Type 2 iodothyronine deiodinase is the major source of plasma T₃ in euthyroid humans
J. Clin. Invest. Ana Luiza Maia, et al. 115:2524 doi:10.1172/JCI25083 [Go to this article.]

Figure 6
Chromatographic analysis of T₄ to T₃ conversion in HSMMs. Control medium incubated with no cells (A) or HSMMs (B and C) incubated in duplicate 60-mm dishes for 22 hours in 2 ml 0.1% BSA DMEM with approximately 1 μCi/ml [¹²⁵I]T₄ plus specific T₃-Ab (1:1,000) in the absence (B) or presence (C) of dibutyryl cAMP (0.5 mM).