{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T14:05:52Z","timestamp":1791295552452,"version":"4.1.0"},"reference-count":76,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2002,10,15]],"date-time":"2002-10-15T00:00:00Z","timestamp":1034640000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Neuroscience Research"],"published-print":{"date-parts":[[2003,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Several neurodegenerative disorders such as Parkinson's Disease (PD) and Alzheimer's Disease (AD) are associated with elevated brain iron accumulation relative to the amount of ferritin, the intracellular iron storage protein. The accumulation of more iron than can be adequately stored in ferritin creates an environment of oxidative stress. We developed a heavy chain (H) ferritin null mutant in an attempt to mimic the iron milieu of the brain in AD and PD. Animals homozygous for the mutation die in utero but the heterozygotes (+\/\u2212) are viable. We examined heterozygous and wild\u2010type (wt) mice between 6 and 8 months of age. Macroscopically, the brains of +\/\u2212 mice were well formed and did not differ from control brains. There was no evidence of histopathology in the brains of the heterozygous mice. Iron levels in the brain of the +\/\u2212 and wild\u2010type (+\/+) mice were similar, but +\/\u2212 mice had less than half the levels of H\u2010ferritin. The other iron management proteins transferrin, transferrin receptor, light chain ferritin, Divalent Metal Transporter 1, ceruloplasmin, were increased in the +\/\u2212 mice compared to +\/+ mice. The relative amounts of these proteins in relation to the iron concentration are similar to that found in AD and PD. Thus, we hypothesized that the brains of the heterozygote mice should have an increase in indices of oxidative stress. In support of this hypothesis, there was a decrease in total superoxide dismutase (SOD) activity in the heterozygotes coupled with an increase in oxidatively modified proteins. In addition, apoptotic markers Bax and caspase\u20103 were detected in neurons of the +\/\u2212 mice but not in the wt. Thus, we have developed a mouse model that mimics the protein profile for iron management seen in AD and PD that also shows evidence of oxidative stress. These results suggest that this mouse may be a model to determine the role of iron mismanagement in neurodegenerative disorders and for testing antioxidant therapeutic strategies. \u00a9 2002 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/jnr.10463","type":"journal-article","created":{"date-parts":[[2002,12,12]],"date-time":"2002-12-12T14:10:15Z","timestamp":1039702215000},"page":"46-63","source":"Crossref","is-referenced-by-count":151,"title":["Mouse brains deficient in H\u2010ferritin have normal iron concentration but a protein profile of iron deficiency and increased evidence of oxidative 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