Concurrent validity of supraclavicular skin temperature measured with iButtons and infrared thermography as a surrogate marker of brown adipose tissue

Publication date: Available online 20 April 2019Source: Journal of Thermal BiologyAuthor(s): Borja Martinez-Tellez, Alejandro Perez-Bey, Guillermo Sanchez-Delgado, Francisco M. Acosta, Juan Corral-Perez, Francisco J. Amaro-Gahete, Juan M.A. Alcantara, Jose Castro-Piñero, David Jimenez-Pavon, Jose M. Llamas-Elvira, Jonatan R. RuizAbstractBrown 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 IR...
Source: Journal of Thermal Biology - Category: Biology Source Type: research