维普中文期刊产品整合服务
31237篇 您的检索式:作者名="Hm"
    题名 作者 年代 出处 被引量
1Identification of serum proteins discriminating colorectal cancer patients and healthy controls using surface-enhanced laser desorption ionisation-time of flight mass spectrometry显示文摘瞄准:为颜色检测新浆液简历标记由浆液蛋白质与提高表面的激光解吸附作用 ionisation 介绍的表面的癌症(CRC )-- 飞行团分光术(SELDI-TOF MS ) 的时间。方法:二个独立浆液样品集合与 ProteinChip 技术独立被分析(集合 A:40 CRC+49 健康控制;集合 B:37 CRC+31 健康控制) ,有一个弱阳离子的使用的芯片交换一半和缓冲区 pH 5。差别的歧视的力量表示了蛋白质与一个分类树算法被估计。产生分类树的敏感和特性被盲目地从集合 B 并且反过来也如此从集合 A 把数据用于产生的树获得。CRC 浆液蛋白质侧面也与从胸的那些相比,卵巢,前列腺,和非小的房间肺癌症。结果:Mass-to-charge 比率(m/z ) 3.1x10 (3 ) , 3.3x10 (3 ) , 4.5x10 (3 ) , 6.6x10 (3 ) 和 28x10 (3 ) 在最好执行的分类树上被用作分类器。树敏感和特性在 65% 和 90% 之间。大多数这些歧视的 m/z 价值在调查的另外的瘤类型也是不同的。M/z 3.3x10 (3 ) ,在大多数树上的主要分类器,是 6.6x10 (3 ) 的一种二倍地控告的形式 -Da 蛋白质。后者作为 apolipoprotein C-I 被识别。M/z 3.1x10 (3 ) 作为 apolipoprotein A-I 作为白朊,和 m/z 28x10 (3 ) 的 N 终端碎片被识别。结论:分类树模式分析跟随的 SELDI-TOF MS 是为为 CRC 发现新浆液标记的一种合适的技术。Biomarkers 能与高敏感和特性在独立样品集合被识别并且 reproducibly 检测了。尽管为 CRC 不特定,这些简历标记在监视的疾病和治疗有一个潜在的角色。Judith YMN Engwegen Helgi H Helgason Annemieke Cats Nathan Harris Johannes MG Bonfrer Jan HM Schellens Jos H Beijnen 2006World Journal of Gastroenterology2006,12,10:45
2左氧氟沙星三联疗法治疗顽固性Hp感染优于铋剂四联疗法显示文摘Saad RJ Schoenfeld P Kim HM 2006中国处方药2006,5,5:40
3Late Mesozoic crust-mantle interaction in southeastern Fujian——Isotopic evidence from the Pingtan igneous complex显示文摘UNDERPLATING Of mantle-derived basaltic magma and interacting with the lower crust materials are believed to be an important mechanism for the growth and transformation of the crust.Dong, CW Zhou, XM Li, HM Ren, SL Zhou, XH 1997Chinese Science Bulletin1997,42,6:23
4Estimation of Undrained Bearing Capacity for Offshore Soft Foundations with Cyclic Load显示文摘The degradation strength of soils under cyclic loading is studied and a method for deter-mining the cyclic degradation strength with cyclic triaxial tests is given in the paper.Furthermore,a dum-my static method for estimating the undrained bearing capacity for offshore soft foundation under waveloads is developed.It can consider the effect of the difference of cyclic stress for different parts of the foun-dation on both the degradation strength of the foundation soil and the bearing capacity so that the esti-mated result can better reflect the real condition of foundation under cyclic loading.The method can be ap-plied to plane and space problem.Wang, JH Liu, YF Xing, Y Di, HM 1998China Ocean Engineering1998,13,2:18
5Curcumin protects PC12 cells against 1-methyl-4-phenylpyridinium ion-induced apoptosis by bcl-2-mitochondria-ROS-iNOS pathway.显示文摘Chert J Tang XQ Zhi JL Cui Y Yu HM Tang EH Sun SN Feng JQ Chen PX Chen J 2006中国生物学文摘2006,20,10:16
6Mouse models in liver cancer research:A review of current literature显示文摘Primary liver cancer remains one of the most lethal malignancies worldwide. Due to differences in prevalence of etiological factors the incidence of primary liver can-cer varies among the world, with a peak in East-Asia. As this disease is still lethal in most of the cases, research has to be done to improve our understanding of the disease, offering insights for possible treatment options. For this purpose, animal models are widely used, especially mouse models. In this review, we describe the different types of mouse models used in liver cancer research, with emphasis on genetically engineered mice used in this field. We focus on hepatocellular carcinoma (HCC), as this is by far the most common type of primary liver cancer, accounting for 70%-85% of cases.Martijn WH Leenders Maarten W Nijkamp Inne HM Borel Rinkes 2008World Journal of Gastroenterology2008,14,45:16
7Tumor size as a prognostic factor in patients with advanced gastric cancer in the lower third of the stomach显示文摘AIM: To explore the impact of tumor size on outcomes in patients with advanced gastric cancer in the lower third of the stomach. METHODS: We retrospectively analyzed the clinical records of 430 patients with advanced gastric cancer in the lower third of the stomach who underwent distal subtotal gastrectomy and D2 lymphadenectomy in our hospital from January 1998 to June 2004. Receiver-operating characteristic (ROC) curve analysis was used to determine the appropriate cutoff value for tumor size, which was measured as maximum tumor diameter. Based on this cutoff value, patients were divided into two groups: those with large-sized tumors (LSTs) and those with small-sized tumors (SSTs). The correlations between other clinicopathologic factors and tumor size were investigated, and the 5-year overall survival (OS) rate was compared between the two groups. Potential prognostic factors were evaluated by univariate KaplanMeier survival analysis and multivariate Cox's propor-tional hazard model analysis. The 5-year OS rates in the two groups were compared according to pT stage and pN stage. RESULTS: The 5-year OS rate in the 430 patients with advanced gastric cancer in the lower third of the stomach was 53.7%. The mean ± SD tumor size was 4.9 ± 1.9 cm, and the median tumor size was 5.0 cm. ROC analysis indicated that the sensitivity and specificity results for the appropriate tumor size cutoff value of 4.8 cm were 80.0% and 68.2%, respectively (AUC=0.795, 95%CI: 0.751-0.839, P=0.000). Using this cutoff value, 222 patients (51.6%) had LSTs (tumor size ≥ 4.8 cm) and 208 (48.4%) had SSTs (tumor size<4.8 cm). Tumor size was significantly correlated with histological type (P=0.039), Borrmann type (P=0.000), depth of tumor invasion (P=0.000), lymph node metastasis (P=0.000), tumor-nodes metastasis stage (P=0.000), mean number of metastatic lymph nodes (P=0.000) and metastatic lymph node ratio (P=0.000). Patients with LSTs had a significantly lower 5-year OS rate than those with SSTs (37.1% vs 63.3%, P=0.000). Univariate analysis showed that depth of tumor invasion (c 2=69.581, P=0.000), lymph node metastasis (c 2=138.815, P=0.000), tumor size (c 2=78.184, P=0.000) and metastatic lymph node ratio (c 2=139.034, P=0.000) were significantly associated with 5-year OS rate. Multivariate analysis revealed that depth of tumor invasion (P=0.000), lymph node metastasis (P=0.019) and tumor size (P=0.000) were independent prognostic factors. Gastric cancers were divided into 12 subgroups: pT2N0; pT2N1; pT2N2; pT2N3; pT3N0; pT3N1; pT3N2; pT3N3; pT4aN0; pT4aN1; pT4aN2; and pT4aN3. In patients with pT2-3N3 stage tumors and patients with pT4a stage tumors, 5-year OS rates were significantly lower for LSTs than for SSTs (P<0.05 each), but there were no significant differences in the 5-year OS rates in LST and SST patients with pT23N0-2 stage tumors (P > 0.05). CONCLUSION: Using a tumor size cutoff value of 4.8cm, tumor size is a prognostic factor in patients with pN3 stage or pT4a stage advanced gastric cancer located in the lower third of the stomach.Hong-Mei Wang, Chang-Ming Huang, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jian-Xian Lin, Jun Lu, Department of Gastric Surgery, Affiliated Union Hospital of Fujian Medical University, Fuzhou 350001, Fujian Province, China Author contributions: Wang HM and Huang CM conceived of the study, analyzed the data, and drafted the manuscript Zheng CH, Li P and Xie JW helped revise the manuscript critically for important intellectual content Wang JB, Lin JX and Lu J helped collect data and design the study and all authors read and approved the final manuscript. 2012World Journal of Gastroenterology2012,18,38:15
8高危患者目标血压与心血管病预后显示文摘指南推荐血压目标值应〈140/90 mmHg(1mmHg=0.133kPa)以减少心血管事件的发生。但与其他心血管病预后(如冠状动脉事件)相比,包括脑卒中及心力衰竭在内的心血管病预后与收缩压下降关系更密切。一些心血管事件(如冠状动脉事件)风险在收缩压低时亦增高,风险-收缩压关系呈J形曲线,而脑卒中与血压不是J形曲线关系。B?hm M Schumacher H Teo KK Lonn EM Mahfoud F Mann JF Mancia G Redon J Schmieder RE Sliwa K Weber MA Williams BYusuf S 曲浥晨 叶鹏 2017中华高血压杂志2017,25,6:14
9Asymmetrically hypointense veins on T2~*w imaging and susceptibility-weighted imaging in ischemic stroke显示文摘AIM:To review the literature on the assessment of venous vessels to estimate the penumbra on T2*w imaging and susceptibility-weighted imaging (SWI). METHODS:Literature that reported on the assessment of penumbra by T2*w imaging or SWI and used a validation method was included. PubMed and relevant stroke and magnetic resonance imaging (MRI) related conference abstracts were searched. Abstracts that had overlapping content with full text articles were excluded. The retrieved literature was scanned for further relevant references. Only clinical literature published in English was considered, patients with Moya-Moya syndrome were disregarded. Data is given as cumulative absolute and relative values, ranges are given where appropriate. RESULTS:Forty-three publications including 1145 patients could be identified. T2*w imaging was used in 16 publications (627 patients), SWI in 26 publications (453 patients). Only one publication used both (65 patients). The cumulative presence of hypointense vessel sign was 54% (range 32%-100%) for T2* (668 patients) and 81% (range 34%-100%) for SWI (334 patients). There was rare mentioning of interrater agreement (6 publications, 210 patients) and reliability (1 publication, 20 patients) but the numbers reported ranged from good to excellent. In most publications (n = 22) perfusion MRI was used as a validation method (617 patients). More patients were scanned in the subacute than in the acute phase (596 patients vs 320 patients). Clinical outcome was reported in 13 publications (521 patients) but was not consistent. CONCLUSION:The low presence of vessels signs on T2*w imaging makes SWI much more promising. More research is needed to obtain formal validation and quantification.Ulf Jensen-Kondering Ruwen Bhm 2013World Journal of Radiology2013,5,4:14
10活性炭C40/4吸附甲苯和丙酮吸附性能研究显示文摘为探讨活性炭吸附C40/4有机蒸汽的性能曲线规律,在不同温度288.15K,293.15K和298.15K下实验测试了活性炭C40/4吸附有机气体甲苯和丙酮的吸附性能,基于langmuir等温吸附理论,从吸附动态平衡的角度,理论分析了吸附性能曲线中参数与温度之间的关系,提出一个经验的langmuir等温吸附曲线模型,它能很好地描述不同温度下的有机蒸汽在活性炭上的吸附性能曲线.模型计算值与实验测试值之间的误差小于6%.为确定活性炭吸附有机蒸汽的吸附量提供了有效的计算模式,从而为有机蒸汽吸附过程的设计、预测和优化提供有益的支持.李立清 HANGS-Jürgen Rhm Wolf-Dieter.Suβebach 2003湖南大学学报(自然科学版)2003,30,5:14
11The effect of retinoic acid on Ito cell proliferation and content of DNA and RNA显示文摘Gao ZL Li DG Lu HM Gu XH 1999World Journal of Gastroenterology1999,5,5:13
12Gastroesophageal reflux: the features in elderlypatients显示文摘AIM To compare the features ofgastroesophageal reflux disease between elderlyand younger patients.METHODS Twenty-four hour pH-monitoring andendoscopy were P6rformed for the 66 elderlypatients with typical gastroesophageaI refluxsymptoms, and the results were compared with112 symptomatic younger patients.RESULTS The results of 24-h pH-monitoringand endoscopy showed that the elderly patientshad pathological reflux and reflux esophagitismore frequently than the younger patients.P6rcentage time with pH< 4 in elderly patientswith reflux esophagitis was 32.5% in 24 hours,as compared with 12.9% in the younger patientswith reflux esophagitis (P < 0 .05 ). The elderlypatients with reflux esophagitis have longerP6riOds of acid reflux in both upright and Supinepositions than the younger patients. Endoscopyshowed that 20 .8% of elderIy patients had grade Ⅲ / Ⅳ esophagitis, whereas only 3.4% ofyounger patients had grade Ⅲ/ Ⅳ esophagitis(P < 0.002 ). Percentages of grades Ⅰ /Ⅱesophagitis in the two groups were 12.5% and26. 5%, respectiveIy (P< 0. 002 ).CONCLUSION Elderly patients, as comparedwith younger patients, have more severegastroesophageal reflux and esophageal lesions.The incompetence of lower esophageal sphincter and the presence of hiataI hernia may beimportant factors leading to the difference in incidence and severity of reflux esophagitisbetween elderly and younger patients.Huang X Zhu HM Deng CZ Porro GB Sangaletti O Pace F 1999World Journal of Gastroenterology1999,5,5:12
13Cyclooxygenase-2 polymorphisms and the risk of esophageal adeno-or squamous cell carcinoma显示文摘AIM:To determine whether-1195 A→G and/or-765 G→C polymorphisms in Cyclooxygenase-2(COX-2 ) may have a risk modifying effect on the development of esophageal carcinoma in a Dutch Caucasian population.METHODS:Two study groups were recruited, 252 patients with esophageal carcinoma and 240 healthy controls, matched for race, age, gender and recruiting area.DNA was isolated from whole blood and used for genotyping.PCR products were digested with restriction enzymes and products were analyzed by agarose gel electrophoresis.Odds ratios(OR) and 95% confldence intervals(CI) were estimated.RESULTS:The distribution of the-1195 A→G polymorphism was signif icantly different in esophageal cancer patients compared to controls.The-1195 GG genotype resulted in a higher risk of developing esophageal adenocarcinoma(OR = 3.85, 95% CI:1.45-10.3) compared with the-1195 AA genotype as a reference.The-765 G→C genotype distribution was not different between the two groups.The GG/ GG haplotype was present more often in esophageal adenocarcinoma patients than in controls(OR = 3.45, 95% CI:1.24-9.58;with AG/AG as a reference).The same trends were observed in patients with squamous cell carcinomas, however, the results did not reach statistical signif icance.CONCLUSION:Presence of the COX-2-1195 GG genotype and of the GG/GG haplotype may result in a higher risk of developing esophageal carcinoma.Jón O Kristinsson Paul van Westerveld Rene HM te Morsche Hennie MJ Roelofs T Wobbes Ben JM Witteman Adriaan CITL Tan Martijn GH van Oijen Jan BMJ Jansen Wilbert HM Peters 2009World Journal of Gastroenterology2009,15,28:11
14Haplotype of prostaglandin synthase 2/cyclooxygenase 2 is involved in the susceptibility to inflammatory bowel disease显示文摘AIM: Prostaglandin G/H synthase 2 (PTGS2 or COX2) is one of the key factors in the cellular response to inflammation.PTGS2 is expressed in the affected intestinal segments of patients with inflammatory bowel diseases (IBD). In IBD patients, non-steroidal anti-inflammatory drugs, which have been shown to reduce both the production and activity of PTGS2, may activate IBD and aggravate the symptoms.We aimed at examining genetic variants of PTGS2 that may be risk factors for IBD.METHODS: We genotyped 291 individuals diagnosed with IBD and 367 controls from the Dutch population for the five most frequent polymorphisms of the PTGS2 gene.Clinical data were collected on all patients. DNA was extracted via normal laboratory methods. Genotyping was carried out using multiplex PCR followed by the Invader Assay and the 5' exonuclease assay (TaqMan). New polymorphism screening was performed by pre-screening with denaturing high-performance liquid chromatography,followed by fluorescent sequencing.RESULTS: Allele 5209G was weakly associated with Crohn's disease (odds ratio [OR] 1.63, 95% confidence interval [CI] 1.03-2.57), and allele 8473T with ulcerative colitis (OR 1.50, 95%CI 1.00-2.27). The haplotype including both alleles showed a strong association with IBD (OR 13.15, 95%CI 3.17-116.15). This haplotype, while rare (-0.3%) in the general population, is found more frequently in patients (3.5%).CONCLUSION: Our data suggest that this haplotype of PTGS2 contributes to the susceptibility of IBD.David G Cox J Bart A Crusius Petra HM Peeters H Bas Bueno-de-Mesquita A Salvador Pe(n|~)a Federico Canzian 2005World Journal of Gastroenterology2005,11,38:10
15联合用药可作为初诊高血压患者的起始治疗方案显示文摘美国预防、检测、评估与治疗高血压全国联合委员会第7次报告(the seventh report of the joint national committee on prevention,detection,evaluation,and treatment of high blood pressure,JNC7)建议临床医师,高血压起始治疗时应考虑使用多药物联合治疗,特别是当血压高于治疗目标值20/10mmHg时,以增加使血压得到控制的可能性。Byrd JB Tavel HM Magid DJ 2011中华高血压杂志2011,19,12:9
16Crucial role of the sarcoplasmic reticulum in the developmental regulation of Ca2+ transients and contraction in cardiomyocytes derived from embryonic stem cells显示文摘Fu JD Li J Tweedie D Yu HM Chen L Wang R Riordon DR Brugh SA Wang SQ Boheler KR Yang HT 2006中国生物学文摘2006,20,7:9
17男性迟发性性腺功能减退症的检查、治疗和监测:国际男科学会(ISA)、国际老年男性研究会(ISSAM)、欧洲泌尿外科学会(EAU)、欧洲泌尿外科学院(EAA)和美国男科学会(ASA)联合推荐显示文摘简介 人口学资料明确显示:老年人口占总人口的百分率正逐年增加。当前,有关老年男性雄激素缺乏的问题逐渐成为令人感兴趣、但又充满争议的世界性话题。已经有横向和纵向的研究资料表明,随着年龄增大,成年男子的雄激素水平逐渐降低,Wang C Nieschlage E Swerdloff R Behre HM Hellstrom WJ Gooren LJ Kaufman JM Legros JJ Lunenfeld B Morales A Morley JE Schulman C Thompson IM Weidner W Wu FCW 伍学焱(翻译) 2011国际生殖健康/计划生育杂志2011,30,1:8
18COX-2 polymorphisms-765G→C and-1195A→G and colorectal cancer risk显示文摘AIM:To determine the possible modulating effect of the COX-2 polymorphisms,-765G→C and-1195A→G, on the risk of colorectal cancer(CRC)in a Dutch population. METHODS:This case-control study includes 326 patients with CRC and 369 age-and gender-matched controls.Genotypes of the COX-2 polymorphisms -765G→C and-1195A→G were determined by polymerase chain reaction-based restriction fragment length polymorphism.COX-2 genotypes and haplotypes were analyzed and odds ratios with 95%confi- dence intervals were estimated by logistic regression. RESULTS:The-765GG genotype was associated with an increased risk of developing CRC(OR,1.45; 95%CI,1.03-2.04).No significant difference was observed in the genotype distribution of the-1195A→ G polymorphism between patients and controls.The GG/AC haplotype was present significantly less often in patients than in controls(OR 0.44;95%CI,0.22-0.85). When the AC,AG and GG haplotypes were investigated separately,the AC haplotype showed a tendency to be less frequent in patients than in controls(OR(AG/AC)0.78; 95%CI,0.57-1.06). CONCLUSION:The-765GG genotype is associatedwith an increased risk of developing CRC and the GG/ AC haplotype seems to protect against CRC.These findings suggest a modulating role for the COX-2 polymorphisms-765G→C and-1195A→G in the development of CRC in a Dutch population.Juliёt H Hoff Rene HM te Morsche Hennie MJ Roelofs Elise MJ van der Logt Fokko M Nagengast Wilbert HM Peters 2009World Journal of Gastroenterology2009,15,36:6
19活性炭吸附甲苯的实验研究及数值模拟显示文摘在15,20,25℃的恒温条件下,实验测试了活性炭吸附有机气体甲苯的吸附穿透曲线和吸附区温度变化曲线.然后根据吸附过程中的传质、传热机理,建立了吸附过程中的数学模型,并应用差分方法借助A-THENAVIUALWORKBENCH对模型进行了数值解,数值模拟了相应温度下的活性炭吸附有机气体甲苯的浓度穿透曲线及其温度穿透曲线,数值计算结果与实验结果很好地相吻合.数学模拟方法为获得在吸附过程中有效传质系数和有效传热系数提供了有效的解决途径,从而为吸附过程的设计、预测和优化提供支持.李立清 张宝杰 曾光明 RHM Hans-Jürgen 杨鼎强 2005哈尔滨工业大学学报2005,37,4:6
20氯化镉影响肾上腺皮质细胞分泌功能的实验研究显示文摘目的 探讨CdCl2 对肾上腺皮质细胞分泌功能、细胞[Ca2 + ]i 调控和能量代谢的毒作用,为深入了解金属内分泌毒性机制提供依据。方法 体外分离培养原代豚鼠肾上腺皮质细胞,采用Fluo - 3/AM 和Fura- red/AM 联合标记、流式细胞术测定细胞[Ca2+ ]i 变化,化学发光法测定ATP 水平,RIA 法测定培养细胞皮质醇分泌水平。结果 ①CdCl2 可浓度依赖性地抑制肾上腺皮质细胞分泌皮质醇的功能,且随时间延长抑制效应愈趋明显,呈现明显的剂量效应和时间效应关系,剂量和时间对抑制效应存在交互作用;②细胞[Ca2 + ]i 随CdCl2 浓度增加而持续上升,表现出剂量效应关系。③细胞ATP 水平随CdCl2 浓度增加而降低,有明显的剂量效应和时间效应关系,而且存在交互作用。结论 一定浓度CdCl2 对肾上腺皮质细胞[Ca2+ ]i 调控、能量代谢和肾上腺皮质激素合成分泌具有直接毒作用。杨杏芬 庄志雄 魏青 杜柳涛 赵敏 陈铁江 HM Shen CN Ong 1999中国职业医学1999,26,6:6
返回顶部 每页显示:
共1562页 首页 上一页 第1页 下一页 末页 /1562 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