定坤丹的显微鉴定研究

对定坤丹(蜜丸)进行了显微鉴定研究,将29种组成药物全部检出,对各组成药物的显微鉴别特征作了简明描述,并附显微特征图。     

遥测心电监护仪ZB—313P发射与接收频率关系的研究与应用

本文通过对多台日本光电公司遥测心电监护仪ZB-313P发射盒发射和接收石英晶体振荡器频率的实际测试以及对测试结果数据的分析研究。了解和掌握了其内在的规律，推导出了该发射盒的标称频率，实际发射频率以及监护仪接收频率三者之间关系变化的计算公式，以此公式计算出来的频率数据。可作为采用国产石英晶体振荡器对日本光电该系列监护仪进行维修的依据。并为此类设备的维修应用提供了一定的指导作用。     

单向中频电加助透液防治瘢痕增生

为防治瘢痕增生，寻求有效治疗方法，我们采用单向中频电加助透液治疗瘢痕增生患者３３例，痊愈显效率为６４％，总有效率为８８％。结果表明，单向中频电加助透液能增强导入作用，是防治瘢痕增生的有效方法。     

方格星虫多糖分离纯化及性质鉴定

以方格星虫（Sipunculus nudus）体壁和血液为试验材料，经胰蛋白酶水解，Sevage法去除蛋白质，乙醇沉淀得到粗多糖，透析并冷冻干燥后分别得到方格星虫体壁多糖（SWP）和血液多糖（SBP）。经凝胶渗透色谱分析，SWP和SBP均为单一组分，相对分子质量分别为284528和198212。红外光谱分析表明，两种多耱结构相似，不含硫酸基团，均含有葡萄耱、半乳糖、木糖和阿拉伯糖。SBP含有乙酰氨基，而SWP不含乙酰氨基，它们是以α-糖苷键或β-糖苷键连接的呋喃多糖。     

乳母血清泌乳素水平与泌乳量关系的观察

用放射免疫法测定产后40天和60天乳母血清泌乳素基础水平和吸吮后泌乳素最大反应性增值,发现其与乳母泌乳量、婴儿吸吮频率、吸吮时间之间均不存在正相关关系,推测引起泌乳素分泌除吸吮外,还存在其他机理。     

High-frequency ventilation (HFV) in hyaline membrane disease —a preliminary report

Eight premature babies affected by hyaline membrane disease and needing mechanical respiratory support were ventilated by means of a VDR 1 (Bird Space Technology) respirator at 10 Hz during a mean time of 51 h. Before HFV 7 infants had been on conventional mechanical ventilation (CMV) and one on nasal CPAP. The values of mean airway pressure (MAP) and oxygenation index (PaO₂/FIO₂) on CMV and HFV were (mean and range): 1. CMV: MAP 15 (4–29) mm Hg, ox. index 15.47 (5.07–23.19) kPa; 2. HFV after 1 h: MAP 15 (10–19) mm Hg, ox. index 24.13 (9.07–46.12) kPa. Improved oxygenation allowed rapid reduction of FIO₂ in the following hours. Only 3 infants were weaned directly from VDR 1, 5 were switched back to CMV mainly because of technical failures of the respirator. The change from HFV to CMV was associated with a fall of PaO₂/FIO₂ from 35.99 (15.86–74.52) to 22.39 (7.33–31.46) kPa. The mean time of artificial ventilation (CMV+HFV) was 121 h (range 46–166). Except for 1 pneumothorax no medical complications were seen during HFV, and all patients survived. Despite impressive improvements in oxygenation it is cautioned against the use of the VDR 1 because of the high incidence of technical problems.     

三匹风总黄酮的提取

本研究探讨了中草药“三匹风”主要成份之一的黄酮类化合物的提取方法和化学鉴定法。经实验优选,确定采用70％乙醇提取法分离提取三匹风中的总黄酮成份。     

河北省中药混乱品种鉴别研究——6.蕲蛇及其伪品的鉴别

按照中国药典1985年版蕲蛇为蝰科动物五步蛇除去内脏的干燥体。近年在河北省的药村商品中,发现有游蛇科动物滑鼠蛇混入其中,充当蕲蛇。作者应用解剖、组织切片的方法,研究了蕲蛇与滑鼠蛇在形态组织上的鉴别特征。它们的主要区别在于:鳞片、体表花纹、牙齿、鼻骨的形态;椎骨的形态与组织特征。据此可以鉴别蕲蛇与滑鼠蛇的真伪。     

Comparison of the haemodynamic effects of intermittent positive pressure ventilation with high frequency jet ventilation

The cardiorespiratory effects of intermittent positive pressure ventilation and high frequency jet ventilation with and without positive end expiratory pressure were compared in patients following valvular heart surgery (mitral and/or aortic). Twenty patients received intermittent positive pressure ventilation and high frequency jet ventilation with 0, 0.5 and 1.0 kPa positive end expiratory pressure. High frequency jet ventilation was well tolerated. The addition of 1.0 kPa positive end expiratory pressure was associated with preservation of the arterial oxygen tension without any increase in shunt or significant adverse haemodynamic effect. The results are discussed and compared with a previous study of high frequency jet ventilation following aortocoronary bypass graft surgery.