电刺激促进后肢缺血大鼠VEGFmRNA和蛋白的表达

目的：观察电刺激对后肢缺血大鼠VEGF的调节。方法：采用SD大鼠股浅动脉结扎法制备后肢缺血模型，应用RT-PCR和免疫组化方法检测电刺激对后肢缺血大鼠VEGFmRNA和蛋白表达的影响。结果：刺激频率为25Hz，强度为0.1V不引起肌肉收缩。缺血模型建立7d后连续电刺激7d，VEGFmRNA的表达刺激组比非刺激组增加3倍，VEGF蛋白增加两倍。结论：电刺激可促进后肢缺血大鼠VEGFmRNA和蛋白的表达，从而实现非分子的治疗性血管生成作用。     

挤出造粒、气流包衣法制备包衣微粒剂Ⅳ.红霉素肠溶胶囊的研究

介绍了挤出、滚圆、气流包衣法制备红霉素肠溶微粒胶囊。该胶囊剂耐酸性好，人工肠液中释药快，在8名健康志愿者体内的AUC为市售红霉素肠溶片的1．99倍，且个体差异小。     

吲哚美辛肠溶包衣微丸的制备及其释放度的研究

 目的:制备吲哚美辛肠溶包衣徽丸，考察其释放特性。方法:采用正交试验设计筛选徽九的处方、工艺参数，用滚动凝聚法制备素丸，用沸腾包衣技米制备微丸，通过溶出试验考察其释放特性。结果:以优选处方、工艺制备 的徽丸在规定的酸性介质中几乎不释放，而在碑酸盐缓冲液中则释放80%以上。结论:本品处方合理，制备工艺简单，能达到肠溶目的，可降低或消除吲哚美辛在临床上使用的毒副作用。     

胃十二指肠息肉及良性肿瘤75例治疗体会

本文报告７５例胃十二指肠息肉及良性肿瘤的治疗体会。主要症状为上腹不适与黑便。胃镜摘除５４例，手术治疗２１例。作者认为，详尽地询问病史、配套的检查手段、熟练的操作技术以及正确的诊断思路为提高诊断率的关键，并提出了胃镜摘除手术治疗的指征及合理的手术方案来提高治愈率。     

Medial prefrontal transection enhances social interaction. II: neurochemical studies

Medial prefrontal cortex (MPFC) transection enhances social interaction in an open arena test. Social interaction enhances dopaminergic activity in the nucleus accumbens (NAC). In the present set of experiments, microdialysis probes were implanted in the NAC, and glutamate, gamma-aminobutyric acid (GABA) and dopamine (DA) were measured during electrical stimulation of the MPFC, after coronal transection caudal to the MPFC and after a systemic injection of amphetamine in transected rats. Electrical stimulation of the MPFC caused a transient enhancement of glutamate release in the NAC, no change in GABA levels and a long lasting increase in DA levels. Medial prefrontal transection did not change basal glutamate or GABA levels in the NAC, but increased basal DA levels. Amphetamine administration decreased GABA levels in medial prefrontal transected rats, had no effect on glutamate and increased DA levels more than in controls. The experiments suggest that glutamatergic activity in the accumbens decreases dopamine release. Medial prefrontal transection reduces glutamatergic tone and enhances dopamine release, which probably decreases GABAergic activity in the NAC. Presumably, GABA inhibition in the NAC enhances social interaction.     

妊高征患者胎盘床蜕膜T淋巴细胞亚群的表达与临床意义

目的:观察妊娠高血压综合征患者胎盘床蜕膜T淋巴细胞亚群的表达情况,探讨妊高征的免疫发病机理。方法:收集正常妊娠病例30例,妊高征共60例,其中轻度28例,中度17例,重度15例,用免疫组化方法对妊高征和正常妊娠的胎盘床蜕膜段浸润的淋巴细胞进行CD3、CD4、CD8的标记。结果:CD3在妊高征胎盘床蜕膜段浸润的淋巴细胞的表达明显高于正常妊娠(P<0.05);CD8在妊高征胎盘床蜕膜浸润的淋巴细胞的表达明显低于正常妊娠(P<0.05)。结论:妊高征的发生与T淋巴细胞亚群的变化有着密切的关系,胎-母间免疫失衡是妊高征发病的生要因素。     

多功能医疗护理床的研制与应用

本文介绍了一种多功能医疗护理床。该床具与便盆合为一体。适合行动不便或卧床不起但有思维能力的病人使用。病人方便时按下按纽便自行解决。具有省力、卫生、方便的特点。     

针刺与连续多点脉冲刺激对感觉神经性耳聋患者语言频率听力损失的影响

目的:探讨感觉神经性耳聋的有效治疗手段.方法:将经纯音测试、耳科医师确诊的34例轻中度感觉神经性耳聋患者,按中医辨证分为肝肾不足型(24例)和肝火旺盛型(10例),主穴取耳门、听宫、听会(取其一),翳风、神庭、百会、后顶、头维、聪耳1～3、聪脑1、聪脑2.配穴:肝肾不足型加肓俞、气海、关元、太溪;肝火旺盛型加中脘、天枢、阳陵泉、太冲.使用顺序连续多点脉冲刺激,每周2次,连续20周(40次)后复查纯音测听.结果:34例患者(58只病耳)治愈13例,好转21例;治疗前后各语言频率听阈纯音测听值均有明显提高,其差异有显著性意义(P<0.05).结论:针刺与连续多点脉冲刺激对感觉神经性耳聋患者语言频率听力损失具有确切疗效.     

耳穴降压沟电脉冲刺激治疗高血压病疗效分析

目的:观察耳穴降压沟电脉冲刺激对高血压病的治疗作用.方法:将129例Ⅰ～Ⅲ期高血压病患者采用华佗自动降压仪取耳穴降压沟电脉冲刺激,每次20～30分钟,每天1次.3疗程(21次)后观察血压变化情况.结果:129例患者,显效44例,有效73例,无效12例,总有效率达90.70%.收缩压平均下降(18.64±1.48)mmHg,舒张压平均下降(8.01±0.68)mmHg,收缩压与舒张压治疗前后比较差异均有极显著性意义(P<0.001).结论:耳穴降压沟电脉冲刺激能有效降低高血压病人的收缩压和舒张压.     

Classes of Auditory Evoked Responses

Auditory evoked potentials arise from different neural structures, yield different types of information and suffer different limitations. In order of activation, these are

(1) Organ of Corti (0 msec latency): 'CM'; usefulness uncertain.

(2) Auditory nerve (1–4 msec): 'N₁'; practically limited to study of basal turn (high frequencies). Basis of electrocochleography; useful for certain abnormalities but not for threshold audiogram.

(3) Cochlear nucleus through inferior colliculus (3–20 msec): low voltage waves demonstrated but not clearly identified with structures.

(4) Medial geniculate and primary cortical projection area (25–50 msec): low voltage waves can yield a threshold audiogram and are stable in sleep. Inadequately exploited.

(5) Cortical projection areas; secondary response (50–280 msec): 'V potential': a slow, variable on- or off-response, but excellent for threshold audiograms in cooperative waking subjects. A DC shift during continued stimulation has also been demostrated but not exploited.

(6) Diffuse late cortical responses: a) sleep (180 msec or more): several forms including the K complex. The forms, voltage and threshold vary with the stage of sleep. Threshold audiometry is difficult and not very precise; b) awake (300 msec or more): P₃₀₀ and CNV are both related to 'expectancy' and can be combined with conditioning to test certain psychological functions.