Construction and validation of a diagnosis modelfor lupus nephritis based on urinarycircRNA expression levels
10.13431/j.cnki.immunol.j.20250071
- VernacularTitle:基于尿液circRNA表达水平的狼疮性肾炎诊断模型构建与验证
- Author:
Yujia XU
1
;
Youqing WANG
1
;
Shifang CHEN
1
Author Information
1. 湖州师范学院附属中心医院风湿免疫科,浙江 湖州 313000
- Publication Type:Journal Article
- Keywords:
lupus nephritis;
circular RNA;
urine;
diagnostic model;
validation analysis
- From:
Immunological Journal
2025;41(7):489-494
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the circRNA expression level in the urine of patients with lupus nephritis(LN),to construct a diagnostic model for LN,and to evaluate and verify its diagnostic efficacy.Methods A total of 120 patients with LN admitted from January 2022 to January 2024 were selected as the observation group and divided into the training group(n=84)and the validation group(n=36)at a ratio of 7:3.Another 100 healthy individuals who underwent physical examination were selected as the control group.The expression levels of circRNA-0001445,circRNA-002059,hsa-circ-0007385 and hsa-circ-0000006 in urine specimens of patients in the training group and the control group were detected by gene sequencing.Multivariate Logistic regression analysis was used to construct a diagnostic model for LN based on the urinary circRNA expression level.The diagnostic value of individual indicators and combined predictive models were evaluated by receiver operating characteristic(ROC)curve analysis,and then the predictive efficacy of the model was verified by the validation group.Results The expression levels of circRNA-0001445,circRNA-002059,hsa-circ-0007385 and hsa-circ-0000006 in the urine of patients in the training group were all higher than those of the control group(P<0.01).Multivariate Logistic regression analysis found that The expression levels of circRNA-0001445(OR=1.094),circRNA-002059(OR=1.040),hsa-circ-0007385(OR=1.033),and hsa-circ-0000006(OR=1.130)in theurine were independent factor for the diagnosis of LN(P<0.01).ROC curve analysis showed that the areas under the curve of combined model constructed based on the circRNA expression level in the urine were 0.985 and 0.911 in the training group and the validation group,respectively,with sensitivities of 95.00%and 91.67%,and specificities of 99.00%and 89.00%,all of which were higher than the diagnostic efficacy of a single urinary circRNA expression level.Conclusion The diagnostic model of LN constructed based on the expression level of circRNA in the urine has a high diagnostic efficacy,which has been confirmed by internal tests and may provide strong support for clinicians in the early diagnosis of LN.
