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作 者:于琳[1] 曹爱华[1] 吕孝娜[1] 雷革非[1]
机构地区:[1]山东大学齐鲁医院儿童医疗中心神经科,济南250012
出 处:《中华行为医学与脑科学杂志》2011年第9期800-802,共3页Chinese Journal of Behavioral Medicine and Brain Science
摘 要:目的探讨高选择性多巴胺D4受体激动剂ABT.724对注意缺陷多动障碍(ADHD)动物模型自发性高血压大鼠(SHR)的行为所产生的影响。方法将哌甲酯(5mg/kg)及三种不同剂量的ABT-724(0.04mg/kg,0.16mg/kg,0.64mg/kg)干预SHR大鼠,并利用开场试验、Morris水迷宫、Lat迷宫对SHR大鼠进行行为学检测,观察SHR大鼠的行为。结果哌甲酯及ABT-724干预后的SHR大鼠穿越格子数[分别为(70.67±8.59)个,(76.50±10.75)个,(79.17±10.44)个,(65.67±20.62)个]较盐水组大鼠[(130.33±11.40)个]减少,且差异有显著性(P〈0.05);在Morris水迷宫中,干预后的SHR大鼠空间记忆能力[分别为(52.50±4.04)s,(52.17±2.99)S,(61±8.15)s,(53.83±9.87)S]与盐水组大鼠[(38.83±7.17)S]相比有所提高,差异有统计学意义(P〈0.05);在LOt迷宫中,干预后的SHR大鼠直立次数[分别为(57.17±5.67)次,(60.83±8.28)次,(55.17±9.45)次,(65.33±9.50)次]与盐水组大鼠[(78.00±13.84)次]相比减少,差异显著(P〈0.05)。结论ABT-724可改善SHR大鼠的自发活动水平、认知功能和非选择性注意力。Objective To investigate the effects of a highly selective dopamine D4 receptor (ABT-724) on behaviors in Spontaneously hypertensive rats (SHR) , a rat model of attention-deficit hyperactivity disorder (ADHD). Methods After intervention of methylphenidate(Smg/kg) and three different doses of ABT-724(0.04 mg/kg, 0.16mg/kg, 0.64mg/kg) , behaviors of SHR were verified by open-field test, Morris water maze and Lat maze. Results Number of square crossing after intervention of methylphenidate and ABT-724 in SHR(70.67 ± 8. 59,76.50± 10.75,79.17 ± 10.44,65.67± 20.62) was less than the saline control group( 130.33 ± 11.40) (P〈 0.05 ). During Morris water maze, SHRs ( 52.50 ± 4.04,52.17 ± 2.99,61 ± 8.15,53.83 ± 9.87 ) after intervention of both had a better spatial memory ability than control group(38.83± 7.17) (P 〈 0. 05 ). In Lat maze, number of rearing after intervention of both in SHRs (57.17 ± 5.67,60.83 ± 8.28,55.17±9.45,65.33 ± 9.50 ) was less than saline c?ntrol group(78.00 ± 13.84) (P 〈 0. 05 ). Conclusion ABT-724 could improve behaviors of spontaneous locomotor activity, cognitive ability, non-selective attention in SHR.
关 键 词:ABT-724 SHR大鼠 自发活动 认知 非选择性注意力
分 类 号:R749.94[医药卫生—神经病学与精神病学]
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