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A Methodological Approach to Non-invasive Assessments of Vascular Function and Morphology
Published on: February 7, 2015
Extrinsic and intrinsic factors relating to intimal thickening in children
1Department of Paediatric Cardiology, Lund University Hospital, Lund, Sweden. erkki.pesonen@skane.se
Insights
Children exhibit significant intimal thickening, an early sign of atherosclerosis. Genetic factors and infections contribute to this vascular damage, indicating a need for early intervention in pediatric cardiovascular health.
Area of Science:
- Cardiovascular Science
- Pediatric Atherosclerosis Research
- Vascular Biology
Background:
- Intimal thickening, a precursor to atherosclerosis, is notably present in children.
- Classical risk factors (hypercholesterolemia, genetics) and acute factors influence its development.
- Genetic predisposition in high-risk children appears to dictate the severity of intimal thickening.
Purpose of the Study:
- To present morphological evidence of early atherogenesis in children.
- To explore the role of genetic background and extrinsic factors in pediatric intimal thickening.
- To investigate the impact of infections on endothelial dysfunction and vascular damage in children.
Main Methods:
- Morphological assessment of vascular structures in pediatric subjects.
- Analysis of genetic origins and correlation with intimal thickening magnitude.
- Evaluation of the relationship between infections (viral and bacterial) and intimal thickening.
Main Results:
- Children present with substantial intimal thickening, occupying over half the vascular lumen.
- Genetic factors in high-risk children significantly correlate with the degree of intimal thickening.
- Infections, both viral and bacterial, are linked to increased intimal thickening and endothelial injury.
Conclusions:
- Early atherogenesis, characterized by significant intimal thickening, is evident in children.
- Genetic predisposition and recurrent infections are key contributors to pediatric vascular damage.
- The findings highlight the critical need for early detection and management of cardiovascular risk factors in children.
Abstract:
Children already have intimal thickenings occupying over half of the vascular lumen. Intimal thickening is one of the first steps in atherogenesis. Classical risk factors such as hypercholesterolaemia, genetic background and acute noxious factors play a role in its development. Genetic origin of the children from high-risk groups for coronary heart disease seems to be a determinant of the magnitude of thickenings. Extrinsic factors such as infections also seem to play a role. The magnitude of the thickening is related to viral and bacterial infections. Infections may lead to endothelial injury and secondary intimal thickening. The process may advance stepwise with acute exacerbations of endothelial dysfunction and intimal thickening followed by incomplete healing. In particular, repeated acute infections might lead to permanent damage. Morphological evidence for early atherogenesis in children is presented.
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