Journal
CARDIOVASCULAR DIABETOLOGY
Volume 22, Issue 1, Pages -Publisher
BMC
DOI: 10.1186/s12933-023-01920-6
Keywords
Clinical trial; RCT; Empagliflozin; Heart failure; Myocardial infarction; Trimethylamine N-oxide
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This study explored the relationship between SGLT2 inhibitors and TMAO after acute myocardial infarction (AMI) and found that SGLT2i treatment significantly increased TMAO levels compared to standard post-MI treatment. Age was positively associated with TMAO, while eGFR and LVEF were negatively associated with TMAO. Further research is needed to investigate the impact of SGLT2i therapy on acute and long-term changes in TMAO in cardiovascular cohorts.
IntroductionThe relationship between sodium glucose co-transporter 2 inhibitors (SGLT2i) and trimethylamine N-oxide (TMAO) following acute myocardial infarction (AMI) is not yet explored.MethodsIn this secondary analysis of the EMMY trial (ClinicalTrials.gov registration: NCT03087773), changes in serum TMAO levels were investigated in response to 26-week Empagliflozin treatment following an AMI compared to the standard post-MI treatment. Additionally, the association of TMAO changes with clinical risk factors and cardiorenal biomarkers was assessed.ResultsThe mean age of patients (N = 367) was 57 & PLUSMN; 9 years, 82% were males, and 14% had type 2 diabetes. In the Empagliflozin group, the median TMAO value was 2.62 & mu;mol/L (IQR: 1.81) at baseline, 3.74 & mu;mol/L (2.81) at 6 weeks, and 4.20 & mu;mol/L (3.14) at 26 weeks. In the placebo group, the median TMAO value was 2.90 & mu;mol/L (2.17) at baseline, 3.23 & mu;mol/L (1.90) at 6 weeks, and 3.35 & mu;mol/L (2.50) at 26 weeks. The serum TMAO levels increased significantly from baseline to week 6 (coefficient: 0.233; 95% confidence interval 0.149-0.317, p < 0.001) and week 26 (0.320, 0.236-0.405, p < 0.001). The average increase in TMAO levels over time (p(interaction) = 0.007) was significantly higher in the Empagliflozin compared to the Placebo group. Age was positively associated with TMAO, whereas eGFR and LVEF were negatively associated with TMAO.ConclusionsOur results are contrary to existing experimental studies that showed the positive impact of SGLT2i on TMAO precursors and cardiovascular events. Therefore, we recommend further research investigating the impact of SGLT2i therapy on acute and long-term changes in TMAO in cardiovascular cohorts.
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