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| 1 | Helicobacter pylori and colorectal neoplasia:Is there acausal link?显示文摘Ever since Helicobacter pylori(H. pylori) was recognized as an infectious cause of gastric cancer, there has been increasing interest in examining its potential role in colorectal carcinogenesis. Data from casecontrol and cross-sectional studies, mostly relying on hospital-based samples, and several meta-analyses have shown a positive statistical relationship between H. pylori infection and colorectal neoplasia. However, the possibility exists that the results have been influenced by bias, including the improper selection of patients and disparities with respect to potential confounders. While the evidence falls short of a definitive causal link, it appears that infection with H. pylori /H. pylori-related gastritis is associated with an increased, although modest, risk of colorectal adenoma and cancer. The pathogenic mechanisms responsible for this association remain uncertain. H. pylori has been detected in colorectal malignant tissues; however, the possibility that H. pylori is a direct activator of colonic carcinogenesis remains purely hypothetical. On the other hand, experimental data have indicated a series of potential oncogenic interactions between these bacteria and colorectal mucosa, including induction and perpetuation of inflammatory responses, alteration of gut microflora and release of toxins and/or hormonal mediators, such as gastrin, which may contribute to tumor formation. | Vasilios Papastergiou Stylianos Karatapanis Sotirios D Georgopoulos | 2016 | World Journal of Gastroenterology2016，22，2： | 22 |
| 2 | Treatment of Helicobacter pylori infection:Meeting the challenge of antimicrobial resistance显示文摘Treatment of Helicobacter pylori(H.pylori)infection is paramount for the management of prevalent gastrointestinal disorders including peptic ulcer disease and gastric cancer.Due to the wide increase in prevalence of H.pylori resistance to antibiotics,clarithromycin-based triple therapies are not any more suitable for unconditional empiric use,and should not be recommended,unless local resistance to this antibiotic is low(<20%).Alternative strategies have been proposed to overcome the issue of increasing clarithromycin resistance,and some of them are already implemented in clinical practice.These comprise:(1)adoption of novel,more effective,empirical treatments:bismuth quadruple,sequential,non-bismuth quadruple(concomitant),dual-concomitant(hybrid),and levofloxacin-based regimens,the latter mainly designated as second-line/rescue options;(2)perspectives for a susceptibility-guided(tailored)therapeutic approach based on culture-free molecular testing methods;and(3)adjunct use of probiotics to improve eradication rates.The present article is aimed to provide a comprehensive overview of current and emerging strategies in the treatment of H.pylori infection,focusing on the challenge of antimicrobial resistance. | Vasilios Papastergiou Sotirios D Georgopoulos Stylianos Karatapanis | 2014 | World Journal of Gastroenterology2014，20，29： | 18 |
| 3 | 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 |
| 4 | Treatment of Helicobacter pylori infection: Past, present and future显示文摘Helicobacter pylori(H. pylori) is a major human patho-gen associated with significant morbidity and mortal-ity. However, after decades of efforts, treatment of H. pylori remains a challenge for physicians, as there is no universally effective regimen. Due to the rising prevalence of antimicrobial resistance, mainly to clar-ithromycin, efficacy of standard triple therapies has declined to unacceptably low levels in most parts of the world. Novel regimens, specifically experimented to improve the therapeutic outcome against antibiotic-resistant H. pylori strains, are now recommended as first-line empirical treatment options providing high ef-ficacy(reportedly > 90% in intention to treat analysis) even in high clarithromycin resistance settings. These include the bismuth quadruple, concomitant, sequential and hybrid therapies. Due to the rapid development of quinolone resistance, levofloxacin-based regimens should be reserved as second-line/rescue options. Adjunct use of probiotics has been proposed in order to boost eradication rates and decrease occurrence of treatment-related side effects. Molecular testing meth-ods are currently available for the characterization of H. pylori therapeutic susceptibility, including genotypic detection of macrolide resistance and evaluation of the cytochrome P450 2C19 status known to affect the me-tabolism of proton pump inhibitors. In the future, use of these techniques may allow for culture-free, non-invasive tailoring of therapy for H. pylori infection. | Vasilios Papastergiou Sotirios D Georgopoulos Stylianos Karatapanis | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，4： | 11 |
| 5 | Current options for the treatment of Helicobacter pylori显示文摘 | Sotirios D Georgopoulos Vasilios Papastergiou Stylianos Karatapanis | 2013 | Expert Opinion on Pharmacotherapy2013，，2： | 3 |
| 6 | Safety and efficacy of long-term statin treatment for cardiovascular events in patients with coronary heart disease and abnormal liver tests in the Greek Atorvastatin and Coronary Heart Disease Evaluation (GREACE) Study: a post-hoc analysis显示文摘 | Vasilios G Athyros Konstantinos Tziomalos Thomas D Gossios Theodora Griva Panagiotis Anagnostis Konstantinos Kargiotis Efstathios D Pagourelias Eleni Theocharidou Asterios Karagiannis Dimitri P Mikhailidis | 2010 | The Lancet2010，，9756： | 2 |
| 7 | 在不含酒精的脂肪肝疾病和尖锐 ischemic 击严厉和结果之间的协会显示文摘 AIM:To evaluate the association of nonalcoholic fatty liver disease(NAFLD)with acute ischemic stroke severity and in-hospital outcome.METHODS:We prospectively studied all patients who were admitted in our Department with acute ischemic stroke between September 2010 and August 2012(n=415;39.5%males,mean age 78.8±6.6 years).The severity of stroke was assessed with the National Institutes of Health Stroke Scale(NIHSS)score at admission.NALFD was defined as serum alanine aminotransferase and/or aspartate aminotransferase levels above the upper limit of normal in the absence of other causes of elevated aminotransferases levels[chronic hepatitis B or C,drug toxicity,increased alcohol consumption(>21 and>14 drinks per week in men and women,respectively),cholestatic diseases or rhabdomyolysis].The outcome was assessed with the modified Rankin scale(mRS)score at discharge and in-hospital mortality.Adverse outcome was defined as mRS score at discharge≥2.Dependency at discharge was defined as mRS score between 2 to 5.RESULTS:NAFLD was present in 7.7%of the study population.Patients with NAFLD had lower serum high-density lipoprotein cholesterol and higher triglyceride levels than patients without NAFLD(P<0.05 for both comparisons).Demographic data,the prevalence of other cardiovascular risk factors and the prevalence of established CVD did not differ between the two groups.At admission,the NIHSS score did not differ between patients with and without NAFLD(6.3±6.4and 8.8±9.6,respectively;P=NS).At discharge,the mRS score did not differ between the two groups(1.9±2.2 and 2.6±2.2 in patients with and without NAFLD,respectively;P=NS).Rates of dependency at discharge were also similar in patients with and without NAFLD(36.8%and 55.0%,respectively;P=NS)as were the rates of adverse outcome(42.9%and58.6%,respectively;P=NS).In-hospital mortality rates also did not differ between the 2 groups(8.0%and 7.0%in patients with and without NAFLD,respectively;P=NS).CONCLUSION:The presence of NAFLD in patients admitted for acute ischemic stroke does not appear to be associated with more severe stroke or with worse in-hospital outcome. | Konstantinos Tziomalos Vasilios Giampatzis Stella D Bouziana Marianna Spanou Maria Papadopoulou Athinodoros Pavlidis Stavroula Kostaki Andreas Bozikas Christos Savopoulos Apostolos I Hatzitolios | 2013 | World Journal of Hepatology2013，5，11： | 2 |
| 8 | Effects of age and frequency of cutting on productivity of Mediterranean deciduous fodder tree and shrub plantations显示文摘 | Vasilios PP Panagiotis D P Olympia D P | 1998 | Forest Ecology and Management1998，110，： | 1 |
| 9 | Safety and efficacy of long-term statin treatment for cardiovascular events in patients with coronary heart disease and abnormal liver tests in the Greek Atorvastatin and Coronary Heart Disease Evaluation (GREACE) Study: a post-hoc analysis显示文摘 | Vasilios G Athyros Konstantinos Tziomalos Thomas D Gossios Theodora Griva Panagiotis Anagnostis Konstantinos Kargiotis Efstathios D Pagourelias Eleni Theocharidou Asterios Karagiannis Dimitri P Mikhailidis | 2010 | The Lancet2010，，9756： | 1 |
| 10 | Trifluralin photolysis in natural waters and under the presence of isolated organic matter and nitrate ions: kinetics and photoproduct analysis显示文摘 | Aikaterini D Dimou Vasilios A Sakkas Triantafyllos A A1- banis | 2004 | Journal of Photochemistry and Photobiology A: Chemistry2004，163，： | 1 |
| 11 | Safety and efficacy of long-term statin treatment for cardiovascular events in patients with coronary heart disease and abnormal liver tests in the Greek Atorvastatin and Coronary Heart Disease Evaluation (GREACE) Study: a post-hoc analysis显示文摘 | Vasilios G Athyros Konstantinos Tziomalos Thomas D Gossios Theodora Griva Panagiotis Anagnostis Konstantinos Kargiotis Efstathios D Pagourelias Eleni Theocharidou Asterios Karagiannis Dimitri P Mikhailidis | 2010 | 2010 (9756)2010，，9756： | 1 |
| 12 | Prospective Study of Foveal Thickness Alterations after Cataract Surgery Assessed by Optical Coherence Tomography显示文摘 | Tsilimbaris Miltiadis Diakonis Vasilios F Kymionis George D Eleftheriadou Maria I Fragkiskou Sofia Moschandreas Joanna Frueh Beatrice E Epstein Daniel Pallikaris Aristophanis I | 2012 | Ophthalmologica2012，，1： | 1 |
| 13 | PCSK9 and carbohydrate metabolism:A double-edged sword显示文摘Proprotein convertase subtilisin/kexin type 9(PCSK9) plays a paramount role in the degradation of lowdensity lipoprotein(LDL) receptors(LDLR) on the hepatic cells surface and subsequently affects LDL particles catabolism and LDL cholesterol(LDL-c) levels. The anti-PCSK9 monoclonal antibodies lead to substantial decrease of LDL-c concentration. PCSK9(which is also expressed in pancreatic delta-cells) can decrease LDLR and subsequently decrease cholesterol accumulation in pancreatic beta-cells, which impairs glucose metabolism and reduces insulin secretion. Thus, a possible adverse effect of PCSK9 inhibitors on carbohydrate metabolism may be expected by this mechanism, which has been supported by the mendelian studies results. On the other hand, clinical data have suggested a detrimental association of PCSK9 with glucose metabolism. So, the inhibition of PCSK9 may be seen as a double-edged sword regarding carbohydrate metabolism. Completed clinical trials have not shown a detrimental effect of PCSK9 inhibitors on diabetes risk, but their short-term duration does not allow definite conclusions. | Theodosios D Filippatos Sebastian Filippas-Ntekouan Eleni Pappa Thalia Panagiotopoulou Vasilios Tsimihodimos Moses S Elisaf | 2017 | World Journal of Diabetes2017，8，7： | 1 |
| 14 | A market managed multi-service internet显示文摘 | Bob B Vasilios D Oliver H | 2003 | Computer Communications2003，26，4： | 1 |
| 15 | A market managed multi-service Internet显示文摘 | BOB B VASILIOS D OLIVER H | 2003 | Computer Communications2003，26，4： | 1 |
| 16 | Application and evaluation of large deviation techniques for traffic engineering in broadband networks显示文摘 | Costas Courcoubetis Vasilios A Siris George D Stamoulis | 1998 | ACM SIGMETRICS Performance Evaluation Review1998，26，1： | 1 |
| 17 | A market managed multi-service Intemet显示文摘 | Bob B Vasilios D Oliver H | 2003 | Computer Communications2003，26，4： | 1 |
| 18 | Closure of Atrial Septal Defects With the Amplatzer Occlusion Device: Preliminary Results显示文摘 | Basil (Vasilios) D Thanopoulos Cleo V Laskari George S Tsaousis Armine Zarayelyan Athina Vekiou George S Papadopoulos | 1998 | Journal of the American College of Cardiology1998，，5： | 1 |
| 19 | Luteinizing hormone receptor expression in leiomyomatosis peritonealis disseminata显示文摘 | Vasilios TG Rao CV | 2000 | Obstet Gynecol2000，95，： | 1 |
| 20 | A market managed multi-service intemet 显示文摘 | Bob B Vasilios D Oliver H | 2003 | Computer Communications2003，26，4： | 1 |
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