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Morphology of Astroglial Swelling in Culture and in the Edematous Brain: An Adaptive Response to a Disturbed Microenvironment

  • Marc R. Del Bigio
Part of the Altschul Symposia Series book series (ALSS, volume 2)

Abstract

The brain is enclosed in an unyielding container. Any process that causes expansion of one intracranial component necessarily causes compression of the other components. When there is rapid expansion of an intracranial space-occupying lesion, for example edema in the area of injured brain parenchyma, cerebrospinal fluid and venous blood are displaced from the intracranial compartment and the brain is distorted. Ultimately intracranial pressure rises and, when it exceeds the arterial perfusion pressure, blood flow to the brain is impaired. Thereafter neurons die and the opportunity for functional recovery is lost. Because we are currently incapable of resurrecting neurons which die during the initial ischemic or traumatic insult, we must concentrate our therapeutic efforts on the prevention of secondary neuronal injury. This is most often the consequence of brain swelling due to edema and in order to control brain swelling it is imperative that we understand the pathophysiology of brain edema.

Keywords

Glial Fibrillary Acidic Protein Brain Edema Astroglial Cell Regulatory Volume Decrease Colloid Osmotic Pressure 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Marc R. Del Bigio
    • 1
  1. 1.Division of NeuropathologyUniversity of TorontoTorontoCanada

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