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Is there a relationship between resistin levels and left ventricular end-diastolic pressure?
Özge Turgay Yıldırım1, Aylin Yıldırır, Leyla Elif Sade
1Department of Cardiology, Faculty of Medicine, Başkent University; Ankara-Turkey. ozgeturgay@gmail.com.
Insights
This study found no correlation between resistin levels and left ventricular end-diastolic pressure (LVEDP) or coronary artery disease (CAD) severity. Resistin
Area of Science:
- Cardiovascular Medicine
- Endocrinology
- Biomarkers
Background:
- Resistin, a peptide hormone, is linked to atherosclerosis and diabetes.
- Elevated resistin levels correlate with coronary artery disease (CAD) and heart failure severity.
- A potential association between resistin and left ventricular end-diastolic pressure (LVEDP) is hypothesized but not yet studied.
Purpose of the Study:
- To investigate the relationship between resistin levels and LVEDP in patients with suspected CAD.
- To evaluate the association of resistin with CAD severity, carotid intima-media thickness (CIMT), and echocardiographic diastolic dysfunction.
Main Methods:
- 128 euvolemic patients with suspected CAD were enrolled.
- Resistin levels were measured using ELISA.
- LVEDP, CAD severity (≥50% stenosis), CIMT, and diastolic dysfunction parameters were assessed.
Main Results:
- No significant difference in LVEDP or resistin levels was observed between patients with and without severe CAD.
- Resistin levels showed no correlation with LVEDP, ejection fraction, Gensini score, or CIMT.
- No significant correlation was found between resistin levels and echocardiographic diastolic dysfunction parameters.
Conclusions:
- Resistin levels are not significantly correlated with LVEDP, CAD severity, CIMT, or diastolic dysfunction.
- Further research is needed to clarify the clinical utility of resistin as a biomarker.
Objective:
Resistin, a cysteine-rich peptide, is associated with atherosclerosis and diabetes. Resistin levels increase corresponding to coronary artery disease (CAD) and heart failure severity. Since resistin level tends to elevate with symptomatic heart failure, it is expected to be associated with left ventricular end-diastolic pressure (LVEDP). However, there is no relevant literature on the relationship between resistin levels and LVEDP. We aimed to evaluate the association between resistin levels and LVEDP, severity of CAD, carotid intima-media thickness (CIMT), and echocardiographic diastolic dysfunction parameters.
Methods:
For this study, 128 euvolemic patients with creatinine clearance >50 mg/dL and without acute coronary syndrome, who had typical chest pain or were stress test positive, were enrolled. Resistin level was measured by Enzyme-linked immunosorbent assays (ELISA) method. Severe CAD is defined as ≥50% stenosis in one of the major coronary arteries. LVEDP was measured during left heart catheterization.
Results:
After coronary angiography, 60 patients (46.9%) had severe CAD. The mean LVEDPs were similar for patients with and without severe CAD (p=0.480). The resistin levels did not differ between the groups (p=0.154). The resistin levels did not correlate with LVEDP (r=-0.045, p=0.627), ejection fraction (EF; r=0.110, p=0.228), the Gensini score (r=-0.091, p=0.328), and CIMT (r=0.082, p=0.457). No significant correlation was found between the echocardiographic diastolic dysfunction parameters and resistin levels.
Conclusion:
There was no significant correlation between resistin level and LVEDP, CAD severity, echocardiographic diastolic dysfunction parameters, and CIMT. Further studies are warranted to determine the efficacy of resistin in clinical use.
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