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Published on: June 10, 2025
[THE ROLE OF MARKER FIBROSIS ST2 AND ANGIOTENZINOGEN GENE POLYMORPHISM IN HEART FAILURE PROGRESSING IN PATIENTS WITH
1SI "National Institute of Therapy named after L.T.Maloy NAMS of Ukraine", Ukraine.
Insights
Patients with heart failure with preserved ejection fraction (HFpEF) and type 2 diabetes (T2DM) carrying specific ATG gene variants (TT+MT) show higher ST2 levels and increased cardiovascular event risk. This highlights genetic factors in HFpEF progression.
Area of Science:
- Cardiology
- Genetics
- Metabolic Disorders
Background:
- Heart failure (HF) prognosis is poor, especially in subgroups like those with type 2 diabetes (T2DM).
- The M235T polymorphism in the angiotensinogen (AGT) gene (rs699) is linked to hypertension, coronary heart disease, atrial fibrillation, and HF risk.
- ST2 is an emerging biomarker for cardiac fibrosis.
Purpose of the Study:
- To investigate the role of the ST2 biomarker and AGT gene M235T polymorphism in chronic heart failure (CHF) progression.
- To assess their impact on adverse cardiovascular events in patients with T2DM.
Main Methods:
- Analysis of ST2 levels and AGT gene M235T polymorphism (rs699).
- Observation of cardiovascular events over 24 months in patients with HFpEF and T2DM.
- Comparison between different AGT genotypes (TT+MT vs. MM).
Main Results:
- Patients with HFpEF and T2DM with the TT+MT genotype exhibited higher ST2 levels.
- These patients also had a greater probability of adverse cardiovascular events within 24 months compared to MM genotype carriers.
Conclusions:
- The AGT TT+MT genotype is associated with elevated ST2 levels and increased cardiovascular risk in HFpEF patients with T2DM.
- ST2 and AGT M235T polymorphism are valuable indicators for predicting adverse outcomes in this patient subgroup.
Abstract:
Despite the progress in the treatment of HF, its prognosis remains disappointing primarily due to the fact that important subgroups of patients with HF are not sufficiently investigated. This also applies to patients with HF and background metabolic disorders, in particular, type 2 diabetes. It is known that the polymorphism of the rs699 marker of the M235T ATG gene is associated with a tendency to arterial hypertension, coronary heart disease and atrial fibrillation. A relationship was found between the polymorphism of M235T and the risk of HF development. One of the promising new biomarkers is the fibrosis marker ST2. The purpose of our study was to evaluate the role of the biomarker ST2 and the genetic polymorphism of the AT2 gene M235T in the progression of CHF and the development of adverse events in patients with concomitant type 2 diabetes. We found that patients with HFpEF and T2DM with ATG TT + MT genotype have a higher level of ST2 and a higher probability of unfavorable cardiovascular events during 24 months of observation compared with MM genotype carriers.
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