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| 1 | Bile acids:Chemistry,physiology,and pathophysiology显示文摘The family of bile acids includes a group of molecular species of acidic steroids with very peculiar physical-chemical and biological characteristics.They are synthesized by the liver from cholesterol through several complementary pathways that are controlled by mechanisms involving finetuning by the levels of certain bile acid species.Although their best-known role is their participation in the digestion and absorption of fat,they also play an important role in several other physiological processes.Thus,genetic abnormalities accounting for alterations in their synthesis,biotransformation and/or transport may result in severe alterations,even leading to lethal situations for which the sole therapeutic option may be liver transplantation.Moreover,the increased levels of bile acids reached during cholestatic liver diseases are known to induce oxidative stress and apoptosis,resulting in damage to the liver parenchyma and,eventually,extrahepatic tissues.When this occurs during pregnancy,the outcome of gestation may be challenged.In contrast,the physical-chemical and biological properties of these compounds have been used as the bases for the development of drugs and as pharmaceutical tools for the delivery of active agents. | Maria J Monte Jose JG Marin Alvaro Antelo Jose Vazquez-Tato | 2009 | World Journal of Gastroenterology2009，15，7： | 36 |
| 2 | 沥青混合料微胶囊自修复技术的研究综述显示文摘为了进一步促进微胶囊自修复技术在中国道路工程领域中的发展与应用,综合国内外最新研究成果对沥青混合料微胶囊自修复技术展开全面的分析,总结微胶囊自修复技术的基本原理、研究现状及进展,系统梳理了自修复微胶囊的性能表征方法、掺加微胶囊沥青材料的自修复性能评价方法,并重点分析不同评价方法的优点与不足。在此基础上,从囊芯材料的选择、囊壁材料的研发、微胶囊的粒径与形状等3个方面概述沥青混合料自修复微胶囊的设计方法;介绍了沥青混合料微胶囊自修复技术的最新室外试验研究进展。结果表明:当前沥青混合料微胶囊自修复技术研究中存在着路用性能研究不系统、评价方法不成熟、微胶囊设计方法不完善等问题;下一步应开展通过数值模拟的方法探讨微胶囊在沥青混合料中的多维受力特性,为微胶囊的精细化设计提供可靠的理论依据;开发能够多次缓释、高耐久性的自修复微胶囊,使其可以在整个路面预养护周期内发挥自修复作用;研发复合自修复路面养护技术,实现沥青路面在预养护阶段不同时间节点的按需自修复。 | 何亮 蔡卓 冯畅 GARCIA Alvaro 马育 | 2018 | 长安大学学报(自然科学版)2018，38，2： | 18 |
| 3 | Outcomes in spasticity after repetitive transcranial magnetic and transcranial direct current stimulations显示文摘Non-invasive brain stimulations mainly consist of repetitive transcranial magnetic stimulation and transcranial direct current stimulation. Repetitive transcranial magnetic stimulation exhibits satisfactory outcomes in improving multiple sclerosis, stroke, spinal cord injury and cerebral palsy-induced spasticity. By contrast, transcranial direct current stimulation has only been studied in post-stroke spasticity. To better validate the efficacy of non-invasive brain stimulations in improving the spasticity post-stroke, more prospective cohort studies involving large sample sizes are needed. | Aysegul Gunduz Hatice Kumru Alvaro Pascual-Leone | 2014 | Neural Regeneration Research2014，9，7： | 12 |
| 4 | Intra-hepatic and extra-hepatic cholangiocarcinoma:New insight into epidemiology and risk factors显示文摘Cholangiocarcinoma(CCA) is a malignant tumour that arises from biliary epithelium at any portion of the biliary tree.CCA is currently classified as intra-hepatic or extra-hepatic CCA(EH-CCA).Recent evidences suggest that intra-hepatic CCA(IH-CCA) and EH-CCA are biologically different cancers,giving further support to a number of recent epidemiological studies showing large differences in terms of incidence,mortality and risk factors.The purpose of this manuscript is to review recent literature dealing with the descriptive epidemiology and risk factors of CCA with a special effort to compare IH-with EH-CCA. | Vincenzo Cardinale Rossella Semeraro Alessia Torrice Manuela Gatto Cristina Napoli Maria Consiglia Bragazzi Raffaele Gentile Domenico Alvaro | 2010 | World Journal of Gastrointestinal Oncology2010，2，11： | 12 |
| 5 | Colorectal peritoneal metastases:Optimal management review显示文摘The peritoneum is a common site of dissemination for colorrectal cancer, with a poorer prognosis than other sites of metastases. In the last two decades, it has been considered as a locoregional disease progression and treated as such with curative intention treatments. Cytoreductive surgery(CRS) and hyperthermic intraperitoneal chemotherapy(HIPEC) is the actual reference treatment for these patients as better survival results have been reached as compared to systemic chemotherapy alone, but its therapeutic efficacy is still under debate. Actual guidelines recommend that the management of colorectal cancer with peritoneal metastases should be led by a multidisciplinary team carried out in experienced centers and consider CRS + HIPEC for selected patients. Accumulative evidence in the last three years suggests that this is a curative treatment that may improve patients disease-free survival, decrease the risk of recurrence, and does not increase the risk of treatment-related mortality. In this review we aim to gather the latest results from referral centers and opinions from experts about the effectiveness and feasibility of CRS + HIPEC for treating peritoneal disease from colorectal malignancies. | Juan Manuel Sánchez-Hidalgo Lidia Rodríguez-Ortiz Alvaro Arjona-Sánchez Sebastián Rufián-Pena Angela Casado-Adam Antonio Cosano-Alvarez Javier Briceno-Delgado | 2019 | World Journal of Gastroenterology2019，25，27： | 11 |
| 6 | Gastrointestinal stromal tumors:a multidisciplinary challenge显示文摘Gastrointestinal stromal tumors(GISTs) are the most common mesenchymal tumors located in the alimentary tract. Its usual manifestation is gastrointestinal bleeding. However, small asymptomatic lesions are frequently detected as incidental finding. Characteristically, most GISTs(> 95%) are positive for the KIT protein(CD117) by IHC staining and approximately 80%-90% of GISTs carry a mutation in the c-KIT or PDGFRA genes. Mutational analysis should be performed when planning adjuvant and neoadjuvant therapy, due to its possible resistance to conventional treatment. The arise of tyrosine kinase inhibitor has supposed a revolution in GISTs treatment being useful as adjuvant, neoadjuvant or recurrence disease treatment. That is why a multidisciplinary approach to this disease is required. The correct characterization of the tumor at diagnosis(the diagnosis of recurrences and the evaluation of the response to treatment with tyrosine kinase inhibitors) is fundamental for facing these tumors and requires specialized Endoscopist, Radiologists and Nuclear Medicine Physician. Surgery is the only potentially curative treatment for suspected resectable GIST. In the case of high risk GISTs, surgery plus adjuvantImatinib-Mesylate for 3 years is the standard treatment. Neoadjuvant imatinib-mesylate should be considered to shrink the tumor in case of locally advanced primary or recurrence disease, unresectable or potentially resectable metastasic tumors, and potentially resectable disease in complex anatomic locations to decrease the related morbidity. In the case of Metastatic GIST under Neoadjuvant treatment, when there are complete response, stable disease or limited disease progression, complete cytoreductive surgery could be a therapeutic option if feasible. | Juan Manuel Sanchez-Hidalgo Manuel Duran-Martinez Rafael Molero-Payan Sebastian Rufian-Pena Alvaro Arjona-Sanchez Angela Casado-Adam Antonio Cosano-Alvarez Javier Briceno-Delgado | 2018 | World Journal of Gastroenterology2018，24，18： | 10 |
| 7 | Multiple cells of origin in cholangiocarcinoma underlie biological,epidemiological and clinical heterogeneity显示文摘Recent histological and molecular characterization of cholangiocarcinoma(CCA) highlights the heterogeneity of this cancer that may emerge at different sites of the biliary tree and with different macroscopic or morphological features.Furthermore,different stem cell niches have been recently described in the liver and biliarytree,suggesting this as the basis of the heterogeneity of intrahepatic(IH)-and extrahepatic(EH)-CCAs,which are two largely different tumors from both biological and epidemiological points of view.The complexity of the organization of the liver stem cell compartments could underlie the CCA clinical-pathological heterogeneity and the criticisms in classifying primitive liver tumors.These recent advances highlight a possible new classification of CCAs based on cells of origin and this responds to the need of generating homogenous diagnostic,prognostic and,hopefully,therapeutic categories of IH-and EH-CCAs. | Vincenzo Cardinale Guido Carpino Lola Reid Eugenio Gaudio Domenico Alvaro | 2012 | World Journal of Gastrointestinal Oncology2012，4，5： | 10 |
| 8 | Estrogens and the pathophysiology of the biliary tree显示文摘有关不同纸巾上的雌激素效果的科学框架在最后十年期间极其膨胀了,当时雌激素受体(嗯) 子类型被识别。雌激素是不仅必要的因为雌性生殖系统,而且他们也包括心血管系统,骨头,大脑和肝在另外的纸巾控制基本功能。最近,在他们调制 cholangiocytes 的增生的和分泌活动的地方,雌激素被显示了指向胆汁的树,上皮细胞衬里胆汁管。由在两雌激素受体(ER-alpha ) 并且(上扮演嗯贝它) 子类型,并且由激活 genomic 或 non-genomic 小径,雌激素在生长因素和 cytokines 的复杂的环起一个关键作用,它调制 cholangiocytes 的增生的反应损坏。明确地,雌激素激活细胞内部的发信号的串联[英皇家空军之阶级最低之兵( 1/2 )(细胞外的调整家族 ases ( 1/2 ),PI3- kinase/AKT (phosphatidylinositol-3' kinase/AKT )]典型地代表象象生长因素( IGF1 )一样的胰岛素那样的生长因素,神经生长因素( NGF )和脉管的内皮生长因素( VEGF ),因此加强他们的行动。另外,雌激素在增殖的 cholangiocytes 刺激不同生长因素的分泌物。这评论明确地处理与雌激素处于正常、病理学的条件由调制 cholangiocyte 功能的角色和机制有关的最近的进展。 | Domenico Alvaro Maria Grazia Mancino Paolo Onori Antonio Franchitto Gianfranco Alpini Heather Francis Shannon Glaset Eugenio Gaudio | 2006 | World Journal of Gastroenterology2006，12，22： | 9 |
| 9 | Cholangiocytes and blood supply显示文摘胆汁的树的微脉管的供应,仙子胆管丛(PBP ) ,源自肝的动脉树枝和流动进肝窦状隙。PBP 的详细三维的研究被使用扫描电子执行了显微镜学脉管的腐蚀演员组(SEMvcc ) 技术。认为 PBP 在支持胆汁的上皮的能分泌、吸收性的功能起一个基本作用,他们在常态和病理的组织被探索。正常的肝证明 PBP 安排在 extra-附近 -- 并且肝内的胆汁的树。在小门道, PBP 被日益增多地继续了它显示出一个更复杂的脉管的网络的额外的肝的 PBP 的 capillaries 的单个层描绘。在普通的管结扎(BDL ) 以后,胆汁管和 PBP 增长的进步修正被观察。PBP 介绍在许多胆汁管附近安排的一个三维的网络并且作为容器的捆出现,由有典型圆网孔结构的同类的直径的 capillaries 镇静。PBP 网络从显得正常的正弦曲线网络是容易可区分的。在 BDL 期间考虑 PBP 的庞大的延期,脉管的内皮生长因素(VEGF ) 起的可能的作用被评估。VEGF -- A, VEGF-C 和他们的相关受体高度出现了在 BDL 老鼠的增殖的 cholangiocytes 积极的免疫。到象肝的动脉结扎一样的 BDL 老鼠的 anti-VEGF-A 或 anti-VEGF-C 抗体的管理导致了一个减少的胆汁管团。rVEGF 的管理 -- 到 BDL 肝的动脉的 A 绑扎老鼠阻止了 cholangiocyte 增长和 VEGF 的减少 -- 表情作为与 BDL 控制老鼠相比。这些数据处于 cholangiocyte 增长的条件建议胆汁的树的动脉的血供给的角色,例如它发生在长期的胆汁郁积期间。在另一方面, VEGF 作为在 cholangiocytes 和 PBP endothelial 之间的串音的一个工具起的作用建议 VEGF 版本和功能的那操作能为肝的动脉或胆汁的树的损坏描绘的人的病理学的条件代表治疗学的策略。 | Eugenio Gaudio Antonio Franchitto Luigi Pannarale Guido Carpino Gianfranco Alpini Heather Francis Shannon Glaser Domenico Alvaro Paolo Onori | 2006 | World Journal of Gastroenterology2006，12，22： | 9 |
| 10 | 自愈合胶囊对沥青混合料的性能影响研究显示文摘为研究自愈合胶囊对沥青混合料性能的影响,在沥青混合料拌和过程中分别掺入不同质量分数(0.00%,0.50%,0.75%,1.00%)的自愈合胶囊,利用车辙仪碾压成型后取芯进行稳定度、间接拉伸强度、冻融劈裂强度、肯塔堡飞散和疲劳性能实验.结果表明,沥青混合料肯塔堡飞散损失随自愈合胶囊掺量的增加变化不大,自愈合胶囊对混合料的抗掉粒性能基本没有影响;自愈合胶囊掺量为0.50%时,能够提高沥青混合料的间接拉伸强度、水稳定性和疲劳性能,继续增加胶囊掺量,上述性能将会严重下降,甚至不满足相关规范要求. | 张雷 刘全涛 吴少鹏 汪曾峰 Alvaro Garcia | 2018 | 武汉理工大学学报(交通科学与工程版)2018，42，1： | 9 |
| 11 | Low-cost disordered carbons for Li/S batteries: A high- performance carbon with dual porosity derived from cherry pits显示文摘一微 -- 并且从樱桃坑废物获得并且与 H 3 PO 4 酸为 Li/S 电池作为硫主人被学习了。碳有 1,662 m 2 灀楡的一个高特定的表面区域吗? | Celia Hernandez-Rentero Rafael Cordoba Noelia Moreno Alvaro Caballero Julian Morales Mara Olivares-Marin Vicente Gomez-Serrano | 2018 | Nano Research2018，11，1： | 7 |
| 12 | Peritoneal metastases of colorectal origin treated by cytoreduction and HIPEC: An overview显示文摘Colorectal peritoneal carcinomatosis was considered a terminal condition with a merely palliative treatment that included only supportive care, palliative surgery and the best systemic chemotherapy. Since the birth of a new approach, cytoreductive surgery with peritonectomy procedures together with hyperthermic intraperitoneal chemotherapy and/or early postoperative intraperitoneal chemotherapy to treat peritoneal carcinomatosis, many research groups contributed with promising results using this procedure being up to date this strategy the only one that has shown curative benefits on colorectal peritoneal carcinomatosis achieving reported overall survival rates up to 64 mo and fiveyear survival rates up to 51%. The aim of this paper is to expose an updated overview of the therapeutic possibilities of these procedures in colorectal peritoneal metastases in the same way that our Unit of Oncologic Surgery has performed since 1997 with more than four hundred procedures. | Alvaro Arjona-Sánchez Francisco Javier Medina-Fernández Francisco Cristobal Mu?oz-Casares Angela Casado-Adam Juan Manuel Sánchez-Hidalgo Sebastián Rufián-Pe?a | 2014 | World Journal of Gastrointestinal Oncology2014，6，10： | 7 |
| 13 | Common features between neoplastic and preneoplastic lesions of the biliary tract and the pancreas显示文摘the bile duct system and pancreas show many similarities due to their anatomical proximity and common embryological origin.Consequently,preneoplastic and neoplastic lesions of the bile duct and pancreas share analogies in terms of molecular,histological and pathophysiological features.Intraepithelial neoplasms are reported in biliary tract,as biliary intraepithelial neoplasm(BilIN),and in pancreas,as pancreatic intraepithelial neoplasm(PanIN).Both can evolve to invasive carcinomas,respectively cholangiocarcinoma(CCA)and pancreatic ductal adenocarcinoma(PDAC).Intraductal papillary neoplasms arise in biliary tract and pancreas.Intraductal papillary neoplasm of the biliary tract(IPNB)share common histologic and phenotypic features such as pancreatobiliary,gastric,intestinal and oncocytic types,and biological behavior with the pancreatic counterpart,the intraductal papillary mucinous neoplasm of the pancreas(IPMN).All these neoplastic lesions exhibit similar immunohistochemical phenotypes,suggesting a common carcinogenic process.Indeed,CCA and PDAC display similar clinic-pathological features as growth pattern,poor response to conventional chemotherapy and radiotherapy and,as a consequence,an unfavorable prognosis.The objective of this review is to discuss similarities and differences between the neoplastic lesions of the pancreas and biliary tract with potential implications on a common origin from similar stem/progenitor cells. | Piera Zaccari Vincenzo Cardinale Carola Severi Federica Pedica Guido Carpino Eugenio Gaudio Claudio Doglioni Maria Chiara Petrone Domenico Alvaro Paolo Giorgio Arcidiacono Gabriele Capurso | 2019 | World Journal of Gastroenterology2019，25，31： | 6 |
| 14 | Bone marrow-derived monocyte infusion improves hepatic fibrosis by decreasing osteopontin,TGF-β1,IL-13 and oxidative stress显示文摘AIM To evaluate the therapeutic effects of bone marrowderived CD11b+CD14+ monocytes in a murine model of chronic liver damage. METHODS Chronic liver damage was induced in C57BL/6 mice by administration of carbon tetrachloride and ethanol for 6 mo. Bone marrow-derived monocytes isolated by immunomagnetic separation were used for therapy. The cell transplantation effects were evaluated by morphometry,biochemical assessment,immunohistochemistry and enzyme-linked immunosorbent assay. RESULTS CD11b+CD14+ monocyte therapy significantly reduced liver fibrosis and increased hepatic glutathione levels. Levels of pro-inflammatory cytokines,including tumor necrosis factor-α,interleukin(IL)-6 and IL-1β,in addition to pro-fibrotic factors,such as IL-13,transforming growth factor-β1 and tissue inhibitor of metalloproteinase-1 also decreased,while IL-10 and matrix metalloproteinase-9 increased in the monocytetreated group. CD11b+CD14+ monocyte transplantation caused significant changes in the hepatic expression of α-smooth muscle actin and osteopontin. CONCLUSION Monocyte therapy is capable of bringing about improvement of liver fibrosis by reducing oxidative stress and inflammation,as well as increasing antifibrogenic factors. | Veruska Cintia Alexandrino de Souza Thiago Almeida Pereira Valéria Wanderley Teixeira Helotonio Carvalho Maria Carolina Accioly Brelaz de Castro Carolline Guimaraes D’assuncao Andreia Ferreira de Barros Camila Lima Carvalho Virgínia Maria Barros de Lorena Vláudia Maria Assis Costa Alvaro Aguiar Coelho Teixeira Regina Celia Bressan Queiroz Figueiredo Sheilla Andrade de Oliveira | 2017 | World Journal of Gastroenterology2017，23，28： | 6 |
| 15 | Implicit large eddy simulation of unsteady cloud cavitation around a plane-convex hydrofoil显示文摘The present paper focuses on the erosive cavitation behavior around a plane convex hydrofoil. The Zwart-Gerber-Belamri cavitation model is implemented in a library form to be used with the OpenFOAM. The implicit large eddy simulation(ILES) is applied to analyze the three-dimensional unsteady cavitating flow around a plane convex hydrofoil. The numerical results in the cases under the hydrodynamic conditions, which were experimentally tested at the high speed cavitation tunnel of the école Polytechnique Fédérale de Lausanne(EPFL), clearly show the sheet cavitation development, the shedding and the collapse of vapor clouds. It is noted that the cavitation evolutions including the maximum vapor length, the detachment and the oscillation frequency, are captured fairly well. Furthermore, the pressure pulses due to the cavitation development as well as the complex vortex structures are reasonably well predicted. Consequently, it may be concluded that the present numerical method can be used to investigate the unsteady cavitation around hydrofoils with a satisfactory accuracy. | HIDALGO Victor 罗先武 ESCALER Xavier 季斌 AGUINAGA Alvaro | 2015 | Journal of Hydrodynamics2015，27，6： | 5 |
| 16 | In vitro effect of amoxicillin and clarithromycin on the 3' region of cagA gene in Helicobacter pylori isolates显示文摘AIM:To evaluate the in vitro effect of amoxicillin and clarithromycin on the cag pathogenicity island(cag PAI).METHODS:One hundred and forty-nine clinical isolates of Helicobacter pylori(H.pylori)cultured from gastric biopsies from 206 Colombian patients with dyspeptic symptoms from a high-risk area for gastric cancer were included as study material.Antimicrobial susceptibility was determined by the agar dilution method.Resistant isolates at baseline and in amoxicillin and clarithromycin serial dilutions were subjected to genotyping(cagA,vacA alleles s and m),Glu-Pro-Ile-Tyr-Ala(EPIYA)polymerase chain reaction and random amplified polymorphic DNA(RAPD).Images of the RAPD amplicons were analyzed by Gel-Pro Analyzer 4.5program.Cluster analyses was done using SPSS 15.0statistical package,where each of the fingerprint bands were denoted as variables.Dendrograms were designed by following Ward’s clustering method and the estimation of distances between each pair of H.pylori isolates was calculated with the squared Euclidean distance.RESULTS:Resistance rates were 4%for amoxicillin and 2.7%for clarithromycin with 2%double resistances.Genotyping evidenced a high prevalence of the genotype cagA-positive/vacA s1m1.The 3’region of cagA gene was successfully amplified in 92.3%(12/13)of the baseline resistant isolates and in 60%(36/60)of the resistant isolates growing in antibiotic dilutions.Upon observing the distribution of the number of EPIYA repetitions in each dilution with respect to baseline isolates,it was found that in 61.5%(8/13)of the baseline isolates,a change in the number of EPIYA repetitions lowered antibiotic pressure.The gain and loss of EPIYA motifs resulted in a diversity of H.pylori subclones after bacterial adjustment to changing conditions product of antibiotic pressure.RAPD PCR evidenced the close clonal relationship between baseline isolates and isolates growing in antibiotic dilutions.CONCLUSION:Antibiotic pressure does not induce loss of the cag pathogenicity island,but it can leadin most cases-to genetic rearrangements within the3’region cagA of the founding bacteria that can affect the level of tyrosine phosphorylation impacting on its cellular effects and lead to divergence of cagA-positive subclones. | Javier Andrés Bustamante-Rengifo Andrés Januer Matta Alvaro Pazos Luis Eduardo Bravo | 2013 | World Journal of Gastroenterology2013，19，36： | 5 |
| 17 | Adjuvant chemotherapy in breast cancer: To use or not to use, the anthracyclines显示文摘Breast cancer continues to be one of the leading causes of cancer mortality in the world. The treatment generally involves multiple modalities including surgery, radiation and/or chemotherapy. Anthracyclines, one of the first chemotherapeutic agents introduced in the 1960 s, has been the backbone for the last 30 years and has been used extensively so far. However, the cardiac toxicity and the concern for secondary hematological malignancy has always been a challenge. A better understanding of the tumor biology, role of Her2 expression and the discovery of trastuzumab and other anti-Her 2 agents along with other effective novel therapeutic options, have revolutionized the treatment for breast cancer. The role of anthracyclines has come under close scrutiny, especially in the adjuvant setting for patients with early stage breast cancer and those with low or intermediate risk of disease recurrence. Recent studies have highlighted such a shift in the use of anthracyclines in both the academic and community clinical practice. However, in patients with a high risk of relapse, anthracyclines still hold promise. Ongoing clinical trials are underway to further define the role of anthracyclines in such a patient population. This review highlights the development, clinical utility, limitations and potential future use of anthracyclinesin the adjuvant setting for patients with breast cancer. We consulted Pub Med, Scopus, MEDLINE, ASCO annual symposium abstracts, and http://gffzzd3f38a9638994581hku0u5kcfnc0u66ux.ffgz.tsg.suse.edu.cn/ for the purpose of this review. | Jennifer A Crozier Abhisek Swaika Alvaro Moreno-Aspitia | 2014 | World Journal of Clinical Oncology2014，5，3： | 5 |
| 18 | New insights on cholangiocarcinoma显示文摘Cholangiocarcinoma(CCA) is a devastating cancer arising from the neoplastic transformation of the biliary epithelium.It is characterized by a progressive increase in incidence and prevalence.The only curative therapy is radical surgery or liver transplantation but,unfortunately,the majority of patients present with advanced stage disease,which is not amenable to surgical therapies.Recently,proposed serum and bile biomarkers could help in the screening and surveillance of categories at risk and in diagnosing CCA at an early stage.The molecular mechanisms triggering neoplastic transformation and growth of biliary epithelium are still undef ined,but signif icant progress has been achieved in the last few years.This review deals with the most recent advances on epidemiology,biology,and clinical management of CCA. | Manuela Gatto Domenico Alvaro | 2010 | World Journal of Gastrointestinal Oncology2010，2，3： | 5 |
| 19 | Punctual mutations in 23S rRNA gene of clarithromycinresistant Helicobacter pylori in Colombian populations显示文摘AIM To characterize punctual mutations in 23S rRNA gene of clarithromycin-resistant Helicobacter pylori(H. pylori) and determine their association with therapeutic failure.METHODS PCR products of 23S rRNA gene V domain of 74 H. pylori isolates; 34 resistant to clarithromycin(29 from a low-risk gastric cancer(GC) population: TumacoColombia, and 5 from a high-risk population: TuquerresColombia) and 40 from a susceptible population(28 from Tumaco and 12 from Túquerres) were sequenced using capillary electrophoresis. The concordance between mutations of V domain 23S rRNA gene of H. pylori and therapeutic failure was determined using the Kappa coefficient and Mc Nemar's test was performed to determine the relationship between H. pylori mutationsand clarithromycin resistance.RESULTS23S rRNA gene from H. pylori was amplified in 56/74 isolates, of which 25 were resistant to clarithromycin(20 from Tumaco and 5 from Túquerres, respectively). In 17 resistant isolates(13 from Tumaco and 4 from Túquerres) the following mutations were found: A1593 T1, A1653 G2, C1770 T, C1954 T1, and G1827 C in isolates from Tumaco, and A2144 G from Túquerres. The mutations T2183 C, A2144 G and C2196 T in H. pylori isolates resistant to clarithromycin from Colombia are reported for the first time. No association between the H. pylori mutations and in vitro clarithromycin resistance was found. However, therapeutic failure of eradication treatment was associated with mutations of 23S rRNA gene in clarithromycin-resistant H. pylori(κ = 0.71).CONCLUSION The therapeutic failure of eradication treatment in the two populations from Colombia was associated with mutations of the 23S rRNA gene in clarithromycinresistant H. pylori. | Andrés Jenuer Matta Diana Carolina Zambrano Alvaro Jairo Pazos | 2018 | World Journal of Gastroenterology2018，24，14： | 5 |
| 20 | 中国启东肝癌预防:黄曲霉毒素生物标志物研究的经验(英文)显示文摘原发性肝癌一直是中国启东癌症死亡的首要原因,这一地区的110万居民中大约每年有800人死于原发性肝癌。流行病学研究已经强调了乙肝病毒感染和肝致癌物黄曲霉素的饮食暴露在启东和其他流行地区作为关键相互作用的风险决定因素的重要性。由于生物标志物的发展,使得在病例对照研究和其他群体研究中可以检测这些风险因素的流行程度。20世纪80年代曾经在启东进行了乙肝病毒疫苗接种试点,但直到本世纪初才在新生儿上普遍接种。尽管目前疫苗接种对癌症死亡率的影响微乎其微,但该项目旨在减缓这一地区未来几代人肝脏疾病包括肝癌的发展。减少对黄曲霉毒素暴露的策略也是必需的,尤其是对于那些已经感染乙肝病毒的人群。我们已经进行了一系列原理验证性的临床试验,包括使用药物、膳食补充剂和食物来改变不可避免的暴露后黄曲霉素的代谢及排出。使用黄曲霉素生物标志物作为中间指标,奥替普拉、叶绿素和西兰花豆芽饮料已被证明有效,突出了低成本化学预防途径在预防环境致癌中的作用。值得注意的是,最近对存档的血清样本的回顾性分析表明,启东的黄曲霉素暴露在过去的25年里下降了40倍,这可能是由从玉米到大米的主食变化带来的。因此,一级预防,伴随着20世纪80年代经济和农业政策改变的作用,带来了出乎意料的在短时间内消除这个地区肝癌地方性流行的希望。 | Patricia A.Egner 王金兵 朱源荣 Lisa P.Jacobson Derek Ng Alvaro Munoz Jed W.Fahey 陈建国 陈陶阳 钱耕荪 John D.Groopman Thomas W.Kensler | 2013 | 化学进展2013，25，9： | 5 |
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