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| 1 | TGF-β-induced epithelial to mesenchymal transition显示文摘在开发期间并且在不同形态基因的事件的上下文,上皮的房间经历对间充质的转变或 transdifferentiation (EMT ) 上皮的叫的一个过程。在这个过程,房间失去他们的上皮的特征,包括他们的极性和专业化房间房间接触,并且获得迁移的行为,甚至在遥远的地点,允许他们移动离开他们的上皮的房间社区并且集成到包围织物。EMT 在开发期间说明区别粘性并且被另一进程补充,打电话对上皮的转变间充质(相遇) 。当在开发期间是一个不可分的过程时, EMT 也在病理学的条件下面被概括,显著地在纤维变性并且在癌的侵略和转移。因此, EMT 在肿瘤前进被看作重要的步。发信号的 TGF- 尾被显示了在 EMT 起一个重要作用。事实上,在文化把 TGF- 尾加到上皮的房间是在各种各样的上皮的房间导致 EMT 的一个方便方法。尽管更不描绘的、上皮的粘性能被 TGF- 也调整,尾 - 联系了骨头形态基因的蛋白质(BMP ) ,和 BMP 被显示了导致 EMT 或相遇取决于发展上下文。在这评论,我们将响应 TGF- 尾讨论 EMT 的正式就职,并且集中于内在的发信号和抄写机制。 | Jian Xu Samy Lamouille Rik Derynck | 2009 | Cell Research2009,19,2: | 218 |
| 2 | Accurate definition and management of idiopathic sclerosing encapsulating peritonitis显示文摘AIM: To review the literature on idiopathic sclerosing encapsulating peritonitis(SEP), also known as abdominal cocoon syndrome. METHODS: The Pub Med, MEDLINE, Google Scholar, and Google databases were searched using specific key words to identify articles related to idiopathic SEP. These key words were 'sclerosing encapsulating peritonitis,' 'idiopathic sclerosing encapsulating peritonitis,' 'abdominal cocoon,' and 'abdominal cocoon syndrome.' The search included letters tothe editor, case reports, review articles, original articles, and meeting presentations published in the English-language literature from January 2000 to May 2014. Articles or abstracts containing adequate information about age, sex, symptom duration, initial diagnosis, radiological tools, and surgical approaches were included in the study. Papers with missing or inadequate data were excluded. RESULTS: The literature search yielded 73 articles on idiopathic(primary) SEP published in 23 countries. The four countries that published the greatest number of articles were India(n = 21), Turkey(n = 14), China(n = 8) and Nigeria(n = 3). The four countries that reported the greatest number of cases were China(n = 104; 53.88%), India(n = 35; 18.13%), Turkey(n = 17; 8.80%) and Nigeria(n = 5; 2.59%). The present study included 193 patients. Data on age could be obtained for 184 patients(range: 7-87 years; mean ± SD, 34.7 ± 19.2 years), but were unavailable for nine patients. Of the 184 patients, 122 were male and 62 were female; sex data could not be accessed in the remaining nine patients. Of the 149 patients whose preoperative diagnosis information could be obtained, 65(43.6%) underwent operations for abdominal cocoon, while the majority of the remaining patients underwent operations for a presumed diagnosis of intestinal obstruction and/or abdominal mass. Management information could be retrieved for 115 patients. Of these, 68 underwent excision + adhesiolysis(one laparoscopic); 24 underwent prophylactic appendectomy in addition to excision + adhesiolysis. Twenty patients underwent various resection and repair techniques along with excision + adhesiolysis. The remaining three patients were managed with antituberculosis therapy(n = 2) and immunosuppressive therapy(n = 1). CONCLUSION: Idiopathic SEP is a rare disorder characterized by frequently recurring bouts of intestinal obstruction. Surgical therapy is the gold standardmanagement strategy. | Sami Akbulut | 2015 | World Journal of Gastroenterology2015,21,2: | 29 |
| 3 | J波综合征专家上海共识:概念与认知的更新显示文摘序言
J波综合征(J wave syndromes,JW Ss),包括Brugada综合征(BrS)和早复极综合征(ERS)。有关Br S,在2000年和2004年分别举行了BrS的国际专家共识会议;有关ERS,直到2013年才在原发性遗传性心律失常专家共识里做出了针对ERS的指导意见。在2015年4月,心脏节律协会(HRS)、欧洲心脏节律协会(EHRA)和亚洲太平洋心脏节律协会(APHRS)的主要专家成员组成的工作组聚集在中国上海,审查了有关JWSs的新证据, | Charles Antzelevitch 严干新 Michael J.Ackerman Martin Borggrefe Domenico Corrado 郭继鸿(审核) Ihor Gussak Can Hasdemir Minoru Horie Heikki Huikuri 马长生 Hiroshi Morita Gi-Byoung Nam Frederic Sacher Wataru Shimizu Sami Viskin Arthur A.M.Wilde 刘霄燕(译) 揭起强(译) 吴林(审核) | 2016 | 临床心电学杂志2016,25,3: | 21 |
| 4 | Radical vs conservative surgery for hydatid liver cysts:Experience from single center显示文摘AIM:To compare the efficacy and safety of radical and conservative surgical interventions for liver hydatid disease.METHODS:The study comprised 59 patients in two groups who had undergone radical and conservative surgical procedures for liver hydatid disease in our department between 2004 and 2009. Preoperative diagnostic tools,medical treatments,demographic and clinical characteristics,postoperative follow-up,and recurrence were compared in both groups. RESULTS:This non-randomized retrospective studyincluded 59 patients who had undergone liver hydatid disease surgery. The radical technique was used in 18 patients (mean age:42.1 ± 13.5 years,seven male,11 female),and the conservative technique was used in 41 patients (mean age:43.5 ± 13.9 years,17 male,24 female). The follow-up period ranged from 3 to 58 mo. Although operative time was significantly shorter in the conservative group (P < 0.001),recurrence was significantly reduced in the radical group (P = 0.045). No statistically significant differences were found in terms of hospitalization duration,cyst count and size,location,postoperative complications,scolicidal solution usage,or follow-up duration between the two groups.CONCLUSION:The more effective method for pre-venting postoperative recurrence is radical surgery. En-doscopic retrograde cholangiopancreatography for bile leakage in the early postoperative period may decrease the requirement for repeat surgery. | Sami Akbulut Ayhan Senol Arsenal Sezgin Bahri Cakabay Mehmet Dursun Omer Satici | 2010 | World Journal of Gastroenterology2010,16,8: | 19 |
| 5 | challenges of advanced hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC) is an aggressive malignancy,resulting as the third cause of death by cancer each year. The management of patients with HCC is complex,as both the tumour stage and any underlying liver disease must be considered conjointly. Although surveillance by imaging,clinical and biochemical parameters is routinely performed,a lot of patients suffering from cirrhosis have an advanced stage HCC at the first diagnosis. Advanced stage HCC includes heterogeneous groups of patients with different clinical condition and radiological features and sorafenib is the only approved treatment according to Barcelona Clinic Liver Cancer. Since the introduction of sorafenib in clinical practice,several phase Ⅲ clinical trials have failed to demonstrate any superiority over sorafenib in the frontline setting. Locoregional therapies have also been tested as first line treatment,but their role in advanced HCC is still matter of debate. No single agent or combination therapies have been shown to impact outcomes after sorafenib failure. Therefore this review will focus on the range of experimental therapeutics for patients with advanced HCC and highlights the successes and failures of these treatments as well as areas for future development. Specifics such as dose limiting toxicity and safety profile in patients with liver dysfunction related to the underlying chronic liver disease should be considered when developing therapies in HCC. Finally,robust validated and reproducible surrogate end-points as well as predictive biomarkers should be defined in future randomized trials. | Stefano Colagrande Andrea L Inghilesi Sami Aburas Gian G Taliani Cosimo Nardi Fabio Marra | 2016 | World Journal of Gastroenterology2016,22,34: | 19 |
| 6 | Effect of autotransfusion system on tumor recurrence and survival in hepatocellular carcinoma patients显示文摘AIM:To investigate the therapeutic efficacy and safety of continuous autotransfusion system(CATS) during liver transplantation of hepatocellular carcinoma patients.METHODS:Eighty-three hepatocellular carcinoma(HCC) patients who underwent liver transplantation with intraoperative CATS(n = 24,CATS group) and without(n = 59,non-CATS group) between April 2006 and November 2011 at the Liver Transplant Institute of Inonu University were analyzed retrospectively.Postoperative HCC recurrence was monitored by measuring alpha-fetoprotein(AFP) levels at 3-mo intervals and performing imaging analysis by thoracoabdominal multidetector computed tomography at 6-month intervals.Inter-group differences in recurrence and correlations between demographic,clinical,and pathological data were assessed by ANOVA and χ 2 tests.Overall and disease-free survivals were calculated by the univariate Kaplan-Meier method.RESULTS:Of the 83 liver transplanted HCC patients,89.2% were male and the overall mean age was 51.3 ± 8.9 years(range:18-69 years).The CATS and nonCATS groups showed no statistically significant differences in age,sex ratio,body mass index,underlying disease,donor type,graft-to-recipient weight ratio,Child-Pugh and Model for End-Stage Liver Disease scores,number of tumors,tumor size,AFP level,Milan and University of California San Francisco selection criteria,tumor differentiation,macrovascular invasion,median hospital stay,recurrence rate,recurrence site,or mortality rate.The mean follow-up time of the nonCATS group was 17.9 ± 12.8 mo,during which systemic metastasis and/or locoregional recurrence developed in 25.4% of the patients.The mean follow-up time for the CATS group was 25.8 ± 15.1 mo,during which systemic metastasis and/or locoregional recurrence was detected in 29.2% of the patients.There was no significant difference between the CATS and non-CATS groups in recurrence rate or site.Additionally,no significant differences existed between the groups in overall or disease-free survival.CONCLUSION:CATS is a safe procedure and may decrease the risk of tumor recurrence in HCC patients. | Sami Akbulut Cuneyt Kayaalp Mehmet Yilmaz Volkan Ince Dincer Ozgor Koray Karabulut Cengiz Eris Huseyin Ilksen Toprak Cemalettin Aydin Sezai Yilmaz | 2013 | World Journal of Gastroenterology2013,19,10: | 17 |
| 7 | 道路公共交通效率的随机前沿分析方法显示文摘本文旨在测算18个城市共64个道路公共交通运营商的技术效率,并研究各因素对这些企业效率水平的影响程度.随机前沿分析(SFA)方法采用从2000年至2011年共计12年的样本数据.结果表明,营业利润、资本投入和企业规模都是影响技术效率水平的重要因素.计算得出的道路公共交通运营商的技术效率水平在0.46至0.95之间.投资较多的大规模运营商比小规模运营商技术效率更高,发达国家的运营商比发展中国家表现出更高的技术效率. | Sami Jarboui Pascal Forget Younes Boujelbene | 2013 | 交通运输系统工程与信息2013,13,5: | 15 |
| 8 | The wonders of BMP9:From mesenchymal stem cell differentiation,angiogenesis,neurogenesis,tumorigenesis,and metabolism to regenerative medicine显示文摘Although bone morphogenetic proteins(BMPs)initially showed effective induction of ectopic bone growth in muscle,it has since been determined that these proteins,as members of the TGF-b superfamily,play a diverse and critical array of biological roles.These roles include regulating skeletal and bone formation,angiogenesis,and development and homeostasis of multiple organ systems.Disruptions of the members of the TGF-b/BMP superfamily result in severe skeletal and extra-skeletal irregularities,suggesting high therapeutic potential from understanding this family of BMP proteins.Although it was once one of the least characterized BMPs,BMP9 has revealed itself to have the highest osteogenic potential across numerous experiments both in vitro and in vivo,with recent studies suggesting that the exceptional potency of BMP9 may result from unique signaling pathways that differentiate it from other BMPs.The effectiveness of BMP9 in inducing bone formation was recently revealed in promising experiments that demonstrated efficacy in the repair of critical sized cranial defects as well as compatibility with bone-inducing bio-implants,revealing the great translational promise of BMP9.Furthermore,emerging evidence indicates that,besides its osteogenic activity,BMP9 exerts a broad range of biological functions,including stem cell differentiation,angiogenesis,neurogenesis,tumorigenesis,and metabolism.This review aims to summarize our current understanding of BMP9 across biology and the body. | Sami Mostafa Mikhail Pakvasa Elam Coalson Allen Zhu Alex Alverdy Hector Castillo Jiaming Fan Alex Li Yixiao Feng Di Wu Elliott Bishop Scott Du Mia Spezia Alissa Li Ofir Hagag Alison Deng Winny Liu Mingyang Li Sherwin S·Ho Aravind Athiviraham Michael J·Lee Jennifer Moriatis Wolf Guillermo A·Ameer Hue H·Luu Rex C·Haydon Jason Strelzow Kelly Hynes Tong-Chuan He Russell R·Reid | 2019 | Genes & Diseases2019,6,3: | 15 |
| 9 | Altered Lignin Biosynthesis Improves Cellulosic Bioethanol Production in Transgenic Maize Plants Down-Regulated for Cinnamyl Alcohol Dehydrogenase显示文摘Cinnamyl 白酒脱氢酶(CAD ) 是涉及 monolignol 生合成的最后步的关键酶。木质素生产上的 CAD 下面规定的效果在玉米通过一条转基因的途径被调查。转基因的 CAD-RNAi 植物显示出在房间墙作文取决于分析织物和表演改变的酶的减小的不同的度。没有影响全部的木质素内容, CAD-RNAi 茎的细胞墙在 S-to-G 比率与细微减小包含木质素聚合物。另外,这些房间墙积累纤维素和 arabinoxylans 的高水平。相反, CAD-RNAi 中肋的房间墙在全部的木质素内容并且房间墙多糖介绍减小。,在 vitro degradability,试金显示出那到不同程度, CAD 活动的压抑导致的变化生产了中肋和比野类型的植物更可能减解的茎。在这块地里种的 CAD-RNAi 植物介绍了野类型的显型并且生产了干燥生物资源的更高的数量。有纤维质的 bioethanol 试金表明 CAD-RNAi 生物资源生产了乙醇的高水平与相比野类型,使 CAD 成为一个好目标两个都改进玉米 lignocellulosic 生物资源的营养、精力充沛的值。 | Silvia Fornale Montserrat Capellades Antonio Encina Kan Wang Sami Irara Catherine Lapierre Katia Ruel Jean-Paul Joseleaue Jordi Berenguer Pere Puigdomenech Joan Rigau David Caparros-Ruiz | 2012 | Molecular Plant2012,5,4: | 14 |
| 10 | Graft-versus-host disease after liver transplantation:A comprehensive literature review显示文摘AIM:To determine the factors affecting mortality in patients who developed graft-versus-host disease (GvH) after liver transplantation (LT) METHODS:We performed a review of studies of GvH following LT published in the English literature and accessed the PubMed, Medline, EBSCO, EMBASE, and Google Scholar databases Using relevant search phrases, 88 articles were identified. Of these, 61 articles containing most of the study parameters were considered eligible for the study. Risk factors were first examined using a univariate Kaplan-Meier model, and variables with a significant association (P < 0 05) were then subjected to multivariate analyses using a Cox proportional-hazards model RESULTS:The 61 articles reported 87 patients, 58 male and 29 female, mean age, 40.4 ± 15.5 years (range:8 mo to 74 years), who met the inclusion criteria for the present study. Deaths occurred in 59 (67.8%) patients, whereas 28 (32.2%) survived after a mean follow-up period of 280.8 ± 316.2 d (range:27-2285 d). Among the most frequent symptoms were rash (94.2%), fever (66.6%), diarrhea (54%), and pancytopenia (54%). Theaverage time period between LT and first symptom onset was 60.6 ± 190.1 d (range: 2-1865 d). The Kaplan-Meier analysis revealed that pancytopenia (42.8% vs 59.3%,P = 0.03), diarrhea (39.2%vs 61.0%,P = 0 04), age difference between the recipient and the donor (14.6 ± 3.1 yearsvs 22.6 ± 2.7 years,P < 0.0001), and time from first symptom occurrence to diagnosis or treatment (13.3 ± 2.6 mo vs 15.0 ± 2.3 mo, P < 0.0001) were significant factors affecting mortality, whereas age, sex, presence of rash and fever, use of immunosuppressive agents, acute rejection before GvH , etiological causes, time of onset, and donor type were not associated with mortality risk The Cox proportional-hazards model, determined that an age difference between the recipient and donor was an independent risk factor (P = 0 03; hazard ratio, 7.395, 95% confidence interval, 1.2-46.7). CONCLUSION:This study showed that an age difference between the recipient and donor is an independent risk factor for mortality in patients who develop GvH after LT. | Sami Akbulut Mehmet Yilmaz Sezai Yilmaz | 2012 | World Journal of Gastroenterology2012,18,37: | 14 |
| 11 | Neural EGF-like protein 1(NELL-1):Signaling crosstalk in mesenchymal stem cells and applications in regenerative medicine显示文摘Bone tissue regeneration holds the potential to solve both osteoporosis and large skeletal defects,two problems associated with significant morbidity.The differentiation of mesenchymal stem cells into the osteogenic lineage requires a specific microenvironment and certain osteogenic growth factors.Neural EGF Like-Like molecule 1(NELL-1)is a secreted glycoprotein that has proven,both in vitro and in vivo,to be a potent osteo-inductive factor.Furthermore,it has been shown to repress adipogenic differentiation and inflammation.NELL-1 can work synergistically with other osteogenic factors such as Bone Morphogenic Protein(BMP)2 and9,and has shown promise for use in tissue engineering and as a systemically administered drug for the treatment of osteoporosis.Here we provide a comprehensive up-to-date review on the molecular signaling cascade of NELL-1 in mesenchymal stem cells and potential applications in bone regenerative engineering. | Mikhail Pakvasa Alex Alverdy Sami Mostafa Eric Wang Lucy Fu Alexander Li Leonardo Oliveira Aravind Athiviraham Michael J.Lee Jennifer Moriatis Wolf Tong-Chuan He Guillermo A.Ameer Russell R.Reid | 2017 | Genes & Diseases2017,4,3: | 13 |
| 12 | Pneumatosis cystoides intestinalis:A single center experience显示文摘AIM:To share our experience of the management and outcomes of patients with pneumatosis cystoides intestinalis (PCI).METHODS:The charts of seven patients who underwent surgery for PCI between 2001 and 2009 were reviewed retrospectively.Clinical features,diagnoses and surgical interventions of patients with PCI are discussed.RESULTS:Seven patients with PCI (3 males,4 females;mean age,50 ± 16.1 years;range,29-74 years) were analyzed.In three of the patients,abdominal pain was the only complaint,whereas additional vomiting and/or constipation occurred in four.Leukocytosis was detected in four patients,whereas it was within normal limits in three.Subdiaphragmatic free air was observed radiologically in four patients but not in three.Six of the patients underwent an applied laparotomy,whereas one underwent an applied explorative laparoscopy.PCI localized to the small intestine only was detected in four patients,whereas it was localized to the small intestine and the colon in three.Three patients underwent a partial small intestine resection and four did not after PCI was diagnosed.Five patients were diagnosed with secondary PCI and two with primary PCI when the surgical findings and medical history were assessed together.Gastric atony developed in one case only,as a complication during a postoperative follow-up of 5-14 d.CONCLUSION:Although rare,PCI should be considered in the differential diagnosis of acute abdomen.Diagnostic laparoscopy and preoperative radiological tests,including computed tomography,play an important role in confirming the diagnosis. | Zulfu Arikanoglu Erhan Aygen Cemalettin Camci Sami Akbulut Murat Basbug Osman Dogru Ziya Cetinkaya Cuneyt Kirkil | 2012 | World Journal of Gastroenterology2012,18,5: | 13 |
| 13 | Predictors of mortality after transjugular portosystemic shunt显示文摘AIM:To investigate if echocardiographic and hemodynamic determinations obtained at the time of transjugular intrahepatic portosystemic shunt(TIPS)can provide prognostic information that will enhance risk stratification of patients.METHODS:We reviewed medical records of 467 patients who underwent TIPS between July 2003 and December 2011 at our institution.We recorded information regarding patient demographics,underlying liver disease,indication for TIPS,baseline laboratory values,hemodynamic determinations at the time of TIPS,and echocardiographic measurements both before and after TIPS.We recorded patient comorbidities that may affect hemodynamic and echocardiographic determinations.We also calculated Model for Endstage Liver Disease(MELD)score and Child Turcotte Pugh(CTP)class.The following pre-and post-TIPS echocardiographic determinations were recorded:Left ventricular ejection fraction,right ventricular(RV)systolic pressure,subjective RV dilation,and subjective RV function.We recorded the following hemodynamic measurements:Right atrial(RA)pressure before and after TIPS,inferior vena cava pressure before and after TIPS,free hepatic vein pressure,portal vein pressure before and after TIPS,and hepatic venous pressure gradient(HVPG).RESULTS:We reviewed 418 patients with portal hypertension undergoing TIPS.RA pressure increased by a mean ± SD of 4.8 ± 3.9 mmH g(P < 0.001),HVPG decreased by 6.8 ± 3.5 mmH g(P < 0.001).In multivariate linear regression analysis,a higher MELD score,lower platelet count,splenectomy and a higher portal vein pressure were independent predictors of higher RA pressure(R = 0.55).Three variables predicted 3-mo mortality after TIPS in a multivariate analysis:Age,MELD score,and CTP grade C.Change in the RA pressure after TIPS predicted long-term mortality(per 1 mm Hg change,HR = 1.03,95%CI:1.01-1.06,P < 0.012).CONCLUSION:RA pressure increased immediately after TIPS particularly in patients with worse liver function,portal hypertension,emergent TIPS placement and history of splenectomy.The increase in RA pressure after TIPS was associated with increased mortality.Age,splenectomy,MELD score and CTP grade were independent predictors of long-term mortality after TIPS. | Mona Ascha Sami Abuqayyas Ibrahim Hanouneh Laith Alkukhun Mark Sands Raed A Dweik Adriano R Tonelli | 2016 | World Journal of Hepatology2016,8,11: | 13 |
| 14 | Management of granulomatous lobular mastitis: an international multidisciplinary consensus(2021 edition)显示文摘Granulomatous lobular mastitis(GLM) is a rare and chronic benign inflammatory disease of the breast. Difficulties exist in the management of GLM for many front-line surgeons and medical specialists who care for patients with inflammatory disorders of the breast. This consensus is summarized to establish evidence-based recommendations for the management of GLM. Literature was reviewed using PubMed from January 1, 1971 to July 31, 2020. Sixty-six international experienced multidisciplinary experts from 11 countries or regions were invited to review the evidence.Levels of evidence were determined using the American College of Physicians grading system, and recommendations were discussed until consensus. Experts discussed and concluded 30 recommendations on historical definitions,etiology and predisposing factors, diagnosis criteria, treatment, clinical stages, relapse and recurrence of GLM. GLM was recommended as a widely accepted definition. In addition, this consensus introduced a new clinical stages and management algorithm for GLM to provide individual treatment strategies. In conclusion, diagnosis of GLM depends on a combination of history, clinical manifestations, imaging examinations, laboratory examinations and pathology.The approach to treatment of GLM should be applied according to the different clinical stage of GLM. This evidencebased consensus would be valuable to assist front-line surgeons and medical specialists in the optimal management of GLM. | Qian-Qian Yuan Shu-Yuan Xiao Omar Farouk Yu-Tang Du Fereshte Sheybani Qing Ting Tan Sami Akbulut Kenan Cetin Afsaneh Alikhassi Rami Jalal Yaghan Irmak Durur-Subasi Fatih Altintoprak Tae Ik Eom Fatih Alper Mustafa Hasbahceci David Martínez-Ramos Pelin Seher Oztekin Ava Kwong Cedric W.Pluguez-Turul Kirstyn EBrownson Shirish Chandanwale Mehran Habib Liu-Yi Lan Rui Zhou Xian-Tao Zeng Jiao Bai Jun-Wen Bai Qiong-Rong Chen Xing Chen Xiao-Ming Zha Wen-Jie Dai Zhi-Jun Dai Qin-Yu Feng Qing-Jun Gao Run-Fang Gao Bao-San Han Jin-Xuan Hou Wei Hou Hai-Ying Liao Hong Luo Zheng-Ren Liu Jing-Hua Lu Bin Luo Xiao-Peng Ma Jun Qian Jian-Yong Qin Wei Wei Gang Wei Li-Ying Xu Hui-Chao Xue Hua-Wei Yang Wei-Ge Yang Chao-Jie Zhang Fan Zhang Guan-Xin Zhang Shao-Kun Zhang Shu-Qun Zhang Ye-Qiang Zhang Yue-Peng Zhang Sheng-Chu Zhang Dai-Wei Zhao Xiang-Min Zheng Le-Wei Zheng Gao-Ran Xu Wen-Bo Zhou Gao-Song Wu | 2022 | Military Medical Research2022,9,4: | 13 |
| 15 | Cholecystectomy and the risk of alimentary tract cancers:A systematic review显示文摘AIM: To investigate the association between cholecystectomy and gastro-intestinal tract(GIT) cancers.METHODS: We conducted a systematic review according to the PRISMA guidelines. A MEDLINE search was performed with predefined search criteria for English Language articles on the association between cholecystectomy and GIT cancers. Additional articles were retrieved by manual search of references. All relevant articles were accessed in full text. Data onstudy type; cases; controls; country; effect estimate; adjustments for confounders and quality of publication were extracted. The quality of the publications were scored by adherence to the STROBE checklist. The data for each part of the GIT were presented in separate tables.RESULTS: Seventy-five studies and 5 meta-analyses satisfied the predefined criteria for inclusion and were included in this review. There were inconsistent reports and no strong evidence of an association between cholecystectomy and cancers of the oesophagus(Adenocarcinoma), pancreas, small bowel and rightsided colon cancers. In squamous cancer of the oesophagus, cancers of the stomach, liver, bile ducts, small bowel and left sided colon cancers, good quality studies suggested a lack of association with cholecystectomy. Equally, distal colon and rectal cancers were found not to be associated with cholecystectomy. Several mechanisms for carcinogenesis/promotion of carcinogensis have been proposed. These have focused on a role for bile salts in carcinogenesis with several potential mutagenic molecular events and gut metabolic hormones signaling cell proliferation or initiation of carcinogenesis.CONCLUSION: This is a comprehensive review of the association between GIT cancers and cholecystectomy. This review found no clear association between cholecystectomy and GIT cancers. | Maria Coats Sami M Shimi | 2015 | World Journal of Gastroenterology2015,21,12: | 12 |
| 16 | The effects of the rotor-stator interaction on unsteady pressure pulsation and radial force in a centrifugal pump显示文摘An unsteady numerical analysis has been conducted to study the strong interaction between impeller blade and volute tongue of a centrifugal pump. The 3-D-URANS equations were solved with the shear stress transport turbulence model for a wide range of flow rates. These unsteady interactions are mostly related to the unsteady radial force due to an imbalance in the pressure field at the impeller periphery. This force represents dynamic load that are one of the most important sources of vibration and hydraulic noise. Based on this phenomenon, this work analyzes and gives a more realistic prediction of the pressure fluctuation and the radial force during steady and unsteady calculation by considering the effect of the change in the pump operating point. Actually, the pressure fluctuations in the impeller and the volute were recorded by mounting nine monitoring points on the impeller and volute casing. The results of the existing analysis has proven that the pressure fluctuation is periodic due to the relative position of impeller blade to volute tongue. The characteristics of the time domain and frequency domain of the pressure pulsation were analyzed under different coupling conditions. Fast Fourier transform was performed to obtain the spectra of pressure pulsation. Besides, the steady and unsteady forces were calculated around the impeller periphery to fully characterize the pump behavior. The obtained pump performance curves were numerically compared with the experimental ones, and the outcome have shown an acceptable agreement between both curves. | Issa Chalghoum Sami Elaoud Hatem Kanfoudi Mohsen Akrout | 2018 | Journal of Hydrodynamics2018,30,4: | 12 |
| 17 | 胆囊切除术与消化道癌症的风险:一项系统性综述显示文摘目的研究胆囊切除术与胃肠道(gastro-intestinal tract,GIT)癌症的关系。方法我们遵循PRISMA(译者注)指南进行了这项系统性综述。借助Medline用预设检索标准对有关胆囊切除与GIT癌症的英文文献进行检索。通过手工查询参考文献的方法得到其他文献。所有文献都得到了全文。从中提取的数据包括:研究类型、病例数、对照、国家、效度、混杂因素的校正和文献质量。采用STROBE(译者注)核查表对文献质量进行评分。GIT每个部位的数据录入不同的表格。结果有75项研究和5项meta分析符合预选标准进入这项综述。入选的研究结果相互矛盾,没有强的证据表明胆囊切除与食管癌(腺癌)、胰腺癌、小肠癌以及右半结肠癌有关。高质量的研究中,胆囊切除与食管鳞癌、胃癌、肝癌、胆管癌、小肠癌、左半结肠癌没有关系。同样,远端结肠癌和直肠癌也没有观察到与胆囊切除有关。文献提出了一些致癌或促癌的机理,这些机理集中在胆汁酸盐对一些潜在突变分子的致癌作用以及作用于GIT代谢激素,这些代谢激素信号可以导致细胞增殖或癌症生成。结论这是一项关于胆囊切除与GIT癌症关系的综合性综述,结果没有显示胆囊切除与GIT癌症之间有明确的联系。 | 郭绍红 Maria Coats Sami M Shimi | 2017 | 中国微创外科杂志2017,17,1: | 12 |
| 18 | Combination of Model-based Observer and Support Vector Machines for Fault Detection of Wind Turbines显示文摘Support vector machines and a Kalman-like observer are used for fault detection and isolation in a variable speed horizontalaxis wind turbine composed of three blades and a full converter. The support vector approach is data-based and is therefore robust to process knowledge. It is based on structural risk minimization which enhances generalization even with small training data set and it allows for process nonlinearity by using flexible kernels. In this work, a radial basis function is used as the kernel. Different parts of the process are investigated including actuators and sensors faults. With duplicated sensors, sensor faults in blade pitch positions,generator and rotor speeds can be detected. Faults of type stuck measurements can be detected in 2 sampling periods. The detection time of offset/scaled measurements depends on the severity of the fault and on the process dynamics when the fault occurs. The converter torque actuator fault can be detected within 2 sampling periods. Faults in the actuators of the pitch systems represents a higher difficulty for fault detection which is due to the fact that such faults only affect the transitory state(which is very fast) but not the final stationary state. Therefore, two methods are considered and compared for fault detection and isolation of this fault: support vector machines and a Kalman-like observer. Advantages and disadvantages of each method are discussed. On one hand, support vector machines training of transitory states would require a big amount of data in different situations, but the fault detection and isolation results are robust to variations in the input/operating point. On the other hand, the observer is model-based, and therefore does not require training, and it allows identification of the fault level, which is interesting for fault reconfiguration. But the observability of the system is ensured under specific conditions, related to the dynamics of the inputs and outputs. The whole fault detection and isolation scheme is evaluated using a wind turbine benchmark with a real sequence of wind speed. | Nassim Laouti Sami Othman Mazen Alamir Nida Sheibat-Othman | 2014 | International Journal of Automation and computing2014,11,3: | 11 |
| 19 | Associating liver partition and portal vein ligation for staged hepatectomy for extensive alveolar echinococcosis:First case report in the literature显示文摘Alveolar echinococcosis(AE) is a zoonotic disease that is caused by Echinococcus multilocularis that affects liver and a variety of organs and tissues. It differs from other echinococcal disease because it shows tumor like behavior in the affected organ and tissues. The treatment of choice is concomitant medical therapy and resection with negative margins. Nevertheless, resection with the intent of negative margins(R0) may lead to serious complications such as liver failure. In the present case report, we used Associating Liver Partition and Portal Vein Ligation for Staged Hepatectomy(ALPPS) procedure, which was defined in 2012 by Schnitzbauer et al, in a 28-year-old male patient to avoid complications of major liver resection in order to treat alveolar echinococcosis. Until now, we have not encountered any study using ALPPS procedure for the treatment of alveolar echinococcosis. In the present case report we aimed to show that ALPPS procedure can be safely performed for marginnegative resection of primary or recurrent AE that shows a tumor like behavior. It is our opinion that this procedure should be performed in centers that have expertise and sufficient technical capacity to perform liver transplantation and advanced liver surgery. | Sami Akbulut Egemen Cicek Mehmet Kolu Tevfik Tolga Sahin Sezai Yilmaz | 2018 | World Journal of Gastrointestinal Surgery2018,10,1: | 10 |
| 20 | 3-D bioprinting technologies in tissue engineering and regenerative medicine:Current and future trends显示文摘Advances in three-dimensional(3D)printing have increased feasibility towards the synthesis of living tissues.Known as 3D bioprinting,this technology involves the precise layering of cells,biologic scaffolds,and growth factors with the goal of creating bioidentical tissue for a variety of uses.Early successes have demonstrated distinct advantages over conventional tissue engineering strategies.Not surprisingly,there are current challenges to address before 3D bioprinting becomes clinically relevant.Here we provide an overview of 3D bioprinting technology and discuss key advances,clinical applications,and current limitations.While 3D bioprinting is a relatively novel tissue engineering strategy,it holds great potential to play a key role in personalized medicine. | Elliot S.Bishop Sami Mostafa Mikhail Pakvasa Hue H.Luu Michael J.Lee Jennifer Moriatis Wolf Guillermo A.Ameer Tong-Chuan He Russell R.Reid | 2017 | Genes & Diseases2017,4,4: | 10 |