THE CHOROID-PLEXUS IN FETAL SHEEP DURING DEVELOPMENT WITH SPECIAL REFERENCE TO INTRACELLULAR PLASMA-PROTEINS

Abstract

The developmental stages of the telencephalic, diencephalic and myelencephalic choroid plexuses and the morphology of the choroid plexus epithelial cells in the fetal sheep during development are briefly described. The individual choroid plexuses at different developmental stages were investigated by the indirect immumoperoxidase technique. The number and distribution of albumin-, alpha-fetoprotein-, fetuin-, transferrin-, and alpha1 -antitrypsin-containing cells were recorded. Early in gestation 30-50% of the epithelial cells in the telencephalic choroid plexus were positive for albumin, alpha-fetoprotein and fetuin, and this proportion declined later in gestation to a few percent. In contr..