Clinicopathological and genetic studies of two further Italian families with cerebral autosomal dominant arteriopathy.

TitleClinicopathological and genetic studies of two further Italian families with cerebral autosomal dominant arteriopathy.
Publication TypeJournal Article
Year of Publication1996
AuthorsMalandrini, A, Carrera, P, Palmeri, S, Cavallaro, T, Fabrizi, GM, Villanova, M, Fattapposta, M, Vismara, L, Brancolini, V, Tanganelli, P, Calì, A, Morocutti, C, Zeviani, M, Ferrari, M, Guazzi, GC
JournalActa Neuropathol
Volume92
Issue2
Pagination115-22
Date Published1996 Aug
ISSN0001-6322
KeywordsAdult, Aged, Cerebral Arterial Diseases, Cerebral Arteries, Cerebrovascular Disorders, Dementia, Female, Humans, Immunohistochemistry, Italy, Male, Middle Aged, Pedigree
Abstract

We report on two Italian families with an early-adult onset autosomal dominant disorder, characterized by leukoencephalopathy, migraine, psychiatric disturbances, stroke and dementia. These findings fulfill the diagnostic criteria for cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) syndrome. Moreover, to confirm the CADASIL gene location to 19p12, we performed a linkage analysis with four microsatellite markers. The results of the genetic study gave positive but not significant lod scores, indicating only weak evidence of a linkage with 19p12. In one autopsy case, we found extensive ischemic changes due to the selective involvement of the small muscular arteries of the cerebral white matter. The lesions consisted of a thickening of the media with deposition of granular eosinophilic material. Ultrastructural examination of the arterial walls showed graded damage to smooth muscle cells, mostly of the longitudinal layer, and an abnormal proliferation of basal lamina components. Immunocytochemical analysis showed strong reactivity using antibodies to collagen IV and smooth myosin proteins. The results suggest a primary involvement of the smooth muscle cells of small cerebral arteries, with a secondary alteration of basal lamina components and elastic tissue.

DOI10.1007/s004010050498
Alternate JournalActa Neuropathol.
Citation Key10.1007/s004010050498
PubMed ID8841656