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y-型电迷宫
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  y-type maze test
     After neonatal rat were delivery,the body weight,brain weight,the water content of brain tissue were measured at the first day of birth and followed on 3th and 42th day,and the spatial learning of neonatal rat were measured by Y-type maze test.
     取后代仔鼠分别于生后第1、第3、第42天测量体重、大脑重量、脑组织含水量与单疗程及对照组比较,并运用Y-型电迷宫测试42 d仔鼠空间学习能力。
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  “y-型电迷宫”译为未确定词的双语例句
     The toxicity of CTX was measured in acute toxicity test. The analgesic effect of CTX in mice was measured by hot plate method and acetic aicd writhing test. The ameliorating effect of CTX on learning and memory impairment induced by scopolamine in mice was studied by Y-Maze, Shuttle-box, Step-down and Water Maze methods respectively.
     通过热板法及醋酸扭体法观察中华眼镜蛇心脏毒素(CTX)对成年昆明种小鼠疼痛的影响,通过Y-型电迷宫及穿梭箱法研究CTX对东莨菪碱诱发成年昆明种小鼠学习记忆障碍的影响,利用跳台法研究CTX对东莨菪碱诱发成年BABL/C小鼠学习记忆障碍的影响,利用Morris水迷宫法研究CTX对对东莨菪碱诱发成年C57BL/6J小鼠学习记忆障碍的影响。
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     Methods Ischemia was induced by occluding middle cerebral artery with infraluminal filament in rats for 0.5 hour, then the circulation was restored after drawing the infraluminal filament a little. Different dosage of ginsenoside Rg2 was given for five days, contrasting with nimodipine. Learning ability was measured by model Y maze in sixth day.
     方法 采用线栓法制成大鼠大脑中动脉栓塞模型,栓塞0.5h后进行再灌注,术后连续ip 5d给予不同剂量的人参皂苷Rg_2治疗,并与药物尼莫地平进行对照,1w后采用Y-型电迷宫测定学习记忆能力,TTC染色计算梗死面积,酶组织化学染色显示乙酰胆碱酯酶神经元,比色法测定乙酰胆碱酯酶活力,高效液相色谱法测定额叶皮层NE、DA、5-HT含量。
短句来源
     Y-maze test was designed to study the effects of Shaoxing yellow rice wine on the learning and memory ability of rats. The experimental results revealed that drinking yellow rice could improve the learning and memory ability of rats and such improvement was correlated with drinking dosage.
     用Y-型电迷宫研究了绍兴黄酒对大鼠学习记忆能力的影响,实验结果表明,黄酒能提高大鼠学习记忆能力,且与剂量有关。
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  相似匹配句对
     A behavioral examination was made by a Y-shaped electricity maze.
     行为学检测采用Y迷宫法;
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     (3)D shape.
     D
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     (2)C shape;
     C ;
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     Maze
     迷宫
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     A NEW TYPE OF INTELLECTUALIZED Y MAZE
     一种智能化的Y-迷宫
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In this article mice were irradiated with 36.11 GHz millimeter microwave at power density 7.2mW/cm~2 for 2 hours daily from the 6th to 15th day of gestation. We evaluated the following listed item with postnatal psychophysiological markers of the litter. The findings showed that: under the low power density millimeter microwave radiation, the litters appeared to have no alteration of physiological markers of pinna detachment, eye opening, testes descent, vaginal opening as well as early reflex makers of surface...

In this article mice were irradiated with 36.11 GHz millimeter microwave at power density 7.2mW/cm~2 for 2 hours daily from the 6th to 15th day of gestation. We evaluated the following listed item with postnatal psychophysiological markers of the litter. The findings showed that: under the low power density millimeter microwave radiation, the litters appeared to have no alteration of physiological markers of pinna detachment, eye opening, testes descent, vaginal opening as well as early reflex makers of surface righting, air righting, auditory startle. In these test, we also found no obvious effect on swimming endurance of matured offspring. The body weight of offspring decresed temporarily but it showed no difference between radiation and control group one week later. Millimeter microwave radiation can cause decreased learning capacity and memory of the matured offspring. They need more training and appeared to have more erroneous frequency than the control group irt order to get the stipulated criteria in conditional reflex test of Y-type electric maze.These results indicate that exposure to millimeter microwave radiation at low power density on the postimplantation embryos may result in subtle long-term neurophysiologic alteration.

本文用频率36.11GHz,功率密度为7.2mW/cm~2的毫米波,在小鼠怀孕6—15天时进行2小时/天的照射,用生后精神生理学指标进行分析。结果发现,未见导致胎仔生后耳廓张开、睁眼、睾丸下降、阴唇张开等生理指标的改变,也未使表面翻正、姿态纠正、听觉惊愕等早期反射指标发生变化,成熟仔鼠的游泳耐力亦未受明显影响。但可导致出生三天内的脍仔体重降低,一周后照射组胎仔体重与对照组无明显差别。毫米波辐射可导致成熟后仔鼠的学习及记忆能力降低,表现在Y型电迷宫条件反射实验中,需要较对照组鼠更多训练次数和错误次数才能达到规定标准。实验证明,低功率密度毫米波照射植入后期胚胎可引起仔鼠精细的精神生理学方面的改变。

The Sprague-Dawley rats withpostnatal 3 d were collected.The hypetpheny-lalaninemia was induced by intraperitoneal in-jection with phenylalanine.Fluorospec-trophotometry was applied to quantive determination of norepinephrine(NE),dopamine(DA)and serotonin(5-HT)in the cerebralcortex and its synaptosome of the rats. Beha-vior in the rats was observed by Y-maze learn-ing.The results showed that compare withthe control,the contents of NE,DA and 5-HT were decreased over 38.6%~67.4% inthe cortex of the hyperphenylalaninemic...

The Sprague-Dawley rats withpostnatal 3 d were collected.The hypetpheny-lalaninemia was induced by intraperitoneal in-jection with phenylalanine.Fluorospec-trophotometry was applied to quantive determination of norepinephrine(NE),dopamine(DA)and serotonin(5-HT)in the cerebralcortex and its synaptosome of the rats. Beha-vior in the rats was observed by Y-maze learn-ing.The results showed that compare withthe control,the contents of NE,DA and 5-HT were decreased over 38.6%~67.4% inthe cortex of the hyperphenylalaninemic ratsand decreased over 51.9%~70.2%in thesynaptosome of the cortex.Y-maze learningability in the rats was decreased apparently.The results suggest that the mental retarda-tion of PKU is in close correlative with de-crease of some monoamine transmitter con-tents in the cortex and its synaptosome.

以3d龄Sprague-Dawley大鼠腹腔注射苯丙氨酸(Phe)诱导高苯丙氨酸血症,荧光法测定大脑皮层及其突触体中去甲肾上腺素(NE)、多巴胺(DA)和5-羟色胺(5-HT)含量;Y型电迷宫法测其学习记忆能力.结果显示:高苯丙氨酸血症大鼠大脑皮层NE、DA及5-HT含量降低38.6%~67.4%,突触体中NE、DA和5-HT含量降低51.9%~70.2%,学习记忆能力明显低于对照组.结果提示,苯酮尿症智力障碍可能与大脑皮层及其突触体中某些单胺类递质含量降低相关.

Objective This study is to determine the threshold of fetus injury induced by millimeter wave irradiation with a frequency of 53GHz,and to clarify the mechanism of lowering learning capacity and memory of the adult offspring. Methods Two month old BALB/c mice were separately irradiated by millimeter wave with a frequency of 53 GHz at power densities of 1,3,5,8 mW/cm 2 for 2 h daily from the 6th to 15th day of gestation.The test of learning capacity and memory of adult offspring was undertaken on Y type...

Objective This study is to determine the threshold of fetus injury induced by millimeter wave irradiation with a frequency of 53GHz,and to clarify the mechanism of lowering learning capacity and memory of the adult offspring. Methods Two month old BALB/c mice were separately irradiated by millimeter wave with a frequency of 53 GHz at power densities of 1,3,5,8 mW/cm 2 for 2 h daily from the 6th to 15th day of gestation.The test of learning capacity and memory of adult offspring was undertaken on Y type electric maze.The content of cholinergic M receptor (M R) and its affinity to ligand,the levels of monoamine transmitter and AVP in the brain of the fetus at full term and adult offspring were measured by using RBA,HPLC ECD and RIA respectively. Results Millimeter wave irradiation at power densities of 3,5,8 mW/cm 2 lowered learning capacity and memory of adult offspring.It significantly increased the content of M R in hyppocampus of adult offspring and reduced the content of DA in brain of adult offspring and fetus at full term.Irradiation at a power density of ≥5 mW/cm 2 significantly reduced the content of AVP in hypothalamus of adult offspring.There was a significant correlationship among the aforesaid parameters and power densities. Conclusion It is suggested that the threshold of fetus injury induced by millimeter wave irradiation to pregnant mice with a frequency of 53GHz is 1  ̄ 3 mW/cm 2.The lowering of learning capacity and memory of the adult offspring may be related to decrease of the contents of AVP,DA in the brain,as well as reduced function of cholinergic nerves in the hippocampus.

目的确定53GHz毫米波对胚胎产生损伤效应的阈值及导致成年子鼠学习、记忆功能降低的机制。方法用频率53GHz、功率密度1、3、5、8mW/cm2的毫米波,在小鼠怀孕6~15天时进行2h/d辐射,用Y型电迷宫对成年子鼠进行学习、记忆功能测试,分别用放射配基结合分析法、高效液相色谱-电化学检测法、放射免疫法对足孕胚胎和成年子鼠脑胆碱能-M受体(M-R)、单胺递质和精氨酸加压素(AVP)进行测定。结果≥3mW/cm2的毫米波导致成年子鼠学习、记忆功能明显降低,成年子鼠海马区M-R的最大受体结合数(Bmax)明显升高,成年子鼠及足孕胚胎脑中多巴胺(DA)含量明显降低;≥5mW/cm2辐射导致成年子鼠下丘脑中AVP含量明显降低,以上指标与功率密度呈明显相关。结论53GHz毫米波辐射导致胚胎损伤的阈值在1~3mW/cm2,其导致成年子鼠学习、记忆功能降低,与使子鼠脑中AVP、DA含量下降及海马区胆碱能神经活性降低相关

 
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