Effect of atorvastatin on AGEs-induced injury of cerebral cortex via inhibiting NADPH oxidase -NF-κB pathway in ApoE-/- mice.

Molecular Biology Reports
zhenhan liBo Feng

Abstract

Advanced glycation end products (AGEs) are a group of modified proteins and/or lipids with damaging potential. AGEs-RAGE pathway plays a critical role to induce neurodegenerative encephalopathy. Statins can reduce the expression of AGEs-induced AGEs receptor (RAGE) in the aorta. It is not clear whether statins have potential benefits on AGEs-induced cognitive impairment. In this study, the effects of atorvastatin (ATV) on inflammation and oxidation stress in the cerebral cortex were investigated, and the underlying mechanisms were explored. Apolipoprotein E (ApoE)-/- male mice were divided into four groups: control, AGEs, AGEs + ALT711 (Alagebrium chloride) and AGEs + ATV. β-amyloid (Aβ) formation in the cerebral cortex was assessed through Congo red staining and the functional state of neurons was evaluated by Nissl's staining. Immunostaining was performed to assess the accumulation of AGEs in the cerebral cortex. The expressions of mRNA and protein of RAGE, Nuclear factor kappa B (NF-κB) p65 and Nicotinamide adenine dinucleotide phosphate-oxidase (NADPH oxidase) p47phox were detected by real-time polymerase chain reaction (PCR) and western blot. There were significant increases in AGEs deposit, Aβ formation, and the expressio...Continue Reading

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Methods Mentioned

BETA
optical microscopy
PCR
protein assay

Software Mentioned

SPSS
Image J
GraphPad Prism

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