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A larger brown fat volume and lower radiodensity are related to a greater cardiometabolic risk, especially in young men.
Acosta, Francisco M; Sanchez-Delgado, Guillermo; Martinez-Tellez, Borja; Osuna-Prieto, Francisco J; Mendez-Gutierrez, Andrea; Aguilera, Concepcion M; Gil, Angel; Llamas-Elvira, Jose M; Ruiz, Jonatan R.
Afiliação
  • Acosta FM; PROFITH 'PRO-moting FITness and Health Through Physical Activity' Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
  • Sanchez-Delgado G; Turku PET Centre, University of Turku, Turku, Finland.
  • Martinez-Tellez B; Turku PET Centre, Turku University Hospital, Turku, Finland.
  • Osuna-Prieto FJ; InFLAMES Research Flagship Center, University of Turku, Turku, Finland.
  • Mendez-Gutierrez A; PROFITH 'PRO-moting FITness and Health Through Physical Activity' Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
  • Aguilera CM; Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
  • Gil A; PROFITH 'PRO-moting FITness and Health Through Physical Activity' Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
  • Llamas-Elvira JM; Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands.
  • Ruiz JR; PROFITH 'PRO-moting FITness and Health Through Physical Activity' Research Group, Department of Physical and Sports Education, Sport and Health University Research Institute (iMUDS), Faculty of Sports Science, University of Granada, Granada, Spain.
Eur J Endocrinol ; 187(1): 171-183, 2022 Jul 01.
Article em En | MEDLINE | ID: mdl-36149276
Objectives: Brown adipose tissue (BAT) is important in the maintenance of cardiometabolic health in rodents. Recent reports appear to suggest the same in humans, although if this is true remains elusive partly because of the methodological bias that affected previous research. This cross-sectional work reports the relationships of cold-induced BAT volume, activity (peak standardized uptake, SUVpeak), and mean radiodensity (an inverse proxy of the triacylglycerols content) with the cardiometabolic and inflammatory profile of 131 young adults, and how these relationships are influenced by sex and body weight. Design: This is a cross-sectional study. Methods: Subjects underwent personalized cold exposure for 2 h to activate BAT, followed by static 18F-fluorodeoxyglucose PET-CT scanning to determine BAT variables. Information on cardiometabolic risk (CMR) and inflammatory markers was gathered, and a CMR score and fatty liver index (FLI) were calculated. Results: In men, BAT volume was positively related to homocysteine and liver damage markers concentrations (independently of BMI and seasonality) and the FLI (all P ≤ 0.05). In men, BAT mean radiodensity was negatively related to the glucose and insulin concentrations, alanine aminotransferase activity, insulin resistance, total cholesterol/HDL-C, LDL-C/HDL-C, the CMR score, and the FLI (all P ≤ 0.02). In women, it was only negatively related to the FLI (P < 0.001). These associations were driven by the results for the overweight and obese subjects. No relationship was seen between BAT and inflammatory markers (P > 0.05). Conclusions: A larger BAT volume and a lower BAT mean radiodensity are related to a higher CMR, especially in young men, which may support that BAT acts as a compensatory organ in states of metabolic disruption.
Assuntos

Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Doenças Cardiovasculares / Insulinas Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Adult / Female / Humans / Male Idioma: En Revista: Eur J Endocrinol Assunto da revista: ENDOCRINOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Espanha

Texto completo: 1 Bases de dados: MEDLINE Assunto principal: Doenças Cardiovasculares / Insulinas Tipo de estudo: Etiology_studies / Observational_studies / Prevalence_studies / Risk_factors_studies Limite: Adult / Female / Humans / Male Idioma: En Revista: Eur J Endocrinol Assunto da revista: ENDOCRINOLOGIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Espanha