스코폴아민을 이용한 치매 동물 모델 연구

• 영문명: A Study on the Animal Model for Dementia Induced by Scopolamine
• 발행기관: 한국교원대학교 뇌기반교육연구소
• 저자명: 윤은정(Eun-Jung Yoon) 최윤서(Yunseo Choi) 박동선(Dongsun Park)
• 간행물 정보: 『Brain, Digital, & Learning』제12권 제1호, 131~142쪽, 전체 12쪽
• 주제분류: 사회과학 > 교육학
• 파일형태: PDF
• 발행일자: 2022.03.31

영문 초록

This study aimed to determine dose of scopolamine to induce cognitive and memory dysfunction in rat. Six-week-old male rats (n=20) were randomly divided four groups. Scopolamine bromide (0, 0.5, 1.0 and 2.0 mg/kg) was intraperitoneally injected for 7 days. From 4-7 days after injection, the rats were performed memory test by water maze and passive avoidance test. On the 8th day, the rats were sacrificed, then acetylcholinesterase (AChE) activity, cholinergic proteins and inflammatory mediators were analyzed from their brain tissue. In the memory test and AChE activity, the group of scopolamine treatment (0.5 mg/kg) showed no significant difference compared to the control group (0 mg/kg). But, they showed significant differences compared to the control group in expression of choline transporter, choline acetyltransferase, and vesicular acetylcholine transporter protein and nuclear factor kappa B, tumor necrosis factor-α, interLeukin-6, inducible nitric oxide synthase, and cyclooxygenase2 mRNA. Also, the groups of scopolamine treatment (1.0 and 2.0 mg/kg) showed significant differences compared to the control group in memory test, AChE activity, expression of cholinergic proteins and inflammatory mediators mRNA. Therefore, it was suggested that 1.0 mg/kg of scopolamine is adequate dose to induce cognitive and memory dysfunction in rats.

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키워드

AChE activity cholinergic system dementia inflammation memory deficit scopolamine dose