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| 1 | QUADAS评价:一种用于诊断性研究的质量评价工具(修订版)显示文摘背景 QUADAS是一种新近发展起来的诊断性研究的质量评价工具。虽然已有系统评价采用了QUADAS,但尚未得以正式确证。本研究的目的是评价QUADAS的有效性和实用性。方法3位评价者采用QUADAS独立评价30项研究的质量。比较每位评价者的评分与最终结论之间的意见一致度。这主要是通过比较所有QUADAS条目的总分和每个单项的得分来实现的。20位曾在其系统评价中使用过QUADAS的评价者就其使用经验完成一份简短的问卷。结果就所有条目而言,每位评价者的评分与最终结论之间的意见一致度分别达到了91%、90%和85%。就单项QUADAS条目而言,一致度在50%至100%之间,中位值是90%。与难以解释的试验结果和退出病例相关的条目,评分结果差异最大。有关QUADAS内容的反馈意见普遍较好,仅少数评价者提出了有关QUADAS涵盖面、使用便利性、评分说明的清晰度及有效性方面的问题。结论QUADAS内容本身无需作大的修改。评价过程的主要困难出现在难以解释的试验结果和退出病例这2个条目的评分上。对这些条目的评分指南提出了修改意见。评价者必需根据其系统评价制定相应的评分指南,并确保所有评价者都清楚如何评分。评价者还应考虑是否所有的QUADAS条目都与其系统评价相关,以及其他质量条目是否应作为其系统评价的评价部分。 | Penny F Whiting Marie E Weswood Anne WS Rutjes Johannes B Reitsma Patrick NM Bossuyt Jos Kleijnen 马章淳 钱楠 | 2007 | 中国循证医学杂志2007,7,7: | 64 |
| 2 | Incidence and mortality of primary liver cancer in England and Wales: Changing patterns and ethnic variations显示文摘AIM: To explore recent trends, modes of diagnosis, ethnic distribution and the mortality to incidence ratio of primary liver cancer by subtypes in England and Wales. METHODS: We obtained incidence(1979-2008) and mortality(1968-2008) data for primary liver cancer for England and Wales and calculated age-standardised incidence and mortality rates. Trends in age-standardised mortality(ASMR) and incidence(ASIR) rates and basis of diagnosis of primary liver cancer and subcategories: hepatocellular carcinoma, intrahepatic bile duct and unspecified liver tumours, were analysed over the study period. Changes in guidelines for the diagnosis of primary liver cancer(PLC) may impact changing trends in the rates that may be obtained. We thus explored changes in the mode of diagnosis as reported to cancer registries. Furthermore, we examined the distribution of these tumours by ethnicity. Most of the statistical manipulations of these data was carried out in Microsoft excel(Seattle, Washington, United Sttaes). Additional epidemiological statistics were done in Epi Info software(Atlanta, GA, United Sttaes). To define patterns of change over time, we evaluated trends in ASMR and ASIR of PLC and intrahepatic bile duct carcinoma(IHBD) using a least squares regression line fitted to the natural logarithm of the mortality and incidence rates. We estimated the patterns of survival over subsequent 5 and 10 years using complement of mortality to incidence ratio(1-MIR). RESULTS: Age-standardised mortality rate of primary liver cancer increased in both sexes: from 2.56 and 1.29/100000 in 1968 to 5.10 and 2.63/100000 in 2008 for men and women respectively. The use of histology for diagnostic confirmation of primary liver cancer increased from 35.7% of registered cases in 1993 to plateau at about 50% during 2005 to 2008. Reliance on cytology as a basis of diagnosis has maintained a downward trend throughout the study period. Although approximately 30% of the PLC registrations had information on ethnicity, there was a relatively higher registration of the major tumour subtypes in patients whose ethnic backgrounds were from high incident regions of the world. Survival from PLC is estimated to get poorer in 10 years(2018) relative to 2008, particularly as a result of IHBD. CONCLUSION: Incidence and mortality of PLC, and particularly IHBD, have continued to rise in England and Wales. Changes in the modes of diagnosis may be contributing. | Nimzing G Ladep Shahid A Khan Mary ME Crossey Andrew V Thillainayagam Simon D Taylor-Robinson Mireille B Toledano | 2014 | World Journal of Gastroenterology2014,20,6: | 15 |
| 3 | Rectal cancer: An evidence-based update for primary care providers显示文摘Rectal adenocarcinoma is an important cause of cancer-related deaths worldwide, and key anatomic differences between the rectum and the colon have significant implications for management of rectal cancer. Many advances have been made in the diagnosis and management of rectal cancer. These include clinical staging with imaging studies such as endorectal ultrasound and pelvic magnetic resonance imaging, operative approaches such as transanal endoscopic microsurgery and laparoscopic and robotic assisted proctectomy, as well as refined neoadjuvant and adjuvant therapies. For stage Ⅱ and Ⅲ rectal cancers, combined chemoradiotherapy offers the lowest rates of local and distant relapse, and is delivered neoadjuvantly to improve tolerability and optimize surgical outcomes, particularly when sphincter-sparing surgery is an endpoint. The goal in rectal cancer treatment is to optimize diseasefree and overall survival while minimizing the risk of local recurrence and toxicity from both radiation and systemic therapy. Optimal patient outcomes depend on multidisciplinary involvement for tailored therapy. The successful management of rectal cancer requires a multidisciplinary approach, with the involvement of enterostomal nurses, gastroenterologists, medical and radiation oncologists, radiologists, pathologists and surgeons. The identification of patients who are candidates for combined modality treatment is particularly useful to optimize outcomes. This article provides an overview of the diagnosis, staging and multimodal therapy of patients with rectal cancer for primary care providers. | Wolfgang B Gaertner Mary R Kwaan Robert D Madoff Genevieve B Melton | 2015 | World Journal of Gastroenterology2015,21,25: | 13 |
| 4 | Experimental small bowel preservation using Polysol: A new alternative to University of Wisconsin solution, Celsior and histidine-tryptophan-ketoglutarate solution?显示文摘AIM: To evaluate the potential of Polysol, a newly developed preservation solution, in cold storage of small bowel grafts, compared with the current standards, University of Wisconsin solution (UW), Celsior and histidine-tryptophan-ketoglutarate solution (HTK). METHODS: Male Wistar rats were used as donors. Small bowels were retrieved, flushed and then stored in the respective 4 solutions for 18 h at 4℃. Functional integrity of the grafts was evaluated by isolated reperfusion with oxygenated Krebs-Henseleit buffer at 37℃ for 30 min in all 4 groups. RESULTS: Polysol preservation exhibited the highest tissue ATP concentration and the lowest release of LDH. Malondialdehyde, an index for tissue lipid peroxidation, was also the lowest in Polysol. Tissue oxygen consumption was significantly higher in Polysol than in the others. Of interest, UW-storage promoted 10-fold higher apoptosis than in the others. Moreover, electron microscopy revealed that the mucosal villi/micro-villi formation and the cell organelles, including mitochondria, were both significantly better preserved in Polysol, while deleterious alterations were apparent in the others, most notably in UW. Although Celsior and HTK exhibited the better trend of results than UW in some parameters, but could not reach the over-all superiority to UW.CONCLUSION: Cold storage using Polysol resulted in significantly better integrity and function of small bowel grafts than UW. Hence, Polysol may be a novel alternative for the small bowel preservation. | Lai Wei Koichiro Hata Benedict Marie Doorschodt Reinhard Büttner Thomas Minor René H Tolba | 2007 | World Journal of Gastroenterology2007,13,27: | 9 |
| 5 | Genetic variants involved in gallstone formation and capsaicin metabolism,and the risk of gallbladder cancer in Chilean women显示文摘AIM:To determine the effects of genetic variants associated with gallstone formation and capsaicin (a pungent component of chili pepper) metabolism on the risk of gallbladder cancer (GBC).METHODS: A total of 57 patients with GBC, 119 patients with gallstones, and 70 controls were enrolled in this study. DNA was extracted from their blood or paraffi n block sample using standard commercial kits. The statuses of the genetic variants were assayed using Taqman SNP Genotyping Assays or Custom Taqman SNP Genotyping Assays.RESULTS:The non-ancestral T/T genotype of apolipoprotein B rs693 polymorphism was associated with a decreased risk of GBC (OR:0.14,95% CI:0.03-0.63). The T/T genotype of cholesteryl ester transfer protein (CETP) rs708272 polymorphism was associated with an increased risk of GBC (OR:5.04,95% CI:1.43-17.8).CONCLUSION: Genetic variants involved in gallstone formation such as the apolipoprotein B rs693 and CETP rs 708272 polymorphisms may be related to the risk of developing GBC in Chilean women. | Sergio Báez Yasuo Tsuchiya Alfonso Calvo Martha Pruyas Kazutoshi Nakamura Chikako Kiyohara Mari Oyama Masaharu Yamamoto | 2010 | World Journal of Gastroenterology2010,16,3: | 8 |
| 6 | Early plasmapheresis and rituximab for acute humoral rejection after ABO-compatible liver transplantation显示文摘Acute humoral rejection (AHR) is uncommon after ABO-compatible liver transplantation. Herein, we report two cases of AHR treated with plasmapheresis and rituximab in two ABO-compatible liver-transplant patients with preformed anti-human leukocyte antigen donor-specif ic antibodies. Patient 1 experienced a biopsy-proven AHR at day 10 post-transplant. She was treated by steroid pulses, and OKT3. Because of persisting signs of biopsy-proven AHR at day 26, she was treated by plasmapheresis and rituximab. Liver enzyme levels did not improve, and she died on day 41. Patient 2 experienced a biopsy-proven AHR on day 10 post-transplant. She was treated by steroid pulses, plasmapheresis, and rituximab. Liver enzymes returned to within normal range 18 d after diagnosis. Liver biopsies, at 3 and 9 mo post-transplant, showed complete resolution of AHR. We conclude that plasmapheresis should be started as soon as AHR is diagnosed, and be associated with a B-cell depleting agent. Rituximab may be considered as a first-line therapy. | Nassim Kamar Laurence Lavayssière Fabrice Muscari Janick Selves Céline Guilbeau-Frugier Isabelle Cardeau Laure Esposito Olivier Cointault Marie Béatrice Nogier Jean Marie Peron Philippe Otal Marylise Fort Lionel Rostaing | 2009 | World Journal of Gastroenterology2009,15,27: | 6 |
| 7 | Cyclin A2:At the crossroads of cell cycle and cell invasion显示文摘Cyclin A2 is an essential regulator of the cell division cycle through the activation of kinases that participate to the regulation of S phase as well as the mitotic entry. However,whereas its degradation by the proteasome in mid mitosis was thought to be essential for mitosis to proceed,recent observations show that a small fraction of cyclin A2 persists beyond metaphase and is degraded by autophagy. Its implication in the control of cytoskeletal dynamics and cell movement has unveiled its role in the modulation of Rho A activity. Since this GTPase is involved in both cell rounding early in mitosis and later,in the formation of the cleavage furrow,this suggests that cyclin A2 is a novel actor in cytokinesis. Taken together,these data point to this cyclin as a potential mediator of cell-niche interactions whose dysregulation could be taken as a hallmark of metastasis. | Abdelhalim Loukil Caroline T Cheung Nawal Bendris Bénédicte Lemmers Marion Peter Jean Marie Blanchard | 2015 | World Journal of Biological Chemistry2015,6,4: | 6 |
| 8 | Chemical conjugation of a novel antibody interleukin 2 immunoconjugate against c erbB 2 product显示文摘Objective To develop a new chemical method to produce a monoclonal antibody (MoAb) 520C9/recombinant human interleukin 2 (rhIL 2) conjugate Methods MoAb 520C9 reactive with the protooncogene c erbB 2 product P185 was chemically conjugated with rhIL 2 by using a simple two step method First, the rhIL 2 was activated by Sulfosuccinimidyl 4 [N maleimidomethyl] cyclohexane 1 carboxylate, a heterobifunctional linker, and N succinimidyl s acetylthioacetate was introduced onto 520C9 Then SATA on the 520C9 was reacted with the maleimide group on the activated rhIL 2 to generate 520C9 rhIL 2 immunoconjugate Results The immunoconjugate retained the antigen binding activity compared to the respective native antibody as determined by an indirect live cell binding assay The immunoconjugate also possessed IL 2 activity as measured by the standard CTLL 2 cells proliferation assay and the stimulation of human peripheral blood mononuclear cells (PBMCs) into lymphokine activated killer cells Conclusion Our method of conjugation of rhIL 2 to 520C9 preserves the binding activity of the antibody and the cytokine function of IL 2 This simple and efficient method of conjugation should be applicable to other types of MoAbs and recombinant | 李君 Sharon E Lee Marie Belciug David B Ring Cheuk S Kwok | 2000 | Chinese Medical Journal2000,,2: | 3 |
| 9 | Circulating MicroRNA Is a Biomarker of Pediatric Crohn Disease显示文摘 | Adam M Zahm Meena Thayu Nicholas J Hand Amber Horner Mary B Leonard Joshua R Friedman | 2011 | Journal of Pediatric Gastroenterology and Nutrition2011,,1: | 3 |
| 10 | Characterization of cytotoxic compound from mangrove derived fungi Irpex hydnoides VB4显示文摘Objective:To investigate the cytotoxic activity of endophytic fungi isolated from mangrove fungi.Methods:In the present study the DNA was isolated and the ITS region of 5.8s rRNA was amplified using specific primers ITS 1 and ITS4 and sequence was determined using automated sequencers.Blast search sequence similarity was found against the existing non redundant nucleotide sequence database thus,identified as Aspergilus flavus,Hyporcaea lixii,Aspergillus niger,Eutorium amstelodami,Irpex hydnoides and Neurospora crassa.Among the seven isolates, one fungi Irpex hydnoides was selected for further studies.The fungi were grown in sabouraud broth for five days and filtrate were separated and subjected to ethyl acetate for further studies. Results:Nearly half(49.25%) of the extracts showed activity(IC_(50) of 125 μ g/mL).These values were within the cutoff point of the National Cancer Institute criteria for cytotoxicity(IC_(50)<20 μ g/mL) in the screening of crude plant extracts.The GC MS analysis revealed that the active principals might be Tetradecane(6.26%) with the RT 8.606.Conclusions:It is clear from the present study that mangrove fungi with bioactive metabolites can be expected to provide high quality biological material for high throughout biochemical,anti cancer screening programmes.The results help us conclude that me potential of using metabolic engineering and post genomic approaches to isolate more novel bioactive compounds and to make their possible commercial application is not far off. | B Valentin Bhimba DA Agnel Defora Franco Geena Mary Jose Jibi Merin Mathew Elsa Lycias Joel | 2011 | Asian Pacific Journal of Tropical Biomedicine2011,1,3: | 3 |
| 11 | DNA vaccination of infants in the presence of maternal antibody: a measles model in the primate显示文摘 | Mary Premenko-Lanier Paul A Rota Gary Rhodes David Verhoeven Dan H Barouch Nicholas W Lerche Norman L Letvin William J Bellini Michael B McChesney | 2003 | Virology2003,,1: | 2 |
| 12 | Hepatoprotective potential of petroleum ether leaf extract of Crossandra infundibuliformis on CCl_4 induced liver toxicity in albino mice显示文摘Objective:To analyze the hepatoprotective effect of the Crossandra infundibuliformis.Methods: Hepatotoxicity was induced by carbon tetrachloride.Petroleum ether extract of dried leaves was administrated to mice for 7 days.The hepatoprotective effect of petroleum ether extract was evaluated by the assay of liver function biochemical parameters.Results:The result clearly indicates that petroleum ether extract showed significant hepatoprotection when compared with standard Silumarin.Conclusions:The petroleum ether extract of the leaves of Crossandra infundibuliformis possess significant acute hepatoprotective activity.Thus further investigation on this species would bring a promising drug for liver disorders. | G Madhumitha A Mary Saral B Senthilkumar A Sivaraj | 2010 | Asian Pacific Journal of Tropical Medicine2010,3,10: | 2 |
| 13 | Safety of Green Tea Extracts: A Systematic Review by the US Pharmacopeia显示文摘 | Sarma Dandapantula N Barrett Marilyn L Chavez Mary L Gardiner Paula Ko Richard Mahady Gail B Marles Robin J Pellicore Linda S Giancaspro Gabriel I Dog Tieraona Low | 2008 | Drug Safety2008,,6: | 2 |
| 14 | Role of proton pump inhibitors in the occurrence and the prognosis of spontaneous bacterial peritonitis in cirrhotic patients with ascites显示文摘 | Marie Vos Bénédicte Vroey Béatrice Garcia Garcia Clothilde Roy Fran?ois Kidd Jean Henrion Pierre Deltenre | 2013 | Liver Int2013,,9: | 2 |
| 15 | A prospective feasibility study of sub-millisievert abdominopelvic CT using iterative reconstruction in Crohn’s disease显示文摘 | Siobhan B O’Neill Patrick D Mc Laughlin Lee Crush Owen J O’Connor Sebastian R Mc Williams Orla Craig Anne Marie Mc Garrigle Fiona O’Neill Jackie Bye Max F. Ryan Fergus Shanahan Michael M Maher | 2013 | European Radiology2013,,: | 2 |
| 16 | Aggressive surgery for metastatic liver neuroendocrine tumors显示文摘 | Jeffrey A Norton Robert S Warren Mary G Kelly Marlene B Zuraek Robert T Jensen | 2003 | Surgery2003,,: | 2 |
| 17 | The regulation of chondrocyte function by proinflammatorymediators:prostaglandnis and nitric oxide显示文摘 | Berenbaum Francis M D | 2004 | Clini Orthop Relat Res2004,1,427: | 1 |
| 18 | Reduces oxidative pentose pathway flux in recombinant xylose-utilizing Saccharomyces cerevisiae strains improves the ethanol yield from xylose显示文摘 | Marie J Bjorn J Hahn-Hagedal B | 2002 | Appl Environ Microbiol2002,68,4: | 1 |
| 19 | Interactions between decomposition of plant residues and nitrogen cycling in soil 显示文摘 | Mary B Recous S Darwis D | 1996 | Plant Soil1996,181,: | 1 |
| 20 | A novel ligin on poplar trees with a reduced caffeicacid/5-hydroxyferulic acid O-methyl-transferase activity显示文摘 | Janvan D Marie B Emmanuelle C | 1995 | Plant Journal1995,8,6: | 1 |