Institution
University of Ioannina
Education•Ioannina, Greece•
About: University of Ioannina is a education organization based out in Ioannina, Greece. It is known for research contribution in the topics: Population & Large Hadron Collider. The organization has 7654 authors who have published 20594 publications receiving 671560 citations. The organization is also known as: Panepistimio Ioanninon.
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Papers
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TL;DR: This meta-analysis showed that (18)F-FDG PET has good, but not excellent, concordance with the results of BMB for the detection of bone marrow infiltration in the staging of patients with lymphoma.
Abstract: The ability of PET with 18F-FDG to evaluate bone marrow infiltration in patients with lymphoma has been a matter of extensive investigation with controversial results. Therefore, we aimed to evaluate systematically, with a meta-analysis, the diagnostic performance of 18F-FDG PET in this setting. Methods: Relevant studies were identified with MEDLINE and EMBASE searches (last update, August 2004). Data on the diagnostic performance of 18F-FDG PET were combined quantitatively across eligible studies. We estimated weighted summary sensitivities and specificities, summary receiver-operating-characteristic (SROC) curves, and weighted summary likelihood ratios. We also conducted separate analyses according to various subgroups. Bone marrow biopsy (BMB) was used as the reference standard. Results: Thirteen eligible nonoverlapping studies, which enrolled a total of 587 patients, were included in the meta-analysis. The independent random-effects weighted estimates of sensitivity and specificity against BMB were 51% (95% confidence interval [CI], 38%–64%) and 91% (95% CI, 85%–95%), respectively. Results were consistent in the SROC curve: a sensitivity of 51% corresponds to a specificity of 92%, whereas a specificity of 91% corresponds to a sensitivity of 55%. The weighted positive likelihood ratio (LR+) was 5.75 (95% CI, 348–9.48) and the negative likelihood ratio (LR−) was 0.67 (95% CI, 0.55–0.82). Six of 12 patients with positive 18F-FDG PET and negative initial biopsy were found to have bone marrow involvement when biopsy was performed at the sites with positive imaging signals. Subgroup analyses showed better sensitivity in patients with Hodgkin’s disease and in aggressive histologic types of non-Hodgkin’s lymphoma than in patients with less aggressive histologic types and in studies using unilateral BMB compared with those using bilateral biopsy. Conclusion: This meta-analysis showed that 18F-FDG PET has good, but not excellent, concordance with the results of BMB for the detection of bone marrow infiltration in the staging of patients with lymphoma. 18F-FDG PET may complement the results of BMB and its performance may vary according to the type of lymphoma.
244 citations
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TL;DR: The current knowledge on DNA damage induced by endogenously produced reactive aldehydes in relation to the pathophysiology of human diseases is discussed.
Abstract: DNA damage plays a major role in various pathophysiological conditions including carcinogenesis, aging, inflammation, diabetes and neurodegenerative diseases. Oxidative stress and cell processes such as lipid peroxidation and glycation induce the formation of highly reactive endogenous aldehydes that react directly with DNA, form aldehyde-derived DNA adducts and lead to DNA damage. In occasion of persistent conditions that influence the formation and accumulation of aldehyde-derived DNA adducts the resulting unrepaired DNA damage causes deregulation of cell homeostasis and thus significantly contributes to disease phenotype. Some of the most highly reactive aldehydes produced endogenously are 4-hydroxy-2-nonenal, malondialdehyde, acrolein, crotonaldehyde and methylglyoxal. The mutagenic and carcinogenic effects associated with the elevated levels of these reactive aldehydes, especially, under conditions of stress, are attributed to their capability of causing directly modification of DNA bases or yielding promutagenic exocyclic adducts. In this review, we discuss the current knowledge on DNA damage induced by endogenously produced reactive aldehydes in relation to the pathophysiology of human diseases.
244 citations
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TL;DR: A short categorization and description of the materials commonly used for the construction of electrodes, e.g., platinum, glassy carbon, different types of graphite, screen-printed electrodes, rigid carbon-polymer biocomposites, zeolites, clays, and polymeric membranes is given in this paper.
Abstract: This review introduces the principles of amperometric detection e.g. oxygen electrodes, hydrogen peroxide electrodes, NADH detection, mediators-aid detection, conductive organic salts and wiring electrodes. A short categorization and description of the materials commonly used for the construction of electrodes, e.g., platinum, glassy carbon, different types of graphite, screen-printed electrodes, rigid carbon-polymer biocomposites, zeolites, clays, and polymeric membranes is given. Approaches to construction of biosensors with respect to various strategies of enzyme immobilization, e.g., physical binding, covalent binding, gel entrapment, electropolymerization, sol-gel techniques and self-assembled architectures are also presented. The requirements and problems for sensing in food industry, examples of enzyme electrodes, published in the literature during the last half-decade, commercial biosensors released into the market along with the current and modern instrumentation, are also presented.
244 citations
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TL;DR: These findings suggest that two strategies should be considered for treatment of any type of coronary ISR: PCI with everolimus-eluting stents because of the best angiographic and clinical outcomes, and DCB because of its ability to provide favourable results without adding a new stent layer.
244 citations
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TL;DR: High catastrophizing levels were found to be associated with increased pain severity, increased incidence of development of chronic pain, and poorer quality of life after surgery.
Abstract: Background Postsurgical pain is a major cause of delayed recovery and discharge after surgery. A significant proportion of patients develop chronic postsurgical pain, which affects their quality of life. Cognitive and psychological factors are reported to play a significant role in the severity of reported postsurgical pain. High levels of catastrophizing are associated with a heightened pain experience and appear to contribute to the development of chronic pain. This article describes the concept of pain catastrophizing, its association with postsurgical pain, and its potential role in the management of postsurgical pain and postsurgical quality of life. Methods Data for this review were identified from MEDLINE, EMBASE, and PsycINFO. Reference lists of selected articles were cross-searched for additional literature. Results High catastrophizing levels were found to be associated with increased pain severity, increased incidence of development of chronic pain, and poorer quality of life after surgery. There was no consensus on the relation between catastrophizing and analgesia consumption. Conclusions Identifying and reducing catastrophizing levels can help to optimize pain management in surgical patients.
244 citations
Authors
Showing all 7724 results
Name | H-index | Papers | Citations |
---|---|---|---|
John P. A. Ioannidis | 185 | 1311 | 193612 |
Kay-Tee Khaw | 174 | 1389 | 138782 |
Elio Riboli | 158 | 1136 | 110499 |
Mercouri G. Kanatzidis | 152 | 1854 | 113022 |
Dimitrios Trichopoulos | 135 | 818 | 84992 |
Gyorgy Vesztergombi | 133 | 1444 | 94821 |
Niki Saoulidou | 132 | 1065 | 81154 |
Apostolos Panagiotou | 132 | 1370 | 88647 |
Ioannis Evangelou | 131 | 1225 | 82178 |
Ioannis Papadopoulos | 129 | 1201 | 85576 |
Nikolaos Manthos | 129 | 1256 | 81865 |
Panagiotis Kokkas | 128 | 1234 | 81051 |
Costas Foudas | 128 | 1112 | 83048 |
Zoltan Szillasi | 128 | 1214 | 84392 |
Matthias Schröder | 126 | 1421 | 82990 |