B-RCA revealed circulating miR-33a/b associates with serum cholesterol in type 2 diabetes patients at high risk of ASCVD. (June 2018)

• Record Type: Journal Article
• Authors: Deng, Xujing; Qin, Shanshan; Chen, Yuqi; Liu, Huan-Yu; Yuan, Erfeng; Deng, Haohua; Liu, Song-Mei
• Is Part Of: Diabetes research and clinical practice. Volume 140(2018)
• Page Start: 191
• Page End: 199
• Publication Date: 2018-06
• Subjects: Branched rolling circle amplification -- miR-33 -- Cholesterol -- Type 2 diabetes -- Atherosclerotic cardiovascular disease; Diabetes -- Periodicals; Diabetes Mellitus -- Periodicals; 616.462
• DOI: 10.1016/j.diabres.2018.03.024
• Languages: English
• ISSNs: 0168-8227

Abstract

Abstract: Aims: Type 2 diabetes (T2D) is a complex metabolic disease with high incidence throughout the world. Dyslipidemia is the leading cause of atherosclerotic cardiovascular diseases (ASCVD) in T2D patients. hsa-miR-33 (miR-33) serves as a regulator in lipid metabolism. We hypothesized that blood miR-33 associates with serum lipids in T2D patients at high risk of ASCVD events. Methods: We developed a branched rolling circle amplification (B-RCA) method and assessed its sensitivity and specificity with miR-33a/b standards by traditional TaqMan assay. Circulating miR-33a/b level was then determined with B-RCA in 30 T2D patients at high risk for developing ASCVD and 33 healthy controls. Pearson correlation coefficient was used to evaluate the correlation between circulating miR-33a/b and serum cholesterol. Results: Compared with TaqMan assay, B-RCA method showed a similar specificity and a 100-fold higher sensitivity for miR-33a detection. Circulating miR-33a/b level is positively correlated with serum total cholesterol (TC) (r = 0.364, p = 0.048) and low-density lipoprotein cholesterol (LDL-C) (r = 0.383, p = 0.037) in T2D patients at high risk for developing ASCVD. Conclusions: Our B-RCA method provided an alternative strategy with specificity and high sensitivity for circulating miRNAs detection, and the results demonstrated that miR-33a/b might play an important role in cholesterol regulation.