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

Figure 1

Serum levels of triiodothyronine (T3), thyroxine (T4), and thyroid-stimulating hormone (TSH) after propylthiouracil (PTU) administration for 2 weeks. (a) After receiving PTU for 2 weeks, serum levels of T3 decreased, although there was no statistical significance. (b) PTU administration for 2 weeks significantly reduced the serum levels of T4. (c) PTU administration for 2 weeks significantly increased the serum levels of TSH. P<0.05 and P<0.01, by one-way analysis of variance.

(a)

(b)

(c)