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Table of Contents
Vol. 13, Suppl. 2, 2002
Issue release date: 2002
Section title: Paper
Cerebrovasc Dis 2002;13(suppl 2):7–10
(DOI:10.1159/000049143)

Pathophysiology of Age-Related Cerebral White Matter Changes

Pantoni L.
Department of Neurological and Psychiatric Sciences, University of Florence, Italy

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Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: March 15, 2002
Issue release date: 2002

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 2

ISSN: 1015-9770 (Print)
eISSN: 1421-9786 (Online)

For additional information: http://www.karger.com/CED

Abstract

The pathogenesis of age-related cerebral white matter changes (WMC) is still a matter of investigation. Alterations of deep small vessels, such as arteriolosclerosis, are considered to play a central role in the development of WMC. Stenosis or occlusion of small vessels may cause sudden or more chronic ischemia resulting in small areas of necrosis (lacunar infarction) or diffuse alterations consistent with the definition of white matter incomplete infarct. Moreover, the arteriolosclerotic changes may cause loss of autoregulation in the deep white matter and consequent cerebral blood flow fluctuations in response to changes of systemic blood pressure. Both these types of mechanisms may be particularly harmful because the blood supply of the white matter is of the terminal type with scarce anastomoses. Other pathophysiological hypotheses on the origin of WMC have been raised, and they can probably be considered as complementary to the ischemic one. The small vessel alterations could lead to damage of the blood-brain barrier and chronic leakage of fluid and macromolecules in the white matter. The increased interstitial fluid concentration in abnormal white matter may be also a consequence of arterial hypertensive bouts. Genetically determined factors could play an important role in the development of WMC, and at least one disease (cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy – CADASIL) characterized by severe leukoencephalopathy exists with a determined genetic origin. It is possible that other genetic factors contribute, by interaction with conventional risk factors, to the development of white matter injury in nonfamilial cases.

© 2002 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Paper

Published online: March 15, 2002
Issue release date: 2002

Number of Print Pages: 4
Number of Figures: 0
Number of Tables: 2

ISSN: 1015-9770 (Print)
eISSN: 1421-9786 (Online)

For additional information: http://www.karger.com/CED


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