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Clin Biochem. 2013 Nov;46(16-17):1713-6. doi: 10.1016/j.clinbiochem.2013.08.007. Epub 2013 Aug 28.

The plasma levels of relaxin-2 and relaxin-3 in patients with diabetes.

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  • 1Department of Cardiology, The First Affiliated Hospital of Harbin Medical University, Harbin, China.

Abstract

OBJECTIVES:

Relaxin-2 has been found to alleviate fibrosis in experimental diabetic cardiomyopathy. In addition, the levels of serum relaxin-3 were increased and correlated with all the component traits of metabolic syndrome. We investigated the levels of plasma relaxin-2 or relaxin-3 and their relationship to component traits in patients with diabetes.

DESIGN AND METHODS:

We studied 33 newly diagnosed type 2 diabetes patients and 38 age-matched healthy subjects. Blood samples were taken at study entry, and relaxin-3, relaxin-2, fasting blood glucose, total cholesterol, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), triglycerides, serum insulin and hemoglobin A1c (HbA1c) levels were measured.

RESULTS:

Relaxin-2 levels were significantly lower in patients with diabetes than in controls: the median plasma relaxin-2 concentration was 34.68 pg/mL (range, <29.00-50.81 pg/mL) in patients with diabetes and 45.80 pg/mL (range, <37.42-54.46 pg/mL) in controls (p=0.0150). However, no differences in relaxin-3 levels were observed between the diabetes group and controls (p=0.6550). The plasma levels of relaxin-2 or relaxin-3 were not correlated with systolic blood pressure (BP), diastolic BP, total cholesterol, LDL-C, HDL-C, triglyceride, fasting blood glucose, fasting insulin and HbA1c in patients with diabetes. Additionally, there was no correlation between the plasma concentrations of relaxin-2 and relaxin-3 in patients with diabetes (rs=0.225; p=0.208).

CONCLUSIONS:

We conclude that the plasma levels of relaxin-2 in diabetes patients were lower than in controls, however, there are no difference in plasma relaxin-3 concentrations between controls and patients with diabetes. Relaxin-2 or relaxin-3 levels are not related to component traits in patients with diabetes.

© 2013.

KEYWORDS:

BP; Diabetes; HDL-C; HOMA2; HbA(1c); LDL-C; Relaxin-2; Relaxin-3; blood pressure; hemoglobin A(1c); high-density lipoprotein cholesterol; homeostasis model assessment; low-density lipoprotein cholesterol

PMID:
23994775
[PubMed - indexed for MEDLINE]
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