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Hypertriglyceridemia and low high-density lipoprotein: risks for coronary artery disease?
1Division of Endocrinology, Stanford University School of Medicine, California, USA.
Insights
High triglyceride levels, often with low HDL, may increase coronary heart disease (CHD) risk. Research explores these lipid disorders and interventions, as not all benefit from LDL lowering alone.
Area of Science:
- Cardiovascular Medicine
- Lipidology
- Preventive Cardiology
Background:
- Elevated total cholesterol and LDL cholesterol are established coronary heart disease (CHD) risk factors.
- Lipid-lowering therapies reduce CHD incidence and mortality, but many patients do not fully benefit.
- Other lipid disorders, such as elevated triglycerides and low HDL, are implicated in atherogenesis.
Purpose of the Study:
- To evaluate the independent and combined role of elevated triglyceride levels and low HDL cholesterol in CHD risk.
- To review research on the impact of lifestyle modifications and pharmacologic interventions on these dyslipidemias.
Main Methods:
- Review of clinical trials and epidemiological studies investigating triglyceride levels, HDL cholesterol, and CHD.
- Analysis of data on the efficacy of lifestyle changes (diet, exercise) and medications in managing dyslipidemias.
Main Results:
- Evidence suggests that elevated triglycerides, particularly with low HDL, contribute significantly to CHD risk.
- Lifestyle interventions and specific pharmacologic agents can effectively modify triglyceride and HDL levels.
Conclusions:
- Elevated triglyceride levels and low HDL cholesterol represent important, often unaddressed, risk factors for CHD.
- Comprehensive lipid management strategies targeting triglycerides and HDL are crucial for reducing cardiovascular events.
Abstract:
Elevated total cholesterol and LDL cholesterol have been well established as risk factors for coronary heart disease (CHD). Several large clinical trials have demonstrated that lipid lowering decreases the incidence and mortality that results from CHD. However, a high percentage of subjects in these studies did not receive benefit from LDL lowering. Many experts believe that other lipid disorders may play a significant role in the atherogenic process, including elevated triglyceride levels alone or in association with a low level of HDL. Do elevated triglyceride levels pose an increased risk for CHD? This article describes the research done evaluating this question, as well as the influences of lifestyle changes and pharmacologic interventions on these dyslipidemias.