Subcutaneous and Epicardial Adipose Tissue Leptin Gene Expression in Coronary Artery Disease Patient

Полякова, Е. А.; Колодина, Д. А.; Miroshnikova, V. V.; Razgildina, N.; Bogdanova, Evdokia; Ляпина, Е. Н.; Беляева, О. Д.; Pchelina, Sofya; Беркович, О. А.; Баранова, Е. И.

doi:10.18705/2311-4495-2019-6-3-25-35

Cited by 4 publications

(2 citation statements)

References 43 publications

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“…This data is consistent with the data provided by other groups [44]. Polyakova et al showed that in men, regardless of the presence of coronary heart disease, the LEP expression in the EAT was significantly higher than the SAT [45]. Furthermore, the authors explain the observed differences by the predominance of men among patients with CAD, and the incidence of more severe atherosclerotic lesions of the coronary arteries in male patients [46].…”

Section: Discussionsupporting

confidence: 90%

Relationship between Epicardial and Coronary Adipose Tissue and the Expression of Adiponectin, Leptin, and Interleukin 6 in Patients with Coronary Artery Disease

Груздева

Dyleva

Белик

et al. 2022

JPM

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Adipose tissue (AT) is an endocrine and paracrine organ that synthesizes biologically active adipocytokines, which affect inflammation, fibrosis, and atherogenesis. Epicardial and perivascular fat depots are of great interest to researchers, owing to their potential effects on the myocardium and blood vessels. The aim of the study was to assess the expression and secretion of adipocytokine genes in the AT of patients with coronary artery disease (CAD) and patients with aortic or mitral valve replacement. This study included 84 patients with CAD and 50 patients with aortic or mitral valve replacement. Adipocytes were isolated from subcutaneous, epicardial (EAT), and perivascular AT (PVAT), and were cultured for 24 h. EAT exhibited the lowest level of adiponectin gene expression and secretion, regardless of nosology, and high expression levels of the leptin gene and interleukin-6 (IL-6). However, EAT adipocytes in patients with CAD were characterized by more pronounced changes in comparison with the group with heart defects. High leptin and IL-6 levels resulted in increased pro-inflammatory activity, as observed in both EAT and PVAT adipocytes, especially in individuals with CAD. Therefore, our results revealed the pathogenetic significance of alterations in the adipokine and cytokine status of adipocytes of EAT and PVAT in patients with CAD.

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Section: Discussionsupporting

confidence: 90%

Relationship between Epicardial and Coronary Adipose Tissue and the Expression of Adiponectin, Leptin, and Interleukin 6 in Patients with Coronary Artery Disease

Груздева

Dyleva

Белик

et al. 2022

JPM

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“…More recently, the ability of cardiomyocytes to express leptin and its receptors has been demonstrated, which is of clinical interest. Further, the high gene expression of leptin in the adipocyte culture of both groups is consistent with the data of other groups [29]. Polyakova et al showed that in men, regardless of the presence of coronary heart disease, the leptin gene expression in the EAT was signi cantly higher than the SAT [30].…”

Section: Discussionsupporting

confidence: 86%

Expression of adipocytokine genes and their content in various adipose tissue sites in patients with heart diseases

Груздева¹,

Dyleva

Белик

et al. 2020

Preprint

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Background Adipose tissue (AT) is an endocrine and paracrine organ that synthesizes biologically active adipocytokines, which affect inflammation, fibrosis, and atherogenesis. Epicardial and perivascular fat depots are of great interest owing to potential effects on the myocardium and blood vessels. Objective To assess expression and secretion of adipocytokine genes in adipose tissue in patients coronary artery disease (CAD) and patients with aortic or mitral valve replacement. Methods The study included 84 patients with CAD and 50 patients with aortic or mitral valve replacement. Adipocytes were isolated from subcutaneous (SAT), epicardial (EAT), and perivascular AT (PVAT) samples. Isolated adipocytes were cultured for 24 h after which, gene expression and secretion levels of selected adipokines and cytokines in the culture medium were determined. Results The study parameters differed depending on the adipose tissue location. EAT adipocytes in CAD patients were characterized by a pronounced imbalance in the adipokine system. EAT had the lowest adiponectin gene expression and secretion, regardless of nosology and high expression levels of the leptin gene, its receptor, and interleukin-6 (IL-6) were detected. High leptin and IL-6 levels resulted in increased pro-inflammatory activity, as observed in both EAT and PVAT adipocytes, especially in individuals with coronary artery disease. Conclusion The "protective" potential of adipose tissue depends on its location.

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Associations of adipocytokine expression and cardiovascular risk factors in stable coronary artery disease

et al. 2021

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Aim. To determine the expression of adiponectin, leptin and I interleukin-6 (IL-6) in subcutaneous, epicardial and perivascular adipose tissue, depending on the presence of cardiovascular risk factors.Material and methods. The study included 90 patients with stable coronary artery disease (CAD) who underwent coronary artery bypass grafting. Samples of adipose tissue were obtained during surgery. The levels of matrix ribonucleic acid (mRNA) of the studied adipocytokines were determined in the presence/absence of the main cardiovascular risk factors.Results. Differences in the expression of genes of the studied adipocytokines in different sex and age groups of patients were revealed, depending on the tissue belonging of adipocytes. Expression of adiponectin in the epicardial and perivascular adipose tissue (EАT and PVAT, respectively), as well as of leptin in the PVAT was less pronounced in men. However, the level of IL-6 mRNA in the subcutaneous adipose tissue (SAT) of men was three times higher than in women, and in the PVAT it was lower. The maximum expression of leptin and IL-6 in the EAT and PVAT was found in persons aged 50-59 years. The presence of dyslipidemia is associated with a decrease in the expression of adiponectin in the EAT, PVAT, and IL-6 in the PVAT. In patients with hypertension (HTN), there was a low level of adiponectin mRNA in the EAT against the background of high leptin levels in the EAT and IL-6 in SAT and EAT. In hypertension with a duration of more than 20 years, there was a decrease in adiponectin expression and an increase in leptin in all types of AT. In smokers, an increase in the expression of adiponectin in the SAT, EAT, PVAT and leptin in the SAT, EAT was found.Conclusion. Associations of traditional cardiovascular risk factors with imbalance of adipocytokines of local fat depots in patients with CAD were revealed. The detected imbalance is manifested by a decrease in the expression of cardioprotective adiponectin in the EAT, PVAT, an increase in leptin and IL-6, which is an unfavorable sign. The presence of such risk factors as male sex, age of 50-59 years, dyslipidemia and hypertension in patients can enhance atherogenesis and contribute to the further progression of CAD.

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Subcutaneous and Epicardial Adipose Tissue Leptin Gene Expression in Coronary Artery Disease Patient

Cited by 4 publications

References 43 publications

Relationship between Epicardial and Coronary Adipose Tissue and the Expression of Adiponectin, Leptin, and Interleukin 6 in Patients with Coronary Artery Disease

Relationship between Epicardial and Coronary Adipose Tissue and the Expression of Adiponectin, Leptin, and Interleukin 6 in Patients with Coronary Artery Disease

Expression of adipocytokine genes and their content in various adipose tissue sites in patients with heart diseases

Associations of adipocytokine expression and cardiovascular risk factors in stable coronary artery disease

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