... 12.5, indicating a “window effect of TCDD on the induction of cleft palate; the incidence rate were 9.52% and 4.48%, respectively At the concentration of 80 µg/kg bw TCDD, the cleft palate was induced ... a teratogen to induce cleft palate and has a “window effect at low dosages for the induction of cleft palate Morphologically, the cleft palates induced by TCDD in C57BL/6 and ddY mice were typically ... unclear In our study, the sensitivity of C57BL/6 and ddY mice to the TCDD-induced cleft palate was opposite to that of them to PCTs-induced cleft palate, indicating that the mechanism to induce cleft...