Secreted Frizzled-Related Protein 4 (SFRP4) is Elevated in Patients with Diabetes Mellitus

J M Brix1, E C Krzizek1, C Hoebaus2

  • 1Department of Medicine I, Rudolfstiftung Hospital Vienna, Vienna, Austria.

Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Metabolisme
|February 17, 2016
PubMed

Insights

Secreted frizzled-related protein 4 (SFRP4) is elevated in patients with type 1 diabetes, type 2 diabetes, and latent autoimmune diabetes in adults. This suggests SFRP4 may indicate general islet dysfunction and inflammation across diabetes types.

Area of Science:

  • Endocrinology
  • Metabolic Diseases
  • Molecular Biology

Background:

  • Secreted frizzled-related protein 4 (SFRP4) has been linked to islet inflammation and impaired insulin secretion.
  • Previous studies suggest SFRP4 is associated with type 2 diabetes (T2D), elevated HbA1c, and reduced insulin secretion.
  • SFRP4 has not been previously investigated across various diabetes types.

Purpose of the Study:

  • To investigate SFRP4 levels in patients with type 1 diabetes (T1D), T2D, and latent autoimmune diabetes in adults (LADA).
  • To determine if SFRP4 levels differ between diabetic patients and healthy controls.
  • To explore correlations between SFRP4 levels and clinical parameters in diabetes patients.

Main Methods:

  • SFRP4 levels were measured using ELISA in 179 patients (46 T1D, 55 T2D, 37 LADA) and their respective controls.
  • Anthropometric data, lipids, and renal parameters were assessed.
  • Multivariate analysis was used to identify predictors of SFRP4 levels.

Main Results:

  • Patients with T2D, LADA, and T1D exhibited significantly higher SFRP4 levels compared to healthy controls.
  • SFRP4 levels showed correlations with age, BMI, HbA1c, HDL-cholesterol, and triglycerides.
  • Multivariate analysis identified HDL-cholesterol, triglycerides, and BMI as predictors of SFRP4.

Conclusions:

  • SFRP4 is significantly elevated in patients across different diabetes types (T1D, T2D, LADA).
  • Increased SFRP4 suggests a general role in islet dysfunction and subclinical inflammation, irrespective of diabetes type.
  • SFRP4 may serve as a potential biomarker for islet dysfunction in diabetes.

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