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Influence of prenatal depression on TPH2 expression in median raphe nuclei of rats
Author(s): XU Xiao-ming, LI Qiu-ling, NA Quan, CUI Hong, LIU Cai-xia
Pages: 37-
40
Year: 2011
Issue:
9
Journal: Journal of Shandong University(Health Sciences)
Keyword: 妊娠; 抑郁症; 色氨酸羟化酶2; 中缝核; 大鼠; Wistar;
Abstract: 目的探讨妊娠期抑郁症对大鼠中缝核色氨酸羟化酶2(TPH2)表达的影响。方法选取月龄、体质量相近的Wistar大鼠,合笼受孕后将孕鼠随机分为实验组、对照组。实验组给予18 d慢性不可预见性的温和应激(CUMS)制备妊娠期抑郁症大鼠模型,对照组在正常条件下饲养。采用旷场实验和1%蔗糖水偏爱实验对大鼠进行行为学评分,采用免疫组化SP法测定大鼠中缝核TPH2的表达。结果 18 d CUMS后,实验组大鼠旷场实验评分、蔗糖水消耗实验结果及中缝核TPH2表达量低于对照组(P均<0.01)。实验组大鼠18 d CUMS前后水平运动得分差与TPH2表达量呈负相关(r=-0.71),垂直运动得分差与TPH2表达量呈负相关(r=-0.74),中央格停留时间差与TPH2表达量呈正相关(r=0.64),蔗糖水消耗量差与TPH2表达量呈负相关(r=-0.69)。结论妊娠期抑郁症模型大鼠中缝核TPH2表达量下降可能与妊娠期抑郁症的发生有关。
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