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  • Articles: DFG German National Licenses  (3)
  • Cortical atrophy  (2)
  • Key words Aluminum  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 88 (1994), S. 440-447 
    ISSN: 1432-0533
    Keywords: Key words Senile plaques ; Neurofibrillary tangles ; Dementia ; Cortical atrophy ; Hemispheric specialization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To examine the clinicopathological correlations in rare Alzheimer's disease patients with asymmetric cerebral atrophy and to compare their pattern of cortical involvement by senile lesions with that observed in other cases with atypical Alzheimer's disease, we performed an extensive neuropathological analysis of the cerebral cortex in four such cases. Three patients presented with severe language impairment but relatively good preservation of praxis and gnosis even after several years of clinical evolution. Cerebral autopsies of these cases revealed a predominant left hemisphere atrophy. Conversely, in one case with marked right hemisphere atrophy, all of the cognitive functions were involved early in the course of dementia. Neurofibrillary tangles and senile plaques were preferentially localized in the prefrontal, temporal and posterior parietal cortex in both hemispheres, whereas the hippocampal formation displayed lower lesion densities than neocortical areas. Significantly higher neurofibrillary tangle and senile plaque densities were found in the more atrophic side in most of the areas studied. The ratio of neurofibrillary tangle and senile plaque densities between the two hemispheres was not correlated with the number of these lesions in the cerebral cortex. These results indicate that the degenerative process in demented cases with interhemispheric asymmetric cerebral atrophy is characterized by a widespread involvement of the neocortex by senile lesions and lacks clear regional topography of neurofibrillary tangle and senile plaque distribution. Moreover, the relative sparing of the hippocampus, comparable to that found in cases with focal progressive dementia, suggests that the dementing process may involve different cortical structures in cases with asymmetric cerebral atrophy than in typical Alzheimer's disease cases.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0533
    Keywords: Key words Aluminum ; Fahr’s disease ; Laser ; microprobe mass analysis ; Mineralizations ; Trace ; elements
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a detailed analysis of the content of aluminum, iron, zinc, copper, calcium, and magnesium in the non-vascular and pericapillary mineralizations and the normal capillaries of the globus pallidus and dentate nucleus of the cerebellum in two patients with clinically and neuropathologically confirmed Fahr’s disease. The study employed laser microprobe mass analysis, a technique that enables highly sensitive detection of the levels of trace elements. In the globus pallidus, there was a significant increase in aluminum-, iron-, zinc-, and calcium-related peak intensity in the pericapillary and non-vascular mineralizations compared to the normal capillaries. The pericapillary and non-vascular mineralizations had comparable concentrations of these elements. No difference was found in copper levels between the different probe sites. Magnesium was almost absent in pericapillary mineralizations and normal capillaries, while it accumulated within non-vascular mineralizations. In the cerebellar dentate nucleus, non-vascular mineralizations displayed higher concentrations of all of these elements than normal capillaries, while pericapillary mineralizations had a higher aluminum and lower iron, copper, and calcium content than did non-vascular mineralizations. Zinc and magnesium were selectively deposited within the non-vascular mineralizations in this nucleus. Furthermore, the element composition of non-vascular mineralizations differed between the globus pallidus and dentate nucleus. These findings indicate that the formation of pericapillary and non-vascular mineralizations may be two independent phenomena which coexist in the course of Fahr’s disease. The marked qualitative and quantitative differences in trace element content in non-vascular mineralizations between the globus pallidus and cerebellar dentate nucleus suggest that the involvement of trace elements in the pathogenesis of Fahr’s disease is probably indirect.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Acta neuropathologica 88 (1994), S. 440-447 
    ISSN: 1432-0533
    Keywords: Senile plaques ; Neurofibrillary tangles ; Dementia ; Cortical atrophy ; Hemispheric specialization
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract To examine the clinicopathological correlations in rare Alzheimer's disease patients with asymmetric cerebral atrophy and to compare their pattern of cortical involvement by senile lesions with that observed in other cases with atypical Alzheimer's disease, we performed an extensive neuropathological analysis of the cerebral cortex in four such cases. Three patients presented with severe language impairment but relatively good preservation of praxis and gnosis even after several years of clinical evolution. Cerebral autopsies of these cases revealed a predominant left hemisphere atrophy. Conversely, in one case with marked right hemisphere atrophy, all of the cognitive functions were involved early in the course of dementia. Neurofibrillary tangles and senile plaques were preferentially localized in the prefrontal, temporal and posterior parietal cortex in both hemispheres, whereas the hippocampal formation displayed lower lesion densities than neocortical areas. Significantly higher neurofibrillary tangle and senile plaque densities were found in the more atrophic side in most of the areas studied. The ratio of neurofibrillary tangle and senile plaque densities between the two hemispheres was not correlated with the number of these lesions in the cerebral cortex. These results indicate that the degenerative process in demented cases with interhemispheric asymmetric cerebral atrophy is characterized by a widespread involvement of the neocortex by senile lesions and lacks clear regional topography of neurofibrillary tangle and senile plaque distribution. Moreover, the relative sparing of the hippocampus, comparable to that found in cases with focal progressive dementia, suggests that the dementing process may involve different cortical structures in cases with asymmetric cerebral atrophy than in typical Alzheimer's disease cases.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
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