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논문 기본 정보

자료유형
학술저널
저자정보
Ko, Sang Yoon (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Lee, Hyung Eun (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Park, Se Jin (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Jeon, Se Jin (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Kim, Boseong (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Gao, Qingtao (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Jang, Dae Sik (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University) Ryu, Jong Hoon (Department of Life and Nanopharmaceutical Science, College of Pharmacy, Kyung Hee University)
저널정보
한국응용약물학회 Biomolecules & Therapeutics(구 응용약물학회지) Biomolecules & therapeutics 제23권 제2호
발행연도
2015.1
수록면
156 - 164 (9page)

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Alzheimer's disease (AD) is a neurodegenerative disorder associated with progressive memory loss and neuronal cell death. Although numerous previous studies have been focused on disease progression or reverse pathological symptoms, therapeutic strategies for AD are limited. Alternatively, the identification of traditional herbal medicines or their active compounds has received much attention. The aims of the present study were to characterize the ameliorating effects of spinosin, a C-glucosylflavone isolated from Zizyphus jujuba var. spinosa, on memory impairment or the pathological changes induced through amyloid-${\beta}_{1-42}$ oligomer ($A{\beta}O$) in mice. Memory impairment was induced by intracerebroventricular injection of $A{\beta}O$ ($50{\mu}M$) and spinosin (5, 10, and 20 mg/kg) was administered for 7 days. In the behavioral tasks, the subchronic administration of spinosin (20 mg/kg, p.o.) significantly ameliorated $A{\beta}O$-induced cognitive impairment in the passive avoidance task or the Y-maze task. To identify the effects of spinosin on the pathological changes induced through $A{\beta}O$, immunohistochemistry and Western blot analyses were performed. Spinosin treatment also reduced the number of activated microglia and astrocytes observed after $A{\beta}O$ injection. In addition, spinosin rescued the $A{\beta}O$-induced decrease in choline acetyltransferase expression levels. These results suggest that spinosin ameliorated memory impairment induced through $A{\beta}O$, and these effects were regulated, in part, through neuroprotective activity via the anti-inflammatory effects of spinosin. Therefore, spinosin might be a useful agent against the amyloid ${\beta}$ protein-induced cognitive dysfunction observed in AD patients.

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