维普中文期刊产品整合服务
2419篇 您的检索式:作者名="chen JH"
    题名 作者 年代 出处 被引量
1室内氡与肺癌关系研究显示文摘目的 直接调查居室水平氡浓度对居民肺癌危险度的影响 ,并与由矿工受照结果推导的结论相比较。方法 在甘肃省平凉、庆阳两地区进行病例 对照研究。该地区居民稳定而室内氡水平较高。肺癌病例必须是在 1994年 1月至 1998年 4月期间诊断 ,年龄在 30~ 75岁之间 ,居住在平凉和庆阳两地区的居民。根据人口调查资料随机选取对照 ,对照要在年龄、性别、地区方面与病例相匹配。在过去 5~ 30年期间 ,凡住过两年以上的房间都布放了氡探测器。氡测量涵盖了 77%的照射周期。结果 病例居室的平均氡浓度为 2 30 4Bq m3 (n =76 8) ,对照为 2 2 2 2Bq m3 (n =16 5 9)。居民肺癌危险度随室内氡水平的增高有所上升 (P <0 0 0 1)。根据线性模型 ,对全部研究个体而言 ,在 10 0Bq m3 情况下 ,附加比值比 (EOR)为 0 19(95 %CI:0 0 5 ,0 47)。对测量涵盖了 10 0 %照射周期的个体 ,为 0 31(95 %CI:0 10 ,0 81)。在对照射的不确定度进行调整后 ,估算值可增加70 %。结论 研究结果证明室内水平氡照射会增加肺癌危险度 。王作元 Lubin JH 王陇德 张守志 Boice JD Jr 崔宏星 张淑蓉 Conrath SC 夏英 尚兵 Brenner A 雷苏文 Metayer KC 曹吉生 Chen KW 雷淑杰 Kleinerman RA 2002中华放射医学与防护杂志2002,22,3:28
2Up-regulation of PIK3CA promotes metastasis in gastric carcinoma显示文摘AIM:To explore expressions of PIK3CA in the progression of gastric cancer from primary to metastasis and its effects on activation of phosphatidylinositol 3-kinase(PI3K)/Akt pathway.METHODS:mRNA and protein levels of PIK3CA were assessed,respectively,by real-time quantitative polymerase chain reaction and immunohistochemistry in specimens of normal gastric mucosa,primary foci and lymph node and distant metastasis of gastric cancer.Akt and phosphorylated Akt protein were also examined by Western blotting in these tissues,in order to analyze the effect of PIK3CA expression level changes on the activation of PI3K/Akt signaling pathway.RESULTS:PIK3CA mRNA in lymph node metastasis were approximately 5 and 2 folds higher,respectively,than that in the corresponding normal gastric mucosa and primary gastric cancer tissues(P<0.05),while no statistical significance was found compared with distant metastasis.Immunohistochemically,PIK3CA protein expression was discovered in 7(35%)specimens of 20 primary foci vs 10(67%)of 15 of lymph node metastasis or 11(61%)of 18 of distant metastasis(35%vs 67%,P=0.015;35%vs 61%,P=0.044).With the increased level of PIK3CA expression,the total Akt protein expression remained almost unchanged,but p-Akt protein was upregulated markedly.CONCLUSION:Increased expression of PIK3CA is expected to be a promising indicator of metastasis in gastric cancer.Up-regulation of PIK3CA may promote the metastasis of gastric cancer through aberrant activation of PI3K/Akt signaling.Liu JF Zhou XK Chen JH Yi G Chen HG Ba MC Lin SQ Qi YC. 2010World Journal of Gastroenterology2010,16,39:20
3门静脉高压并非肝细胞癌肝切除术的绝对禁忌证显示文摘在肝细胞癌(hepatocellular carcinoma,HCC)的各种临床分期系统中,Bruix J团队领衔的巴塞罗那肝癌临床分期标准(Barcelona Clinic Liver Cancer,BCLC)最受推崇,美国和欧洲肝病协会指南的制定亦基于该分期系统。BCLC认为门静脉高压显著增加HCC肝切除术后患者发生肝功能衰竭的风险,Zhong JH Li H Xiao N Ye XP Ke Y Wang YY Ma L Chen J You XM Zhang ZY Lu SD Li LQ 钟鉴宏 齐鲁楠 2014中国癌症防治杂志2014,6,4:18
4急性缺血性脑卒中后低脉压与不良预后相关显示文摘众所周知,脉压与心脏功能、动脉僵硬度、体液状态和血管事件有关。该研究旨在探讨基于中国台湾地区脑卒中登记资料的急性缺血性脑卒中(acute ischemic stroke,AIS)患者入院时脉压的预后作用。刘莉 叶鹏 Tang SC Yin JH Liu CH Sun MH Lee JT Sun Y Hsu CS Sun MC Lin CH Chen CH Lien LM Muo CH Jeng JS Hsu CY 2017中华高血压杂志2017,25,7:5
5文献快报(9):大学生大学前和大学时期欺凌经历与健康相关生命质量的关系显示文摘同伴欺凌在青少年中已经成为一种常见的行为,欺凌可能对健康产生长期不良的影响。美国公共健康协会报告显示,在美国每年有320万名以上学生报道遭受过欺凌,每天有16万名学生因害怕遭受欺凌而逃学。中国台湾学者Chen等探讨了台湾大学生欺凌行为的流行情况以及欺凌行为与健康相关生命质量的关系,并于2013年按照比例整群抽样1 452名在校大学生,使用自填式问卷调查大学生不同类型欺凌行为的经历,包括不同欺凌种类(躯体欺凌、言语欺凌、关系欺凌、网络欺凌)和扮演角色(欺凌者、被欺凌者)。CHEN YY HUANG JH 苏普玉 2015中国学校卫生2015,36,6:4
6Nitrite-derived nitric oxide by xanthine oxidoreductase protects the liver against ischemia- reperfusion injury显示文摘It was demonstrated that xanthine oxidoreductase (XOR), during ischemia, catalyzes the formation of nitric oxide (NO) from nitrite (NO2-) and this NO2--derived NO protects the isolated perfused rat heart against the damaging effects of ischemia-reperfusion (I/R) when conventional nitric oxide synthase (NOS) -dependent NO production is impaired. Liver is one of the organs with the highest XOR concentration. This study was designed to determine whether NO2--derived NO by XOR protects liver against I/R injury in vivo. For its minute amounts and active reactivity, NO can not be detected directly in real time in vivo by this time. We have to prove the above hypothesis indirectly. METHODS:Wistar rats were pretreated with saline, NOS inhibitor L-NAME (10 mg/kg intravenously), XOR inhibitor allopurinol (1.5 mg/kg orally), L-NAME +allopurinol and NO scavenger carboxy-PTIO (0.6 mg/kg intravenously) respectively (12 animals per group). And then, they were subjected to total liver ischemia for 40 minutes followed by reperfusion. Blood samples and liver tissues were obtained for analysis after 3 hours of reperfusion. Survival was also investigated. RESULTS:Allopurinol-treated animals exhibited further increased serum alanine aminotransferase (ALT) levels and liver myeloperoxidase (MPO) activities, but further decreased liver adenosine triphosphate (ATP) stores after I/R compared to saline-treated counterparts (830.5±108.3 U/L, 56.5±11.0 U/mg protein and 1.93±0.47 μmol/g vs. 505.8± 184.2 U/L, 41.5±10.2 U/mg protein and 3.05±0.55 μmol/g respectively, P<0.01, P<0.05 and P<0.01 respectively). The hepatocyte injury was further exacerbated and the overall survival rate was significantly decreased after I/R in animals given by allopurinol compared to those pretreated by saline (P<0.05). L-NAME and allopurinol co-treated animals exhibited more severe liver injury (P<0.05 and P<0.01) and a further decreased overall survival rate (P<0.05) compared to L-NAME or allopurinol alone-treated counterparts, but they were not different from carboxy-PTIO treated animals (P>0.05). CONCLUSION:NO2--derived NO by XOR in the hypoxic and acidic environment induced by hepatic I/R protects the liver against I/R injury in vivo.Department of General Surgery ( Lu P, Wang CY and Chen DD), and Department of Radiology (Liu F), Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China Cold Spring Harbor Laboratory, New York 11724, USA ( Yao Z) General Surgery Laboratory, Union Hospital, Tongji Medical College , Huazhong University of Science and Technology, Wuhan 430022 , China (Tian Y, Zhang JH and Wu YH) 2005Hepatobiliary & Pancreatic Diseases International2005,4,3:4
7Quality control measures for lowering the seroconversion rate of hemodialysis patients with hepatitis B or C virus显示文摘BACKGROUND: Hemodialysis (HD) patients are at high risk of infection by hepatitis B virus (HBV) or hepatitis C virus (HCV). The present study was designed to determine the impact of quality control measures on the prevention of transmission of blood-borne viruses. METHODS: A total of 6182 adult maintenance HD patients from all HD units in Zhejiang Province were recruited on January 1, 2007. The baseline demographic and clinical characteristics were recorded and all patients were followed up until death or survival at 4 years later. The Quality Control Standards of Hemodialysis were gradually implemented in HD units. The HBV or HCV seroconversion rates of the recruited patients were calculated and compared every year during the observation period. RESULTS: The prevalence of HBV was 8.3% at the beginning of the study, and 6.6% for HCV. With the implementation of the HD quality control measures, the HBV seroconversion rate tended to decrease year by year (χ 2 =6.620, P=0.085), and the HCV seroconversion rate decreased significantly (χ 2 =10.41, P=0.015). Compared with the data in 2007, the HBV seroconversion rate (χ 2 =4.204, P=0.040, relative risk ratio 0.393, 95% CI 0.156-0.991) and the HCV seroconversion rate (χ 2 =7.373, P=0.007, relative risk ratio 0.386, 95% CI 0.189-0.787) decreased significantly in 2010. CONCLUSION: Quality control measures for HD decreased the seroconversion rates of HBV or HCV in HD patients, showing that updated quality control measures reduce the risk for transmission of blood-borne viruses in the HD population.Jing Yuan,Yi Yang, Fei Han, Ping Zhang, Xiao-Ying Du, Hua Jiang and Jiang-Hua Chen The Kidney Disease Center, First Affiliated Hospital, Zhejiang University School of Medicine (Yuan J, Yang Y, Han F, Zhang P, Du XY, Jiang H and Chen JH) and Hemodialysis Quality Control Center of Zhejiang Province (Yuan J, Zhang P, Du XY and Chen JH), Hangzhou 310003, China 2012Hepatobiliary & Pancreatic Diseases International2012,11,3:2
8Alterations of gastrointestinal motility in obesity显示文摘Xing JH Chen JD 2004Obesity Research2004,12,11:1
9Double filtration plasmapheresis in the treatment of myasthenic crisis-analysis of prognostic factors and efficacy 显示文摘 Chen WH Chiu HC 2001Acta Neurol Scand2001,104,2:1
10Correlation of quantitative assay of hepatitis B surface antigen and HBV DNA levels in asymptomatic hepatitis B virus carriers显示文摘Chen CH lee CM Wang JH 2004Eur J Gastroenterol Hepatol2004,16,:1
11Serun uric acid level as an independent risk factor for all-cause, cardiovascular, and ischemic stroke mortality: a Chinese cohort study 显示文摘Chen JH Chuang SY Chen H J 2009Arthritis Rheum2009,61,2:1
12Effect of dental heat pressing on the microstructure of SiO:-K20-B203-MgO-F glass-ceramic 显示文摘YH Zhao JH Chen M Fang 2008Int J Appl Ceram Technol2008,5,6:1
13Protection from Fasmediated apoptosis by a soluble form of the Fas molecule显示文摘Chen JH Zhou T Liu CD 1994Science1994,263,:1
14Characterization of intrahepatic cholangiocarcinoma of the intraductal growth-type and its precursor lesions显示文摘Yeh TS Tseng JH Chen TC 2005Hepatology2005,42,3:1
15Plasmapheresis for hyperlipidemic pancreatitis显示文摘Yeh JH Chen JH Chiu HC 2003J Clin Apheresis2003,18,4:1
16Emergence of an S gene mutant during thymosin alphal therapy in a patient with chronic hepatitis B 显示文摘TANG JH YEH CT CHEN TC 1998J Infect Dis1998,178,:1
17Calcification by valve interstitial cells is regulated by the stiffness of the extracellular matrix显示文摘Yip CY Chen JH Zhao R 0,,06:1
18Impact of MRI-eval- uates neoadjuvant chemotherapy response on change of surgical recommendation in breast cancer显示文摘CHEN JH FEIG BA HSIANG DJB 2009Ann Surg2009,249,3:1
19Increased matrix metalloproteinase -2 and tissue inhibitor of metalloproteinase - 1 secretion but unaf- fected invasiveness of endometrial stromal cells in adenomyosis 显示文摘Yang JH Wu MY Chen M J 2009Fertil Steril2009,91,5:1
20Status of nuclear medicine in Beijing: insights from the Beijing quality control centre survey 2005-2006 显示文摘Si HW Geng JH Chen SZ 2008Nucl M ed Commun2008,29,3:1
返回顶部 每页显示:
共121页 首页 上一页 第1页 下一页 末页 /121 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费