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Published on: October 12, 2017
Preheparin serum lipoprotein lipase mass is negatively related to coronary atherosclerosis
T Hitsumoto1, H Ohsawa, T Uchi
1Department of Clinical Medicine, Cardiovascular Center, Internal Medicine, Sakura Hospital, School of Medicine, TOHO University, Sakura-City, Chiba, Japan.
Insights
Low preheparin lipoprotein lipase (LPL) mass, an indicator of enzyme levels before heparin administration, is linked to the progression of coronary atherosclerosis. This finding suggests preheparin LPL mass may be a significant factor in heart disease development.
Area of Science:
- Cardiovascular Medicine
- Lipid Metabolism
- Biochemistry
Background:
- Preheparin serum contains lipoprotein lipase (LPL) mass with minimal activity.
- The clinical relevance of preheparin serum LPL mass remains largely undetermined.
- Understanding LPL's role in cardiovascular disease is crucial for risk assessment.
Purpose of the Study:
- To investigate preheparin LPL mass levels in patients with coronary atherosclerosis.
- To compare these levels with those in healthy individuals.
- To assess the correlation between preheparin LPL mass and coronary atherosclerosis severity.
Main Methods:
- Studied 70 men with coronary artery disease symptoms undergoing coronary angiography (stenosis defined as >= 75%).
- Included a control group of 77 healthy men.
- Analyzed preheparin LPL mass in relation to other cardiovascular risk factors.
Main Results:
- Patients with coronary atherosclerosis exhibited lower preheparin LPL mass compared to normal coronary and control groups.
- Multivariate analysis identified preheparin LPL mass as a significant predictor for the number of coronary lesions (t-value = -2.53).
Conclusions:
- Reduced preheparin LPL mass is associated with coronary atherosclerosis.
- Low preheparin LPL mass may play a critical role in the advancement of coronary atherosclerosis.
- Preheparin LPL mass warrants further investigation as a potential biomarker for cardiovascular risk.
Abstract:
In preheparin serum, there exists lipoprotein lipase (LPL) mass with little activity. The clinical significance of this preheparin serum LPL mass (preheparin LPL mass) is unclear. We studied the levels of preheparin LPL mass in patients with coronary atherosclerosis, comparing the results with those in healthy men. We also evaluated the correlation between preheparin LPL mass and the severity of coronary atherosclerosis by comparing with other risk factors such as age, smoking, family history, hypertension, hyperuricemia, diabetes mellitus, total cholesterol, triglyceride, high density lipoprotein-cholesterol and body mass index. The subjects, 70 men presenting with symptoms of coronary artery disease, underwent coronary angiographic examination. Significant narrowness was defined as > or = 75%. Control group comprised 77 men who had annual health checks and showed no abnormal findings. Preheparin LPL mass in the stenosis group was lower than normal coronary group and also than the control group. Multivariate analysis showed that preheparin LPL mass had the highest t-value (-2.53) for the number of lesions among the risk factors listed above. These results suggest that low preheparin LPL mass may be deeply involved in the progression of coronary atherosclerosis.
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