Simultaneous changes of spatial memory and spine density after intrahippocampal administration of fibrillar a β 1-42 to the rat brain

Emke Borbély, János Horváth, Szabina Furdan, Zsolt Bozsó, Botond Penke, Lívia Fülöp

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Several animal models of Alzheimer's disease have been used in laboratory experiments. Intrahippocampal injection of fibrillar amyloid-beta (fAβ) peptide represents one of the most frequently used models, mimicking Aβ deposits in the brain. In our experiment synthetic fAβ 1-42 peptide was administered to rat hippocampus. The effect of the Aβ peptide on spatial memory and dendritic spine density was studied. The fAβ 1-42-treated rats showed decreased spatial learning ability measured in Morris water maze (MWM). Simultaneously, fAβ 1-42 caused a significant reduction of the dendritic spine density in the rat hippocampus CA1 region. The decrease of learning ability and the loss of spine density were in good correlation. Our results prove that both methods (MWM and dendritic spine density measurement) are suitable for studying Aβ-triggered neurodegeneration processes.

Original languageEnglish
Article number345305
JournalBioMed research international
Publication statusPublished - 2014


ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Immunology and Microbiology(all)

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