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Doulberis M, Papaefthymiou A, Polyzos SA, Boziki M, Deretzi G, Giartza-Taxidou E, Vardaka E, Grigoriadis N, Katsinelos T, Touloumtzi M, Papanikopoulou K, Anastasiadou K, Georgopoulos S, Dardiotis E, Anastasiadis S, Katsinelos P, Kountouras J. Microbes and Alzheimer' disease: lessons from H. pylori and GUT microbiota. Eur Rev Med Pharmacol Sci 2020; 23:1845-1846. [PMID: 30915725 DOI: 10.26355/eurrev_201903_17218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- M Doulberis
- Department of General Internal Medicine, University Hospital Inselspital Bern, Bern, Switzerland. ;
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Kountouras J, Boziki M, Polyzos S, Katsinelos P, Gavalas E, Zeglinas C, Tzivras D, Romiopoulos I, Giorgakis N, Anastasiadou K, Vardaka E, Kountouras C, Kazakos E, Giartza-Taxidou E, Deretzi G, Dardiotis E, Kotronis G, Doulberis M. The Emerging Role of Helicobacter Pylori-Induced Metabolic Gastrointestinal Dysmotility and Neurodegeneration. Curr Mol Med 2018; 17:389-404. [DOI: 10.2174/1566524018666171219094837] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 11/29/2017] [Accepted: 12/15/2017] [Indexed: 12/13/2022]
Affiliation(s)
- J. Kountouras
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - M. Boziki
- B' Neurological Department, Aristotle University of Thessaloniki, AHEPA General Hospital, Thessaloniki, Greece
| | - S.A. Polyzos
- 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
| | - E. Gavalas
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - C. Zeglinas
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - D. Tzivras
- 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
| | - N. Giorgakis
- 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
| | - E. Vardaka
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - C. Kountouras
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - E. Kazakos
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - E. Giartza-Taxidou
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - G. Deretzi
- Department of Neurology, Multiple Sclerosis Unit, Papageorgiou General Hospital, Thessaloniki, Greece
| | - E. Dardiotis
- Laboratory of Neurogenetics, Department of Neurology, University of Thessaly, University Hospital of Larissa, Larissa, Greece
| | - G. Kotronis
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
| | - M. Doulberis
- Department of Medicine, Second Medical Clinic, Aristotle University of Thessaloniki, Ippokration Hospital, Thessaloniki, Greece
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Katsinelos P, Kountouras J, Chatzimavroudis G, Lazaraki G, Terzoudis S, Gatopoulou A, Mimidis K, Maris T, Paroutoglou G, Anastasiadou K, Georgakis N. Factors predicting a positive capsule endoscopy in past overt obscure gastrointestinal bleeding: a multicenter retrospective study. Hippokratia 2016; 20:127-132. [PMID: 28416909 PMCID: PMC5388513] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVES Capsule endoscopy (CE) remains the examination of choice for the investigation of obscure gastrointestinal bleeding. Although the factors predicting positive CE findings in the overall obscure gastrointestinal bleeding have been investigated, the clinical characteristics that predict a positive CE in patients with past overt obscure gastrointestinal bleeding (OOGIB) have not been systematically studied. METHODS Between September 2004 and December 2013, 262 patients underwent CE for evaluation of past OOGIB after negative upper and lower endoscopy, and other diagnostic modalities. Patients' records were retrospectively reviewed to assess the factors that could possibly predict positive CE findings. RESULTS Two hundred and twenty four patients with a median age of 70 years (range: 17-87) were enrolled in the final analysis and were divided into two groups; those who had positive (group A: 118 patients) and those who had negative CE findings (group B: 106 patients). The overall diagnostic yield of CE was 52.68 %. Multivariate analysis demonstrated that age >65 years, anticoagulant use, antiplatelet use, and non-steroidal anti-inflammatory drugs use were independent predictive factors for positive findings on CE. Of the 118 patients with positive CE, therapeutic interventions were performed in 56 patients (47.46 %). Recurrence of bleeding presented in nine patients of group B compared with 39 patients of group A (p <0.001). CONCLUSIONS Certain clinical characteristics predict a positive CE in patients with past OOGIB. Patients with OOGIB and negative CE had a considerably lower rebleeding rate, and further invasive investigational procedures may be adjourned or may not be required, though such recommendation warrants further validation. Hippokratia 2016, 20(2): 127-132.
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Affiliation(s)
- P Katsinelos
- Department of Endoscopy and Motility Unit, G.Gennimatas General Hospital, Athens, Greece
| | - J Kountouras
- 2 Department of Internal Medicine, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G Chatzimavroudis
- Department of Endoscopy and Motility Unit, G.Gennimatas General Hospital, Athens, Greece
| | - G Lazaraki
- Department of Endoscopy and Motility Unit, G.Gennimatas General Hospital, Athens, Greece
| | - S Terzoudis
- Department of Endoscopy and Motility Unit, G.Gennimatas General Hospital, Athens, Greece
| | - A Gatopoulou
- 2 Department of Internal Medicine, University Hospital of Alexandroupoli, Democritus University of Thrace, Greece
| | - K Mimidis
- 1 Department of Internal Medicine, University Hospital of Alexandroupoli, Democritus University of Thrace, Greece
| | - T Maris
- Department of Gastroenterology, G.Papanikolaou General Hospital, Thessaloniki, Greece
| | - G Paroutoglou
- Department of Gastroenterology, University Hospital of Thessaly, Larissa, Greece
| | - K Anastasiadou
- 2 Department of Internal Medicine, Ippokration Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - N Georgakis
- 2 Department of Internal Medicine, Ippokration Hospital, Aristotle University of Thessaloniki, 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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Tzanakos K, Mimilidou A, Anastasiadou K, Stratakis A, Gidarakos E. Solidification/stabilization of ash from medical waste incineration into geopolymers. Waste Manag 2014; 34:1823-1828. [PMID: 24785364 DOI: 10.1016/j.wasman.2014.03.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 03/03/2014] [Accepted: 03/26/2014] [Indexed: 06/03/2023]
Abstract
In the present work, bottom and fly ash, generated from incinerated medical waste, was used as a raw material for the production of geopolymers. The stabilization (S/S) process studied in this paper has been evaluated by means of the leaching and mechanical properties of the S/S solids obtained. Hospital waste ash, sodium hydroxide, sodium silicate solution and metakaolin were mixed. Geopolymers were cured at 50°C for 24h. After a certain aging time of 7 and 28 days, the strength of the geopolymer specimens, the leachability of heavy metals and the mineralogical phase of the produced geopolymers were studied. The effects of the additions of fly ash and calcium compounds were also investigated. The results showed that hospital waste ash can be utilized as source material for the production of geopolymers. The addition of fly ash and calcium compounds considerably improves the strength of the geopolymer specimens (2-8 MPa). Finally, the solidified matrices indicated that geopolymerization process is able to reduce the amount of the heavy metals found in the leachate of the hospital waste ash.
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Affiliation(s)
- Konstantinos Tzanakos
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania P.C. 73100, Greece.
| | - Aliki Mimilidou
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania P.C. 73100, Greece
| | - Kalliopi Anastasiadou
- Division Bridges and Structural Technology/Section Tunnel and Foundation Engineering, Tunnel Operation, Civil Security, Federal Highway Research Institute (BASt), Bruederstraße 53, P.C. 51427 Bergisch Gladbach, Germany
| | - Antonis Stratakis
- Laboratory of Applied Mineralogy, Department of Mineral Resources Engineering, Technical University of Crete, Chania P.C. 73100, Greece
| | - Evangelos Gidarakos
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania P.C. 73100, Greece
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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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Pellera FM, Giannis A, Kalderis D, Anastasiadou K, Stegmann R, Wang JY, Gidarakos E. Adsorption of Cu(II) ions from aqueous solutions on biochars prepared from agricultural by-products. J Environ Manage 2012; 96:35-42. [PMID: 22208396 DOI: 10.1016/j.jenvman.2011.10.010] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 10/07/2011] [Accepted: 10/20/2011] [Indexed: 05/26/2023]
Abstract
In this study, the adsorption of Cu(II) from aqueous solutions by agricultural by-products, such as rice husks, olive pomace and orange waste, as well as compost, was evaluated. The aim was to obtain sorbent materials (biochars) through hydrothermal treatment (300 °C) and pyrolysis (300 °C and 600 °C). The effect of adsorbent dose, pH, contact time and initial Cu(II) concentration in batch-mode experiments was investigated. The optimum Cu(II) adsorption conditions was found to occur at 5-12 g/L adsorbent dose, initial pH 5-6, and reaction time 2-4 h. Furthermore, the adsorption kinetics were best described by the pseudo-second order model for all the tested materials, while the adsorption equilibrium best fitted by the linear and Freundlich isotherms. Comparing rice husks and olive pomace, the higher adsorption capacity resulted after pyrolysis at 300 °C. With respect to the orange waste and compost, the highest adsorption capacity was observed using biochars obtained after hydrothermal treatment and pyrolysis at 300 °C.
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Affiliation(s)
- Frantseska-Maria Pellera
- Department of Environmental Engineering, Technical University of Crete, Politechnioupolis, 73100 Chania, Greece
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Anastasiadou K, Christopoulos K, Mousios E, Gidarakos E. Solidification/stabilization of fly and bottom ash from medical waste incineration facility. J Hazard Mater 2012; 207-208:165-170. [PMID: 21784578 DOI: 10.1016/j.jhazmat.2011.05.027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 03/14/2011] [Accepted: 05/09/2011] [Indexed: 05/31/2023]
Abstract
In the present work, the stabilization/solidification of fly and bottom ash generated from incinerated hospital waste was studied. The objectives of the solidification/stabilization treatment were therefore to reduce the leachability of the heavy metals present in these materials so as to permit their disposal in a sanitary landfill requiring only a lower degree of environmental protection. Another objective of the applied treatment was to increase the mechanical characteristics of the bottom ash using different amounts of Ordinary Portland Cement (OPC) as a binder. The solidified matrix showed that the cement is able to immobilize the heavy metals found in fly and bottom ash. The TCLP leachates of the untreated fly ash contain high concentrations of Zn (13.2 mg/l) and Pb (5.21 mg/l), and lesser amounts of Cr, Fe, Ni, Cu, Cd and Ba. Cement-based solidification exhibited a compressive strength of 0.55-16.12 MPa. The strength decreased as the percentage of cement loading was reduced; the compressive strength was 2.52-12.7 MPa for 60% cement mixed with 40% fly ash and 6.62-16.12 MPa for a mixture of 60% cement and 40% bottom ash. The compressive strength reduced to 0.55-1.30 MPa when 30% cement was mixed with 70% fly ash, and to 0.90-7.95 MPa when 30% cement was mixed with 70% bottom ash, respectively.
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Affiliation(s)
- Kalliopi Anastasiadou
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania, P.C. 73100, Greece
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Anastasiadou K, Axiotis D, Gidarakos E. Hydrothermal conversion of chrysotile asbestos using near supercritical conditions. J Hazard Mater 2010; 179:926-932. [PMID: 20427128 DOI: 10.1016/j.jhazmat.2010.03.094] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2009] [Revised: 03/22/2010] [Accepted: 03/22/2010] [Indexed: 05/29/2023]
Abstract
The present research investigates, develops and evaluates the transformation of chrysotile asbestos into a non-hazardous material, such as forsterite, using an economically viable and safe method. The aim of this study is to convert fibrous chrysotile asbestos into an anhydrous magnesium silicate with a non-hazardous lamellar morphology using supercritical steam. The treatment method is characterized as hydrothermal in a temperature and pressure range of 300-700 degrees C and 1.75-5.80 MPa, respectively. Small amounts of asbestos (2.5 g) were treated in each experiment. Deionised water was used as the treatment solution. The treatment duration varied from approximately 1-5 h. Additional experiments took place using solutions of distilled water and small amounts of acetic acid, with the aim of attaining optimal treatment conditions. Crystal phases of the samples were determined by X-ray diffraction (XRD). The main phases present in the treated samples were forsterite, enstatite, and chrysotile asbestos. Lizardite and periclase were also found. The morphology of the treated chrysotile asbestos fibers was identified by scanning electron microscope (SEM). The fibrous form of chrysotile asbestos was converted into non-fibrous form of forsterite. In fact, none of the fibrous-needle-like morphology, with length equal to or greater than 5 microm and diameter less than 3 microm, which was responsible for the toxicity of the original material, was visible in the solid phase. The dissolution of magnesium from chrysotile asbestos was measured using volumetric determination by titration with EDTA. Leaching of magnesium into the liquid phase was observed. Clearly, the highest concentrations of dissolved magnesium are observed after hydrothermal treatment of chrysotile asbestos using acetic acid 1% (8.4-14.6%). Lowest concentrations of dissolved magnesium are obtained after hydrothermal treatment of chrysotile asbestos without using additives. Observing the results of the hydrothermal treatment using additives, the mineralogical conversion does not depend on the presence of a small quantity of weak organic acid (<1%). The addition of acetic acid 1% during hydrothermal treatment did not involve changes in the conditions of the chrysotile asbestos' mineral conversion.
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Affiliation(s)
- Kalliopi Anastasiadou
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania, PC 73100, Greece
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Gidarakos E, Petrantonaki M, Anastasiadou K, Schramm KW. Characterization and hazard evaluation of bottom ash produced from incinerated hospital waste. J Hazard Mater 2009; 172:935-942. [PMID: 19683871 DOI: 10.1016/j.jhazmat.2009.07.080] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2009] [Revised: 07/07/2009] [Accepted: 07/21/2009] [Indexed: 05/28/2023]
Abstract
The uncontrolled disposal of bottom ash from incineration units of hazardous and infected wastes in many countries causes significant scale damage, since it contaminates the soil as well as surface and underground waters, putting both the environment and the public health at risk. In view of the above, a study of bottom ash produced at a hospital medical waste incinerator (HMWI) in Greece was conducted, in order to detect the presence of heavy metals and therefore assess its toxicity; this led to conclusions on the possible contamination of the soil as well as surface and underground waters as a result of its disposal in landfills. The study was conducted at a typical general hospital with 500-bed capacity. About 880 kg of infectious waste coming from a general hospital with all medical departments are pyrolyticly incinerated at the HMWI every day. International literature contains many references to research that characterizes bottom ash as either dangerous, not dangerous, or inert, in an effort to diagnose its proper management and disposal. For this reason, this study focuses on the characterization of bottom ash. Samples were collected from a combustion chamber, over a period of 1 year, and a series of tests were conducted, including an analysis of particle size distribution, morphology, mineralogical and chemical composition, heavy metal leaching behavior and PCDD/F.
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Affiliation(s)
- Evangelos Gidarakos
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Chania, Greece.
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Samanidou VF, Anastasiadou K, Papadoyannis IN. Development and Validation of a Rapid HPLC Method for the Determination of Methadone and its Main Metabolite EDDP in Biological Fluids, Following SPE. J LIQ CHROMATOGR R T 2007. [DOI: 10.1080/10826070500531433] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- V. F. Samanidou
- a Laboratory of Analytical Chemistry, Department of Chemistry , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - K. Anastasiadou
- a Laboratory of Analytical Chemistry, Department of Chemistry , Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - I. N. Papadoyannis
- a Laboratory of Analytical Chemistry, Department of Chemistry , Aristotle University of Thessaloniki , Thessaloniki , Greece
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Anastasiadou K, Gidarakos E. Toxicity evaluation for the broad area of the asbestos mine of northern Greece. J Hazard Mater 2007; 139:9-18. [PMID: 16889894 DOI: 10.1016/j.jhazmat.2006.06.031] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Revised: 06/01/2006] [Accepted: 06/06/2006] [Indexed: 05/11/2023]
Abstract
The existing data regarding the quality of the environment in the asbestos mine of northern Greece (MABE) region related to the presence of asbestos are insufficient to determine the current pollution problem. In the present work, a first approach to this problem has been taken through a toxicity risk assessment. The environmental quality of an open air asbestos mine was evaluated over a long period of time by measuring and monitoring the concentration of asbestos fibres in air, soil and water. Air measurements were made to determine the concentration of asbestos fibres in the atmospheric air of the mine, the depositions and the nearby villages. The asbestos fibre concentration was also specified inside the building facilities of MABE. Analyses of soil, dust and water samples were carried out showing the presence of enormous quantities of chrysotile asbestos. The concentration of asbestos fibres in the atmospheric air was compared to older measurements that were taken at the same sampling points during the operation of the mine. The results of this work, in conjunction with individual researches that have been carried out in the past and with the evaluation of international standards of scientific and experience-based findings, provide a reliable framework with which to estimate the threat of MABE to its surrounding environment, and help to determine a basic criterion for the remediation and rehabilitation of the region. In addition, mathematical models based on human and animal studies were used to estimate the probability of a person developing cancer from breathing air containing asbestos fibres in the wider vicinity of the mine in order to define appropriate procedures for evaluating asbestos-related risk.
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Affiliation(s)
- Kalliopi Anastasiadou
- Laboratory of Toxic and Hazardous Waste Management, Department of Environmental Engineering, Technical University of Crete, Politechnioupolis, Chania, P.C. 73100, Greece
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Anastasiadou K, Pilavaki M, Vafiadis E, Petridis A, Drevelengas A. [Boerhaave syndrome: a rare cause of acute thoracic pain]. Pneumologie 1998; 52:132-4. [PMID: 9564186] [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: 02/07/2023]
Abstract
In a 74-year old female patient suffering from acute thoracic pain, vomiting, and dyspnoea, the diagnosis of Boerhaave's syndrome was made. After medical treatment the patient was dismissed in a sufficiently satisfactory condition. If symptoms like vomiting, severe thoracic pain, pneumomediastinum, pneumothorax or hydropneumothorax on the left side occur, a rupture of the oesophagus should be taken into account especially in case of abuse of alcohol. The early diagnosis is decisive for the course of the disease and a lethality reduction.
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Affiliation(s)
- K Anastasiadou
- Radiologische Abteilung des Allgemeinen Krankenhauses G. Papanikolaou, Thessaloniki, Griechenland
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Pilavaki M, Anastasiadou K, Vlachojanni E, Drosos H, Petridis A, Drevelengas A. [Tracheobronchomegaly (Mounier-Kuhn syndrome): roentgen findings and tracheal stent instrumentation]. Pneumologie 1995; 49:556-8. [PMID: 8584526] [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: 01/31/2023]
Abstract
Tracheobronchomegaly is a rare disorder of the lower respiratory tract characterised by marked dilatation of the trachea and the central bronchi associated with recurrent respiratory tract infections. However, some patients with tracheobronchomegaly are not detected because the symptoms are overlooked if chest radiographs alone are used for diagnosis. We encountered two cases of tracheobronchomegaly that were not diagnosed by chest radiographic examinations but were shown clearly with CT. We believe that patients with recurrent pulmonary infection must be examined with the use of CT.
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Affiliation(s)
- M Pilavaki
- Radiologische Abteilung des Allgemeinen Krankenhauses, G. Papanikolaou Thessaloniki, Griechenland
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