Novel biomarkers for subtle myocardial involvement in type I diabetes mellitus

Sonia A El-Saiedi1, Mona H Hafez1, Yasser M Sedky1

  • 1Division of Pediatric Cardiology, Pediatrics Unit.

Insights

Plasma cardiotrophin (CT-1) best predicts left ventricular systolic dysfunction, while brain natriuretic peptide (BNP) excels in predicting diastolic dysfunction in children with type 1 diabetes mellitus.

Area of Science:

  • Pediatric Cardiology
  • Diabetology
  • Biomarker Research

Background:

  • Type 1 diabetes mellitus (T1DM) can lead to impaired cardiac function in children.
  • Identifying reliable biomarkers is crucial for early detection of diabetic cardiomyopathy.

Purpose of the Study:

  • To identify the optimal cardiac biomarker for predicting left ventricular (LV) and right ventricular (RV) dysfunction in pediatric T1DM.
  • To compare the efficacy of various biomarkers including CT-1, IGFBP-7, and BNP.

Main Methods:

  • A case-control study involving 55 children with T1DM and 55 healthy controls.
  • Echocardiography (including 3D-STE and TDI) assessed LV and RV systolic/diastolic functions.
  • Measurements included HbA1c, troponin I, BNP, CT-1, activin-A, TGF-β, and IGFBP-7.

Main Results:

  • Children with T1DM exhibited RV and LV systo-diastolic dysfunction compared to controls.
  • CT-1 was the best predictor of LV systolic dysfunction (sensitivity 69%).
  • IGFBP-7 best predicted RV systolic dysfunction (sensitivity 63%), while BNP was optimal for diastolic dysfunction (sensitivity 82% for both RV and LV).

Conclusions:

  • CT-1 demonstrates diagnostic superiority for LV systolic dysfunction in pediatric T1DM.
  • BNP remains a key marker for diastolic dysfunction and heart failure with preserved ejection fraction (HFpEF).
  • BNP's accuracy and availability support its use as a screening tool for diabetic patients.
Abstract

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