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| 1 | Tight junctions in inflammatory bowel diseases and inflammatory bowel disease associated colorectal cancer显示文摘Inflammatory bowel diseases are characterised by inflammation that compromises the integrity of the epithelial barrier. The intestinal epithelium is not only a static barrier but has evolved complex mechanisms to control and regulate bacterial interactions with the mucosal surface. Apical tight junction proteins are critical in the maintenance of epithelial barrier function and control of paracellular permeability. The characterisation of alterations in tight junction proteins as key players in epithelial barrier function in inflammatory bowel diseases is rapidly enhancing our understanding of critical mechanisms in disease pathogenesis as well as novel therapeutic opportunities. Here we give an overview of recent literature focusing on the role of tight junction proteins, in particular claudins, in inflammatory bowel diseases and inflammatory bowel disease associated colorectal cancer. | Jonathan Landy Emma Ronde Nick English Sue K Clark Ailsa L Hart Stella C Knight Paul J Ciclitira Hafid Omar Al-Hassi | 2016 | World Journal of Gastroenterology2016，22，11： | 39 |
| 2 | H pylori infection and systemic antibodies to CagA and heat shock protein 60 in patients with coronary heart disease显示文摘AIM: To determine the overall prevalence of H pylori and CagA positive H pylori infection and the prevalence of other bacterial and viral causes of chronic infection in patients with coronary heart disease (CHD), and the potential role of anti-heat-shock protein 60 (Hsp60) anti- body response to these proteins in increasing the risk of CHD development. METHODS: Eighty patients with CHD and 160 controls were employed. We also compared the levels of anti- heat-shock protein 60 (Hsp60) antibodies in the two groups. The H pylori infection and the CagA status were determined serologically, using commercially available enzyme-linked immunosorbent assays (ELISA), and a Western blotting method developed in our laboratory. Systemic antibodies to Hsp60 were determined by a sandwich ELISA, using a polyclonal antibody to Hsp60 to sensitise polystyrene plates and a commercially available human Hsp60 as an antigen. RESULTS: The overall prevalence of H pylori infec- tion was 78.7% (n = 63) in patients and 76.2% (n = 122) in controls (P = 0.07). Patients infected by CagA- positive (CagA+) H pylori strains were 71.4% (n = 45) vs 52.4% of infected controls (P = 0.030, OR = 2.27). Sys-temic levels of IgG to Hsp60 were increased in H pylori- negative patients compared with uninfected controls (P < 0.001) and CagA-positive infected patients compared with CagA-positive infected controls (P = 0.007). CONCLUSION: CagA positive H pylori infection may concur to the development of CHD; high levels of anti- Hsp60 antibodies may constitute a marker and/or a con- comitant pathogenic factor of the disease. | Cristina Lenzi Alberto Palazzuoli Nicola Giordano Giuliano Alegente Catia Gonnelli Maria Stella Campagna Annalisa Santucci Michele Sozzi Panagiotis Papakostas Fabio Rollo Ranuccio Nuti Natale Figura | 2006 | World Journal of Gastroenterology2006，12，48： | 23 |
| 3 | Golgi protein-73:A biomarker for assessing cirrhosis and prognosis of liver disease patients显示文摘BACKGROUND Reliable biomarkers of cirrhosis,hepatocellular carcinoma(HCC),or progression of chronic liver diseases are missing.In this context,Golgi protein-73(GP73)also called Golgi phosphoprotein-2,was originally defined as a resident Golgi type II transmembrane protein expressed in epithelial cells.As a result,GP73 expression was found primarily in biliary epithelial cells,with only slight detection in hepatocytes.However,in patients with acute or chronic liver diseases and especially in HCC,the expression of GP73 is significantly up-regulated in hepatocytes.So far,few studies have assessed GP73 as a diagnostic or prognostic marker of liver fibrosis and disease progression.AIM To assess serum GP73 efficacy as a diagnostic marker of cirrhosis and/or HCC or as predictor of liver disease progression.METHODS GP73 serum levels were retrospectively determined by a novel GP73 ELISA(QUANTA Lite®GP73,Inova Diagnostics,Inc.,Research Use Only)in a large cohort of 632 consecutive patients with chronic viral and non-viral liver diseases collected from two tertiary Academic centers in Larissa,Greece(n=366)and Debrecen,Hungary(n=266).Aspartate aminotransferase(AST)/Platelets(PLT)ratio index(APRI)was also calculated at the relevant time points in all patients.Two hundred and three patients had chronic hepatitis B,183 chronic hepatitis C,198 alcoholic liver disease,28 autoimmune cholestatic liver diseases,15 autoimmune hepatitis,and 5 with other liver-related disorders.The duration of follow-up was 50(57)mo[median(interquartile range)].The development of cirrhosis,liver decompensation and/or HCC during follow-up were assessed according to internationally accepted guidelines.In particular,the surveillance for the development of HCC was performed regularly with ultrasound imaging and alpha-fetoprotein(AFP)determination every 6 mo in cirrhotic and every 12 mo in non-cirrhotic patients.RESULTS Increased serum levels of GP73(>20 units)were detected at initial evaluation in 277 out of 632 patients(43.8%).GP73-seropositivity correlated at baseline with the presence of cirrhosis(96.4%vs 51.5%,P<0.001),decompensation of cirrhosis(60.3%vs 35.5%,P<0.001),presence of HCC(18.4%vs 7.9%,P<0.001)and advanced HCC stage(52.9%vs 14.8%,P=0.002).GP73 had higher diagnostic accuracy for the presence of cirrhosis compared to APRI score[Area under the curve(AUC)(95%CI):0.909(0.885-0.934)vs 0.849(0.813-0.886),P=0.003].Combination of GP73 with APRI improved further the accuracy(AUC:0.925)compared to GP73(AUC:0.909,P=0.005)or APRI alone(AUC:0.849,P<0.001).GP73 levels were significantly higher in HCC patients compared to non-HCC[22.5(29.2)vs 16(20.3)units,P<0.001)and positively associated with BCLC stage[stage 0:13.9(10.8);stage A:17.1(16.8);stage B:19.6(22.3);stage C:32.2(30.8);stage D:45.3(86.6)units,P<0.001]and tumor dimensions[very early:13.9(10.8);intermediate:19.6(18.4);advanced:29.1(33.6)units,P=0.004].However,the discriminative ability for HCC diagnosis was relatively low[AUC(95%CI):0.623(0.570-0.675)].Kaplan-Meier analysis showed that the detection of GP73 in patients with compensated cirrhosis at baseline,was prognostic of higher rates of decompensation(P=0.036),HCC development(P=0.08),and liver-related deaths(P<0.001)during follow-up.CONCLUSION GP73 alone appears efficient for detecting cirrhosis and superior to APRI determination.In combination with APRI,its diagnostic performance can be further improved.Most importantly,the simple GP73 measurement proved promising for predicting a worse outcome of patients with both viral and nonviral chronic liver diseases. | Nikolaos K Gatselis Tamás Tornai Zakera Shums Kalliopi Zachou Asterios Saitis Stella Gabeta Roger Albesa Gary L Norman Mária Papp George N Dalekos | 2020 | World Journal of Gastroenterology2020，26，34： | 21 |
| 4 | 肿瘤恶性转化与C/EBPβ和STAT3基因相关(英文)显示文摘The inference of transcriptional networks that regulate transitions into physiological or pathological cellular states remains a central challenge in systems biology. A mesenchymal phenotype is the hallmark of tumour aggressiveness in human malignant glioma,but the regulatory programs responsible for implementing the associated molecular signature are largely unknown. Here we show that reverse-engineering and an unbiased interrogation of a glioma-specific regulatory network reveal the transcriptional module that activates expression of mesenchymal genes in malignant glioma. Two transcription factors (C/EBPβ and STAT3) emerge as synergistic initiators and master regulators of mesenchymal transformation. Ectopic co-expression of C/EBPβ and STAT3 reprograms neural stem cells along the aberrant mesenchymal lineage,whereas elimination of the two factors in glioma cells leads to collapse of the mesenchymal signature and reduces tumour aggressiveness. In human glioma,expression of C/EBPβ and STAT3 correlates with mesenchymal differentiation and predicts poor clinical outcome. These results show that the activation of a small regulatory module is necessary and sufficient to initiate and maintain an aberrant phenotypic state in cancer cells. | Maria Stella Carro Wei Keat Lim Mariano Javier Alvarez Robert J. Bollo Evan Y. Snyder Erik P. Sulman Sandrine L. Anne Fiona Doetsch Howard Colman Anna Lasorella Ken Aldape Andrea Califano Antonio Iavarone | 2010 | 中华神经外科疾病研究杂志2010，9，1： | 16 |
| 5 | Type 2 diabetes is associated with a worse functional outcome of ischemic stroke显示文摘AIM: To assess whether ischemic stroke severity and outcome is more adverse in patients with type 2 diabetes mellitus(T2DM). METHODS: Consecutive patients hospitalized for acute ischemic stroke between September 2010 and June 2013 were studied prospectively(n = 482; 40.2% males, age 78.8 ± 6.7 years). T2 DM was defined as self-reported T2 DM or antidiabetic treatment. Stroke severity was evaluated with the National Institutes of Health Stroke Scale(NIHSS) score at admission. The outcome was assessed with the modified Rankin scale(m RS) score at discharge and with in-hospital mortality. Adverse outcome was defined as m RS score at discharge ≥ 2 or in-hospital death. The length of hospitalization was also recorded.RESULTS: T2 DM was present in 32.2% of the study population. Patients with T2 DM had a larger waist circumference, higher serum triglyceride and glucose levels and lower serum high-density lipoprotein cholesterol levels as well as higher prevalence of hypertension, coronary heart disease and congestive heart failure than patients without T2 DM. On the other hand, diabetic patients had lower low-density lipoprotein cholesterol levels and reported smaller consumption of alcohol than non-diabetic patients. At admission, the NIHSS score did not differ between patients with and without T2DM(8.7 ± 8.8 and 8.6 ± 9.2, respectively; P = NS). At discharge, the m RS score also did not differ between the two groups(2.7 ± 2.1 and 2.7 ± 2.2 in patients with and without T2 DM, respectively; P = NS). Rates of adverse outcome were also similar in patients with and without T2DM(62.3% and 58.5%, respectively; P = NS). However, when we adjusted for the differences between patients with T2 DM and those without T2 DM in cardiovascular risk factors, T2 DM was independently associated with adverse outcome [relative risk(RR) = 2.39; 95%CI: 1.21-4.72, P = 0.012]. Inhospital mortality rates did not differ between patients with T2 DM and those without T2DM(9.0% and 9.8%, respectively; P = NS). In multivariate analysis adjusting for the difference in cardiovascular risk factors between the two groups, T2 DM was again not associated with in-hospital death. CONCLUSION: T2 DM does not appear to affect ischemic stroke severity but is independently associated with a worse functional outcome at discharge. | Konstantinos Tziomalos Marianna Spanou Stella D Bouziana Maria Papadopoulou Vasilios Giampatzis Stavroula Kostaki Vasiliki Dourliou Maria Tsopozidi Christos Savopoulos Apostolos I Hatzitolios | 2014 | World Journal of Diabetes2014，5，6： | 15 |
| 6 | Impact of crystalline and amorphous iron-and aluminum hydroxides on mechanisms of phosphate adsorption and desorption显示文摘Fourier-transform infrared(FT-IR) spectroscopic experiments were carried out during phosphate adsorption on highly crystalline gibbsite, poorly crystalline 2-line-ferrihydrite and amorphous iron–aluminum–hydroxide mixtures in the molar ratio 1:0, 10:1, 5:1, 1:1, 1:5, 1:10 and 0:1. The OH stretching vibrational bands were utilized to analyze changes in structural and surface OH groups during adsorption, because the position of characteristic P\O vibrational bands can shift depending on reaction conditions, pH or adsorbed phosphate content.Adsorption and desorption kinetics were studied at pH6 and different initial phosphate concentrations to achieve varying phosphate coverage on the mineral surfaces. For gibbsite the formation of AlHPO_4 and Al_2HPO_4 can be assumed, while for ferrihydrite, a FeHPO_4 or Fe_2PO_4 complex and the precipitation of FePO_4 with longer equilibration time were proposed.Fe_2HPO_4 or a Fe_2PO_4 surface complex was deduced for Fe-hydroxides, an AlH_2PO_4 surface complex was identified for Al-hydroxide, and both displayed either hydrogen bonds to neighboring hydroxyl groups or hydrogen bonds to outer-sphere complexes. Fe:Al-hydroxide mixtures with high Al ratios showed a low phosphate desorption rate, while ferrihydrite and the Fe:Al-hydroxide mixtures with high Fe ratios had almost negligible desorption rates. It was concluded that within the weakly associated amorphous FeO(OH) materials, FePO_4 precipitated, which was bound by outer-sphere hydrogen bonds. With high Al ratios, desorption increased, which indicated weaker phosphate binding of both inner-sphere and outer-sphere complexes and hence, either no or minor quantities of precipitate. Ferrihydrite showed a more rigid structure and a lower extent of precipitation compared to amorphous Fe-hydroxide. | Stella Gypser Florian Hirsch Anja M.Schleicher Dirk Freese | 2018 | Journal of Environmental Sciences2018，30，8： | 14 |
| 7 | Post-endoscopic retrograde cholangio-pancreatography pancreatitis:Is time for a new preventive approach?显示文摘Acute pancreatitis is the most common serious complication of endoscopic retrograde cholangio-pancre-atography (ERCP) and its incidence may exceed 25% in some high-risk patient subsets. In some patients, pancreatitis may follow a severe course with pancreatic necrosis, multiorgan failure, permanent disability and even death. Hence, approaches which minimize both the incidence and severity of post-ERCP pancreatitis are worth pursuing. Pancreatic stents have been used with some success in the prevention of post-ERCP, while so far pharmacological trials have yielded disappointing results. A recent multicenter, randomized, placebo-controlled, double-blind trial has shown that rectally administered indomethacin is effective in reducing the incidence of post-ERCP pancreatitis, the occurrence of episodes of moderate-to-severe pancreatitis and the length of hospital stay in high-risk patients. These results together with the demonstration that rectal administration of indomethacin is not associated with en-hanced risk of bleeding strongly support the use of this drug in the prophylaxis of post-ERCP pancreatitis. | Stella Tammaro Roberta Caruso Francesco Pallone Giovanni Monteleone | 2012 | World Journal of Gastroenterology2012，18，34： | 13 |
| 8 | Dementia studies in Chinese populations显示文摘Variations in the prevalence of dementia in different ethnic groups have been reported worldwide, and a number of reviews have provided a picture of epidemiological studies in dementia research. However, little is known about epidemiological studies in Chinese populations. In this review, we searched PubMed and the Web of Science for original research articles published in English up to July 2013 on the prevalence, incidence, risk factors, and prognosis of dementia in Chinese populations worldwide. Except for the prevalence, we included only population-based follow-up studies. We identified 25 studies in elderly Chinese residents in China's Mainland, Hong Kong, Taiwan, and Singapore, and found a higher prevalence of dementia in China's Mainland than in the other locations, which may be due to that the studies from China's Mainland are more recent than those from other locations. A notable increase in incidence was observed when dementia cases were diagnosed using 10/66 diagnostic criteria compared to other criteria. Studies on risk factors for dementia were limited and mostly from China's Mainland. Age, gender, education, smoking, and alcohol consumption were related to the risk of dementia in Chinese populations. Only two prognostic studies were identifi ed, and age, gender, and residential area were related to the prognosis of dementia. In conclusion, the prevalence, incidence, and risk factors for dementia found in Chinese populations were comparable to other ethnic groups, but no conclusive results on prognosis were found. The differences in prevalence and incidence were influenced by the diagnostic criteria and the time of study. Longitudinal population-based studies on the incidence, risk factors, and prognosis of dementia in Chinese populations are required. | Jin-Jing Pei Maria Stella T. Giron Jianping Jia Hui-Xin Wang | 2014 | Neuroscience Bulletin2014，30，2： | 13 |
| 9 | An integrated approach for increasing breeding efficiency in apple and peach in Europe显示文摘Despite the availability of whole genome sequences of apple and peach,there has been a considerable gap between genomics and breeding.To bridge the gap,the European Union funded the FruitBreedomics project(March 2011 to August 2015)involving 28 research institutes and private companies.Three complementary approaches were pursued:(i)tool and software development,(ii)deciphering genetic control of main horticultural traits taking into account allelic diversity and(iii)developing plant materials,tools and methodologies for breeders.Decisive breakthroughs were made including the making available of ready-to-go DNA diagnostic tests for Marker Assisted Breeding,development of new,dense SNP arrays in apple and peach,new phenotypic methods for some complex traits,software for gene/QTL discovery on breeding germplasm via Pedigree Based Analysis(PBA).This resulted in the discovery of highly predictive molecular markers for traits of horticultural interest via PBA and via Genome Wide Association Studies(GWAS)on several European genebank collections.FruitBreedomics also developed pre-breeding plant materials in which multiple sources of resistance were pyramided and software that can support breeders in their selection activities.Through FruitBreedomics,significant progresses were made in the field of apple and peach breeding,genetics,genomics and bioinformatics of which advantage will be made by breeders,germplasm curators and scientists.A major part of the data collected during the project has been stored in the FruitBreedomics database and has been made available to the public.This review covers the scientific discoveries made in this major endeavour,and perspective in the apple and peach breeding and genomics in Europe and beyond. | Francois Laurens Maria JoséAranzana Pere Arus Daniele Bassi Marco Bink Joan Bonany Andrea Caprera Luca Corelli-Grappadelli Evelyne Costes Charles-Eric Durel Jehan-Baptiste Mauroux Hélène Muranty Nelson Nazzicari Thierry Pascal Andrea Patocchi Andreas Peil Bénédicte Quilot-Turion Laura Rossini Alessandra Stella Michela Troggio Riccardo Velasco Eric van de Weg | 2018 | Horticulture Research2018，5，1： | 10 |
| 10 | Does heart rate variability correlate with long-term prognosis in myocardial infarction patients treated by early revascularization?显示文摘AIM To assess the prevalence of depressed heart rate variability(HRV) after an acute myocardial infarction(MI),and to evaluate its prognostic significance in the present era of immediate reperfusion.METHODS Time-domain HRV(obtained from 24-h Holter recordings) was assessed in 326 patients(63.5 ± 12.1 years old; 80% males),two weeks after a complicated MI treated by early reperfusion: 208 ST-elevation myocardial infarction(STEMI) patients(in which reperfusion wassuccessfully obtained within 6 h of symptoms in 94% of cases) and 118 non-ST-elevation myocardial infarction(NSTEMI) patients(percutaneous coronary intervention was performed within 24 h and successful in 73% of cases). Follow-up of the patients was performed via telephone interviews a median of 25 mo after the index event(95%CI of the mean 23.3-28.0). Primary endpoint was occurrence of all-cause or cardiac death; secondary end-point was occurrence of major clinical events(MCE,defined as mortality or readmission for new MI,new revascularization,episodes of heart failure or stroke). Possible correlations between HRV parameters(mainly the standard deviation of all normal RR intervals,SDNN),clinical features(age,sex,type of MI,history of diabetes,left ventricle ejection fraction),angiographic characteristics(number of coronary arteries with critical stenoses,success and completeness of revascularization) and long-term outcomes were analysed.RESULTS Markedly depressed HRV parameters were present in a relatively small percentage of patients: SDNN < 70 ms was found in 16% and SDNN < 50 ms in 4% of cases. No significant differences were present between STEMI and NSTEMI cases as regards to their distribution among quartiles of SDNN(χ~2 =1.536,P = 0.674). Female sex and history of diabetes maintained a significant correlation with lower values of SDNN at multivariate Cox regression analysis(respectively: P = 0.008 and P = 0.008),while no correlation was found between depressed SDNN and history of previous MI(P = 0.999) or number of diseased coronary arteries(P = 0.428) or unsuccessful percutaneous coronary intervention(PCI)(P = 0.691). Patients with left ventricle ejection fraction(LVEF) < 40% presented more often SDNN values in the lowest quartile(P < 0.001). After > 2 years from infarction,a total of 10 patients(3.1%) were lost to follow-up. Overall incidence of MCE at follow-up was similar between STEMI and NSTEMI(P = 0.141),although all-cause and cardiac mortality were higher among NSTEMI cases(respectively: 14% vs 2%,P = 0.001; and 10% vs 1.5%,P = 0.001). The Kaplan-Meier survival curves for all-cause mortality and for cardiac deaths did not reveal significant differences between patients with SDNN in the lowest quartile and other quartiles of SDNN(respectively: P = 0.137 and P = 0.527). Also the MCE-free survival curves were similar between the group of patients with SDNN in the lowest quartile vs the patients of the other SDNN quartiles(P = 0.540),with no difference for STEMI(P = 0.180) or NSTEMI patients(P = 0.541). By the contrary,eventsfree survival was worse if patients presented with LVEF < 40%(P = 0.001).CONCLUSION In our group of patients with a recent complicated MI,abnormal autonomic parameters have been found with a prevalence that was similar for STEMI and NSTEMI cases,and substantially unchanged in comparison to what reported in the pre-primary-PCI era. Long-term outcomes did not correlate with level of depression ofHRV parameters recorded in the subacute phase of the disease,both in STEMI and in NSTEMI patients. These results support lack of prognostic significance of traditional HRV parameters when immediate coronary reperfusion is utilised. | Leonida Compostella Nenad Lakusic Caterina Compostella Li Van Stella Truong Sabino Iliceto Fabio Bellotto | 2017 | World Journal of Cardiology2017，9，1： | 9 |
| 11 | Infections with Helicobacter pylori and challenges encountered in Africa显示文摘Helicobacter pylori(H.pylori)is the causative agent of gastritis,peptic ulcer disease,mucosa associated lymphoid tissue lymphoma and gastric cancer(GC).While this bacterium infects 50%of the world’s population,in Africa its prevalence reach as high as 80%as the infection is acquired during childhood.Risk factors for H.pylori acquisition have been reported to be mainly due to overcrowding,to have infected siblings or parent and to unsafe water sources.Despite this high H.pylori prevalence there still does not exist an African guideline,equivalent to the Maastricht V/Florence Consensus Report of the European Helicobacter and Microbiota Study Group for the management of this infection.In this continent,although there is a paucity of epidemiologic data,a contrast between the high prevalence of H.pylori infection and the low incidence of GC has been reported.This phenomenon is the so-called“African Enigma”and it has been hypothesized that it could be explained by environmental,dietary and genetic factors.A heterogeneity of data both on diagnosis and on therapy have been published.In this context,it is evident that in several African countries the increasing rate of bacterial resistance,mainly to metronidazole and clarithromycin,requires continental guidelines to recommend the appropriate management of H.pylori.The aim of this manuscript is to review current literature on H.pylori infection in Africa,in terms of prevalence,risk factors,impact on human health,treatment and challenges encountered so as to proffer possible solutions to reduce H.pylori transmission in this continent. | Stella Smith Muinah Fowora Rinaldo Pellicano | 2019 | World Journal of Gastroenterology2019，25，25： | 8 |
| 12 | Survival rates according to barcelona clinic liver cancer sub-staging system after transarterial embolization for intermediate hepatocellular carcinoma显示文摘AIM: To investigate the survival rates after transarterial embolization(TAE).METHODS: One hundred third six hepatocellular carcinoma(HCC) patients [90 barcelona clinic liver cancer(BCLC) B] were submitted to TAE between August 2008 and December 2013 in a single center were retrospectively studied. TAE was performed via superselective catheterization followed by embolization with polyvinyl alcohol or microspheres. The date of the first embolization until death or the last follow-up date was used for the assessment of survival. The survival rates were calculated using the Kaplan-Meier method, and the groups were compared using the log-rank test.RESULTS: The overall mean survival was 35.8 mo(95%CI: 25.1-52.0). The survival rates of the BCLC A patients(33.7%) were 98.9%, 79.0% and 58.0% at 12, 24 and 36 mo, respectively, and the mean survival was 38.1 mo(95%CI: 27.5-52.0). The survival rates of the BCLC B patients(66.2%) were 89.0%, 69.0% and 49.5% at 12, 24 and 36 mo, respectively, and the mean survival was 29.0 mo(95%CI: 17.2-34). The survival rates according to the BCLC B sub-staging showed significant differences between the groups, with mean survival rates in the B1, B2, B3 and B4 groups of 33.5 mo(95%CI: 32.8-34.3), 28.6 mo(95%CI: 27.5-29.8), 19.0 mo(95%CI: 17.2-20.9) and 13 mo, respectively(P = 0.013).CONCLUSION : The BCLC sub-stagingsystem could add additional prognosis information for postembolization survival rates in HCC patients. | Leandro Armani Scaffaro Steffan Frosi Stella Mario Reis Alvares-Da-Silva Cleber Dario Pinto Kruel | 2015 | World Journal of Hepatology2015，7，3： | 8 |
| 13 | Ascending aortic dilatation rate after transcatheter aortic valve replacement in patients with bicuspid and tricuspid aortic stenosis: A multidetector computed tomography follow-up study显示文摘BACKGROUND: Current data is lacking about the progression of ascending aortic dilatation after transcatheter aortic valve replacement(TAVR) in aortic stenosis(AS) patients with bicuspid aortic valve(BAV) and tricuspid aortic valve(TAV). This study aims to assess the ascending aortic dilatation rate(mm/year) after TAVR in patients with BAV versus TAV using a multidetector computed tomography(MDCT) fol ow-up and to determine the predictors of ascending aortic dilatation rate.METHODS: Severe AS patients undergoing TAVR from March 2013 to March 2018 at our center with MDCT follow-ups were included. BAV and TAV were identified using baseline MDCT. Baseline and follow-up MDCT images were analyzed,and the diameters of ascending aorta were measured. Study end point is ascending aortic dilatation rate(mm/year). Furthermore,factors predicting ascending aortic dilatation rate were also investigated.RESULTS: Two hundred and eight patients were included,comprised of 86 BAV and 122 TAV patients. Five,4,3,2,and 1-year MDCT follow-ups were achieved in 7,9,30,46,and 116 patients. The ascending aortic diameter was significantly increased after TAVR in both BAV group(43.7±4.4 mm vs. 44.0±4.5 mm;P<0.001) and TAV group(39.1±4.8 mm vs. 39.7±5.1 mm;P<0.001). However,no difference of ascending aortic dilatation rate was found between BAV and TAV group(0.2±0.8 mm/year vs. 0.3±0.8 mm/year,P=0.592). Multivariate linear regression revealed paravalvular leakage(PVL) grade was independently associated with ascending aortic dilatation rate in the whole population and BAV group,but not TAV group. No aortic events occurred during follow-ups.CONCLUSION: Ascending aortic size continues to grow after TAVR in BAV patients,but the dilatation rate is mild and comparable to that of TAV patients. PVL grade is associated with ascending aortic dilatation rate in BAV patients post-TAVR. | Yu-xin He Jia-qi Fan Qi-feng Zhu Qi-jing Zhou Ju-bo Jiang Li-han Wang Stella Ng Xian-bao Liu Jian-an Wang | 2019 | World Journal of Emergency Medicine2019，10，4： | 8 |
| 14 | Release of interleukin-10 and neurotrophic factors in the choroid plexus:possible inductors of neurogenesis following copolymer-1 immunization after cerebral ischemia显示文摘Copolymer-1(Cop-1) is a peptide with immunomodulatory properties, approved by the Food and Drug Administration of United States in the treatment of multiple sclerosis. Cop-1 has been shown to exert neuroprotective effects and induce neurogenesis in cerebral ischemia models. Nevertheless, the mechanism involved in the neurogenic action of this compound remains unknown. The choroid plexus(CP) is a network of cells that constitute the interphase between the immune and central nervous systems, with the ability to mediate neurogenesis through the release of cytokines and growth factors. Therefore, the CP could play a role in Cop-1-induced neurogenesis. In order to determine the participation of the CP in the induction of neurogenesis after Cop-1 immunization, we evaluated the gene expression of various growth factors(brain-derived neurotrophic factor, insulin-like growth factor 1, neurotrophin-3) and cytokines(tumor necrosis factor alpha, interferon-gamma, interleukin-4(IL-4), IL-10 and IL-17), in the CP at 14 days after ischemia. Furthermore, we analyzed the correlation between the expression of these genes and neurogenesis. Our results showed that Cop-1 was capable of stimulating an upregulation in the expression of the genes encoding for brain-derived neurotrophic factor, insulin-like growth factor 1, neurotrophin-3 and IL-10 in the CP, which correlated with an increase in neurogenesis in the subventricular and subgranular zone. As well, we observed a downregulation of IL-17 gene expression. This study demonstrates the effect of Cop-1 on the expression of growth factors and IL-10 in the CP, in the same way, presents a possible mechanism involved in the neurogenic effect of Cop-1. | Yolanda Cruz Edna E.García Jessica V.Gálvez Stella V.Arias-Santiago Horacio G.Carvajal Raúl Silva-García Herlinda Bonilla-Jaime Julio Rojas-Castaneda Antonio Ibarra | 2018 | Neural Regeneration Research2018，13，10： | 7 |
| 15 | Assessing the Economic Value of Vernacular Architecture of Mountain Regions Using Contingent Valuation显示文摘Human pressure on mountain resources poses certain threats to their natural and man-made environment. Although there are many parameters involved, one of the driving forces behind this situation is the emphasis given so far only to the market value of mountain goods and services, ignoring the true social and environmental costs of using mountain resources. Towards this direction, the use of non-market valuation techniques could prove to be beneficial. Bearing in mind the above remarks, the paper presents an application of the Contingent Valuation Method, which aims at estimating the monetary value of a mountain settlement’s vernacular architecture, namely Metsovo. For this purpose, the survey focuses on Metsovo visitors’ willingness to pay a single annual voluntary contribution to an institution that would be founded in order to undertake all necessary actions required to preserve the town’s traditional character. The results are very promising and indicate that vernacular architecture holds a significant economic value that could justify the implementation of appropriate policies towards the protection of vernacular settlements in mountain areas. | Stella GIANNAKOPOULOU Dimitris DAMIGOS Dimitris KALIAMPAKOS | 2011 | Journal of Mountain Science2011，8，5： | 6 |
| 16 | Hepatitis B virus reactivation in hepatitis B virus surface antigen negative patients receiving immunosuppression: A hidden threat显示文摘AIM: To present the characteristics and the course of a series of anti- hepatitis B virus core antibody (HBc) antibody positive patients, who experienced hepatitis B virus (HBV) reactivation after immunosuppression. METHODS: We retrospectively evaluated in our tertiary centers the medical records of hepatitis B virus surface antigen (HBsAg) negative patients who suffered from HBV reactivation after chemotherapy or immunosuppression during a 3-year period (2009-2011). Accordingly, the clinical, laboratory and virological characteristics of 10 anti-HBc (+) anti-HBs (-)/HBsAg (-) and 4 anti-HBc (+)/antiHBs (+)/HBsAg (-) patients, who developed HBV reactivation after the initiation of chemotherapy or immunosuppressive treatment were analyzed. Quantitative determination of HBV DNA during reactivation was performed in all cases by a quantitative real time polymerase chain reaction kit (COBAS Taqman HBV Test; cut-off of detection: 6 IU/mL). RESULTS: Twelve out of 14 patients were males; median age 74.5 years. In 71.4% of them the primary diagnosis was hematologic malignancy; 78.6% had received rituximab (R) as part of the immunosuppressive regimen. The median time from last chemotherapy schedule till HBV reactivation for 10 out of 11 patients who received R was 3 (range 2-17) mo. Three patients (21.4%) deteriorated, manifesting ascites and hepatic encephalopathy and 2 (14.3%) of them died due to liver failure. CONCLUSION: HBsAg-negative anti-HBc antibody positive patients can develop HBV reactivation even 2 years after stopping immunosuppression, whereas prompt antiviral treatment on diagnosis of reactivation can be lifesaving. | Kalliopi Zachou Alexandros Sarantopoulos Nikolaos K Gatselis Themistoklis Vassiliadis Stella Gabeta Aggelos Stefos Asterios Saitis Panagiota Boura George N Dalekos | 2013 | World Journal of Hepatology2013，5，7： | 6 |
| 17 | Inhibition of apoptosis in the management of nonalcoholic fatty liver disease显示文摘Nonalcoholic fatty liver disease (NAFLD) is the leading cause of chronic liver disease in the developed world. The pathogenesis of NAFLD is multifactorial, involving obesity, insulin resistance, inflammation and oxidative stress. Accordingly, several treatments targeting these pathways have been evaluated in patients with NAFLD but have either shown limited efficacy or an unfavorable safety profile. On the other hand, increased hepatocyte apoptosis also appears to be implicated in the development and progression of NAFLD and recent pilot studies suggest that inhibition of apoptosis might represent a useful approach in this disease. However, several issues pertaining both to the efficacy and safety of this new class of agents remain unresolved and larger studies are required to clarify the role of this therapeutic modality in the management of NAFLD. | Stella D Bouziana Konstantinos Tziomalos | 2013 | World Journal of Gastrointestinal Pharmacology and Therapeutics2013，4，1： | 5 |
| 18 | Para-aortic node involvement is not an independent predictor of survival after resection for pancreatic cancer显示文摘AIM To analyze the importance of para-aortic node status in a series of patients who underwent pancreaticoduodenectomy(PD)in a single Institution.METHODS Between January 2000 and December 2012,151patients underwent PD with para-aortic node dissection for pancreatic adenocarcinoma in our Institution.Patients were divided into two groups:patients with negative PALNs(PALNs-),and patients with metastatic PALNs(PALNs+).Pathologic factors,including stage,nodal status,number of positive nodes and lymph node ratio,invasion of para-aortic nodes,tumor’s grading,and radicality of resection were studied by univariate and multivariate analysis.Survival curves were constructed with Kaplan-Meier method and compared with Log-rank test:significance was considered as P<0.05.RESULTS A total of 107 patients(74%)had nodal metastases.Median number of pathologically assessed lymph nodes was 26(range 14-63).Twenty-five patients(16.5%) had para-aortic lymph node involvement.Thirty-three patients(23%)underwent R1 pancreatic resection.Onehundred forty-one patients recurred and died for tumor recurrence,one is alive with recurrence,and 9 are alive and free of disease.Overall survival was significantly influenced by grading(P=0.0001),radicality of resection(P=0.001),stage(P=0.03),lymph node status(P=0.04),para-aortic nodes metastases(P=0.02).Multivariate analysis showed that grading was an independent prognostic factor for overall survival(P=0.0001),while grading(P=0.0001)and radicality of resection(P=0.01)were prognostic parameters for disease-free survival.Number of metastatic nodes,node ratio,and para-aortic nodes involvement were not independent predictors of disease-free and overall survival.CONCLUSION In this experience,lymph node status and para-aortic node metastases were associated with poor survival at univariate analysis,but they were not independent prognostic factors. | Cosimo Sperti Mario Gruppo Stella Blandamura Michele Valmasoni Gioia Pozza Nicola Passuello Valentina Beltrame Lucia Moletta | 2017 | World Journal of Gastroenterology2017，23，24： | 5 |
| 19 | Selective Cytotoxic Effect of ZnO Nanoparticles on Glioma Cells显示文摘In this study we examined the cytotoxic effect of ZnO nanoparticles on various human cancer and normal cells.We found that the ZnO nanoparticles exerted a cytotoxic effect on the human glioma cell lines A172,U87,LNZ308,LN18,and LN229,whereas no cytotoxic effect was observed on normal human astrocytes.Similarly,the ZnO nanoparticles induced cell death in breast and prostate cancer cell lines while no major effect was observed in the respective normal breast and prostate cell lines.Using the fl uorescent dye 2,7-dichlorofl uorescein diacetate,we found that treatment of the glioma cells with ZnO nanoparticles induced a large increase in the generation of reactive oxygen species(ROS)and treatment of the cells with N-acetyl cysteine decreased the cytotoxic effect of the ZnO nanoparticles.In contrast,a smaller effect on ROS generation was observed in the normal astrocytes.These results suggest that ZnO nanoparticles may be employed as a selective cytotoxic agent for the eradication of cancer cells. | Stella Ostrovsky Gila Kazimirsky Aharon Gedanken Chaya Brodie | 2009 | Nano Research2009，2，11： | 5 |
| 20 | 优质超薄产品用的fTSR技术发展显示文摘根据更严格的市场要求 ,Danieli Wean U nited在近年中开发了一种能够实现生产超薄产品的现代化技术。加拿大的 Algoma钢公司和埃及的 AL Ezz板带公司是成功发展此技术的两家公司。 | Francesco Stella Paolo Bobig Andrea Carboni Ibrahim Faruk 姚望明 | 2003 | 钢铁2003，38，4： | 4 |
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