|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | From fatty liver to fibrosis:A tale of “second hit”显示文摘Although much is known about how fat accumulates in the liver,much remains unknown about how this causes sustained hepatocellular injury.The consequences of injury are recognized as nonalcoholic steatohepatitis(NASH) and progressive fibrosis.The accumulation of fat within the hepatocytes sensitizes the liver to injury from a variety of causes and the regenerative capacity of a fatty liver is impaired.An additional stressor is sometimes referred to as a 'second hit' in a paradigm that identifies the accumulation of fat as the 'first hit'.Possible candidates for the second hit include increased oxidative stress,lipid peroxidation and release of toxic products such as malondialdehyde and 4-hydroxynonenal,decreased antioxidants,adipocytokines,transforming growth factor(TGF)-β,Fas ligand,mitochondrial dysfunction,fatty acid oxidation by CYPs(CYP 2E1,4A10 and 4A14),and peroxisomes,excess iron,small intestinal bacterial overgrowth,and the generation of gut-derived toxins such as lipopolysaccharide and ethanol.Oxidative stress is one of the most popular proposed mechanisms of hepatocellular injury.Previous studies have specifically observed increased plasma and tissue levels of oxidative stress markers and lipid peroxidation products,with reduced hepatic and plasma levels of antioxidants.There is also some indirect evidence of the benefit of antioxidants such as vitamin E,S-adenosylmethionine,betaine,phlebotomy to remove iron,and N-acetylcysteine in NASH.However,a causal relationship or a pathogenic link between NASH and oxidative stress has not been established so far.A number of sources of increased reactive oxygen species production have been established in NASH that include proinflammatory cytokines such as tumor necrosis factor(TNF)-α,iron overload,overburdened and dysfunctional mitochondria,CYPs,and peroxisomes.Briefly,the pathogenesis of NASH is multifactorial and excess intracellular fatty acids,oxidant stress,ATP depletion,and mitochondrial dysfunction are important causes of hepatocellular injury in the steatotic liver. | Metin Basaranoglu Gkcen Basaranoglu Hakan Sentürk | 2013 | World Journal of Gastroenterology2013，19，8： | 28 |
| 2 | The ReaxFF reactive force-field: development, applications and future directions显示文摘The reactive force-field(ReaxFF)interatomic potential is a powerful computational tool for exploring,developing and optimizing material properties.Methods based on the principles of quantum mechanics(QM),while offering valuable theoretical guidance at the electronic level,are often too computationally intense for simulations that consider the full dynamic evolution of a system.Alternatively,empirical interatomic potentials that are based on classical principles require significantly fewer computational resources,which enables simulations to better describe dynamic processes over longer timeframes and on larger scales.Such methods,however,typically require a predefined connectivity between atoms,precluding simulations that involve reactive events.The ReaxFF method was developed to help bridge this gap.Approaching the gap from the classical side,ReaxFF casts the empirical interatomic potential within a bond-order formalism,thus implicitly describing chemical bonding without expensive QM calculations.This article provides an overview of the development,application,and future directions of the ReaxFF method. | Thomas P Senftle Sungwook Hong Md Mahbubul Islam Sudhir B Kylasa Yuanxia Zheng Yun Kyung Shin Chad Junkermeier Roman Engel-Herbert Michael J Janik Hasan Metin Aktulga Toon Verstraelen Ananth Grama Adri CT van Duin | 2016 | npj Computational Materials2016，，1： | 22 |
| 3 | A Biomimetic Climbing Robot Based on the Gecko显示文摘The excellent climbing performance of the gecko is inspiring engineers and researchers for the design of artificial systems aimed at moving on vertical surfaces. Climbing robots could perform many useful tasks such as surveillance, inspection, repair, cleaning, and exploration. This paper presents and discusses the design, fabrication, and evaluation of two climbing robots which mimic the gait of the gecko. The first robot is designed considering macro-scale operations on Earth and in space. The second robot, whose motion is controlled using shape memory alloy actuators, is designed to be easily scaled down for micro-scale applications. Proposed bionic systems can climb up 65 degree slopes at a speed of 20 mm·s?1. | Carlo Menon Metin Sitti | 2006 | Journal of Bionic Engineering2006，3，3： | 18 |
| 4 | Minimally invasive surgery for gastric cancer: A comparison between robotic, laparoscopic and open surgery显示文摘AIM To investigate the role of minimally invasive surgery for gastric cancer and determine surgical, clinical, and oncological outcomes.METHODS This is a propensity score-matched case-control study, comparing three treatment arms: robotic gastrectomy(RG), laparoscopic gastrectomy(LG), open gastrectomy(OG). Data collection started after sharing a specific study protocol. Data were recorded through a tailored and protected web-based system. Primary outcomes: harvested lymph nodes, estimated blood loss, hospital stay, complications rate. Among the secondary outcomes, there are: operative time, R0 resections, POD of mobilization, POD of starting liquid diet and soft solid diet. The analysis includes the evaluation of type and grade of postoperative complications. Detailed information of anastomotic leakages is also provided.RESULTS The present analysis was carried out of 1026 gastrectomies. To guarantee homogenous distribution of cases, patients in the RG, LG and OG groups were 1:1:2 matched using a propensity score analysis with a caliper = 0.2. The successful matching resulted in a total sample of 604 patients(RG = 151; LG = 151; OG = 302). The three groups showed no differences in all baseline patients characteristics, type of surgery(P = 0.42) and stage of the disease(P = 0.16). Intraoperative blood loss was significantly lower in the LG(95.93 ± 119.22) and RG(117.91 ± 68.11) groups compared to the OG(127.26 ± 79.50, P = 0.002). The mean number of retrieved lymph nodes was similar between the RG(27.78 ± 11.45), LG(24.58 ± 13.56) and OG(25.82 ± 12.07) approach. A benefit in favor of the minimally invasive approaches was found in the length of hospital stay(P < 0.0001). A similar complications rate was found(P = 0.13). The leakage rate was not different(P = 0.78) between groups.CONCLUSION Laparoscopic and robotic surgery can be safely performed and proposed as possible alternative to open surgery. The main highlighted benefit is a faster postoperative functional recovery. | Amilcare Parisi Daniel Reim Felice Borghi Ninh T Nguyen Feng Qi Andrea Coratti Fabio Cianchi Maurizio Cesari Francesca Bazzocchi Orhan Alimoglu Johan Gagnière Graziano Pernazza Simone D'Imporzano Yan-Bing Zhou Juan-Santiago Azagra Olivier Facy Steven T Brower Zhi-Wei Jiang Lu Zang Arda Isik Alessandro Gemini Stefano Trastulli Alexander Novotny Alessandra Marano Tong Liu Mario Annecchiarico Benedetta Badii Giacomo Arcuri Andrea Avanzolini Metin Leblebici Denis Pezet Shou-Gen Cao Martine Goergen Shu Zhang Giorgio Palazzini Vito D'Andrea Jacopo Desiderio | 2017 | World Journal of Gastroenterology2017，23，13： | 17 |
| 5 | Ni/Pd core/shell nanoparticles supported on graphene as a highly active and reusable catalyst for Suzuki- Miyaura cross-coupling reaction显示文摘 | Onder Metin Sally Fae Ho Cemalettin Alp Hasan Can Max N. Mankin Mehmet Serdar Gueltekin Miaofang Chi Shouheng Sun | 2013 | Nano Research2013，6，1： | 15 |
| 6 | Understanding mechanisms of the pathogenesis of nonalcoholic fatty liver disease显示文摘A central issue in the understanding of the pathogenesis of nonalcoholic fatty liver disease is the problem of the underlying mechanisms which are not fully understood.In the setting of excessive central adiposity,insulin resistance is the major underlying cause of fat accumulation in hepatocytes.Because of the difficulties with human trials,several animal models have been developed for this purpose mainly characterized as follows:genetically disturbed or murine fatty liver,methionine-choline deficient diet fed or murine steatohepatitis,and high-fat or sucrose diet fed models.Although these animal models have provided useful information,none of them accurately reflect genetic,metabolic and biochemical characteristics of the human disease. | Metin Basaranoglu Serra Kayacetin Nevin Yilmaz Ertugrul Kayacetin Orhan Tarcin Abdullah Sonsuz | 2010 | World Journal of Gastroenterology2010，16，18： | 14 |
| 7 | Long-term vision-threatening complications of phakic intraocular lens implantation for high myopia显示文摘AIM:To report the long-term vision-threatening complications in patients who underwent phakic intraocular lens(pIOLs)implantation for high myopia.METHODS:Thisstudywasdesignedfromaconsecutive series of phakic intraocular lens complication and corrective surgeries.Sixteen eyes of 13 patients had implantation of phakic intraocular lens for correction high myopia and developed serious complications have been included in this study.The mean age of patients was 38.6±6.35y(range 32-50y)and the mean time of history of pIOL implantation for high myopia was 6±2y(range 2-10y).Before corrective surgery,best spectaclecorrective visual acuity(BSCVA)ranged from perception to 20/200 in the eyes in which severe complications occurred.RESULTS:Corneal decompensation occurred in 12eyes of 9 high myopic patients after anterior chamber pIOL implantation.Rhegmatogenous retinal detachment(RRD)occurred in 4 eyes of 4 high myopic patients following anterior chamber and posterior chamber pIOL implantation.Patients with corneal decompensation,had combined procedures consisting of pIOL removal and penetrating keratoplasty(PKP).Removals of pIOL,phacoemulsification and pars plana vitrectomy(PPV)with silicone oil tamponade were performed in patients with RRD.After corrective surgeries,all patients but one(P+,patient 2,right eye)achieved moderate BSCVA ranged from 20/200 to 20/50 at the last visit.CONCLUSION:Phakic IOLs may be effective for thecorrection of high myopia.Although these IOLs may have severe complications and it affects safety and efficacy of this surgery.As seen here,corneal decompensation and rhegmatogenous retinal detachment are possible postoperative vision-threatening complications of phakic IOLs.Patients must be carefully examined before and after surgery for possible endothelial cell loss and vitreoretinal problems. | Isil Bahar Sayman Muslubas Baran Kandemir Ayse Yesim Aydin Oral Suleyman Kugu Metin Dastan | 2014 | International Journal of Ophthalmology(English edition)2014，7，2： | 14 |
| 8 | Fructose as a key player in the development of fatty liver disease显示文摘We aimed to investigate whether increased consumption of fructose is linked to the increased prevalence of fatty liver.The prevalence of nonalcoholic steatohepatitis(NASH) is 3% and 20% in nonobese and obese subjects,respectively.Obesity is a low-grade chronic inflam-m-atory condition and obesity-related cytokines such as interleukin-6,adiponectin,leptin,and tumor necrosis factor-α may play important roles in the developm-ent of nonalcoholic fatty liver disease(NAFLD).Additionally,the prevalence of NASH associated with both cirrhosis and hepatocellular carcinom-a was reported to be high am-ong patients with type 2 diabetes with or without obesity.Our research group previously showed that consumption of fructose is associated with adverse alterations of plasma lipid profiles and metabolic changes in m-ice,the Am-erican Lifestyle-Induced Obesity Syndrom-e m-odel,which included consum-ption of a high-fructose corn syrup in amounts relevant to that consum-ed by som-e Am-ericans.The observation reinforces the concerns about the role of fructose in the obesity epidem-ic.Increased availability of fructose(e.g.,high-fructose corn syrup) increases not only abnorm-al glucose flux but also fructose m-etabolism-in the hepatocyte.Thus,the anatomic position of the liver places it in a strategic buffering position for absorbed carbohydrates and am-ino acids.Fructose was previously accepted as a beneficial dietary com-ponent because it does not stim-ulate insulin secretion.However,since insulin signaling plays an important role in central m-echanism-s of NAFLD,this property of fructose m-ay be undesirable.Fructose has a selective hepatic m-etabolism,and provokes a hepatic stress response involving activation of c-Jun N-term-inal kinases and subsequent reduced hepatic insulin signaling.As high fat diet alone produces obesity,insulin resistance,and som-e degree of fatty liver with m-inim-al inflam-m-ation and no fibrosis,the fast food diet which includes fructose and fats produces a gene expression signature of increased hepatic fibrosis,inflam-m-ation,endoplasm-ic reticulumstress and lipoapoptosis.Hepatic de novo lipogenesis(fatty acid and triglyceride synthesis) is increased in patients with NAFLD.Stable-isotope studies showed that increased de novo lipogenesis(DNL) in patients with NAFLD contributed to fat accum-ulation in the liver and the developm-ent of NAFLD.Specifically,DNL was responsible for 26% of accum-ulated hepatic triglycerides and 15%-23% of secreted very low-density lipoprotein triglycerides in patients with NAFLD com-pared to an estim-ated less than 5% DNL in healthy subjects and 10% DNL in obese people with hyperinsulinem-ia.In conclusion,understanding the underlying causes of NAFLD form-s the basis for rational preventive and treatm-ent strategies of this m-ajor form-of chronic liver disease. | Metin Basaranoglu Gokcen Basaranoglu Tevfik Sabuncu Hakan Sentürk | 2013 | World Journal of Gastroenterology2013，19，8： | 14 |
| 9 | Increased levels of homocysteine in patients with ulcerative colitis显示文摘AIM: To investigate serum levels of homocysteine (Hcys) and the risk that altered levels carry for thrombosis development in ulcerative colitis (UC) patients. METHODS: 55 UC patients and 45 healthy adults were included. Hcys, vitamin B12 and folic acid levels were measured in both groups. Clinical history and thrombo- embolic events were investigated. RESULTS: The average Hcys level in the UC patients was 13.3 ± 1.93 μmmol/L (range 4.60-87) and was higher than the average Hcys level of the control group which was 11.2 ± 3.58 μmmol/L (range 4.00-20.8) (P < 0.001). Vitamin B12 and folic acid average values were also lower in the UC group (P < 0.001). Whenmultivariate regression analysis was performed, it was seen that folic acid deficiency was the only risk factor for hyperhomocysteinemia. Frequencies of thromboembolic complications were not statistically significantly different in UC and control groups. When those with and without a thrombosis history in the UC group were compared according to Hcys levels, it was seen that there were no statistically significant differences. A negative linear relationship was found between folic acid levels and Hcys. CONCLUSION: We could not find any correlations between Hcys levels and history of prior thromboembolic events. | Sabiye Akbulut Emin Altiparmak Firdevs Topal Ersan Ozaslan Metin Kucukazman Ozlem Yonem | 2010 | World Journal of Gastroenterology2010，16，19： | 13 |
| 10 | Prognostic efficacy of inflammation-based markers in patients with curative colorectal cancer resection显示文摘AIM To evaluate the prognostic significance of neutrophilto-lymphocyte ratio(NLR), platelet-to-lymphocyte ratio(PLR), lymphocyte-to-monocyte ratio(LMR), and prognostic nutritional index(PNI) and other clinicopathological factors in patients undergoing curative resection of colon cancer.METHODS183 patients with histologically proven colorectal cancer who had undergone potentially curative resection between 2010 and 2016 at Ankara Numune Training and Research Hospital were retrospectively analyzed and clinicopathological characteristics included age, sex, tumor type, grade, size and localization, the number of metastatic and total number of lymph nodes removed, vascular and perineural invasion of the tumor, TNM stages, tumor marker levels(CEA, CA19-9, AFP, CA-125, CA15-3), complete blood counts, albumin levels, overall survival(months), NLR, PLR, LMR and PNI ratios were retrospectively reviewed and analyzed from the electronic database. The primary outcome measure was overall survival.RESULTS Regarding overall survival, on univariate analysis the following variables were significantly associated with poor outcome following resection: T-stage(P = 0.037), lymph node invasion(P = 0.037), cancer stage(P = 0.034), CEA(P = 0.042), CA19-9(P = 0.004), and PNI(P = 0.001). To evaluate the independent prognostic value, multivariate Cox proportional hazard analysis to control for other prognostic factors was used. Using cancer-specific death as an end point for NLR, PLR, LMR, PNI and CA19-9 the optimal cut off values were calculated by ROC analysis. Regarding overall survival, on multivariate analysis high CA19-9(HR = 1.001, 95%CI: 1.00-1.002, P = 0.012) and low PNI(HR = 0.938, 95%CI: 0.891-0.987, P = 0.014) were the only variables independently associated with shortened overall survival. Patients with a PNI < 35 had a median OS of 52.25 mo. In contrast, patients with an PNI > 35 had a median OS of 66 mo. Patients with a CA 19-9 < 17 had a median OS of 66 mo and in patients with a CA19-9 > 17 had a median OS of 53.76 mo.CONCLUSION This study shows that decrease in the PNI and increase in CA 19-9 is associated with poor survival in patients with resectable colon cancer. | özgür Akgül Erdinc Cetinkaya Metin Yalaza Sabri özden Mesut Tez | 2017 | World Journal of Gastrointestinal Oncology2017，9，7： | 11 |
| 11 | Synergistic effect of multiple predisposing risk factors on the development of bezoars显示文摘AIM:To describe the clinical characteristics of patients with gastric or intestinal bezoars recently treated in our hospital.METHODS:In this study,a retrospective chart review of consecutive patients with gastrointestinal bezoars,who were treated at the Samsun Education and Research Hospital between January 2006 and March 2011,was conducted.Data on demographic characteristics,clinical presentation,history of risk factors,diagnostic procedures,localization of bezoars,treatment interventions,and postoperative morbidity and mortality rates were collected and evaluated.RESULTS:Forty-two patients [26 (61.9%) males and 16 (31.1%) females] with a mean±SD (range) age of 55.8±10.5 (37-74) years were enrolled in this study.Thirty-six patients (85.7%) had one or more predisposing risk factors for gastrointestinal bezoars.The most common predisposing risk factor was a history of previous gastric surgery which was identified in 18 patients (42.8%).Twenty three patients (54.8%) had multiple predisposing risk factors.Phytobezoars were identified in all patients except one who had a trichobezoar in the stomach.Non-operative endoscopic fragmentation was performed either initially or after unsuccessful medical treatment in 14 patients with gastric bezoars and was completely successful in 10 patients (71.5%).Surgery was the most frequent treatment method in our study,which was required in 28 patients (66.7%).Intestinal obstruction secondary to bezoars was the most common complication (n=18,42.8%) in our study.CONCLUSION:The presence of multiple predisposing factors may create a synergistic effect in the development of bezoars. | Metin Kement Nuraydin Ozlem Elif Colak Sadik Kesmer Cem Gezen Selahattin Vural | 2012 | World Journal of Gastroenterology2012，18，9： | 11 |
| 12 | Monodisperse Nickel Nanoparticles Supported on SiO_(2) as an Effective Catalyst for the Hydrolysis of Ammonia-Borane显示文摘Monodisperse Ni nanoparticles(NPs)have been synthesized by the reduction of nickel(Ⅱ)acetylacetonate with the borane–tributylamine complex in a mixture of oleylamine and oleic acid.These Ni NPs are an active catalyst for the hydrolysis of the ammonia–borane(AB,H3N⋅BH3)complex under ambient conditions and their activities are dependent on the chemical nature of the oxide support that they were deposited on.Among various oxides(SiO_(2),Al_(2)O_(3),and CeO_(2))tested,SiO_(2)was found to enhance Ni NP catalytic activity due to the etching of the 3.2 nm Ni NPs giving Ni(Ⅱ)ions and the subsequent reduction of Ni(Ⅱ)that led to the formation of 1.6 nm Ni NPs on the SiO_(2)surface.The kinetics of the hydrolysis of AB catalyzed by Ni/SiO_(2)was shown to be dependent on catalyst and substrate concentration as well as temperature.The Ni/SiO_(2)catalyst has a turnover frequency(TOF)of 13.2 mol H_(2)⋅(mol Ni)^(–1)⋅min^(–1)—the best ever reported for the hydrolysis of AB using a nickel catalyst,an activation energy of 34 kJ/mol±2 kJ/mol and a total turnover number of 15,400 in the hydrolysis of AB.It is a promising candidate to replace noble metals for catalyzing AB hydrolysis and for hydrogen generation under ambient conditions. | Önder Metin SaimÖzkar Shouheng Sun | 2010 | Nano Research2010，3，9： | 9 |
| 13 | Pathophysiology of insulin resistance and steatosis in patients with chronic viral hepatitis显示文摘Chronic hepatitis due to any cause leads to cirrhosis and end-stage liver disease.A growing body of literature has also shown that fatty liver due to overweight or obesity is a leading cause of cirrhosis.Due to the obesity epidemic,fatty liver is now a significant problem in clinical practice.Steatosis has an impact on the acceleration of liver damage in patients with chronic hepatitis due to other causes.An association between hepatitis C virus (HCV) infection,steatosis and the onset of insulin resistance has been reported.Insulin resistance is one of the leading factors for severe fibrosis in chronic HCV infections.Moreover,hyperinsulinemia has a deleterious effect on the management of chronic HCV.Response to therapy is increased by decreasing insulin resistance by weight loss or the use of thiazolidenediones or metformin.The underlying mechanisms of this complex interaction are not fully understood.A direct cytopathic effect of HCV has been suggested.The genomic structure of HCV (suggesting that some viral sequences are involved in the intracellular accumulation of triglycerides),lipid metabolism,the molecular links between the HCV core protein and lipid droplets (the core protein of HCV and its transcriptional regulatory function which induce a triglyceride accumulation in hepatocytes) and increased neolipogenesis and inhibited fatty acid degradation in mitochondria have been investigated. | Metin Basaranoglu Gkcen Basaranoglu | 2011 | World Journal of Gastroenterology2011，17，36： | 8 |
| 14 | Pseudolymphoma (reactive lymphoid hyperplasia) of the liver:A clinical challenge显示文摘Reactive lymphoid hyperplasia(RLH), also known as pseudolymphoma or nodular lymphoid lesion of the liver is an extremely rare condition, and only 51 hepatic RLH cases have been described in the literature since the first case was described in 1981. The majority of these cases were asymptomatic and incidentally found through radiological imaging. The precise etiology of hepatic RLH is still unknown, but relative high prevalence of autoimmune disorder in these cases suggests an immune-based liver disorder. Imaging features of hepatic RLH often suggest malignant lesions such as hepatocellular carcinoma and cholangiocarcinoma. In this report, we discuss two cases of hepatic RLH in patients with autoimmune hepatitis. We also present pathologic and magnetic resonance imaging findings, including one case utilizing a hepatocellular contrast agent, Eovist. Definitive diagnosis of hepatic RLH often requires surgical excision. | Yong Kyong Kwon Reena C Jha Kambiz Etesami Thomas M Fishbein Metin Ozdemirli Chirag S Desai | 2015 | World Journal of Hepatology2015，7，26： | 8 |
| 15 | Neuroprotective effect of systemic and/or intravitreal rosuvastatin administration in rat glaucoma model显示文摘AIM:To evaluate the neuroprotective effect of rosuvastatin,in a rat experimental glaucoma model.· METHODS:Ocular hypertension was induced in right eyes of Long-Evans rats(n=30) by cauterization of three episcleral veins.Left eyes were defined as controls.Rats were divided into five groups:oral rosuvastatin,intravitreal rosuvastatin,oral +intravitreal rosuvastatin,intravitreal sham and glaucoma without intervention.Rats were sacrificed at day 14.Retinal ganglion cell(RGC) number was assessed by histopathological analysis.Terminal deoxynucleotidyl transferase-mediated dUTP-nick end-labeling(TUNEL) staining and the expression of glial fibrillary acidic protein(GFAP) in RGC layer was also examined.· RESULTS:A significant intraocular pressure(IOP)elevation was seen(P=0.002).Elevated IOP resulted in a significant decrease in number of RGCs in group 5(70.33±8.2 cells/mm^2) when compared with controls(92.50±13.72 cells/mm^2;P=0.03).The RGC number in group 1(92.4±7.3 cells/mm^2) was significantly higher than group 5(P=0.03).The numbers of RGC in groups 2,3(57.3±8.2 cells/mm^2,60.5±12.9 cells/mm^2) were comparable with that of group 5(P=0.18 and P=0.31).The apoptosis rates with TUNEL staining were also parallel to RGC number.Animals with experimentally induced glaucoma showed an increase in retinal GFAP immunoreactivity.· CONCLUSION:Decrease in RGC loss and apoptosis suggest the neuroprotective potential of oral rosuvastatin treatment in a rat model of ocular hypertension.However intravitreal rosuvastatin showed a contrary effect and further studies are required. | Metin Unlu Zeynep Aktas Pinar Uyar Gocun Sevil Ozger Ilhan Murat Hasanreisoglu Berati Hasanreisoglu | 2016 | International Journal of Ophthalmology(English edition)2016，9，3： | 7 |
| 16 | Neutrophil-lymphocyte ratio is useful for the prognosis of patients with hepatocellular carcinoma显示文摘There is increasing evidence that neutrophil-lymphocyte ratio(NLR)may play a role in predicting recurrence in patients with hepatitis B virus-related hepatocellular carcinoma(HCC)after liver transplantation.In the original study by Yan et al,it was aimed to determine whether an elevated NLR is associated with tumor recurrence.Total tumor size(>9 cm)and macro-vascular invasion were found to be more significant than NLR according to the multivariate logistic regression analysis.Therefore,substantive significance should be emphasized rather than NLR because total tumor size and macro-vascular invasion are easier and more expressive than NLR in assessing HCC recurrence.NLR and platelet-lymphocyte ratio(PLR)are markers which are easy to obtain and can be used as inflammation indicators.Moreover,assessment of both NLR and PLR may add some value as a good predictor of risk for post-liver transplantation HCC recurrence.However,while the study was constructed on whole blood analysis,further details about the features and performance characteristics of the whole-blood analyzer,and preanalytical/analytical variables should also be mentioned. | Huseyin Kayadibi Erdim Sertoglu Metin Uyanik Serkan Tapan | 2014 | World Journal of Gastroenterology2014，20，28： | 7 |
| 17 | Mallory-Denk Bodies in chronic hepatitis显示文摘Mallory-Denk Bodies(MDB) are important as investigators,suggesting MDB as an indicator of the histologic severity of chronic hepatitis,causes of which include hepatitis C,primary biliary cirrhosis(PBC),and nonalcoholic fatty liver disease(NAFLD).Matteoni et al scored MDB in patients with NAFLD as none,rare and many,and reported that MDB plays a prominent role in this classification scheme in an earlier classification system.In this study,we evaluated 258 patients with chronic hepatitis due to metabolic,autoimmune and viral etiologies.Liver biopsy samples were evaluated with hematoxylin and eosin,periodic acid-Schiff-diastase,Gordon and Sweet's reticulin,Masson's trichrome,and iron stains.Both staging and grading were performed.Additionally,MDB were evaluated and discussed for each disease.We examined patients with nonalcoholic steatohepatitis(NASH;50 patients),alcoholic hepatitis(10 patients),PBC(50 patients),Wilson disease(WD;20 patients),hepatitis B(50 patients),hepatitis C(50 pati-ents) and hepatocellular carcinoma(HCC;30 patients).Frequency of MDB was as follows;NASH:10 patients with mild in 60% and moderate in 40% and observed in every stage of the disease and frequently seen in zone 3.PBC:11 patients with mild in 10%,moderate in 70%,and cirrhosis in 20%,and frequently seen in zone 1.WD:16 patients with moderate and severe in 60% and cirrhosis in 40% and frequently seen in zone 1.Hep B:3 patients with mild in 66% and severe in 34%.Hep C:7 patients with mild in 40% and moderate in 60% and observed in every stage.HCC:3 patients with hep B in 2 patients.We found that there is no relationship between MDB and any form of chronic hepatitis regarding histologic severity such as alcoholic steatohepatitis and NAFLD and variable zone distribution by etiology. | Metin Basaranoglu Nesrin Turhan Abdullah Sonsuz Gkcen Basaranoglu | 2011 | World Journal of Gastroenterology2011，17，17： | 6 |
| 18 | Coronary artery bypass grafting in the octogenarians: should we intervene, or leave them be?显示文摘ObjectiveCoronary 动脉绕过 grafting (CABG ) 逐渐地在老人口正在增加。我们试图在 80 的年龄和 older.MethodsBetween 2002年1月和2011年12月在病人与长期的幸存一起调查风险因素和 CABG 的结果,在 80 的年龄的 101 个连续病人的一个总数并且更旧在我们的医院里经历了 CABG 的人,在学习被包括。病人被跟随,长期的幸存是病人的 estimated.ResultsThe 平均数年龄是 82.98 ±2.27 年。(63.4%) 64 是男性,(36.6%) 37 是女性。紧急情况外科,持续时间心肺绕过,特别护理单位(ICU ) 停留, inotropic 支持,大动脉的汽球跳动申请,红血球输送的数量和新鲜冻结的血浆输送和通风时期是的 intra 在在医院里死了的病人显著地更高。持续时间心肺绕过(CPB ) 被发现是死亡的一个独立预言者(或:1.18, 95% CI 1.01 − 1.38, P = 0.034 ) 。在里面医院死亡是 16.8% 。Kaplan-Meier 分析在一年揭示了 91.3% 的幸存比率, 82.9% 在三年并且 69.0% 在五 years.ConclusionsPatients 在 80 岁时并且更旧 CABG 过程的候选人能正在牢记他们可以有一个更长的通风时期和特别护理单位停留。这个年龄组的病态和死亡在一个可接受的范围以内被考虑。最小化 CPB 的途径,或离开泵外科的选择,可以是一个预防方法降低死亡的发生。因此, CABG 可以与令人满意的幸存比率在这个年龄组被执行。 | Anil Ozen Ertekin Utku Unal Murat Songur Sinan Sabit Kocabeyoglu Onur Hanedan Metin Yilmaz Basak Soran Turkcan Ferit Cicekcioglu Sadi Kaplan Cemal Levent Birincioglu | 2015 | Journal of Geriatric Cardiology2015，12，2： | 5 |
| 19 | Dysentery caused by Balantidium coliin a patient with non-Hodgkin's lymphoma from Turkey显示文摘Balantidium coli is the only parasitic ciliate of man. It is a flattened oval organism covered with cilia, and a gullet at the anterior end. It is infrequently pathogenic for man,although epidemic buds in tropical zones have been described. The infection fundamentally affects the colon and causes variable clinic pictures, from asymptomatic to serious dysenteric forms. We present a case of parasitologically diagnosed as causes of diarrhea in a patient with non Hodgkin's lymphoma from Turkey.In order to find out the causative etiologic agent of diarrhea,stool samples were examined by native,lugol and flotation methods and we detected moving trophozoites, which were approximately 60μm long and 35μm wide.These bodies were diagnosed as Balantidium coli This case underlines that Balantidium coli should also be considered as a possible pathogen in immunocompromised patients with diarrhea. | Süleyman Yazar Fevzi Altuntas Izzet Sahin Metin Atambay | 2004 | World Journal of Gastroenterology2004，10，3： | 4 |
| 20 | Re-adhesion control strategy based on the optimal slip velocity seeking method显示文摘In the railway industry, re-adhesion control plays an important role in attenuating the slip occurrence due to the low adhesion condition in the wheel–rail interaction. Braking and traction forces depend on the normal force and adhesion coefficient at the wheel–rail contact area. Due to the restrictions on controlling normal force,the only way to increase the tractive or braking effect is to maximize the adhesion coefficient. Through efficient utilization of adhesion, it is also possible to avoid wheel–rail wear and minimize the energy consumption. The adhesion between wheel and rail is a highly nonlinear function of many parameters like environmental conditions, railway vehicle speed and slip velocity. To estimate these unknown parameters accurately is a very hard and competitive challenge. The robust adaptive control strategy presented in this paper is not only able to suppress the wheel slip in time, but also maximize the adhesion utilization performance after re-adhesion process even if the wheel–rail contact mechanism exhibits significant adhesion uncertainties and/or nonlinearities. Using an optimal slip velocity seeking algorithm, the proposed strategy providesa satisfactory slip velocity tracking ability, which was demonstrated able to realize the desired slip velocity without experiencing any instability problem. The control torque of the traction motor was regulated continuously to drive the railway vehicle in the neighborhood of the optimal adhesion point and guarantee the best traction capacity after re-adhesion process by making the railway vehicle operate away from the unstable region. The results obtained from the adaptive approach based on the secondorder sliding mode observer have been confirmed through theoretical analysis and numerical simulation conducted in MATLAB and Simulink with a full traction model under various wheel–rail conditions. | Caglar Uyulan Metin Gokasan Seta Bogosyan | 2018 | Journal of Modern Transportation2018，26，1： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员