目的:从临床和微生物学方面探讨牙周炎与脑小血管病(CSVD)的相关性。
方法:牙周炎患者(CP组,n=31)和CSVD患者(CSVD组,n=30)检查神经和牙周状况。收集龈下菌斑并使用16SrRNA测序进行。采用Logistic回归和LASSO回归分析与CSVD、分别。同时检测并比较两组龈沟液(GCF)中的炎症因子。
结果:临床依恋水平(CAL),牙齿数量和菌斑指数显示CP和CSVD组之间存在显着差异,同时,CAL与CSVD独立相关。此外,两组之间的微生物丰富度和组成不同。与牙周病原体相关的五个属(螺旋体,普雷沃氏菌,链球菌,梭杆菌,卟啉单胞菌)通过LASSO回归筛选出,提示与CSVD的潜在关联。最后,CSVD组GCF中炎性因子水平明显高于CP组。
结论:脑小血管病患者的牙周状况更差,同时,微生物群失调和宿主因素(炎症)之间的相互作用导致更好地了解牙周炎和CSVD之间的关系。
OBJECTIVE: To investigate the correlation between periodontitis and cerebral small vessel disease (CSVD) from the clinical and microbiological aspects.
METHODS: Periodontitis patients (CP group, n = 31) and CSVD patients (CSVD group, n = 30) were examined for neurological and periodontal condition. Subgingival plaque was collected and performed using 16S rRNA sequencing. Logistic regression and LASSO regression were used to analyze the periodontal parameters and subgingival microbiota related to CSVD, respectively. Inflammatory factors in gingival crevicular fluid (GCF) were also detected and compared between the two groups.
RESULTS: Clinical attachment level (CAL), teeth number and plaque index demonstrated a significant difference between CP and CSVD group, meanwhile, CAL was independently associated with CSVD. Besides, the microbial richness and composition were distinct between two groups. Five genera related to periodontal pathogens (Treponema, Prevotella, Streptococcus, Fusobacterium, Porphyromonas) were screened out by LASSO regression, suggesting a potential association with CSVD. Finally, the levels of inflammatory factors in GCF were statistically higher in CSVD group than those in CP group.
CONCLUSIONS: Cerebral small vessel disease patients demonstrated worse periodontal condition, meanwhile the interaction between microbiota dysbiosis and host factors (inflammation) leading to a better understanding of the association between periodontitis and CSVD.