The authors observeahistological and ultra- structural changes of the tyroid in senile rats,as well as effect of kidney-toniing herbal medicine by means of optical and elec)nic microscope.

• 实验应用光镜与电镜技术,观察老年大鼠甲状腺组织学与超微结构变化,以及补肾中药对老年大鼠甲状腺形态学的影响。