Laboratory Medicine ›› 2022, Vol. 37 ›› Issue (9): 839-843.DOI: 10.3969/j.issn.1673-8640.2022.09.008

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Distribution of some common intestinal bacteria in elderly patients with acute cerebral infarction and its correlation with cognitive function

YANG Xiaolan1, HU Zengjun2(), WANG Shengqing1, MA Shuxia1, ZENG Yongjie1, WANG Chenglei1   

  1. 1. The First People's Hospital of Baiyin,the Third Affiliated Hospital of Gansu University of Chinese Medicine,Baiyin 730900,Gansu,China
    2. Department of Scientific Research,Baiyin Hospital of Integrated Traditional Chinese and Western Medicine,Baiyin 730900,Gansu,China
  • Received:2021-07-20 Revised:2021-12-15 Online:2022-09-30 Published:2022-10-25
  • Contact: HU Zengjun

Abstract:

Objective To observe the distribution of some common intestinal bacteria in elderly patients with acute cerebral infarction(ACI),and to analyze its correlation with cognitive function. Methods Totally,93 elderly patients with ACI admitted to the Third Affiliated Hospital of Gansu University of Chinese Medicine from April 2019 to April 2021 were enrolled as research subjects,and they were followed up for at least 6 months after thrombolytic therapy,which were classified into cognitive impairment group and normal cognitive group. The baseline data were collected,the distribution of some common intestinal bacteria in the 2 groups before treatment was determined,and the correlation between some common intestinal bacteria's distribution and cognitive function in elderly patients with ACI before treatment was analyzed. Results In 93 elderly patients with ACI at 6 months of follow-up after thrombolytic therapy,49 cases had cognitive impairment,the incidence rate was 52.69%. The numbers of Enterobacteriaceae and Enterococcus in cognitive impairment group were higher than those in normal cognitive group,and the numbers of Bifidobacterium,Lactobacillus and Peptococcus were lower than those in normal cognitive group(P<0.05). The results of Logistic regression analysis showed that a large number of Enterobacteriaceae and Enterococcus were risk factors for cognitive impairment in elderly patients with ACI [odds ratios(OR)were 1.777 and 1.689,P<0.05],a large number of Bifidobacterium,Lactobacillus and Peptococcus were protective factors for cognitive impairment in elderly patients with ACI(OR=0.213,0.242 and 0.409,P<0.05). Receiver operating characteristic(ROC) curve analysis showed that the areas under curves of the numbers of Enterobacteriaceae,Enterococcus,Bifidobacterium,Lactobacillus and Peptococcus before treatment in predicting cognitive impairment in elderly patients with ACI were 0.722,0.803,0.830,0.730 and 0.722,respectively,which had certain predictive value. Conclusions There is a correlation between cognitive function and the distribution of some common intestinal bacteria in elderly patients with ACI.

Key words: Intestinal bacterium, Acute cerebral infarction, Elderly, Cognitive impairment, Correlation

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