Absence of aluminium in neuritic plaque cores in Alzheimer's disease
| Autor: | Frank Watt, J. P. Landsberg, Brendan McDonald |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
inorganic chemicals
Pathology medicine.medical_specialty Multidisciplinary business.industry chemistry.chemical_element Hippocampus medicine.disease complex mixtures medicine.anatomical_structure Degenerative disease chemistry Cerebral cortex Aluminium medicine Immunohistochemistry Dementia Senile plaques Alzheimer's disease business |
| Zdroj: | Nature. 360:65-68 |
| ISSN: | 1476-4687 0028-0836 |
| DOI: | 10.1038/360065a0 |
| Popis: | Controversy exists over whether aluminium has a role in the aetiology of Alzheimer's disease. Alzheimer's disease is neuropathologically characterized by the occurrence of a minimum density of neurofibrillary tangles and neuritic plaques in the hippocampus and the association cortex of the brain. The purported association of aluminium with Alzheimer's disease is based on: (1) the experimental induction of fibrillary changes in the neurons of animals by the injection of aluminium salts into brain tissue; (2) reported detection of aluminium in neuritic plaques and tangle-bearing neurons; (3) epidemiological studies linking aluminium levels in the environment, notably water supplies, with an increased prevalence of dementia; and (4) a reported decrease in the rate of disease progression following the administration of desferroxamine, an aluminium chelator, to clinically diagnosed sufferers of Alzheimer's disease. Here we use nuclear microscopy, a new analytical technique involving million-volt nuclear particles, to identify and analyse plaques in postmortem tissue from patients with Alzheimer's disease without using chemical staining techniques and fail to demonstrate the presence of aluminium in plaque cores in untreated tissue. |
| Databáze: | OpenAIRE |
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