Positron emission tomography images showing glucose tracer uptake (IMAGE) University of Turku Caption Positron emission tomography images showing glucose tracer uptake after placebo and secretin infusions. Arrows show the location of brown adipose tissue. Credit Sanna Laurila, Lihua Sun, Minna Lahesmaa et al. Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.