TITLE

Serum copeptin as a new biomarker in the early diagnosis of decline in renal function of type 2 diabetes mellitus patients

AUTHOR(S)
Wen Hu; Yao-Jun Ni; Li Ma; Hai-Rong Hao; Liang Chen; Wei-Nan Yu
PUB. DATE
August 2015
SOURCE
International Journal of Clinical & Experimental Medicine;2015, Vol. 8 Issue 6, p9730
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Objective: This study aimed to investigate the correlation between serum copeptin and glomerular filtration rate (GFR) in type 2 diabetes mellitus (T2DM) patients and to investigate the role of serum copeptin in the diagnosis of early DN in T2DM patients. Methods: 120 T2DM inpatients were recruited and divided into 2 groups according to 24-h urine albumin excretion (UAE): normal UAE group (UAE<30 mg/24 h) and microalbuminuria group (30 mg/24 h≤UAE≤300 mg/24 h). Results: Decline in GFR was found in 6.1% of patients in normal UAE group and 26.4% in microalbuminuria group. However, serum copeptin was comparable between two groups. Serum copeptin was negatively related to GFR (r=-0.586, P<0.001). Multivariate logistic regression analysis showed, after adjust ment for age and gender, the OR of copeptin, 24-h UAE was 1.234 (95% CI: 1.003-1.456) (P<0.05) and 1.068 (95% CI: 1.005-1.187) (P<0.05), respectively. Univariate analysis of ROC showed the sensitivity of copeptin and 24-h UAE was 78.9% and 63.2%, respectively and the specificity was 88.9% and 89.7%, respectively in the diagnosis of DN, but the area under ROC of copeptin in combination with 24-h UAE was 0.90 (95% CI: 0.82-0.99) with the sensitivity of 80.9% and specificity of 91.1%. Conclusion: Serum copeptin is an independent risk factor of decline in renal function of T2DM patients. Copeptin in combination with 24-h UAE are helpful for the early diagnosis of DN. The causative relationship between serum copeptin and GFR is required to be further studied in long-term follow up.
ACCESSION #
108800025

 

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