“All five bile acids, … in serum, chenodeoxycholic acid (CDCA), cholic acid (CA), deoxycholic acid (DCA), lithocholic acid (… (UDCA) dose-dependently inhibited both basal and TSH-induced iodide uptake at concentrations of 25-250 microM. Since CDCA is one … primary endogenous bile acids, were studied mainly the effects of CDCA.”
“These results suggest that CDCA inhibits iodide uptake by decreasing cAMP production as well as post-cAMP generation.”
“… CDCA was detected after 24 h treatment of thyroid cells, and was dependent on the time of exposure up to 72 … 72 h inhibited cAMP production stimulated by 50 mU/L TSH or 0.5 mg/L forskolin and also inhibited iodide uptake induced by 0.… mg/L forskolin.”