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Hypercholesterolemia and hyper-alpha-lipoproteinemia in schoolchildren
Pediatrics
|October 1, 1978
Summary
High high-density lipoprotein cholesterol (HDL-C) levels can cause apparent hypercholesterolemia in children and often run in families. Quantifying HDL-C and low-density lipoprotein cholesterol (LDL-C) is crucial for assessing cardiovascular risk in these children.
Area of Science:
- Pediatric Endocrinology
- Clinical Lipidology
- Genetics
Background:
- Apparent hypercholesterolemia in children can be attributed to elevated high-density lipoprotein cholesterol (HDL-C).
- High HDL-C levels frequently exhibit familial aggregation.
- Understanding lipid profiles in children is essential for long-term cardiovascular health.
Purpose of the Study:
- To investigate the familial occurrence of elevated HDL-C in hypercholesterolemic children.
- To determine the prevalence of familial hypercholesterolemia patterns related to HDL-C.
- To emphasize the importance of differentiating HDL-C and low-density lipoprotein cholesterol (LDL-C) levels in pediatric hypercholesterolemia.
Main Methods:
- Identification of 17 kindreds with hypercholesterolemic probands.
- Analysis of lipid and lipoprotein profiles within affected families across generations.
- Assessment of C-HDL and C-LDL levels in probands and their relatives.
Main Results:
- Familial aggregation of elevated HDL-C was observed across multiple generations in several kindreds.
- Two kindreds showed three-generation vertical transmission of high HDL-C.
- Eight additional kindreds demonstrated two-generation vertical transmission of high HDL-C.
Conclusions:
- Elevated HDL-C is a significant factor in pediatric hypercholesterolemia and shows a familial pattern.
- Accurate measurement of HDL-C and LDL-C in hypercholesterolemic children is vital.
- Distinguishing between high HDL-C (potentially protective) and high LDL-C (increased risk) is critical for risk stratification in pediatric populations.