Laboratory Medicine ›› 2024, Vol. 39 ›› Issue (9): 828-833.DOI: 10.3969/j.issn.1673-8640.2024.09.002

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Changes of serum NFL,Cys C and Lp-PLA2 levels in patients with vascular Parkinsonism and their clinical significance

LOU Zhan1, PENG Tao2, LIU Xingliang1, YUE Binghong1, LI Ran1, ZHI Yongyi1   

  1. 1. Department of Neurology,the First Affiliated Hospital of Hebei North University,Zhangjiakou 075000,Hebei,China
    2. Endoscopy Center,the First Affiliated Hospital of Hebei North University,Zhangjiakou 075000,Hebei,China
  • Received:2022-10-25 Revised:2024-05-23 Online:2024-09-30 Published:2024-10-15

Abstract:

Objective To investigate the changes of serum neurofilament light (NFL),cystatin C (Cys C) and lipoprotein-associated phospholipase A2 (Lp-PLA2) levels in patients with vascular Parkinsonism (VP)and their clinical significance. Methods From January 2018 to January 2022,60 VP patients (VP group),60 Parkinson's disease(PD) patients (PD group) and 50 healthy subjects (control group) were enrolled from the First Affiliated Hospital of Hebei North University. The general data of all the subjects were collected,and NFL,Cys C,Lp-PLA2,total cholesterol (TC),triglyceride (TG),uric acid (UA),fasting blood glucose and glycated hemoglobin A1c (HbA1c) were determined. The patients' cognitive function was assessed using the Montreal Cognitive Assessment (MoCA). The Unified Parkinson's Disease Rating Scale-Ⅲ(UPDRS-Ⅲ) was used to evaluate the degree of dyskinesia. Pearson correlation analysis was used to evaluate the correlation between indexes. Logistic regression analysis was used to evaluate the influence factors of VP. Receiver operating characteristic (ROC) curve was used to evaluate the diagnostic efficacy of single and combined determinations of VP and PD. Results The levels of serum NFL,Cys C and Lp-PLA2 in control group,PD group and VP group were increased successively (P<0.001). The MoCA score of VP group was lower than that of PD group (P<0.05),and the UPDRS-Ⅲ score was higher than that of PD group (P<0.001). There was no statistical significance in the other indexes among the 3 groups (P>0.05). NFL,Cys C,Lp-PLA2,MoCA score and UPDRS-Ⅲ score were all independent risk factors for VP (P<0.05). The levels of NFL,Cys C and Lp-PLA2 were negatively correlated with MoCA score (r = -0.396,-0.527 and -0.258,P<0.001),and they were positively correlated with UPDRS-Ⅲ score (r =0.562,0.428 and 0.344,P<0.001). The areas under curves (AUC) of serum NFL,Cys C,Lp-PLA2,MoCA score and UPDRS-Ⅲ score were 0.616,0.778,0.815,0.504,0.543 and 0.958,respectively. The AUC of single and combined determinations of 5 indexes for PD diagnosis was 0.610,0.703,0.685,0.379,0.404 and 0.802,respectively. Conclusions he levels of serum NFL,Cys C and Lp-PLA2 of VP patients are increased abnormally,which are related to the severity of patients' disease. The 3 indexes combined with MoCA score and UPDRS-Ⅲ score have good diagnostic value for VP.

Key words: Neurofilament light, Cystatin C, Lipoprotein-associated phospholipase A2, Vascular Parkinsonism

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