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1Progress in surgical and nonsurgical approaches for hepatocellular carcinoma treatment显示文摘BACKGROUND:Hepatocellular carcinoma(HCC) is a complex and heterogeneous malignancy,frequently occurs in the setting of a chronically diseased organ,with multiple confounding factors making its management challenging.HCC represents one of the leading causes of cancer-related mortality globally with a rising trend of incidence in some of the developed countries,which indicates the need for better surgical and nonsurgical management strategies.DATA SOURCES:Pub Med database was searched for relevant articles in English on the issue of HCC management.RESULTS:Surgical resection represents a potentially curative option for appropriate candidates with tumors detected at earlier stages and with well-preserved liver function.The long-term outcome of surgery is impaired by a high rate of recurrence.Surgical approaches are being challenged by local ablative therapies such as radiofrequency ablation and microwave ablation in selected patients.Liver transplantation offers potential cure for HCC and also correction of underlying liver disease,and minimizes the risk of recurrence,but is reserved for patients within a set of criteria proposed for a prudent allocation in the shortage of donor organs.Transcatheter locoregional therapies have become the palliative standard allowing local control for intermediate stage patients with noninvasive multinodular or large HCC who are beyond the potentially curative options.The significant survival benefit with the multikinase inhibitor sorafenib for advanced HCC has shifted the direction of research regarding systemic treatment toward molecular therapies targeting the disregulated pathways of hepatocarcinogenesis.Potential benefit is suggested from simultaneous or sequential multimodal therapies,and optimal combinations are being investigated.Despite the striking progress in preclinical studies of HCC immunotherapy and gene therapy,extensive clinical trials are required to achieve successful clinical applications of these innovative approaches.CONCLUSION:Treatment decisions have become increasingly complex for HCC with the availability of multiple surgical and nonsurgical therapeutic options and require a comprehensive,multidisciplinary approach.Ender Gunes Yegin Erkan Oymac1 Emrah Karatay Ahmet Coker 2016Hepatobiliary & Pancreatic Diseases International2016,15,3:14
2NAFLD fibrosis score:A prognostic predictor for mortality and liver complications among NAFLD patients显示文摘AIM:To study whether the severity of liver fibrosis estimated by the nonalcoholic fatty liver disease(NAFLD) fibrosis score can predict all-cause mortality,cardiac complications,and/or liver complications of patients with NAFLD over long-term follow-up.METHODS:A cohort of well-characterized patients with NAFLD diagnosed during the period of 1980-2000 was identified through the Rochester Epidemiology Project.The NAFLD fibrosis score(NFS) was used to separate NAFLD patients with and without advanced liver fibrosis.We used the NFS score to classify the probability of fibrosis as <-1.5 for low probability,>-1.5 to < 0.67 for intermediate probability,and > 0.67 for high probability.Primary endpoints included allcause death and cardiovascular-and/or liver-related mortality.From the 479 patients with NAFLD assessed,302 patients(63%) greater than 18 years old were included.All patients were followed,and medical charts were reviewed until August 31,2009 or the date when the first primary endpoint occurred.By using a standardized case record form,we recorded a detailed history and physical examination and the use of statins and metformin during the follow-up period.RESULTS:A total of 302/479(63%) NAFLD patients(mean age:47 ± 13 year) were included with a followup period of 12.0 ± 3.9 year.A low probability of advanced fibrosis(NFS <-1.5 at baseline) was found in 181 patients(60%),while an intermediate or high probability of advanced fibrosis(NSF >-1.5) was found in 121 patients(40%).At the end of the follow-up period,55 patients(18%) developed primary endpoints.A total of 39 patients(13%) died during the follow-up.The leading causes of death were non-hepatic malignancy(n = 13/39;33.3%),coronary heart disease(CHD)(n = 8/39;20.5%),and liver-related mortality(n = 5/39;12.8%).Thirty patients had new-onset CHD,whereas 8 of 30 patients(27%) died from CHD-related causes during the follow-up.In a multivariate analysis,a higher NFS at baseline and the presence of new-onset CHD were significantly predictive of death(OR = 2.6 and 9.2,respectively;P < 0.0001).Our study showed a significant,graded relationship between the NFS,as classified into 3 subgroups(low,intermediate and high probability of liver fibrosis),and the occurrence of primary endpoints.The use of metformin or simvastatin for at least 3 mo during the follow-up was associated with fewer deaths in patients with NAFLD(OR = 0.2 and 0.03,respectively;P < 0.05).Additionally,the rate of annual NFS change in patients with an intermediate or high probability of advanced liver fibrosis was significantly lower than those patients with a low probability of advanced liver fibrosis(0.06 vs 0.09,P = 0.004).The annual NFS change in patients who died was significantly higher than those in patients who survived(0.14 vs 0.07,P = 0.03).At the end of the follow-up,we classified the patients into 3 subgroups according to the progression pattern of liver fibrosis by comparing the NFS at baseline to the NFS at the end of the followup period.Most patients were in the stable-fibrosis(60%) and progressive-fibrosis(37%) groups,whereas only 3% were in the regressive fibrosis.CONCLUSION:A higher NAFLD fibrosis score at baseline and a new onset of CHD were significantly predictive of death in patients with NAFLD.Sombat Treeprasertsuk Einar Bjrnsson Felicity Enders Sompongse Suwanwalaikorn Keith D Lindor 2013World Journal of Gastroenterology2013,19,8:13
3Percutaneous nephrolithotomy in pediatric age group:Assessment of effectiveness and complications显示文摘Management of kidney stone disease in pediatric population is a challenging condition in urology practice. While the incidence of kidney stone is increasing in those group, technological innovations have conrtibuted to the development of minimally invasive treatment of urinary stone disease such as mini-percutenous nephrolitotomy(mini-PCNL), micro-PCNL, ultra mini-PCNL. In this review we tried to evaluate the effect of new teratment techniques on pediatric kidney stones.Ender Ozden Mehmet Necmettin Mercimek 2016World Journal of Nephrology2016,5,1:12
4Serum positive cagA in patients with non-ulcer dyspepsia and peptic ulcer disease from two centers in different regions of Turkey显示文摘AIM: To investigate and compare frequencies of serum positive cagA in patients from two separate regions of Turkey who were grouped according to the presence of peptic ulcer disease or non-ulcer dyspepsia.METHODS: One hundred and eighty Helicobacter pyloripositive patients with peptic ulcer disease or non-ulcer dyspepsia were included in the study. One hundred and fourteen patients had non-ulcer dyspepsia and 66 had peptic ulcer disease (32 with gastric ulcers and/or erosions and 34with duodenal ulcers). Each patient was tested for serum antibody to H. pylori cagA protein by enzyme immunoassay.RESULTS: The total frequency of serum positive cagA in the study group was 97.2 %. The rates in the patients with peptic ulcers and in those with non-ulcer dyspepsia were 100% and 95.6%, respectively. These results were similar to those reported in Asian studies, but higher than those that have been noted in other studies from Turkey and Western countries.CONCLUSION: The high rates of serum positive cagA in these patients with peptic ulcer disease and non-ulcer dyspepsia were similar to results reported in Asia. The fact that there was high seroum prevalence regardless of ulcer status suggests that factors other than cagA might be responsible for ulceration or other types of severe pathology in H. pylori-positive individuals.Ender Serin Uur Yilmaz Ganiye Künefeci Birol zer Yüksel Gümürdülü Mustafa Gülü Fazilet Kayaseluk Sedat Boyaciolu 2003World Journal of Gastroenterology2003,9,4:10
5Current developments in natural orifices transluminal endoscopic surgery:An evidence-based review显示文摘Tremendous advances have been made in recent years addressing the key obstacles to safe performance and introduction of human natural orifice transluminal endoscopic surgery (NOTES). Animal studies have focused on identifying optimal solutions to these obstacles, in particular methods of creating transluminal access,safe closure of the point of access, and development of a multitasking platform with dedicated instruments. Whether the performance data generated from these animal studies can be reproduced in humans has yet to be determined. Reports of human NOTES procedures are emerging, and the possibility of accomplishing human NOTES based on existing technology has been demonstrated. However, dedicated platforms and devices are still lacking to allow for pure NOTES procedures, and whether NOTES can deliver the postulated benef its of earlier recovery and improved cosmesis remains uncertain.Anthony Yuen Bun Teoh Philip Wai Yan Chiu Enders Kwok Wai Ng 2010World Journal of Gastroenterology2010,16,38:7
6Screening for gastric cancer in Asia: current evidence and practice显示文摘Wai K Leung Ming-shiang Wu Yasuo Kakugawa Jae J Kim Khay-guan Yeoh Khean Lee Goh Kai-chun Wu Deng-chyang Wu Jose Sollano Udom Kachintorn Takuji Gotoda Jaw-town Lin Wei-cheng You Enders KW Ng Joseph JY Sung 2008Lancet Oncology2008,,3:7
7Coexistence of acute myocardial infarction with normal coronary arteries and migraine with aura in a female patient显示文摘Acute myocardial infarction with normal coronary arteries is a well known condition,which is typically diagnosed in young patients.Coronary vasospasm,inherited,acquired or malignancy-induced hypercoagulable state,collagen vascular disease and coronary arterial embolism have been considered as underlying etiologic factors.An association between migraine with aura and increased risk of ischemic stroke,angina and myocardial infarction has been demonstrated in studies.Patients with migraine and especially with aura should be followed closely against cardiovascular events even if they are young and do not have traditional risk factors.Umut Celikyurt Goksel Kahraman Ender Emre 2011World Journal of Cardiology2011,3,7:6
8Impacts of low-intensity prescribed fire on microbial and chemical soil properties in a Quercus frainetto forest显示文摘Prescribed fire is a common economical and effective forestry practice, and therefore it is important to understand the effects of fire on soil properties for better soil management. We investigated the impacts of low-intensity prescribed fire on the microbial and chemical properties of the top soil in a Hungarian oak(Quercus frainetto Ten.) forest. The research focused on microbial soil parameters(microbial soil respiration(RSM), soil microbial biomass carbon(Cmic) and metabolic quotient(qCO_2) and chemical topsoil properties(soil acidity(pH),electrical conductivity(EC), carbon(C), nitrogen(N), C/N ratio and exchangeable cations). Mean annual comparisons show significant differences in four parameters(C/N ratio,soil pH, Cmic and qCO_2) while monthly comparisons do not reveal any significant differences. Soil pH increased slightly in the burned plots and had a significantly positive correlation with exchangeable cations Mg, Ca, Mn and K.The mean annual C/N ratio was significantly higher in the burned plots(28.5:1) than in the control plots(27.0:1). The mean annual Cmic(0.6 mg g^(-1)) was significantly lower although qCO_2(2.5 lg CO_2–C mg Cmic h^(-1)) was significantly higher, likely resulting from the microbial response to fire-induced environmental stress. Low-intensity prescribed fire caused very short-lived changes. The annual mean values of C/N ratio, pH, Cmic and qCO_2 showed significant differences.Serdar Akburak Yowhan Son Ender Makineci Meric Cakir 2018Journal of Forestry Research2018,29,3:6
9Partial virological response to three different nucleotide analogues in naive patients with chronic hepatitis B显示文摘BACKGROUND: The definition of partial virological response(PVR) was proposed because of its clinical relevance. PVR relates to subsequent therapeutic failure which results in the modification of the regimen. Whether this rationale can be applied to all nucleotide analogues (NA) is not clear. This study was undertaken to analyze PVR influence on therapeutic outcomes during lamivudine, entecavir or tenofovir mono therapy in NA-naive patients with chronic hepatitis B in routine clinical practice.METHODS: We retrospectively analyzed 150 NA-naive patients with chronic hepatitis B. These subjects received lamivudine entecavir or tenofovir monotherapy between February 2001 and July 2013.RESULTS: Sixty-nine patients were treated with lamivudine, 35with entecavir, and 46 with tenofovir. The median therapeutic duration was 19.5 (6-147) months. PVR rates at 24 weeks were similar among three NAs (lamivudine 33.3%, entecavir 35.0%tenofovir 32.4%, P=0.981). For all three NAs, patients with a higher baseline viral load or HBeA g-positive status had a higher serum viral positive rate tested by polymerase chain reaction at week 24 and 48. Cumulative probability of virological breakthrough (VBR) for patients treated with lamivudine was67% at 5 years, and PVR at 24 weeks was the independent risk factor for VBR (HR: 3.09; 95% CI: 1.09-8.74; P=0.034); also lamivudine treated patients older than 50 years seemed to have a tendency for VBR (HR: 2.80; 95% CI: 0.99-8.18; P=0.052)A majority of entecavir and tenofovir partial responders achieved and maintained virological response with prolonged monotherapy, except one entecavir treated patient who experienced VBR due to resistance mutations.CONCLUSIONS: Management strategy for lamivudine treatment should include adaptation of regimen according to PVR as an on-treatment response parameter due to its relation with unacceptably high VBR probability. Similar conclusion should not be directly related to entecavir or tenofovir treatment.Ender G Yegin Osman Cavit Ozdogan 2014Hepatobiliary & Pancreatic Diseases International2014,13,6:5
10Low eradication rate of Helicobacterpyloriwith triple 7-14 days and quadriple therapy in Turkey显示文摘AIM:The eradication rate of Helicobacter pylori (H pylon) shows variation among countries and regimens of treatment.We aimed to study the eradication rates of different regimens in our region and some factors affecting the rate of eradication.METHODS:One hundred and sixty-four Hpylori positivepatients (68 males, 96 females; mean age:48±12 years)with duodenal or gastric ulcer without a smoking history were included in the study. The patients were divided into three groups according to the treatment regimens. Omeprazole 20mg, clarithromycin 500mg, amoxicillin 1g were given twice daily for 1 week (Group I) and 2 weeks (Group Ⅱ).Patients in Group Ⅲ received bismuth subsitrate 300mg,tetracyline 500 mg and metronidazole 500mg four times daily in addition to Omeprazole 20mg twice daily.Two biopsies each before and after treatment were obtained from antrum and corpus, and histopathologically evaluated.Eradication was assumed to be successful if no Hpylorus was detected from four biopsy specimens taken after treatment. The effects of factors like age, sex, Hpyloridensity on antrum and corpus before treatment, the total Hpylori density, and the inflammation scores on the rate of Hpylori eradication were evaluated.RESULTS:The overall eradication rate was 42%. The rates in groups Ⅱ and Ⅲ were statistically higher than that in group I (P<0.05). The rates of eradication were 24.5%,40.7% and 61.5% in groups Ⅰ, Ⅱ and Ⅲ, respectively. The eradication rate was negatively related to either corpus Hpylori density or total Hpyloridensity (P<0.05).The median age was older in the group in which the eradication failed in comparison to that with successful eradication (55yr vs 39yr, P<0.001). No correlation between sex and Hpylori eradication was found.CONCLUSION: Our rates of eradication were significantly lower when compared to those reported in literature.We believe that advanced age and high Hpyloridensity are negative predictive factors for the rate of Hpylorieradication.Yuksel Gumurdulu Ender Serin Birol zer Fazilet Kayaselcuk Kursat Ozsahin Arif Mansur Cosar Murat Gursoy Gurden Gur Ugur Yilmaz Sedat Boyacioglu 2004World Journal of Gastroenterology2004,10,5:4
11Predictors of poor outcome in gastrointestinal bleeding in emergency department显示文摘AIM: To determine the prognostic risk factors of gastrointestinal bleeding in emergency department cases.METHODS: The trial was a retrospective single-center study involving 600 patients over 18-years-old and carried out with approval by the Institutional Ethics Committee. Patient data included demographic characteristics, symptoms at admission, past medical history, vital signs, laboratory results, endoscopy and colonoscopy results, length of hospital stay, need of intensive care unit(ICU) admission, and mortality. Mortality rate was the principal endpoint of the study, while duration of hospital stay, required interventional treatment, and admission to the ICU were secondary endpoints.RESULTS: The mean age of patients was 61.92-yearsold. Among the 600 total patients, 363(60.5%) underwent upper gastrointestinal endoscopy and the most frequent diagnoses were duodenal ulcer(19.2%) and gastric ulcer(12.8%). One-hundred-and-fifteen(19.2%) patients required endoscopic treatment, 20(3.3%) required surgical treatment, and 5(0.8%) required angiographic embolization. The mean length of hospital stay was 5.21 ± 5.85 d. The mortality rate was 6.3%. The ICU admission rate was 5.3%. Patients with syncope, higher blood glucose levels, and coronary artery disease had significantly higher ICU admission rates(P = 0.029, P = 0.043, and P = 0.002, respectively). Patients with low thrombocyte levels, high creatinine, high international normalized ratio, and high serum transaminase levels had significantly longer hospital stay(P = 0.02, P = 0.001, P = 0.019, and P = 0.005, respectively). Patients who died had significantly higher serum blood urea nitrogen and creatinine levels(P = 0.016 and P = 0.038), and significantly lower mean blood pressure and oxygen saturation(P = 0.004 and P = 0.049). Malignancy and low Glasgow coma scale(GCS) were independent predictive factors of mortality.CONCLUSION: Prognostic factors for gastrointestinal bleeding in emergency room cases are malignancy, hypotension on admission, low GCS, and impaired kidney function.Ender Kaya Mehmet Ali Karaca Deniz Aldemir M Mahir Ozmen 2016World Journal of Gastroenterology2016,22,16:4
12Optimization of CNC cutting parameters using design of experiment(DOE) and desirability function显示文摘In this study,2~5 (five factors at two-level factorial design) design of experiment was applied to investigate a set of optimal machining parameters to achieve a minimum surface roughness value for Abies nordmanniana.Wood specimens were prepared using different values of spindle speed,feed rate,depth of cut,tool radius,and cutting directions.Average surface roughness (R_z) values were applied using a stylus.The objectives were to:(1)obtain the effective variables of wood surface roughness;(2) analyze which of these factors had an impact on variability in the CNC machining process;(3) evaluate the optimal cutting values within the range of different cutting levels of machining parameters.The results indicate that the design of experiment(DOE) based on the desirability function approach determined the optimal machining parameters successfully,leading to minimum R_a compared to the observed value.Minimum surface roughness values of tangential and radial cutting directions were 3.58 and 3.21 μm,respectively.Ender Hazir Emine Seda Erdinler Kücük Hüseyin Koc 2018Journal of Forestry Research2018,29,5:3
13Difficulties and outcomes in starting endoscopic submucosal dissection显示文摘Anthony Yuen Bun Teoh Philip Wai Yan Chiu Simon Kin Hung Wong Joseph Jao Yiu Sung James Yun Wong Lau Enders Kwok Wai Ng 2010Surgical Endoscopy2010,,5:3
14Confocal laser endoscopy for diagnosing intraepithelial neoplasias and colorectal cancer in vivo显示文摘Ralf Kiesslich Juergen Burg Michael Vieth Janina Gnaendiger Meike Enders Peter Delaney Adrian Polglase Wendy McLaren Daniela Janell Steven Thomas Bernhard Nafe Peter R. Galle Markus F. Neurath 2004Gastroenterology2004,,3:3
15Swallowed Fluticasone Improves Histologic but Not Symptomatic Response of Adults With Eosinophilic Esophagitis显示文摘Jeffrey A. Alexander Kee Wook Jung Amindra S. Arora Felicity Enders David A. Katzka Gail M. Kephardt Hirohito Kita Lori A. Kryzer Yvonne Romero Thomas C. Smyrk Nicholas J. Talley 2012Clinical Gastroenterology and Hepatology2012,,7:3
16Interaction between Janus Green B and bovine serum albumin:Electrochemistry and spectroscopy studies显示文摘在这研究, voltammetric 和在贾努斯·格林· B (JGB ) 和牛的浆液白朊(BSA ) 之间的相互作用的分光镜的调查被报导。相互作用在 BrittonRobinson 缓冲区被观察(pH 7.0 ) 。当 JGB 被加到包含 BSA 的答案时, BSA 的山峰水流与增加由于 JGB 和 BSA 的相互作用的 JGB 集中减少。有 BSA 的 JGB 的有约束力的常数被 voltammetric 数据获得。另外,这个相互作用借助于 UVvis 分光镜的大小被支持。JGB 的 UVvis 吸收系列与增加 BSA 集中面对 BSA 减少。Neslihan zdemir Serkan zdemir Ender Bier 2011Chinese Chemical Letters2011,22,6:3
17Helicobacter pylori eradication lowers serum homocysteine level in patients without gastric atrophy显示文摘AIM: To determine whether Helicobacter pylori ( H pylori)infection caused hyperhomocysteinemia by altering serum vitamin B12, serum folate and erythrocyte folate levels and whether eradication of this organism decreased serum homocysteine level.METHODS: The study involved 73 dyspeptic H pylori-positive patients, none of them had gastric mucosal atrophy based on rapid urease test and histology. Out of 73 patients, 41 (56.2%) showed a successful eradication of Hpylori4 wk after the end of treatment. In these 41 patients, fasting serum vitamin B12, folate and homocysteine levels, and erythrocyte folate levels before and 4 wk after Hpylorieradication therapy were compared.RESULTS: The group with a successful eradication of Hpylori had significantly higher serum vitamin B12 and erythrocyte folate levels in the post-treatment period compared to those in pre-treatment period (210±97 pg/mL vs237±94pg/mL, P<0.O01 and 442±212 ng/mL vs 539±304 ng/mL,P = 0.024, respectively), but showed no significant change in serum folate levels (5.6±2.6 ng/mL vs 6.0±2.4 ng/mL,P= 0.341). Also, the serum homocysteine levels in this group were significantly lower after therapy (13.1±5.2 μmol/L vs 11.9±6.2 μmol/L, P = 0.002). Regression analysis showed that serum homocysteine level was positively correlated with age (P = 0.01) and negatively with serum folate level before therapy (P = 0.003).CONCLUSION: Eradication of H pylori decreases serum homocysteine even in patients who do not exhibit gastric mucosal atrophy. It appears that the level of homocysteine in serum is related to a complex interaction among serum vitamin B12, serum folate and erythrocyte folate levels.Birol Ozer Ender Serin Yuksel Gumurdulu Fazilet Kayaselcuk Ruksan Anarat Gurden Gur Kemal Kul Mustafa Guclu Sedat Boyacioglu 2005World Journal of Gastroenterology2005,11,18:3
18Screening for gastric cancer in Asia: current evidence and practice显示文摘Wai K Leung Ming-shiang Wu Yasuo Kakugawa Jae J Kim Khay-guan Yeoh Khean Lee Goh Kai-chun Wu Deng-chyang Wu Jose Sollano Udom Kachintorn Takuji Gotoda Jaw-town Lin Wei-cheng You Enders KW Ng Joseph JY Sung 2008Lancet Oncology2008,,3:3
19Corn growth and nitrogen nutrition after additions of biochars with varying properties to a temperate soil显示文摘Shelby Rajkovich Akio Enders Kelly Hanley Charles Hyland Andrew R. Zimmerman Johannes Lehmann 2012Biology and Fertility of Soils2012,,3:2
20Single session removal of forgotten encrusted ureteral stents: combined endourological approach显示文摘Yakup Bostanci Ender Ozden Fatih Atac Yarkin Yakupoglu Ali Yilmaz Saban Sarikaya 2012Urological Research2012,,5:2
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