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Type 1 Diabetes: Early Signs of Heart Disease in Children

Type 1 Diabetes: Early Signs of Heart Disease in Children

Researchers at Children's Hospital of Wisconsin discovered the early signs of cardiovascular disease are likely to manifest before the onset of puberty in many children with diabetes.

Cardiovascular disease is the leading cause of death in patients with diabetes. Patients with type 1diabetes have a 200 percent to 400 percent greater chance of developing cardiovascular disease than those without diabetes.

The researchers studied 21 preadolescent children - average age 8.5 years - with type 1 diabetes, and compared that group to 15 healthy siblings. Investigators looked at flow-mediated dilatation (FMD), a gauge of the health of a major blood vessel of the upper arm artery, in both groups. FMD percentage (FMD%,) is a way to measure any stiffening of the blood vessels; stiffening blood vessels is an early precursor of cardiovascular disease.

Children who had high blood pressure, family history of high cholesterol or premature cardiovascular disease from other causes were excluded. Blood samples were collected from all participants to monitor cholesterol and sugar levels.

When tested, the blood vessels of children with type 1 diabetes had a lower FMD% change, which means their blood vessels were less expandable than the control group suggesting that higher circulating glucose results in increased rigidity of blood vessels independent of serum cholesterol levels.

The patients with diabetes also had vascular inflammation, which is a known harbinger of future cardiovascular risk. Long-term studies are needed to evaluate the progression of those vascular changes through puberty and beyond.

REHACARE.de; Source: Medical College of Wisconsin

- More about the Medical College of Wisconsin at: www.mcw.edu

 
 

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