PMID- 20816828 OWN - NLM STAT- MEDLINE DCOM- 20101112 LR - 20220321 IS - 1090-2430 (Electronic) IS - 0014-4886 (Linking) VI - 226 IP - 2 DP - 2010 Dec TI - Atorvastatin prevents hippocampal cell death, neuroinflammation and oxidative stress following amyloid-beta(1-40) administration in mice: evidence for dissociation between cognitive deficits and neuronal damage. PG - 274-84 LID - 10.1016/j.expneurol.2010.08.030 [doi] AB - The accumulation of amyloid-beta (Abeta) peptides in the brain of human and rodents has been associated with the activation of glial cells, neuroinflammatory and oxidative responses, and cognitive deficits. These oxidative changes leave glutamate transporters more vulnerable and may result in reduction of their functions, resulting in excitotoxic damage. Herein, we evaluated the effects of atorvastatin, a HMG-CoA reductase inhibitor, in molecular and behavioral alterations induced by a single intracerebroventricular injection of aggregated Abeta(1-40) (400 pmol) in mice. An increased glial fibrillar acidic protein (GFAP) expression and cyclooxygenase-2 (COX-2) levels, as well as increased lipid peroxidation and impairment in the glutathione antioxidant system and cell degeneration was found in the hippocampus of Abeta(1-40)-treated mice. Abeta(1-40) also induced a marked decrease in glutamatergic transporters (GLAST and GLT-1) expression and in l-[(3)H] glutamate uptake in mice hippocampus, in addition to spatial learning and memory deficits. Atorvastatin (10 mg/kg/day v.o.) was administered after Abeta(1-40) injection and through seven consecutive days. Atorvastatin treatment was neuroprotective against cell degeneration induced by Abeta(1-40), reducing inflammatory and oxidative responses and increasing the expression of glutamatergic transporters. On the other hand, atorvastatin did not reverse the cognitive impairments and failed to alter the hippocampal glutamate uptake in Abeta(1-40)-treated mice. These results reinforce and extend the notion of the potential neuroprotective action of atorvastatin against the neuronal toxicity induced by Abeta(1-40). In addition, the present findings suggest that the spatial learning and memory deficits induced by Abeta peptides in rodents may not be entirely related to neuronal damage. CI - Copyright (c) 2010 Elsevier Inc. All rights reserved. FAU - Piermartiri, Tetsade C B AU - Piermartiri TC AD - Departamento de Bioquimica, Centro de Ciencias Biologicas, Universidade Federal de Santa Catarina, Trindade, 88040-900 Florianopolis, SC, Brazil. FAU - Figueiredo, Claudia P AU - Figueiredo CP FAU - Rial, Daniel AU - Rial D FAU - Duarte, Filipe S AU - Duarte FS FAU - Bezerra, Sarah C AU - Bezerra SC FAU - Mancini, Gianni AU - Mancini G FAU - de Bem, Andreza F AU - de Bem AF FAU - Prediger, Rui D S AU - Prediger RD FAU - Tasca, Carla I AU - Tasca CI LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100915 PL - United States TA - Exp Neurol JT - Experimental neurology JID - 0370712 RN - 0 (Amino Acid Transport System X-AG) RN - 0 (Amyloid beta-Peptides) RN - 0 (Fluoresceins) RN - 0 (Heptanoic Acids) RN - 0 (Hydroxymethylglutaryl-CoA Reductase Inhibitors) RN - 0 (Nerve Tissue Proteins) RN - 0 (Organic Chemicals) RN - 0 (Peptide Fragments) RN - 0 (Pyrroles) RN - 0 (amyloid beta-protein (1-40)) RN - 0 (fluoro jade) RN - 10028-17-8 (Tritium) RN - 36015-30-2 (Propidium) RN - 3KX376GY7L (Glutamic Acid) RN - A0JWA85V8F (Atorvastatin) RN - EC 1.11.1.9 (Glutathione Peroxidase) RN - EC 1.14.99.- (Ptgs2 protein, mouse) RN - EC 1.14.99.1 (Cyclooxygenase 2) RN - EC 1.8.1.7 (Glutathione Reductase) RN - GAN16C9B8O (Glutathione) SB - IM EIN - Exp Neurol. 2021 Nov;345:113840. PMID: 34417015 MH - Amino Acid Transport System X-AG/metabolism MH - Amyloid beta-Peptides/*toxicity MH - Analysis of Variance MH - Animals MH - Animals, Newborn MH - Astrocytes/drug effects MH - Atorvastatin MH - Cell Death/drug effects MH - Cyclooxygenase 2/metabolism MH - *Encephalitis/chemically induced/pathology/prevention & control MH - Fluoresceins MH - Gene Expression Regulation/drug effects MH - Glutamic Acid/metabolism MH - Glutathione/metabolism MH - Glutathione Peroxidase/metabolism MH - Glutathione Reductase/metabolism MH - Heptanoic Acids/*pharmacology MH - Hippocampus/*pathology MH - Humans MH - Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology MH - In Vitro Techniques MH - Learning Disabilities/chemically induced/drug therapy MH - Male MH - Maze Learning/drug effects MH - Memory Disorders/chemically induced/drug therapy MH - Mice MH - Nerve Tissue Proteins/metabolism MH - Neurons/*drug effects MH - Organic Chemicals MH - Oxidative Stress/*drug effects MH - Peptide Fragments/*toxicity MH - Propidium MH - Pyrroles/*pharmacology MH - Tritium/metabolism EDAT- 2010/09/08 06:00 MHDA- 2010/11/13 06:00 CRDT- 2010/09/07 06:00 PHST- 2010/02/01 00:00 [received] PHST- 2010/08/24 00:00 [revised] PHST- 2010/08/26 00:00 [accepted] PHST- 2010/09/07 06:00 [entrez] PHST- 2010/09/08 06:00 [pubmed] PHST- 2010/11/13 06:00 [medline] AID - S0014-4886(10)00329-8 [pii] AID - 10.1016/j.expneurol.2010.08.030 [doi] PST - ppublish SO - Exp Neurol. 2010 Dec;226(2):274-84. doi: 10.1016/j.expneurol.2010.08.030. Epub 2010 Sep 15.