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Kourti M, Papakonstantinou E, Papagianni A, Arsos G, Ioannidou M, Pantoleon A, Antari V, Palabougiouki M, Kouskouras K, Venizelos I, Κoletsa T, Cheva A, Anastasiou A, Totikidis G, Tragiannidis A, Galli-Tsinopoulou A, Hatzipantelis E. Hodgkin Lymphoma in Children and Adolescents of Northern Greece: 25-Year Results and Long-term Follow-up. J Pediatr Hematol Oncol 2023; 45:322-326. [PMID: 36716084 DOI: 10.1097/mph.0000000000002625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 12/03/2022] [Indexed: 01/31/2023]
Abstract
Aim of this study was to evaluate the long-term therapeutic outcome and treatment-related complications in Hodgkin disease. We reviewed the medical records of 93 patients diagnosed with classic Hodgkin lymphoma, treated, and followed-up during the last 25 years. The cohort study included 49 males and 44 females with median age 11.8 years old (range: 3.95 to 17.42 y). The most common subtype was nodular sclerosis in 47/93 (50.5%). B symptoms were present in 15/93 (16.1%). From January 2009 until December 2020, 55 (59%) patients diagnosed with Hodgkin lymphoma were treated according to European Network for Pediatric Hodgkin Lymphoma (EURONET)-PHL-C1 protocol. Concerning outcome, a total of 89/93 patients are alive. Relapse occurred in 7/93. Second malignancies are reported in a total of 5 patients, 3 solid tumors (thyroid cancer, breast cancer, and osteosarcoma), and 2 acute myeloid leukemias. The overall survival and event-free survival for the whole cohort were 95.7% and 83.9%, respectively. Disease-free survival was 92.5%. Although a considerable high fraction of patients with Hodgkin disease can achieve continuous complete remission, they are at a high risk of developing long-term treatment-related complications. High curative rates as well as prevention of late effects can be achieved by implementation of individualized treatment strategies and innovative treatments.
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Affiliation(s)
| | | | - Andromachi Papagianni
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
| | - George Arsos
- Third Department of Nuclear Medicine, School of Medicine, Aristotle University of Thessaloniki, Papageorgiou General Hospital, Thessaloniki
| | - Maria Ioannidou
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
| | | | | | - Maria Palabougiouki
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
| | | | | | - Triantafyllia Κoletsa
- Pathology Department, Faculty of Medicine, Aristotle University of Thessaloniki, University Campus, Greece
| | - Angeliki Cheva
- Pathology Department, Faculty of Medicine, Aristotle University of Thessaloniki, University Campus, Greece
| | | | | | - Athanasios Tragiannidis
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
| | - Assimina Galli-Tsinopoulou
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
| | - Emmanuel Hatzipantelis
- Children & Adolescent Hematology-Oncology Unit, Second Department of Pediatrics, School of Medicine, Aristotle University of Thessaloniki
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Agorastos T, Chatzistamatiou K, Tsertanidou A, Mouchtaropoulou E, Pasentsis K, Kitsou A, Moysiadis T, Moschaki V, Skenderi A, Katsiki E, Aggelidou S, Venizelos I, Ntoula M, Daponte A, Vanakara P, Garas A, Stefos T, Vrekoussis T, Lymberis V, Kontomanolis EN, Makrigiannakis A, Manidakis G, Deligeoroglou E, Panoskaltsis T, Decavalas GO, Michail G, Kalogiannidis I, Koukoulis G, Zempili P, Halatsi D, Truva T, Piha V, Agelena G, Chronopoulou A, Vaitsi V, Chatzaki E, Paschopoulos M, Adonakis G, Kaufmann AM, Hadzidimitriou A, Stamatopoulos K. Implementation of HPV-based Cervical Cancer Screening Combined with Self-sampling Using a Midwifery Network Across Rural Greece: The GRECOSELF Study. Cancer Prev Res (Phila) 2019; 12:701-710. [DOI: 10.1158/1940-6207.capr-19-0192] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/24/2019] [Accepted: 08/08/2019] [Indexed: 11/16/2022]
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Tamiolakis D, Venizelos I, Kotini A, Nikolaidou S, Papadopoulos N. Prevalence of CD8/CD4 Ratio in the Fetal Thymic Parenchyme in Down’s Syndrome. Acta Med (Hradec Kralove, Czech Repub ) 2019. [DOI: 10.14712/18059694.2019.30] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Aim: The maturation of most T- lymphocyte precursors takes place within the meshwork of thymic epithelial cells. Different steps of this process can be defined by immunologic phenotyping. The prothymocytes are positive for the terminal deoxynucleotidyl transferase (TdT) and give rise to cortical thymocytes, which express CD1, CD2, CD3, CD5, and both CD4 and CD8. These CD4 and CD8 double-positive cortical thymocytes differentiate into two lineages: CD4+ or CD8+ lymphocytes of the thymic medulla, by the tenth week of gestation. Our study points towards the determination of the CD8 cytotoxic/suppressor capacity of the fetal thymus in Down’s syndrome. Experimental design: A quantitative comparison of T-lymphocytes (CD3, CD4, and CD8) in the thymic parenchyme in embryos after voluntary abortion during 2nd trimester of gestation and embryos with Down’s syndrome, respectively, was performed. Results: Our results showed: 1) A statistically significant depletion in the total number of T-cells (CD3 positive) in the cases of embryos with Down’s syndrome over those after voluntary abortion, during the second trimester of gestation (p<0.0001, t-test). 2) A significant difference in the CD8/CD4 ratio in the cases of embryos with Down’s syndrome, during the second trimester of gestation which was numerically stronger with the progress of fetal development (20th week: p<0.025; 24th week: p<0.01, chi-square). Conclusions: The occurrence of increased CD8/CD4 ratio in the cases with Down’s syndrome, in the second trimester of gestation, underlines the cytotoxic / suppressor property of the thymus in the affected fetuses.
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Tamiolakis D, Venizelos I, Lambropoulou M, Jivannakis T, Seliniotaki E, Tsikouras P, Limberis V, Tsalkidis A, Papadopoulos N. Gains and Losses of HLA Class II (DR) and CD4 in Atypical Hyperplasia, Carcinoma in situ and Infiltrating Ductal Carcinoma of the Breast. Acta Med (Hradec Kralove, Czech Repub ) 2018. [DOI: 10.14712/18059694.2018.101] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Aim: Breast cancer is a frequent cause of death among women with gynaecologic malignancies despite the introduction of combination chemotherapy. There is therefore a need for new therapeutic strategies for patients with breast cancer, such as cellular immunotherapy. In this immunohistochemical study we analyzed the epithelial expression of major histocompatibility complex (MHC) class II (HLA-DR) on atypical and malignant primary mammary epithelial cells, as well as the magnitude of the stromal T lymphocytes (T4 subset) at the tumor site. Experimental design: The study was carried out retrospectively in tumor tissue from 82 patients with mammary lesions (31 cases of atypical ductal hyperplasia -ADH-, 12 cases of ductal carcinoma in situ –DCIS- and 39 cases of infiltrating ductal carcinoma not otherwise specified -IDC-NOS). Medullary carcinomas were not included in our investigation. Material used had been formalin fixed and paraffin embedded. Results: HLA class II (DR) was expressed in 20 of 31 ADHs (64.5%), in 4 of 12 DCISs (33.3%), and in 10 of 39 IDC-NOSs (25.6%). CD4 was expressed in 9 of 31 ADHs (29%), in 5 of 12 DCISs (42%), and in 26 of 39 IDCNOSs (67%). Conclusions: The results showed decreased epithelial expression of HLA class II (DR) and increased stromal expression of CD4, as the lesion progressed to malignancy. Gradual loss of epithelial HLA class II expression might be a manifestation of cellular differentiation from the atypical form versus the malignant one, signaling simultaneously a selective effect on the response capacity of the immune system.
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Kountouras J, Doulberis M, Polyzos SA, Papaefthymiou A, Kapetanakis N, Arapoglou S, Venizelos I, Vardaka E, Kotronis G, Anastasiadis S, Katsinelos P. Potential Impact of Active Helicobacter pylori Infection with or without Concomitant Metabolic Syndrome on Colorectal Cancer Invasion and Mortality. Isr Med Assoc J 2018; 20:725-726. [PMID: 30430809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- Jannis Kountouras
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Michael Doulberis
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
- Department of General Internal Medicine, University Hospital Inselspital Bern, Bern, Switzerland
| | - Stergios A Polyzos
- First Department of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Nikolaos Kapetanakis
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Stergios Arapoglou
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Ioannis Venizelos
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Elizabeth Vardaka
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Georgios Kotronis
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Sotirios Anastasiadis
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
| | - Panagiotis Katsinelos
- Department of Medicine, Second Medical Clinic, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Macedonia, Greece
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Apalla Z, Nikolaidou C, Lallas A, Sotiriou E, Lazaridou E, Venizelos I, Bobos M, Vakirlis E, Ioannides D, Ferrara G. Clinicopathologically problematic melanocytic tumors: a case-based review. Dermatol Pract Concept 2018; 8:306-313. [PMID: 30479862 PMCID: PMC6246059 DOI: 10.5826/dpc.0804a12] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/31/2018] [Indexed: 01/31/2023] Open
Abstract
Background In spite of recent advances in the histopathological and molecular diagnosis of melanocytic neoplasms, a certain proportion of these lesions remain a daunting challenge for both the clinician and the pathologist. Objectives To emphasize the importance of close collaboration between clinicians and pathologists in case of problematic melanocytic lesions. Patients We report and discuss 5 problematic scenarios of melanocytic lesions, including tumoral melanosis, nevoid melanoma, lentiginous melanoma, spitzoid melanoma and BAPoma that may pose diagnostic difficulties in our practice. Conclusions Clinico-dermoscopic-pathological correlation, with incorporation of all the available data, in problematic melanocytic skin neoplasms is of paramount importance for accurate diagnosis.
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Affiliation(s)
- Zoe Apalla
- First Dermatology Department, Aristotle University of Thessaloniki, Greece
| | - Christina Nikolaidou
- First Dermatology Department, Aristotle University of Thessaloniki, Greece.,Anatomic Pathology Unit, Hippokration Hospital, Thessaloniki, Greece
| | - Aimilios Lallas
- First Dermatology Department, Aristotle University of Thessaloniki, Greece
| | - Elena Sotiriou
- First Dermatology Department, Aristotle University of Thessaloniki, Greece
| | | | - Ioannis Venizelos
- Anatomic Pathology Unit, Hippokration Hospital, Thessaloniki, Greece
| | - Mattheos Bobos
- Microdiagnostics Pathology Laboratory, Thessaloniki, Greece
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Micha AE, Psarras K, Ouroumidis O, Siska E, Vlachaki E, Lymperopoulos A, Symeonidis N, Nikolaidou C, Venizelos I, Koliakos G, Pavlidis TE. A Time Course of Bevacizumab (Anti-VEGF) Effect on Rat Peritoneum: Relations Between Antiadhesive Action and Fibrin Regulation Enzymes. Surg Innov 2017; 24:543-551. [PMID: 28877644 DOI: 10.1177/1553350617729510] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND To investigate the early and late antiadhesive effect and any changes of fibrin matrix regulation enzymes on rat peritoneum, after local administration of bevacizumab. METHODS Rats were subjected to cecal abrasion. Bevacizumab (5 mg/kg) against placebo was given intraperitoneally. On the 2nd, 14th, and 28th postoperative days adhesions were scored, and tissue plasminogen activator (tPA), plasminogen activator inhibitor-1 (PAI-1), matrix metalloproteinase-9 (MMP-9), degree of fibrosis, and angiogenesis were measured in abrased cecum and in intact parietal peritoneum. RESULTS Bevacizumab significantly reduced adhesions up to 15% on the 2nd, 52.5% on the 14th, and 55% on the 28th postoperative day, and significantly increased tPA concentrations in peritoneum. PAI-1 was decreased, and a significantly higher tPA/PAI-1 ratio along with an increase of MMP-9 was measured at all time points. Fibrosis and angiogenesis were significantly lower on the 14th and 28th postoperative days. CONCLUSIONS Local bevacizumab administration has a strong early and late antiadhesive action on rat peritoneum, mediated by changes in the tPA/PAI-1 and MMP balance in favor of fibrinolysis up to 28 days after operations.
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Affiliation(s)
| | | | | | - Evangelia Siska
- 1 Aristotle University School of Medicine, Thessaloniki, Greece
| | | | | | | | | | | | - George Koliakos
- 1 Aristotle University School of Medicine, Thessaloniki, Greece
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Petrakis G, Kostopoulos I, Venizelos I, Lambropoulou M, Vouras K, Vakalopoulou S, Mandala E, Tsatalas C, Papadopoulos N. Expression of the activation markers Blimp1, Foxp1 and pStat3 in extranodal diffuse large B-cell lymphomas. Histol Histopathol 2016; 32:825-834. [PMID: 27924626 DOI: 10.14670/hh-11-852] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Different studies have suggested that the expression of biomarkers related to lymphoid cell activation may provide information on the behavior of DLBCL. Most studies have concentrated on nodal or a mixture of nodal and extranodal lymphomas. The differential expression and potential clinical impact of these markers in a homogeneous group of extranodal DLBCLs are not well defined. In this study, we investigated the expression of three activation markers, Blimp1, Foxp1 and pStat3, in a cohort of 35 extranodal DLBCLs homogeneously treated with R-CHOP. Immunohistochemical stains were evaluated using an immunoreactivity score on representative paraffin sections. Blimp1 was positive in 55% (19/35), Foxp1 in 60% (21/35), and pStat3 in 69% (24/35) of our cases. We did not observe any statistical differences in the expression of these markers in GCB and non-GCB tumors or in gastrointestinal and non-gastrointestinal tumors. Blimp1 expression was negatively correlated with overall survival (OS) (p=0.001) in the whole series and in the non-GCB group (Muris algorithm) (p=0.002). Foxp1 positivity and pStat3 positivity had no impact on the outcome of the patients in the global cohort, but they were associated with a better survival in the non-GCB subgroup (p=0.033, p=0.044 respectively). Multivariate analysis showed that Blimp1 expression but not COO was an independent negative prognostic factor for OS (HR=17.5, 95%, CI=2.2-141.1, p=0.007). Our results suggest that these markers are differentially expressed and have different impacts on outcome in extranodal DLBCLs compared to nodal tumors, emphasizing the need to evaluate separately these and probably other markers in these subsets of tumors.
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Affiliation(s)
- Georgios Petrakis
- Histology - Embryology Department, Medical School, Democritus University of Thrace, Alexandroupolis, Greece. .,Pathology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Kostopoulos
- Pathology Department, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Venizelos
- Pathology Department of Hippokration Hospital of Thessaloniki, Thessaloniki, Greece
| | - Maria Lambropoulou
- Histology - Embryology Department, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Kyriakos Vouras
- School of Mathematics, Faculty of Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Sofia Vakalopoulou
- Hematology Department, Hippokration Hospital of Thessaloniki, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Eudokia Mandala
- Fourth Department of Medicine, Hippokration Hospital of Thessaloniki, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Constantinos Tsatalas
- Hematology Department, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
| | - Nicolas Papadopoulos
- Histology - Embryology Department, Medical School, Democritus University of Thrace, Alexandroupolis, Greece
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Deliligka A, Raikos N, Chatzinikolaou F, Venizelos I, Chatzopoulos K, Goulas A. Potential use of pericardial cTnI, Mg 2+ and Ca 2+ in the forensic investigation of seawater drowning in Greece: An initial assessment. Leg Med (Tokyo) 2016; 23:30-33. [PMID: 27890099 DOI: 10.1016/j.legalmed.2016.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 08/29/2016] [Accepted: 09/05/2016] [Indexed: 11/26/2022]
Abstract
The investigation of drowning constitutes one of the biggest problems in forensic practice. Elevated cardiac troponin I (cTnI) levels in biological fluids have been associated with myocardial damage, whereas increased Mg2+ and Ca2+ levels were found in cases of seawater drowning. The aim of this study was to examine the diagnostic utility of postmortem determination of cTnI, Mg2+ and Ca2+ in the pericardial fluid, in differentiating between cases of seawater drowning related to myocardial injury and those brought about by other causes. This study included 76 cases selected during a 2-year period from medicolegal autopsies. The cases were divided into three groups, according to the cause of death established based on macroscopic and microscopic evidence. The groups were: 1) seawater drowning (n=23), 2) seawater drowning with histological evidence of myocardial infarction (n=28), and 3) myocardial infarction unrelated to drowning (n=25). cTnI was determined with an enzyme immunoassay; Mg2+ and Ca2+ with standard colorimetric assays. Pericardial cTnI levels were significantly lower in group 1 compared to groups 2 and 3. In contrast, pericardial Mg2+ and Ca2+ levels were both significantly higher in groups 1 and 2 compared to group 3. Our results suggest that the postmortem determination of pericardial cTnI levels may be useful in detecting previous myocardial damage as a contributory factor in death from seawater drowning and provide independent confirmation of the usefulness of pericardial Mg2+ and Ca2+ levels for differentiating between seawater drowning and fatal acute myocardial injury unrelated to the former.
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Affiliation(s)
- Aspasia Deliligka
- Department of Forensic Medicine & Toxicology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Nikolaos Raikos
- Department of Forensic Medicine & Toxicology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Fotios Chatzinikolaou
- Department of Forensic Medicine & Toxicology, Faculty of Medicine, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece
| | - Ioannis Venizelos
- Department of Pathology, Hippokration General Hospital, Thessaloniki 54642, Greece
| | | | - Antonis Goulas
- 1st Laboratory of Pharmacology, Medical School, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
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Kountouras J, Polyzos SA, Gavalas E, Boziki M, Katsinelos P, Zeglinas C, Vardaka E, Kountouras C, Venizelos I, Anastasiadis S, Deretzi G. A potential impact of Helicobacter pylori infection on minimal hepatic encephalopathy pathobiology. JGLD 2016; 25:405-6. [DOI: 10.15403/jgld.2014.1121.253.pyl] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Deretzi G, Gavalas E, Boziki M, Tsiptsios D, Polyzos SA, Venizelos I, Zavos C, Koutlas E, Tsiptsios I, Katsinelos P, Kountouras J. Impact of Helicobacter pylori on multiple sclerosis-related clinically isolated syndrome. Acta Neurol Scand 2016; 133:268-75. [PMID: 26079721 DOI: 10.1111/ane.12453] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/26/2015] [Indexed: 12/11/2022]
Abstract
OBJECTIVES There are no data regarding the relationship between Helicobacter pylori infection (Hp-I) and clinically isolated syndrome (CIS) suggestive of multiple sclerosis. The purpose of this pilot study was to investigate the association between active Hp-I, confirmed by histology, and CIS and to evaluate the impact of Hp eradication on the CIS clinical course. MATERIAL AND METHODS We conducted a study on 48 patients with CIS and 20 matched controls. At baseline, apart from histology, serum anti-Hp-specific IgG titer, inflammatory mediators, and HLA-A, HLA-B, HLA-DR genetic polymorphisms were estimated. Hp-positive patients received standard triple eradication regimen, and all patients were followed up for 2 years. RESULTS The prevalence of Hp-I was significantly higher in patients with CIS (43/48, 89.6%) than in control (10/20, 50%) (P < 0.001, OR: 8.6, 95% CI: 2.4-30.8). When compared with controls, patients with CIS also showed significantly higher serum anti-Hp IgG titer and HLA-A26, HLA-A30, and HLA-B57 frequencies. Hp-positive patients also showed higher serum concentrations of inflammatory cytokines and homocysteine. At 2-year clinical endpoint, in the subgroup of CIS patients with successful Hp eradication, the number of patients who presented with a second episode was significantly lower accompanied by significant improvement in mean Expanded Disability Status Scale score. CONCLUSIONS Hp-I seems more frequent in a Greek CIS cohort and its eradication might delay CIS progression, suggesting a possible link between Hp-I and CIS.
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Affiliation(s)
- G. Deretzi
- Multiple Sclerosis Unit; Department of Neurology; “Papageorgiou” Hospital; Thessaloniki Greece
| | - E. Gavalas
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
| | - M. Boziki
- 2nd Department of Neurology; AHEPA University Hospital; Aristotle University of Thessaloniki; Thessaloniki Greece
| | - D. Tsiptsios
- Multiple Sclerosis Unit; Department of Neurology; “Papageorgiou” Hospital; Thessaloniki Greece
| | - S. A. Polyzos
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
| | - I. Venizelos
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
| | - C. Zavos
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
| | - E. Koutlas
- Multiple Sclerosis Unit; Department of Neurology; “Papageorgiou” Hospital; Thessaloniki Greece
| | - I. Tsiptsios
- Multiple Sclerosis Unit; Department of Neurology; “Papageorgiou” Hospital; Thessaloniki Greece
| | - P. Katsinelos
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
| | - J. Kountouras
- Department of Medicine; Second Medical Clinic; Aristotle University of Thessaloniki; Ippokration Hospital; Thessaloniki Greece
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Mavroudis N, Rafailidis S, Symeonidis N, Aimoniotou E, Antonopoulos V, Evgenidis N, Venizelos I, Sakadamis A. Carcinoid of the Ampulla of Vater-Report of two Cases. Acta Chir Belg 2016. [DOI: 10.1080/00015458.2005.11679703] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- N. Mavroudis
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
| | - S. Rafailidis
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
| | - N. Symeonidis
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
| | - E. Aimoniotou
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
| | - V. Antonopoulos
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
| | - N. Evgenidis
- Aristotelian University of Thessaloniki; 2nd Propedeutical Department of Internal Medicine, Hippokration General Hospital, Thessaloniki, Greece
| | - I. Venizelos
- Aristotelian University of Thessaloniki; Department of Pathology, Hippokration General Hospital, Thessaloniki, Greece
| | - A. Sakadamis
- 2nd Propedeutical Department of Surgery, Hippokration General Hospital, Thessaloniki, Greece
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Sousos N, Vlachaki E, Anastasiadou K, Boura P, Venizelos I, Chatzimavroudis G, Katsinelos P. Diffuse gastric plasmacytoma involvement in multiple myeloma. Endoscopy 2016; 47 Suppl 1 UCTN:E197. [PMID: 26062145 DOI: 10.1055/s-0034-1377537] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Nikolaos Sousos
- Hematology Laboratory, Second Department of Internal Medicine, Aristotle University of Thessaloniki, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
| | - Efthimia Vlachaki
- Hematology Laboratory, Second Department of Internal Medicine, Aristotle University of Thessaloniki, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
| | - Kyriaki Anastasiadou
- Second Department of Internal Medicine, Aristotle University of Thessaloniki, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
| | - Panagiota Boura
- Second Department of Internal Medicine, Aristotle University of Thessaloniki, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
| | - Ioannis Venizelos
- Department of Pathology, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
| | - Grigoris Chatzimavroudis
- Department of Endoscopy and Motility Unit, General Hospital of Thessaloniki "G. Gennimatas," Thessaloniki, Greece
| | - Panagiotis Katsinelos
- Second Department of Internal Medicine, Aristotle University of Thessaloniki, General Hospital of Thessaloniki "Ippokratio," Thessaloniki, Greece
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Kountouras J, Tsiaousi E, Trigonis S, Polyzos SA, Katsinelos P, Zavos C, Vardaka E, Kountouras C, Gavalas E, Anastasiadou K, Vlachaki E, Boziki M, Zeglinas C, Venizelos I, Deretzi G. Comment on "The correlation of Helicobacter pylori with the development of cholelithiasis and cholecystitis: the results of a prospective clinical study in Saudi Arabia". Eur Rev Med Pharmacol Sci 2016; 20:3-4. [PMID: 26813445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- J Kountouras
- Department of Gastroenterology, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Macedonia, Greece.
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Kalogiannidis I, Stavrakis T, Dagklis T, Petousis S, Nikolaidou C, Venizelos I, Rousso D. A clinicopathological study of atypical leiomyomas: Benign variant leiomyoma or smooth-muscle tumor of uncertain malignant potential. Oncol Lett 2015; 11:1425-1428. [PMID: 26893755 DOI: 10.3892/ol.2015.4062] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2014] [Accepted: 06/25/2015] [Indexed: 12/17/2022] Open
Abstract
Atypical leiomyomas are histopathologically recognized by moderate to severe pleomorphic atypical tumor cells showing low mitotic counts without coagulative tumor cell necrosis. The histopathological features and clinical behavior of these tumors are unclear. The surgical management of these lesions includes myomectomy and hysterectomy. The current study presents 5 cases of women with atypical leiomyomas that were managed surgically. The clinicopathological characteristics of the patients and recurrences were analyzed. The median age of the patients was 43 years old. While 3 out of 5 patients were treated by hysterectomy (with or without salpingo-oophorectomy), the remaining 2 patients were treated by myomectomy. The median mitotic index was 3 mitotic figures/10 high-power fields. The post-operative course of all patients was uneventful, and there was no evidence of local or distant recurrence in a median follow-up time of 72 months. The treatment of choice for atypical leiomyomas is hysterectomy. However, myomectomy may be an option for fertility sparing cases. A thorough consultation with regard to the uncertain behavior of such tumors and a rigorous follow-up must be offered in such patients.
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Affiliation(s)
- Ioannis Kalogiannidis
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki 54642, Greece
| | - Thomas Stavrakis
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki 54642, Greece
| | - Themistoklis Dagklis
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki 54642, Greece
| | - Stamatios Petousis
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki 54642, Greece
| | - Christina Nikolaidou
- Department of Pathology, Hippokration General Hospital, Thessaloniki 54642, Greece
| | - Ioannis Venizelos
- Department of Pathology, Hippokration General Hospital, Thessaloniki 54642, Greece
| | - David Rousso
- Third Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Thessaloniki 54642, Greece
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16
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Gavalas E, Kountouras J, Boziki M, Zavos C, Polyzos SA, Vlachaki E, Venizelos I, Tsiptsios D, Deretzi G. Relationship between Helicobacter pylori infection and multiple sclerosis. Ann Gastroenterol 2015; 28:353-356. [PMID: 26126617 PMCID: PMC4480172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 12/01/2014] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Recent data indicate the presence of immunomodulating properties of Helicobacter pylori (Hp) (Hp Sydney Strain-1 antigen) in an experimental model of multiple sclerosis (MS), and there are limited contradictory epidemiologic data regarding Hp serology in MS patients. METHODS The aim of this prospective, comparative study was to validate the incidence of active Hp infection by histology and the endoscopic abnormalities, in 44 patients with relapsing-remitting MS and 20 anemic controls. RESULTS The overall prevalence of histologically confirmed active Hp infection in 44 MS patients was 86.4% vs. 50% in 20 matched anemic control participants (P=0.002, odds ratio 6.33, 95%CI 1.85-21.64). Concomitant diseases of autoimmune origin including hypothyroidism and ulcerative colitis were exclusively present in MS patients. Moreover, a trend of increased presence of pathological endoscopic findings such as hiatus hernia, Barrett's esophagus and duodenal ulcer disease was observed in MS patients compared with controls; Barrett's esophagus and duodenal ulcers were exclusively observed in MS patients. Likewise, Hp (+) MS patients showed exclusive presence of hiatus hernia, esophagitis and duodenal ulcer disease compared with Hp (-) MS patients. CONCLUSION Hp infection appears to be more frequent in MS patients. If confirmed, this might indicate either a common factor that causes susceptibilities to both MS and Hp infection or that Hp might be a causal factor for developing MS. If a causal link between Hp infection and MS is confirmed in the future, this may have a major impact on the pathophysiology and management of MS.
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Affiliation(s)
- Emmanuel Gavalas
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece,
Correspondence to: Emmanuel Gavalas, MD, PhD, 5 K. Karamanli St, Kalamaria, 55132, Thessaloniki, Macedonia, Greece, Tel.: +30 2310 892238, Fax: +30 2310 992794, e-mail: ,
| | - Jannis Kountouras
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece
| | - Marina Boziki
- B’ Department of Neurology, AHEPA University Hospital, Aristotle University of Thessaloniki (Marina Boziki), Thessaloniki, Greece
| | - Christos Zavos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece
| | - Stergios A. Polyzos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece
| | - Efthymia Vlachaki
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece
| | - Ioannis Venizelos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital (Emmanuel Gavalas, Jannis Kountouras, Christos Zavos, Stergios A. Polyzos, Efthymia Vlachaki, Ioannis Venizelos), Thessaloniki, Greece
| | - Dimitrios Tsiptsios
- Department of Neurology, “Papageorgiou” Hospital (Dimitrios Tsiptsios, Georgia Deretzi), Thessaloniki, Greece
| | - Georgia Deretzi
- Department of Neurology, “Papageorgiou” Hospital (Dimitrios Tsiptsios, Georgia Deretzi), Thessaloniki, Greece
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17
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Baltatzis M, Pavlidis TE, Ouroumidis O, Koliakos G, Nikolaidou C, Venizelos I, Michopoulou A, Sakantamis A. Aprotinin reduces oxidative stress induced by pneumoperitoneum in rats. J Surg Res 2014; 189:238-48. [PMID: 24674839 DOI: 10.1016/j.jss.2014.02.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Revised: 02/17/2014] [Accepted: 02/20/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Ischemia-reperfusion injury induced by pneumoperitoneum is a well-studied entity, which increases oxidative stress during laparoscopic operations. The reported anti-inflammatory action of aprotinin was measured in a pneumoperitoneum model in rats for the first time in this study. MATERIALS AND METHODS A total of 60 male Albino Wistar rats were used in our protocol. Prolonged pneumoperitoneum (4 h) was applied, causing splanchnic ischemia and a period of reperfusion with a duration of 60 or 180 min followed. Several cytokines and markers of oxidative stress were measured in liver, small intestine, and lungs to compare the aprotinin group with the control group. Tissue inflammation was also evaluated and compared between groups using a five-scaled histopathologic score. RESULTS In aprotinin group values of biochemical markers (tumor necrosis factor α, interleukin 6, endothelin 1, C reactive protein, pro-oxidant-antioxidant balance, and carbonyl proteins) were lower in all tissues studied. Statistical significance was greater in liver and lungs (P < 0.05). Histopathologic examination revealed significant difference between control and aprotinin groups in all tissues examined. Aprotinin groups showed mild to moderate lesions, while in control groups severe to very severe inflammation was present. Aprotinin subgroup with prolonged reperfusion period (180 min) showed milder lesions in all tissues than the rest of the groups. CONCLUSIONS Aprotinin reduced inflammatory response and oxidative stress induced by pneumoperitoneum in liver, small intestine, and lungs.
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Affiliation(s)
- Minas Baltatzis
- Second Propedeutical Department of Surgery, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece.
| | - Theodoros E Pavlidis
- Second Propedeutical Department of Surgery, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Odysseas Ouroumidis
- Second Propedeutical Department of Surgery, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Georgios Koliakos
- Department of Biochemistry, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | | | - Ioannis Venizelos
- Department of Pathology, Hippocration Hospital, Thessaloniki, Greece
| | - Anna Michopoulou
- Department of Biochemistry, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Athanasios Sakantamis
- Second Propedeutical Department of Surgery, Medical School, Aristotle University of Thessaloniki, Thessaloniki, Greece
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18
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Kountouras J, Kapetanakis N, Zavos C, Polyzos SA, Kouklakis G, Venizelos I, Nikolaidou C, Tzilves D, Paikos D, Katsinelos P, Giouleme O, Soufleris K. Active Helicobacter pylori infection is associated with colorectal mucosa-adenomatous polyp--early and advanced adenocarcinoma sequence. Scand J Gastroenterol 2014; 49:381-2. [PMID: 24299055 DOI: 10.3109/00365521.2013.869351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Jannis Kountouras
- Department of Gastroenterology, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital , Thessaloniki , Greece
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19
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Kountouras J, Kapetanakis N, Zavos C, Polyzos SA, Romiopoulos I, Tsiaousi E, Anastasiadou K, Giorgakis N, Vardaka E, Nikolaidou C, Venizelos I, Katsinelos P. Helicobacter pylori might contribute to cancer and/or bone marrow-derived stem cell-related gastrointestinal oncogenesis. Oncogene 2014; 34:670. [PMID: 24469039 DOI: 10.1038/onc.2013.602] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- J Kountouras
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - N Kapetanakis
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - C Zavos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - S A Polyzos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - I Romiopoulos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - E Tsiaousi
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - K Anastasiadou
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - N Giorgakis
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - E Vardaka
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - C Nikolaidou
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - I Venizelos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - P Katsinelos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
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Ioannou M, Pyrpasopoulou A, Simos G, Paraskeva E, Nikolaidou C, Venizelos I, Koukoulis G, Aslanidis S, Douma S. Upregulation of VEGF expression is associated with accumulation of HIF-1α in the skin of naïve scleroderma patients. Mod Rheumatol 2014. [DOI: 10.3109/s10165-012-0787-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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21
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Kountouras J, Kapetanakis N, Zavos C, Polyzos SA, Vardaka E, Katsinelos P, Romiopoulos I, Anastasiadou K, Giorgakis N, Nikolaidou C, Venizelos I. Helicobacter pylori and Colorectal Cancer Risk—Letter. Cancer Epidemiol Biomarkers Prev 2013; 23:365. [DOI: 10.1158/1055-9965.epi-13-1008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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22
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Ioannou M, Pyrpasopoulou A, Simos G, Paraskeva E, Nikolaidou C, Venizelos I, Koukoulis G, Aslanidis S, Douma S. AB0246 Upregulation of VEGF expression is associated with accumulation of HIF-1A in the skin of scleroderma patients. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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23
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Kountouras J, Kapetanakis N, Zavos C, Romiopoulos I, Polyzos SA, Tsiaousi E, Michael S, Vardaka E, Nikolaidou C, Venizelos I, Katsinelos P. Impact of Helicobacter pylori Infection on colon oncogenesis. Am J Gastroenterol 2013; 108:625-6. [PMID: 23552319 DOI: 10.1038/ajg.2013.17] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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24
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Kountouras J, Zavos C, Deretzi G, Vardaka E, Boziki M, Gavalas E, Kouklakis G, Katsinelos P, Venizelos I, Nikolaidou C, Polyzos SA, Giartza-Taxidou E. Helicobacter pylori induced cognitive dysfunction might be associated with falls and fractures in cirrhosis. Hepatology 2013; 57:1284. [PMID: 22745033 DOI: 10.1002/hep.25926] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/04/2012] [Indexed: 01/06/2023]
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25
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Kapetanakis N, Kountouras J, Zavos C, Anastasiadou K, Tsarouchas G, Michael S, Gavalas E, Tsiaousi E, Polyzos SA, Venizelos I, Nikolaidou C, Vardaka E. Potential oncogenic properties of mobilized stem cells in a subpopulation of inflammatory bowel disease patients infected with Helicobacter pylori. Inflamm Bowel Dis 2013; 19:E27-9. [PMID: 22344973 DOI: 10.1002/ibd.22911] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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26
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Kapetanakis N, Kountouras J, Zavos C, Polyzos SA, Kouklakis G, Venizelos I, Nikolaidou C, Vardaka E, Paikos D, Katsinelos P, Romiopoulos I. Helicobacter pylori infection and colorectal carcinoma: pathologic aspects. J Gastrointest Oncol 2012. [PMID: 23205317 DOI: 10.3978/j.issn.2078-6891.2012.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Affiliation(s)
- Nikolaos Kapetanakis
- Department of Gastroenterology, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
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27
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Ioannou M, Pyrpasopoulou A, Simos G, Paraskeva E, Nikolaidou C, Venizelos I, Koukoulis G, Aslanidis S, Douma S. Upregulation of VEGF expression is associated with accumulation of HIF-1α in the skin of naïve scleroderma patients. Mod Rheumatol 2012; 23:1245-8. [PMID: 23096096 DOI: 10.1007/s10165-012-0787-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Accepted: 10/11/2012] [Indexed: 10/27/2022]
Abstract
Systemic sclerosis is a disease hallmarked by microangiopathy; the enlargement and leakage of skin capillaries in active stages develops into extensive avascular areas, clinically associated with severe tissue hypoxia and the formation of digital ulcers. Vascular endothelial growth factor (VEGF) is upregulated in all stages of the disease, with little effect on efficient neovascularization. The oxygen-regulated α-subunit of hypoxia-inducible transcription factor-1 (HIF-1α) represents a key mechanism involved in the transcriptional regulation of VEGF. The aim of this study is to investigate expression of the oxygen-regulated α-subunit of HIF-1 and VEGF in naïve scleroderma patients. For this purpose, skin biopsies (dorsal hand surface) from scleroderma patients were analyzed and compared with control skin biopsies. Immunoreactivity for VEGF was enhanced in scleroderma patients, in contrast to restricted positive immunostaining in suprabasal keratinocytes observed in normal skin. In a similar fashion, all skin biopsies from scleroderma patients were strongly HIF-1α reactive, compared with rare immunoreactivity observed in normal skin. The pattern was similar in all stages of scleroderma. These observations for the first time directly connect constitutive hypoxia with VEGF upregulation in scleroderma patients. The sequence of events needs to be precisely mapped, and the pro- and antiangiogenic switches which may interfere with efficient tissue neovascularization identified, in order to provide meaningful therapeutic strategies.
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Affiliation(s)
- Maria Ioannou
- Medical School, University of Thessaly, Larisa, Greece
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28
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Kapetanakis N, Kountouras J, Zavos C, Michael S, Tsarouchas G, Gavalas E, Anastasiadou K, Tsiaousi E, Venizelos I, Nikolaidou C, Vardaka E, Kouklakis G, Moschos I. Re: Helicobacter pylori infection and colorectal cancer risk: evidence from a large population-based case-control study in Germany. Am J Epidemiol 2012; 176:566-7. [PMID: 22908208 DOI: 10.1093/aje/kws302] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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29
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Lalountas M, Ballas KD, Michalakis A, Psarras K, Asteriou C, Giakoustidis DE, Nikolaidou C, Venizelos I, Pavlidis TE, Sakantamis AK. Postoperative adhesion prevention using a statin-containing cellulose film in an experimental model. Br J Surg 2012; 99:423-9. [PMID: 22246725 DOI: 10.1002/bjs.7817] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2011] [Indexed: 02/05/2023]
Abstract
BACKGROUND Intraperitoneal adhesions are a common problem in abdominal surgery. The aim of this study was to compare the effectiveness of Statofilm, a novel antiadhesive film based on cross-linked carboxymethylcellulose and atorvastatin, with that of sodium hyaluronate-carboxymethylcellulose (Seprafilm(®)) in the prevention of postoperative intraperitoneal adhesions in rats. METHODS One hundred male Wistar rats underwent a laparotomy and adhesions were induced by caecal abrasion. The animals were allocated to five groups: a control group with no adhesion barrier, Seprafilm(®) group, placebo group with a film containing carboxymethylcellulose without atorvastatin, and low- and high-dose groups with films containing carboxymethylcellulose and atorvastatin 0·125 and 1 mg per kg bodyweight respectively. Adhesions were classified by two independent surgeons 2 weeks after surgery. Caecal biopsies were obtained for histological evaluation of fibrosis, inflammation and vascular proliferation. RESULTS All antiadhesive film groups (Seprafilm(®), placebo, low-dose and high-dose) had statistically significant adhesion reduction compared with the control group (P < 0·001, P = 0·015, P < 0·001 and P < 0·001 respectively). The low-dose Statofilm was superior to Seprafilm(®) in terms of adhesion prevention (P = 0·001). Adhesions were present in three-quarters of rats in the Seprafilm(®) group, but only one-quarter in the low-dose Statofilm group. CONCLUSION The data suggest that the newly developed adhesion barrier Statofilm has better results than Seprafilm(®) in preventing postoperative adhesions in rats. A low-dose atorvastatin-containing film, such as Statofilm, could be evaluated for future clinical application.
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Affiliation(s)
- M Lalountas
- Laboratory of Scientific Research and Experimental Surgery, Second Propedeutical Department of Surgery, Medical School, Aristotle University, and Hippokration General Hospital, Thessaloniki, Greece.
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Kountouras J, Boziki M, Zavos C, Gavalas E, Giartza-Taxidou E, Venizelos I, Deretzi G, Grigoriadis N, Tsiaousi E, Vardaka E. A potential impact of chronic Helicobacter pylori infection on Alzheimer's disease pathobiology and course. Neurobiol Aging 2012; 33:e3-4. [PMID: 22325590 DOI: 10.1016/j.neurobiolaging.2012.01.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2011] [Revised: 12/29/2011] [Accepted: 01/07/2012] [Indexed: 12/29/2022]
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31
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Kountouras J, Zavos C, Deretzi G, Gavalas E, Chatzopoulos D, Katsinelos P, Tsiaousi E, Gagalis S, Polyzos SA, Venizelos I. Potential implications of Helicobacter pylori-related neutrophil-activating protein. World J Gastroenterol 2012; 18:489-90. [PMID: 22346256 PMCID: PMC3270508 DOI: 10.3748/wjg.v18.i5.489] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2011] [Revised: 08/18/2011] [Accepted: 08/27/2011] [Indexed: 02/06/2023] Open
Abstract
Helicobacter pylori (H. pylori) virulence factors promote the release of various chemoattractants/inflammatory mediators, including mainly the neutrophil-attractant chemokine interleukin-8 and neutrophil-activating protein (NAP), involved in H. pylori-induced gastric pathologies. Co-administration of Chios mastic gum (CMG), which inhibits H. pylori NAP, with an H. pylori eradication regimen might add clinical benefits against H. pylori-related gastric pathologies, but possibly not CMG as main therapy. Although H. pylori NAP and other H. pylori-related cytotoxins [i.e., vaculating cytotoxin (VacA)] appear to play a major role in generating and maintaining the H. pylori-associated gastric inflammatory response and H. pylori NAP is a promising vaccine candidate against H. pylori infection (H. pylori-I), concerns regarding its potential drawbacks, particularly neurogenic ones, due to possible cross-mimicry, should be considered. Possible cross-mimicry between H. pylori NAP and/or bacterial aquaporin (AQP) and neural tissues may be associated with the anti-AQP-4 antibody-related neural damage in multiple sclerosis (MS)/neuromyelitis optica patients. Moreover, the sequence homology found between H. pylori VacA and human Na+/K+-ATPase A subunit suggests that antibodies to VacA involve ion channels in abaxonal Schwann cell plasmalemma resulting in demyelination in some patients. A series of factors have been implicated in inducing blood-brain barrier (BBB) disruption, including inflammatory mediators (e.g., cytokines and chemokines induced by H. pylori-I) and oxidative stress. BBB disruption permits access of AQP4-specific antibodies and T lymphocytes to the central nervous system, thereby playing a major role in multiple sclerosis pathogenesis. Relative studies show a strong association between H. pylori-I and MS. H. pylori-I induces humoral and cellular immune responses that, owing to the sharing of homologous epitopes (molecular mimicry), cross-react with components of nerves, thereby contributing and perpetuating neural tissue damage. Finally, H. pylori NAP also plays a possible pathogenetic role in both gastric and colon oncogenesis.
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Papathomas TG, Venizelos I, Dunphy CH, Said JW, Wang ML, Campo E, Swerdlow SH, Chan JC, Bueso-Ramos CE, Weisenburger DD, Medeiros LJ, Young KH. Mantle cell lymphoma as a component of composite lymphoma: clinicopathologic parameters and biologic implications. Hum Pathol 2012; 43:467-80. [PMID: 22221705 DOI: 10.1016/j.humpath.2011.08.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2011] [Revised: 08/30/2011] [Accepted: 08/31/2011] [Indexed: 12/22/2022]
Abstract
Composite lymphoma is a rare circumstance in which 2 or more distinct types of lymphoma occur in a single anatomical location. Although composite lymphoma has been increasingly identified with the advent of molecular genetic techniques, this topic has only rarely been a specific focus of the medical scientific literature. In this review, we focus on mantle cell lymphoma occurring as a major pathologic component of composite lymphoma and emphasize the clinicopathologic features of these tumors and associated biologic implications. To date, 26 cases of composite lymphoma including a component of mantle cell lymphoma have been previously published. Issues of clonal relatedness between the individual lymphoma components and emerging biologic implications as well as potential diagnostic pitfalls are evaluated.
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Affiliation(s)
- Thomas G Papathomas
- Department of Pathology, Hippokration General Hospital of Thessaloniki, 54642 Thessaloniki, Greece
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Zavos C, Kountouras J, Sakkias G, Venizelos I, Deretzi G, Arapoglou S. Histological presence of Helicobacter pylori bacteria in the trabeculum and iris of patients with primary open-angle glaucoma. Ophthalmic Res 2011; 47:150-6. [PMID: 22094712 DOI: 10.1159/000330053] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2010] [Accepted: 06/08/2011] [Indexed: 01/13/2023]
Abstract
PURPOSE To investigate the role of Helicobacter pylori in primary open-angle glaucoma (POAG) pathophysiology by detecting its presence in eye biopsies of POAG patients during trabeculectomy. PATIENTS AND METHODS Fifty-one consecutive patients who underwent trabeculectomy for POAG not responsive to antiglaucoma therapy, and 35 consecutive anemic controls were examined for H. pylori presence mainly by gastric mucosa histology. In POAG patients, eye biopsies were also obtained and stained for H. pylori presence in situ. RESULTS Forty-three of 51 (84.3%) POAG patients and 17 of 35 (48.6%) controls were tested H. pylori positive (p = 0.0004). In 5 H. pylori-positive POAG patients, H. pylori bacteria were identified in the trabeculum and iris specimens. CONCLUSION For the first time, H. pylori bacteria have been detected histologically in eye biopsies of POAG patients.
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Affiliation(s)
- Christos Zavos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
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Fragandreas G, Papadopoulos S, Gerogiannis I, Spyridis C, Tsantilas D, Venizelos I, Gerasimidis T. Epithelial splenic cysts and life-threatening splenic rupture. Chirurgia (Bucur) 2011; 106:519-522. [PMID: 21991879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
BACKGROUND/AIM Primary splenic cysts are relatively uncommon and in the majority of cases are classified as epithelial cysts which are more frequent in young patients. Most of them are asymptomatic, and they are found incidentally during imaging techniques or laparotomy. We report two rare cases of patients with epithelial splenic cysts as an incidental finding during emergency laparotomy for splenic rupture. MATERIALS AND METHOD The first patient was a 70-year-old man who presented with symptoms of acute abdomen after intensive cough during an episode of asthma. Emergency laparotomy findings were splenic rupture and intraperitoneal haemorrhage. A splenectomy was performed and the histological examination showed a ruptured spleen with an epithelial cyst. The second patient was a 19-year-old man who was transferred to the Emergency Department in hypovolemic shock due to intraperitoneal bleeding after a blunt abdominal injury. During laparotomy a splenic rupture was found, and an epithelial cyst. CONCLUSION Epithelial splenic cysts are a rare entity and they can be an incidental finding during the surgical treatment of a spleen rupture and haemoperitoneum. These cysts may be a predisposing factor to splenic rupture in cases of increased intraabdominal pressure or blunt abdominal trauma.
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Affiliation(s)
- G Fragandreas
- 5th Department of Surgery, "Hippokrateion" General Hospital, Aristotle University of Thessaloniki, Greece
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Venizelos I, Anagnostou E, Papathomas T, Spandos V, Marinopoulos D, Tsitsopoulos P, Tsonidis C. A 57-year-old female with a cerebellar mass. Brain Pathol 2011; 21:351-4. [PMID: 21492295 DOI: 10.1111/j.1750-3639.2011.00483.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
A 57-year-old female presented with recurrent episodes of nausea and vomit, as well as instability during walking. The patient had a history of uterine leiomyosarcoma, for which she underwent a hysterectomy and oophorectomy 8 months ago. CT scan revealed a calcified mass that was located in the left cerebellar hemisphere which was resected. Histologically, multiple tissue fragments displayed infiltration of cerebellar tissue by polymorphic spindle-shaped cells. The Ki-67 proliferation index was approximately 20%. The morphological and immunohistochemical data, in association with the past clinical history, were consistent with cerebellar metastasis of uterine leiomyosarcoma. Although adjuvant radiotherapy was introduced, the patient died of cardiopulmonary arrest 6 weeks after the surgical procedure. The present case adds to the body of literature being the second report of uterine leiomyosarcoma metastatic to the cerebellum.
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Affiliation(s)
- Ioannis Venizelos
- Department of Pathology, Hippokration General Hospital of Thessaloniki, Thessaloniki, Greece
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Kountouras J, Zavos C, Gavalas E, Deretzi G, Katsinelos P, Boura P, Polyzos SA, Venizelos I. Helicobacter pylori may be a common denominator associated with systemic and multiple sclerosis. Joint Bone Spine 2011; 78:222-3; author reply 223. [DOI: 10.1016/j.jbspin.2011.01.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2010] [Accepted: 01/07/2011] [Indexed: 11/17/2022]
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Kountouras J, Gavalas E, Deretzi G, Boziki M, Zavos C, Chatzopoulos D, Katsinelos P, Giartza-Taxidou E, Grigoriadis N, Venizelos I. Helicobacter pylori with or without its neutrophil-activating protein may be the common denominator associated with multiple sclerosis and neuromyelitis optica. Mult Scler 2010; 16:376-7; author reply 378-9. [PMID: 20203152 DOI: 10.1177/1352458509360550] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Dimitroulias A, Tsonidis C, Natsis K, Venizelos I, Djau S, Tsitsopoulos P, Tsitsopoulos P. An immunohistochemical study of mechanoreceptors in lumbar spine intervertebral discs. J Clin Neurosci 2010; 17:742-5. [DOI: 10.1016/j.jocn.2009.09.032] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2009] [Revised: 09/05/2009] [Accepted: 09/13/2009] [Indexed: 11/30/2022]
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Nanassis K, Tsitsopoulos PP, Marinopoulos D, Venizelos I, Tsitsopoulos PD. Long-term follow-up of a non-infantile desmoplastic ganglioglioma. ACTA ACUST UNITED AC 2009; 71:50-3. [PMID: 20024887 DOI: 10.1055/s-0029-1241180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Desmoplastic gangliogliomas are mixed cerebral tumors traditionally reported in infants. However, a few non-infantile cases have been documented. A case of a desmoplastic ganglioglioma in a 16-year male is presented. The patient reported severe headaches. Radiological examination revealed a large mass occupying the right frontal lobe. The lesion was totally excised. Histopathological examination confirmed the diagnosis of a desmoplastic ganglioglioma. The postoperative course was excellent. At the 10(1/2) year follow-up there was no evidence of tumor recurrence. Although desmoplastic gangliogliomas have aggressive features, complete surgical removal is the treatment of choice obviating the need for adjuvant therapy.
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Affiliation(s)
- K Nanassis
- Deparment of Neurosurgery, Hippokration General Hospital, Aristotle University, Thessaloniki, Greece
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Zevgaridis D, Tsonidis C, Kapranos N, Venizelos I, Tsitsopoulos P, Tsitsopoulos P. Epstein-Barr virus associated primary intracranial leiomyoma in organ transplant recipient: case report and review of the literature. Acta Neurochir (Wien) 2009; 151:1705-9. [PMID: 19357805 DOI: 10.1007/s00701-009-0307-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2008] [Accepted: 03/23/2009] [Indexed: 11/27/2022]
Abstract
INTRODUCTION A 45 year old female renal transplant recipient presented with headaches of 3 months duration. Clinical and radiological evaluation revealed an approximately 4x4 cm rounded, enhancing mass at the left temporal pole. At surgery, the mass had dural attachment and clinically, radiographically, and macroscopically resembled a meningioma. Histopathological analysis revealed a leiomyoma. Epstein-Barr virus (EBV) DNA was demonstrated within the tumour cell nuclei by the in situ hybridisation technique. DISCUSSION This is the first documentation of an EBV-associated primary intracranial leiomyoma in an organ transplant recipient and provides additional evidence of a possible relation between EBV infection and development of smooth-muscle tumours (SMT). CONCLUSION With increasing numbers of individuals being on long-term immuno-suppression, EBV-associated SMTs may be encountered more frequently in the future.
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Affiliation(s)
- Dimitris Zevgaridis
- Department of Neurosurgery, Medical School of Aristotle University, Hippokration General Hospital, Thessaloniki, Greece.
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Venizelos I, Tatsiou Z, Papathomas TG, Orazi A. Visceral leishmaniasis in a rheumatoid arthritis patient treated with methotrexate. Int J Infect Dis 2009; 13:e169-72. [DOI: 10.1016/j.ijid.2008.09.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2008] [Revised: 08/20/2008] [Accepted: 09/05/2008] [Indexed: 11/28/2022] Open
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Ballas K, Kontoulis TM, Papavasiliou A, Pissas D, Pavlidis T, Katsiki E, Venizelos I, Sakadamis A. A rare case of malignant triton tumor with pluridirectional differentiation. South Med J 2009; 102:435-7. [PMID: 19279515 DOI: 10.1097/smj.0b013e31819bd1d4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
An enlarging soft tissue mass was resected from the leg of a young man with neurofibromatosis type 1. Rhabdomyosarcomatous elements admixed with islands of osteoid and chondroid matrix was seen on microscopy. Based on immunohistochemistry, a malignant triton tumor, an uncommon subtype of peripheral nerve sheath tumor with rhabdomyosarcomatous elements, was diagnosed. The important feature of this neoplasm was that it showed pluridirectional differentiation to osteosarcoma and chondrosarcoma. This pathologic finding is rare and seen in only a few cases of all malignant triton tumors.
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Affiliation(s)
- Konstantinos Ballas
- 2nd Propaedeutic Department of Surgery, Medical Faculty, Aristotle University of Thessaloniki, Greece
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Moralidis E, Mandala E, Venizelos I, Arsos G, Zafiriadu E, Goutzioulis M, Karakatsanis C. A breast fibroadenoma mimicking an extranodal deposit of Hodgkin's lymphoma in 67Ga imaging. Br J Radiol 2009; 82:e58-62. [PMID: 19211906 DOI: 10.1259/bjr/40678458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
We present the case of a young woman with classical nodular sclerosing Hodgkin's lymphoma (clinical stage IIB). During staging work-up, intense gallium-67 ((67)Ga) accumulation in a left breast lump raised the suspicion of an extranodal deposit, but biopsy favoured a benign histology. A post-treatment (67)Ga scan showed complete remission of the disease with normal tracer uptake in the left breast. However, a few months after treatment, a faint left mammary concentration of (67)Ga was observed. The breast mass was excised and histopathology was consistent with fibroadenoma. This unusual presentation is a new addition to the literature on false-positive (67)Ga findings and chemotherapy-associated tracer changes.
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Affiliation(s)
- E Moralidis
- Department of Nuclear Medicine, Aristotle University, Hippokration Hospital, Thessaloniki, Greece.
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Lafaras C, Mandala E, Venizelos I, Valeri R, Barbetakis N, Bischiniotis T. Cardiac tamponade as primary manifestation of angioimmunoblastic T-cell lymphoma (AILT). Coexistence with malignant mesothelioma. ACTA ACUST UNITED AC 2008; 31:546-8. [PMID: 18854655 DOI: 10.1159/000151686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cardiac tamponade (CT) as the primary clinical manifestation of lymphomas is extremely rare. Angioimmunoblastic T-cell lymphoma (AILT) is characterised by systemic disease usually presenting with generalised peripheral lymphadenopathy, hepatosplenomegaly, and bone marrow infiltration. CASE REPORT We report on a 59-year-old male patient with CT as initial clinical manifestation of AILT. Coexistence with malignant pleural mesothelioma was additionally revealed. Cytologic examination of pericardial fluid presented diffuse lymphoid cells and sporadic malignant mesothelial cells. AILT diagnosis was confirmed by thoracoscopic mediastinal lymph node and bone marrow biopsy. Despite the presence of pleural effusion, the diagnosis of mesothelioma was initially established by cytologic ex-amination of pericardial fluid, due to the patient's critical cardiac condition requiring prompt subxiphoid pericardiocentesis. CONCLUSION CT as primary clinical manifestation of AILT is very rare. This case reflects the differences in the underlying biology of AILT and consequently the vast spectrum of its clinical presentations. Coexistence of AILT with malignant pleural mesothelioma is also extremely rare.
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Affiliation(s)
- Christos Lafaras
- Department of Cardiology, Theagenion Cancer Hospital, Thessaloniki, Greece.
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Kita M, Mandala E, Saratzis A, Ventzi L, Venizelos I, Keryttopoulos P, Efstathiadou Z, Garyfallos A, Avramides A. Primary adrenal lymphoma presenting as Addison's disease. Case report and review of the literature. Exp Clin Endocrinol Diabetes 2008; 116:363-5. [PMID: 18700280 DOI: 10.1055/s-2008-1042402] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Primary Adrenal Lymphoma (PAL) is a very rare clinical entity. Adrenal insufficiency is a common complication of this pathology. Most patients present with clinical and laboratory findings of adrenal insufficiency and bilateral enlargement of the adrenal glands. We present a 78-year-old woman admitted to our institution with typical clinical and laboratory findings of adrenal insufficiency. Computerized tomography (CT) of the abdomen revealed bilateral enlargement of the adrenal glands. The patient was eventually diagnosed with a diffuse large B-cell lymphoma after a CT-guided needle adrenal biopsy and treated with combined immuno-chemotherapy (R-LPD-COP). Twenty months after the initial evaluation, she is in good condition, with no signs of adrenal insufficiency.
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Affiliation(s)
- M Kita
- Department of Endocrinology, Hippocratic General Hospital, Thessaloniki, Greece.
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Venizelos I, Papathomas T, Anagnostou E, Tsanakas J, Kirvassilis F, Kontzoglou G. Pediatric inflammatory myofibroblastic tumor of the trachea: a case report and review of the literature. Pediatr Pulmonol 2008; 43:831-5. [PMID: 18615668 DOI: 10.1002/ppul.20869] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Inflammatory myofibroblastic tumors (IMTs) are relatively rare entities of a distinct histologic appearance and benign clinical course. Although these lesions have been described in virtually every anatomic location, there are few documented reports with tracheal localization. We add to the short list of pediatric IMTs of the trachea, a 13-year-old boy that was referred to our pediatric respiratory unit for evaluation of his respiratory distress. In particular, we describe the clinical and pathologic features of this patient and present a review of all reported lesions in the available literature.
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Affiliation(s)
- Ioannis Venizelos
- Department of Pathology, Hippokration General Hospital of Thessaloniki, Thessaloniki, Greece
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Tamiolakis D, Venizelos I, Nikolaidou S, Jivanakis T. Normal development of fetal hepatic haematopoiesis during the second trimester of gestation is upregulated by fibronectin expression in the stromal cells of the portal triads. Rev Esp Enferm Dig 2008; 99:576-80. [PMID: 18052660 DOI: 10.4321/s1130-01082007001000003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE in midtrimester fetuses the principal site of hematopoiesis is the liver. In hematopoietic organs, stromal cells such as fibroblasts, epithelial cells, and macrophage-like cells develop networks to maintain hematopoiesis, i.e. hematopoietic stem cell self-renewal, proliferation, and growth, by interaction with hematopoietic progenitor cells. ECM glycoproteins produced by the stromal cells are known to play a critical role in the regulation of cell growth and differentiation. Numerous soluble and membrane-bound factors directly regulating haematopoiesis have been documented, but little is known about fetal hepatic stromal cell activity and stromal extracellular matrix protein-fibronectin, on fetal hepatic haematopoiesis. The binding of late stage erythroid cells to fibronectin has been well characterized and is believed to be critical for the terminal stages of erythroid differentiation. The intention of this article is to determine the role of fibronectin in fetal hepatic hematopoietic proliferation and differentiation in different stages of development. MATERIAL AND METHOD we examined and compared the immunohistochemical expression of fibronectin in the hepatic stromal portal fields in the 1st, 2nd, and 3rd trimester of gestation respectively, in relation to the appearance of CD34 progenitor hematopoietic, stromal progenitor and vascular endothelial positive cells. RESULTS our results demonstrated a quantitative difference in the second trimester of gestation concerning the expression of fibronectin in the connective tissue stroma of the hepatic portal fields over the equivalent expression of the protein in the first (p < 0.0001, t-test) and third trimester (p < 0.0001, t-test). Similar changes in the above period were found concerning the expression of CD34 during the second trimester of gestation, over the first (p < 0.0001, t-test) and third trimesters (p < 0.0001, t-test), suggesting a direct involvement of fibronectin in the sustaining of hematopoietic activity. CONCLUSIONS our data provide evidence that an ECM glycoprotein component, fibronectin, plays a relevant role in hematopoiesis through interaction between stromal cells and hematopoietic progenitor cells.
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Affiliation(s)
- D Tamiolakis
- Department of Cytology, General Hospital of Chania, Crete, Greece.
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Lambropoulou M, Tamiolakis D, Venizelos I, Alexiadis G, Anastasopoulos G, Limberis V, Galazios G, Tsikouras P, Simopoulou M, Nikolaidou S, Petrakis G, Papadopoulos N. Induction of hepatic haematopoiesis with fibronectin expression by EMT stromal cells during the second trimester of development. Clin Exp Med 2008. [DOI: 10.1007/s10238-007-0147-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Venizelos I, Venizelos J, Tamiolakis D, Lambropoulou M, Alexiadis G, Petrakis G, Papadopoulos N. High grade primary adrenal intravascular large B-cell lymphoma manifesting as Addison disease. Rev Esp Enferm Dig 2008; 99:471-4. [PMID: 18020866 DOI: 10.4321/s1130-01082007000800010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
We report a rare case of a 68 aged male who presented with adrenal failure and was diagnosed of high grade large B-cell lymphoma primarily arising in the adrenal glands. The patient was administrated with additional chemotherapy but he passed away 7 months later due to infection in the lungs. Intravascular lymphoma should be suspected in patients with bilateral adrenal masses who present with rapidly progressive adrenal insufficiency.
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Affiliation(s)
- I Venizelos
- Department of Pathology, Ippocration General Hospital of Salonica, Thrace, Greece
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