THE EFFECT OF HUMAN CHORIONIC GONADOTROPIN (hcG) ON THE THYROID OF BULLFROG, QUAIL AND RAT
人绒毛膜促性腺激素(hcG)对牛蛙、鹌鹑和大白鼠的甲状腺的影响

The effects of human chorionic gonadotropin(hcG) on the thyroid functions of three deffrent kinds of animals ...... bullfrog, quail and rat in vivo, have been studied comparatively. Using the Quantimet Lmage Analysers (QMT -900), we measured the changes of thyroid histology in three kinds of animals. The results indicate; (1) hcG would enhance the serum T3 level in all three kinds of animals and the serum T4 level of quail. (2) hcG wonld induce the thyroid follicle volumes, areas and cell's heights to increase in rat, and inversely it made the thyroid follicle volumes, areas and cell's heights to decrease in quail, and had a little effect on the thyroid follicles of bullfrog.