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Endothelial dysfunction and increased arterial intima-media thickness in children with type 1 diabetes

Mikko J Järvisalo1, Maria Raitakari, Jyri O Toikka

  • 1Department of Clinical Physiology, University of Turku, Turku, Finland. mikko.jarvisalo@utu.fi

Circulation
|March 17, 2004
PubMed

Insights

Children with type 1 diabetes often show impaired endothelial function, indicated by reduced flow-mediated dilation (FMD). This dysfunction is linked to early signs of atherosclerosis, specifically increased carotid artery intima-media thickness (IMT).

Area of Science:

  • Pediatric Endocrinology
  • Cardiovascular Research
  • Diabetes Mellitus

Background:

  • Endothelial dysfunction is implicated in atherosclerosis development in type 1 diabetes.
  • Early detection of vascular changes in diabetic children is crucial.

Purpose of the Study:

  • To investigate vascular endothelial function in children with type 1 diabetes.
  • To determine if endothelial dysfunction correlates with early atherosclerotic changes.

Main Methods:

  • Utilized noninvasive ultrasound to assess brachial artery flow-mediated dilation (FMD) and carotid artery intima-media thickness (IMT).
  • Studied 75 children: 45 with type 1 diabetes and 30 healthy controls.

Main Results:

  • Children with type 1 diabetes exhibited significantly lower FMD and increased IMT compared to controls.
  • Endothelial dysfunction (low FMD) in diabetic children was associated with higher carotid IMT and elevated LDL cholesterol.
  • Multivariate analysis identified diabetes, low FMD, and high LDL cholesterol as correlates of increased IMT.

Conclusions:

  • Impaired FMD is a common finding in children with type 1 diabetes.
  • Endothelial dysfunction is associated with increased carotid artery IMT in this population.
  • These findings suggest a predisposition to early atherosclerosis in children with type 1 diabetes due to endothelial dysfunction.
Abstract

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