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丰富环境对快速老化小鼠SAMP8情感的影响

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目的:探讨丰富环境对快速老化小鼠SAMP8情感的影响.方法:3 mo龄SAMP8小鼠和3 mo龄SAMRI小鼠随机分为丰富环境组(n=16)和标准环境组(n=10),饲养3 mo后用高架十字迷宫实验评测小鼠的情感改变.用RT-PCR方法检测小鼠海马脑源性神经生长因子(BDNF)的表达.结果:丰富环境组小鼠进入开放臂次数比例(OE%)及在开放臂停留的时间(OT%)比例均明显高于标准环境组(P<0.01).丰富环境组海马BDNF mRNA的表达明显高于标准环境组(P<0.01).结论:丰富环境能提高SAMP8小鼠海马BDNF mRNA的表达,并对SAMP8小鼠的精神行为具有干预作用,降低SAMP8小鼠的焦虑行为.
Effect of enriched environment on emotional behaviour in senescence accelerated-prone mice 8
AIM: To explore the effect of enriched environment on emotional behaviour in senescence accelerated-prone mice 8 (SAMP8). METHODS: Three-month female SAMP8 and 3-month female senescence accelerated-resistant mice1 (SAMR1) were divided into Enriched Environment (EE) group (n = 16) and Standard Environment (SE) group (n = 10) by random. After 3 months, the emotional behaviour was tested by Elevated Plus-Maze(EPM) and brain derived neurotrophic factor(BDNF) mRNA expression in hippocampus was tested by RT-PCR. RESULTS: EE mice had higher open arm entry percentage (OE%) and open arm time percentage(OT%) compared with SE mice (P < 0.01). EE mice had higher BDNF mRNA expression in hippocampus compared with SE mice (P < 0.01). CONCLUSION: EE could improve BDNF mRNA expression in hippocampus of SAMP8. EE also could change the emotional behaviour, which showed that EE could reduce the anxiety behaviour of SAMP8.

enriched environmentSAMP8elevated plusmazeBDNFemotion

苑振云、顾平、刘力、崔冬生、刘静、王彦永、耿媛、朱爱萍、马琳、王铭维

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河北医科大学第一医院,急诊科,河北,石家庄,050031

河北医科大学第一医院,河北省脑老化与认知神经科学实验室,河北,石家庄,050031

河北医科大学第一医院,神经内科,河北,石家庄,050031

丰富环境 快速老化小鼠P8 高架十字迷宫 脑源性神经生长因子 情感

河北省自然科学基金

C2009001242

2009

第四军医大学学报
第四军医大学

第四军医大学学报

CSTPCDCSCD北大核心
影响因子:0.599
ISSN:1000-2790
年,卷(期):2009.30(20)
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