联合服用色氨酸对氟西汀治疗抑郁模型大鼠抑郁、焦虑样行为的影响

被引:3
作者
吕燕华
曹亦宾
王海英
庄严
郭红梅
吴秀玲
机构
[1] 唐山市工人医院神经内二科
关键词
色氨酸; 氟西汀; 抑郁; 焦虑; 交互作用;
D O I
暂无
中图分类号
R749.4 [情感性精神病]; R-332 [医用实验动物学];
学科分类号
100204 [神经病学]; 100402 [劳动卫生与环境卫生学];
摘要
目的探讨联合服用色氨酸对氟西汀治疗抑郁模型大鼠抑郁、焦虑样行为的影响。方法将60只雄性Wistar大鼠按随机区组法分为对照组、色氨酸组、氟西汀组和色氨酸+氟西汀组, 各15只。对照组大鼠给予9 g/L氯化钠注射液灌胃(5 mL/kg), 色氨酸组给予50 mg/kg色氨酸, 氟西汀组给予10 mg/kg氟西汀, 色氨酸+氟西汀组同时给予大鼠50 mg/kg色氨酸和10 mg/kg氟西汀灌胃。4组大鼠均给予21 d长期慢性、中等和不可预知应激刺激建立抑郁模型。采用改良强迫游泳实验检测4组大鼠静止不动时间、游泳时间及攀爬时间。采用高架十字迷宫实验检测4组大鼠进入开放臂、闭合臂时间, 进入中央区时间及进入开放臂次数占总次数百分比。高效液相色谱法测定4组大鼠脑脊液中色氨酸水平。结果 (1)4组大鼠静止不动时间、游泳时间、攀爬时间差异均有统计学意义(P<0.05)。氟西汀和色氨酸均对大鼠改良强迫游泳实验行为学指标有显著影响。(2)4组大鼠进入开放臂时间、进入闭合臂和中央区的时间差异均有统计学意义(P<0.05)。氟西汀对大鼠高架十字迷宫实验行为学指标有显著影响。色氨酸对大鼠进入各臂与中央区的次数、时间无显著影响。氟西汀和色氨酸联用对大鼠高架十字迷宫实验行为学指标的影响不存在显著交互作用。(3)4组大鼠脑脊液中色氨酸水平测定结果差异有统计学意义(F=6.874, P=0.002)。色氨酸+氟西汀组大鼠脑脊液中色氨酸水平显著高于对照组及色氨酸组, 差异均有统计学意义(P<0.05)。结论 (1)色氨酸可加重大鼠抑郁样行为, 对焦虑行为无明显作用;(2)氟西汀可逆转大鼠抑郁样行为, 但致焦虑;(3)色氨酸和氟西汀联合使用对治疗大鼠焦虑样行为、抑郁样行为无明显效果。
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