Kiktenko A I
Cell Tissue Res. 1986;244(1):239-40. doi: 10.1007/BF00218405.
Scanning electron microscopy (SEM) was used to examine choroid plexuses in the brain of two human adults aged 44 and 46, respectively, and 12 older subjects from 67 to 98 years of age. It was possible to obtain a three-dimensional view of the ring-like structures (Biondi bodies) located in the cytoplasm of choroid plexus epithelial cells in the older-age group. The filaments forming the rings were clearly visible. No such structures were found between epithelial cells. The intracellular location of the Biondi bodies and their state of preservation compared to other cytoplasmic elements suggest that they may have a destructive effect on epithelial cells of choroid plexuses. The same material was examined by transmission electron microscopy (TEM); the results obtained were in full agreement with the evidence obtained with SEM.
利用扫描电子显微镜（SEM）对两名分别为44岁和46岁的成年人类以及12名年龄在67至98岁之间的老年受试者大脑中的脉络丛进行了检查。在老年组中，能够获得位于脉络丛上皮细胞质中的环状结构（比昂迪体）的三维视图。形成环的细丝清晰可见。上皮细胞之间未发现此类结构。与其他细胞质成分相比，比昂迪体的细胞内位置及其保存状态表明它们可能对脉络丛上皮细胞具有破坏作用。用透射电子显微镜（TEM）对相同材料进行了检查；所得结果与用扫描电子显微镜获得的证据完全一致。
