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Higher serum betatrophin level in type 2 diabetes subjects is associated with urinary albumin excretion and renal function
Update time:2016-07-28 01:47:19   【 Font: Large  Medium Small

Abstract

Background
Betatrophin is a newly identified liver-derived hormone that is associated with glucose homeostasis and lipid metabolism. Although dysregulated lipid metabolism results in diabetic nephropathy (DN) development in patients with type 2 diabetes mellitus (T2DM), it is not understood whether betatrophin is associated with urinary albumin excretion and renal function.

Methods
Based on albumin/creatinine ratio (ACR), 109 T2DM patients were divided into normoalbuminuria (ACR <30 mg/g), microalbuminuria (ACR between 30 and 300 mg/g), and macroalbuminuria (ACR > 300 mg/g). Serum betatrophin levels of 109 T2DM patients and 32 healthy subjects were determined by enzyme-linked immunosorbent assay (ELISA).

Results
Serum level of betatrophin was significantly increased in T2DM patients with normoalbuminuria, microalbuminuria, and macroalbuminuria as compared with healthy subjects (P < 0.001). Serum betatrophin level was positively correlated with sex, duration of diabetes, systolic blood pressure (SBP), body mass index (BMI), ACR, and triglyceride, whereas it was inversely correlated with estimated glomerular filtration rate (eGFR), total cholesterol, and high-density lipoprotein cholesterol (HDL-C) (P < 0.001). Furthermore, multivariate regression analysis showed the betatrophin was significantly and positively independent with triglyceride and low-density lipoprotein cholesterol (LDL-C) (P < 0.05), whereas it was inversely independent with eGFR, total cholesterol, and low-density lipoprotein cholesterol (HDL-C) (P < 0.05). In addition, the betatrophin had higher odds of having DN [odds ratio (OR) = 5.65, 95 % confidence interval (CI) 2.17–14.57, P < 0.001].

Conclusion
Betatrophin is significantly increased in T2DM patients with different stages of albuminuria. Betatrophin may be a novel endocrine regulator involved in DN development.

 

Cited products
Source:Cardiovascular diabetology      by Chen C C, Susanto H, Chuang W H, et al.
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