Leptin regulation of the thyroids: negative regulation on thyroid hormone levels in euthyroid subjects and inhibitory effects on iodide uptake and Na+/I- symporter mRNA expression in rat FRTL-5 cells - Isozaki, O; Tsushima, T; Nozoe, Y; Miyakawa, M; Takano, K (Endocr J, 2004)