母鼠牛磺酸耗竭与补充对仔代脑发育的影响 |
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引用本文: | 徐广飞 刘毅. 母鼠牛磺酸耗竭与补充对仔代脑发育的影响[J]. 营养学报, 1998, 20(1): 58-62 |
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作者姓名: | 徐广飞 刘毅 |
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作者单位: | 南通医学院营养与食品卫生学教研室(徐广飞),北京医科大学营养与食品卫生学教研室(刘毅) |
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摘 要: | 方法:Wistar大鼠随机分成三组:1.牛磺酸耗竭组(GES组),母鼠孕15日至哺乳第17日向饮水中加入GES(浓度为1%),并给予牛磺酸缺乏膳(饲料牛磺酸含量为0);2.对照组(Con组)饲料牛磺酸含量为0.06%,饮水中不含添加物;3.牛磺酸补充组(TS组),饲料牛磺酸含量为0.6%,饮水中亦不含添加物。对仔代出生及断乳时的脑重、脑牛磺酸与游离氨基酸含量、脑微量元素Zn、Cu、Fe含量及学习记忆能力进行测定。牛磺酸测定采用离子交换层析法;氨基酸测定采用HPLC法;微量元素Zn、Cu、Fe测定采用原子吸收火焰法;乳鼠学习记忆能力测定采用Y迷宫进行。结果:GES组仔鼠出生及断乳时的脑重、脑牛磺酸与微量元素Zn含量均低于对照组;在Y迷宫中的学习记忆能力低于母鼠牛磺酸补充组。母鼠牛磺酸补充对仔鼠出生时的脑重、脑牛磺酸含量及与微量元素Zn含量均无影响;但至断乳时,仔鼠大脑牛磺酸含量、微量元素Zn、Fe含量高于正常对照组。
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关 键 词: | 牛磺酸 微量元素 胍乙啶乙磺酸 学习记忆 |
TX THE EFFECT OF DAM TAURINE DEPLETION AND TAURINE SUPPLEMENTATION ON THE DEVELOPMENT OF THE OFFSPRING BRAIN |
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Abstract: | In order to study the effect of taurine level in pregnant rats on the development of offsprings brain,a domestic prior study using guanidinoethyl sulfonate(GES) as an inhibitor of taurine in the pregnant rats was conducted.Pregnant Wistar rats were randomly divided into three groups:(1)GES groups,rats were fed with a taurine free diet,and 1% GES was added to drinking water during the period of the 15th day of pregnancy to the 17th day of lactation.(2)Control group,rats were fed with normal fodder containing 0.06% taurine,no GES was added to the drinking water.(3)Taurine supplemented group,fodder contained 06% taurine,and no GES was used.Brain weight and taurine,free amino acids and trace elements of brain were measured in the offspring at postnatal day 2 and day 21(weaning).The learning and memory ability was tested by Y maze.The results showed that brain weight,brain taurine and zinc content of the pups in GES group were lower than those of control at postnatal day 2 and day 21;and learning and memory ability was lower than those of the pups in taurine supplemented group. |
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Keywords: | taurine trace elements guanidinoethyl sulfonatelearning and memory |
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