生长抑素对肝硬化食道胃底静脉曲张破裂出血作用的临床研究

目的 观察生长抑素制剂（施他宁、善得定）对于肝硬化食道胃底静脉曲张破裂出血的治疗效果,并与垂体后叶素进行比较。方法 ６４例患者随机分为垂体后叶素组（ｎ＝２１）、施他宁组（ｎ＝２０）、盖得定组（ｎ＝２３）进行治疗。结果 垂体后叶素组、施他宁组和善意得定组患者自接诊后至完全止血时的出血量,及接诊后至止血后４８小时生命 体征基本平稳时的输血量无显著性差异（Ｐ〉０．０５）。各治疗组２４小时内的止血率均为８     

Polymorphism of ACE gene and its relationship with serum ACE activity in the Hans in Chengdu region]

This study was aimed at the angiotensin converting enzyme (ACE) gene insertion/deletion(I/D) polymorphism distribution in Chinese and its relationship with serum ACE activity(SACE). SACE activity and ACE gene polymorphism in 90 healthy persons in Chengdu region were investigated using a spectrophotometric assay and the PCR technique, respectively. The results showed that, in the Hans, DD genotype of ACE gene was 18%, DI genotype 44%, and II genotype 38%. Allele frequencies were 0.40 for the D allele and 0.60 for the I allele. There were significant relationships between ACE I/D polymorphism and SACE activity. The results suggest that ACE genotype distribution be different between races, that II genotype and I allele be more frequent in Chinese, and that SACE activity be under the influence of a genetic polymorphism of ACE in Chinese.     

An adenosine triphosphate bioluminescence assay for detecting the number of living cells]

The method for detecting the number of living cells was studied. Using an adenosine triphosphate (ATP) bioluminescence assay, the present authors reported a perfect linear relationship between lg ATP concentrations and lg luminescence counts (r = 0.9963) as well as a relationship between lg number of cells and lg ATP luminescence counts (r = 0.9922). The detectable cells ranged from 10(2) to 10(6) cells/ml, the coefficients of variation 1-3%. This method is simple, accurate and sensitive and has a high reproducibility.     

Treatment of neurofibromatosis with Chinese herbal drugs.

Neurofibromatosis is a dominantly inheriteddefect of the ectoderm,characterized by cafe au laitspots since the childhood and multiple tumorsderived from elements of peripheral and cranialnerves.Hernia-like tumors of various sizes can oftenbe felt under the skin and serve as a valuablecharacteristic in making diagnosis.However,theycan also affect brain,vegetative nerve system or othertissues and lead to bony abnormalities,mentaldisturbances and sometimes,endocrine abnormalities,     

肝癌患者恶性疾病相关性DNA结合蛋白2的检测

The aim of this study was to assess the value of malignant disease-associated DNA-binding protein 2(MAD2) in the diagnosis of liver cancer. The concentration of plasma MAD2 was determined in 27 patients with primary liver cancer, 14 patients with metastatic liver cancer and 12 healthy subjects by ELISA assay. The primary tumors of all the patients with metastatic liver cancer were located in the gastrointestinal tract, which had been radically resected and had no signs of local recurrence. The concentrations of plasma MAD2 in the patients with primary liver cancer, with metastatic liver cancer, and the healthy subjects were 30.56 +/- 11.38 micrograms/ml, 9.27 +/- 5.58 micrograms/ml and 8.43 +/- 5.62 micrograms/ml, respectively. The concentration of MAD2 in patients with primary liver cancer was significantly higher than that in the patients with metastatic liver cancer and healthy subjects (P < 0.001). There was no significant difference between the healthy subjects and the patients with metastatic liver cancer(P > 0.05). These results suggest that MAD2 may be an useful marker for the diagnosis of primary liver cancer.     

绒毛膜促性腺激素对人胃腺癌细胞胞浆cAMP水平的影响

为探讨绒毛膜促性腺激素（ｈＣＧ）作用于胃腺癌细胞后的信号传递机制,我们对ｈＣＧ对胃腺癌ＳＧＣ－７９０１细胞胞浆内ｃＡＭＰ含量的影响进行了观察。结果显示：当ｈＣＧ的浓度由１０＾－１１ｍｏｌ／Ｌ增加到１０＾－６ｍｏｌ／Ｌ时,胞内ｃＡＭＰ的水平从２．１ｐｍｏｌ／ｍｇ蛋白增至约１０ｐｍｏｌ／ｍｇ蛋白（Ｐ〈０．０１）,与对照组相比有显著性差别（Ｐ〈０．０１）。同时,此效应还具有时间依赖性,即随着ｈＣＧ作用时     

CD44S和CD44V6在胃淋巴瘤中的表达及意义

目的：探讨ＣＤ４４Ｓ和ＣＤ４４Ｖ６在胃淋巴瘤中的表达特征及其临床意义。方法：采用ＨＥ染色、ＣＤ３、ＣＤ２０、ＣＤ４４Ｓ和ＣＤ４４Ｖ６的经法观察４７全。 低度恶 胃淋巴瘤中的阳性率为工恶生为６２％,差异显著（Ｐ＝０．０２）,ＣＤ４４Ｖ６在低度胃淋巴瘤中的阳性率为６％,高度恶性为３８％,差异显著（Ｐ＝０．０１）。ＣＤ４４Ｓ在临床１期的阳笥率为３０％,２～４期为７５％,差异显著（Ｐ－０－．００２）。结论     

固定化葡萄糖氧化酶流动注射化学发光法测定血糖

Luminol-hemin system was used for chemiluminescent flow-injection analysis with immobilized glucoxidase(GOD) column to determine blood glucose. The method is fast, simple and sensitive. Blood samples were diluted to 1:1000 and pumped into the flow-injection analyzer for direct detection. The sampling frequency was 30 samples/h, with a detection limit of 7.2 x 10(-9) mol/L(1.30 micrograms/L). A column packed with 36 milligrams of CPG could be used nearly 200 times. The determination results of glucose in serum by this method were in good agreement with those obtained by the routine GOD spectrophotometric method (correlation coefficient r = 0.90, P > 0.05). Recoveries of this method were 94.0%-107.2%.     

苏林酸诱导结肠腺癌HT—29细胞凋亡的实验研究

为观察苏林酸对结肠腺癌ＨＴ－２９细胞有无促凋亡作用,采用流式细胞仪检测、ＤＮＡ电泳和透射电镜观察苏林酸对ＨＴ－２９细胞的促凋亡作用。结果：流式细胞式、ＤＮＡ电泳和透射电镜观察均显示苏林酸可诱导ＨＴ－２９细胞凋亡,且具有时间和剂量依赖性。用０．３ｍｍｏｌ／Ｌ、０．６ｍｍｏｌ／Ｌ和１．２ｍｍｏｌ／Ｌ苏林酸处理４８小时,凋亡细胞分别占５．８％、７．６％和１１．７％,处理７２小时则分别升为１２．５％、１５     

过氧化物诱导LO2细胞凋亡时Fas mRNA表达及Ca^2＋流变化的单 …

探讨过氧化物所致肝细胞凋亡时Ｆａｓ基因表达与Ｃａ＾２＋流变化的相互关系。方法应用全细胞膜片错单细胞逆转录聚合酶链反应技术进行Ｈ２Ｏ２诱导人类正常肝细胞ＬＯ２细胞ＦａｓｍＲＮＡ表达的单细胞分析,应用全细胞膜片错显微荧光单细胞胞浆游离钙浓度测量技术、流式细胞术、扫描电镜观察同期瞬时Ｃａ＾２＋流变化及早期凋亡（Ａｎｎｅｘｉｎ－Ｖ）细胞指数和细胞膜变化。结果Ｈ２Ｏ２作用２ｈ单个ＬＯ２细胞电泳图分析可见Ｆａ