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SIPPER TUBE ECONO 25 STRGHT E1027

SIPPER TUBE ECONO 25 STRGHT E1027

Company: VWR
Catalog#: 10718-330
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Sucrose Preference Test to Measure Stress-induced Anhedonia
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2016-06-05
[Abstract]  The 2-bottle choice procedure for assessing sucrose preference is a useful test to investigate anhedonia (i.e., inability to feel pleasure) in laboratory rodents, particularly in stress-based models of depression. The 2-bottle choice procedure allows for a comparison between behavioral preference for sucrose solution in drinking water compared to water only. Preference is measured by volume and/or weight of liquid consumed daily, which is then converted to a percent preference compared to a water only baseline period. Sucrose preference is attenuated by a diversity of chronic stressors, including chronic mild and unpredictable stress (Willner et al., 1992; Willner, 1997; Pothion et al., 2004) and social defeat stress (Krishnan et al., 2007). It may also ... [摘要]  用于评估蔗糖偏爱的2瓶选择程序是对实验室啮齿动物(特别是基于压力的抑郁症模型)中调查麻醉(即不能感觉到快感)的有用测试。 2瓶选择程序允许比较饮用水中蔗糖溶液与仅水相比的行为偏好。偏好是通过每天消耗的液体的体积和/或重量来测量的,然后将其与仅基准水平相比转化为偏好百分比。蔗糖偏好由多种慢性压力因子减弱,包括慢性轻度和不可预测的压力(Willner等,1992; Willner,1997; Pothion等,2004)和社会失败压力(Krishnan等,2007)。在药物成瘾的小鼠模型中也可能会受到干扰,因为在药物依赖个体中蔗糖的偏好被改变(Kampov-Polevoy等,1997; Bogucka-Bonikowska等,2002; Janowsky等,2003)。应激和药物诱导的蔗糖偏好改变可能源于奖励途径中的适应不良,其由从腹侧被盖区域延伸到伏隔核(NAc)的多巴胺能神经元组成。实际上,NAc中的环AMP反应元件结合蛋白(CREB)活性的改变成为蔗糖的优先选择(Barrot等,2002)。另外,NAc中的转录因子ΔFosB(Wallace等人,2008),但不是背海马(Eagle et al。,2015),调节了天然的回报,如蔗糖消耗。因此,以下描述的蔗糖偏好测试提供了一个经过验证的模型,用于评估特异性脑区和电路的脱落和功能。

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