长期低剂量饮水砷暴露对小鼠认知功能的影响  被引量:1

Effects of long-term low-level arsenic exposure through drinking water on cognitive learning in mice

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作  者:杨鹏翔[1] 接晶[2] 杨悦[1] 袁丽丽[1] 孙洪娜[3] 杨艳梅[3] 

机构地区:[1]哈尔滨医科大学肿瘤防治研究所,哈尔滨150086 [2]吉林大学基础医学院,长春130021 [3]哈尔滨医科大学中国疾病预防控制中心地方病控制中心中心实验室,哈尔滨150081

出  处:《中华地方病学杂志》2016年第4期260-263,共4页Chinese Journal of Endemiology

基  金:国家自然科学基金(81372939);黑龙江省应用技术与开发项目(PC13S17);黑龙江省普通高校病因流行病学重点实验室开放课题(2012-8);黑龙江省科研计划项目(2014-20)

摘  要:目的观察长期低剂量饮水砷暴露对不同代次C3H和Balb/c小鼠学习认知能力的影响。方法选取C3H和Balb/c小鼠(雌鼠各20只,雄鼠各10只),自由饮用0(对照组)、85mg/L亚砷酸钠(NaAsO2)溶液(砷暴露组),并连续传代(F)。分别选取对照组和砷暴露F1、F2、F3、F4代的C3H和Balb/c小鼠,每组8只。通过Morris水迷宫,测定小鼠空间记忆能力(第1、2、3、4、5天测定登上平台的潜伏期)和空间探索能力(第6天测定穿越目标区域平均次数).SPSS18.0软件进行统计分析。结果第1、2、3、4、5天C3H小鼠潜伏期对照组为48.09±47.34±45.54±46.16±46.47±2.63)、(46.09±3.27)、(42.72±3.29)、(39.31±2.69)、(36.75±3.92)S;F1代为(49.59±3.293.01)、(44.28±6.58)、(44.50±1.67)、(42.16±2.27)S;F2代为(51.41±0.78)、(48.88±1.451.46)、(43.94±1.69)、(42.22±3.27)s;F3代为(50.91±4.20)、(49.78±5.18)、 (48.03±3.45)、(46.16±4.42)、(44.06±1.04)s;F4代为(52.66±4.60)、(52.38±5.78)、(49.06±1.22)、(47.69±2.34)、(46.47±1.56)s。Balb/c小鼠潜伏期对照组为(50.91±2.84)、(47.03±4.22)、(45.56±4.53)、(39.72±5.90)、(36.22±4.85)s;F1代为(50.47±3.20)、(48.25±6.53)、(47.13±1.25)、(43.72±4.27)、(40.66±4.52)s;F2代为(51.31±4.73)、(48.88±1.53)、(46.56±1.43)、(44.25±1.16)、(41.20±3.79)s;F3代为(51.72±3.54)、(50.78±4.45)、(45.03±3.56)、(41.19±5.63)、(42.81±6.29)s;F4代为(53.34±4.60)、(52.34±2.77)、(48.72±5.92)、(46.97±7.38)、(44.94±1.75)s。第4、5天F1、F2、F3、F4代C3H小鼠潜伏期与同时间对照组比Objective To observe the effects of long-term low dose arsenic exposure through drinking water on learning ability of different generations of C3H and Balb/c mice. Methods Mice (C3H and Balb/c) were exposed to arsenic at 0 mg/L (control) and 85 mg/L (20 female mice and 10 male mice per group). The control group and F1, F2, F3 and F4 mice were selected and divided into 5 experimental groups, 8 mice in each group. Their offsprings were detected by the Morris water maze test (the average escape latency of 1 to 5 days) and spatial probe test (the times of through target area on the sixth day). Statistical analysis was performed with SPSS 18.0 software. Results The average escape latencies of 1 to 5 days in C3H control group were (48.09 ± 2.63), (46.09 ± 3.27), (42.72 ± 3.29), (39.31 ± 2.69) and (36.75 ± 3.92) s, F1 were (49.59 ± 3.29), (47.34 ± 3.01), (44.28 ± 6.58), (44.50 ± 1.67) and (42.16 ± 2.27) s, F2 were (51.41 ± 0.78), (48.88± 1.45), (45.54 ± 1.46), (43.94 ± 1.69) and (42.22 ± 3.27) s, F3 were (50.91 ± 4.20), (49.78 ± 5.18), (48.03 ± 3.45), (46.16 ± 4.42) and (44.06 ± 1.04) s, F4 were (52.66 ± 4.60), (52.38 ± 5.78), (49.06 ± 1.22), (47.69 ± 2.34) and (46.47 ± 1.56) s. The average escape latencies of Balb/c control group were (50.91 ± 2.84), (47.03 ± 4.22), (45.56 ± 4.53), (39.72 ± 5.90) and (36.22 ± 4.85) s, F± were (50.47 _± 3.20), (48.25 ± 6.53), (47.13 ± 1.25), (43.72 ± 4.27) and (40.66 ± 4.52) s, F2 were (51.31 ± 4.73), (48.88 ± 1.53), (46.56 ± 1.43), (44.25 ± 1.16) and (41.20 ± 3.79) s, F3 were (51.72 ± 3.54), (50.78 ± 4.45), (45.03 ± 3.56), (41.19 ± 5.63) and (42.81 ± 6.29) s, F4 were (53.34 ± 4.60), (52.34 ± 2.77), (48.72 ± 5.92), (46.97 ± 7.38) and (44.94 ± 1.75) s. On the fourth and fifth days of F1, F2, 173 and F4 generations of C3H,

关 键 词:饮水  连续传代 水迷学习 

分 类 号:R599.1[医药卫生—内科学]

 

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