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The role of adipogenic capacity and dysfunctional subcutaneous adipose tissue in the inheritance of type 2 diabetes mellitus: cross-sectional study
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SYSNO ASEP 0583338 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The role of adipogenic capacity and dysfunctional subcutaneous adipose tissue in the inheritance of type 2 diabetes mellitus: cross-sectional study Author(s) Šiklová, M. (CZ)
Šrámková, V. (CZ)
Koc, M. (CZ)
Krauzová, E. (CZ)
Čížková, T. (CZ)
Ondrůjová, B. (CZ)
Wilhelm, M. (CZ)
Varaliová, Z. (CZ)
Kuda, Ondřej (FGU-C) RID, ORCID, SAI
Neubert, J. (CZ)
Lambert, L. (CZ)
Elkalaf, M. (CZ)
Gojda, J. (CZ)
Rossmeislová, L. (CZ)Source Title Obesity - ISSN 1930-7381
Roč. 32, č. 3 (2024), s. 547-559Number of pages 13 s. Language eng - English Country US - United States Keywords insulin sensitivity ; visceral fat ; obesity ; adipose tissue OECD category Endocrinology and metabolism (including diabetes, hormones) R&D Projects LX22NPO5104 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FGU-C - RVO:67985823 UT WOS 001143165400001 EID SCOPUS 85182464885 DOI https://doi.org/10.1002/oby.23969 Annotation Objective: This study tested the hypothesis that limited subcutaneous adipose tissue (SAT) expansion represents a primary predisposition to the development of type 2 diabetes mellitus (T2DM), independent of obesity, and identified novel markers of SAT dysfunction in the inheritance of T2DM.Methods: First-degree relatives (FDR) of T2DM patients (n = 19) and control individuals (n = 19) without obesity (fat mass < 25%) were cross-sectionally compared. Body composition (bioimpedance, computed tomography) and insulin sensitivity (IS, oral glucose tolerance test, clamp) were measured. SAT obtained by needle biopsy was used to analyze adipocyte size, lipidome, mRNA expression, and inflammatory markers. Primary cultures of adipose precursors were analyzed for adipogenic capacity and metabolism.Results: Compared with control individuals, FDR individuals had lower IS and a higher amount of visceral fat. However, SAT-derived adipose precursors did not differ in their ability to proliferate and differentiate or in metabolic parameters (lipolysis, mitochondrial oxidation). In SAT of FDR individuals, lipidomic and mRNA expression analysis revealed accumulation of triglycerides containing polyunsaturated fatty acids and increased mRNA expression of lysyl oxidase (LOX). These parameters correlated with IS, visceral fat accumulation, and mRNA expression of inflammatory and cellular stress genes.Conclusions: The intrinsic adipogenic potential of SAT is not affected by a family history of T2DM. However, alterations in LOX mRNA and polyunsaturated fatty acids in triacylglycerols are likely related to the risk of developing T2DM independent of obesity. Workplace Institute of Physiology Contact Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400 Year of Publishing 2025 Electronic address https://doi.org/10.1002/oby.23969
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