RT Journal Article T1 Use of Infrared Thermography to Estimate Brown Fat Activation After a Cooling Protocol in Patients with Severe Obesity That Underwent Bariatric Surgery. A1 Piquer-Garcia, Irene A1 Cereijo, Ruben A1 Corral-Perez, Juan A1 Pellitero, Silvia A1 Martinez, Eva A1 Taxeras, Siri D A1 Tarasco, Jordi A1 Moreno, Pau A1 Balibrea, Jose A1 Puig-Domingo, Manel A1 Serra, Dolors A1 Herrero, Laura A1 Jimenez-Pavon, David A1 Lerin, Carles A1 Villarroya, Francesc A1 Sanchez-Infantes, David K1 Brown adipose tissue K1 Infrared thermography K1 Metabolic surgery K1 Obesity AB In contrast to the energy-storing role of white adipose tissue (WAT), brown adipose tissue (BAT) acts as the main site of non-shivering thermogenesis in mammals and has been reported to play a role in protection against obesity and associated metabolic alterations in rodents. Infrared thermography (IRT) has been proposed as a novel non-invasive, safe, and quick method to estimate BAT thermogenic activation in humans. The aim of this study is to determine whether the IRT could be a potential new tool to estimate BAT thermogenic activation in patients with severe obesity in response to bariatric surgery. Supraclavicular BAT thermogenic activation was evaluated using IRT in a cohort of 31 patients (50 ± 10 years old, BMI = 44.5 ± 7.8; 15 undergoing laparoscopy sleeve gastrectomy and 16 Roux-en-Y gastric bypass) at baseline and 6 months after a bariatric surgery. Clinical parameters were determined at these same time points. Supraclavicular BAT-related activity was detected in our patients by IRT after a cooling stimulus. The BAT thermogenic activation was higher at 6 months after laparoscopy sleeve gastrectomy (0.06 ± 0.1 vs 0.32 ± 0.1), while patients undergoing to a roux-en-Y gastric bypass did not change their thermogenic response using the same cooling stimulus (0.09 ± 0.1 vs 0.08 ± 0.1). Our study postulates the IRT as a potential tool to evaluate BAT thermogenic activation in patients with obesity before and after a bariatric surgery. Further studies are needed to evaluate differences between LSG technique and RYGB on BAT activation. PB Springer New York LLC YR 2020 FD 2020-03-04 LK http://hdl.handle.net/10668/15204 UL http://hdl.handle.net/10668/15204 LA en NO Piquer-Garcia I, Cereijo R, Corral-Pérez J, Pellitero S, Martínez E, Taxerås SD, et al. Use of Infrared Thermography to Estimate Brown Fat Activation After a Cooling Protocol in Patients with Severe Obesity That Underwent Bariatric Surgery. Obes Surg. 2020 Jun;30(6):2375-2381 NO Samples from patients included in this study were provided by the IGTP HUGTP Biobank integrated in the Spanish National Biobanks Network of “Instituto de Salud Carlos III”(PT13/0010/0009), and they were processed following standard operating procedures with the appropriate approval of the Ethical and ScientificCommittees. DS RISalud RD Apr 12, 2025