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Updated: May 5, 2026
Cell-free Biochemical Fluorometric Enzymatic Assay for High-throughput Measurement of Lipid Peroxidation in High Density Lipoprotein
Published on: October 12, 2017
Lipoproteins and cardiovascular risk--from genetics to CHD prevention
1Institute of Arteriosclerosis Research, University of Münster, Germany.
Insights
High cholesterol levels increase coronary heart disease (CHD) risk. A new risk prediction model identifies complex genetic and environmental factors, showing cholesterol lowering benefits are greatest at higher baseline levels.
Area of Science:
- Cardiovascular Medicine
- Genetics
- Epidemiology
Background:
- Dyslipidemia, including high LDL cholesterol and triglycerides, and low HDL cholesterol, is a major risk factor for coronary heart disease (CHD).
- Genetic factors contributing to lipid variation are complex, involving polygenes and environmental interactions, rather than single gene defects.
- Individual CHD risk is multifactorial, extending beyond lipid levels to encompass various contributing factors.
Purpose of the Study:
- To present a strategy for understanding complex genetic influences on lipid levels in the general population.
- To develop and validate a predictive model for CHD risk incorporating multiple risk factors.
Main Methods:
- Utilized data from the Münster Heart Study (PROCAM) to develop a multiple logistic function.
- The model incorporates nine independent variables to predict individual CHD risk.
- Analyzed log-linear relationships between LDL cholesterol and CHD risk using prospective study data.
Main Results:
- The developed risk prediction algorithm demonstrated a significant risk discrimination (nearly 40-fold) between individuals in the lowest and highest risk quintiles.
- A log-linear relationship between LDL cholesterol and CHD risk was confirmed, consistent across baseline levels and treatment-achieved levels.
- Cholesterol-lowering interventions yield the greatest benefits at higher baseline LDL cholesterol levels; no theoretical threshold exists below which lowering LDL cholesterol is ineffective for CHD risk reduction.
Conclusions:
- Complex genetic and environmental interactions play a significant role in lipid variation and CHD risk.
- A multifactorial risk prediction model can effectively discriminate between individuals at high and low risk for CHD.
- While lowering LDL cholesterol is beneficial, particularly at higher levels, the benefits must be weighed against potential side-effects and cost-effectiveness at lower levels.
Abstract:
Increased levels of low density lipoprotein (LDL) cholesterol and triglyceride, and low levels of high density lipoprotein (HDL) cholesterol, are associated with increased risk of coronary heart disease (CHD). Only a minor part of the variation in lipids can be explained by defects in single genes of large effect; the bulk of variation in most cases is due to the interaction of polygenes and environment. This paper describes a strategy for unravelling such complex genetic effects in the population at large. A person's risk of developing CHD is, however, not determined by levels of circulating lipids alone, but by a number of factors which contribute to his or her global risk. Based on the data of the Münster Heart Study (PROCAM), a multiple logistic function using nine independent variables for the prediction of risk has been developed. This function allows an almost 40-fold degree discrimination in risk between persons in the lowest and highest quintiles of the algorithm. Data from the Münster Heart Study and other prospective studies indicates a log-linear relationship between LDL cholesterol and CHD risk. The results of recent large scale intervention trials indicate that this relationship also holds true for LDL levels which are achieved by treatment. This indicates that the benefit achieved by cholesterol lowering is greatest at high baseline LDL cholesterol levels, and that at least for LDL cholesterol levels of > or = 80 mg. dl-1, there is no theoretical threshold below which lowering of LDL cholesterol cannot be expected to reduce CHD risk. However, at low LDL cholesterol levels the benefits of treatment may be outweighed by side-effects and by practical cost-benefit considerations. These issues are also discussed in detail in the present report.
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