The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
mu ti qian bao lu dui zi shu xue xi he ji yi de chi xu xing xiao ying yan jiu
Author(s): 
Pages: 155-156
Year: Issue:  2
Journal: JOURNAL OF HYGIENE RESEARCH

Keyword:  铅暴露子代学习记忆;
Abstract: 为研究母体铅暴露对大鼠子代学习和记忆发育的持续性效应,将孕鼠随机分为4组,从孕期第1天至仔鼠出生第20天断乳分别饮用双蒸水、200、100和50mg/L醋酸铅溶液.水迷宫测试20天龄仔鼠学习能力;Y迷宫测试20天龄、40天龄、60天龄仔鼠主动学习和记忆能力.结果显示,(1)仔鼠水迷宫错误次数随母鼠铅暴露剂量增加而增加,中、高剂量组明显低于对照组;其逃避潜伏期则不明显,只有高剂量组低于对照组.(2)各剂量组仔鼠Y迷宫0min、10min、24h逃避达标率20天龄时最低,停止染毒20、40天后虽有所恢复,但与对照组相比仍有显著性差异.结论: (1)母体铅暴露先损伤仔鼠的学习和记忆能力,其次损伤运动能力.(2)母体铅暴露可损伤仔鼠的空间学习和记忆能力,停止染毒后虽有一定恢复但损伤仍然存在.
Related Articles
No related articles found