Intimal thickening in arterial autografts. Role of the adventitial layer.

In the present work, the repairing response of the iliac arterial wall is studied after carrying out autografts in segments of these vessels. The formation of the intimal hyperplasia, which occurred in all the cases, was followed at the biochemical level (tritium thymidine incorporation) and with light and electron microscopy. The adventitial layer showed great activity during the repairing process.

Glioarchitectonics of the cerebellum of the lizard (Lacerta lepida Daudin). Ultrastructural study.

In the cerebellar cortex of the lizard two types of astroglial cells were described: protoplasmic astrocytes and epithelial cells of Golgi. The relationship of these cells to some other cerebellar components such as the neurons of Purkinje, the granular cells or the blood vessels was demonstrated. An additional type of astrocyte rich in cytoplasmic organelles was found.