天然产物研究与开发 ›› 2017, Vol. 29 ›› Issue (7): 1199-1203.doi: 10.16333/j.1001-6880.2017.7.021

• 开发研究 • 上一篇    下一篇

叶酸对PCPA抑郁小鼠外侧缰核β-CaMK II水平的影响

高良才*,刘鑫男,李蔚然,边靖文,张燕,刘锦频   

  1. 华东师范大学生命科学学院,上海 200241
  • 出版日期:2017-07-29 发布日期:2017-08-11

Effects of Folic Acid on the Level of β-CaMK II in Lateral Habenular Nucleus of PCPA Depression Mice

GAO Liang-cai*,LIU Xin-nan,LI Wei-ran,BIAN Jing-wen,ZHANG Yan,LIU Jin-pin   

  1. East China Normal University,Shanghai 200241,China
  • Online:2017-07-29 Published:2017-08-11

摘要: 为探究叶酸对PCPA抑郁症模型小鼠的干预作用及其对外侧缰核β-CaMK II水平的影响,将昆明种小鼠40只随机分为三组:对照组、模型组、叶酸组,通过腹腔注射PCPA(100 mg/kg)每日1次,连续4 d构建抑郁症模型,旷场与悬尾实验观察小鼠行为变化,HPLC检测小鼠下丘脑5-HT含量,免疫组化测定小鼠外侧缰核β-CaMK II表达水平。结果显示,模型组与对照组相比自主活动能力下降,悬尾不动时间延长(P<0.05),而叶酸组与对照组相比上述实验结果无统计学差异(P>0.05)。模型组与对照组相比下丘脑5-HT含量降低,外侧缰核β-CaMK II表达水平下降(P<0.05)。结果表明叶酸能显著提高下丘脑5-HT含量与外侧缰核β-CaMK II水平,其抗抑郁作用机制可能与之有关。

关键词: 叶酸, 抑郁症, PCPA, &beta, -钙调蛋白激酶

Abstract: To assess the effects of folic acid and the levels of β-CaMK II in lateral habenular nucleus of PCPA depression mice.40 Kuming mice were randomly divided into control group,model group and folic acid group.The mice were intraperitoneally injected by PCPA once a day over a period of 4d to construct depression model.Then the changes in behaviors were observed.The level of 5-HT in the hypothalamus was detected by HPLC and the expression of β-CaMK II in the lateral habenular nucleus was verified by immunohistochemistry.Compared with model group,the locomotor activity was significantly increased (P<0.05) and the immobility time of tail suspension was obviously reduced in folic acid treatment groups (P<0.05).The level of 5-HT in the hypothalamus was detected by HPLC and the expression of β-CaMK II in the Lateral habenular nucleus were significantly decreased (P<0.05).The results indicated that folic acid can significantly increase hypothalamus 5-HT and lateral habenular nucleus β-CaMK II,which could be the mechanism of antidepressant effect of folic acid.

Key words: folic acid, depression, PCPA, &beta, -CaMK II