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| 1 | Octreotide induces caspase activation and apoptosis in human hepatoma HepG2 cells显示文摘AIM: To investigate the role of octreotide on cellular proliferation and apoptosis of human hepatoma (HepG2) cells. METHODS: We studied cellular proliferation, apoptosis and the possible internal caspase-mediated apoptosis pathway involved, after treatment of HepG2 carcinoma cells with octreotide in comparison with the apoptosis caused by tumor necrosis factor-α (TNF-α). Activities of caspase-3, caspase-9, caspase-8 and caspase-2 were studied, while apoptosis was investigated through detection of DNA fragmentation and through identification of apoptotic cells with the annexin-V/propidium iodide flow cytometric method. RESULTS: After an initial increase in HepG2 cellular proliferation, a significant inhibition was observed with 10-8 mol/L octreotide, while TNF-α dose-dependently decreased proliferation. Early and late apoptosis was significantly increased with both substances. Octreotide significantly increased caspase-3, caspase-8 and caspase-2 activity. TNF-α signifi cantly increased only caspase-2. Cellular proliferation was decreased after treatment with octreotide or TNF-α alone but, in contrast to TNF-α, octreotide decreased proliferation only at concentrations of 10-8 mol/L, while lower concentrations increased proliferation. CONCLUSION: Our findings are suggestive of caspasemediated signaling pathways of octreotide antitumor activity in HepG2 cells, and indicate that measurements of serum octreotide levels may be important, at least in clinical trials, to verify optimal therapeutic drug concentrations. | Nikos J Tsagarakis Ioannis Drygiannakis Antonis G Batistakis George Kolios Elias A Kouroumalis | 2011 | World Journal of Gastroenterology2011，17，3： | 5 |
| 2 | Integrating TYMS, KRAS and BRAF testing in patients with metastatic colorectal cancer显示文摘AIM To investigate the impact of thymidylate synthase(TYMS), KRAS and BRAF in the survival of metastatic colorectal cancer(m CRC) patients treated with chemotherapy. METHODS Clinical data were collected retrospectively from records of consecutive patients with m CRC treated with fluoropyrimidine-based chemotherapy from 1/2005 to 1/2007. Formalin-fixed paraffin-embedded tissues were retrieved for analysis. TYMS genotypes were identified with restriction fragment analysis PCR, while KRAS and BRAF mutation status was evaluated using real-time PCR assays. TYMS gene polymorphisms of each of the 3' untranslated region(UTR) and 5'UTR were classified into three groups according to the probability they have for high, medium and low TYMS expression(and similar levels of risk) based on evidence from previous studies. Univariate and multivariate survival analyses were performed.RESULTS The analysis recovered 89 patients with m CRC(46.1% de novo metastatic disease and 53.9% relapsed). Of these, 46 patients(51.7%) had colon cancer and 43(48.3%) rectal cancer as primary. All patients were treated with fluoropyrimidine-based chemotherapy(5FU or capecitabine) as single-agent or in combination with irinotecan or/and oxaliplatin or/and bevacizumab. With a median follow-up time of 14.8 mo(range 0-119.8), 85 patients(95.5%) experienced disease progression, and 63 deaths(70.8%) were recorded. The 3-year and 5-year OS rate was 25.4% and 7.7% while the 3-year progression-free survival rate was 7.1%. Multivariate analysis of TYMS polymorphisms, KRAS and BRAF with clinicopathological parameters indicated that TYMS 3'UTR polymorphisms are associated with risk for disease progression and death(P < 0.05 and P < 0.03 respectively). When compared to tumors without any del allele(genotypes ins/ins and ins/loss of heterozygosity(LOH) linked with high TYMS expression) tumors with del/del genotype(low expression group) and tumors with ins/del or del/LOH(intermediate expression group) have lower risk for disease progression(HR = 0.432, 95%CI: 0.198-0.946, P < 0.04 and HR = 0.513, 95%CI: 0.287-0.919, P < 0.03 respectively) and death(HR = 0.366, 95%CI: 0.162-0.827, P < 0.02 and HR = 0.559, 95%CI: 0.309-1.113, P < 0.06 respectively). Additionally,KRAS mutation was associated independently with the risk of disease progression(HR = 1.600, 95%CI: 1.011-2.531, P < 0.05). The addition of irinotecan in 1st line chemotherapy was associated independently with lower risk for disease progression and death(HR = 0.600, 95%CI: 0.372-0.969, P < 0.04 and HR = 0.352, 95%CI: 0.164-0.757, P < 0.01 respectively).CONCLUSION The TYMS genotypes ins/ins and ins/LOH associate with worst prognosis in m CRC patients under fluoropyrimidine-based chemotherapy. Large prospective studies are needed for validation of our findings. | Anastasios Ntavatzikos Aris Spathis Paul Patapis Nikolaos Machairas George Peros Stefanos Konstantoudakis Danai Leventakou Ioannis G Panayiotides Petros Karakitsos Anna Koumarianou | 2017 | World Journal of Gastroenterology2017，23，32： | 4 |
| 3 | 结肠的腺癌和麦芽淋巴瘤的同时的出现: 一系列三个盒子显示文摘 Simultaneous development of adenocarcinoma and primary B cell lymphoma of mucosa-associated lymphoid tissue(MALT) lymphoma of the colon is rare;only one case has so far been reported out of 13 cases with the coexistence of colonic adenocarcinoma with involvement of the colon by lymphoma.We hereby present three more cases,two females(aged 75 and 71 years) and a male(aged 72 years).All three underwent colectomy based on a preoperative biopsy revealing colonic carcinoma.Histological examination of the resection specimens disclosed a colonic adenocarcinoma in two cases,whereas a tubulovillous adenoma with superficial foci of intraepithelial adenocarcinoma was seen in the thirdcase.Moreover,in all three cases,a coexisting MALT lymphoma was diagnosed in the colon(1 case),in both colon and adjacent lymph nodes(1 case) or in colonic lymph nodes and omentum(1 case).In the last case,a post-operative bone marrow biopsy revealed extensive infiltration of the bone marrow,due to which the patient received postoperative chemotherapy.Diagnostic and treatment issues are briefly discussed. | Theodoros Argyropoulos Periklis Foukas Maria Kefala Panagiotis Xylardistos Sotirios Papageorgiou Nikolaos Machairas Evmorfia Boltetsou Anastasios Machairas Ioannis G Panayiotides | 2012 | World Journal of Gastrointestinal Oncology2012，4，4： | 4 |
| 4 | Subtalar dislocation without associated fractures: Case report and review of literature显示文摘Isolated subtalar dislocations are unusual injuries due to the inherent instability of the talus. Subtalar dislocations are frequently associated with fractures of the malleoli, the talus, the calcaneus or the fifth metatarsal. Four types of subtalar dislocation have been described according to the direction of the foot in relation to the talus: medial, lateral posterior and anterior. It has been shown that some of these dislocations may spontaneously reduce. A rare case of a 36-year-old male patient who sustained a closed medial subtalar dislocation without any associated fractures of the ankle is reported. The patient suffered a pure closed medial subtalar dislocation that is hardly reported in the literature. Six months after injury the patient did not report any pain, had a satisfactory range of motion, and no signs of residual instability or early posttraumatic osteoarthritis. The traumatic mechanism, the treatment options, and the importance of a stable and prompt closed reduction and early mobilization are discussed. | Dionisios Giannoulis Dimitrios V Papadopoulos Marios G Lykissas Panagiotis Koulouvaris Ioannis Gkiatas Alexandros Mavrodontidis | 2015 | World Journal of Orthopedics2015，6，3： | 4 |
| 5 | COVID-19 and liver injury: An ongoing challenge显示文摘The new coronavirus severe acute respiratory syndrome coronavirus 2(SARSCoV-2)was identified in December 2019,in Wuhan,China.The virus was rapidly spread worldwide,causing coronavirus disease 2019(COVID-19)pandemic.Although COVID-19 is presented,usually,with typical respiratory symptoms(i.e.,dyspnea,cough)and fever,extrapulmonary manifestations are also encountered.Liver injury is a common feature in patients with COVID-19 and ranges from mild and temporary elevation of liver enzymes to severe liver injury and,even,acute liver failure.The pathogenesis of liver damage is not clearly defined;multiple mechanisms contribute to liver disorder,including direct cytopathic viral effect,cytokine storm and immune-mediated hepatitis,hypoxic injury,and druginduced liver toxicity.Patients with underlying chronic liver disease(i.e.,cirrhosis,non-alcoholic fatty liver disease,alcohol-related liver disease,hepatocellular carcinoma,etc.)may have greater risk to develop both severe COVID-19 and further liver deterioration,and,as a consequence,certain issues should be considered during disease management.The aim of this review is to present the prevalence,clinical manifestation and pathophysiological mechanisms of liver injury in patients with SARS-CoV-2 infection.Moreover,we overview the association between chronic liver disease and SARS-CoV-2 infection and we briefly discuss the management of liver injury during COVID-19. | Ioanna Papagiouvanni Serafeim-Chrysovalantis Kotoulas Athanasia Pataka Dionisios G Spyratos Konstantinos Porpodis Afroditi K Boutou Georgios Papagiouvannis Ioanna Grigoriou Christos Vettas Ioannis Goulis | 2023 | World Journal of Gastroenterology2023，29，2： | 2 |
| 6 | Lymphoepithelial cysts and cystic lymphangiomas: Underrecognized benign cystic lesions of the pancreas显示文摘AIM: To identify their diagnostic and prognostic clinical characteristics in a large series.METHODS: Retrospective review of clinicopathologic and imaging characteristics of patients diagnosed with lymphoepithelial cysts and cystic lymphangiomas of the pancreas at Massachusetts General Hospital.RESULTS: Twelve patients were identified between 1/1/1997 and 8/1/2007. Their median age was 55.5 years(range 19-78 years), and 6 were females. The le-sion was incidentally discovered in half of the patients.Contrast enhanced computed tomography demonstrat-ed that the cysts had thin walls, without calcifications, pancreatic duct dilation or pancreatic parenchyma inva-sion. Endoscopic ultrasound with fine needle aspiration(EUS/FNA) confirmed the diagnosis of a lymphoepithe-lial cyst in 3 patients, one of whom was spared an op-eration and continues to do well after 6 years. Eleven patients had a resection: 3 pancreaticoduodenecto-mies, 7 distal pancreatectomies, and 1 enucleation. The median size of the cysts was 3 cm(range 2-20 cm). At a median follow-up of 57 mo no recurrences or other pancreas-related conditions occurred.CONCLUSION: Lymphoepithelial cysts and cystic lymphangiomas of the pancreas can be diagnosed with a combination of contrast-enhanced computed tomog-raphy scans and EUS/FNA. If the lesion is asymptom-atic, an operation might be avoided. | Ioannis T Konstantinidis Avinash Kambadakone Onofrio A Catalano Dushyant V Sahani Vikram Deshpe David G Forcione Jennifer A Wargo Carlos Fernandez-del Castillo Keith D Lillemoe Andrew L Warshaw Cristina R Ferrone | 2014 | World Journal of Gastrointestinal Surgery2014，6，7： | 2 |
| 7 | Use of intercostal nerves for different target neurotization in brachial plexus reconstruction显示文摘Intercostal nerve transfer is a valuable procedure in devastating plexopathies. Intercostal nerves are a very good choice for elbow flexion or extension and shoulder abduction when the intraplexus donor nerves are not available. The best results are obtained in obstetric brachial plexus palsy patients, when direct nerve transfer is performed within six months from the injury. Unlike the adult posttraumatic patients after median and ulnar nerve neurotization with intercostal nerves, almost all obstetric brachial plexus palsy patients achieve protective sensation in the hand and some of them achieve active wrist and finger flexion. Use in combination with proper muscles, intercostal nerve transfer can yield adequate power to the paretic upper limb. Reinnervation of native muscles(i.e., latissimus dorsi) should always be sought as they can successfully be transferred later on for further functional restoration. | Marios G Lykissas Ioannis P Kostas-Agnantis Ananstasios V Korompilias Marios D Vekris Alexandros E Beris | 2013 | World Journal of Orthopedics2013，4，3： | 2 |
| 8 | Mean platelet volume: a useful marker of inflammatory bowel disease activity显示文摘 | Andreas N Kapsoritakis Michael I Koukourakis Aekaterini Sfiridaki Spiros P Potamianos Maria G Kosmadaki Ioannis E Koutroubakis Elias A Kouroumalis | 2001 | The American Journal of Gastroenterology2001，，3： | 2 |
| 9 | Applying participatory design and collaboration in digital public services for discovering and redesigning e-Government services显示文摘 | Leo G A Panagiotis S Ioannis A T | 2007 | Government Information Quarterly2007，24，2： | 1 |
| 10 | Pore-network study of the characteristic periods in the drying of porous materials显示文摘 | Yiotis Andreas G Tsimpanogiannis Ioannis N Stubos A K | | 0，，02： | 1 |
| 11 | On Applying a Minimization Technique to the Harmonic Elimination PWM Control : the Bipolar Waveform显示文摘 | Vassilios G Agelidi Anastasios Balouktsis Ioannis Balouktsis | 2004 | IEEEPowerElectronicsLetters June2004，2，2： | 1 |
| 12 | A supply side investigation of medical tourism and ICT use in Greece显示文摘 | Ioannis S Katsoni V Mary G | 2014 | Procedia- Socialand Behavioral Sciences2014，，148： | 1 |
| 13 | Circulating adiponectin and insulin resistance indexes in women with polycystic ovary syndrome显示文摘 | Nectaria X Ioannis G Anthoula C | 2005 | Clin Chem2005，51，2： | 1 |
| 14 | A polymorphism in the resistin gene promoter is associated with body mass index in women with polycystic ovary syndrome显示文摘 | Dimitrios P Nectaria X Ioannis G | 2004 | Fertil Steril2004，82，5： | 1 |
| 15 | Circulating tis- sue inhibitor of matrix metalloproteinase - 4 ( TIMP - 4 ) in sys- temic sclerosis patients with elevated pulmonary arterial pressure 显示文摘 | ELIAS G J IOANNIS M THEODORA P | 2008 | Mediators Inflamm2008，2008，16： | 1 |
| 16 | The expression of vascular endothelial growth factor-C correlates with lymphatic micmvessel density and lymph node metastasis in prostate carcinoma: An im- munohistochemical study显示文摘 | Kestis G Ioannis L Helen K | 2014 | Uml Ann2014，6，3： | 1 |
| 17 | Modelling freshwater inflows in a shallow lake显示文摘 | ALEX J M IOANNIS G | 2004 | Archives of Hydro-enginee6mg and Environmental Mechanics2004，51，1： | 1 |
| 18 | Numerical investigation of a developmental pneumatically fed impact pulveriser显示文摘 | Ioannis G Chatzilamprou Michael J Tierney Mark W Youds | 2006 | Applied Mathematical Modelling2006，，30： | 1 |
| 19 | Exposure to major volatile organic compounds and carbonyls in European indoor environments and associated health risk 显示文摘 | DIMOSTHENIS A S SPYROS P K ALBERTO G IOANNIS L L ATHANASIOS K | 2011 | Environment International2011，37，4： | 1 |
| 20 | The expression of vascular endothelial growth factor-C correlates with lymphatic microvessel density and lymph node metastasis in prostate carcinoma:an immunohistochemical study显示文摘 | Kostis G Ioannis L Helen K | 2014 | Urol Ann2014，6，3： | 1 |
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