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1Function of apoptosis and expression of the proteins Bcl-2,p53 and C-myc in the development of gastric cancer显示文摘INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer .An Gao Xu Shao Guang Li Ji Hong Liu Ai Hua Gan Research Laboratory of Digestive Disease,Huizhou Central People’s Hospital,Huizhou 516001,Guangdong Province,ChinaDr.An Gao Xu graduated from Guangdong Medical College in 1984.He is an associate physician-in-chief,specializing in the research and treatment of gastrointestinal and liver tumors.He has published 24 papers and 1 book. 2001World Journal of Gastroenterology2001,7,3:91
2河姆渡遗址第一期发掘报告显示文摘河姆渡遗址位于杭州湾南岸,四明山和慈溪南部山地之间的一条狭长的河谷平原上。肖甬铁路自西向东在平原的中部通过。遗址往西五十里是余姚县城,往东五十里是宁波市,所在地在余姚县罗江公社东方红大队河姆渡村东北。遗址西面、南面紧临姚江,过江是四明山麓;东面、北面是一片平原。根据有关地质钻探资料,在这片平原的耕土层以下有大片厚度不一的泥炭层。穿过平原是慈溪南部山地。遗址适在丘陵和平原的过渡地段,其地势由西南向东北略呈缓坡(图一;图版壹,1)。CPAM, Chekiang Province and Chekiang Provincial Museum 1978考古学报1978,,1:271
3江陵天星观1号楚墓显示文摘天星观1号墓位于江陵县观音垱公社五山大队境内,东临长湖,西距楚故都纪南城约30公里(图一)。清时曾在该墓封土堆上修建过'天星观'道观一座,因此而得名。五山大队境内自东向西弧形排列五个大土塚,1号墓位于'五山'东侧,是'五山'之中最大的一个,海拔40.4米(图版拾壹,1)。The Jingzhou District Museum, Hubei Province 1982考古学报1982,,1:168
4Source mechanism of strong aftershocks (M_s≥5.6) of the 2008/05/12 Wenchuan earthquake and the implication for seismotectonics显示文摘Dozens of >M5, hundreds of >M4, and much more >M3 aftershocks occurred after the 2008/05/12 Wenchuan earthquake, which were well recorded by permanent and portable seismic stations. After relocated with P arrival, the >M3 aftershocks show two trends of distribution, with most of the aftershocks located along the north-east strike consistent with Longmenshan fault system, yet there is a north-west trend around the epicenter. It seems that substantially more aftershocks occur in regions with crystalline bedrocks. Then we collected waveform data from National Digital Seismograph Network and regional seismograph network of China, and employed 'Cut and Paste' method to obtain focal mechanisms and depths of the big aftershocks (M≥5.6). While most of those aftershocks show thrust mechanism, there are some strike slip earthquakes in the northern-most end of the rupture. Focal mechanisms show that the events located on the southern part of central Beichuan-Yingxiu Fault (BY) are mainly thrust earthquakes, which is consistent with initial mechanism of the main shock rupture. In the north part the aftershocks along the BY are also dominated by thrust slip, which is quite different from the right slip rupture of the main shock. Around Qingchuan-Pingwu Fault, the focal mechanisms are dominated by right-slip rupture with large depths (~18 km). So we suspected that in the north part the main shock might rupture on two faults: Beichuan Fault and Qingchuan-Pingwu Fault. The complex pattern of aftershock mechanisms argues for presence of a complicated fault system in the Longmenshan area.ZHENG Yong1,2,MA HongSheng3,Lü Jian4,NI SiDao5,LI YingChun6 & WEI ShengJi2 1 Institute of Geodesy and Geophysics,Chinese Academy of Sciences,Wuhan 430077,China 2 Institute of Geophysics,Chinese Earthquake Administration,Beijing 100086,China 3 Institute of Earthquake Science,Chinese Earthquake Administration,Beijing 100086,China 4 Earthquake Administration of Jiangxi Province,Nanchang 330039,China 5 School of Earth and Space Science,University of Science and Technology of China,Hefei 230026,China 6 Earthquake Administration of Jiangsu Province,Nanjing 210014,China 2009Science China Earth Sciences2009,52,6:100
5Increasing the frequency of CIK cells adoptive immunotherapy may decrease risk of death in gastric cancer patients显示文摘AIM: To analyze the correlation between cytokineinduced killer (CIK) cells adoptive immunotherapy and cancer-related death in gastric cancer patients. METHODS: One hundred and fifty-six gastric cancer patients after operation at the Third Affiliated Hospital of Soochow University were enrolled in this study. Their clinical data including demographic characteristics, operation time, tumor size, pathological type and staging, tumor metastasis, outcome of chemotherapy or CIK cells adoptive immunotherapy, survival time or time of death were collected with a standard structured questionnaire. Kaplan-Meier method was used to estimate the median survival time, and the 2- and 5- year survival rates. Hazard risk (HR) and 95% confidence interval (95% CI) of CIK cells adoptive immunotherapy for gastric cancer were calculated using the two-stage time-dependent covariates Cox model. RESULTS: The survival time of gastric cancer patients was longer after CIK cells adoptive immunotherapy than after chemotherapy (χ 2 = 10.907, P = 0.001). The median survival time of gastric cancer patients was also longer after CIK cells adoptive immunotherapy than after chemotherapy (49 mo vs 27 mo, P < 0.05). The 2- and 5-year survival rates of gastric cancer patients were significantly higher after CIK cells adoptive immunotherapy than after chemotherapy (73.5% vs 52.6%, 40.4% vs 23.9%, P < 0.05). A significant difference was observed in the survival curve for patients who received CIK cells adoptive immunotherapy (0, 1-10, 11-25, and over 25 frequencies) (χ 2 = 14.534, P = 0.002). The frequencies of CIK cells adoptive immunotherapy were significantly related with the decreasing risk of death in gastric cancer patients after adjustment for sex and age of the patients, tumor stage and relapse (HR = 0.54, 95% CI: 0.36-0.80) when the first stage Cox model was used to define the subjects who remained alive beyond 36 mo as survivors. However, no correlation was observed between the frequencies of death in CIK cells adoptive immunotherapy and the risk of gastric cancer patients (HR = 1.09, 95% CI: 0.63-0.89) when the second stage Cox model was used to define the subjects who survived for more than 36 mo as survivors. CONCLUSION: The survival time of the gastric cancer patients treated with chemotherapy combined with CIK cells adoptive immunotherapy is significantly longer than that of the patients treated with chemotherapy alone and increasing the frequency of CIK cells adoptive immunotherapy seems to benefit patients more.Jing-Ting Jiang, Chang-Ping Wu, Lu-Jun Chen, Xiao Zheng, Department of Tumor Biological Treatment, Third Affiliated Hospital of Soochow University, Changzhou 213003, Jiangsu Province, China Yi-Bei Zhu, Jing Sun, Xue-Guang Zhang, Key Laboratory of Stem Cell of Jiangsu Province, Institute of Biotechnology, Key Laboratory of Clinical Immunology of Jiangsu Province, Soochow University, Suzhou 215123, Jiangsu Province, China Yue-Ping Shen, Wen-Xiang Wei, Department of Medicine, Soochow University, Suzhou 215123, Jiangsu Province, China Bin-Feng Lu, Department of Immunology, University of Pitts- burgh School of Medicine, Pittsburgh, PA 15261, United States 2010World Journal of Gastroenterology2010,16,48:82
6An analysis of 10218 ulcerative colitis cases in China显示文摘AIM: To analyze the characteristics of ulcerative colitis(UC)in Chine.METHODS: From 1981 to 2000, a total of 10218 patients of UCreported in Chinese medical literature and including ourcases diagnosed were analyzed according to the diagnosticcriteria of Lennard-Jones.RESULTS: The number of cases increased by 3.08 times overthe past 10 years (2506 patients were diagnosed from 1981 to1990 while 7512 patients were diagnosed from 1991 to 2000).Lesion renge were described in 7966 patients, 5592 (70.20%)were proctosigmoiditis or proctitis, 1792(22.50%) left-sidedcolitis, 582(7.30%) pancolitis. Among the 8122 patients,2826 (34.8%) had first episole, 4272 (52.6%) had chronicrelapse, 869 (10.7%) were of chronic persist type, 154(1.9%) were of acuts fulminant tyle. The course of theillress were described in 5867 patients, 4427(75.5%) wereless than 5 years, 910 (15.5%) between 5 and 10 years, 530(9.1%) more then 10 years. Six hundred and sixteenpatients patients (6.1% ) had extraintestinal manifestations.The mean age at the diagnosis was 40.7 years( range 6-8 years, and the peak ages 30-49 years). The male to femaleratio was1.09. Among 270 patients diagnosed in ourhospital, 36 had histories of smoking, there was no negativeassociation between the severity of UC and smoking ( P >0.05), 21 smokers were followed up for one year, 15 of themhad given up smoking when the disease were diagnosed,and one year later, 7 patients relapsed, another 6 patientscontinued smoking, and one year later, 2 patients relapsed.Among 270 UC patients diagnosed in our hospital, 4 patients(1.48%) from 2 families had familial history of UC.Treatment was mentioned in 6859 patients, only SASP and/or corticosteroid only in 1276 patients(18.6%), only Chineseherbs in 1377 patients (20.1%), combined Chinese andwestern medicine in 4056 patients (59.1%), surgery wasperformed in 87 patients (1.3%), other treatments in 63patients(0.9%).CONCLUSIONS: In China, number of UC patients increasedsignificantly in the past 10 years. Lesions are commonlylocated to left side colon. The course is short with rereextraintestinal manifestations. The age of onset is relativelyhigh. Males and females are nearly equally affected. Nonegative relation was found between smoking and severityof the disease. Familial relatives are rarely involved.Traditional Chinese medicine (TCM) is widely used in thetreatment of UC.Xue-Liang Jiang Department of Gastroenterology,Chinese PLA General Hospital of Jinan Command,Jinan 250031,China Hui-Fei Cui Department of Biochemical Pharmaceutics,Shandong University,Jinan 250012,Shandong Province,China 2002World Journal of Gastroenterology2002,8,1:217
7Clinical observation of salvianolic acid B in treatment of liver fibrosis in chronic hepatitis B显示文摘AIM: To evaluate the clinical efficacy of salvianolic acidB (SA-B) on liver fibrosis in chronic hepatitis B.METHODS: Sixty patients with definite diagnosis of liverfibrosis with hepatitis B were included in the trial.Interferon-γ (IFN-γ) was used as control drug. Thepatients took orally SA-B tablets or received muscularinjection of IFN-γ in the double blind randomized test,The complete course lasted 6 months. The histologicalchanges of liver biopsy specimen before and after thetreatment were the main evidence in evaluation, incombination with the results of contents of serum HA,LN, Ⅳ-C, P-Ⅲ-P, liver ultrasound imaging, andsymptoms and signs.RESULTS: Reverse rate of fibrotic stage was 36.67 % inSA-B group and 30.0 % in IFN-γgroup. Inflammatoryalleviating rate was 40.0 % in SA-B group and 36.67 %in IFN-γ group. The average content of HA and Ⅳ-Cwas significantly lower than that before treatment. Theabnormal rate also decreased remarkably. Overallanalysis of 4 serological fibrotic markers showedsignificant improvement in SA-B group as comparedwith the IFN-γgroup. Score of liver ultrasound imagingwas lower in SA-B group than in IFN-γgroup (HA 36.7 %vs80 %,Ⅳ-C 3.3 % vs23.2 %). Before the treatment,ALT AST activity and total bilirubin content of patientswho had regression of fibrosis after oral administrationof SA-B, were significantly lower than those of patientswho had aggravation of fibrosis after oraladministration of SA-B. IFN-γ showed certain sideeffects (fever and transient decrease of leukocytes,occurrence rates were 50 % and 3.23 %), but SA-Bshowed no side effects.CONCLUSION: SA-B could effectively reverse liverfibrosis in chronic hepatitis B. SA-B was better than IFN-γ in reduction of serum HA content, overall decrease of4 serum fibrotic markers, and decrease of ultrasoundimaging score. Liver fibrosis in chronic hepatitis B withslight liver injury was more suitable to SA-B in anti-fibrotic treatment. SA-B showed no obvious side effects.Ping Liu Yi-Yang Hu Cheng Liu Hui-Ming Xue Zhi-Qiang Xu Lie-Ming Xu Cheng-Hai Liu Hong-Tu Gu Shanghai University of Traditional Chinese Medicine,Shanghai 200032,China Da-Yuan Zhu Shanghai Institute of Metaria Medica,Chinese Academy of Sciences,Shanghai 200031,China Zhi-Qing Zhang the 4~(th) Hualyin City Hospital,Hualan City,223000,JiangSu Province,China 2002World Journal of Gastroenterology2002,8,4:85
8Intestinal endotoxemia as a pathogenetic mechanism in liver failure显示文摘Liver injury induced by various pathogenic factors (such as hepatitis virus, ethanol, drugs and hepatotoxicants, etc.)through their respective special pathogenesis is referred to as 'primary liver injury' (PLI). Liver injury resultedfrom endotoxin (lipopolysaccharide, LPS) and the activation of Kupffer cells by LPS while intestinal endotoxemia (IETM) occurred during the occurrence and development of hepatitis is named the 'secondary liver injury' (SLI).The latter which has lost their own specificities of primary pathogenic factors is ascribed to IETM. The 'secondary liver injury' is of important action and impact on development and prognosis of hepatitis. More severe IETM commonly results in excessive inflammatory responses, with serious hepatic necrosis,further severe hepatitis and even induces acute liver failure.The milder IETM successively precipitates a cascade,including repeated and persistent hepatocytic impairment accompanied by infiltration of inflammatory cells, hepatic fibrosis, cirrhosis and hepatocarcinoma. Generally, the milder IETM ends with chronic hepatic failure. If PLI caused by various pathogenic factors through their independent specific mechanismis regarded as 'the first hit' on liver, then SLI mediated by different chemical mediators from KCs activated by IETM in the course of hepatitis is 'the second hit' on liver. Thus, fusing and overlapping of the primary and scondary liver injuries determine and influeuce the complexity of the illness and outcome of the patient with hepatitis. For this reason, the viewpoint of 'SLI' induced by the 'second hit' on liver inflicted by IFTM suggests that medical professionals should attach great importance to both 'PLI'and 'SLI' caused by IETM. That is, try to adjust the function of KSs and eliminate endotoxemia of the patient.De-Wu Han,Institute of Hepatology,Shanxi Medical University,Taiyuan 030001,Shanxi Province,China 2002World Journal of Gastroenterology2002,8,6:170
9Effects of glutamine on intestinal permeability and bacterial translocation in TPN-rats with endotoxemia显示文摘AIM: To evaluate the protective effect and mechanism ofglutamine on the intestinal barrier function in totalparenteral nutrition (TPN) rats with trauma or endotoxemia. METHODS: To perform prospective, randomized andcontrolled animal experimentation of rats with surgicaltrauma, TPN and endotoxemia, thirty-four male, adultSprague Dawley rats were divided into four groups: control group (n=8), TPN group (n=9), trauma and endotoxemia group (LPS, n=8) and trauma plus endotoxemia supplemented with glutamine in TPN solution group (Gin.group, n=9). All groups except the control group were given TPN solutions in 7-day experimental period. For Gin group, 1 000 mg/kg/d of glutamine was added to TPN solution during day 1-6. On the 7th day all the animals were gavaged with lactulose (66 mg) and mannitol (50 mg)in 2 mi of normal saline. Then 24 h urine with preservative was collected and kept at -20 ℃. On day 8, under intraperitoneal anesthesia using 100 mg/kg ketamin, the intestine, liver, mesenteric lymph nodes and blood were taken for examination. RESULTS: The body weight of LPS group decreased most among the four groups. The structure of small intestinal mucosa in TPN group, LPS group and Gln group showed impairments of different degrees, and the damage of small intestinal mucosa in Gln group was remarkably alleviated.The concentrations of interleukins in small intestine mucosa were lower (for IL-4 and IL-6) or the lowest (IL-10) in Gln group. The IgA level in the blood plasma and the mucosa of Gln group was the highest among all of the groups. The urine lactulose/mannitol test showed that the intestinal permeability in LPS group was lower than that in TPN group (P<0.001), but there was no difference between LPS group and Gln group. The rate of bacterial translocation in Gln group was lower than that in LPS group (P<0.02). CONCLUSION: Prophylactic treatment with glutamine could minimize the increments of intestinal permeability and bacterial translocation caused by trauma and endotoxemia in rats treated with TPN.Lian-An Ding Jie-Show Li Clinical College of Nanjing University Medical School,305 East Zhongshan Road,Nanjing 210002 Jiangsu Province,China 2003World Journal of Gastroenterology2003,9,6:89
10基本地震属性在沉积环境解释中的应用研究显示文摘地震属性在碳氢检测、储层参数预测和层序地层解释中已有广泛的应用,但将地震属性用于沉积环境解释却不多见。本文的目的旨在推进这方面的研究工作。在种类繁多的地震属性中,瞬时振幅、瞬时频率、瞬时相位和相干数据体、波形聚类可以定义为基本地震属性,其他地震属性均与这5种基本地震属性有直接或间接关系。这5种基本属性均能反映某种沉积现象:瞬时振幅可以反映地层的波阻抗(速度及密度)和孔隙流体的差异;瞬时相位可以刻画岩性变化的边界和一些异常体的边界;相干数据体可以反映地质体的空间变化;波形聚类可以反映地质体的空间相似程度。为了提高采用基本地震属性解释沉积环境的可信度,用宽方位角观测是十分有益的。采用相对保持振幅与高分辨率处理是必要的条件,在解释中如何合理选择参考标准层进行井信息标定也是成功的重要保证。选择参考标准层的条件是:①该层在研究区具有相同的沉积环境;②该层和目的层间必须在一个沉积旋回内,或处在一个地震波周期内。研究表明,采用上述方法提取的地震属性可以获得地震分辨率小于1/4波长的沉积环境信息,就是说,此法可以用于沉积微相的解释和预测,为寻找有利储集相带提供重要信息。Ling Yun, BGP, CNPC, Zhuozhou City, Hebei Province, 072751,China 2003石油地球物理勘探2003,38,6:164
11Relationship between the expression of iNOS,VEGF,tumor angiogenesis and gastric cancer显示文摘AIM:To in vestigate the relationship between the expression of inducible nitric oxide synthase(iNOS),vascular endothelial growth factor(VEGF),the microvascular density(MVD)and the pathological features and clinical staging of gastric cancer.METHODS:Immunohistochemical staining was used for detecting the expression of iNOS and VEGFin46resected specimens of gastric carcinoma;the monoclonal antibody against CD34 was used for displaying vascular endothelial cells,and MVD was detected by counting of CD34-positive vascular endothelial cells.RESULTS:Of 46resected specimens of gastric carcinoma,the rates of expressions of iNOS and VEGF were 58.70%and76.09%,respectively,and MVDaveraged55.59±19.39,Judged by the standard TNM criteria,the rate of expression of iNOS in stageⅣ(84.46%)was higher than those in stageⅠ,Ⅱ,Ⅲ(Fish exact probabilities test,P=0.019,0.023and 0.033,respectively);the rates of expression of VEGFin stage Ⅲ,Ⅳ(76.0%,92.31%,respectively)were higher than those in stageⅠ,Ⅱ(Fis exact probabilities test,P=0.031,0.017,0.022and0.019).MVDs in stageⅢ,Ⅳ(64.72±14.96,67.09±18.29,respectively)were higher than those in stageⅠ,Ⅱ(t\2.378,4.015,2.503and2.450,P<0.05,P<0.001,P<0.001,P<0.05,respectively),In37gastric carcinoma specimens with lymph node metastasis,MVD(68.69±18.07)and the rates of expression of iNOS and VEGF(70.27%,83.78%,respectively)were higher than those in the specimens with absence of metastasis(t=2.205,X^2=6.3587,X^2=6.2584,P<0.01,P<0.05,P<0.05,respectively),MVD and the expressions of iNOS and EGF were not correlated to the location,size or grade of tumor,nor with the depth of invasion of tumor;MVDs in the positive iNOS and VEGF specimens(59.88±18.02,58.39±17.73,repectively)were higher than those in the negative iNOS and VEGF specimens(X^2=6.3587and 6.1574,P<0.05,P<0.05,respectively);thus the expressions of iNOS and VEGF was correlated to MVD,but the expression of iNOS was not correlated to that of VEGF,In addition.of the 46 surviving patients,the 5-year survival rate of patients with positive iNOS or VEGF tumors was significantly less than that of patients with negative iNOS-or VEGF tumors(X^2=4.3842and 5.4073,P<0.05,P<0.05.respectively).CONCLUSION:The expressions of iNOS and VEGF are colosely related to tumor angiogenesis,and are involved in the advancement and the lymph node metastasis;thusMVD and the expressions of iNOS and EGF may serve indexes for evaluating staging of gastric carcinoma and forecasting its risk of metastasis,which will help establish a comprehensive therapeutical measure of post-operative patients and provide a new approach to tumor therapy.Zheng-Jun Song Ping Gong Yu-E Wu Department of Gastroenterology,First Affiliated Hospital of Xi’an Jiaotong University,Xi’an 710061,ShaanXi Province,China 2002World Journal of Gastroenterology2002,8,4:87
12Effect of phosphorylation of MAPK and Stat3 and expression of c-fos and c-jun proteins on hepatocarcinogenesis and their clinical significance显示文摘AIM To study the effect of phosphorylation ofMAPK and Stat3 and the expression of c-fos andc-jun proteins on hepatocellular carcinogenesisand their clinical significance.METHODS SP immunohistochemistry was usedto detect the expression of p42/44MAPK, p-Stat3,c-fos and c-jun proteins in 55 hepatocellularcarcinomas (HCC) and their surrounding livertissues.RESULTS The positive rates and expressionlevels of p42/44MAPK, p-Stat3, c-fos and c-junproteins in HCCs were significantly higher thanthose in pericarcinomatous liver tissues (PCLT).A positive correlation was observed between theexpression of p42/44MAPK and c-fos proteins, andbetween p-Stat3 and c-jun, but there was nosignificant correlation between p42/44MAPK and p-Stat3 in HCCs and their surrounding livertissues.CONCLUSION The abnormalities of Ras/Rat/MAPK and JAKs/ Stat3 cascade reaction maycontribute to malignant transformation ofhepatocytes. Hepatocytes which are positive forp42/ 44MAPK, c-fos or c-jun proteins may bepotential malignant pre-cancerous cells.Activation of MAPK and Stat3 proteins may be anearly event in hepatocellular carcinogenesis.De Yun Feng Hui Zheng Yi Tan Rui Xue Cheng Department of Pathology, Hunan Medical University, Changsha 410078, Hunan Province, China New England Biolab, MA, USA 2001World Journal of Gastroenterology2001,7,1:75
13Inhibiting effect of antisense oligonucleotides phosphorthioate on gene expression of TIMP-1 in rat liver fibrosis显示文摘AIM To observe the inhibition of antisenseoligonucleotides (asON) phosphorthioate to thetissue inhibitors metalloproteinase-1 (TIMP-1)gene and protein expression in the liver tissue ofimmunologically induced hepatic fibrosis rats.The possibility of reversing hepatic fibrosisthrough gene therapy was observed.METHODS Human serum albumin (HSA) wasused to attack rats, as hepatic fibrosis model, inwhich asONs were used to block the gene andprotein expressing TIMP-1. According to theanalysis of modulator, structure protein, codingseries of TIMP-1 genome, we designed fourdifferent asONs. These asONs were injected intothe hepatic fibrosis models through coccygealvein. The results was observed by RT-PCR formeasuring TIMP-1 mRNA expression,immunohistochemistry and in situ hybridizationfor collagen Ⅰ, Ⅲ, special staining of collagenfiber, and electron microscopic examination.RESULTS Hepatic fibrosis could last within 363days in our modified model. The expressinglevel of TIMP-1 was high during hepatic fibrosisprocess. It has been proved by theimmunohistochemical and the electronmicroscopic examination that the asONphosphorthioate of TIMP-1 could exactly expressin vivo. The effect of colchicine wasdemonstrated to inhibit the expressing level ofmRNA and the content of collagen Ⅰ, Ⅲ in theliver of experimental hepatic fibrosis rats.However, the electron microscopy research andthe pathologic grading of hepatic fibrosisshowed that there was no significant differencebetween the treatment group and the modelgroup (P>0.05).CONCLUSION The experimental rat model ofhepatic fibrosis is one of the preferable modelsto estimate the curative effect of anti-hepaticfibrosis drugs. The asON phosphorthioate ofTIMP-1 could block the gene and proteinexpression of TIMP-1 in the liver of experimentalhepatic fibrosis rats at the mRNA level. It ispossible to reverse hepatic fibrosis, and it isexpected to study a new drug of anti-hepaticfibrosis on the genetic level. Colchicine has verylimited therapeutic effect on hepatic fibrosis,furthermore, its toxicity and side effects areobvious.Qing He Nie Yong Qian Cheng Yu Mei Xie Yong Xing Zhou Yi Zhan Cao The Center of Infectious Disease Diagnosis and Treatment of PLA,Tangdu Hospital,Forth Military Medical University,Xi’an 710038,Shaanxi Province,ChinaDr,Qing He Nie graduated from Qinghai Medical College as a doctor in 1983,got master degree at Beijing 302 Army Hospital in 1993,got doctor degree at the Third Military Medical University in 1998,engaged in postdoctoral research at the Fourth Military Medical University from 1998 to 2000,now an associate professor,specialized in clinical and experimental research of infectious diseases,had more than 90 papers published,coauthor of ten books,first author of one book. 2001World Journal of Gastroenterology2001,7,3:73
14Association of H.pylori infection with gastric carcinoma:a Meta analysis显示文摘AIM: To follow the principles of evidence based medicine to reach the integrated results of these studies.METHODS: Twenty-one papers of case-control studies were selected, including 11 on gastric cancer, 7 on precancerous lesion of stomach and 3 on lymphoma of stomach: Meta analysis was used to sum up the odds ratios (OR) of these studies.RESULTS: H. Pylori vsgastric cancer (intestinal and diffuse type): the odds ratio from the fixed effect model is 3.0016(95% Cl 2.4197-3.7234, P < 0.001 ). H. Pylori vs precancerous lesion of stomach: a random effect model was used to calculate the summary odds ratio and its value is 2.5635 (95% Cl: 1.8477-3.5566, P < 0.01). H. Pylori vs lymphoma of stomach: though the quantity of literature is too small to make Meta analysis, the data of these 3 studies show that lymphoma of stomach is highly associated with H. Pylori infections.CONCLUSION: Since it had been revealed that H. Pylori infection pre-exists in gastric carcinoma and precancerous lesions, the results of Meta analysis present a strong evidence to support the conclusion that H. Pylori infection is a risk factor for gastric carcinoma.Fu-Bo Xue~1 Yong-Yong Xu~1 Yi Wan~1 Bo-Rong Pan~2 Jun Ren~2 Dai-Ming Fan~3 1 Department of Health Statistics,Department of2 Oncology3 Gastroenterology of XiJing Hospital,the Fourth Military Medical University,Xi’an 710032,Shaanxi Province,China 2001World Journal of Gastroenterology2001,7,6:66
15宁城县南山根的石椁墓显示文摘宁城县现属辽宁省昭鸟达盟,境内山岭起伏,北部有老哈河的支流坤都河经此流过。南山根村在宁城县西,八里罕镇的东北约四公里,因位于坤都河上游的南岸山下而得名。村后是高约500米的山坡,山坡下部已辟为耕地,这里有古代遗址一处。1958年春季,在遗址的东部曾发现一批铜器,大小共71件。据当地群众介绍,系出自沟侧的两个地点,估计都是墓葬。1961年中国科学院考古研究所内蒙古工作队曾在这里作过调查和发掘,判明这里主要为夏家店上层和下层的两种文化遗存,并在地面上散布有零星的战国陶片。CPAM,Jouda League,Liaoning Province and the Northeast Archaeological Team,IAAS 1973考古学报1973,,2:64
16Analysis of in vivo patterns of caspase 3 gene expression in primary hepatocellular carcinoma and its relationship to p21^(WAF1) expression and hepatic apoptosis显示文摘AIM To detect the expression of caspase 3gene in primary human hepatocellular carcinoma(HCC)and investigate its relationship to p21WAF1gene expression and HCC apoptosis.METHODS In situ hybridization was employedto determine caspase 3 and p21WAF1expression inHCC.In situ end-labeling was used to detecthepatocytic apoptosis in HCC.RESULTS Twenty-one of 39(53.8%)cases ofHCC were found to express caspase 3transcripts,while 45.2% of HCC failed toexpress caspase 3.Non-cancerous adjacent livertissues showed more positive caspase 3(87.5%,7/8)as compared with HCC(P<0.05).The expression of caspase 3 is correlated withHCC differentiation,72.2%(13/18)ofmoderately to highly differentiated HCC showedcaspase 3 transcripts positive,while only 38.1%of poorly differentiated HCC harbored caspase 3transcripts(P<0.05).No relationship wasfound between caspase 3 expression and tumorsize or grade or metastasis,although 52.5%(5/8)of HCC with metastasis were caspase 3positive and a little higher than that with nometastasis(51.6%,P>0.05).Expression of caspase 3 alone did not affect the apoptosisindex(AI)of HCC.The AI was 7.12%o in caspase3-positive tumors(n=21),while in caspase 3-negative cases(n=18)6.59%0(P>0.05).Expression of caspase 3 clearly segregated withp21WAF1positive tumors as compared withp21WAF1-negative cases(16 of 23,69.6% versus5 of 16,31.3%)with statistical significance(P=0.017).In the cases with positive caspase 3and negative p21WAF1,the Al was found slightlyhigher,but with no statistical significance,thanthat with expression of p21WAF1and caspase 3(7.21‰ vs 6.98‰,P>0.05).CONCLUSION Loss of caspase 3 expressionmay contribute to HCC carcinogenesis,althoughthe expression of caspase 3 does not correlatewell with cell apoptosis in HCC.p21WAF1may bemerely one of the inhibitors which can reducecaspase 3 mediated cell apoptosis in HCCs.Bao Hua Sun Jun Zhang Bao JǜWang Xi Ping Zhao You Kun Wang Zhi Qun Yu Dong Liang Yang Lian Jie Hao Department of Clinical Immunology,Tongji Hospital,Tongji Medical University,Wuhan 430030,Hubei Province,China 2000World Journal of Gastroenterology2000,6,3:65
17Vascular endothelial growth factor and microvascular density in esophageal and gastric carcinomas显示文摘AIM: To observe the relationship between the expression of vascular endothelial growth factor (VEGF), microvascular density (MVD) and the pathological characteristics of esophageal and gastric carcinomas.METHODS: S-P immunohistochemical staining was used to investigate the expression of VEGF in all the specimens.The antibody against factor VIII-related antigen was used to display vascular endothelial cells, and MVD was examined by counting the factor VIII-positive vascular endothelial cells.RESULTS: The positive rates of VEGF expression in esophageal carcinoma and gastric carcinoma were 81.36 %and 67.5 % respectively, and the MVD averaged 41.81±8.44and 34.36±9.67 respectively, which were higher than those in benign diseases. The expression of VEGF and MVD were closely correlated with the degree of differentiation, lymphatic metastasis, but not related to depth of cancer invasion. In early stage gastric carcinoma, the rate of expression of VEGF and MVD was lower than that in progressive gastric carcinomas. CONCLUSION: The expression of VEGF is correlated with tumor angiogenesis, and VEGF plays an important role in new blood vessels formation, the expression of VEGF and MVD play an important role in tumor growth and metastasis.MVD and the expression of VEGF may be two important indexes for patients′ prognosis.Jin-Rong Du Ying Jiang Yan-Mei Zhang Hong Fu, Department of Pathology, the Second Affiliated Hospital, Harbin Medical University, Harbin 150086, Heilongjiang Province, China 2003World Journal of Gastroenterology2003,9,7:75
18Prognostic significance of expression of cyclooxygenase-2 and vascular endothelial growth factor in human gastric carcinoma显示文摘AIM: To investigate the role of cyclooxygenase-2(COX-2)and vascular endothelial growth factor (VEGF) in the development of gastric carcinoma and correlation between expression of COX-2 and VEGF and clinicopathologic features in tissues from patients with gastric carcinoma.METHODS: 281 patients with gastric carcinoma who underwent surgical resection between 1990 and 1999 at the First Affiliated Hospital, Anhui Medical University, PRC, were followed up. Expression of COX-2 and VEGF was investigated retrospectively in 232 gastric carcinoma tissues and 60noncancerous specimens by using immunohistochemistry.RESULTS: The 5-year survival rates of early gastric carcinoma (EGC) and advanced gastric carcinoma (AGC) were 93.4 %and 59.0 %, respectively. Survival time was highly correlated with lymph node metastasis, vascular invasion, depth of invasion and treatment with chemotherapy. Compared with paired noncancerous tissues, expression of COX-2 and VEGF and microvessel density (MVD) value in carcinoma tissue were significantly higher. The MVD value was much higher in COX-2-positive group and VEGF-positive group than that in COX-2-negative group and VEGF-negative group.Expression of COX-2 and VEGF, as well as MVD value were highly correlated with lymph node metastasis and vascular invasion. The 5-year survival rate of patients with expression of COX-2 or VEGF was significantly lower than that of patients without COX-2 or VEGF expression. Multivariate analysis revealed that VEGF overexpression, lymph node metastasis,COX-2 overexpression, depth of invasion and vascular invasion were all independent prognostic factors of gastric carcinoma.CONCLUSION: Overexpression of COX-2 and VEGF in patients with gastric carcinoma can enhance the possibility of invasion and metastasis, implicating a poor prognosis.They may serve as the fairly good prognostic factors to indicate biologic behaviors of gastric carcinoma.Hai Shi Jian-Ming Xu Nai-Zhong Hu Hui-Jun Xie Department of Gastroenterology,the First Affiliated Hospital,Anhui Medical University,Hefei 23022,Anhui Province,China 2003World Journal of Gastroenterology2003,9,7:64
19Current treatment for liver metastases from colorectal cancer显示文摘The liver is the commonest site of distant metastasis ofcolorectal cancer and nearly half of the patients withcolorectal cancer ultimately develop liver involved duringthe course of their diseases. Surgery is the only therapythat offers the possibility of cure for patients with hepaticmetastatic diseases. Five-year survival rates after resectionof all detectable liver metastases can be up to 40 %.Unfortunately, only 25 % of patients with colorectal livermetastases are candidates for liver resection, while the othersare not amenable to surgical resection. Regional therapiessuch as radiofrequency ablation and cryotherapy may beoffered to patients with isolated unresectable metastasesbut no extrahepatic diseases. Hepatic artery catheterchemotherapy and chemoembolization and portal veinembolization are often used for the patients with extensiveliver metastases but without extrahepatic diseases, whichare not suitable for regional ablation. For the patients withmetastatic colorectal cancer beyond the liver, systemicchemotherapy is a more appropriate choice. Immunotherapyis also a good option when other therapies are used incombination to enhance the efficacy. Selective internalradiation therapy is a new radiation method which can beused in patients given other routine therapies Without effects.Lian-Xin Liu Wei-Hui Zhang Hong-Chi Jiang Department of Surgery, the First Clinical College, Harbin Medical University, Harbin 150001, Heilongjiang Province, China 2003World Journal of Gastroenterology2003,9,2:61
20密山县新开流遗址显示文摘一遗址概况兴凯湖是我国东北边疆最大的淡水湖,位于黑龙江省密山县与苏联滨海州交界处,北部在我国境内。兴凯湖以北有小兴凯湖,两湖之间被长达四十余公里的沙岗隔开,俗称'湖岗'。小兴凯湖水位较高,湖水通过湖岗上的缺口流入兴凯湖,靠湖岗西端的缺口叫新开流。湖区北部开阔的平原和滩地,水草丰美,而今多已垦为农田。湖岗上林木繁茂,湖区水面辽阔,水草茂盛,生长各种鱼类和水禽。这草木丰茂的沃野和水产丰富的水域,正是原始居民居住和渔猎的良好处所。一九七二年七月,黑龙江省博物馆考古部在新开流东1.5公里的湖岗上发现一处新石器时代遗址。湖岗高起的南北缘成为遗址的天然屏障,遗址西南三百余米处有一隆起的高阜,公路穿过湖岗,将遗址分为南北两部分。遗址东西长300、南北宽80米,面积约24000平方米。同年九月十一日至十月二十三日,在遗址西北部的墓地进行发掘,开探方十二个,东为T1、2,Archaeological Team of Heilongjiang Province 1979考古学报1979,,4:58
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