The liver pathological tissues were chosen under the electron microscope to observe the change of liver caryon and its mitochondrial area , mitochondrial density , fat drop area .
取肝脏病理组织进行检查，电镜下观察肝细胞核及其线粒体面积、密度，脂肪滴面积的变化情况。
Nucleolar organizer regions ( NORs ) are DNA cycles in the caryon , which are closely related with the nucleolar formation and change . Silver nitrate straining could specifically show that there were NORs of rRNA genes in the caryons .
