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Iida T, Ueda Y, Tsukada H, Fukumoto D, Hamaoka T. Brown adipose tissue evaluation using water and triglyceride as indices by diffuse reflectance spectroscopy. JOURNAL OF BIOPHOTONICS 2024; 17:e202300183. [PMID: 37885352 DOI: 10.1002/jbio.202300183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 10/06/2023] [Accepted: 10/24/2023] [Indexed: 10/28/2023]
Abstract
Brown adipose tissue (BAT) is related to lipid and glucose metabolism, and BAT evaluation is expected to contribute to disease prevention and treatment. We aimed to establish a BAT evaluation method using simple and non-invasive diffuse reflectance spectroscopy (DRS). We acquired diffuse reflectance spectra of BAT using DRS from rats with cold stimulation and analyzed the second-derivative spectra. To predict the amount of triglyceride in BAT from the second-derivative spectra, partial least-squares regression analysis was performed, and we examined whether BAT weight can be predicted from the amount of triglyceride by single regression analysis. By focusing on changes in the amount of triglyceride in BAT with cold stimulation, it was suggested that this amount could be predicted spectroscopically, and the predicted amount of triglyceride could be used to estimate the BAT weight with cold stimulation. If these results can be translated into humans, they may contribute to preventing metabolic disorders.
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Affiliation(s)
- Tomomi Iida
- Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu, Shizuoka, Japan
| | - Yukio Ueda
- Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu, Shizuoka, Japan
| | - Hideo Tsukada
- Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu, Shizuoka, Japan
| | - Dai Fukumoto
- Central Research Laboratory, Hamamatsu Photonics K.K., Hamamatsu, Shizuoka, Japan
| | - Takafumi Hamaoka
- Department of Sports Medicine for Health Promotion, Tokyo Medical University, Tokyo, Japan
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2
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Jurado-Fasoli L, Sanchez-Delgado G, Alcantara JMA, Acosta FM, Sanchez-Sanchez R, Labayen I, Ortega FB, Martinez-Tellez B, Ruiz JR. Adults with metabolically healthy overweight or obesity present more brown adipose tissue and higher thermogenesis than their metabolically unhealthy counterparts. EBioMedicine 2024; 100:104948. [PMID: 38184936 PMCID: PMC10808934 DOI: 10.1016/j.ebiom.2023.104948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/13/2023] [Accepted: 12/18/2023] [Indexed: 01/09/2024] Open
Abstract
BACKGROUND There is a subset of individuals with overweight/obesity characterized by a lower risk of cardiometabolic complications, the so-called metabolically healthy overweight/obesity (MHOO) phenotype. Despite the relatively higher levels of subcutaneous adipose tissue and lower visceral adipose tissue observed in individuals with MHOO than individuals with metabolically unhealthy overweight/obesity (MUOO), little is known about the differences in brown adipose tissue (BAT). METHODS This study included 53 young adults (28 women) with a body mass index (BMI) ≥25 kg/m2 which were classified as MHOO (n = 34) or MUOO (n = 19). BAT was assessed through a static 18F-FDG positron emission tomography/computed tomography scan after a 2-h personalized cooling protocol. Energy expenditure, skin temperature, and thermal perception were assessed during a standardized mixed meal test (3.5 h) and a 1-h personalized cold exposure. Body composition was assessed by dual-energy x-ray absorptiometry, energy intake was determined during an ad libitum meal test and dietary recalls, and physical activity levels were determined by a wrist-worn accelerometer. FINDINGS Participants with MHOO presented higher BAT volume (+124%, P = 0.008), SUVmean (+63%, P = 0.001), and SUVpeak (+133%, P = 0.003) than MUOO, despite having similar BAT mean radiodensity (P = 0.354). In addition, individuals with MHOO exhibited marginally higher meal-induced thermogenesis (P = 0.096) and cold-induced thermogenesis (+158%, P = 0.050). Moreover, MHOO participants showed higher supraclavicular skin temperature than MUOO during the first hour of the postprandial period and during the cold exposure, while no statistically significant differences were observed in other skin temperature parameters. We observed no statistically significant differences between MHOO and MUOO in thermal perception, body composition, outdoor ambient temperature exposure, resting metabolic rate, energy intake, or physical activity levels. INTERPRETATION Adults with MHOO present higher BAT volume and activity than MUOO. The higher meal- and cold-induced thermogenesis and cold-induced supraclavicular skin temperature are compatible with a higher BAT activity. Overall, these results suggest that BAT presence and activity might be linked to a healthier phenotype in young adults with overweight or obesity. FUNDING See acknowledgments section.
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Affiliation(s)
- Lucas Jurado-Fasoli
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; Department of Physiology, Faculty of Medicine, University of Granada, Granada, Andalucía, Spain.
| | - Guillermo Sanchez-Delgado
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; Department of Medicine, Division of Endocrinology, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain
| | - Juan M A Alcantara
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Department of Health Sciences, "Institute for Sustainability & Food Chain Innovation", Public University of Navarre, Pamplona, Spain; Navarra Institute for Health Research, Pamplona, Spain
| | - Francisco M Acosta
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; Turku PET Centre, University of Turku, Turku, Finland; Turku PET Centre, Turku University Hospital, Turku, Finland; InFLAMES Research Flagship, University of Turku, 20014, Turku, Finland; MediCity/PET Preclinical Laboratory, University of Turku, Turku PET Centre, Turku, Finland
| | - Rocio Sanchez-Sanchez
- Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain; Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Idoia Labayen
- CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Department of Health Sciences, "Institute for Sustainability & Food Chain Innovation", Public University of Navarre, Pamplona, Spain; Navarra Institute for Health Research, Pamplona, Spain
| | - Francisco B Ortega
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Faculty of Sport and Health Sciences, University of Jyväskylä, Jyväskylä, Finland
| | - Borja Martinez-Tellez
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Department of Education, Faculty of Education Sciences and SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería, Spain
| | - Jonatan R Ruiz
- Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), University of Granada, Carretera de Alfacar s/n, 18071, Granada, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada, Spain; Instituto de Investigación Biosanitaria, Ibs.Granada, Granada, Spain.
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3
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Maushart CI, Sun W, Othman A, Ghosh A, Senn JR, Fischer JGW, Madoerin P, Loeliger RC, Benz RM, Takes M, Zech CJ, Chirindel A, Beuschlein F, Reincke M, Wild D, Bieri O, Zamboni N, Wolfrum C, Betz MJ. Effect of high-dose glucocorticoid treatment on human brown adipose tissue activity: a randomised, double-blinded, placebo-controlled cross-over trial in healthy men. EBioMedicine 2023; 96:104771. [PMID: 37659283 PMCID: PMC10483510 DOI: 10.1016/j.ebiom.2023.104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/07/2023] [Accepted: 08/08/2023] [Indexed: 09/04/2023] Open
Abstract
BACKGROUND Glucocorticoids (GCs) are widely applied anti-inflammatory drugs that are associated with adverse metabolic effects including insulin resistance and weight gain. Previous research indicates that GCs may negatively impact brown adipose tissue (BAT) activity in rodents and humans. METHODS We performed a randomised, double-blinded cross-over trial in 16 healthy men (clinicaltrials.govNCT03269747). Participants received 40 mg of prednisone per day for one week or placebo. After a washout period of four weeks, participants crossed-over to the other treatment arm. Primary endpoint was the increase in resting energy expenditure (EE) in response to a mild-cold stimulus (cold-induced thermogenesis, CIT). Secondary outcomes comprised mean 18F-FDG uptake into supraclavicular BAT (SUVmean) as determined by FDG-PET/CT, volume of the BAT depot as well as fat content determined by MRI. The plasma metabolome and the transcriptome of supraclavicular BAT and of skeletal muscle biopsies after each treatment period were analysed. FINDINGS Sixteen participants were recruited to the trial and completed it successfully per protocol. After prednisone treatment resting EE was higher both during warm and cold conditions. However, CIT was similar, 153 kcal/24 h (95% CI 40-266 kcal/24 h) after placebo and 186 kcal/24 h (95% CI 94-277 kcal/24 h, p = 0.38) after prednisone. SUVmean of BAT after cold exposure was not significantly affected by prednisone (3.36 g/ml, 95% CI 2.69-4.02 g/ml, vs 3.07 g/ml, 95% CI 2.52-3.62 g/ml, p = 0.28). Results of plasma metabolomics and BAT transcriptomics corroborated these findings. RNA sequencing of muscle biopsies revealed higher expression of genes involved in calcium cycling. No serious adverse events were reported and adverse events were evenly distributed between the two treatments. INTERPRETATION Prednisone increased EE in healthy men possibly by altering skeletal muscle calcium cycling. Cold-induced BAT activity was not affected by GC treatment, which indicates that the unfavourable metabolic effects of GCs are independent from thermogenic adipocytes. FUNDING Grants from Swiss National Science Foundation (PZ00P3_167823), Bangerter-Rhyner Foundation and from Nora van der Meeuwen-Häfliger Foundation to MJB. A fellowship-grant from the Swiss National Science Foundation (SNF211053) to WS. Grants from German Research Foundation (project number: 314061271-TRR 205) and Else Kröner-Fresenius (grant support 2012_A103 and 2015_A228) to MR.
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Affiliation(s)
- Claudia Irene Maushart
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel and University of Basel, Basel, Switzerland.
| | - Wenfei Sun
- Institute of Food, Nutrition, and Health, ETH Zurich, Schwerzenbach, Switzerland.
| | - Alaa Othman
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland.
| | - Adhideb Ghosh
- Institute of Food, Nutrition, and Health, ETH Zurich, Schwerzenbach, Switzerland; Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich, Switzerland.
| | - Jaël Rut Senn
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel and University of Basel, Basel, Switzerland.
| | - Jonas Gabriel William Fischer
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel and University of Basel, Basel, Switzerland.
| | - Philipp Madoerin
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Rahel Catherina Loeliger
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel and University of Basel, Basel, Switzerland.
| | - Robyn Melanie Benz
- Functional Genomics Center Zurich, ETH Zurich and University of Zurich, Zurich, Switzerland.
| | - Martin Takes
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Christoph Johannes Zech
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Alin Chirindel
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Felix Beuschlein
- Department of Endocrinology, Diabetology and Clinical Nutrition, University Hospital Zurich (USZ) and University Zurich (UZH), Zurich, Switzerland; Department of Medicine IV, University Hospital, LMU Munich, Munich, Germany.
| | - Martin Reincke
- Department of Medicine IV, University Hospital, LMU Munich, Munich, Germany.
| | - Damian Wild
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Oliver Bieri
- Department of Radiology and Nuclear Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.
| | - Nicola Zamboni
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland.
| | - Christian Wolfrum
- Institute of Food, Nutrition, and Health, ETH Zurich, Schwerzenbach, Switzerland.
| | - Matthias Johannes Betz
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel and University of Basel, Basel, Switzerland.
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Lemaitre M, Christin-Maitre S, Kerlan V. Polycystic ovary syndrome and adipose tissue. ANNALES D'ENDOCRINOLOGIE 2023; 84:308-315. [PMID: 36623807 DOI: 10.1016/j.ando.2022.11.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 11/30/2022] [Indexed: 01/09/2023]
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrine metabolic disorder in women of reproductive age. Typically, it is associated with ovulatory dysfunction: dysovulation or anovulation, and symptoms of hyperandrogenism. It incurs risk of metabolic disorders such as diabetes, dyslipidemia and fatty liver. As a key endocrine organ in metabolic homeostasis, adipose tissue is often implicated in these complications. Studies of white adipose tissue (WAT) in PCOS have focused on the mechanism of insulin resistance in this tissue. Clinically, abnormalities in WAT distribution are seen, with decreased waist-to-hip ratio and increased ratio of adipose to lean mass. Such abnormalities are greater when total circulating androgens are elevated. At tissue level, white adipocyte hyperplasia occurs, along with infiltration of macrophages. Secretion of adipokines, cytokines and chemo-attractant proteins is increased in a pro-inflammatory manner, leading to reduced insulin sensitivity via alteration of glucose transporters, and hence decreased glucose uptake. The kinetics of non-esterified fatty acids (or free fatty acids) is also altered, leading to lipotoxicity. In recent years, brown adipose tissue (BAT) has been studied in women with PCOS. Although abundance is low in the body, BAT appears to play a significant role in energy expenditure and metabolic parameters. Both supra-clavicular skin temperature, which reflects BAT activity, and BAT mass are reduced in women with PCOS. Moreover, BAT mass and body mass index (BMI) are inversely correlated in patients. In the adipocyte, increased total circulating androgen levels reduce expression of uncoupling protein 1 (UCP1), a key protein in the brown adipocyte, leading to reduced biogenesis and mitochondrial respiration and hence a reduction in post-prandial thermogenesis. BAT is currently being investigated as a possible new therapeutic application.
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Affiliation(s)
- Madleen Lemaitre
- CHU Lille, Department of Diabetology, Endocrinology, Metabolism and Nutrition, Lille University Hospital, 59000 Lille, France.
| | - Sophie Christin-Maitre
- Center for rare endocrine diseases of growth and development, ERN-HCP, Sorbonne University, Endocrinology, Diabetology and Reproductive Medicine, Saint-Antoine Hospital, AP-HP, 75012 Paris, France
| | - Véronique Kerlan
- CHU Brest, Department of Diabetology and Endocrinology, Brest University Hospital, 29200 Brest, France
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5
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Osuna-Prieto FJ, Acosta FM, Perez de Arrilucea Le Floc’h UA, Riquelme-Gallego B, Merchan-Ramirez E, Xu H, De La Cruz-Márquez JC, Amaro-Gahete FJ, Llamas-Elvira JA, Triviño-Ibáñez EM, Segura-Carretero A, Ruiz JR. Dihydrocapsiate does not increase energy expenditure nor fat oxidation during aerobic exercise in men with overweight/obesity: a randomized, triple-blinded, placebo-controlled, crossover trial. J Int Soc Sports Nutr 2022; 19:417-436. [PMID: 35875695 PMCID: PMC9302013 DOI: 10.1080/15502783.2022.2099757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Background Prior evidence suggests that capsinoids ingestion may increase resting energy expenditure (EE) and fat oxidation (FATox), yet whether they can modulate those parameters during exercise conditions remains poorly understood. We hypothesized that dihydrocapsiate (DHC) ingestion would increase EE and specifically FATox during an acute bout of aerobic exercise at FATmax intensity (the intensity that elicits maximal fat oxidation during exercise [MFO]) in men with overweight/obesity. Since FATmax and MFO during aerobic exercise appear to be indicators of metabolic flexibility, whether DHC has an impact on FATox in this type of population is of clinical interest. Methods A total of 24 sedentary men (age = 40.2 ± 9.2 years-old; body mass index = 31.6 ± 4.5 kg/m2 [n = 11 overweight, n = 13 obese]) participated in this randomized, triple-blinded, placebo-controlled, crossover trial (registered under ClinicalTrials.gov Identifier no. NCT05156697). On the first day, participants underwent a submaximal exercise test on a cycle ergometer to determine their MFO and FATmax intensity during exercise. After 72 hours had elapsed, the participants returned on 2 further days (≥ 72 hours apart) and performed a 60 min steady-state exercise bout (i.e. cycling at their FATmax, constant intensity) after ingesting either 12 mg of DHC or placebo; these conditions were randomized. Respiratory gas exchange was monitored by indirect calorimetry. Serum marker concentrations (i.e. glucose, triglycerides, non-esterified fatty acids (NEFAs), skin temperature, thermal perception, heart rate, and perceived fatigue) were assessed. Results There were no significant differences (P > 0.05) between DHC and placebo conditions in the EE and FATox during exercise. Similarly, no significant changes were observed in glucose, triglycerides, or NEFAs serum levels, neither in the skin temperature nor thermal perception across conditions. Heart rate and perceived fatigue did not differ between conditions. Conclusions DHC supplementation does not affect energy metabolism during exercise in men with overweight/obesity.
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Affiliation(s)
- Francisco J. Osuna-Prieto
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Department of Analytical Chemistry, University of Granada, Granada, Spain
- Research and Development of Functional Food Center (CIDAF), Granada, Spain
| | - Francisco M. Acosta
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Turku PET Centre, University of Turku, Turku, Finland
- Turku PET Centre, Turku University Hospital, Turku, Finland
| | - Unai A. Perez de Arrilucea Le Floc’h
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Blanca Riquelme-Gallego
- Department of Nursing, Faculty of Health Sciences, University of Granada, Granada, Spain
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
- CIBER of Epidemiology and Public Health (CIBERESP), Carlos III Institute of Health, Madrid, Spain
| | - Elisa Merchan-Ramirez
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Huiwen Xu
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Juan Carlos De La Cruz-Márquez
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
| | - Francisco J. Amaro-Gahete
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
- Department of Physiology, Faculty of Medicine, EFFECTS-262 Research group, University of Granada, Granada, Spain
| | - Jose A. Llamas-Elvira
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
- Department of Nuclear Medicine. Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Eva M. Triviño-Ibáñez
- Instituto de Investigación Biosanitaria de Granada (ibs.GRANADA), Granada, Spain
- Department of Nuclear Medicine. Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, University of Granada, Granada, Spain
- Research and Development of Functional Food Center (CIDAF), Granada, Spain
| | - Jonatan R Ruiz
- Department of Physical and Sports Education, Faculty of Sports Science, PROFITH “PRO-moting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), University of Granada, Granada, Spain
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6
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Straat ME, Martinez-Tellez B, Sardjoe Mishre A, Verkleij MMA, Kemmeren M, Pelsma ICM, Alcantara JMA, Mendez-Gutierrez A, Kooijman S, Boon MR, Rensen PCN. Cold-Induced Thermogenesis Shows a Diurnal Variation That Unfolds Differently in Males and Females. J Clin Endocrinol Metab 2022; 107:1626-1635. [PMID: 35176767 PMCID: PMC9113803 DOI: 10.1210/clinem/dgac094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Indexed: 11/21/2022]
Abstract
CONTEXT Cold exposure mobilizes lipids to feed thermogenic processes in organs, including brown adipose tissue (BAT). In rodents, BAT metabolic activity exhibits a diurnal rhythm, which is highest at the start of the wakeful period. OBJECTIVE We investigated whether cold-induced thermogenesis displays diurnal variation in humans and differs between the sexes. METHODS This randomized crossover study included 24 young and lean male (n = 12) and female (n = 12) participants who underwent 2.5-hour personalized cooling using water-perfused mattresses in the morning (7:45 am) and evening (7:45 pm), with 1 day in between. We measured energy expenditure (EE) and supraclavicular skin temperature in response to cold exposure. RESULTS In males, cold-induced EE was higher in the morning than in the evening (+54% ± 10% vs +30% ± 7%; P = 0.05) but did not differ between morning and evening in females (+37% ± 9% vs +30% ± 10%; P = 0.42). Only in males, supraclavicular skin temperature upon cold increased more in morning than evening (+0.2 ± 0.1 °C vs -0.2 ± 0.2 °C; P = 0.05). In males, circulating free fatty acid (FFA) levels were increased after morning cold exposure, but not evening (+90% ± 18% vs +9% ± 8%; P < 0.001). In females, circulating FFA (+94% ± 21% vs +20% ± 5%; P = 0.006), but also triglycerides (+42% ± 5% vs +29% ± 4%, P = 0.01) and cholesterol levels (+17% ± 2% vs 11% ± 2%; P = 0.05) were more increased after cold exposure in morning than in evening. CONCLUSION Cold-induced thermogenesis is higher in morning than evening in males; however, lipid metabolism is more modulated in the morning than the evening in females.
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Affiliation(s)
- Maaike E Straat
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Borja Martinez-Tellez
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Aashley Sardjoe Mishre
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Department of Radiology, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Magdalena M A Verkleij
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Mirjam Kemmeren
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Iris C M Pelsma
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Juan M A Alcantara
- PROFITH “PROmoting FITness and Health Through Physical Activity” Research Group, Sport and Health University Research Institute (iMUDS), Department of Physical and Sports Education, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Andrea Mendez-Gutierrez
- Department of Biochemistry and Molecular Biology II, “José Mataix Verdú” Institute of Nutrition and Food Technology, Center of Biomedical Research, University of Granada, Granada, Spain
- Biohealth Research Institute in Granada (ibs.GRANADA), Granada, Spain
- CIBER Fisiopatología de la Obesidad y la Nutrición (CIBEROBN), Madrid, Spain
| | - Sander Kooijman
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Mariëtte R Boon
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
| | - Patrick C N Rensen
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
- Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, ZA, Leiden, the Netherlands
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7
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Maushart CI, Senn JR, Loeliger RC, Siegenthaler J, Bur F, Fischer JGW, Betz MJ. Resting Energy Expenditure and Cold-induced Thermogenesis in Patients With Overt Hyperthyroidism. J Clin Endocrinol Metab 2022; 107:450-461. [PMID: 34570185 PMCID: PMC8764338 DOI: 10.1210/clinem/dgab706] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Indexed: 11/19/2022]
Abstract
CONTEXT Thyroid hormone (TH) is crucial for the adaptation to cold. OBJECTIVE To evaluate the effect of hyperthyroidism on resting energy expenditure (REE), cold-induced thermogenesis (CIT) and changes in body composition and weight. METHODS This was a prospective cohort study at the endocrine outpatient clinic of a tertiary referral center. Eighteen patients with overt hyperthyroidism were included. We measured REE during hyperthyroidism, after restoring euthyroid TH levels and after 3 months of normal thyroid function. In 14 of the 18 patients, energy expenditure (EE) was measured before and after a mild cold exposure of 2 hours and CIT was the difference between EEcold and EEwarm. Skin temperatures at 8 positions were recorded during the study visits. Body composition was assessed by dual X-ray absorption. RESULTS Free thyroxine (fT4) and free triiodothyronine (fT3) decreased significantly over time (fT4, P = .0003; fT3, P = .0001). REE corrected for lean body mass (LBM) decreased from 42 ± 6.7 kcal/24 hour/kg LBM in the hyperthyroid to 33 ± 4.4 kcal/24 hour/kg LBM (-21%, P < .0001 vs hyperthyroid) in the euthyroid state and 3 months later to 33 ± 5.2 kcal/24 hour/kg LBM (-21%, P = .0022 vs hyperthyroid, overall P < .0001). fT4 (P = .0001) and fT3 (P < 0.0001) were predictors of REE. CIT did not change from the hyperthyroid to the euthyroid state (P = .96). Hyperthyroidism led to increased skin temperature at warm ambient conditions but did not alter core body temperature, nor skin temperature after cold exposure. Weight regain and body composition were not influenced by REE and CIT during the hyperthyroid state. CONCLUSION CIT is not increased in patients with overt hyperthyroidism.
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Affiliation(s)
- Claudia I Maushart
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Jaël R Senn
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Rahel C Loeliger
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Judith Siegenthaler
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Fabienne Bur
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Jonas G W Fischer
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
| | - Matthias J Betz
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- Correspondence: Matthias Betz, Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Petersgraben 4, CH-4031 Basel, Switzerland. E-mail:
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8
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Senn JR, Löliger RC, Fischer JGW, Bur F, Maushart CI, Betz MJ. Acute effect of propranolol on resting energy expenditure in hyperthyroid patients. Front Endocrinol (Lausanne) 2022; 13:1026998. [PMID: 36743920 PMCID: PMC9892445 DOI: 10.3389/fendo.2022.1026998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 12/06/2022] [Indexed: 01/20/2023] Open
Abstract
OBJECTIVE Hyperthyroidism is a common endocrine disorder which leads to higher resting energy expenditure (REE). Increased activity of brown adipose tissue (BAT) contributes to elevated REE in hyperthyroid patients. For rapid control of hyperthyroid symptoms, the non-selective β-blocker propranolol is widely used. While, long-term treatment with propranolol reduces REE it is currently unclear whether it can also acutely diminish REE. DESIGN In the present prospective interventional trial we investigated the effect of propranolol on REE in hyperthyroid patients. METHODS Nineteen patients with overt primary hyperthyroidism were recruited from the endocrine outpatient clinic. REE was measured by indirect calorimetry before and after an acute dose of 80mg propranolol and during a control period, respectively. Additionally, skin temperature was recorded at eleven predefined locations during each study visit, vital signes and heart rate (HR) were measured before and after administration of propranolol. RESULTS Mean REE decreased slightly after acute administration of 80mg propranolol (p= 0.03) from 1639 ± 307 kcal/24h to 1594 ± 283 kcal/24h. During the control visit REE did not change significantly. HR correlated significantly with the level of free T3 (R2 = 0.38, p=0.029) free T4 (R2 = 0.39, p=0.026). HR decreased 81 ± 12 bpm to 67 ± 7.6 bpm 90 minutes after oral administration of propranolol (p<0.0001). Skin temperature did not change after propranolol intake. CONCLUSIONS In hyperthyroid patients a single dose of propranolol reduced heart rate substantially but REE diminished only marginally probably due to reduced myocardial energy consumption. Our data speak against a relevant contribution of BAT to the higher REE in hyperthyroidism. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, identifier (NCT03379181).
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Affiliation(s)
- Jaël Rut Senn
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Rahel Catherina Löliger
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Jonas Gabriel William Fischer
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Fabienne Bur
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Claudia Irene Maushart
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- Faculty of Medicine, University of Basel, Basel, Switzerland
| | - Matthias Johannes Betz
- Department of Endocrinology, Diabetes and Metabolism, University Hospital Basel, Basel, Switzerland
- *Correspondence: Matthias Johannes Betz,
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9
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Law JM, Morris DE, Robinson LJ, Symonds ME, Budge H. Semi-automated analysis of supraclavicular thermal images increases speed of brown adipose tissue analysis without increasing variation in results. Curr Res Physiol 2021; 4:177-182. [PMID: 34746836 PMCID: PMC8562194 DOI: 10.1016/j.crphys.2021.07.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 04/22/2021] [Accepted: 07/07/2021] [Indexed: 12/03/2022] Open
Abstract
Interest in brown adipose tissue remains high a decade after it was determined to be present outside of the neonatal period. In vivo imaging, however, has remained a challenge due to the lack of a imaging modality suitable for large healthy-volunteer studies, post-prandial investigations and vulnerable groups, such as children. Infrared thermography is increasingly accepted as a valid, non-invasive and flexible alternative but there is a wide approach to analysis between different groups. Defining the region of interest with anatomical borders rather than using a simple polygon may have advantages in terms of consistency but makes image analysis slower, limiting some applications. Our novel semi-automated method, using a custom-built graphical user interface, allows an 86% improvement in speed of image analysis (54.9 (38.3–71.4) seconds/image) without increases in variation between analysers or with repeated analysis. The improved efficiency demonstrated makes feasible larger studies, longer imaging periods or increased image acquisition frequency, providing an opportunity to study novel features of brown adipose tissue function. Brown adipose tissue is a key heat-generating tissue but is difficult to measure. Thermal imaging can measure brown adipose tissue response without radiation. A semi-automated approach increases image analysis efficiency. Thermal video analysis and imaging over longer periods is now feasible.
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Affiliation(s)
- James M Law
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, University of Nottingham, United Kingdom
| | - David E Morris
- Bioengineering Research Group, Faculty of Engineering, University of Nottingham, United Kingdom
| | - Lindsay J Robinson
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, University of Nottingham, United Kingdom
| | - Michael E Symonds
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, University of Nottingham, United Kingdom.,Nottingham Digestive Disease Centre and Biomedical Research Centre, School of Medicine, University of Nottingham, NG7 2UH, United Kingdom
| | - Helen Budge
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, University of Nottingham, United Kingdom
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10
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Søberg S, Löfgren J, Philipsen FE, Jensen M, Hansen AE, Ahrens E, Nystrup KB, Nielsen RD, Sølling C, Wedell-Neergaard AS, Berntsen M, Loft A, Kjær A, Gerhart-Hines Z, Johannesen HH, Pedersen BK, Karstoft K, Scheele C. Altered brown fat thermoregulation and enhanced cold-induced thermogenesis in young, healthy, winter-swimming men. CELL REPORTS MEDICINE 2021; 2:100408. [PMID: 34755128 PMCID: PMC8561167 DOI: 10.1016/j.xcrm.2021.100408] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 07/13/2021] [Accepted: 09/17/2021] [Indexed: 12/18/2022]
Abstract
The Scandinavian winter-swimming culture combines brief dips in cold water with hot sauna sessions, with conceivable effects on body temperature. We study thermogenic brown adipose tissue (BAT) in experienced winter-swimming men performing this activity 2–3 times per week. Our data suggest a lower thermal comfort state in the winter swimmers compared with controls, with a lower core temperature and absence of BAT activity. In response to cold, we observe greater increases in cold-induced thermogenesis and supraclavicular skin temperature in the winter swimmers, whereas BAT glucose uptake and muscle activity increase similarly to those of the controls. All subjects demonstrate nocturnal reduction in supraclavicular skin temperature, whereas a distinct peak occurs at 4:30–5:30 a.m. in the winter swimmers. Our data leverage understanding of BAT in adult human thermoregulation, suggest both heat and cold acclimation in winter swimmers, and propose winter swimming as a potential strategy for increasing energy expenditure. Winter swimmers have a lower core temperature at a thermal comfort state than controls Winter swimmers had no BAT glucose uptake at a thermal comfort state Winter swimmers have higher cold-induced thermogenesis than control subjects Human supraclavicular skin temperature varies with a diurnal rhythm
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Affiliation(s)
- Susanna Søberg
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Johan Löfgren
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Frederik E Philipsen
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Michal Jensen
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Adam E Hansen
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Esben Ahrens
- Department of Neurophysiology, Rigshospitalet, Copenhagen 2100, Denmark
| | - Kristin B Nystrup
- Department of Neuroanaesthesiology, Rigshospitalet, Copenhagen 2100, Denmark
| | - Rune D Nielsen
- Department of Neuroanaesthesiology, Rigshospitalet, Copenhagen 2100, Denmark
| | - Christine Sølling
- Department of Neuroanaesthesiology, Rigshospitalet, Copenhagen 2100, Denmark
| | - Anne-Sophie Wedell-Neergaard
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Marianne Berntsen
- Department of Neuroanaesthesiology, Rigshospitalet, Copenhagen 2100, Denmark
| | - Annika Loft
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Andreas Kjær
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Zachary Gerhart-Hines
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
| | - Helle H Johannesen
- Department of Clinical Physiology, Nuclear Medicine & PET, and Cluster for Molecular Imaging, Rigshospitalet and University of Copenhagen, Copenhagen 2100, Denmark
| | - Bente K Pedersen
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark
| | - Kristian Karstoft
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark.,Department of Clinical Pharmacology, Bispebjerg Hospital, Copenhagen 2400, Denmark
| | - Camilla Scheele
- The Center of Inflammation and Metabolism and the Center for Physical Activity Research, Rigshospitalet, University of Copenhagen, Copenhagen 2100, Denmark.,Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2200, Denmark
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11
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Diurnal variations of cold-induced thermogenesis in young, healthy adults: A randomized crossover trial. Clin Nutr 2021; 40:5311-5321. [PMID: 34536639 DOI: 10.1016/j.clnu.2021.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/04/2021] [Accepted: 08/16/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Harnessing cold-induced thermogenesis (CIT) and brown adipose tissue (BAT) activity has been proposed as a means of counteracting a positive energy balance, and thus of combating obesity and its related comorbidities. However, it has remained unclear whether CIT and BAT activity show diurnal variation in humans - knowledge that might allow treatments based on these factors to be time-optimized. METHODS A randomized crossover experiment was designed to examine whether CIT shows morning/evening variation in young, healthy adults (n = 14, 5 women). On the first experimental day, subjects' shivering thresholds were determined following a cooling protocol. After ≈96 h had elapsed, the subjects then returned on two further days (approx. 48 h apart) at 08:00 h or 18:00 in random order. On both the latter days, the resting energy expenditure (REE) was measured before the subjects underwent personalized cold exposure (i.e., according to their shivering threshold). CIT was then assessed for 60 min by indirect calorimetry. In an independent cross-sectional study (n = 133, 88 women), subjects came to the laboratory between 8:00 and 18:00 h and their BAT 18F-fluordeoxyglucose (18F-FDG) uptake was assessed after personalized cold stimulation. RESULTS Both the REE and CIT were similar in the morning and evening (all P > 0.05). Indeed, 60 min of personalized-mild cold exposure in the morning or evening elicited a similar change in energy expenditure (16.8 ± 12.8 vs. 15.7 ± 15.1% increase above REE, P = 0.72). BAT 18F-FDG uptake was also similar in the morning, evening and afternoon (all P > 0.05). CONCLUSION CIT does not appear to show morning/evening variation in young healthy adults, with the current study design and methodology. BAT 18F-FDG uptake appears not to change across the day either, although experiments with a within-subject study design are needed to confirm these findings. Registered under ClinicalTrials.gov Identifier no. NCT02365129.
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12
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Law JM, Morris DE, Robinson L, Randell T, Denvir L, Symonds ME, Budge H. Reduced brown adipose tissue-associated skin temperature following cold stimulation in children and adolescents with type 1 diabetes. Pediatr Diabetes 2021; 22:407-416. [PMID: 33252166 DOI: 10.1111/pedi.13163] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Revised: 11/15/2020] [Accepted: 11/17/2020] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Brown adipose tissue (BAT) is essential to maintain body temperature. Its ability to convert chemical energy in glucose and free fatty acids to heat is conferred by a unique protein, UCP-1. BAT activity is greatest in children and adolescents, declining through adulthood. Blood glucose concentrations outside the normal nondiabetic range are common in type 1 diabetes and hyperglycaemia leads to insulin resistance in muscle and white adipose tissue, but whether this applies to BAT, is not known. METHOD To investigate the effect of type 1 diabetes on BAT activity, we measured the supraclavicular temperature of 20 children with type 1 diabetes and compared them to 20 age-matched controls, using infrared thermography. RESULTS The diabetes group had lower stimulated supraclavicular temperatures (diabetes group: 35.03 (34.76-35.30)°C; control group: 35.42 (35.16-35.69)°C; p = 0.037) and a reduced response in relative temperature following cold stimulation, after adjusting for BMI (diabetes group: 0.11 (0.03-0.18)°C; control group: 0.22 (0.15-0.29)°C; p = 0.034). In the diabetes group, there was no association between glycaemic measures and supraclavicular temperatures, but the method of insulin delivery may significantly affect the change in supraclavicular temperature with stimulation (injections: 0.01 (-0.07-0.09)°C; pump: 0.15 (0.04-0.26)°C; p = 0.028). CONCLUSIONS While further work is needed to better understand the glucose-insulin-BAT relationship, one possible explanation for the reduced supraclavicular temperature is that exogenous, unlike endogenous, insulin, is not suppressed by the activity of the sympathetic nervous system, preventing lipolysis-driven activation of BAT.
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Affiliation(s)
- James M Law
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK
| | - David E Morris
- Bioengineering Research Group, Faculty of Engineering, University of Nottingham, Nottingham, UK
| | - Lindsay Robinson
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Tabitha Randell
- Paediatric Diabetes & Endocrinology, Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Louise Denvir
- Paediatric Diabetes & Endocrinology, Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Michael E Symonds
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK.,Nottingham Digestive Disease Centre and Biomedical Research Centre, School of Medicine, University of Nottingham, Nottingham, UK
| | - Helen Budge
- Early Life Research Unit, Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, UK
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13
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Straat ME, Hogenboom R, Boon MR, Rensen PCN, Kooijman S. Circadian control of brown adipose tissue. Biochim Biophys Acta Mol Cell Biol Lipids 2021; 1866:158961. [PMID: 33933649 DOI: 10.1016/j.bbalip.2021.158961] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 02/07/2023]
Abstract
Disruption of circadian (~24 h) rhythms is associated with an increased risk of cardiometabolic diseases. Therefore, unravelling how circadian rhythms are regulated in different metabolic tissues has become a prominent research focus. Of particular interest is brown adipose tissue (BAT), which combusts triglyceride-derived fatty acids and glucose into heat and displays a circannual and diurnal rhythm in its thermogenic activity. In this review, the genetic, neuronal and endocrine generation of these rhythms in BAT is discussed. In addition, the potential risks of disruption or attenuation of these rhythms in BAT, and possible factors influencing these rhythms, are addressed.
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Affiliation(s)
- Maaike E Straat
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Rick Hogenboom
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Mariëtte R Boon
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Sander Kooijman
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, the Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands.
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14
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Nahon KJ, Janssen LGM, Sardjoe Mishre ASD, Bilsen MP, van der Eijk JA, Botani K, Overduin LA, Ruiz JR, Burakiewicz J, Dzyubachyk O, Webb AG, Kan HE, Berbée JFP, van Klinken J, van Dijk KW, van Weeghel M, Vaz FM, Coskun T, Jazet IM, Kooijman S, Martinez‐Tellez B, Boon MR, Rensen PCN. The effect of mirabegron on energy expenditure and brown adipose tissue in healthy lean South Asian and Europid men. Diabetes Obes Metab 2020; 22:2032-2044. [PMID: 32558052 PMCID: PMC7771034 DOI: 10.1111/dom.14120] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Revised: 06/04/2020] [Accepted: 06/14/2020] [Indexed: 02/06/2023]
Abstract
AIM To compare the effects of cold exposure and the β3-adrenergic receptor agonist mirabegron on plasma lipids, energy expenditure and brown adipose tissue (BAT) activity in South Asians versus Europids. MATERIALS AND METHODS Ten lean Dutch South Asian (aged 18-30 years; body mass index [BMI] 18-25 kg/m2 ) and 10 age- and BMI-matched Europid men participated in a randomized, double-blinded, cross-over study consisting of three interventions: short-term (~ 2 hours) cold exposure, mirabegron (200 mg one dose p.o.) and placebo. Before and after each intervention, we performed lipidomic analysis in serum, assessed resting energy expenditure (REE) and skin temperature, and measured BAT fat fraction by magnetic resonance imaging. RESULTS In both ethnicities, cold exposure increased the levels of several serum lipid species, whereas mirabegron only increased free fatty acids. Cold exposure increased lipid oxidation in both ethnicities, while mirabegron increased lipid oxidation in Europids only. Cold exposure and mirabegron enhanced supraclavicular skin temperature in both ethnicities. Cold exposure decreased BAT fat fraction in both ethnicities. After the combination of data from both ethnicities, mirabegron decreased BAT fat fraction compared with placebo. CONCLUSIONS In South Asians and Europids, cold exposure and mirabegron induced beneficial metabolic effects. When combining both ethnicities, cold exposure and mirabegron increased REE and lipid oxidation, coinciding with a higher supraclavicular skin temperature and lower BAT fat fraction.
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Affiliation(s)
- Kimberly J. Nahon
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Laura G. M. Janssen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | | | - Manu P. Bilsen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jari A. van der Eijk
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Kani Botani
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Lisanne A. Overduin
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jonatan R. Ruiz
- Department of Physical Education and Sport, Faculty of Sport SciencesPROFITH “PROmoting FITness and Health through physical activity” research group, Sport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
| | - Jedrzej Burakiewicz
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Oleh Dzyubachyk
- Department of Radiology, Division of Image Processing (LKEB)Leiden University Medical CenterLeidenthe Netherlands
| | - Andrew G. Webb
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Hermien E. Kan
- Department of RadiologyC.J. Gorter Center for High Field MRILeidenthe Netherlands
| | - Jimmy F. P. Berbée
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Jan‐Bert van Klinken
- Department of Human GeneticsLeiden University Medical CenterLeidenthe Netherlands
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Ko Willems van Dijk
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
- Department of Human GeneticsLeiden University Medical CenterLeidenthe Netherlands
| | - Michel van Weeghel
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Frédéric M. Vaz
- Laboratory Genetic Metabolic DiseasesAmsterdam UMC, University of Amsterdam, Amsterdam Gastroenterology and Metabolism, Amsterdam Cardiovascular SciencesAmsterdamthe Netherlands
- Core Facility MetabolomicsAmsterdam UMC, University of AmsterdamAmsterdamthe Netherlands
| | - Tamer Coskun
- Department of Diabetes/EndocrineLilly Research Laboratories, Lilly Corporate CenterIndianapolisIndianaUSA
| | - Ingrid M. Jazet
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Sander Kooijman
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Borja Martinez‐Tellez
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
- Department of Physical Education and Sport, Faculty of Sport SciencesPROFITH “PROmoting FITness and Health through physical activity” research group, Sport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
| | - Mariëtte R. Boon
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
| | - Patrick C. N. Rensen
- Department of Medicine, Division of EndocrinologyLeiden University Medical CenterLeidenthe Netherlands
- Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CenterLeidenthe Netherlands
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Functional characterization of human brown adipose tissue metabolism. Biochem J 2020; 477:1261-1286. [PMID: 32271883 DOI: 10.1042/bcj20190464] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/13/2020] [Accepted: 03/16/2020] [Indexed: 02/07/2023]
Abstract
Brown adipose tissue (BAT) has long been described according to its histological features as a multilocular, lipid-containing tissue, light brown in color, that is also responsive to the cold and found especially in hibernating mammals and human infants. Its presence in both hibernators and human infants, combined with its function as a heat-generating organ, raised many questions about its role in humans. Early characterizations of the tissue in humans focused on its progressive atrophy with age and its apparent importance for cold-exposed workers. However, the use of positron emission tomography (PET) with the glucose tracer [18F]fluorodeoxyglucose ([18F]FDG) made it possible to begin characterizing the possible function of BAT in adult humans, and whether it could play a role in the prevention or treatment of obesity and type 2 diabetes (T2D). This review focuses on the in vivo functional characterization of human BAT, the methodological approaches applied to examine these features and addresses critical gaps that remain in moving the field forward. Specifically, we describe the anatomical and biomolecular features of human BAT, the modalities and applications of non-invasive tools such as PET and magnetic resonance imaging coupled with spectroscopy (MRI/MRS) to study BAT morphology and function in vivo, and finally describe the functional characteristics of human BAT that have only been possible through the development and application of such tools.
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16
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Gillis DJ, Capone S, Nestor K, Snell M. The influence of menthol dose on human temperature regulation and perception. J Therm Biol 2020; 92:102659. [PMID: 32888563 DOI: 10.1016/j.jtherbio.2020.102659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 07/01/2020] [Indexed: 02/06/2023]
Abstract
INTRODUCTION This study assessed the influence of High (H, 4.13%), Medium (M, 2.0%) and Low (L, 0.1%) doses of menthol on temperature perception and regulation, compared to a Placebo Condition (P). METHOD Sixteen participants underwent the aforementioned conditions on four separate days. During each test participants rested supine (Environmental conditions: 30 °C, 50% rh) for 30-min before 40 mL of L, M, H or P gel was applied to the anterior upper body, then rested 30-min thereafter. Primary measures included thermal sensation (TS), thermal comfort (TC), irritation (IRR), rectal temperature (Tre), and skin temperature (chest, forearm, thigh, calf), and EMG (trapezius, pectoralis major, sternocleidomastoid). The area under the curve (AUC) from minute 30 to 60 was compared between conditions using relevant non/parametric tests (alpha level = 0.05). RESULTS A cooling trend in Tre was observed following Placebo gel application, but this significantly (p < 0.05) reversed into a heat storage response in M and H. Both TS and TC significantly differed by condition (p < 0.001) in a dose-dependent manner, with L, M, and H doses eliciting significantly cooler sensations and more discomfort than P (p < 0.05). Irritation significantly differed by condition (p < 0.01) in a dose-dependent manner, with L and M eliciting significantly greater irritation than P (p < 0.01). No other differences were observed. CONCLUSIONS Menthol exerts perceptual and thermoregulatory effects independent of skin temperature. A menthol dose-dependent perceptual cooling effect was evident with possible saturation at the moderate dose. A dose-dependent alteration in deep body temperature was also evident.
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Affiliation(s)
- D Jason Gillis
- Human Performance Laboratory, Department of Sport and Movement Science, Salem State University, 225 Canal Street, Salem, MA, 01970, USA.
| | - Selena Capone
- Human Performance Laboratory, Department of Sport and Movement Science, Salem State University, 225 Canal Street, Salem, MA, 01970, USA
| | - Kacey Nestor
- Human Performance Laboratory, Department of Sport and Movement Science, Salem State University, 225 Canal Street, Salem, MA, 01970, USA
| | - Mitchel Snell
- Human Performance Laboratory, Department of Sport and Movement Science, Salem State University, 225 Canal Street, Salem, MA, 01970, USA
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17
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Mengel LA, Seidl H, Brandl B, Skurk T, Holzapfel C, Stecher L, Claussnitzer M, Hauner H. Gender Differences in the Response to Short-term Cold Exposure in Young Adults. J Clin Endocrinol Metab 2020; 105:5798990. [PMID: 32144431 DOI: 10.1210/clinem/dgaa110] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 03/02/2020] [Indexed: 02/03/2023]
Abstract
CONTEXT Cold exposure (CE) has been shown to enhance energy expenditure by activating brown adipose tissue thermogenesis and metabolism in humans. However, it remains to be elucidated if there are gender-specific differences in cold-induced thermogenesis and metabolism. OBJECTIVE To study the impact of mild CE on resting energy expenditure (REE) and metabolism in males compared with females. SETTING A cross-sectional study. PARTICIPANTS 117 healthy young Caucasians participated in this study (58 males). Mean age was 25.1 ± 3.6 years and mean body mass index 22.3 ± 1.7 kg/m2. INTERVENTION Participants underwent a short-term CE using water perfused mattresses to activate nonshivering thermogenesis. MAIN OUTCOME MEASURES REE was assessed before and 2 hours after CE followed by blood sampling. Selected metabolites and hormones were measured. Skin temperatures were monitored at various sites throughout the experiment. RESULTS Participants showed a significant increase in REE after CE (6.5%, P < .001). This increase did not differ between genders (P = .908). However, there were differences between males and females in changes of plasma glucose (-5.1% versus -7.4%, P = .024), leptin (-14.3% versus -30.1%, P < .001) and adiponectin (5.4% versus 12.8%, P = .018) after CE. We observed a significant decrease of the supraclavicular skin temperature in men (-0.3%, P = .034), but not in women (0.3%, P = .326)(P = .019 between genders). CONCLUSIONS We did not observe a difference in the thermogenic response, measured as change of REE, to CE in women compared with men. However, we found that some metabolic and hormonal changes were more pronounced in women than in men suggesting a gender-specific response to cold.
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Affiliation(s)
- Laura A Mengel
- Else Kröner-Fresenius-Zentrum für Ernährungsmedizin, ZIEL-Institute for Food and Health, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Hatti Seidl
- Institute of Nutritional Medicine, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Beate Brandl
- Else Kröner-Fresenius-Zentrum für Ernährungsmedizin, ZIEL-Institute for Food and Health, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Thomas Skurk
- Else Kröner-Fresenius-Zentrum für Ernährungsmedizin, ZIEL-Institute for Food and Health, Technical University of Munich, Freising-Weihenstephan, Germany
| | - Christina Holzapfel
- Institute of Nutritional Medicine, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Lynne Stecher
- Institute of Nutritional Medicine, TUM School of Medicine, Technical University of Munich, Munich, Germany
| | - Melina Claussnitzer
- Broad Institute of MIT and Harvard, Cambridge, MA
- Division of Gerontology, Department of Medicine, Beth Israel Deaconess Medical Center, Boston, MA
- Institute of Nutritional Science, University of Hohenheim, Germany
- Harvard Medical School, Harvard University, Boston, MA
| | - Hans Hauner
- Else Kröner-Fresenius-Zentrum für Ernährungsmedizin, ZIEL-Institute for Food and Health, Technical University of Munich, Freising-Weihenstephan, Germany
- Institute of Nutritional Medicine, TUM School of Medicine, Technical University of Munich, Munich, Germany
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18
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Tay SH, Goh HJ, Govindharajulu P, Cheng J, Camps SG, Haldar S, Velan SS, Sun L, Li Y, Henry CJ, Leow MKS. Brown fat activity determined by infrared thermography and thermogenesis measurement using whole body calorimetry (BRIGHT Study). Physiol Res 2020; 69:85-97. [PMID: 31852199 DOI: 10.33549/physiolres.934190] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
To assess BAT activity in humans at a population level, infrared thermography (IRT) represents a safe, readily repeatable and affordable alternative to 18F-FDG-PET. Building upon a previously proposed method by our laboratory, we further refined the image computational algorithm to quantify BAT activation in the cervical-supraclavicular (C-SCV) region of healthy young men under thermo-neutral and cold exposure conditions. Additionally, we validated the whole-body calorimeter (WBC) in reliably measuring cold-induced thermogenesis. The temperature gradient between C-SCV-deltoid regions, and the corresponding difference in heat power output, increased upon cold air exposure relative to thermo-neutral conditions (by 74.88 %, p<0.0001; and by 71.34 %, p<0.0001 respectively). Resting and cumulative energy expenditure (EE) rose significantly (by 13.14 % and 9.12 % respectively, p=0.0001) while positive correlations between IRT measures and EE were found with cold air exposure (percentage change in heat power gradient between ROI and deltoid, cold air: r(2)=0.29, p=0.026, Pearson's correlation). IRT and WBC can be used to study BAT activation. The refined algorithm allows for more automation and objectivity in IRT data analysis, especially under cold air exposures.
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Affiliation(s)
- S H Tay
- Clinical Nutrition Research Centre, Singapore Institute for Clinical Sciences, Agency for Science, Technology and Research (A*STAR), Singapore.
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19
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Jimenez‐Pavon D, Corral‐Perez J, Sánchez‐Infantes D, Villarroya F, Ruiz JR, Martinez‐Tellez B. Infrared Thermography for Estimating Supraclavicular Skin Temperature and BAT Activity in Humans: A Systematic Review. Obesity (Silver Spring) 2019; 27:1932-1949. [PMID: 31691547 PMCID: PMC6899990 DOI: 10.1002/oby.22635] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 07/25/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Brown adipose tissue (BAT) is a thermogenic tissue with potential as a therapeutic target in the treatment of obesity and related metabolic disorders. The most used technique for quantifying human BAT activity is the measurement of 18 F-fluorodeoxyglucose uptake via a positron emission tomography/computed tomography scan following exposure to cold. However, several studies have indicated the measurement of the supraclavicular skin temperature (SST) by infrared thermography (IRT) to be a less invasive alternative. This work reviews the state of the art of this latter method as a means of determining BAT activity in humans. METHODS The data sources for this review were PubMed, Web of Science, and EBSCOhost (SPORTdiscus), and eligible studies were those conducted in humans. RESULTS In most studies in which participants were first cooled, an increase in IRT-measured SST was noted. However, only 5 of 24 such studies also involved a nuclear technique that confirmed increased activity in BAT, and only 2 took into account the thickness of the fat layer when measuring SST by IRT. CONCLUSIONS More work is needed to understand the involvement of tissues other than BAT in determining IRT-measured SST; at present, IRT cannot determine whether any increase in SST is due to increased BAT activity.
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Affiliation(s)
- David Jimenez‐Pavon
- MOVE‐IT Research Group, Department of Physical Education, Faculty of Education SciencesUniversity of CádizCádizSpain
- Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Puerta del Mar University Hospital, University of CádizCádizSpain
| | - Juan Corral‐Perez
- MOVE‐IT Research Group, Department of Physical Education, Faculty of Education SciencesUniversity of CádizCádizSpain
- Biomedical Research and Innovation Institute of Cádiz (INiBICA) Research Unit, Puerta del Mar University Hospital, University of CádizCádizSpain
| | - David Sánchez‐Infantes
- Department of Endocrinology and NutritionGermans Trias i Pujol Research InstituteBadalonaBarcelonaSpain
- Biomedical Research Center (Fisiopatología de la Obesidad y Nutrición) (CIBEROBN), ISCIIIMadridSpain
| | - Francesc Villarroya
- Biomedical Research Center (Fisiopatología de la Obesidad y Nutrición) (CIBEROBN), ISCIIIMadridSpain
- Department of Biochemistry and Molecular BiomedicineInstitute of BiomedicineBarcelonaSpain
| | - Jonatan R. Ruiz
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport SciencesSport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
| | - Borja Martinez‐Tellez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport SciencesSport and Health University Research Institute (iMUDS), University of GranadaGranadaSpain
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular MedicineLeiden University Medical CentreLeidenthe Netherlands
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20
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Law JM, Morris DE, Astle V, Finn E, Muros JJ, Robinson LJ, Randell T, Denvir L, Symonds ME, Budge H. Brown Adipose Tissue Response to Cold Stimulation Is Reduced in Girls With Autoimmune Hypothyroidism. J Endocr Soc 2019; 3:2411-2426. [PMID: 31777769 PMCID: PMC6872489 DOI: 10.1210/js.2019-00342] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 10/04/2019] [Indexed: 01/15/2023] Open
Abstract
Objective The interaction between thyroid status and brown adipose tissue (BAT) activation is complex. We assessed the effect of autoimmune hypothyroidism (ATD) in female children on BAT activation, measured using infrared thermography. Design Twenty-six female participants (14 with ATD and 12 healthy controls) between 5 and 17 years of age attended a single study session. Thermal images were taken of the supraclavicular region before, and after, the introduction of a cool stimulus. Results Participants with ATD had lower resting (hypothyroid, 34.9 ± 0.7°C; control, 35.4 ± 0.5°C; P = 0.03) and stimulated (hypothyroid, 35.0 ± 0.6°C; control, 35.5 ± 0.5°C; P = 0.04) supraclavicular temperatures compared with controls, but there was no difference between groups in the temperature increase with stimulation. BAT activation, calculated as the relative temperature change comparing the supraclavicular temperature to a sternal reference region, was reduced in participants with ATD (hypothyroid, 0.1 ± 0.1°C; control, 0.2 ± 0.2°C; P = 0.04). Children with ATD were frequently biochemically euthyroid due to replacement therapy, but, despite this, increased relative supraclavicular temperature was closely associated with increased TSH (r = 0.7, P = 0.01) concentrations. Conclusions Girls with ATD had an attenuated thermogenic response to cold stimulation compared with healthy controls, but, contrary to expectation, those with suboptimal biochemical control (with higher TSH) showed increased BAT activation. This suggests that the underlying disease process may have a negative effect on BAT response, but high levels of TSH can mitigate, and even stimulate, BAT activity. In summary, thyroid status is a complex determinant of BAT activity in girls with ATD.
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Affiliation(s)
- James M Law
- Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, United Kingdom
| | - David E Morris
- Bioengineering Research Group, Faculty of Engineering, University of Nottingham, Nottingham, United Kingdom
| | - Valerie Astle
- Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, United Kingdom
| | - Ellie Finn
- School of Medicine, Monash University, Melbourne, Victoria, Australia
| | - José Joaquín Muros
- Department of Food Science, School of Pharmacy, University of Granada, Granada, Spain
| | - Lindsay J Robinson
- Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, United Kingdom
| | - Tabitha Randell
- Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Louise Denvir
- Nottingham Children's Hospital, Nottingham University Hospitals NHS Trust, Nottingham, United Kingdom
| | - Michael E Symonds
- Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, United Kingdom.,Nottingham Digestive Disease Centre and Biomedical Research Centre, University of Nottingham, Nottingham, United Kingdom
| | - Helen Budge
- Early Life Research Unit, Division of Child Health, Obstetrics and Gynaecology, University of Nottingham, Nottingham, United Kingdom
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21
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Estimating the cold-induced brown adipose tissue glucose uptake rate measured by 18F-FDG PET using infrared thermography and water-fat separated MRI. Sci Rep 2019; 9:12358. [PMID: 31451711 PMCID: PMC6710246 DOI: 10.1038/s41598-019-48879-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Accepted: 08/13/2019] [Indexed: 11/24/2022] Open
Abstract
Brown adipose tissue (BAT) expends chemical energy to produce heat, which makes it a potential therapeutic target for combating metabolic dysfunction and overweight/obesity by increasing its metabolic activity. The most well-established method for measuring BAT metabolic activity is glucose uptake rate (GUR) measured using 18F-fluorodeoxyglucose (FDG) positron emission tomography (PET). However, this is expensive and exposes the subjects to potentially harmful radiation. Cheaper and safer methods are warranted for large-scale or longitudinal studies. Potential alternatives include infrared thermography (IRT) and magnetic resonance imaging (MRI). The aim of this study was to evaluate and further develop these techniques. Twelve healthy adult subjects were studied. The BAT GUR was measured using 18F-FDG PET during individualized cooling. The temperatures of the supraclavicular fossae and a control region were measured using IRT during a simple cooling protocol. The fat fraction and effective transverse relaxation rate of BAT were measured using MRI without any cooling intervention. Simple and multiple linear regressions were employed to evaluate how well the MRI and IRT measurements could estimate the GUR. Results showed that both IRT and MRI measurements correlated with the GUR. This suggest that these measurements may be suitable for estimating the cold-induced BAT GUR in future studies.
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22
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Nirengi S, Wakabayashi H, Matsushita M, Domichi M, Suzuki S, Sukino S, Suganuma A, Kawaguchi Y, Hashimoto T, Saito M, Sakane N. An optimal condition for the evaluation of human brown adipose tissue by infrared thermography. PLoS One 2019; 14:e0220574. [PMID: 31449537 PMCID: PMC6709909 DOI: 10.1371/journal.pone.0220574] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/15/2019] [Indexed: 12/21/2022] Open
Abstract
Brown adipose tissue (BAT) is responsible for non-shivering thermogenesis and is an attractive therapeutic target for combating obesity and related diseases. Human BAT activity has been evaluated by 18F-fluorodeoxyglucose-positron emission tomography/computed tomography (18FDG-PET/CT) under acute cold exposure, but the method has some serious limitations, including radiation exposure. Infrared thermography (IRT) may be a simple and less-invasive alternative to evaluate BAT activity. In the present study, to establish an optimal condition for IRT, using a thermal imaging camera, skin temperature was measured in the supraclavicular region close to BAT depots (Tscv) and the control chest region (Tc) in 24 young healthy volunteers. Their BAT activity was assessed as the maximal standardized uptake value (SUVmax) by 18FDG-PET/CT. Under a warm condition at 24–27°C, no significant correlation was found between the IRT parameters (Tscv, Tc,, and the difference between Tscv and Tc,, Δtemp) and SUVmax, but 30–120 min after cold exposure at 19°C, Tscv and Δtemp were significantly correlated with SUVmax (r = 0.40–0.48 and r = 0.68–0.76). Δtemp after cold exposure was not affected by mean body temperature, body fatness, and skin blood flow. A lower correlation (r = 0.43) of Δtemp with SUVmax was also obtained when the participant’s hands were immersed in water at 18°C for 5 min. Receiver operating characteristic analysis revealed that Δtemp after 30–60 min cold exposure can be used as an index for BAT evaluation with 74% sensitivity, 92% specificity, and 79% diagnostic accuracy. Thus, IRT may be useful as a simple and less-invasive method for evaluating BAT, particularly for large-scale screening and longitudinal repeat studies.
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Affiliation(s)
- Shinsuke Nirengi
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Hitoshi Wakabayashi
- Laboratory of Environmental Ergonomics, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | | | - Masayuki Domichi
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Shinichi Suzuki
- Laboratory of Environmental Ergonomics, Faculty of Engineering, Hokkaido University, Sapporo, Japan
| | - Shin Sukino
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Akiko Suganuma
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | - Yaeko Kawaguchi
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
| | | | | | - Naoki Sakane
- Division of Preventive Medicine, Clinical Research Institute, National Hospital Organization Kyoto Medical Center, Kyoto, Japan
- * E-mail:
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23
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Acosta FM, Martinez-Tellez B, Blondin DP, Haman F, Rensen PCN, Llamas-Elvira JM, Martinez-Nicolas A, Ruiz JR. Relationship between the Daily Rhythm of Distal Skin Temperature and Brown Adipose Tissue 18F-FDG Uptake in Young Sedentary Adults. J Biol Rhythms 2019; 34:533-550. [PMID: 31389278 PMCID: PMC6732824 DOI: 10.1177/0748730419865400] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The present study examines whether the daily rhythm of distal skin temperature (DST) is associated with brown adipose tissue (BAT) metabolism as determined by 18F-fluorodeoxyglucose (18F-FDG) uptake in young adults. Using a wireless thermometer (iButton) worn on the nondominant wrist, DST was measured in 77 subjects (26% male; age 22 ± 2 years; body mass index 25.2 ± 4.8 kg/m2) for 7 consecutive days. The temperatures to which they were habitually exposed over the day were also recorded. The interday stability of DST was calculated from the collected data, along with the intraday variability and relative amplitude; the mean temperature of the 5 and 10 consecutive hours with the maximum and minimum DST values, respectively; and when these hours occurred. Following exposure to cold, BAT volume and mean and peak standardized 18F-FDG uptake (SUVmean and SUVpeak) were determined for each subject via static 18F-FDG positron emission tomography/computed tomography scanning. Relative amplitude and the time at which the 10 consecutive hours of minimum DST values occurred were positively associated with BAT volume, SUVmean, and SUVpeak (p ≤ 0.02), whereas the mean DST of that period was inversely associated with the latter BAT variables (p ≤ 0.01). The interday stability and intraday variability of the DST were also associated (directly and inversely, respectively) with BAT SUVpeak (p ≤ 0.02 for both). All of these associations disappeared, however, when the analyses were adjusted for the ambient temperature to which the subjects were habitually exposed. Thus, the relationship between the daily rhythm of DST and BAT activity estimated by 18F-FDG uptake is masked by environmental and likely behavioral factors. Of note is that those participants exposed to the lowest ambient temperature showed 3 to 5 times more BAT volume and activity compared with subjects who were exposed to a warmer ambient temperature.
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Affiliation(s)
- Francisco M Acosta
- PROFITH "PROmoting 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
| | - Borja Martinez-Tellez
- PROFITH "PROmoting 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.,Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Denis P Blondin
- Faculty of Medicine and Health Sciences, Department of Pharmacology-Physiology, Université de Sherbrooke and Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Québec, Canada
| | - François Haman
- Faculty of Health Sciences, University of Ottawa, Ottawa, Ontario, Canada
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Jose M Llamas-Elvira
- Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, Spain; Instituto de Investigación Biosanitaria (ibs. GRANADA), Servicio de Medicina Nuclear, Granada, Spain
| | - Antonio Martinez-Nicolas
- Chronobiology Lab, Department of Physiology, College of Biology, University of Murcia, Mare Nostrum Campus, IUIE, IMIB-Arrixaca, Murcia, Spain.,Ciber Fragilidad y Envejecimiento Saludable (CIBERFES), Madrid, Spain
| | - Jonatan R Ruiz
- PROFITH "PROmoting 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
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24
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Sexual Dimorphism of Brown Adipose Tissue Function. J Pediatr 2019; 210:166-172.e1. [PMID: 30979545 DOI: 10.1016/j.jpeds.2019.03.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 03/05/2019] [Accepted: 03/05/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To determine whether brown adipose tissue (BAT) activity in school-age children differs between the sexes and to explore the impact of dietary intake, sedentary behavior, and picky/fussy eating. STUDY DESIGN Children aged 8.5-11.8 years of age (n = 36) underwent infrared thermography to determine the temperature of the skin overlying the main superficial BAT depot in the supraclavicular region before and after 5 minutes of mild cold exposure (single-hand immersion in cool tap water at about 20°C). The relationships between the supraclavicular region temperature and parental reports of food consumption, eating behavior, and inactivity were explored. RESULTS The supraclavicular region temperature was higher in boys (n = 16) at baseline, and after cold exposure. Boys displayed a greater thermogenic response to cold. Strong negative correlations were observed between the supraclavicular region temperature and body mass index percentile, and differences in supraclavicular region temperature between girls and boys persisted after adjustment for body mass index percentile. A negative linear relationship was observed between protein and vegetable intake and supraclavicular region temperature in girls only, but did not persist after adjustment for multiple comparisons. There was no difference in the adjusted supraclavicular region temperature between active or inactive children, or picky and nonpicky eaters. CONCLUSIONS These findings indicate sexual dimorphism in BAT thermogenic activity and a sex-specific impact of diet. Future studies should aim to quantify the contribution of BAT to childhood energy expenditure, energy imbalance, and any role in the origins of childhood obesity.
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25
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Levy SB. Field and laboratory methods for quantifying brown adipose tissue thermogenesis. Am J Hum Biol 2019; 31:e23261. [DOI: 10.1002/ajhb.23261] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 05/07/2019] [Accepted: 05/11/2019] [Indexed: 12/11/2022] Open
Affiliation(s)
- Stephanie B. Levy
- Department of Anthropology CUNY Hunter College New York, New York
- Department of Anthropology Yale University New Haven Connecticut
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26
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Skin temperature response to a liquid meal intake is different in men than in women. Clin Nutr 2019; 38:1339-1347. [DOI: 10.1016/j.clnu.2018.05.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 05/08/2018] [Accepted: 05/29/2018] [Indexed: 02/04/2023]
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Martinez-Tellez B, Garcia-Rivero Y, Sanchez-Delgado G, Xu H, Amaro-Gahete FJ, Acosta FM, Rensen PCN, Boon MR, Llamas-Elvira JM, Ruiz JR. Supraclavicular skin temperature measured by iButtons and 18F-fluorodeoxyglucose uptake by brown adipose tissue in adults. J Therm Biol 2019; 82:178-185. [PMID: 31128645 DOI: 10.1016/j.jtherbio.2019.04.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 04/11/2019] [Accepted: 04/13/2019] [Indexed: 02/06/2023]
Abstract
Currently, 18 [F]-Fluorodeoxyglucose (18F-FDG) in combination with a positron emission tomography/computed tomography (PET/CT) scan analysis is the most commonly used method to quantify human BAT volume and activity. However, this technique presents several drawbacks which negatively affect participant's health. The aim of the present work is to determine whether supraclavicular skin temperature can be used as an indirect marker of cold-induced BAT and skeletal muscle 18F-FDG uptake in adults, while taking into account body composition. We performed a personalized cooling protocol just before an 18F-FDG-PET/CT scan, and we measured supraclavicular skin temperature before (in warm conditions) and after the cooling protocol in 88 adults (n = 57 women, mean age: 21.9 ± 2.1 years old, body mass index: 24.5 ± 4.3 km/m2). We found that supraclavicular skin temperature at the warm and cold periods was weakly and positively associated with BAT activity (SUVmean and SUVpeak: β = 3.000; R2 = 0.072; P = 0.022 and β = 2.448; R2 = 0.060; P = 0.021), but not with skeletal muscle 18F-FDG uptake, after controlling for body composition. We performed further analyses and the positive associations persisted only in the group of women. In conclusion, supraclavicular skin temperature in warm and cold conditions seems to be related with cold-induced 18F-FDG uptake by BAT only in women, although the low explained variance of these associations means that there are other factors involved in the supraclavicular skin temperature.
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Affiliation(s)
- Borja Martinez-Tellez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain; Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands.
| | - Yolanda Garcia-Rivero
- Nuclear Medicine Department, "Virgen de las Nieves" University Hospital, Granada, Spain; Biohealth Research Institute in Granada (ibs.GRANADA), Nuclear Medicine Department, Spain
| | - Guillermo Sanchez-Delgado
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
| | - Huiwen Xu
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
| | - Francisco J Amaro-Gahete
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
| | - Francisco M Acosta
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Mariëtte R Boon
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Jose M Llamas-Elvira
- Nuclear Medicine Department, "Virgen de las Nieves" University Hospital, Granada, Spain; Biohealth Research Institute in Granada (ibs.GRANADA), Nuclear Medicine Department, Spain
| | - Jonatan R Ruiz
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
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Paulus A, van Ewijk PA, Nascimento EBM, De Saint-Hubert M, Hendrikx G, Vogg A, Pooters I, Schnijderberg M, Vanderlocht J, Bos G, Brans B, Schrauwen-Hinderling VB, Mottaghy FM, Bauwens M. Characterization of BAT activity in rats using invasive and non-invasive techniques. PLoS One 2019; 14:e0215852. [PMID: 31091250 PMCID: PMC6519816 DOI: 10.1371/journal.pone.0215852] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 04/09/2019] [Indexed: 11/19/2022] Open
Abstract
Introduction Brown adipose tissue (BAT) is considered as a potential target for combating obesity in humans where active BAT metabolizes glucose and fatty acids as fuel resulting in heat production. Prospective studies in humans have been set up to further study the presence and metabolic activity of BAT mostly using Positron Emission Tomography (PET) imaging in cold-stimulated conditions with the radiolabeled glucose derivative [18F]FDG. However, radiotracers beyond [18F]FDG have been proposed to investigate BAT activity, targeting various aspects of BAT metabolism. It remains questionable which tracer is best suited to detect metabolic BAT activity and to what extent those results correlate with ex vivo metabolic BAT activity. Methods PET and Single Photon Emission Computed Tomography (SPECT) imaging, targeting different aspects of BAT activation such as glucose metabolism, fatty acid metabolism, noradrenergic stimulation, blood perfusion and amino acid transport system, was performed immediately after injection of the tracer in rats under different temperatures: room temperature, acute cold (4 ⁰C for 4 h) or acclimated to cold (4 ⁰C for 6 h per day during 28 days). Furthermore, Magnetic Resonance Spectroscopy (MRS)-derived BAT temperature was measured in control and cold-acclimated rats. Results At room temperature, only [18F]FDG visualized BAT. Glucose metabolism, fatty acid metabolism, noradrenergic stimulation and blood perfusion showed a clear tracer-dependent twofold increase in BAT uptake upon cold exposure. Only the tracer for the amino acid transport system did not show BAT specific uptake under any of the experimental conditions. MRS demonstrated that cold-acclimated animals had BAT with a stronger heat-production compared to control animals. Conclusion BAT activity following cold exposure in rats was visualized by several tracers, while only [18F]FDG was also able to show BAT activity under non-stimulated conditions (room temperature). The variances in uptake of the different tracers should be taken into account when developing future clinical applications in humans.
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Affiliation(s)
- Andreas Paulus
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Nutrition and Movement Sciences, Maastricht University, Maastricht, The Netherlands
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Petronella A. van Ewijk
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Emmani B. M. Nascimento
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Nutrition and Movement Sciences, Maastricht University, Maastricht, The Netherlands
| | - Marijke De Saint-Hubert
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
- CARIM, Maastricht University, Maastricht, Netherlands
| | - Geert Hendrikx
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
- CARIM, Maastricht University, Maastricht, Netherlands
| | - Andrea Vogg
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Ivo Pooters
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Melanie Schnijderberg
- Hematology, Department of Internal Medicine, School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Joris Vanderlocht
- Central Diagnostic Laboratory, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Gerard Bos
- Hematology, Department of Internal Medicine, School of Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Boudewijn Brans
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Vera B. Schrauwen-Hinderling
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
| | - Felix M. Mottaghy
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
- Department of Nuclear Medicine, University Hospital RWTH Aachen University, Aachen, Germany
| | - Matthias Bauwens
- Department of Radiology and Nuclear Medicine, Maastricht University Medical Center (MUMC+), Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Department of Nutrition and Movement Sciences, Maastricht University, Maastricht, The Netherlands
- * E-mail:
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29
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Martinez-Tellez B, Perez-Bey A, Sanchez-Delgado G, Acosta FM, Corral-Perez J, Amaro-Gahete FJ, Alcantara JMA, Castro-Piñero J, Jimenez-Pavon D, Llamas-Elvira JM, Ruiz JR. Concurrent validity of supraclavicular skin temperature measured with iButtons and infrared thermography as a surrogate marker of brown adipose tissue. J Therm Biol 2019; 82:186-196. [PMID: 31128647 DOI: 10.1016/j.jtherbio.2019.04.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 04/05/2019] [Accepted: 04/15/2019] [Indexed: 12/17/2022]
Abstract
Brown adipose tissue (BAT) thermogenic activity is commonly assessed with a positron emission tomography with computed tomography scan (PET/CT). This technique has several limitations and alternative techniques are needed. Supraclavicular skin temperature measured with iButtons and infrared thermography (IRT) has been proposed as an indirect marker of BAT activity. We studied the concurrent validity of skin temperature measured with iButtons vs. IRT and the association of supraclavicular skin temperature measured with iButtons and IRT with BAT. We measured skin temperature upon a shivering threshold test with iButtons and IRT in 6 different regions in 12 participants (n = 2 men). On a separate day, we determined supraclavicular skin temperature with an iButton and IRT after 2 h of a personalized cooling protocol. Thereafter, we quantified BAT volume and activity by PET/CT. We observed that the absolute differences between the devices were statistically different from 0 (all P < 0.05) after the shivering threshold test. Moreover, we did not find any association between supraclavicular skin temperature measured with iButtons or IRT and BAT 18F-FDG activity (r = -0.213; P = 0.530 and r = -0.079; P = 0.817). However, we observed a negative association of supraclavicular skin temperature measured by IRT with BAT 18F-FDG volume (r = -0.764; P = 0.006), but not with supraclavicular skin temperature measured with iButtons (r = -0.546; P = 0.082). In light of these results, we concluded that the measurement of skin temperature obtained by iButtons and IRT are not comparable. Furthermore, it seems that supraclavicular skin temperature is not associated with BAT 18F-FDG activity, but it appears to be negatively associated with BAT 18F-FDG volume in the case of IRT.
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Affiliation(s)
- Borja Martinez-Tellez
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain; Department of Medicine, Division of Endocrinology, And Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands.
| | - Alejandro Perez-Bey
- Galeno Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Cádiz, Spain
| | - Guillermo Sanchez-Delgado
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Francisco M Acosta
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Juan Corral-Perez
- MOVE-IT Research Group, Department of Physical Education, Faculty of Education, Sciences, University of Cádiz, Spain
| | - Francisco J Amaro-Gahete
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain; Department of Physiology, Faculty of Medicine, University of Granada, Granada, Spain
| | - Juan M A Alcantara
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Jose Castro-Piñero
- Galeno Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Cádiz, Spain
| | - David Jimenez-Pavon
- MOVE-IT Research Group, Department of Physical Education, Faculty of Education, Sciences, University of Cádiz, Spain
| | - Jose M Llamas-Elvira
- Nuclear Medicine Service, "Virgen de las Nieves" University Hospital, Granada, Spain; Nuclear Medicine Service, Biohealth Research Institute (ibs. GRANADA), Granada, Spain
| | - Jonatan R Ruiz
- PROFITH (PROmoting FITness and Health Through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
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30
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Loh RKC, Formosa MF, La Gerche A, Reutens AT, Kingwell BA, Carey AL. Acute metabolic and cardiovascular effects of mirabegron in healthy individuals. Diabetes Obes Metab 2019; 21:276-284. [PMID: 30203462 DOI: 10.1111/dom.13516] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 08/15/2018] [Accepted: 08/24/2018] [Indexed: 12/12/2022]
Abstract
AIMS To quantify acute energy expenditure, supraclavicular skin temperature and cardiovascular responses to four doses of the β3-adrenoceptor agonist, mirabegron. MATERIALS AND METHODS A total of 17 individuals (11 men, six women) participated in this ascending-dose study, receiving single 50-, 100-, 150- and 200-mg doses of mirabegron on four separate days with 3 to 14 days wash-out between each dose. All variables were measured each visit from baseline to 180 minutes post mirabegron treatment. To determine brown adipose tissue (BAT) thermogenic efficacy at each dose, energy expenditure and supraclavicular skin temperature were compared from baseline to 180 minutes post mirabegron treatment. To examine safety, changes in cardiovascular variables at 100, 150 and 200 mg were compared with the standard clinical dose of 50 mg. RESULTS Energy expenditure significantly increased after the 100- (35.6 ± 5.4 kJ/h) and 200-mg (35.6 ± 13.1 kJ/h) doses (P ≤ 0.05), and trended towards an increase after 150 mg (24.1 ± 13.6 kJ/h). Supraclavicular skin temperature increased after 50- (0.22 ± 0.1°C), 100- (0.30 ± 0.1°C) and 150-mg mirabegron doses (0.29 ± 0.1°C; P ≤ 0.05). The change in systolic blood pressure was greater after 150- (7.1 ± 1.3 mm Hg) and 200-mg doses (9.3 ± 1.9 mm Hg) than after the 50-mg dose (2.2 ± 1.3 mm Hg; P ≤ 0.05). The change in heart rate was greater after 200 mg (9.0 ± 2.2 bpm) compared with 50 mg (2.9 ± 1.4 bpm; P ≤ 0.05). CONCLUSIONS A 100-mg dose of mirabegron increases energy expenditure and supraclavicular skin temperature in a β3-adrenoceptor-specific manner, without the off-target elevations in blood pressure or heart rate observed at higher doses.
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Affiliation(s)
- Rebecca K C Loh
- Metabolic and Vascular Physiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Physiology, Monash University, Melbourne, Victoria, Australia
| | - Melissa F Formosa
- Metabolic and Vascular Physiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Andre La Gerche
- Sports Cardiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Anne T Reutens
- Clinical Diabetes and Epidemiology, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Bronwyn A Kingwell
- Metabolic and Vascular Physiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Physiology, Monash University, Melbourne, Victoria, Australia
| | - Andrew L Carey
- Metabolic and Vascular Physiology Laboratory, Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia
- Department of Physiology, Monash University, Melbourne, Victoria, Australia
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31
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Chondronikola M, Sidossis LS. Brown and beige fat: From molecules to physiology. Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:91-103. [DOI: 10.1016/j.bbalip.2018.05.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Revised: 02/11/2018] [Accepted: 05/23/2018] [Indexed: 12/16/2022]
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32
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Antoine-Jonville S, El Khoury D, Faure C, Charlot K, Hue O, Hardy-Dessources MD. Metabolic response to oral glucose tolerance test performed in neutral and warm environmental temperature. Int J Hyperthermia 2019. [DOI: 10.1080/02656736.2019.1623423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- Sophie Antoine-Jonville
- Laboratoire ACTES (Adaptation Climat Tropical Exercice Santé, EA3596), Université des Antilles, Pointe-à-Pitre, France
| | - Dalia El Khoury
- College of Social and Applied Human Sciences, University of Guelph, Guelph, Canada
| | - Cécile Faure
- Laboratoire ACTES (Adaptation Climat Tropical Exercice Santé, EA3596), Université des Antilles, Pointe-à-Pitre, France
| | - Keyne Charlot
- Laboratoire ACTES (Adaptation Climat Tropical Exercice Santé, EA3596), Université des Antilles, Pointe-à-Pitre, France
- Département Environnements Opérationnels, Unité de Physiologie de l'Exercice et des Activités en Conditions Extrêmes, Institut de Recherche Biomédicale des Armées, Bretigny-Sur-Orge, France
| | - Olivier Hue
- Laboratoire ACTES (Adaptation Climat Tropical Exercice Santé, EA3596), Université des Antilles, Pointe-à-Pitre, France
| | - Marie-Dominique Hardy-Dessources
- UMR - INSERM 1134, Université des Antilles, Guadeloupe, France
- Laboratoire d’Excellence GR-Ex (The red cell: from genesis to death), PRES Sorbonne Paris Cité, Paris, France
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33
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Moonen MP, Nascimento EB, van Marken Lichtenbelt WD. Human brown adipose tissue: Underestimated target in metabolic disease? Biochim Biophys Acta Mol Cell Biol Lipids 2019; 1864:104-112. [DOI: 10.1016/j.bbalip.2018.05.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 03/16/2018] [Accepted: 05/21/2018] [Indexed: 02/06/2023]
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34
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Sanchez-Delgado G, Martinez-Tellez B, Garcia-Rivero Y, Alcantara JMA, Acosta FM, Amaro-Gahete FJ, Llamas-Elvira JM, Ruiz JR. Brown Adipose Tissue and Skeletal Muscle 18F-FDG Activity After a Personalized Cold Exposure Is Not Associated With Cold-Induced Thermogenesis and Nutrient Oxidation Rates in Young Healthy Adults. Front Physiol 2018; 9:1577. [PMID: 30505277 PMCID: PMC6250802 DOI: 10.3389/fphys.2018.01577] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/22/2018] [Indexed: 01/12/2023] Open
Abstract
Cold induced thermogenesis (CIT) in humans results mainly from the combination of both brown adipose tissue (BAT) and skeletal muscle thermogenic activity. The relative contribution of both tissues to CIT and to cold induced nutrient oxidation rates (CI-NUTox) remains, however, to be elucidated. We investigated the association of BAT and skeletal muscle activity after a personalized cold exposure with CIT and CI-NUTox in 57 healthy adults (23.0 ± 2.4 years old; 25.1 ± 4.6 kg/m2; 35 women). BAT and skeletal muscle (paracervical, sternocleidomastoid, scalene, longus colli, trapezius, parathoracic, supraspinatus, subscapular, deltoid, pectoralis major, and triceps brachii) metabolic activity were assessed by means of a 18Fluorodeoxyglucose positron emission tomography-computed tomography scan preceded by a personalized cold exposure. The cold exposure consisted in remaining in a mild cold room for 2 h at 19.5–20°C wearing a water perfused cooling vest set at 3.8°C above the individual shivering threshold. On a separate day, we estimated CIT and CI-NUTox by indirect calorimetry under fasting conditions for 1 h of personalized cold exposure. There was no association of BAT volume or activity with CIT or CI-NUTox (all P > 0.2). Similarly, the skeletal muscle metabolic activity was not associated either with CIT or CI-NUTox (all P > 0.2). The results persisted after controlling for sex, the time of the day, and the date when CIT was assessed. Our results suggest that human BAT activity and skeletal muscle 18F-FDG activity are not associated to CIT in young healthy adults. Inherent limitations of the available radiotracers for BAT detection and muscle activity quantification may explain why we failed to detect a physiologically plausible association.
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Affiliation(s)
- Guillermo Sanchez-Delgado
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Borja Martinez-Tellez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Yolanda Garcia-Rivero
- Nuclear Medicine Department, "Virgen de las Nieves" University Hospital, Granada, Spain.,Nuclear Medicine Department, Biohealth Research Institute in Granada (ibs.GRANADA), Granada, Spain
| | - Juan M A Alcantara
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Francisco M Acosta
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Francisco J Amaro-Gahete
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Departament of Medical Physiology, School of Medicine, University of Granada, Granada, Spain
| | - Jose M Llamas-Elvira
- Nuclear Medicine Department, "Virgen de las Nieves" University Hospital, Granada, Spain.,Nuclear Medicine Department, Biohealth Research Institute in Granada (ibs.GRANADA), Granada, Spain
| | - Jonatan R Ruiz
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
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35
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Zlámal F, Lenart P, Kuruczová D, Kalina T, de la Torre G, Ramallo MA, Bienertová-Vašků J. Stress entropic load: New stress measurement method? PLoS One 2018; 13:e0205812. [PMID: 30335807 PMCID: PMC6193677 DOI: 10.1371/journal.pone.0205812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 10/02/2018] [Indexed: 11/18/2022] Open
Abstract
While stress is a widely utilized concept, no direct methods facilitating its measurement are currently available. In our previous work we proposed stress entropic load (SEL) as a potential new marker of stress response in the human body. However, at that time no method for SEL measurement existed. In this pilot study we devised and then tested methodology for SEL measurement. Healthy male participants were monitored by indirect calorimetry and thermography while resting and subsequently while under prolonged mental effort. The acquired data was then used to calculate the temporal development of SEL for each participant. Our results show that SEL production increased significantly in participants subjected to prolonged mental effort. Furthermore, we observed that the calculated development of SEL over time may be used to accurately determine the time point at which participants started performing stressful tasks.
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Affiliation(s)
- Filip Zlámal
- Research Center for Toxic Compounds in the Environment (RECETOX), Faculty of science, Masaryk University, Brno, Czech Republic
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Peter Lenart
- Research Center for Toxic Compounds in the Environment (RECETOX), Faculty of science, Masaryk University, Brno, Czech Republic
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Daniela Kuruczová
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Tomáš Kalina
- Department of Athletics, Swimming and Outdoor Sports, Faculty of Sports Studies, Masaryk University, Brno, Czech Republic
| | - Gabriel de la Torre
- Department of Psychology, University of Cadiz, Campus Rio San Pedro, Puerto Real, Cadiz, Spain
| | - Miguel A. Ramallo
- Department of Psychology, University of Cadiz, Campus Rio San Pedro, Puerto Real, Cadiz, Spain
| | - Julie Bienertová-Vašků
- Research Center for Toxic Compounds in the Environment (RECETOX), Faculty of science, Masaryk University, Brno, Czech Republic
- Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
- * E-mail:
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36
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Levy SB, Klimova TM, Zakharova RN, Federov AI, Fedorova VI, Baltakhinova ME, Leonard WR. Brown adipose tissue, energy expenditure, and biomarkers of cardio‐metabolic health among the Yakut (Sakha) of northeastern Siberia. Am J Hum Biol 2018; 30:e23175. [DOI: 10.1002/ajhb.23175] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 07/09/2018] [Accepted: 07/29/2018] [Indexed: 12/29/2022] Open
Affiliation(s)
- Stephanie B. Levy
- Department of Anthropology Yale University New Haven Connecticut
- Department of Anthropology CUNY Hunter College New York City New York
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37
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Kaikaew K, van den Beukel JC, Neggers SJCMM, Themmen APN, Visser JA, Grefhorst A. Sex difference in cold perception and shivering onset upon gradual cold exposure. J Therm Biol 2018; 77:137-144. [PMID: 30196892 DOI: 10.1016/j.jtherbio.2018.08.016] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 01/22/2023]
Abstract
To maintain a thermal balance when experiencing cold, humans reduce heat loss and enhance heat production. A potent and rapid mechanism for heat generation is shivering. Research has shown that women prefer a warmer environment and feel less comfortable than men in the same thermal condition. Using the Blanketrol® III, a temperature management device commonly used to study brown adipose tissue activity, we tested whether the experimental temperature (TE) at which men and women start to shiver differs. Twenty male and 23 female volunteers underwent a cooling protocol, starting at 24 °C and gradually decreasing by 1-2 °C every 5 min until an electromyogram detected the shivering or the temperature reached 9 °C. Women started shivering at a higher TE than men (11.3 ± 1.8 °C for women vs 9.6 ± 1.8 °C for men, P = 0.003). In addition, women felt cool, scored by a visual analogue scale, at a higher TE than men (18.3 ± 3.0 °C for women vs 14.6 ± 2.6 °C for men, P < 0.001). This study demonstrates a sex difference in response to cold exposure: women require shivering as a source of heat production earlier than men. This difference could be important and sex should be considered when using cooling protocols in physiological studies.
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Affiliation(s)
- Kasiphak Kaikaew
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands; Department of Physiology, Faculty of Medicine, Chulalongkorn University, 1873, Rama IV Road, Pathumwan, Bangkok 10330, Thailand
| | - Johanna C van den Beukel
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Sebastian J C M M Neggers
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Axel P N Themmen
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
| | - Jenny A Visser
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands.
| | - Aldo Grefhorst
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, PO Box 2040, 3000 CA Rotterdam, the Netherlands
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38
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Ruiz JR, Martinez-Tellez B, Sanchez-Delgado G, Osuna-Prieto FJ, Rensen PCN, Boon MR. Role of Human Brown Fat in Obesity, Metabolism and Cardiovascular Disease: Strategies to Turn Up the Heat. Prog Cardiovasc Dis 2018; 61:232-245. [PMID: 29981351 DOI: 10.1016/j.pcad.2018.07.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Accepted: 07/01/2018] [Indexed: 11/17/2022]
Abstract
Human brown adipose tissue (BAT) was re-discovered in 2009 by several independent groups, who showed that it is present and active in adults, as judged from the profound uptake of the glucose analogue radiotracer 18F-fluorodeoxyglucose in positron-emission tomography and computed tomography scan analysis after cold exposure. A potential clinical implication of activating BAT relates to its high metabolic activity and its potential role in stimulating energy expenditure (i.e. resting energy expenditure, meal-induced thermogenesis, and cold-induced thermogenesis), which makes it an attractive target to reduce adiposity. Moreover, due to its ability to oxidise glucose and lipids, BAT activation may also potentially exert beneficial metabolic and cardiovascular effects through reducing glucose and lipid levels, respectively. This review describes the potential role of human BAT in the prevention and treatment of obesity, metabolism, and cardiovascular disease focusing on its impact on energy expenditure and management of body fat accumulation as well as on glucose and lipid metabolism. This article also summarises the strategies that are currently being studied to activate human BAT.
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Affiliation(s)
- Jonatan R Ruiz
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain.
| | - Borja Martinez-Tellez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain; Department of Medicine, Division of Endocrinology, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Guillermo Sanchez-Delgado
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain
| | - Francisco J Osuna-Prieto
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical and Sports Education, Faculty of Sports Science, University of Granada, Granada, Spain; Department of Analytical Chemistry, University of Granada, Avda Fuentenueva s/n, 18071 Granada, Spain; Research and Development of Functional Food Centre (CIDAF), Granada, Spain
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Mariëtte R Boon
- Department of Medicine, Division of Endocrinology, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
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39
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Recent advances in the detection of brown adipose tissue in adult humans: a review. Clin Sci (Lond) 2018; 132:1039-1054. [PMID: 29802209 DOI: 10.1042/cs20170276] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 03/23/2018] [Accepted: 03/23/2018] [Indexed: 02/07/2023]
Abstract
The activation of brown adipose tissue (BAT) is associated with reductions in circulating lipids and glucose in rodents and contributes to energy expenditure in humans indicating the potential therapeutic importance of targetting this tissue for the treatment of a variety of metabolic disorders. In order to evaluate the therapeutic potential of human BAT, a variety of methodologies for assessing the volume and metabolic activity of BAT are utilized. Cold exposure is often utilized to increase BAT activity but inconsistencies in the characteristics of the exposure protocols make it challenging to compare findings. The metabolic activity of BAT in response to cold exposure has most commonly been measured by static positron emission tomography of 18F-fluorodeoxyglucose in combination with computed tomography (18F-FDG PET-CT) imaging, but recent studies suggest that under some conditions this may not always reflect BAT thermogenic activity. Therefore, recent studies have used alternative positron emission tomography and computed tomography (PET-CT) imaging strategies and radiotracers that may offer important insights. In addition to PET-CT, there are numerous emerging techniques that may have utility for assessing BAT metabolic activity including magnetic resonance imaging (MRI), skin temperature measurements, near-infrared spectroscopy (NIRS) and contrast ultrasound (CU). In this review, we discuss and critically evaluate the various methodologies used to measure BAT metabolic activity in humans and provide a contemporary assessment of protocols which may be useful in interpreting research findings and guiding the development of future studies.
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40
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Acosta FM, Martinez-Tellez B, Sanchez-Delgado G, A. Alcantara JM, Acosta-Manzano P, Morales-Artacho AJ, R. Ruiz J. Physiological responses to acute cold exposure in young lean men. PLoS One 2018; 13:e0196543. [PMID: 29734360 PMCID: PMC5937792 DOI: 10.1371/journal.pone.0196543] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Accepted: 04/14/2018] [Indexed: 01/21/2023] Open
Abstract
The aim of this study was to comprehensively describe the physiological responses to an acute bout of mild cold in young lean men (n = 11, age: 23 ± 2 years, body mass index: 23.1 ± 1.2 kg/m2) to better understand the underlying mechanisms of non-shivering thermogenesis and how it is regulated. Resting energy expenditure, substrate metabolism, skin temperature, thermal comfort perception, superficial muscle activity, hemodynamics of the forearm and abdominal regions, and heart rate variability were measured under warm conditions (22.7 ± 0.2°C) and during an individualized cooling protocol (air-conditioning and water cooling vest) in a cold room (19.4 ± 0.1°C). The temperature of the cooling vest started at 16.6°C and decreased ~ 1.4°C every 10 minutes until participants shivered (93.5 ± 26.3 min). All measurements were analysed across 4 periods: warm period, at 31% and at 64% of individual´s cold exposure time until shivering occurred, and at the shivering threshold. Energy expenditure increased from warm period to 31% of cold exposure by 16.7% (P = 0.078) and to the shivering threshold by 31.7% (P = 0.023). Fat oxidation increased by 72.6% from warm period to 31% of cold exposure (P = 0.004), whereas no changes occurred in carbohydrates oxidation. As shivering came closer, the skin temperature and thermal comfort perception decreased (all P<0.05), except in the supraclavicular skin temperature, which did not change (P>0.05). Furthermore, the superficial muscle activation increased at the shivering threshold. It is noteworthy that the largest physiological changes occurred during the first 30 minutes of cold exposure, when the participants felt less discomfort.
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Affiliation(s)
- Francisco M. Acosta
- PROFITH “PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Borja Martinez-Tellez
- PROFITH “PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Department of Medicine, Division of Endocrinology, Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, the Netherlands
| | - Guillermo Sanchez-Delgado
- PROFITH “PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Juan M. A. Alcantara
- PROFITH “PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Pedro Acosta-Manzano
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Antonio J. Morales-Artacho
- Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Jonatan R. Ruiz
- PROFITH “PROmoting FITness and Health through physical activity” research group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
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41
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Coolbaugh CL, Bush EC, Galenti ES, Welch EB, Towse TF. An Individualized, Perception-Based Protocol to Investigate Human Physiological Responses to Cooling. Front Physiol 2018; 9:195. [PMID: 29593558 PMCID: PMC5859361 DOI: 10.3389/fphys.2018.00195] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 02/23/2018] [Indexed: 01/01/2023] Open
Abstract
Cold exposure, a known stimulant of the thermogenic effects of brown adipose tissue (BAT), is the most widely used method to study BAT physiology in adult humans. Recently, individualized cooling has been recommended to standardize the physiological cold stress applied across participants, but critical experimental details remain unclear. The purpose of this work was to develop a detailed methodology for an individualized, perception-based protocol to investigate human physiological responses to cooling. Participants were wrapped in two water-circulating blankets and fitted with skin temperature probes to estimate BAT activity and peripheral vasoconstriction. We created a thermoesthesia graphical user interface (tGUI) to continuously record the subject's perception of cooling and shivering status during the cooling protocol. The protocol began with a 15 min thermoneutral phase followed by a series of 10 min cooling phases and concluded when sustained shivering (>1 min duration) occurred. Researchers used perception of cooling feedback (tGUI ratings) to manually adjust and personalize the water temperature at each cooling phase. Blanket water temperatures were recorded continuously during the protocol. Twelve volunteers (ages: 26.2 ± 1.4 years; 25% female) completed a feasibility study to evaluate the proposed protocol. Water temperature, perception of cooling, and shivering varied considerably across participants in response to cooling. Mean clavicle skin temperature, a surrogate measure of BAT activity, decreased (−0.99°C, 95% CI: −1.7 to −0.25°C, P = 0.16) after the cooling protocol, but an increase in supraclavicular skin temperature was observed in 4 participants. A strong positive correlation was also found between thermoesthesia and peripheral vasoconstriction (ρ = 0.84, P < 0.001). The proposed individualized, perception-based protocol therefore has potential to investigate the physiological responses to cold stress applied across populations with varying age, sex, body composition, and cold sensitivity characteristics.
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Affiliation(s)
- Crystal L Coolbaugh
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Emily C Bush
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States
| | - Elizabeth S Galenti
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States
| | - E Brian Welch
- Vanderbilt University Institute of Imaging Science, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Radiology and Radiological Sciences, Vanderbilt University Medical Center, Nashville, TN, United States.,Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, United States
| | - Theodore F Towse
- Department of Biomedical Sciences, Grand Valley State University, Allendale, MI, United States
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42
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A Diurnal Rhythm in Brown Adipose Tissue Causes Rapid Clearance and Combustion of Plasma Lipids at Wakening. Cell Rep 2018; 22:3521-3533. [DOI: 10.1016/j.celrep.2018.03.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Revised: 01/12/2018] [Accepted: 02/28/2018] [Indexed: 02/07/2023] Open
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43
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Crandall JP, O JH, Gajwani P, Leal JP, Mawhinney DD, Sterzer F, Wahl RL. Measurement of Brown Adipose Tissue Activity Using Microwave Radiometry and 18F-FDG PET/CT. J Nucl Med 2018; 59:1243-1248. [PMID: 29439011 DOI: 10.2967/jnumed.117.204339] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 12/20/2017] [Indexed: 11/16/2022] Open
Abstract
The aim of this study was to evaluate the operating characteristics of a microwave radiometry system in the noninvasive assessment of activated and nonactivated brown adipose tissue (BAT) and normal-tissue temperatures, reflecting metabolic activity in healthy human subjects. The radiometry data were compared with 18F-FDG PET/CT images in the same subjects. Methods: Microwave radiometry and 18F-FDG PET/CT were sequentially performed on 19 participants who underwent a cold intervention to maximize BAT activation. The cold intervention involved the participants' intermittently placing their feet on an ice block while sitting in a cool room. Participants exhibiting BAT activity qualitatively on PET/CT were scanned again with both modalities after undergoing a BAT minimization protocol (exposure to a warm room and a 20-mg dose of propranolol). Radiometry was performed every 5 min for 2 h before PET/CT imaging during both the warm and the cold interventions. A grid of 15-20 points was drawn on the participant's upper body (data were collected at each point), and a photograph was taken for comparison with PET/CT images. Results: PET/CT identified increased signal consistent with BAT activity in 11 of 19 participants. In 10 of 11 participants with active BAT, radiometry measurements collected during the cold study were modestly, but significantly, higher on points located over areas of active BAT on PET/CT than on points not exhibiting BAT activity (P < 0.01). This difference lessened during the warm studies: 7 of 11 participants showed radiometry measurements that did not differ significantly between the same set of points. The mean radiometry result collected during BAT maximization was 33.2°C ± 1.5°C at points designated as active and 32.7°C ± 1.3°C at points designated as inactive (P < 0.01). Conclusion: Passive microwave radiometry was shown to be feasible and, with substantial improvements, has the potential to noninvasively detect active brown adipose tissue without a radiotracer injection.
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Affiliation(s)
- John P Crandall
- Mallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, Missouri
| | - Joo H O
- Department of Radiology, College of Medicine, Seoul St. Mary's Hospital, Catholic University of Korea, Seoul, Korea
| | - Prateek Gajwani
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland; and
| | - Jeffrey P Leal
- Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland; and
| | | | | | - Richard L Wahl
- Mallinckrodt Institute of Radiology, Washington University in St. Louis, St. Louis, Missouri .,Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, Maryland; and
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44
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Chondronikola M, Beeman SC, Wahl RL. Non-invasive methods for the assessment of brown adipose tissue in humans. J Physiol 2018; 596:363-378. [PMID: 29119565 PMCID: PMC5792561 DOI: 10.1113/jp274255] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/04/2017] [Indexed: 01/10/2023] Open
Abstract
Brown adipose tissue (BAT) is a recently rediscovered tissue in people that has shown promise as a potential therapeutic target against obesity and its metabolic abnormalities. Reliable non-invasive assessment of BAT volume and activity is critical to allow its importance in metabolic control to be evaluated. Positron emission tomography/computed tomography (PET/CT) in combination with 2-deoxy-2-[18 F]fluoroglucose administration is currently the most frequently used and most established method for the detection and quantification of activated BAT in humans. However, it involves radiation exposure and can detect activated (e.g. after cold exposure), but not quiescent, BAT. Several alternative methods that overcome some of these limitations have been developed including different PET approaches, single-photon emission imaging, CT, magnetic resonance based approaches, contrast-enhanced ultrasound, near infrared spectroscopy, and temperature assessment of fat depots containing brown adipocytes. The purpose of this review is to summarize and critically evaluate the currently available methods that non-invasively probe various aspects of BAT biology in order to assess BAT volume and/or metabolism. Although several of these methods show promise for the non-invasive assessment of BAT volume and function, further research is needed to optimize them to enable an accurate, reproducible and practical means for the assessment of human BAT content and its metabolic function.
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Affiliation(s)
- Maria Chondronikola
- Center for Human NutritionWashington University School of MedicineSt LouisMOUSA
- Harokopio University of AthensAthensGreece
| | - Scott C. Beeman
- Department of Radiology, Mallinckrodt Institute of RadiologyWashington University School of MedicineSt LouisMOUSA
| | - Richard L. Wahl
- Department of Radiology, Mallinckrodt Institute of RadiologyWashington University School of MedicineSt LouisMOUSA
- Department of Radiation Oncology, Mallinckrodt Institute of RadiologyWashington University School of MedicineSt LouisMOUSA
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45
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Martinez-Tellez B, Sanchez-Delgado G, Garcia-Rivero Y, Alcantara JMA, Martinez-Avila WD, Muñoz-Hernandez MV, Olza J, Boon MR, Rensen PCN, Llamas-Elvira JM, Ruiz JR. A New Personalized Cooling Protocol to Activate Brown Adipose Tissue in Young Adults. Front Physiol 2017; 8:863. [PMID: 29163207 PMCID: PMC5673647 DOI: 10.3389/fphys.2017.00863] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/16/2017] [Indexed: 12/28/2022] Open
Abstract
Brown adipose tissue (BAT) activity is induced when humans are exposed to cold. Therefore, cold exposure prior to the 18F-FDG-PET/CT scan is used as a tool to quantify BAT. Several cooling protocols, including fixed and personalized ones are currently in use. The aim of the present study was to determine the effect of a new personalized cooling protocol where the shivering threshold was measured on a separate day, on BAT volume and activity in young adults. A total of 47 adults (n = 28 women) aged 22 ± 2 years participated in the study. We determined participants' shivering threshold (visually and self-reported) using a water perfused cooling vest in an air-conditioned cold room. 48–72 h later, participants wore the cooling vest set at ~4°C above the shivering threshold for 60 min prior to injection of 18F-FDG and ~5°C above the shivering threshold for ~60 min after injection, until PET/CT scan. We quantified BAT following BARCIST 1.0 recommendations. We identified 40 participants (85%, n = 25 women) as PET+ and 7 (n = 3 women) as PET–. The PET+ group presented significantly higher BAT volume and activity than PET– group (all P < 0.05). PET+ women had higher BAT mean activity than PET+ men (SUVmean: 5.0 ± 1.6 vs. 3.6 ± 0.9 g/ml respectively, P = 0.003), and there were no significant sex differences in BAT volume (P = 0.161). A total of 9 out of 47 participants did not shiver during the shivering threshold test. Our findings are similar to previous cold-stimulated human BAT studies; therefore, we conclude that our personalized cooling protocol is able to activate BAT in young adults.
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Affiliation(s)
- Borja Martinez-Tellez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.,Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Department of Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Guillermo Sanchez-Delgado
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Yolanda Garcia-Rivero
- Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, Spain.,Servicio de Medicina Nuclear, Instituto de Investigación Biosanitaria (ibs. GRANADA), Granada, Spain
| | - Juan M A Alcantara
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Wendy D Martinez-Avila
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Maria V Muñoz-Hernandez
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Josune Olza
- Servicio de Medicina Nuclear, Instituto de Investigación Biosanitaria (ibs. GRANADA), Granada, Spain.,Department of Biochemistry and Molecular Biology II, Institute of Nutrition and Food Sciences, University of Granada, Granada, Spain.,CIBEROBN, Biomedical Research Networking Center for Physiopathology of Obesity and Nutrition, Carlos III Health Institute, Madrid, Spain
| | - Mariëtte R Boon
- Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Department of Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Patrick C N Rensen
- Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Department of Medicine, Leiden University Medical Center, Leiden, Netherlands
| | - Jose M Llamas-Elvira
- Servicio de Medicina Nuclear, Hospital Universitario Virgen de las Nieves, Granada, Spain.,Servicio de Medicina Nuclear, Instituto de Investigación Biosanitaria (ibs. GRANADA), Granada, Spain
| | - Jonatan R Ruiz
- PROFITH (PROmoting FITness and Health through Physical Activity) Research Group, Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
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46
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Haq T, Crane JD, Kanji S, Gunn E, Tarnopolsky MA, Gerstein HC, Steinberg GR, Morrison KM. Optimizing the methodology for measuring supraclavicular skin temperature using infrared thermography; implications for measuring brown adipose tissue activity in humans. Sci Rep 2017; 7:11934. [PMID: 28931855 PMCID: PMC5607277 DOI: 10.1038/s41598-017-11537-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2017] [Accepted: 08/21/2017] [Indexed: 12/21/2022] Open
Abstract
The discovery of brown adipose tissue (BAT) in adults has sparked interest in its role as a therapeutic target in metabolic disorders. Infrared thermography is a promising way to quantify BAT; however, a standardized methodology has not been established. This study aims to establish a standardized and reproducible protocol to measure thermal response to cold in the supraclavicular area using thermographic imaging. In Phase 1, we compared the thermal response to 12 °C cold after acclimation at either 32 °C or room temperature using thermographic imaging. Repeatability of the 32 °C acclimation trial was studied in a second group in Phase 2. Phase 1 included 28 men (mean age 23.9 ± 5.9 y; mean BMI 25.2 ± 3.9 kg/m2) and Phase 2 included 14 men (mean age 20.9 ± 2.4 y; mean BMI 23.6 ± 3.1 kg/m2). The thermal response was greater after 32 °C than after room temperature acclimation (0.22 ± 0.19 vs 0.13 ± 0.17 °C, p = 0.05), was not related to outdoor temperature (r = −0.35, p = 0.07), did not correlate with supraclavicular fat (r = −0.26, p = 0.21) measured with dual-energy x-ray absorptiometry and was repeatable [ICC 0.69 (0.14–0.72)]. Acclimation at 32 °C followed by cold generates a reproducible change in supraclavicular skin temperature measurable by thermal imaging that may be indicative of BAT metabolic activity.
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Affiliation(s)
- Tahniyah Haq
- Department of Pediatrics, McMaster University, Hamilton, L8S 4K1, Canada
| | - Justin D Crane
- Department of Pediatrics, McMaster University, Hamilton, L8S 4K1, Canada
| | - Sarah Kanji
- Department of Pediatrics, McMaster University, Hamilton, L8S 4K1, Canada
| | - Elizabeth Gunn
- Department of Pediatrics, McMaster University, Hamilton, L8S 4K1, Canada
| | - Mark A Tarnopolsky
- Department of Pediatrics, McMaster University, Hamilton, L8S 4K1, Canada.,Department of Medicine, McMaster University, Hamilton, L8S 4K1, Canada
| | | | - Gregory R Steinberg
- Department of Medicine, McMaster University, Hamilton, L8S 4K1, Canada. .,Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, L8S 4K1, Canada.
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47
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Martinez-Tellez B, Sanchez-Delgado G, Acosta FM, Alcantara JMA, Boon MR, Rensen PCN, Ruiz JR. Differences between the most used equations in BAT-human studies to estimate parameters of skin temperature in young lean men. Sci Rep 2017; 7:10530. [PMID: 28874709 PMCID: PMC5585347 DOI: 10.1038/s41598-017-10444-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 08/09/2017] [Indexed: 11/12/2022] Open
Abstract
Cold exposure is necessary to activate human brown adipose tissue (BAT), resulting in heat production. Skin temperature is an indirect measure to monitor the body's reaction to cold. The aim of this research was to study whether the most used equations to estimate parameters of skin temperature in BAT-human studies measure the same values of temperature in young lean men (n = 11: 23.4 ± 0.5 years, fat mass: 19.9 ± 1.2%). Skin temperature was measured with 26 ibuttons at 1-minute intervals in warm and cold room conditions. We used 12 equations to estimate parameters of mean, proximal, and distal skin temperature as well as skin temperature gradients. Data were analysed with Temperatus software. Significant differences were found across equations to measure the same parameters of skin temperature in warm and cold room conditions, hampering comparison across studies. Based on these findings, we suggest to use a set of 14 ibuttons at anatomical positions reported by ISO STANDARD 9886:2004 plus five ibuttons placed on the right supraclavicular fossa, right middle clavicular bone, right middle upper forearm, right top of forefinger, and right upper chest.
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Affiliation(s)
- Borja Martinez-Tellez
- PROFITH "PROmoting FITness and Health through physical activity" research group. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain.
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.
| | - Guillermo Sanchez-Delgado
- PROFITH "PROmoting FITness and Health through physical activity" research group. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Francisco M Acosta
- PROFITH "PROmoting FITness and Health through physical activity" research group. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Juan M A Alcantara
- PROFITH "PROmoting FITness and Health through physical activity" research group. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Mariëtte R Boon
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology, and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Jonatan R Ruiz
- PROFITH "PROmoting FITness and Health through physical activity" research group. Department of Physical Education and Sport, Faculty of Sport Sciences, University of Granada, Granada, Spain
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Nahon KJ, Boon MR, Doornink F, Jazet IM, Rensen PCN, Abreu-Vieira G. Lower critical temperature and cold-induced thermogenesis of lean and overweight humans are inversely related to body mass and basal metabolic rate. J Therm Biol 2017; 69:238-248. [PMID: 29037389 DOI: 10.1016/j.jtherbio.2017.08.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/01/2017] [Accepted: 08/09/2017] [Indexed: 11/28/2022]
Abstract
It is colloquially stated that body size plays a role in the human response to cold, but the magnitude and details of this interaction are unclear. To explore the inherent influence of body size on cold-exposed metabolism, we investigated the relation between body composition and resting metabolic rate in humans at thermoneutrality and during cooling within the nonshivering thermogenesis range. Body composition and resting energy expenditure were measured in 20 lean and 20 overweight men at thermoneutrality and during individualized cold exposure. Metabolic rates as a function of ambient temperature were investigated considering the variability in body mass and composition. We observed an inverse relationship between body size and the lower critical temperature (LCT), i.e. the threshold where thermoneutrality ends and cold activates thermogenesis. LCT was higher in lean than overweight subjects (22.1 ± 0.6 vs 19.5 ± 0.5°C, p < 0.001). Below LCT, minimum conductance was identical between lean and overweight (100 ± 4 vs 97 ± 3kcal/°C/day respectively, p = 0.45). Overweight individuals had higher basal metabolic rate (BMR) explained mostly by the higher lean mass, and lower cold-induced thermogenesis (CIT) per degree of cold exposure. Below thermoneutrality, energy expenditure did not scale to lean body mass. Overweight subjects had lower heat loss per body surface area (44.7 ± 1.3 vs 54.7 ± 2.3kcal/°C/m2/day, p < 0.001). We conclude that larger body sizes possessed reduced LCT as explained by higher BMR related to more lean mass rather than a change in whole-body conductance. Thus, larger individuals with higher lean mass need to be exposed to colder temperatures to activate CIT, not because of increased insulation, but because of a higher basal heat generation. Our study suggests that the distinct effects of body size and composition on energy expenditure should be taken in account when exploring the metabolism of humans exposed to cold.
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Affiliation(s)
- Kimberly J Nahon
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Mariëtte R Boon
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Fleur Doornink
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Ingrid M Jazet
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Patrick C N Rensen
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands
| | - Gustavo Abreu-Vieira
- Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Albinusdreef 2, 2333 ZA Leiden, the Netherlands.
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49
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Hoeke G, Nahon KJ, Bakker LEH, Norkauer SSC, Dinnes DLM, Kockx M, Lichtenstein L, Drettwan D, Reifel-Miller A, Coskun T, Pagel P, Romijn FPHTM, Cobbaert CM, Jazet IM, Martinez LO, Kritharides L, Berbée JFP, Boon MR, Rensen PCN. Short-term cooling increases serum triglycerides and small high-density lipoprotein levels in humans. J Clin Lipidol 2017. [PMID: 28625343 DOI: 10.1016/j.jacl.2017.04.117] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Cold exposure and β3-adrenergic receptor agonism, which both activate brown adipose tissue, markedly influence lipoprotein metabolism by enhancing lipoprotein lipase-mediated catabolism of triglyceride-rich lipoproteins and increasing plasma high-density lipoprotein (HDL) levels and functionality in mice. However, the effect of short-term cooling on human lipid and lipoprotein metabolism remained largely elusive. OBJECTIVE The objective was to assess the effect of short-term cooling on the serum lipoprotein profile and HDL functionality in men. METHODS Body mass index-matched young, lean men were exposed to a personalized cooling protocol for 2 hours. Before and after cooling, serum samples were collected for analysis of lipids and lipoprotein composition by 1H-nuclear magnetic resonance. Adenosine triphosphate-binding cassette A1 (ABCA1)-mediated cholesterol efflux capacity of HDL was measured using [3H]cholesterol-loaded ABCA1-transfected Chinese hamster ovary cells. RESULTS Short-term cooling increased serum levels of free fatty acids, triglycerides, and cholesterol. Cooling increased the concentration of large very low-density lipoprotein (VLDL) particles accompanied by increased mean size of VLDL particles. In addition, cooling enhanced the concentration of small LDL and small HDL particles as well as the cholesterol levels within these particles. The increase in small HDL was accompanied by increased ABCA1-dependent cholesterol efflux in vitro. CONCLUSIONS Our data show that short-term cooling increases the concentration of large VLDL particles and increases the generation of small LDL and HDL particles. We interpret that cooling increases VLDL production and turnover, which results in formation of surface remnants that form small HDL particles that attract cellular cholesterol.
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Affiliation(s)
- Geerte Hoeke
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands.
| | - Kimberly J Nahon
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Leontine E H Bakker
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Donna L M Dinnes
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, Australia
| | - Maaike Kockx
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, Australia
| | - Laeticia Lichtenstein
- Institute of Metabolic and Cardiovascular diseases, I2MC, Inserm, Université de Toulouse, UMR 1048, Toulouse, France
| | | | - Anne Reifel-Miller
- Diabetes/Endocrine Department, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN, USA
| | - Tamer Coskun
- Diabetes/Endocrine Department, Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN, USA
| | | | - Fred P H T M Romijn
- Deparment of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Christa M Cobbaert
- Deparment of Clinical Chemistry and Laboratory Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Ingrid M Jazet
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Laurent O Martinez
- Institute of Metabolic and Cardiovascular diseases, I2MC, Inserm, Université de Toulouse, UMR 1048, Toulouse, France
| | - Leonard Kritharides
- ANZAC Research Institute, Concord Repatriation General Hospital, Sydney, Australia; Department of Cardiology, Concord Repatriation General Hospital, University of Sydney, Sydney, Australia
| | - Jimmy F P Berbée
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Mariëtte R Boon
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Patrick C N Rensen
- Division of Endocrinology, Department of Medicine, Leiden University Medical Center, Leiden, The Netherlands; Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
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50
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Scotney H, Symonds ME, Law J, Budge H, Sharkey D, Manolopoulos KN. Glucocorticoids modulate human brown adipose tissue thermogenesis in vivo. Metabolism 2017; 70:125-132. [PMID: 28403937 PMCID: PMC5395593 DOI: 10.1016/j.metabol.2017.01.024] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 11/28/2016] [Accepted: 01/14/2017] [Indexed: 11/24/2022]
Abstract
INTRODUCTION Brown adipose tissue (BAT) is a thermogenic organ with substantial metabolic capacity and has important roles in the maintenance of body weight and metabolism. Regulation of BAT is primarily mediated through the β-adrenoceptor (β-AR) pathway. The in vivo endocrine regulation of this pathway in humans is unknown. The objective of our study was to assess the in vivo BAT temperature responses to acute glucocorticoid administration. METHODS We studied 8 healthy male volunteers, not pre-selected for BAT presence or activity and without prior BAT cold-activation, on two occasions, following an infusion with hydrocortisone (0.2mg.kg-1.min-1 for 14h) and saline, respectively. Infusions were given in a randomized double-blind order. They underwent assessment of supraclavicular BAT temperature using infrared thermography following a mixed meal, and during β-AR stimulation with isoprenaline (25ng.kg fat-free mass-1.min-1 for 60min) in the fasting state. RESULTS During hydrocortisone infusion, BAT temperature increased both under fasting basal conditions and during β-AR stimulation. We observed a BAT temperature threshold, which was not exceeded despite maximal β-AR activation. We conclude that BAT thermogenesis is present in humans under near-normal conditions. Glucocorticoids modulate BAT function, representing important physiological endocrine regulation of body temperature at times of acute stress.
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Affiliation(s)
- Hannah Scotney
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Michael E Symonds
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK; Nottingham Digestive Diseases Biomedical Research Unit, Queens Medical Centre Campus, Nottingham, NG7 2UH
| | - James Law
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Helen Budge
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Don Sharkey
- Division of Child Health, Obstetrics & Gynaecology, School of Medicine, University of Nottingham, Nottingham, NG7 2UH, UK
| | - Konstantinos N Manolopoulos
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, B15 2TT, UK; Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, B15 2TT, UK.
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