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Published on: January 28, 2020
Inflammatory markers in coronary heart disease
Mohammad Madjid1, James T Willerson
1Texas Heart Institute, Houston, TX, USA.
Insights
Inflammation markers like C-reactive protein (CRP) and lipoprotein-associated phospholipase A2 (Lp-PLA2) indicate increased coronary heart disease (CHD) risk. Statins may reduce CHD risk in individuals with elevated CRP, even without high cholesterol.
Area of Science:
- Cardiovascular Medicine
- Inflammation Research
- Biomarker Discovery
Background:
- Inflammation is a critical factor in atherosclerosis and coronary heart disease (CHD) development.
- Understanding inflammatory markers aids in assessing cardiovascular risk.
Purpose of the Study:
- To review the role of C-reactive protein (CRP) and lipoprotein-associated phospholipase A2 (Lp-PLA2) in predicting CHD risk.
- To evaluate the clinical utility of inflammatory markers in cardiovascular risk stratification.
Main Methods:
- Systematic review of peer-reviewed, English-language studies.
- Focus on studies investigating CRP and Lp-PLA2 in relation to CHD events.
Main Results:
- Elevated serum CRP and Lp-PLA2 levels are linked to higher risk of incident CHD events.
- These markers are associated with risk across diverse populations and in primary/secondary prevention.
- Inflammatory markers are most beneficial for risk prediction in intermediate-risk individuals.
Conclusions:
- Statin therapy can decrease CHD risk in patients with elevated CRP, even in the absence of hyperlipidemia.
- Ongoing research aims to identify more specific serum markers for coronary artery inflammation.
- Targeting vascular inflammation with specific inhibitors, alongside statins, shows promise for future cardiovascular event prevention.
Introduction:
Inflammation plays a key role in the development of atherosclerosis and coronary heart disease (CHD).
Sources Of Data:
Peer-reviewed studies published in English-language journals were reviewed with a focus on C-reactive protein (CRP) and lipoprotein-associated phospholipase A(2) (Lp-PLA2).
Areas Of Agreement:
Elevated levels of serum CRP and Lp-PLA2 are associated with an increased risk of incident CHD events in both primary and secondary prevention studies across a wide range of age, gender and ethnic groups.
Areas Of Controversy:
The utility of inflammatory markers in predicting CHD risk when added to traditional risk factors is under debate. They are most useful in subjects in the intermediate-risk category.
Growing Points:
Treatment with a statin in subjects with elevated CRP but without hyperlipidemia can reduce the risk of CHD.
Areas Timely For Developing Research:
Extensive research is under way to identify additional novel serum markers with higher specificity for coronary artery plaque inflammation. Specific inhibitors against vascular inflammation in combination with medications to lower low-density lipoprotein cholesterol, i.e. statins, may help prevent cardiovascular events in the future.
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