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. 2025 Jul 28:16:1542549.
doi: 10.3389/fendo.2025.1542549. eCollection 2025.

Influence of glycated hemoglobin on thromboinflammation in acute ischemic stroke: a retrospective, propensity score matching study

Liuding Wang #  1   2 , Yifan Chen #  1   3 , Longtao Liu #  4 , Min Jia  1   5 , Yunfan Zhang  1   6 , Ze Chang  1   2 , Zhiyi Gong  7 , Jian Lyu  1   8   9 , Xiao Liang  1   2 , Yunling Zhang  1   2
Affiliations

Influence of glycated hemoglobin on thromboinflammation in acute ischemic stroke: a retrospective, propensity score matching study

Liuding Wang et al. Front Endocrinol (Lausanne). .

Abstract

Background: Hyperglycemia is acknowledged as a pivotal factor associated with poor prognosis in acute ischemic stroke (AIS). The intricate interplay among hyperglycemia, thrombosis, and inflammation has garnered significant attention. Therefore, we aimed to investigate the association between hemoglobin A1c (HbA1c) and risk of thrombosis, and the role of inflammation, in patients with AIS.

Methods: A total of 1,291 patients with AIS were identified from Xiyuan Hospital, China Academy of Chinese Medical Sciences. A propensity score matching was used to address baseline imbalances. AIS patients were divided into a high HbA1c group (n = 419) and a control group (n = 656) based on whether their initial HbA1c levels upon admission were above or below 6.5%. Thrombosis was assessed using coagulation parameters. Inflammation was reflected by markers such as the neutrophil-to-lymphocyte ratio (NLR), systemic immune-inflammation index (SII), and systemic inflammatory response index (SIRI). Chi-square test, independent sample t-test, Mann-Whitney U test, and logistic regression were used for correlation analysis.

Results: In AIS patients, HbA1c levels > 6.5% were significantly associated with abnormal coagulation function and elevated inflammatory response. Among AIS patients with elevated HbA1c, high fibrinogen levels were significantly correlated with increased inflammatory markers such as SII and SIRI. Furthermore, HbA1c > 6.5% was identified as an independent predictor for hypercoagulability in AIS patients (OR = 1.74, 95% CI 1.17 - 2.60, P = 0.006).

Conclusions: Elevated HbA1c levels were associated with severe hypercoagulability and heightened inflammatory responses following AIS onset. Elevated HbA1c levels may contribute to poorer outcomes, likely due to the thromboinflammation.

Keywords: cerebral infarction; coagulation dysfunction; diabetes; immune thrombosis; real world study.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Forest plot of the association between female, elevated HbA1c, and renal insufficiency with the risk of coagulation dysfunction in patients with AIS.
Figure 2
Figure 2
Receiver operating characteristic curve for logistic regression model (female, HbA1c > 6.5%, and renal insufficiency) in predicting coagulation dysfunction in patients with AIS.
Figure 3
Figure 3
Receiver operating characteristic curve for HbA1c as a continuous variable in predicting coagulation dysfunction in patients with AIS.
See this image and copyright information in PMC

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