The relationship between serum Trx1,PDCD4,AQP4 expression and cognitive function in patients with Parkinson's disease

ZHAI Shupeng; JIA Hang; MIAO Tong; WEI Kangkang; ZHOU Guoping

doi:10.11958/20241632

Abstract：Objective To explore the relationship between serum thioredoxin 1(Trx1),programmed cell death factor 4(PDCD4),aquaporin 4(AQP4)expression and cognitive function in patients with Parkinson's disease(PD).Methods A total of 145 PD patients(PD group)were selected as the study subjects,and patients were divided into the cognition impairment(CI)group 43 cases and the no CI group(102 cases)according to the mini-mental state examination(MMSE).Another 105 healthy subjects in the same period were taken as the control group.General patient data were collected and analyzed.The serum expression of Trx1,PDCD4 and AQP4 were detected by ELISA.The correlation between serum levels of Trx1,PDCD4 and AQP4 in PD patients and CI score were analyzed by Pearson method.Multivariate Logistic regression was used to analyze influencing factors of CI in PD patients.The predictive values of serum Trx1,PDCD4 and AQP4 levels for the occurrence of CI in PD patients were analyzed by receiver operating characteristic(ROC)curve.Results Serum levels of Trx1 and AQP4 were lower in the PD group than those of the control group,and PDCD4 was higher in the PD group than that of the control group(P＜0.05).In the CI group,PD duration and PDCD4 levels were higher than those of the no CI group(P＜0.05),and BMI,years of education,MMSE score,MoCA score,Trx1 and AQP4 were lower than those in the no CI group(P＜0.05).In the PD group,serum Trx1 and AQP4 levels were positively correlated with MMSE and MoCA scores,and serum PDCD4 levels were negatively correlated with MMSE and MoCA scores(P＜0.05).The long course of disease and increased PDCD4 levels were risk factors for CI in PD patients,while increased Trx1 and AQP4 levels were protective factors for CI in PD patients(P＜0.05).Serum Trx1,PDCD4,AQP4 levels and the combined AUC for predicting CI in PD patients were 0.820,0.741,0.831 and 0.932,respectively,and the combined prediction was better than the respective prediction alone.Conclusion Serum Trx1,AQP4 and PDCD4 are closely related to cognitive function,and the combination of the three has high predictive value for CI in PD patients.