PMID- 22732109 OWN - NLM STAT- MEDLINE DCOM- 20121129 LR - 20181201 IS - 1743-1328 (Electronic) IS - 0161-6412 (Linking) VI - 34 IP - 6 DP - 2012 Jul TI - Atorvastatin and pitavastatin reduce senile plaques and inflammatory responses in a mouse model of Alzheimer's disease. PG - 601-10 LID - 10.1179/1743132812Y.0000000054 [doi] AB - OBJECTIVES: To examine and compare the pleiotropic anti-inflammatory effects and the long-term effects of atorvastatin and pitavasatin in mouse model of Alzheimer's disease (AD). METHODS: We examined the effects of two strong statins on senile plaque (SP) size and inflammatory responses in the brain of an amyloid precursor protein (APP) transgenic (Tg) mouse. We gave the Tg mice either atorvastatin or pitavastatin from 5-20 months of age, and performed immunohistological analysis [SP area, monocyte chemotactic protein 1 (MCP-1)-positive neurons, ionized calcium-binding adaptor molecule 1 (Iba-1)-1-positive microglia, and tumor necrosis factor alpha (TNF-alpha)-positive neurons] every 5 months. RESULTS: In the APP-Tg mice treated with both statins, the number of MCP-1-positive neurons was reduced at 10 months, that of Iba-1-positive microglia was reduced at 15 months, and that of TNF-alpha-positive neurons and the mean total SP area decreased at 15-20 months, compared with APP-Tg mice with vehicle treatment. DISCUSSION: The protective effect of these statins took 5 months to reach significance in these mice, and the order of sensitivity to statin treatment was MCP-1>Iba-1>TNF-alpha>SPs. Proinflammatory responses including MCP-1, Iba-1, and TNF-alpha preceded and possibly contributed to SP formation. Pitavastatin has the same significant pleiotrophic effect to prevent and ameliorate inflammation and also has a long-term effect compared with atorvastatin, and both of them have high potential for a preventative approach in patients at risk of AD. FAU - Kurata, Tomoko AU - Kurata T AD - Okayama University, Japan. FAU - Miyazaki, Kazunori AU - Miyazaki K FAU - Kozuki, Miki AU - Kozuki M FAU - Morimoto, Nobutoshi AU - Morimoto N FAU - Ohta, Yasuyuki AU - Ohta Y FAU - Ikeda, Yoshio AU - Ikeda Y FAU - Abe, Koji AU - Abe K LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120622 PL - England TA - Neurol Res JT - Neurological research JID - 7905298 RN - 0 (Heptanoic Acids) RN - 0 (Hydroxymethylglutaryl-CoA Reductase Inhibitors) RN - 0 (Pyrroles) RN - 0 (Quinolines) RN - A0JWA85V8F (Atorvastatin) RN - M5681Q5F9P (pitavastatin) SB - IM MH - Alzheimer Disease/metabolism/*pathology MH - Animals MH - Atorvastatin MH - Brain/drug effects/*pathology MH - Disease Models, Animal MH - Female MH - Heptanoic Acids/*pharmacology MH - Hydroxymethylglutaryl-CoA Reductase Inhibitors/*pharmacology MH - Immunohistochemistry MH - Inflammation/metabolism/pathology MH - Mice MH - Mice, Transgenic MH - Plaque, Amyloid/metabolism/*pathology MH - Pyrroles/*pharmacology MH - Quinolines/*pharmacology EDAT- 2012/06/27 06:00 MHDA- 2012/12/10 06:00 CRDT- 2012/06/27 06:00 PHST- 2012/06/27 06:00 [entrez] PHST- 2012/06/27 06:00 [pubmed] PHST- 2012/12/10 06:00 [medline] AID - ner2815 [pii] AID - 10.1179/1743132812Y.0000000054 [doi] PST - ppublish SO - Neurol Res. 2012 Jul;34(6):601-10. doi: 10.1179/1743132812Y.0000000054. Epub 2012 Jun 22.