Do Different Species of Sargassum in Haizao Yuhu Decoction Cause Different Effects in a Rat Goiter Model?

Figure 9

Histological observations of the thyroid tissues in different groups (H&E staining) after drug treatment for 28 days. Thyroid tissues in the Mod and Eut groups showed diffuse hyperplasia and hypertrophy of follicular epithelial cells with an irregular arrangement, and follicular secretions were significantly lower in these groups than in the normal Con group. The administration of HYD-H and HYD-Y prevented hyperplasia and hypertrophy of follicular epithelial cells.