黄连细胞二步法悬浮培养生产黄连生物碱类成分的探索

为提高用植物细胞培养生产镒生代谢产物的单位产量，作者对黄连细胞采用二步法悬浮培养生产黄连生物碱进行了探索。结果显示：黄连细胞采用一步法悬浮培养６周，细胞干，鲜重产率分别为２０．９６ｇ／Ｌ和１７４．９２ｇ／Ｌ，增重约７００％，细胞中总生物碱含量为１４．７９ｍｇ／ｇ．ｃｅｌｌ ｄｗ，培养基中生物碱量为１２．９６ｍｇ／Ｌ，每升培养液共可收获生物碱３２３ｍｇ。采用先在生长培养基中培养３周，在合成碱量为１２     

内皮素与P-选择素在冠心病中的意义

目的：研究内皮素（ET－1）、P－选择素、肌钙蛋白I（CTn1)在急性心肌梗死（AMI）和不稳定性心绞痛（UA）中的意义，方法：用放射免疫法测ET－1，流式细胞术测定P－选择素，Access化学发光测CTn1，共检测23例AMI患、21例UA患及28例健康对照。结果：AMI组的ET－1、P－选择素、CTn1值均显高于对照组（P＜0．05－0．005）；UA组的ET－1、P－选择素显高于对照组（P＜0．05）；UA组的CTn1与对照组差异无显性（P＞0．05）；UA组的P－选择素、CTn1显低于AMI组（P＜0．05）。多元回归分析发现P－选择与CTn1相关，相关系数r=0.404，P＜0．01。结论：ET－1、P－选择素是检测血栓前状态的敏感指标。     

Clinical pathologic study on effect of Qianggan capsule in treating patients of chronic hepatitis B with liver cirrhosis

Objective  

To explore the clinical therapeutic effect of Qianggan Capsule (QGC) in treating chronic hepatitis B with liver fibrosis from the pathological aspect.     

Whole CanA Gene Amplification of Helicobacter pylori and Its Fingerprinting by Restriction Fragment Length Polymorphism

To set up a method of amplification for the whole CagA gene of Helicobacter pylori and its fingerprinting by restriction fragment length polymorphism(RFLP),nested PCR was employed in combination with TD-PCR to amplify the gene and EcoRI and Hind Ⅲ were used to generate the RFLP fingerprinting.Target DNA fragments from 13 of 20 samples were successfully amplified and the relevant RFLP fingerprintings were obtained.It is concluded that the method can be used to amplify the whole CagA gene and CagA gene has apparent diversity of RFLP profile.     

感染患者血清可溶性细胞间粘附分子含量的变化及其对脑梗死的影响

目的：探讨感染合并脑梗死患者血清可溶性细胞间粘附分子（sICAM-1)的变化及临床意义。方法：采用双抗体（ELISA）法测定50例感染合并脑梗死患者血清中sICAM-1的含量，并与30例脑梗死患者和30例健康人对照。结果：感染合并脑梗死患者急性期血清sICAM-1的水平明显高于对照组。结论：感染合并脑梗死时sICAM-1的表达明显升高，sICAM-1水平的增高加重了脑梗死的发生发展。     

The popularization and application of cold storage red blood cells or whole blood at −80 °C of the Rh(D) negative patients in surgical operation

Summary The efficiency of cold storage red blood cells (CSRBC) or whole blood at −80 °C used in 27 Rh(D) negative patients during surgical operation was reported. The Rh(D) negative patients received the transfusion of CSRBC or whole blood stored at −80 °C for 180 to 360 days. The changes in the indexes, such as blood TB, DB, K⁺, Na⁺, BUN, Cr, urine protein (URPO), UOB, Hb, HCT, serum total protein, relative to hemolytic reaction and blood volume before and after transfusion were observed. The results showed that after transfusion of CSRBC or whole blood 27 cases were negative for urine protein and UOB, and the levels of BUN and Cr were normal (P>0.05). Blood TB, DB, Hb, and HCT were increased, while pH, blood K⁺ and blood Na⁺ was normal with the difference being not significant before and after operation (P>0.05). Plasma protein was decreased, but there was no significant difference before and after operation (P>0.05). It was suggested that CSRBC or whole blood at −80 °C could be safely infused to the Rh(D) negative patients without side effects during the surgical operation. YU Zhongqing, male, born in 1957, Technician in Charge     

视交叉后损害的临床与图形视觉诱发电位分析

图形视觉诱发电位(P—VEP)是眼接受图形的刺激时,视路及大脑皮质枕区所产生的一系列电位变化。在视交叉后病变的诊断,病情估计及预后推测中有比较肯定的价值。 本文对17例视交叉后损害的病人进行分析。发现视交叉后病变以视皮质损害为主,表现为视物模糊,视力下降,视野改变。P—VEP检查的异常率与病变部位大小及病变性质有关。同时检查半视野刺激有助于提高阳性率。     

Studies on the effect of tetrandrine on microtubules. I. Biochemical observation and electron microscopy

Microtubules were purified by using two cycles of assembly and disassembly processes on fresh brain homogenates from 30 guinea pigs. The yield was about 60 mg. The effect of tetrandrine on tubulin was determined by spectrophotometric analysis and electron microscopy. In addition, we used the indirect immunofluorescent method including tubulin antibody to locate the presence of microtubules in 3T3 cells by fluorescence microscopy. The effects of colchicine and P204 were studied for comparison at the same time. The results showed that colchicine can effectively depolymerize microtubules, while tetrandrine showed aggregation, and in a different manner. The shape and structure of microtubules were definitely destroyed by colchicine, but were not affected by P204 which protected against the destructive effect of tetrandrine. This result indicated the safety of using a combination of P204 and tetrandrine in the treatment of silicosis.     

微波与X线联合辐射对人体血液系统的影响

本文调查了微波与X线同时接触工人49名(联合组)、单微波接触工人48名(微波组)以及两者均不接触的工人46名(对照组)。联合组和微波组工人的微波辐射剂量每日平均约300μw/cm~2,联合组工人接触的X线剂量,每年小于5rem。结果显示:联合组中性粒细胞ACP、AKP活性以及中性粒细胞核棘突出现率均较微波组和对照组明显增高(P<0.01),糖原含量则较其它两组明显下降(P<0.01)。调查表明,低强度微波与低剂量X线联合辐射比单独微波辐射对人体的潜在危害更大。因此,对雷达等发射设备周围的工作人员,除必要的微波防护外。同时需要对X线进行防护。