一篇    下一篇

血清氧化三甲胺与缺血性脑卒中发生风险的相关性研究

罗嘉欣1,2, 张傲琪3, 高瑞江4, 李自如2, 朱润秀2, 姚远2,3,*, 袁军2,*   

  1. 1010107 内蒙古自治区呼和浩特市,内蒙古医科大学内蒙古临床医学院
    2010010 内蒙古自治区呼和浩特市,内蒙古自治区人民医院神经内科
    3010070 内蒙古自治区呼和浩特市,内蒙古大学生命科学学院
    4010010 内蒙古自治区呼和浩特市,内蒙古自治区人民医院卒中中心
  • 收稿日期:2021-10-02 修回日期:2021-12-02 出版日期:2022-03-20 发布日期:2022-03-01
  • 通讯作者: 姚远,袁军
  • 基金资助:
    内蒙古自治区科技计划项目--脑卒中智能化预防筛查与辅助诊疗系统研发与应用(2021GG0123)

Correlation Study between Serum Trimethylamine-N-oxide and the Risk of Acute Ischemic Stroke

LUO Jiaxin12ZHANG Aoqi3GAO Ruijiang4LI Ziru2ZHU Runxiu2YAO Yuan 23*YUAN Jun2*   

  1. 1.Inner Mongolia Clinical Medical CollegeInner Mongolia Medical UniversityHohhot 010107China

    2.Department of NeurologyInner Mongolia People's HospitalHohhot 010010China

    3.School of Life SciencesInner Mongolia UniversityHohhot 010070China

    4.Stroke CenterInner Mongolia People's HospitalHohhot 010010China

    *Corresponding authorYAO YuanAssociate professorE-mailzhjyq129@163.com

    YUAN JunProfessorE-mail13947108585@139.com

  • Received:2021-10-02 Revised:2021-12-02 Published:2022-03-20 Online:2022-03-01

摘要: 背景有效评估脑卒中发生风险及尽早启动一级预防对于降低脑卒中发病率至关重要,而氧化三甲胺(TMAO)是一种近年被发现的肠道微生物代谢产物,其与脑卒中发生风险关系的研究尚少。目的探究血清TMAO水平与缺血性脑卒中(AIS)发生风险的相关性。方法2020年10—12月,基于脑卒中高危人群筛查和干预项目,于内蒙古自治区呼和浩特市新城区社区脑卒中筛查人群中随机抽取500例为研究对象,依据研究标准最终纳入399例。依据"中风"危险评分卡将研究对象分为正常对照组(n=121)、中危组(即AIS发生风险中危人群,n=141)、高危组(即AIS发生风险高危人群,n=137)。收集研究对象的一般资料及实验室检查指标,采用酶联免疫吸附试验(ELISA)测定所有受试者血清TMAO水平。采用Pearson相关分析、Spearman秩相关分析探讨TMAO与AIS发生风险相关指标的相关性,采用有序多分类Logistic回归分析探究AIS发生风险的影响因素,绘制TMAO预测AIS发生风险的受试者工作特征曲线(ROC曲线)。结果高危组TMAO水平高于正常对照组(P<0.05)。相关性分析结果显示,TMAO与年龄、性别、高血压病史、糖尿病病史、目前吸烟、目前饮酒呈负相关关系(r=-0.182,rs值分别为-0.130、-0.262、-0.147、-0.178、-0.140,P<0.05),与缺乏运动、BMI呈正相关关系(rs=0.153,r=0.210,P<0.05)。有序多分类Logistic回归分析结果显示,TMAO(B=3.084,SE=0.426,P<0.001)是AIS发生风险评估分级的独立影响因素。当TMAO预测AIS发生风险的最佳截断值为3.28 μmol/L时,灵敏度为62.0%,特异度为91.6%,ROC曲线下面积(AUC)为0.790〔95%CI(0.737,0.837)〕。结论血清TMAO水平与AIS发生风险独立相关,可作为预测AIS发生风险的临床指标。

关键词: 缺血性卒中, 氧化三甲胺, 脑卒中发生风险, 影响因素分析, 预测

Abstract: Background

Assessment of the risks of stroke and then initiation of primary prevention are crucial to reducing the incidence rate of stroke. Trimethylamine-N-oxide (TMAO) is a recently discovered intestinal microbial metabolite, whose relationships with the risks of stroke have been rarely reported.

Objective

To explore the correlation between serum TMAO levels and the risks of acute ischemic stroke (AIS) .

Methods

With the supporting by the project of the National Health Commission (stroke high risk population screening and intervention) , five hundred cases were randomly selected from the stroke screening population in the New Urban Community of Hohhot city of Inner Mongolia from October to December 2020. Finally, 399 cases were included according to the set of standard, and then the 399 cases were divided into normal control group (n=121) , moderate AIS risk group (n=141) , and high AIS risk group (n=137) in accordance with the screening results (score of stroke risk rated using a scoring card) . Demographic and laboratory indices (including serum TMAO detected using ELISA) of all cases were collected. Pearson correlation test and Spearman rank correlation test were conducted to measure the correlation of TMAO with AIS risks. Multinomial and ordinal Logistic regressions were used to explore the influencing factors of AIS risks. ROC analysis was used to estimate the predictive value of TMAO for AIS risk.

Results

Compared with the control group, the serum TMAO level in high-risk group was increased significantly (P<0.05) . Correlation analysis results found that serum TMAO level was negatively associated with increased age, being female, history of hypertension, diabetes history, current smoking and drinking consumption (r=-0.182, rs=-0.130, -0.262, -0.147, -0.178, -0.140, P<0.05) , but positively associated with lack of exercise and increased BMI (rs=0.153, r=0.210, P<0.05) .The multinomial and ordinal Logistic regression analyses showed that increased TMAO was independently associated with increased risk of AIS (B=3.084, SE=0.426, P<0.001) . The AUC of serum TMAO in predicting AIS risk was 0.790 〔95%CI (0.737, 0.837) 〕with 62.0% sensitivity and 91.6% specificity when its optimal cut-off value was determined as 3.28 μmol/L.

Conclusion

Serum TMAO level may be independently related to AIS, which could be used as a clinical predictor for AIS.

Key words: Ischemic stroke, Trimethylamine-N-oxide, Risk of stroke, Root cause analysis, Forecasting

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