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Angioarchitecture in experimental hydrocephalus.

N Oka1, J Nakada, S Endo

  • 1Department of Neurosurgery, Toyama Medical and Pharmaceutical University, Japan.

Pediatric Neuroscience
|January 1, 1985
PubMed
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Hydrocephalus in rats significantly alters brain blood vessels, reducing capillaries in white matter and basal ganglia. These vascular changes worsen with hydrocephalus severity, impacting brain structure.

Area of Science:

  • Neuroscience
  • Vascular Biology
  • Medical Imaging

Background:

  • Hydrocephalus is a condition characterized by abnormal accumulation of cerebrospinal fluid in the brain.
  • Understanding the impact of hydrocephalus on cerebral angioarchitecture is crucial for developing effective treatments.

Purpose of the Study:

  • To investigate the changes in the cerebral vascular bed of hydrocephalic rats using microcorrosion casts.
  • To compare the three-dimensional angioarchitecture in rat hydrocephalus with microangiographic techniques.

Main Methods:

  • Scanning electron microscopy was used to examine microcorrosion casts of the cerebral vasculature.
  • 12 hydrocephalic rats and 5 normal control rats were analyzed.
  • The study focused on the cerebral mantle, white matter, basal ganglia, and cortical capillaries.

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Main Results:

  • A significant reduction in the number and caliber of capillaries within the white matter was observed in hydrocephalic rats.
  • This reduction in white matter capillaries correlated with the severity of hydrocephalus.
  • Alterations were also noted in the basal ganglia, and mild changes with loss of the 'palisade' pattern in cortical capillaries.

Conclusions:

  • Hydrocephalus induces substantial changes in the brain's angioarchitecture, particularly affecting white matter and basal ganglia vasculature.
  • The observed vascular alterations are proportional to the severity of the condition.
  • Microvascular casting provides valuable three-dimensional insights into hydrocephalus-induced angioarchitectural changes.