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Adiponectin: an independent risk factor for coronary heart disease in men in the Framingham offspring Study
Masumi Ai1, Seiko Otokozawa, Bela F Asztalos
1Lipid Metabolism Laboratory, Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA.
Insights
Higher plasma adiponectin levels predict lower coronary heart disease (CHD) risk in Caucasian men. This finding suggests adiponectin is an independent predictor of cardiovascular health in men.
Area of Science:
- Cardiovascular Disease Research
- Endocrinology
- Biomarker Discovery
Background:
- Coronary heart disease (CHD) remains a leading cause of mortality worldwide.
- Identifying reliable predictors of CHD risk is crucial for effective prevention strategies.
- Adiponectin, an adipokine, has been investigated for its role in metabolic and cardiovascular health.
Purpose of the Study:
- To investigate whether plasma adiponectin levels serve as an independent predictor of coronary heart disease (CHD) risk.
- To analyze the association between adiponectin levels and future CHD events in a cohort study.
Main Methods:
- Plasma adiponectin levels were measured using a fully automated assay in 3188 participants from the Framingham Offspring Study.
- Participants (mean age 57 years) were followed for a mean of 7.5 years for CHD events.
- Statistical analyses included adjustments for multiple cardiovascular risk factors and inflammatory markers.
Main Results:
- Plasma adiponectin levels were significantly higher in women than in men.
- In men, higher plasma adiponectin levels were a significant independent predictor of lower future CHD risk (HR 0.49, p<0.0022) after multivariate adjustments.
- A similar trend was observed in women, but did not reach statistical significance after adjustments.
Conclusions:
- Plasma adiponectin levels are an independent predictor of CHD risk in Caucasian men without prior CHD.
- The findings highlight the potential of adiponectin as a biomarker for cardiovascular risk assessment in men.
- Further research may explore the mechanisms underlying adiponectin's protective role in men's cardiovascular health.
Objective:
Our aim was to determine whether plasma adiponectin levels were an independent predictor of coronary heart disease (CHD) risk.
Methods And Results:
Plasma adiponectin levels were measured in 3188 male and female participants from cycle 6 of the Framingham offspring Study (mean age: 57 years in both men and women; BMI: 28.5 kg/m(2) in men and 27.3 kg/m(2) in women), using a novel fully automated assay. Plasma adiponectin levels (median [25th percentile, 75th percentile]) were significantly higher in female than in male CHD-free subjects (14.8 [10.7,20.5] microg/ml versus 9.0 [7.0,12.2] microg/ml, p<0.001). Participants were followed for a mean of 7.5 years. After adjustment for age, BMI, smoking status, systolic blood pressure, treatment for hypertension, diabetes, use of cholesterol-lowering medication, total cholesterol level, high-density lipoprotein cholesterol level, and C-reactive protein levels, a higher plasma adiponectin level was a significant predictor of lower risk of future CHD events (n=117) in men (HR 0.49, p<0.0022). A similar trend was observed in women, but was no longer significant after multivariate adjustments.
Conclusions:
Our data indicate that plasma adiponectin levels are an independent predictor of CHD in Caucasian men initially free of CHD.
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