Correlation between lipoprotein-associated phospholipase A2 and poststroke mild cognitive impairment

ABSTRACT

Objectives

This study aimed to investigate the correlation between serum lipoprotein-associated phospholipase A2 (Lp-PLA2) and poststroke mild cognitive impairment (PSMCI).

Methods

The patients included in the study were divided into PSMCI (68 cases) and cognitively normal (CN) (218 cases) groups and followed up for six months. Demographic and clinical data were collected. A logistic regression analysis was performed to determine whether Lp-PLA2 is an independent risk factor for PSMCI. Spearman’s correlation analysis was used to examine the correlation between Lp-PLA2 levels and Montreal Cognitive Assessment (MoCA) scores. A receiver operating characteristic (ROC) curve analysis was performed to determine the diagnostic threshold value of Lp-PLA2 for PSMCI.

Results

Serum Lp-PLA2 levels were significantly higher in the PSMCI group than in the CN group. The logistic regression analysis showed that Lp-PLA2 was an independent risk factor for PSMCI (OR = 1.05, 95% CI = 1.03–1.07). Spearman’s correlation analysis revealed a significant correlation between the Lp-PLA2 levels and MoCA scores (R = -0.49). The area under the ROC curve for Lp-PLA2 was 0.849, and the threshold value for PSMCI occurrence was 236.8 ng/ml.

Conclusions

Elevated serum Lp-PLA2 is an independent risk factor for PSMCI and may serve as a potential biomarker for PSMCI.

KEYWORDS:

• Lipoprotein-associated phospholipase A2
• stroke
• poststroke mild cognitive impairment
• biomarker
• dementia

Author contributions

Yawei Cao and Xiaofeng Zhu designed the study, performed the study, and drafted the manuscript. Jin Shang and Jinlong Zheng collected and analyzed the data and critically reviewed the article. Xiangyang Tian substantially revised the article. Qiu Han and Jun Shen conceived of the study, participated in its design and coordination, and critically reviewed the article. All authors reviewed and agreed on all versions of the article before submission, during revision, the final version accepted for publication, and any significant changes introduced at the proofing stage and agree to take responsibility and be accountable for the contents of the article and to share responsibility to resolve any questions raised about the accuracy or integrity of the published work.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Reviewer disclosures

Peer reviewers on this manuscript have no relevant financial or other relationships to disclose.

Ethical approval

This study was approved by the Ethics Committee of the First People’s Hospital of Huai’an (No. KY-2023-076-01).

Patient consent

Participatory consent was obtained from all patients.

Additional information

Funding

This investigator-initiated study was funded by the Huai ‘an First People’s Hospital innovation team project (YCT202304), Xuzhou Medical University science and technology development fund surface project (XYFM202311).