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| 1 | Impact of concomitant use of proton pump inhibitors and clopidogrel or ticagrelor on clinical outcomes in patients with acute coronary syndrome显示文摘BackgroundThere 是在质子泵禁止者(PPI ) 和 clopidogrel 之间的可能的不利相互作用上的大争论。另外, PPI 的使用是否少些影响 ticagrelor 遗体的临床的功效,知道。在经皮的冠的干预(一种总线标准) .MethodsWe 回顾地从 “ 分析了数据以后,我们试图与急性冠的症候群(交流)在病人在临床的结果上决定 PPI 和 clopidogrel 或 ticagrelor 的伴随物管理的影响;真实 world” ;,国际,在 2003 和 2014 之间的多中心登记( n = 15,401 )并且在1年的合成主要端点上估计了 PPI 和 clopidogrel 或 ticagrelor 的伴随物管理的影响(所有原因死亡收到 PPI 的病人更老,更经常女性,并且是更可能的有 comorbidities。没有协会为收到 clopidogrel 的病人在 PPI 使用和主要端点之间被观察(调整 HR:1.036;95% CI:0.903-1.189 ) 或 ticagrelor (调整 HR:2.320;95% CI:0.875-6.151 )(P 相互作用 = 0.2004 ) 。同样, PPI 的使用没与所有原因死亡,重新梗塞,或与交流后面的一种总线标准的为与任何一个 clopidogrel 对待的病人或 ticagrelor.ConclusionsIn 病人的严重流血的减少的风险的增加的风险被联系, PPI 的伴随物使用没在收到 clopidogrel 或 ticagrelor 的病人与不利结果的增加的风险被联系。我们的调查结果显示与 clopidogrel 或 ticagrelor 在联合使用 PPI 是合理的,特别在有胃肠的流血的更高的风险的病人。 | Yan YAN Xiao WANG Jing-Yao FAN Shao-Ping NIE Sergio Raposeiras-Roubin Emad Abu-Assi Jose P Simao Henriques Fabrizio D'Ascenzo Jorge Saucedo Jose R Gonzfilez-Juanatey Stephen B Wilton Wouter J Kikkert Ivlin Nufiez-Gil Albert Ariza-Sole Xian-Tao SONG Dimitrios Alexopoulos Christoph Liebetrau Tetsuma Kawaji Claudio Moretti Zenon Huczek Toshiharu Fujii Luis C Correia Masa-aki Kawashiril Sasko Kedev | 2016 | Journal of Geriatric Cardiology2016，13，3： | 12 |
| 2 | Growth mechanism of octahedron-like BaMoO_4 microcrystals processed in microwave-hydrothermal:Experimental observations and computational modeling显示文摘Octahedron-like BaMoO4 microcrystals were synthesized by the co-precipitation method at room temperature and processed in microwave-hydrothermal at 413 K for different times (from 30 min to 5 h). These microcrystals were analyzed by X-ray diffraction (XRD),field-emission gun scanning electron microscopy (FEG-SEM) and transmission electron microscopy (TEM). XRD patterns showed that this material presents a tetragonal structure without the presence of deleterious phases. FEG-SEM and TEM micrographs revealed that the BaMoO4 microcrystals present an octahedron-like morphology with agglomerate nature and poly-disperse particle size distribution. These micrographs also indicated that the microcrystals grow along the [0 0 1] direction. The observed crystallographic planes in these structures were modeled computationally and a crystal growth model was proposed in order to explain the morphological changes as a function of processing time. | Laécio Santos Cavalcante Júlio César Sczancoski Rircado Luis Tranquilin José Arana Varela Elson Longo Marcelo Ornaghi Orlandi | 2009 | Particuology2009，7，5： | 9 |
| 3 | Direct-fed microbes: A tool for improving the utilization of low quality roughages in ruminants显示文摘For many years, ruminant nutritionists and microbiologists have been interested in manipulating the microbial ecosystem of the rumen to improve production efficiency of different ruminant species. Removal and restriction of antibiotics subtherapeutic uses from ruminant diets has amplified interest in improving nutrient utilization and animal performance and search for more safe alternatives. Some bacterial and fungal microorganisms as a direct-fed microbial(DFM) can be the most suitable solutions. Microorganisms that are commonly used in DFM for ruminants may be classified mainly as lactic acid producing bacteria(LAB), lactic acid utilizing bacteria(LUB), or other microorganism's species like Lactobacillus, Bifidobacterium, Enterococcus, Streptococcus, Bacillus, Propionibacterium, Megasphaera elsdenii and Prevotellabryantii, in addition to some fungal species of yeast such as Saccharomyces and Aspergillus. A definitive mode of action for bacterial or fungal DFM has not been established; although a variety of mechanisms have been suggested. Bacterial DFM potentially moderate rumen conditions, and improve weight gain and feed efficiency. Fungal DFM may reduce harmful oxygen from the rumen, prevent excess lactate production, increase feed digestibility, and alter rumen fermentation patterns. DFM may also compete with and inhibit the growth of pathogens, immune system modulation, and modulate microbial balance in the gastrointestinal tract. Improved dry matter intake, milk yield, fat corrected milk yield and milk fat content were obtained with DFM administration. However, the response to DFM is not constant; depending on dosages, feeding times and frequencies, and strains of DFM. Nonetheless, recent studies have supported the positive effects of DFM on ruminant performance. | Mona M Y Elghandour Abdelfattah Z M Salem Jose S Martínez Castaeda Luis M Camacho Ahmed E Kholif Juan C Vázquez Chagoyán | 2015 | Journal of Integrative Agriculture2015，14，3： | 7 |
| 4 | Highly efficient derivation of ventricular cardiomyocytes from induced pluripotent stem cells with a distinct epigenetic signature显示文摘从 pluripotent 干细胞导出的 Cardiomyocytes 能在药测试,疾病建模和基于房间的治疗被使用。没有 procardiogenic 生长因素,然而,从 pluripotent 干细胞的 cardiomyogenesis 的效率通常是低的,产生 cardiomyocyte 人口是异构的。这里,我们证明导致的 pluripotent 干细胞( iPSCs )能从鼠科的室的 myocytes ( VM )被导出,并且与从各种各样的体的房间类型导出的 iPSCs 的另外的报告一致,自发地作为与遗传上匹配的胚胎的干细胞(转换字符)或 iPSCs 相比区分 cardiomyocytes 进跳动的显著地更高的倾向从尾巴尖端成纤维细胞导出的 导出VM 的 iPSCs ( ViPSCs )展览。惊人地,导出 ViPSC 的 cardiomyocytes 显示的多数室的显型。在 ViPSCs 的提高的室的 myogenesis 在区别的早阶段经由心血管的祖先的增加的数字被调停。以便从 ViPSCs 调查提高的室的 myogenesis 的机制,我们执行了全球基因表示和 DNA methylation 分析,它揭示了可以涉及在 pluripotent 干细胞指定 VM 命运的不同 epigenetic 签名。 | Huansheng Xu B Alexander Yi Hao Wu Christoph Bock Hongcang Gu Kathy O Lui Joo-Hye C Park Ying Shao Alyssa K Riley Ibrahim J Domian Erding Hu Robert Willette John Lepore Alexander Meissner Zhong Wang Kenneth R Chien | 2012 | Cell Research2012，22，1： | 7 |
| 5 | Advancing research diagnostic criteria for Alzheimer’s disease: the IWG-2 criteria显示文摘 | Bruno Dubois Howard H Feldman Claudia Jacova Harald Hampel José Luis Molinuevo Kaj Blennow Steven T DeKosky Serge Gauthier Dennis Selkoe Randall Bateman Stefano Cappa Sebastian Crutch Sebastiaan Engelborghs Giovanni B Frisoni Nick C Fox Douglas Galasko Ma | 2014 | Lancet Neurology2014，，6： | 7 |
| 6 | Is autoimmune hepatitis a frequent finding among HCV patients with intense interface hepatitis?显示文摘AIM:To evaluate the overlap of autoimmune hepatitis in hepatitis C virus(HCV)-infected patients with intense interface hepatitis.METHODS:Among 1759 patients with hepatitis C submitted to liver biopsy,92(5.2%) presented intense interface hepatitis.These patients were evaluated regarding the presence of antinuclear antibody(ANA),anti-smooth muscle antibody(SMA) and anti-liver/kidney microsomal antibody(LKM-1),levels of γ-globulin and histological findings related to autoimmune hepatitis(plasma cell infiltrate and presence of rosettes).RESULTS:Among patients with hepatitis C and intense interface hepatitis there was a low prevalence of autoantibodies(ANA=12%,SMA=5%,LKM-1=0%) and the median γ-globulin level was within the normal range.Typical histological findings of autoimmune disease were observed in only two cases(2%).After applying the score for diagnosis of autoimmune hepatitis,only one patient was classified with a definitive diagnosis of autoimmune hepatitis.Since overlap with autoimmune hepatitis was not the explanation for the intense necroinflammatory activity in patients with chronic hepatitis C we sought to identify the variables associated with this finding.The presence of intense interface hepatitis was associated with more advanced age,both at the time of infection and at the time of the biopsy,and higher prevalence of blood transfusion and alcohol abuse.CONCLUSION:Although possible,overlap with autoimmune hepatitis is a very rare association in HCV-infected patients with intense interface hepatitis,an unusual presentation which seems to be related to other host variables. | Rosilene G Badiani Vitória Becker Renata M Perez Carla AL Matos Lara B Lemos Valéria P Lanzoni Luis Eduardo C Andrade Alessandra Dellavance Antonio Eduardo B Silva Maria Lucia G Ferraz | 2010 | World Journal of Gastroenterology2010，16，29： | 7 |
| 7 | 双峰分布颗粒体系的多角度动态光散射数据反演(英文)显示文摘采用多角度动态光散射和加权正则化反演方法,对4组模拟的双峰分布颗粒体系(100/600nm,200/600nm,300/600nm和350/600nm)分别选取1、3、6和10个散射角进行测量.粒度反演结果表明,采用加权正则化方法反演双峰颗粒体系的多角度动态光散射测量数据,可获得峰值位置比小于2∶1且含有大粒径(>350nm)颗粒的双峰颗粒粒度分布.采用标准聚苯乙烯乳胶颗粒进行实测的结果验证了这一结论.得到含大粒径颗粒的双峰粒度分布反演结果的原因在于,多角度动态光散射能提供更多的大粒径颗粒的粒度信息,加权正则化反演方法能减少测量数据中的噪声,因而多角度动态光散射测量数据的加权反演能实现峰值位置比小于2∶1且含有大粒径颗粒的双峰颗粒体系的测量. | 徐敏 申晋 朱新军 THOMAS John C CLEMENTI Luis A VEGA Jorge R | 2017 | 光子学报2017，46，2： | 7 |
| 8 | Joint effect among p53, CYP1A1, GSTM1 polymorphism combinations and smoking on prostate cancer risk: an exploratory genotype-environment interaction study显示文摘瞄准:与前列腺癌症的调节的人冒的风险的一个环境因素在联合估计几个基因因素的角色。我们集中于与房间控制联系的低外显率的基因的等位基因变体, detoxification 进程并且吸烟。方法:在盒子控制研究,我们比较了与他们的前列腺癌症风险带 p53cd72 职业人员等位基因, CYP1A1 M1 等位基因和 GSTM1 空遗传型的人。结果:为带专业版的吸烟者的联合风险 * 并且 M1 * ,专业版 * 并且 GSTM1null 或 GSTM1 0 和 CYP1A1 M1 * 变体显著地更高(机会比率[或] :13.13, 95% 信心间隔[CI ] :2.41-71.36;或:3.97, 95% CI:1.13-13.95 并且或:6.87, 95% CI:1.68-27.97,分别地) 不为参考组,并且为不抽烟的人与那相比是重要的。或为在 p53cd72, GSTM1 和 CYP1A1 之中的联合,在吸烟者的 M1 断然并且显著地与不抽烟的人相比并且与通常认为的最低风险组相比与前列腺癌症风险被联系(或:8.87, 95% CI:1.25-62.71 ) 。结论:我们的结果建议那在修改前列腺癌症的一个重要角色在学习人口上冒的风险的 p53cd72, CYP1A1, GSTM1 等位基因和吸烟的戏的联合,哪个带易受影响的遗传型的吸烟者可能有的工具显著地更高的风险比带非易受影响的遗传型的那些。 | Luis A. Quinones Carlos E. Irarrázabal Claudio R. Rojas Cristian E. Orellana Cristian Acevedo Christian Huidobro Nelson E. Varela Dante D. Cáiceres | 2006 | Asian Journal of Andrology2006，8，3： | 6 |
| 9 | 帕博利珠单抗联合以铂类为基础的化疗治疗非小细胞肺癌合并稳定性脑转移患者的结局:KEYNOTE-021、-189和-407研究的汇总分析显示文摘背景与目的此项探索性分析回顾评价了晚期非小细胞肺癌(non-small cell lung cancer,NSCLC)患者的结局,旨在确定基线时合并脑转移是否会影响一线应用帕博利珠单抗联合化疗(pembrolizumab plus chemotherapy,PC)比对单用化疗的疗效。患者和方法对KEYNOTE-021队列G(非鳞癌)、KEYNOTE-189(非鳞癌)和KEYNOTE-407(鳞癌)三项研究晚期NSCLC患者的数据进行汇总分析。患者接受含铂两药化疗和/或35个周期帕博利珠单抗治疗(每3周200 mg)。所有研究均纳入了经治或初治的稳定性脑转移患者(KEYNOTE-189与KEYNOTE-407研究纳入初治脑转移患者)。经治的脑转移患者已处于病情稳定的状态≥2周(KEYNOTE-021队列G患者≥4周),无新发或脑转移病灶扩大的证据且入组前至少3天以上未使用激素。初治的无症状脑转移患者需定期接受脑部影像学检查。结果共纳入1298例患者,其中171例有基线脑转移,1127例无脑转移。两组的中位随访时间(范围)在数据截止时分别为10.9(0.1-35.1)个月和11.0(0.1-34.9)个月。合并脑转移和无脑转移患者的总生存期[0.48(95%CI:0.32-0.70)和0.63(95%CI:0.53-0.75)]和无进展生存期[0.44(95%CI:0.31-0.62)和0.55(95%CI:0.48-0.63)]的风险比(PC/化疗)相似。合并脑转移的患者中,PC组和单用化疗组患者的中位总生存期分别为18.8个月和7.6个月,中位无进展生存期分别为6.9个月和4.1个月。无论是否合并脑转移,PC组患者的客观缓解率都高于单用化疗组,且缓解持续时间有显著延长。合并脑转移的患者中,PC组与单用化疗组的治疗相关不良事件发生率分别为88.2%和82.8%;而无脑转移的患者中,两组治疗相关不良事件的发生率分别为94.5%和90.6%。结论无论是否合并脑转移,与单用化疗相比,帕博利珠单抗联合以铂类为基础的组织学特异性化疗可改善所有PD-L1亚组的临床结局,其中包括PD-L1肿瘤比例评分<1%的患者,并且在晚期NSCLC患者中安全性良好。该方案是晚期NSCLC初治患者的标准方案,并可用于合并稳定性脑转移的患者。 | 周清(翻译校对) Steven F Powell Delvys Rodríguez-Abreu Corey J Langer Ali Tafreshi Luis Paz-Ares Hans-Georg Kopp Jeronimo Rodríguez-Cid Dariusz M Kowalski Ying Cheng Takayasu Kurata Mark M Awad Jinaxin Lin Bin Zhao M Catherine Pietanza Bilal Piperdi Marina C Garassino | 2022 | 中国肺癌杂志2022，25，1： | 6 |
| 10 | P2Y12受体抑制剂联合质子泵抑制剂对急性冠脉综合征患者缺血事件影响的临床分析显示文摘目的本研究旨在分析P2Y12受体抑制剂联合质子泵抑制剂(PPI)治疗对经皮冠状动脉介入(PCI)术后的急性冠脉综合征患者缺血事件的影响。方法基于国际多中心回顾性注册登记研究,纳入2003至2014年因急性冠脉综合征人院行PCI术的患者,分为PPI组及非PPI组并随访1年,主要临床终点为全因死亡/再发心肌梗死的复合终点。根据P2Y12受体抑制剂种类,将入组患者分为氯吡格雷组及替格瑞洛组,并比较不同药物与PPI联用发生临床终点事件的风险。结果研究入选9429例患者,PPI组占54.8%,具有更多高危因素。Cox回归结果提示PPI组较非PPI组全因死亡/再发心肌梗死复合事件的发生差异无统计学意义(HR1.00,95%CI 0.86—1.18)。根据P2Y12抑制剂种类不同分为氯吡格雷组和替格瑞洛组,不同P2Y12受体抑制剂联用PPI较未联用PPI患者的临床终点无差异,联用PPI的氯吡格雷组与替格瑞洛组的临床终点差异也无统计学意义。结论急性冠脉综合征患者PPI与P2Y12受体抑制剂联用不增加全因死亡和再发心肌梗死风险,尤其PPI联用氯吡格雷在患者的缺血事件上与替格瑞洛比较差异无统计学意义。 | 冯斯婷 严妍 范婧尧 王晓 郑文 聂绍平 Sergio Raposeiras-Roubin Emad Abu-Assi Jose P Simao Henriques Fabrizio D' Ascenzo Jorge Saucedo Jose R Conzalez-Juanatey Stephen B Wilton Wouter J Kikkert Ivan Nunez-Gil Albert Ariza-Sole Dimitrios Alexopoulos Christoph Liebetrau Tetsuma Kawaji Claudio Moretti Zenon Huczek Toshiharu Fujii Luis C Correia Masa-aki Kawashiri Sasko Kedev | 2016 | 中华医学杂志2016，96，33： | 6 |
| 11 | pRB expression in esophageal mucosa of individuals at high risk for squamous cell carcinoma of the esophagus显示文摘AIM: To investigate the pRb expression in a large group of patients with history of chronic exposure to the main risk factors for development of squamous cell carcinoma of the esophagus. METHODS: One hundred and seventy asymptomatic individuals at high risk for esophageal squamous cell carcinoma (consumption of more than 80 g of ethanol and 10 cigarettes/d for at least 10 years) underwent upper gastrointestinal endoscopy with biopsies of the esophageal mucosa. As a control group, specimens of esophageal mucosa obtained from 20 healthy subjects were also studied. Immunohistochemical assessment of the tissues was performed using a monoclonal antibody anti-pRB protein. RESULTS: Absence of the pRB staining, indicating loss of RB function, was observed in 33 (19.4%) of the individuals at risk for esophageal cancer, but in none of the healthy controls (P < 0.02). Loss of pRb expression increased in a stepwise fashion according to the severity of the histological findings (P < 0.005): normal mucosa (11/97 or 11.3%), chronic esophagitis (17/60 or 28.3%), low-grade dysplasia (3/10 or 30%), high-grade dysplasia 1/2 or 50%) and squamous cell carcinoma (1/1 or 100%). CONCLUSION: Our findings suggest that abnormal expression of the pRB protein may be implicated in the process of esophageal carcinogenesis. Additional studies are warranted to define the role of the pRBprotein as a biomarker for development of esophageal squamous cell carcinoma in individuals at high risk for this malignancy. | Simone S Contu Paulo C Contu Daniel C Damin Renato B Fagundes Fabiano Bevilacqua Aline S Rosa Joo C Prolla Luis F Moreira | 2007 | World Journal of Gastroenterology2007，13，11： | 5 |
| 12 | AMP-activated kinase in human spermatozoa: identification, intracellular localization, and key function in the reRulation of sperm motility显示文摘 | Violeta Calle-Guisado Ana Hurtado de Llera David Martin-Hidalgo Jose Mijares Maria C Gil Ignacio S Alvarez Maria J Bragado Luis J Garcia-Marin | 2017 | Asian Journal of Andrology2017，19，6： | 5 |
| 13 | Peripheral and mesenteric serum levels of CEA and cytokeratins,staging and histopathological variables in colorectal adenocarcinoma显示文摘瞄准:为了评估在外设和 mes 伤寒浆液之间存在的差别,与颜色在病人 carcinoembryonic 铺平抗原(CEA ) 和 cytokeratins 表面的腺癌。方法:有颜色的 138 个病人表面的腺癌在在 1993 年 12 月和 2000 年 3 月之间的医院 Sao Paulo (UNIFESP-EPM 的外科的肠胃病学的纪律) 经历了外科的人,回顾地被分析。CEA 和 cytokeratin (TPA-M ) 之间的差别在外部血(P) 并且在 mes 伤寒血(M) 的层次被学习。协会在外设和 mes 伤寒层次和阶段和组织病理学说的变量(细胞分化,宏观的外观,肿瘤尺寸和淋巴、静脉的侵略的存在的度) 之间被调查。结果:差别在标记层次的数字价值被观察:CEA (M)(39.10 mg/L +/- 121.19 mg/L ) 对 CEA (P)(38.5 mg/L +/- 122.55 mg/L ) , P <
0.05;TPA-M (M)(325.06 U/L +/- 527.29 U/L ) 对 TPA-M (P)(279.48 U/L +/- 455.81 U/L ) , P <
0.01。mes 伤寒 CEA 层次在更先进的肿瘤是更高的(P <
0.01 ) ,在生长损害(34.44 mg/L +/- 93.07 mg/L )(P <
0.01 ) 并且与静脉的侵略(48.41 mg/L +/- 129.86 mg/L )(P <
0.05 ) 。外部 CEA 与更先进的阶段是更高的(P <
0.01 ) 并且在有静脉的侵略的损害(53.23 mg/L +/- 158.57 mg/L )(P <
0.05 ) 。病人表明了有更多的 TPA-M 层次预付肿瘤的伤寒、外部的增加的 mes (P <
0.01 并且 P <
0.01 ) 并且在非溃烂的损害[530.45 U/L +/- 997.46 U/L (P <
0.05 ) 并且 457.95 U/L +/- 811.36 U/L (P <
0.01 )] 。结论:肿瘤标记 CEA 和 cytokeratins 的 mes 伤寒层次比在这些的外部层次渲染表面的腺癌病人高。这些生物学的肿瘤标记的高水平与癌的传播的一个先进状态被联系。 | Ivan Gregório Ivankovics Luis César Fernandes Sarhan Sydeney Saad Delcio Matos | 2008 | World Journal of Gastroenterology2008，14，43： | 4 |
| 14 | Anti-rods/rings autoantibody generation in hepatitis Cpatients during interferon-α/ribavirin therapy显示文摘Chronic inflammation associated with hepatitis C virus(HCV) infection can lead to disabling liver diseases with progression to liver cirrhosis and hepatocellular carcinoma. Despite the recent availability of more effective and less toxic therapeutic options, in most parts of the world the standard treatment consists of a weekly injection of pegylated interferon α(IFN-α) together with a daily dose of ribavirin. HCV patients frequently present circulating non-organ-specific autoantibodies demonstrating a variety of staining patterns in the indirect immunofluorescence assay for antinuclear antibodies(ANA). Between 20% to 40% of HCV patients treated with IFN-α and ribavirin develop autoantibodies showing a peculiar ANA pattern characterized as rods and rings(RR) structures. The aim of this article is to review the recent reports regarding RR structures and anti-rods/rings(antiRR) autoantibody production by HCV patients after IFN-α/ribavirin treatment. Anti-RR autoantibodies first appear around the sixth month of treatment and reach a plateau around the twelfth month. After treatment completion, anti-RR titers decrease/disappear in half the patients and remain steady in the other half. Some studies have observed a higher frequency of anti-RR antibodies in relapsers, i.e., patients in which circulating virus reappears after initially successful therapy. The main target of anti-RR autoantibodies in HCV patients is inosine-5'-monophosphate dehydrogenase 2(IMPDH2), the rate-limiting enzyme involved in the guanosine triphosphate biosynthesis pathway. Ribavirin is a direct IMPDH2 inhibitor and is able to induce the formation of RR structures in vitro and in vivo. In conclusion, these observations led to the hypothesis that anti-RR autoantibody production is a human model of immunologic tolerance breakdown that allows us to explore the humoral autoimmune response from the beginning of the putative triggering event: exposure to ribavirin and interferon. | Gerson Dierley Keppeke S John Calise Edward KL Chan Luis Eduardo C Andrade | 2016 | World Journal of Gastroenterology2016，22，6： | 4 |
| 15 | Zn-Mg and Zn-Cu alloys for stenting applications:From nanoscale mechanical characterization to in vitro degradation and biocompatibility显示文摘In the recent decades,zinc(Zn)and its alloys have been drawing attention as promising candidates for bioresorbable cardiovascular stents due to its degradation rate more suitable than magnesium(Mg)and iron(Fe)alloys.However,its mechanical properties need to be improved in order to meet the criteria for vascular stents.This work investigates the mechanical properties,biodegradability and biocompatibility of Zn-Mg and Zn-Cu alloys in order to determine a proper alloy composition for optimal stent performance.Nanoindentation measurements are performed to characterize the mechanical properties at the nanoscale as a function of the Zn microstructure variations induced by alloying.The biodegradation mechanisms are discussed and correlated to microstructure,mechanical performance and bacterial/cell response.Addition of Mg or Cu alloying elements refined the microstructure of Zn and enhanced yield strength(YS)and ultimate tensile strength(UTS)proportional to the volume fraction of secondary phases.Zn-1Mg showed the higher YS and UTS and better performance in terms of degradation stability in Hanks’solution.Zn-Cu alloys presented an antibacterial effect for S.aureus controlled by diffusion mechanisms and by contact.Biocompatibility was dependent on the degradation rate and the nature of the corrosion products. | Claudia García-Mintegui Laura Catalina Córdoba Judit Buxadera-Palomero Andrea Marquina Emilio Jiménez-Piqué Maria-Pau Ginebra JoséLuis Cortina Marta Pegueroles | 2021 | Bioactive Materials2021，6，12： | 4 |
| 16 | Thiopurine-methyltransferase variants in inflammatory bowel disease:Prevalence and toxicity in Brazilian patients显示文摘AIM:To analyze the prevalence of thiopurine-methyltransferase(TPMT)genotypes and their associationwith drug toxicity in inflammatory bowel disease(IBD)patients from southeastern Brazil.METHODS:A total of 219 consecutive patients with IBD,of which 146 had Crohn’s disease and 73 had ulcerative colitis,regularly seen at the outpatient unit of the Division of Gastroenterology at the University Hospital Pedro Ernesto of the State University of Rio de Janeiro,a tertiary referral center,were enrolled in this study from February 2009 to January 2011.We analyzed the presence of major TPMT genetic variants(TPMT*2,*3A,*3C)in IBD patients by means of a specific allele and RFLP-PCR.Genomic DNA was isolated from peripheral blood leukocytes by proteinase-K/Sodium Dodecyl Sulfate digestion and phenol-chloroform extraction.TPMT*2(C238G),TPMT*3A(G460A/A719G),and TPMT*3C(A719G)genotypes were detected by real-time polymerase chain reaction followed by direct sequencing with specific primers.Clinical data were systematically recorded,and correlated with the genotype results.RESULTS:The distribution of the selected TPMT gene polymorphism TPMT*2(C238G),TPMT*3A(G460A/A719G),and TPMT*3C(A719G)genotypes was 3.6%,5.4%,and 7.7%of the patients,respectively.Among the side effects recorded from patients taking azathioprine,14 patients presented with pancreatitis and/or an elevation of pancreatic enzymes,while 6 patients had liver toxicity,and 2 patients exhibited myelosuppression/neutropenia.TPMT polymorphisms were detected in 37/219 patients(8 heterozygous for*2,11 heterozygous for*3A,and 18 heterozygous for*3C).No homozygotic polymorphisms were found.Despite the prevalence of the TPMT*3C genotype,no differences among the genotype frequencies were significant.Although no association was detected regarding myelotoxicity or hepatotoxicity,a trend towards the elevation of pancreatic enzymes was observed for TPMT*2 and TPMT*3C genotypes.CONCLUSION:The prevalence of TPMT genotypes was high among Brazilian patients.Variants genes*2and*3C may be associated with azathioprine pancreatic toxicity in a IBD southeastern Brazilian population. | Ana Teresa P Carvalho Barbara C Esberard Renata S B Fróes Davy C M Rapozo Ana B Grinman Tatiana A Simo Juliana C V C Santos Antonio José V Carneiro Luis Felipe Ribeiro-Pinto Heitor S P de Souza | 2014 | World Journal of Gastroenterology2014，20，12： | 3 |
| 17 | rate of adverse events of gastroduodenal snare polypectomy for non-flat polyp is low: A prospective and multicenter study显示文摘AIM To evaluate the rate of adverse events(AEs) during consecutive gastric and duodenal polypectomies in several Spanish centers. METHODS Polypectomies of protruded gastric or duodenal polyps ≥ 5 mm using hot snare were prospectively included. Prophylactic measures of hemorrhage were allowed in predefined cases. AEs were defined and graded according to the lexicon recommended by the American Society for Gastrointestinal Endoscopy. Patients were followed for 48 h, one week and 1 mo after theprocedure. RESULTS308 patients were included and a single polypectomy was performed in 205. Only 36(11.7%) were on prior anticoagulant therapy. Mean polyp size was 15 ± 8.9 mm(5-60) and in 294 cases(95.4%) were located in the stomach. Hemorrhage prophylaxis was performed in 219(71.1%) patients. Nine patients presented AEs(2.9%), and 6 of them were bleeding(n = 6, 1.9%)(in 5 out of 6 AE, different types of endoscopic treatment were performed). Other 24 hemorrhagic episodes could be managed without any change in the outcome of the endoscopy and, consequently, were considered incidents. We did not find any independent risk factor of bleeding.CONCLUSION Gastroduodenal polypectomy using prophylactic measures has a rate of AEs small enough to consider this procedure a safe and effective method for polyp resection independently of the polyp size and location. | Henry Córdova Lidia Argüello Carme Loras Antonio Naranjo Rodríguez Faust Riu Pons Joan B Gornals David Nicolás-Pérez Xavier Andújar Murcia Luis Hernández Santos Santolaria Carles Leal Carles Pons Enrique Pérez-Cuadrado-Robles Orlando García-Bosch Michel Papo Berger José Luis Ulla Rocha Cristina Sánchez-Montes Gloria Fernández-Esparrach | 2017 | World Journal of Gastroenterology2017，23，47： | 3 |
| 18 | Potential role of Limosilactobacillus fermentum as a probiotic with anti-diabetic properties: A review显示文摘Oxidative stress,inflammation,and gut microbiota impairments have been implicated in the development and maintenance of diabetes mellitus.Strategies capable of recovering the community of commensal gut microbiota and controlling diabetes mellitus have increased in recent years.Some lactobacilli strains have an antioxidant and anti-inflammatory system capable of protecting against oxidative stress,inflammation,and diabetes mellitus.Experimental studies and some clinical trials have demonstrated that Limosilactobacillus fermentum strains can beneficially modulate the host antioxidant and anti-inflammatory system,resulting in the amelioration of glucose homeostasis in diabetic conditions.This review presents and discusses the currently available studies on the identification of Limosilactobacillus fermentum strains with anti-diabetic properties,their sources,range of dosage,and the intervention time in experiments with animals and clinical trials.This review strives to serve as a relevant and well-cataloged reference of Limosilactobacillus fermentum strains capable of inducing anti-diabetic effects and promoting health benefits. | Diego Cabral Lacerda Paulo César Trindade da Costa Paula Brielle Pontes Lucas Alves Carneiro dos Santos JoséPatrocínio Ribeiro Cruz Neto Cristiane Cosmo Silva Luis Vanessa Polyana de Sousa Brito JoséLuiz de Brito Alves | 2022 | World Journal of Diabetes2022，13，9： | 3 |
| 19 | Sex-specific effects of Eugenia punicifolia extract on gastric ulcer healing in rats显示文摘AIM To evaluate the sex-specific effects of a hydroalcoholic extract from Eugenia punicifolia(HEEP) leaves on gastric ulcer healing.METHODS In this rat study involving males, intact(cycling) females, and ovariectomized females, gastric ulcers were induced using acetic acid. A vehicle, lansoprazole, or HEEP was administered for 14 d after ulcer induction. Body weight was monitored throughout the treatment period. At the end of treatment, the rats were euthanized and the following in vivo and in vitro investigations were performed: macroscopic examination of the lesion area and organ weights, biochemical analysis, zymography, and evaluation of protein expression levels. Additionally, the concentration-dependent effect of HEEP was evaluated in terms of subacute toxicity and cytotoxicity.RESULTS Compared to the vehicle, HEEP demonstrated a great healing capacity by substantially reducing the ulcerative lesion area in males(52.44%), intact females(85.22%), and ovariectomized females(65.47%), confirming that HEEP accelerates the healing of acetic acidinduced gastric lesions and suggesting that this effect is modulated by female sex hormones. The antiulcer effect of HEEP was mediated by prostaglandin E2 only in male rats. Overall, the beneficial effect of HEEP was the highest in intact females. Notably, HEEP promoted the expression of vascular endothelial growth factor(intact vs ovariectomized females) and decreased the expression of Caspase-8 and Bcl-2(intact female vs male or ovariectomized female). Additionally, HEEP enhanced fibroblast proliferation and migration into a wounded area in vitro, confirming its healing effect. Finally, no sign of subacute toxicity or cytotoxicity of HEEP was observed.CONCLUSION In gastric ulcers, HEEP-induced healing(modulated by female sex hormones; in males, mediated by prostaglandin) involves extracellular matrix remodeling, with gastric mucosa cell proliferation and migration. | Larissa Lucena Périco Vinícius Peixoto Rodrigues Rie Ohara Gabriela Bueno Vania Vasti Alfieri Nunes Raquel Cássia dos Santos Ana Carolina Lima Camargo Luis Antuio Justulin Joior Sérgio Faloni de Andrade Viviane Miranda Bispo Steimbach Luísa Mota da Silva Lúcia Regina Machado da Rocha Wagner Vilegas Catarina dos Santos Clélia Akiko Hiruma-Lima | 2018 | World Journal of Gastroenterology2018，24，38： | 3 |
| 20 | Diagnostic value of drain amylase for detecting intrathoracic leakage after esophagectomy显示文摘AIM:To investigate the value of elevated drain amylase concentrations for detecting anastomotic leakage(AL) after minimally invasive Ivor-Lewis esophagectomy(MIILE).METHODS:This was a retrospective analysis of prospectively collected data in two hospitals in the Netherlands. Consecutive patients undergoing MI-ILE were included. A Jackson-Pratt drain next to the dorsal side of the anastomosis and bilateral chest drains were placed at the end of the thoracoscopic procedure. Amylase levels in drain fluid were determined in all patients during at least the first four postoperative days. Contrast computed tomography scans and/or endoscopic imaging were performed in cases of a clinically suspected AL. Anastomotic leakage was defined as any sign of leakage of the esophago-gastric anastomosis on endoscopy,re-operation,radiographic investigations,post mortal examination or when gastro-intestinal contents were found in drain fluid. Receiver operator characteristic curves were used to determine the cut-off values. Sensitivity,specificity,positive predictive value,negative predictive value,risk ratio and overall test accuracy were calculated for elevated drain amylase concentrations.RESULTS:A t o t a l o f 8 9 p a t ie n t s w e re in c lu d e d between March 2013 and August 2014. No differences in group characteristics were observed between patients with and without AL,except for age. Patients with AL were older than were patients without AL(P = 0.01). One patient(1.1%) without AL died within 30 d after surgery due to pneumonia and acute respiratory distress syndrome. Anastomotic leakage that required any intervention occurred in 15 patients(16.9%). Patients with proven anastomotic leakage had higher drain amylase levels than patients without anastomotic leakage [median 384 IU/L(IQR 34-6263) vs median 37 IU/L(IQR 26-66),P = 0.003]. Optimal cut-off values on postoperative days 1,2,and 3 were 350 IU/L,200 IU/L and 160 IU/L,respectively. An elevated amylase level was found in 9 of the 15 patients with AL. Five of these 9 patients had early elevations of their amylase levels,with a median of 2 d(IQR 2-5) before signs and symptoms occurred.CONCLUSION:Measurement of drain amylase levels is an inexpensive and easy tool that may be used to screen for anastomotic leakage soon after MI-ILE. However,clinical validation of this marker is necessary. | Gijs HK Berkelmans Ewout A Kouwenhoven Boudewijn JJ Smeets Teus J Weijs Luis C Silva Corten Marc J van Det Grard AP Nieuwenhuijzen Misha DP Luyer | 2015 | World Journal of Gastroenterology2015，21，30： | 3 |
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