Morphofunctional Aspects of the Normal and Pathological Blood-Brain Barrier.- Morphology of Cerebral Endothelium and Astrocytes as Determinants of the Neuronal Microenviroment.- Enzyme Cytochemistry of the Cerebral Microvessel Wall.- Enzyme Cytochemistry of Blood-Brain Barrier (BBB) Disturbances..- Biochemical Modulation of Blood-Brain Barrier Permeability.- Neurogenic Control of Blood-Brain Barrier Permeability.- Disturbances of the Blood-Brain Barrier in Cerebrovascular Disorders.- Pathophysiological Aspects of Blood-Brain Barrier Disturbances in Experimental Brain Tumors and Brain Abcesses.- Revised Pathophysiology on BBB Damage: The Edema as an Ingeniously Provided Condition for Cell Motility and Lesion Repair.- Aspects of Blood-Brain Barrier in Clinical Brain Imaging.- Therapeutic Considerations in Blood-Brain Barrier Disturbances.- Abstracts of Related Papers.