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Effect of Glucagon-like Peptide-1 Receptor Agonism on Aortic Valve Stenosis Risk: A Mendelian Randomization Analysis
Paschalis Karakasis1,2, Dimitrios Patoulias3, George Giannakoulas4
1Second Department of Cardiology, Hippokration General Hospital, Aristotle University of Thessaloniki, 54642 Thessaloniki, Greece.
Abstract:
Background: Aortic valve repair is currently the only effective treatment for calcific aortic valve stenosis (CAVS), as no pharmacological therapies exist to prevent or slow its progression. Recent promising results showed that glucagon-like peptide-1 (GLP-1) attenuates the calcification of aortic valve interstitial cells. Therefore, we conducted a two-sample Mendelian randomization analysis to investigate the effect of GLP-1 receptor agonism (GLP-1Ra) on the risk of CAVS. Methods: The inverse variance weighted (IVW) method was used to obtain the primary causal inference, and several sensitivity analyses, including MR-Egger, were performed to assess the robustness of the results. Results: Based on the IVW estimates, the GLP-1Ra showed a neutral effect on the risk of CAVS (odds ratio [OR] per 1 mmol/mol decrease in glycated hemoglobin = 0.87, 95% CI = [0.69, 1.11], p = 0.259; I2 = 4.5%, Cohran's Q = 2.09, heterogeneity p = 0.35; F statistic = 16.8). A non-significant effect was also derived by the sensitivity analyses. No evidence of horizontal pleiotropy was identified. Conclusions: GLP-1Ra was not significantly associated with the risk of CAVS. Furthermore, pragmatically designed studies are required to evaluate the effect of GLP-1Ra on the clinical course of CAVS in different patient subgroups.
Insights
Glucagon-like peptide-1 receptor agonism (GLP-1Ra) does not appear to reduce the risk of calcific aortic valve stenosis (CAVS). Further research is needed to confirm these findings for GLP-1Ra and CAVS patients.
Area of Science:
- Cardiovascular Research
- Pharmacology
- Genetics
Background:
- Calcific aortic valve stenosis (CAVS) currently lacks pharmacological treatments, with aortic valve repair being the sole effective intervention.
- Emerging research indicates that glucagon-like peptide-1 (GLP-1) can reduce calcification in aortic valve interstitial cells.
Purpose of the Study:
- To investigate the potential causal effect of glucagon-like peptide-1 receptor agonism (GLP-1Ra) on the risk of developing CAVS using a two-sample Mendelian randomization analysis.
Main Methods:
- Employed a two-sample Mendelian randomization design.
- Utilized the inverse variance weighted (IVW) method for primary causal inference.
- Conducted sensitivity analyses, including MR-Egger, to ensure result robustness and assess for horizontal pleiotropy.
Main Results:
- GLP-1Ra demonstrated a neutral effect on the risk of CAVS (OR = 0.87, 95% CI [0.69, 1.11], p = 0.259).
- Sensitivity analyses corroborated the non-significant association between GLP-1Ra and CAVS risk.
- No evidence of significant horizontal pleiotropy was detected.
Conclusions:
- GLP-1 receptor agonism is not significantly associated with a reduced risk of calcific aortic valve stenosis.
- Further pragmatic studies are warranted to explore the impact of GLP-1Ra on CAVS clinical outcomes across diverse patient populations.
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