Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Effect of Aloe on Learming and Memory lmpaiments in Dementia Animal Model SAMP8

치매동물모델 SAMP8에 있어서 기억. 학습장해에 미치는 알로에의 영향 III. SAMP8의 신경전달물질 및 그 대사산물에 미치는 알로에의 투여효과

  • 최진호 (부경대학교 식품생명과학과) ;
  • 김동우 (부경대학교 식품생명과학과) ;
  • 김재일 (부경대학교 식품생명과학과) ;
  • 한상섭 (한국화학연구소 안전성연구센터) ;
  • 심창섭 (김정문알로에기술연구소)
  • Published : 1996.06.01
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Abstract

Aloe(Aloe arborescens M$_{ILL}$) has been used as a home medicine for the past several thousand in the world, and has been studied on anti-bacterial and anti-fungal activities, hypotension, atherosclerosis, myocardiac infartion, apoplexy, diabetes as a chronic digenerative disease, tumors, gastrointestinal tract, liver and pancreas' diseases, and genitourinary tract etc. SAMP8 as a learing and memory impairment animal model were fed basic and/or experimental diets with 1.0% freezing dried(FD)-aloe for 8 months. The passive avoidance tests such as acqusition trial and retention test were significantly higher in aloe group than in control group. Grading score of senescence resulted in a marked decreases in aloe group compared with control group. Acetylcholinesterase(AChE) activity was remarkably increased in aloe group compared with control group. Neurotransmitters such as dopamine(DA) and serotonin(5-HT) almost did not change by the feeding of aloe-added diet, but their metabolites such as homovanillic acid(HVA) and 5-hydroxy-indole acetic acid(5-HIAA) in aloe group were significantly increased compared with control group. Therefore, the ratios of HVA/DA and 5-HIAA/5-HT as a ratio of metabolite on neurotransmitter were significantly increased by the feeding of aloe-added diet. These results suggest that aloe vara may be activated acetylcholinesterase, the metabolite of neurotransmitter, and ratios of metabolite on neurotransmitter, resulting ina greater prevention of learning and memory impairments such as Alzheimertype dementia.

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