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The investigation of the role of abnormal copper level in the development of neuropathological damage is essential for the understanding of pathogenetic mechanisms of these neurodegenerative disorders. Using a mouse model of perinatally induced copper deficiency, the present study analysed the response of neuronal and glial cells to copper deficiency from infancy to young adult age. In mice born and maintained after weaning on copper\u2010deficient diet, copper measurements indicated that at 6\u20138\u2003weeks the copper levels in the brain were decreased by about 80% with respect to controls. In the brain of copper\u2010deficient mice, microglial and astrocytic activation was observed, mostly in the cerebral cortex and thalamus. In addition, small vacuolated globoid cells confined to the subgranular zone of the dentate gyrus were found in the third postnatal week, and larger vacuolar profiles, identified as neuronal vacuoles, were observed in layer V of the cortex after the fourth week. The spatial distribution and temporal onset of vacuolation appeared to be unrelated to those of activated microglia and astrocytes. Nitrotyrosine\u2010positivity was found to reflect the distribution of vacuoles in the cortex. The specific histopathological features here reported, as well as the severity of neurological deficits observed in this murine model of copper deficiency, strongly suggest that some hallmarks of neurodegenerative disorders could be mediated by multifactorial pathogenetic mechanisms that include copper dysregulation.<\/jats:p>","DOI":"10.1111\/j.1365-2990.2006.00793.x","type":"journal-article","created":{"date-parts":[[2007,1,22]],"date-time":"2007-01-22T11:07:55Z","timestamp":1169464075000},"page":"212-225","source":"Crossref","is-referenced-by-count":60,"title":["Copper deficiency elicits glial and neuronal response typical of neurodegenerative disorders"],"prefix":"10.1111","volume":"33","author":[{"given":"G. 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