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eISSN: 1643-3750

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Clinical Significance of Serum lncRNA Cancer Susceptibility Candidate 2 (CASC2) for Chronic Renal Failure in Patients with Type 2 Diabetes

Linxia Wang, Na Su, Yunna Zhang, Guangya Wang

(2nd Department of Endocrinology, Cangzhou Central Hospital, Cangzhou, Hebei, China (mainland))

Med Sci Monit 2018; 24:6079-6084

DOI: 10.12659/MSM.909510


BACKGROUND: LncRNA CASC2 has been established to have critical functions in tumorigenesis but, while its involvement in high-glucose-induced chronic renal failure remains unclear.
MATERIAL AND METHODS: We included patients with type 2 diabetes combined with chronic renal failure, as well as patients with diabetic retinopathy, diabetic ketoacidosis, diabetic foot infections or diabetic cardiomyopathy, and diabetic patients without any obvious complication, as well as healthy controls. Blood samples and renal tissues were obtained from each participant and expression of lncRNA CASC2 in those tissues was detected by qRT-PCR. Diagnostic value of lncRNA CASC2 for type 2 diabetes combined with chronic renal failure was evaluated by ROC curve analysis. All patients were followed up for 5 years and the occurrence of chronic renal failure was recorded.
RESULTS: Compared with healthy controls, expression of lncRNA CASC2 in serum and renal tissue was specifically downregulated in patients with type 2 diabetes combined with chronic renal failure but not in type 2 diabetic patients combined with other complications. Follow-up showed that patients with low serum level of lncRNA CASC2 had significantly higher incidence of chronic renal failure.
CONCLUSIONS: lncRNA CASC2 is a reliable diagnostic biomarker for type 2 diabetes combined with chronic renal failure and low serum level of lncRNA CASC2 predicts the occurrence of chronic renal failure in patients with type 2 diabetes.

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