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| 1 | Incidence of human papilloma virus in esophageal squamous cell carcinoma in patients from the Lublin region显示文摘AIM:To assess the prevalence of human papilloma virus(HPV) in esophageal squamous cell carcinoma(ESCC) in the south-eastern region of Poland.METHODS:The study population consisted of 56 ESCC patients and 35 controls.The controls were patients referred to our department due to other nonesophageal and non-oncological disorders with no gross or microscopic esophageal pathology as confirmed by endoscopy and histopathology.In the ESCC patients,samples were taken from normal mucosa(56 mucosa samples) and from the tumor(56 tumor samples).Tissue samples from the controls were taken from normal mucosa of the middle esophagus(35 control samples).Quantitative determination of DNA was carried out using a spectrophotometric method.Genomic DNA was isolated using the QIAamp DNA Midi Kit.HPV infection was identified following PCR amplification of the HPV gene sequence,using primers MY09 and MY11 complementary to the genome sequence of at least 33 types of HPV.The sequencing results were computationally analyzed using the basic local alignment search tool database.RESULTS:In tumor samples,HPV DNA was identified in 28 of 56 patients(50%).High risk HPV phenotypes(16 or/and 18) were found in 5 of 56 patients(8.9%),low risk in 19 of 56 patients(33.9%) and other types of HPV(37,81,97,CP6108) in 4 of 56 patients(7.1%).In mucosa samples,HPV DNA was isolated in 21 of 56 patients(37.5%).High risk HPV DNA was confirmed in 3 of 56 patients(5.3%),low risk HPV DNA in 12 of 56 patients(21.4%),and other types of HPV in 6 of 56 patients(10.7%).In control samples,HPV DNA was identified in 4 of 35 patients(11.4%) with no high risk HPV.The occurrence of HPV in ESCC patients was significantly higher than in the controls [28 of 56(50%) vs 4 of 35(11.4%),P < 0.001].In esophageal cancer patients,both in tumor and mucosa samples,the predominant HPV phenotypes were low risk HPV,isolated 4 times more frequently than high risk phenotypes [19 of 56(33.9%) vs 5 of 56(8.9%),P < 0.001].A higher prevalence of HPV was identified in female patients(71.4% vs 46.9%).Accordingly,the high risk phenotypes were isolated more frequently in female patients and this difference reached statistical significance [3 of 7(42.9%) vs 2 of 49(4.1%),P < 0.05].Of the pathological characteristics,only an infiltrative pattern of macroscopic tumor type significantly correlated with the presence of HPV DNA in ESCC samples [20 of 27(74.1%) vs 8 of 29(27.6%) for ulcerative or protruding macroscopic type,P < 0.05].The occurrence of total HPV DNA and both HPV high or low risk phenotypes did not significantly differ with regard to particular grades of cellular differentiation,phases in depth of tumor infiltration,grades of nodal involvement and stages of tumor progression.CONCLUSION:Low risk HPV phenotypes could be one of the co-activators or/and co-carcinogens in complex,progressive,multifactorial and multistep esophageal carcinogenesis. | Andrzej Dabrowski Wojciech Kwasniewski Tomasz Skoczylas Wiesawa Bednarek Dorota Kuzma Anna Gozdzicka-Józefiak | 2012 | World Journal of Gastroenterology2012,18,40: | 55 |
| 2 | Successful aspiration and ethanol sclerosis of a large,symptomatic, simple liver cyst:Case presentation and review of the literature显示文摘简单的肝包囊与 2.5%-4.25% 的流行是先天的。成像,是否由美国, CT 或 MRI,在把简单包囊与另外的病原学区分开来是精确的,包括寄生,肿瘤,管相关,并且创伤性囊肿。征兆的简单的肝包囊是稀罕的,并且症状的真频率不被知道。征兆的简单的肝包囊主要大(>
4 厘米) ,在女人右边、更普通、更老的病人。绝大多数简单肝的包囊不要求治疗或后续,尽管大包囊(>
4 厘米) 可以开始与连续成像被跟随保证稳定性。到大简单包囊的症状的归属应该小心地被承担,在选择诊断以后被排除了。渴望可以被执行测试症状是否由于包囊;然而,包囊复发应该被期望。有 laparoscopic deroofing 和渴望的有限经验,由一个致硬化的代理人的灌输列在后面为征兆的包囊的治疗表明了有希望的结果。这里,我们与大、征兆的、简单的肝包囊描述一个病人经历了症状的完全的分辨率后面的包囊排水和白酒脱离,和我们在场文学的全面评论。 | Wojciech C Blonski Mical S Campbell Thomas Faust David C Metz | 2006 | World Journal of Gastroenterology2006,12,18: | 50 |
| 3 | Colorectal cancer tumour markers and biomarkers:Recenttherapeutic advances显示文摘Colorectal cancer(CRC) is the second most commonly diagnosed cancer among females and third among males worldwide. It also contributes significantly to cancer-related deaths, despite the continuous progress in diagnostic and therapeutic methods. Biomarkers currently play an important role in the detection and treatment of patients with colorectal cancer. Risk stratification for screening might be augmented by finding new biomarkers which alone or as a complement of existing tests might recognize either the predisposition or early stage of the disease. Biomarkers have also the potential to change diagnostic and treatment algorithms by selecting the proper chemotherapeutic drugs across a broad spectrum of patients. There are attempts to personalise chemotherapy based on presence or absence of specific biomarkers. In this review, we update review published last year and describe our understanding of tumour markers and biomarkers role in CRC screening, diagnosis, treatment and follow-up. Goal of future research is to identify those biomarkers that could allow a non-invasive and cost-effective diagnosis, as well as to recognise the best prognostic panel and define the predictive biomarkers for available treatments. | Gustaw Lech Robert Słotwiński Maciej Słodkowski Ireneusz Wojciech Krasnodębski | 2016 | World Journal of Gastroenterology2016,22,5: | 33 |
| 4 | Non-viral causes of hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC) is the most common primary liver malignancy and represents an international public health concern as one of the most deadly cancers worldwide.The main etiology of HCC is chronic infection with hepatitis B and hepatitis C viruses.However,there are other important factors that contribute to the international burden of HCC.Among these are obesity,diabetes,non-alcoholic steatohepatitis and dietary exposures.Emerging evidence suggests that the etiology of many cases of HCC is in fact multifactorial,encompassing infectious etiologies,comorbid conditions and environmental exposures.Clarification of relevant non-viral causes of HCC will aid in preventative efforts to curb the rising incidence of this disease. | Wojciech Blonski David S Kotlyar Kimberly A Forde | 2010 | World Journal of Gastroenterology2010,16,29: | 25 |
| 5 | Endoscopic submucosal dissection for the treatment of neoplastic lesions in the gastrointestinal tract显示文摘AIM: To investigate the indications, resection rate, and safety of endoscopic submucosal dissection (ESD) for neoplastic lesions in the gastrointestinal tract at a European referral center. METHODS: We carried out a retrospective analysis of the ESD procedures performed in our center for mucosal neoplastic and submucosal lesions of the gastrointestinal tract. The duration of the procedure, en bloc and complete (R0) resection rates, and complication rates were evaluated. Variables were reported as mean ± SD or simple proportions. Univariate analysis and comparisons of procedure times and resection rates were performed using Mann-Whitney U tests, or χ2 tests for dichotomous variables.RESULTS: Between 2007 and 2011, ESD was performed in a total of 103 patients (46.7% male, mean age 64.0 ± 12.7 years). The indications for the procedure were epithelial tumor (n = 54), submucosal tumor (n = 42), or other (n = 7). The total en bloc resection rate was 90.3% (93/103) and R0 resection rate 80.6% (83/103). The median speed of the procedure was 15.0 min/cm2 . The complete resection rate was lower for submucosal tumors arising from the muscle layer (68%, 15/22, P < 0.05). Resection speed was quicker for submucosal tumors localized in the submucosal layer than for lesions arising from the muscularis propria layer (8.1 min/cm 2 vs 17.9 min/cm 2 , P < 0.05). The R0 resection rate and speed were better in the last 24 mo (90.1%, 49/54 and 15.3 min/cm 2 ) compared to the first 3 years of treatment (73.5%, 36/49, P < 0.05 and 22.0 min/cm2 , P < 0.05). Complications occurred in 14.6% (n = 15) of patients, including perforation in 5.8% (n = 6), pneumoperitoneum in 3.9% (n = 4), delayed bleeding in 1.9% (n = 2), and other in 2.9% (n = 3). Only one patient with delayed perforation required surgical treatment. During the mean follow-up of 26 ± 15.3 mo, among patients with R0 resection, recurrence occurred in one patient (1.2%).CONCLUSION: ESD is an effective and safe method for resection of neoplastic lesions with low recurrence. Speed and the R0 resection rate increased after 50 procedures. | Andrzej Biaek Anna Wiechowska-Kozowska Jan Pertkiewicz Katarzyna Karpińska Wojciech Marlicz Piotr Milkiewicz Teresa Starzyńska | 2013 | World Journal of Gastroenterology2013,19,12: | 21 |
| 6 | Benign liver tumors in pediatric patients-Review with emphasis on imaging features显示文摘Benign hepatic tumors are commonly observed in adults,but rarely reported in children.The reasons for this remain speculative and the exact data concerning the incidence of these lesions are lacking.Benign hepatic tumors represent a diverse group of epithelial and mesenchymal tumors.In pediatric patients,most benign focal liver lesions are inborn and may grow like the rest of the body.Knowledge of pediatric liver diseases and their imaging appearances is essential in order to make an appropriate differential diagnosis.Selection of the appropriate imaging test is challenging,since it depends on a number of age-related factors.This paper will discuss the most frequently encountered benign liver tumors in children(infantile hepatic hemangioendothelioma,mesenchymal hamartoma,focal nodular hyperplasia,nodular regenerative hyperplasia,and hepatocellular adenoma),as well as a comparison to the current knowledge regarding such tumors in adult patients.The current emphasis is on imaging features,which are helpful not only for the initial diagnosis,but also for pre- and posttreatment evaluation and follow-up.In addition,future perspectives of contrast-enhanced ultrasound(CEUS) in pediatric patients are highlighted,with descriptions of enhancement patterns for each lesion being discussed.The role of advanced imaging tests such as CEUS and magnetic resonance imaging,which allow for non-invasive assessment of liver tumors,is of utmost importance in pediatric patients,especially when repeated imaging tests are needed and radiation exposure should be avoided. | Liliana Chiorean Xin-Wu Cui Andrea Tannapfel Doris Franke Martin Stenzel Wojciech Kosiak Dagmar Schreiber-Dietrich J?rg Jüngert Jian-Min Chang Christoph F Dietrich | 2015 | World Journal of Gastroenterology2015,21,28: | 16 |
| 7 | Comparison of the standard Euler-Euler and hybrid Euler-Lagrange approaches for modeling particle transport in a pilot-scale circulating fluidized bed显示文摘Particle transport phenomena in small-scale circulating fluidized beds(CFB) can be simulated using the Euler-Euler,discrete element method,and Euler-Lagrange approaches.In this work,a hybrid Euler-Lagrange model known as the dense discrete phase model(DDPM),which has common roots with the multiphase particle-in-cell model,was applied in simulating particle transport within a mid-sized experimental CFB facility.Implementation of the DDPM into the commercial ANSYS Fluent CFD package is relatively young in comparison with the granular Eulerian model.For that reason,validation of the DDPM approach against experimental data is still required and is addressed in this paper.Additional difficulties encountered in modeling fluidization processes are connected with long calculation times.To reduce times,the complete boiler models are simplified to include just the combustion chamber.Such simplifications introduce errors in the predicted solid distribution in the boiler.To investigate the consequences of model reduction,simulations were made using the simplified and complete pilot geometries and compared with experimental data.All simulations were performed using the ANSYSFLUENT 14.0 package.A set of user defined functions were used in the hybrid DDPM and Euler-Euler approaches to recirculate solid particles. | Wojciech P.Adamczyk Adam Klimanek Ryszard A.Biaecki Gabriel Wecel Pawe Kozolub Tomasz Czakiert | 2014 | Particuology2014,12,4: | 13 |
| 8 | Numerical simulation of a dense solid particle flow inside a cyclone separator using the hybrid Euler-Lagrange approach显示文摘 | Pawel Kozolub Adam Klimanek Ryszard A. Bialecki Wojciech P. Adamczyk | 2017 | Particuology2017,15,2: | 12 |
| 9 | Effect of NCPB and VSPL on pain and quality of life in chronic pancreatitis patients显示文摘AIM: To compare the effects of neurolytic celiac plexus block (NCPB) and videothoracoscopic splanchnicectomy (VSPL) on pain and quality of life of chronic pancreatitis (CP) patients.METHODS: Forty-eight small duct CP patients were treated invasively with NCPB (n = 30) or VSPL (n = 18) in two non-randomized, prospective, case-controlled protocols due to chronic pain syndrome, and compared to a control group who were treated conservatively (n = 32). Visual analog scales were used to assess pain and opioid consumption rate was evaluated. In addition, the quality of life was measured using QLQ C-30 for NCPB and FACIT for VSPL.Although both questionnaires covered similar problems,they could not be compared directly one with another.Therefore, the studies were compared by meta-analysis methodology.RESULTS: Both procedures resulted in a significant positive effect on pain of CP patients. Opioids were withdrawn totally in 47.0% of NCPB and 36.4% of VSPL patients,and reduced in 53.0% and 45.4% of the respective patient groups. No reduction in opioid usage was observed in the control group. In addition, fatigue and emotional well-being showed improvements. Finally, NCPB demonstrated stronger positive effects on social support, which might possibly be attributed to earlier presentation of patients treated with NCPB.CONCLUSION: Both invasive pain treatment methods are effective in CP patients with chronic pain. | Andrzej Basinski Tomasz Stefaniak Ad Vingerhoets Wojciech Makarewicz Lukasz Kaska Aleksander Stanek Andrzej J.Lachinski Zbigniew Sledzinski | 2005 | World Journal of Gastroenterology2005,11,32: | 10 |
| 10 | Modeling of particle transport and combustion phenomena in a large-scale circulating fluidized bed boiler using a hybrid Euler-Lagrange approach显示文摘The constantly developing fluidized combustion technology has become competitive with a conventional pulverized coal(PC) combustion.Circulating fluidized bed(CFB) boilers can be a good alternative to PC boilers due to their robustness and lower sensitivity to the fuel quality.However,appropriate engineering tools that can be used to model and optimize the construction and operating parameters of a CFB boiler still require development.This paper presents the application of a relatively novel hybrid Euler-Lagrange approach to model the dense gas-solid flow combined with a combustion process in a large-scale industrial CFB boiler.In this work,this complex flow has been resolved by applying the ANSYS FLUENT 14.0commercial computational fluid dynamics(CFD) code.To accurately resolve the multiphase flow,the original CFD code has been extended by additional user-defined functions.These functions were used to control the boiler mass load,particle recirculation process(simplified boiler geometry),and interphase hydrodynamic properties.This work was split into two parts.In the first part,which is referred to as pseudo combustion,the combustion process was not directly simulated.Instead,the effect of the chemical reactions was simulated by modifying the density of the continuous phase so that it corresponded to the mean temperature and composition of the flue gases.In this stage,the particle transport was simulated using the standard Euler-Euler and novel hybrid Euler-Lagrange approaches.The obtained results were compared against measured data,and both models were compared to each other.In the second part,the numerical model was enhanced by including the chemistry and physics of combustion.To the best of the authors' knowledge,the use of the hybrid Euler-Lagrange approach to model combustion is a new engineering application of this model.In this work,the combustion process was modeled for air-fuel combustion.The simulation results were compared with experimental data.The performed numerical simulations showed the applicability of the hybrid dense discrete phase model approach to model the combustion process in large-scale industrial CFB boilers. | Wojciech P.Adamczyk Gabriel Wecel Marcin Klajny Pawel Kozolub Adam Klimanek Ryszard A.Bialecki | 2014 | Particuology2014,12,5: | 7 |
| 11 | Oxidative stress factors in Parkinson's disease显示文摘Parkinson's disease(PD) is the second most common cause of neurodegeneration.Over the last two decades, various hypotheses have been proposed to explain the etiology of PD.Among these is the oxidant-antioxidant theory, which asserts that local and systemic oxidative damage triggered by reactive oxygen species and other free radicals may promote dopaminergic neuron degeneration.Excessive reactive oxygen species formation, one of the underlying causes of pathology in the course of PD has been evidenced by various studies showing that oxidized macromolecules including lipids, proteins, and nucleic acids accumulate in brain tissues of PD patients.DNA oxidation may produce various lesions in the course of PD.Mutations incurred as a result of DNA oxidation may further enhance reactive oxygen species production in the brains of PD patients, exacerbating neuronal loss due to defects in the mitochondrial electron transport chain, antioxidant depletion, and exposure to toxic oxidized dopamine.The protein products of SNCA, PRKN, PINK1, DJ1, and LRRK2 genes are associated with disrupted oxidoreductive homeostasis in PD.SNCA is the first gene linked with familial PD and is currently known to be affected by six mutations correlated with the disorder: A53T, A30P, E46K, G51D, H50Q and A53E.PRKN encodes Parkin, an E3 ubiquitin ligase which mediates the proteasome degradation of redundant and disordered proteins such as glycosylated α-synuclein.Over 100 mutations have been found among the 12 exons of PRKN.PINK1, a mitochondrial kinase highly expressed in the brain, may undergo loss of function mutations which constitute approximately 1–8% of early onset PD cases.More than 50 PD-promoting mutations have been found in PINK1.Mutations in DJ-1, a neuroprotective protein, are a rare cause of early onset PD and constitute only 1% of cases.Around 20 mutations have been found in DJ1 among PD patients thus far.Mutations in the LRRK2 gene are the most common known cause of familial autosomal dominant PD and sporadic PD.Treatment of PD patients, especially in the advanced stages of the disease, is very difficult.The first step in managing progressive PD is to optimize dopaminergic therapy by increasing the doses of dopamine agonists and L-dopa.The next step is the introduction of advanced therapies, such as deep brain stimulation.Genetic factors may influence the response to L-dopa and deep brain stimulation therapy and the regulation of oxidative stress.Consequently, research into minimally invasive surgical interventions, as well as therapies that target the underlying etiology of PD is warranted. | Jolanta Dorszewska Marta Kowalska Michał Prendecki Thomas Piekut Joanna Kozłowska Wojciech Kozubski | 2021 | Neural Regeneration Research2021,16,7: | 7 |
| 12 | Serum concentration of sFas and sFasL in healthy HBsAg carriers,chronic viral hepatitis B and C patients显示文摘AIM: To estimate the amount of apoptosis among healthy HBsAg carriers, patients with chronic HBV infection treated with lamivudine and patients with chronic HCV infedJon treated with interferon alpha and ribavirin. Activity of apoptosis was evaluated by serum sFas/sFasL concentration measurement.Moreover dependence between apoptosis and HBV-DNA or HCV-RNA levels was studied.METHODS: Eighty-six persons were included into study: 34 healthy HBsAg carriers, 33 patients with chronic HBV infection and 19 patients with chronic HCV infection. Serum levels of sFas/sFasL were measured by ELISA assay. HBV-DNA and HCV-RNA were measured by RT-PCR assay. Levels of sFas/sFasL were determined before and 2 and 12 wk after therapy in patients with chronic hepatitis B and C infection.HBV-DNA or HCV-RNA was detected before treatment and 6 mo after treatment.RFSULTS: Twenty-four (71%) healthy HBsAg carriers showed HBV-DNA over 10^5/mL, which was comparable to the patients with chronic hepatitis B. Independently from HBV-DNA levels,the concentration of sFas among healthy HBsAg carriers was comparable to healthy persons. Among patients with chronic hepatitis B and C, the concentration of sFas was significantly higher in comparison to healthy HBsAg carriers and healthy persons. In chronic hepatitis B patients the concentration of sFas was decreased during lamivudine treatment. Among chronic hepatitis C patients the concentration of sFas was increased during IFN alpha and ribavirin treatment, sFasL was not detected in control group. Furthermore sFasL oo:urred more frequently in chronic hepatitis C patients in comparison to chronic hepatitis B patients.CONCLUSION: There are no correlations between apoptosis and HBV-DNA levels. However ther is an association between apoptosis and activity of inflammation in patients with chronic HBV infection. Apoptosis can be increased in patients with chronic hepatitis C by effective treatment which may be a result of apoptosis stimulation by IFN-α. | Tadeusz Wojciech Lapinski Oksana Kowalczuk Danuta Prokopowicz Lech Chyczewski | 2004 | World Journal of Gastroenterology2004,10,24: | 7 |
| 13 | 袖状胃切除术十联合二指肠回肠Ω转位:一种新型的复合型减肥外科术式显示文摘目的:探讨分阶段实施腹腔镜袖状胃切除术(LSG)及十二指肠回肠Ω转位术(DIOS)对于外科治疗病态肥胖症的可行性和意义。方法:对2012年收治的病态肥胖合并合并2型糖尿病、高血脂女性患者1例,分阶段于同年4月13日实施LSG,随访11个月后于2013年3月12日实施DIOS,分析其手术前后肥胖与相关指标的变化及并发症情况。结果:患者LSG术前、DIOS术前、随访2年,体质量指数(47.6、42.3、31.0 kg/m^2)、体质量(140、125、92 kg)、糖化血红蛋白水平(6.3%、5.7%、5.0%),血甘油三酯水平(2.54、1.87、1.26 g/L),总胆固醇水平(2.42、1.89、1.68 g/L)均呈下降表现,且随访2年时患者完全脱离降糖药物治疗。围术期及术后2年内,未发现吻合口瘘、营养不良、脱发、倾倒综合征及胆汁反流等近、远期并发症。结论:LSG联合DIOS具备分阶式减肥组合术式特性,有望在临床上开展。 | 周程 龚昭 闵凯 曾志武 杨光耀 夏辉 Wojciech Konrad Karcz | 2015 | 中国普通外科杂志2015,24,12: | 6 |
| 14 | Molecular alterations in gastric cancer with special reference to the early-onset subtype显示文摘Currently, gastric cancer(GC) is one of the most frequently diagnosed neoplasms, with a global burden of 723000 deaths in 2012. It is the third leading cause of cancer-related death worldwide. There are numerous possible factors that stimulate the procarcinogenic activity of important genes. These factors include genetic susceptibility expressed in a singlenucleotide polymorphism, various acquired mutations(chromosomal instability, microsatellite instability, somatic gene mutations, epigenetic alterations) and environmental circumstances(e.g., helicobcter pylori infection, EBV infection, diet, and smoking). Most of the aforementioned pathways overlap, and authors agree that a clear-cut pathway for GC may not exist. Thus, the categorization of carcinogenic events is complicated. Lately, it has been claimed that research on early-onset gastric carcinoma(EOGC) and hereditary GC may contribute towards unravelling some part of the mystery of the GC molecular pattern because young patients are less exposed to environmental carcinogens and because carcinogenesis in this setting may be more dependent on genetic factors. The comparison of various aspects that differ and coexist in EOGCs and conventional GCs might enable scientists to: distinguish which features in the pathway of gastric carcinogenesisare modifiable, discover specific GC markers and identify a specific target. This review provides a summary of the data published thus far concerning the molecular characteristics of GC and highlights the outstanding features of EOGC. | Malgorzata Skierucha Anya NA Milne G Johan A Offerhaus Wojciech P Polkowski Ryszard Maciejewski Robert Sitarz | 2016 | World Journal of Gastroenterology2016,22,8: | 6 |
| 15 | 机械动态对PCB钻孔的影响显示文摘在合适的稳定条件下,在大多数材料下机械钻孔可以形成0.08mm(0.003")的孔径,关键是如何掌握和改进机械振动特性. | Wojciech Kosmowski 丁志廉 | 2002 | 印制电路信息2002,,8: | 5 |
| 16 | Liver transplantation for metastatic neuroendocrine tumor: A case report and review of the literature显示文摘Neuroendocrine tumors are divided into gastrointestinal carcinoids and pancreatic neuroendocrine tumors. The WHO has updated the classification of these lesions and has abandoned the term 'carcinoid'. Both types of tumors are divided into functional and non-functional tumors. They are characterized by slow growth and frequent metastasis to the liver and may be limited to the liver for long periods. The therapeutic approach to hepatic metastases should consider the number and distribution of the liver metastases as well as the severity of symptoms related to hormone production and tumor bulk. Surgery is generally considered as the first line therapy. In patients with unresectable liver metastases,alternative treatments are dependent on the type and the growth rate. Initial treatments consist of long acting somatostatin analogs and/or interferon. Streptozocinbased chemotherapy is usually reserved for symptomatic patients with rapidly advancing disease, but generally the therapy is poorly tolerated and its effects are short-lived.Locoregional therapy directed such as hepatic-artery embolization and chemoembolization, radiofrequency thermal ablation and cryosurgery, is often used instead of systemic therapy, if the disease is limited to the liver.However, liver transplantation should be considered in patients with neuroendocrine metastases to the liver that are not accessible to curative or cytoreductive surgery and if medical or locoregional treatment has failed and if there are life threatening hormonal symptoms. We report a case of liver transplantation for metastatic neuroendocrine tumor of unknown primary source and provide a detailed review of the world literature on this controversial topic. | Wojciech C Blonski K Rajender Reddy Abraham Shaked Evan Siegelman David C Metz | 2005 | World Journal of Gastroenterology2005,11,48: | 5 |
| 17 | Gastroenterostoma after Billroth antrectomy as a premalignant condition显示文摘Gastric stump carcinoma(GSC) following remote gastric surgery is widely recognized as a separate entity within the group of various types of gastric cancer.Gastrectomy is a well established risk factor for the development of GSC at a long time after the initial surgery.Both exoas well as endogenous factors appear to be involved in the etiopathogenesis of GSC,such as achlorhydria,hypergastrinemia and biliary reflux,Epstein-Barr virus and Helicobacter pylori infection,atrophic gastritis,and also some polymorphisms in interleukin-1 and maybe cyclo-oxygenase-2.This review summarizes the literature of GSC,with special reference to reliable early diagnostics.In particular,dysplasia can be considered as a dependable morphological marker.Therefore,close endoscopic surveillance with multiple biopsies of the gastroenterostomy is recommended.Screening starting at 15 years after the initial ulcer surgery can detect tumors at a curable stage.This approach can be ofspecial interest in Eastern European countries,where surgery for benign gastroduodenal ulcers has remained a practice for a much longer time than in Western Europe,and therefore GSC is found with higher frequency. | Robert Sitarz Ryszard Maciejewski Wojciech P Polkowski G Johan A Offerhaus | 2012 | World Journal of Gastroenterology2012,18,25: | 5 |
| 18 | Laparoscopy-assisted percutaneous endoscopic gastrostomy enables enteral nutrition even in patients with distorted anatomy显示文摘AIM:To analyzed whether laparoscopy-assisted percutaneous endoscopic gastrostomy(PEG)could be a valuable option for patients with complicated anatomy.METHODS:A retrospective analysis of twelve patients(seven females,five males;six children,six young adults;mean age 19.2 years)with cerebral palsy,spastic quadriparesis,severe kyphoscoliosis and interposed organs and who required enteral nutrition(EN)due to starvation was performed.For all patients,standard PEG placement was impossible due to distorted anatomy.All the patients qualified for the laparoscopyassisted PEG procedure.RESULTS:In all twelve patients,the laparoscopy-assisted PEG was successful,and EN was introduced four to six hours after the PEG placement.There were no complications in the perioperative period,either technical or metabolic.All the patients were discharged from the hospital and were then effectively fed using bolus methods.CONCLUSION:Laparoscopy-assisted PEG should become the method of choice for gastrostomy tube placement and subsequent EN if PEG placement cannot be performed safely. | Adam Hermanowicz Ewa Matuszczak Marta Komarowska Elzbieta Jarocka-Cyrta Jerzy Wojnar Wojciech Debek Konrad Matysiak Stanislaw Klek | 2013 | World Journal of Gastroenterology2013,19,43: | 5 |
| 19 | Approximative compactness and continuity of metric projector in Banach spaces and applications显示文摘First we prove that the approximative compactness of a nonempty set C in a normed linear space can be reformulated equivalently in another way.It is known that if C is a semi-Chebyshev closed and approximately compact set in a Banach space X,then the metric projectorπC from X onto C is continuous.Under the assumption that X is midpoint locally uniformly rotund,we prove that the approximative compactness of C is also necessary for the continuity of the projectorπC by the method of geometry of Banach spaces.Using this general result we find some necessary and sufficient conditions for T to have a continuous Moore-Penrose metric generalized inverse T^+,where T is a bounded linear operator from an approximative compact and a rotund Banach space X into a midpoint locally uniformly rotund Banach space Y. | HUDZIK Henryk KOWALEWSKI Wojciech WISLA Marek | 2008 | Science China Mathematics2008,51,2: | 5 |
| 20 | Non-pulmonary allergic diseases and inflammatory bowel disease: A qualitative review显示文摘While the etiological underpinnings of inflammatory bowel disease(IBD) are highly complex, it has been not-ed that both clinical and pathophysiological similarities exist between IBD and both asthma and non-pulmonary allergic phenomena. In this review, several key points on common biomarkers, pathophysiology, clinical manifesta-tions and nutritional and probiotic interventions for both IBD and non-pulmonary allergic diseases are discussed.Histamine and mast cell activity show common behav-iors in both IBD and in certain allergic disorders. IgE also represents a key immunoglobulin involved in both IBD and in certain allergic pathologies, though these links require further study. Probiotics remain a critically important intervention for both IBD subtypes as well as multiple allergic phenomena. Linked clinical phenomena, especially sinonasal disease and IBD, are discussed. In addition, nutritional interventions remain an underuti-lized and promising therapy for modification of both al-lergic disorders and IBD. Recommending new mothers breastfeed their infants, and increasing the duration of breastfeeding may also help prevent both IBD and al-lergic diseases, but requires more investigation. While much remains to be discovered, it is clear that non-pulmonary allergic phenomena are connected to IBD in a myriad number of ways and that the discovery of com-mon immunological pathways may usher in an era of vastly improved treatments for patients. | David S Kotlyar Mili Shum Jennifer Hsieh Wojciech Blonski David A Greenwald | 2014 | World Journal of Gastroenterology2014,20,32: | 5 |