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| 1 | Antimicrobial susceptibility testing for Helicobacter pylori in times of increasing antibiotic resistance显示文摘The gram-negative bacterium Helicobacter pylori(H.pylori)causes chronic gastritis,gastric and duodenal ulcers,gastric cancer and mucosa-associated lymphoid tissue lymphoma.Treatment is recommended in all symptomatic patients.The current treatment options for H.pylori infection are outlined in this review in light of the recent challenges in eradication success,largely due to the rapid emergence of antibiotic resistant strains of H.pylori.Antibiotic resistance is a constantly evolving process and numerous studies have shown that the prevalence of H.pylori antibiotic resistance varies significantly from country to country,and even between regions within the same country.In addition,recent data has shown that previous antibiotic use is associated with harbouring antibiotic resistant H.pylori.Local surveillance of antibiotic resistance is warranted to guide clinicians in their choice of therapy.Antimicrobial resistance is assessed by H.pylori culture and antimicrobial susceptibility testing.Recently developed molecular tests offer an attractive alternative to culture and allow for the rapid molecular genetic identification of H.pylori and resistance-associated mutations directly from biopsy samples or bacterial culture material.Accumulating evidence indicates that surveillance of antimicrobial resistance by susceptibility testing is feasible and necessary to inform clinicians in their choice of therapy for management of H.pylori infection. | Sinéad M Smith Colm O’Morain Deirdre McNamara | 2014 | World Journal of Gastroenterology2014，20，29： | 40 |
| 2 | Role of Toll-like receptors in Helicobacter pylori infection and immunity显示文摘The gram-negative bacterium Helicobacter pylori(H. pylori) infects the stomachs of approximately half of the world's population. Although infection induces an immune response that contributes to chronic gastric inflammation, the response is not sufficient to eliminate the bacterium. H. pylori infection causes peptic ulcers, gastric cancer and mucosa-associated lymphoid tissue lymphoma. Disease outcome is linked to the severity of the host inflammatory response. Gastric epithelial cells represent the first line of innate immune defence against H. pylori, and respond to infection by initiating numerous cell signalling cascades, resulting in cytokine induction and the subsequent recruitment of inflamma-tory cells to the gastric mucosa. Pathogen recognition receptors of the toll-like receptor(TLR) family mediate many of these cell signalling events. This review dis-cusses recent findings on the role of various TLRs in the recognition of H. pylori in distinct cell types, describes the TLRs responsible for the recognition of individual H. pylori components and outlines the influence of innate immune activation on the subsequent development of the adaptive immune response. The mechanistic iden-tification of host mediators of H. pylori-induced patho-genesis has the potential to reveal drug targets and opportunities for therapeutic intervention or prevention of H. pylori-associated disease by means of vaccines or immunomodulatory therapy. | Sinéad M Smith | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，3： | 11 |
| 3 | 电动牙刷与手动牙刷对口腔卫生的效果比较显示文摘目的对电动牙刷和手动牙刷在去除菌斑、维护牙龈健康、对色素和牙结石的作用、可靠性、不良作用和成本等进行比较.方法计算机检索Cochrane口腔健康协作组临床试验资料库(截至2004年6月17日)、Cochran临床对照试验中心资料库(Cochrane图书馆2004第2期)、MEDLINE(1966~2004)、EMBASE(1980~2004第2周)和CINAHL(1982~2004第2周),并与制造商联系以获取更多资料.根据下列标准纳入随机对照试验:随机分配研究对象;参加者为手运动无障碍的普通人群;干预措施为无监督的手动或电动牙刷刷牙,至少4周;主要结局指标为试验期间菌斑和牙龈炎的变化.由6个作者独立评价并纳入研究资料.用随机效应模型进行Meta分析,用标准化均数差(SMD)及其95%CI测量效果.检查可能的异质性来源,并针对研究质量和发表偏倚进行敏感性分析.为便于讨论,将SMD转换为百分率.结果对包含3 855例研究对象的42个试验进行系统评价,结果显示,旋转振动型电动牙刷去除菌斑和减低牙龈炎的效果在短期内明显优于手动牙刷,并在3个月以上的研究中显示降低了牙龈炎指数.在1~3个月的研究中,菌斑SMD为-0.43 [95%CI (-0.72, 0.14)],牙龈炎SMD为-0.62 [95%CI (-0.90, 0.34)],Quigley Hein菌斑指数降低11%,Loe and Silness龈炎指数降低6%.在3个月以上的研究中,菌斑指数SMD为-1.29 [95%CI (-2.67, 0.08)], 龈炎指数为-0.51 [95%CI (-1.76, 0.25)],Ainamo Bay探诊出血指数降低17%.短期研究之间有异质性,敏感性分析显示当选择高质量的研究时结果是肯定的,没有证据表明有发表偏倚.采取其他设计的电动牙刷并不比手动牙刷更优.对成本、可靠性和不良作用的报道不一致,已报道的不良作用都是局限的、暂时的.结论旋转振动型电动牙刷去除牙菌斑、减少牙龈炎的效果优于手动牙刷.遵守方法学指南和更标准化的设计有益于将来的研究和Meta分析. | Robinson PG Deacon SA Deery C Heanue M Walmsley AD Worthington HV Glenny AM Shaw WC 陈娥 史宗道 | 2005 | 中国循证医学杂志2005，5，11： | 8 |
| 4 | Molecular detection of Helicobacter pylori antibiotic resistance in stool vs biopsy samples显示文摘AIM To compare(1) demographics in urea breath test(UBT) vs endoscopy patients; and(2) the molecular detection of antibiotic resistance in stool vs biopsy samples.METHODS Six hundred and sixteen adult patients undergoing endoscopy or a UBT were prospectively recruited to the study. The Geno Type Helico DR assay was used to detect Helicobacter pylori(H. pylori) and antibiotic resistance using biopsy and/or stool samples from CLOpositive endoscopy patients and stool samples from UBT-positive patients. RESULTS Infection rates were significantly higher in patients referred for a UBT than endoscopy(overall rates: 33% vs 19%; treatment-na?ve patients: 33% vs 14.7%, respectively). H. pylori-infected UBT patients were younger than H. pylori-infected endoscopy patients(41.4 vs 48.4 years, respectively, P < 0.005), with a higher percentage of H. pylori-infected males in the endoscopy-compared to the UBT-cohort(52.6% vs 33.3%, P = 0.03). The Geno Type Helico DR assay was more accurate at detecting H. pylori infection using biopsy samples than stool samples [98.2%(n = 54/55) vs 80.3%(n =53/66), P < 0.005]. Subset analysis using stool and biopsy samples from CLO-positive endoscopy patients revealed a higher detection rate ofresistance-associated mutations using stool samples compared to biopsies. The concordance rates between stool and biopsy samples for the detection of H. pylori DNA, clarithromycin and fluoroquinolone resistance were just 85%, 53% and 35%, respectively. CONCLUSION Differences between endoscopy and UBT patients provide a rationale for non-invasive detection of H. pylori antibiotic resistance. However, the Geno Type Helico DR assay is an unsuitable approach. | Denise E Brennan Joseph Omorogbe Mary Hussey Donal Tighe Grainne Holleran Colm O'Morain Sinéad M Smith Deirdre McNamara | 2016 | World Journal of Gastroenterology2016，22，41： | 6 |
| 5 | Irinotecan combined with fluorouracil compared with fluorouracil alone as first-line treatment for metastatic colorectal cancer: a multicentre randomised trial显示文摘 | JY Douillard D Cunningham AD Roth M Navarro RD James P Karasek P Jandik T Iveson J Carmichael M Alakl G Gruia L Awad P Rougier | 2000 | The Lancet2000，，9209： | 4 |
| 6 | Can bacterial virulence factors predict antibiotic resistant Helicobacter pylori infection?显示文摘AIM To evaluate the association between virulence factor status and antibiotic resistance in Helicobacter pylori(H. pylori)-infected patients in Ireland. METHODS DNA was extracted from antral and corpus biopsies obtained from 165 H. pylori-infected patients. Genotyping for clarithromycin and fluoroquinolone-mediating mutations was performed using the Genotype Helico DR assay. cag A and vac A genotypes were investigated using PCR. RESULTS Primary, secondary and overall resistance rates for clarithromycin were 50.5%(n = 53/105), 78.3%(n = 47/60) and 60.6%(n = 100/165), respectively. Primary, secondary and overall resistance rates for fluoroquinolones were 15.2%(n = 16/105) and 28.3%(n = 17/60) and 20%(n = 33/165), respectively. Resistance to both antibiotics was 12.4%(n = 13/105) in treatment-na?ve patients, 25%(n = 15/60) in those previously treated and 17%(n = 28/165) overall. A cag A-positive genotype was detected in 22.4%(n = 37/165) of patient samples. The dominant vac A genotype was S1/M2 at 44.8%(n = 74/165), followed by S2/M2 at 26.7%(n = 44/165), S1/M1 at 23.6%(n = 39/165) and S2/M1 at 4.8%(n = 8/165). Primary clarithromycin resistance was significantly lower in cag A-positive strains than in cag A-negative strains [32%(n = 8/25) vs 56.3%(n = 45/80); P = 0.03]. Similarly, in patients infected with more virulent H. pylori strains bearing the vac A s1 genotype, primary clarithromycin resistance was significantly lower than in those infected with less virulent strains bearing the vac A s2 genotype, [41%(n = 32/78) vs 77.8%(n = 21/27); P = 0.0001]. No statistically significant association was found between primary fluoroquinolone resistance and virulence factor status.CONCLUSION Genotypic H. pylori clarithromycin resistance is high and cag A-negative strains are dominant in our population. Less virulent(cag A-negative and vac A S2-containing) strains of H. pylori are associated with primary clarithromycin resistance. | Denise E Brennan Colin Dowd Colm O'Morain Deirdre McNamara Sinéad M Smith | 2018 | World Journal of Gastroenterology2018，24，9： | 4 |
| 7 | Recent advances in metastable alloys for hydrogen storage:a review显示文摘Development of new materials with high hydrogen storage capacity and reversible hydrogen sorp-tion performances under mild conditions has very high value in both fundamental and application aspects.In the past years,some new systems with metastable structures,such as ultra-fine nanocrystalline alloys,amorphous alloys,nanoglass alloys,immiscible alloys,high-entropy alloys,have been abundantly studied as hydrogen storage mate-rials.Many new hydrogen storage properties either from the kinetics or thermodynamics aspects have been reported.In this review,recent advances of studies on metastable alloys for hydrogen storage applications have been comprehensively reviewed.The materials preparation methods to synthesize metastable hydrogen storage alloys are firstly reviewed.Afterwards,hydrogen storage prop-erties of the metastable alloys are summarized and dis-cussed,focusing on the unique kinetics and thermodynamics properties by forming of such unique metastable structures.For examples,superior hydrogena-tion kinetics and higher hydrogen storage capacity have been achieved in Mg-based amorphous and nanoglass alloys.Destabilized thermodynamics properties can be obtained in the immiscible Mg-Mn and Mg-Zr alloys.In addition to highlighting the recent achievements of metastable alloys in the field of hydrogen storage,the remaining challenges and trends of the emerging research are also discussed. | Huai-Jun Lin Yan-Shan Lu Liu-Ting Zhang Hai-Zhen Liu Kaveh Edalati Adám Révész | 2022 | Rare Metals2022，41，6： | 4 |
| 8 | 造血微环境决定脐血造血干/祖细胞的早期分裂行为显示文摘目的 在特定生长因子的培养体系中 ,观察模拟造血微环境及粘附因素对人类脐血造血干 祖细胞早期分裂行为的影响。方法 ①应用流式细胞仪 (FACS)分选CD3 4+CD3 8- 细胞 ;②细胞培养体系中应用干细胞支持性基质AFT0 2 4及单一粘附因素纤维结合素 (Fn) ,并观察其对细胞早期分裂行为的影响。结果 ①在联合生长因子的条件下 ,人类脐血CD3 4+CD3 8- 细胞早期分裂呈现固定比例的静止、慢分裂、快分裂以及不对称分裂状态 ;②未观察到单一粘附因素Fn对其早期分裂行为的影响 ;③干细胞支持性基质AFT0 2 4所模拟的体外造血微环境可促使脐血造血干 祖细胞广泛增殖并更多地进行不对称分裂。结论 ①CD3 4+CD3 8- 细胞群体具有异质性 ,由具有不同增殖行为的亚群组成 ,在体外培养早期存在不对称分裂 ;②体外模拟的骨髓微环境AFT0 2 4基质滋养层较细胞因子及单一粘附因素能够更好地支持造血干 | 刘代红 M Punzel AD Ho | 2002 | 中华血液学杂志2002，23，10： | 4 |
| 9 | Ethanol metabolism and its effects on the intestinal epithelial barrier显示文摘 | Elhaseen E Elamin Ad A Masclee Jan Dekker Daisy M Jonkers | 2013 | Nutr Rev2013，，7： | 3 |
| 10 | How to manage inflammatory bowel disease during the COVID-19 pandemic:A guide for the practicing clinician显示文摘Managing inflammatory bowel disease(IBD)during the coronavirus disease 2019(COVID-19)pandemic has been a challenge faced by clinicians and their patients,especially concerning whether to proceed with biologics and immunosuppressive agents in the background of a global outbreak of a highly contagious new coronavirus(severe acute respiratory syndrome coronavirus 2,SARS-CoV-2).The knowledge about the impact of this virus on patients with IBD,although it is still scarce,is rapidly evolving.In particular,concerns surrounding medications’impact for IBD on the risk of acquiring SARS-CoV-2 infection or developing COVID-19,and potentially exacerbate viral replication and the COVID-19 course,are a current thinking of both practicing clinicians and providers caring for patients with IBD.Managing patients with IBD infected with SARS-CoV-2 depends on both the clinical activity of the IBD and the occasional development and severity of COVID-19.In this review,we summarize the current data regarding gastrointestinal involvement by SARS-CoV-2 and pharmacologic and surgical management for IBD concerning this infection,and the COVID-19 impact on both the patient's psychological functioning and endoscopy services,and we concisely summarize the telemedicine roles during the COVID-19 pandemic. | Júlio Maria Fonseca Chebli Natália Sousa Freitas Queiroz Adérson Omar Mourão Cintra Damião Liliana Andrade Chebli Márcia Henriques de Magalhães Costa Rogério Serafim Parra | 2021 | World Journal of Gastroenterology2021，27，11： | 2 |
| 11 | Restoration of tumor specific human leukocyte antigens class Ⅰ -restricted cytotoxicity by dendritic cell stimulation of tumor infiltrating lymphocytes in patients with advanced ovarian cancer 显示文摘 | Santin AD Bellone S Pahnieri M | 2004 | Int J Gynecol Cancer2004，14，1： | 1 |
| 12 | Perception of human ecology: Cross-cultural and gender comparisons显示文摘 | Eisler AD Eisler H Yoshida M | 2003 | Journal of Environmental Psychology2003，23，1： | 1 |
| 13 | The di aphragm : two muscles显示文摘 | Troyer AD Sampson M Sigrist S | 1981 | Science1981，，： | 1 |
| 14 | Nephron sparing surgery in incidental versus suspected renal cell carcinoma显示文摘 | Licht MR Novick AD Goormastic M | 1994 | J Urol1994，152，： | 1 |
| 15 | Paraoxonaase inhibits highdensity lipoprotein oxidation and preserves its functions显示文摘 | Aviram M Berliner JA Waston AD | 1998 | J Clin Invest1998，101，： | 1 |
| 16 | Circulating endothelial cell markers in peripheral vascular disease, relationship to the location and extent of atherosclerotic disease显示文摘 | Blann AD Seigneur M Steiner M | 1997 | Eur J Clin Invest1997，27，： | 1 |
| 17 | Pushing the limits of mercury sensors with gold nanorods 显示文摘 | Rex M Hemandez FE Campiglia AD | 2006 | Anal Chem2006，78，2： | 1 |
| 18 | Flav onoid andchlorogenic acid levels inapple fruit: char acterisation of variation显示文摘 | AW AD M A JAGER A D van WESTING L M | 2000 | Scientia Horticulturae2000，83，34： | 1 |
| 19 | Massage for low back p-ain : an updated systematic review within ihe framework of the Co-chrane Back Review Group显示文摘 | Furlan AD Imamura M Dryden T | 2009 | Spine2009，34，16： | 1 |
| 20 | Stroke subtype classification to mechanism-specific and undetermined categories by TOAST,ASCO,and Causative Classification System显示文摘 | Michael M Caroline AD Orla C | 2010 | Stroke2010，41，8： | 1 |
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