Serum Cystatin, Chemokine, and Gastrin-Releasing Peptide Precursors and Their Clinical Value in Patients with Chronic Renal Failure

Abstract

Objective. To investigate the serum cystatin (CysC), Chemerin, and gastrin-releasing peptide precursor (ProGRP) levels in patients with chronic renal failure (CRF). Methods. CRF patients admitted to our hospital from February 2019 to July 2019 were selected as the observation group, and 50 healthy patients were selected as the control group. The serum levels of CysC, Chemerin, ProGRP, and Scr of all subjects were detected. Patients with CRF were admitted for peritoneal dialysis (PD) treatment for 1 week, and continued treatment was performed. The survival rate of patients with CRF in nearly 1 year after continuous treatment was observed. Multivariate analysis of factors affecting survival time of CRF patients undergoing peritoneal dialysis was performed. The results were compared with those in the health group. The expression levels of CysC, Chemerin, ProGRP, and Scr in the observation group were all decreased, and the differences were statistically significant ( $P<0.05$ ). Pearson correlation analysis showed that Scr expression in CRF patients is positively correlated with CysC, Chemerin, and ProGRP ( $P<0.001$ ). The survival rate of 98 patients with CRF was 80.61% (79/98), and the mortality rate was 19.39% (19/98). Serum levels of CysC, Chemerin, ProGRP, and Scr in the death group are all higher than those in the survival group, and the differences are statistically significant ( $P<0.05$ ). CysC, Chemerin, ProGRP, and Scr are independent risk factors affecting survival time ( $P<0.05$ ). The AUC aspects of serum CysC, Chemerin, ProGRP, and Scr in predicting the survival rate of CRF patients in the treatment phase are 0.840, 0.775, 0.782, and 0.725, respectively. Conclusion. The serum levels of CysC, Chemerin, and ProGRP of CRF patients are abnormally elevated and are positively correlated with serum Scr of patients, which can be used as a reliable indicator of pathogenesis and prognosis assessment of CRF patients.