3,5,3'-Triiodothyronine actively stimulates UCP in brown fat under minimal sympathetic activity.
Branco M, Ribeiro M, Negrão N, Bianco AC. 3,5,3'-Triiodothyronine actively stimulates UCP in brown fat under minimal sympathetic activity. Am J Physiol. 1999 01; 276(1):E179-87.