CIRCULATING BRANCHED CHAIN AMINO ACIDS IN PATIENTS WITH CHRONIC HEART FAILURE AND TYPE 2 DIABETES MELLITUS

Author:

M.V. Kozhevnikova1ORCID,V.Yu. Zektser1ORCID,M.F. Petrukhnova1ORCID,A.V. Krivova1ORCID,S.A. Appolonova1ORCID

Affiliation:

1. I.M. Sechenov First Moscow State Medical University, Ministry of Health of Russia (Sechenov University), Moscow, Russian Federation

Abstract

The importance of the problem of chronic heart failure (CHF) is hard to overestimate: this syndrome is diagnosed in millions of patients around the world and its prevalence continues to grow. The proportion of patients suffering from carbohydrate metabolism disorders (CMD) is also steadily increasing. The close connection between carbohydrate metabolism disorders and the progression of CHF allowed such patients to be classified into a separate phenotype cluster - the “metabolic phenotype of CHF”. The pathophysiology of the “metabolic phenotype of CHF” is based on significant metabolic disorders, which determines the characteristic features of the metabolome of this cohort of patients. Therefore, the purpose of this work is to compare and evaluate the relationship between metabolites that occupy one of the most important places in the metabolic processes of the body - the levels of branched chain amino acids (BCAA) and the phenotypic characteristics of patients with CHF. The study included 218 patients: 133 patients of the main group suffering from CHF and having CMD; comparison group - 85 patients with CHF without CMD. The groups were comparable by gender (p=0,324) and age (p=0,936). The levels of BCAAs - leucine, isoleucine, valine - in the blood plasma of patients were assessed by high-performance liquid chromatography combined with mass spectrometry (HPLC-MS). Based on the results of the analysis, the following data were obtained: plasma levels of valine and leucine in patients with CHF and CMD were higher (p=0,022 and p<0,001, respectively) than in patients with CHF and normal carbohydrate metabolism. A direct relationship between the level of leucine + isoleucine and the concentration of glucose (r=0,3, p<0,001) and an inverse relationship between the plasma concentration of valine and the level of N-terminal propeptide of natriuretic hormone (NTproBNP) (r=-0,388, p<0,001) were found. It has been established that a high level of tissue insulin resistance in patients is associated with increased concentrations of BCAA. The results indicate the important role of BCAA in the pathogenesis of the “metabolic phenotype of CHF,” which requires further research in this direction.

Publisher

Technomed Holdings LLC

Reference9 articles.

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