Universitario runa

A Coruña, Spain

Universitario runa

A Coruña, Spain
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PubMed | IRCCS Fondazione Salvatore Maugeri, University Hospital 12 Of Octubre, University of Ferrara, University of Verona and 9 more.
Type: | Journal: European journal of heart failure | Year: 2016

The aim of this study was to evaluate the in-hospital and 1-year prognostic impact of diabetes and elevated blood glucose levels at hospital admission in patients with acute heart failure (HF).We studied a multinational cohort of 6926 hospitalized patients with acute HF enrolled in the European Society of Cardiology (ESC) and Heart Failure Association (HFA) Long-Term Registry, of whom 49.4% (n = 3422) had known or previously undiagnosed diabetes (defined as self-reported history, or medication use, or fasting glucose levels 7.0mmol/L or haemoglobin AAmong patients hospitalized for acute HF, the presence of diabetes is independently associated with an increased risk of in-hospital mortality, 1-year all-cause mortality, and 1-year re-hospitalizations for HF, underscoring the need for more effective and personalized treatments of diabetes in this particularly high-risk patient population.

Hermida-Gomez T.,Hospital Universitario runa | Fuentes-Boquete I.,CIBER ISCIII | Gimeno-Longas M.J.,Hospital Universitario runa | Muinos-Lopez E.,Universitario runa | And 3 more authors.
Journal of Rheumatology | Year: 2011

Objective. To quantify cells expressing mesenchymal stem cell (MSC) markers in synovial membranes from human osteoarthritic (OA) and healthy joints. Methods. Synovial membranes from OA and healthy joints were digested with collagenase and the isolated cells were cultured. Synovial membrane-derived cells were phenotypically characterized for differentiation experiments using flow cytometry to detect the expression of mesenchymal markers (CD29, CD44, CD73, CD90, CD105, CD117, CD166, and STRO-1) and hematopoietic markers (CD34 and CD45). Chondrogenesis was assessed by staining for proteoglycans and collagen type II, adipogenesis by using a stain for lipids, and osteogenesis by detecting calcium deposits. Coexpression of CD44, CD73, CD90, and CD105 was determined using immunofluorescence. Results. Cells expressing MSC markers were diffusely distributed in OA synovial membranes; in healthy synovial membrane these cells were localized in the subintimal zone. More numerous MSC markers in OA synovial membranes were observed in cells also expressing the CD90 antigen. FACS analysis showed that more than 90% of OA synovial membrane-derived cells were positive for CD44, CD73, and CD90, and negative for CD34 and CD45. OA synovial membrane-derived cells were also positive for CD29 (85.23%), CD117 (72.35%), CD105 (45.5%), and STRO-1 (49.46%). Micropellet analyses showed that the culture of cells with transforming growth factor-β3 stimulated proteoglycan and collagen type II synthesis. Conclusion. Synovial membranes from patients with OA contain more cells positive for CD44, CD90, and CD105 antigens than those from joints with undamaged cartilage. The Journal of Rheumatology Copyright © 2011. All rights reserved.

Del Rey M.J.,Hospital 12 Of Octubre | Izquierdo E.,Hospital 12 Of Octubre | Usategui A.,Hospital 12 Of Octubre | Gonzalo E.,Hospital 12 Of Octubre | And 3 more authors.
Arthritis Care and Research | Year: 2010

Objective: Hypoxia is a prominent feature in rheumatoid arthritis (RA) synovium. However, its contribution to the pathogenesis of RA remains unclear. We undertook this study to systematically characterize the changes in gene expression induced by hypoxia in synovial fibroblasts. Methods We used microarray expression profiling in paired normoxic and hypoxic cultures of healthy synovial fibroblasts (HSFs) and RA synovial fibroblasts (RASFs). We used Student's paired t-test with Benjamini and Hochberg multiple testing correction to determine statistical significance. Validation of microarray data was performed by quantitative real-time reverse transcription-polymerase chain reaction analysis of selected genes. Biologic pathways differentially modulated by hypoxia in RASFs or HSFs were identified using unsupervised Ingenuity Pathways Analysis. Results Hypoxia induced significant changes in the expression of a large group of genes in both HSFs and RASFs. In RASFs, we observed a lower number of hypoxia-regulated genes and partial differences in their functional categories. The number of differentially expressed genes in RASFs compared with HSFs was significantly increased by hypoxia. Multiple gene sets involved in energy metabolism, intracellular signal transduction, angiogenesis, and immune and inflammatory pathways were significantly modified, the last in both proinflammatory and antiinflammatory directions. Conclusion These data demonstrate that hypoxia induces significant changes in gene expression in HSFs and RASFs and identify differences between RASF and HSF profiles. The hypoxia-induced gene expression program in synovial fibroblasts identifies new factors and pathways relevant to understanding their contribution to the pathogenesis of chronic arthritis. Copyright © 2010 by the American College of Rheumatology.

Grande E.,Ramon y Cajal University Hospital | Aparicio L.A.,Universitario runa
Stem Cells in Cancer: Should We Believe or Not? | Year: 2014

This volume explores the latest developments in a novel area of molecular biology and a hot topic in the field of oncology: cancer stem cells. These chapters from expert contributing authors present concepts such as the universal stem cell, new molecular pathways, new targeted agents, the different roles that cancer stem cells seem to have according to the organ they are placed in, and the future role that targeting cancer stem cells may have in the management of patients in the clinic. Exploring the latest research including new data from randomized trials, this book examines important proposals over the origin of cancer stem cells such as the possibility that cancer stem cells may arise from mutated stem cells or a fully differentiated cell that may undergo several mutations that drive it back to a stem-like state. The authors consider the role that stem cells seem to have in the onset, development and resistance to classical antitumoral treatments of cancer and discuss possible potential future treatment modalities for the management of advanced cancer patients. The question, "Are stem cells involved in cancer?" may not have a simple answer, but ongoing investigations, in-depth consideration and a broad spectrum of information can be found in this book, allowing the reader to arrive at his or her own answer. This book will appeal to researchers in the field of oncology and cancer research and biomedical scientists with an interest in stem cells. © 2014 Springer Science+Business Media Dordrecht. All rights reserved.

Rego-Perez I.,Universitario runa | Fernandez-Moreno M.,Universitario runa | Deberg M.,University of Liège | Pertega S.,Universitario runa | And 4 more authors.
Annals of the Rheumatic Diseases | Year: 2011

Objective: To analyse the influence of mitochondrial DNA haplogroups, as well as the radiographic grade, on serum levels of proteolytic enzymes in patients with osteoarthritis (OA). Methods: Serum levels of metalloproteinase-1 (MMP-1), MMP-3, MMP-13, myeloperoxidase and cathepsin K were analysed in 73 patients with OA and 77 healthy controls carrying the haplogroups J, U and H, by ELISA. Knee and hip radiographs were classified according to Kellgren and Lawrence (K/L) scoring from grade 0 to grade IV. Non-parametric and multiple regression analyses were performed to test the effects of clinical variables, including gender, age, smoking status, diagnosis, haplogroups and radiological K/L grade on serum levels of these enzymes. Results: A significant influence of the haplogroups on the serum levels of MMP-3 and MMP-13 was detected (p=0.027 and p=0.035, respectively). Patients with OA with haplogroup H showed higher serum levels of MMP-3 than healthy controls. Serum levels of MMP-13 were significantly higher in patients with OA (p<0.001), and carriers of the haplogroup J showed lower levels than H carriers. Besides, levels of MMP-13 were proportionally higher in radiological groups B (K/L grade II and III) and C (K/L grade IV) than in group A (K/L grade 0 and I) (p=0.005). Conclusions: This study shows that haplogroups have a significant influence on serum levels of MMP-3 and MMP-13. The influence of the haplogroups on serum levels of MMP-3 is clearly dependent on the diagnosis, whereas the influence of the haplogroups on serum levels of MMP-13 is independent of diagnosis.

Monserrat L.,Universitario runa | Lopez B.,Center for Applied Medical Research | Gonzalez A.,Center for Applied Medical Research | Hermida M.,Institute Investigacion Biomedica | And 5 more authors.
European Heart Journal | Year: 2011

AimsCardiotrophin-1 (CT-1) is a cytokine that induces hypertrophy in cardiomyocytes and is associated with left ventricular hypertrophy (LVH) in hypertensive patients. The objective of this study was to evaluate whether plasma CT-1 is associated with hypertrophic cardiomyopathy (HCM).Methods and resultsThe study was performed in 124 patients with HCM. All patients underwent a full clinical evaluation and an echocardiogram. Left ventricular hypertrophy was evaluated by the measurement of the maximal LV wall thickness and the Spiritos LVH score. Plasma CT-1 was measured by an enzyme-linked immunosorbent assay. Compared with controls, patients with HCM exhibited higher (P < 0.001) plasma CT-1 levels. Significant correlations were found between CT-1 and maximal LV wall thickness (r 0.284, P 0.001) and the Spiritos LVH score (r 0.287, P= 0.006) in HCM patients. In addition, the levels of CT-1 were higher (P< 0.02) in patients with severe LVH (maximal LV wall thickness <30 mm) than in patients with mild or moderate LVH (maximal LV wall thickness <30 mm).ConclusionsThese findings show that plasma CT-1 is associated with the severity of LVH in patients with HCM. Further studies are required to ascertain whether CT-1 is a diagnostic biomarker of this cardiomyopathy. © 2011 The Author.

Introduction: The assessment of quality of life in patients with head and neck cancer is dependent on many variables. Objective: The aim of this study was to evaluate the differences in quality of life among patients treated with conservative or radical surgery for laryngeal, oropharyngeal or hypopharyngeal cancer, evaluated before and at 3 and 6 months after definitive therapy. Material and method: Prospective study between November 2008 and June 2009 on 53 patients diagnosed and treated for head and neck carcinoma with surgery: partial (n = 32) and radical (n = 21). Quality of life was evaluated using the European Organization of Research and Treatment of Cancer (EORTC) general questionnaire EORTC QLQ-C30 and its specific head and neck EORTC QLQ-H&N35 before treatment, and at 3 and 6 months afterwards. Results: No significant differences were found in overall health. Patients experienced the greatest changes in functional scale. There were no changes in swallowing problems or feeling of disease, while evident phonation problems were present in both groups. Discussion and conclusions: The routine application of quality of life questionnaires in cancer patients improves information regarding how and to what extent patients feel that treatment and its sequelae modify it, making it possible to adapt rehabilitation and support programs to their real needs. This data helps in choosing between different options depending on the results, delivering improved care to patients. © 2010 Elsevier España, S.L.

Del Pino I.G.,Universitario runa | Constanso I.,Universitario runa | Mourin L.V.,Universitario runa | Safont C.B.,Universitario runa | Vazquez P.R.,Universitario runa
Clinical Chemistry and Laboratory Medicine | Year: 2013

Background: In order to minimize the influence of glycolysis on diabetes mellitus (DM) diagnostic tests, we have compared the behavior of citric/citrate, fluoride additives and gel-serum with plasma-heparin under careful preanalytical conditions. Subsequently, we compared the effectiveness of both fluoride and citric additives at different pre-centrifugation times. Finally, the influence of citric/citrate collection tube on diagnostic tests results was evaluated. Methods: The first study of 80 voluntary patients assessed the glucose bias of citric/citrate, fluoride additive tubes and gel-serum tubes versus plasma-heparin tubes at several medical decision cut-offs (MDC). The second study performed with 72 volunteers evaluated additives, simulating transport times to the laboratory and centrifugation delay periods. Final evaluation compares the proportion of positive tests in total tests carried out in two different periods. Results: When citric/citrate (n = 79) and fluoride tubes (n = 60) were compared with plasma-heparin under controlled preanalytical conditions, both met the bias specification for plasma glucose (± 1.8%) at seven MDC. On the contrary, serum samples (n = 15) did not meet it at five MDC. In the second study, differences in glucose values at distinct pre-centrifugation times were not statistically significant for citric/citrate tubes, but significant for fluoride tubes and also for comparison of fluoride and citric/ citrate tubes. Hemolysis in fluoride tubes was higher. Citric/citrate tube implementation in our laboratory caused an increase in positive diagnostic tests that were only statistically significant for gestational diabetes mellitus (GDM) screening. Conclusions: Citric/citrate additive tube is equivalent to plasma-heparin avoiding glycolysis completely and immediately under careful preanalytical conditions even with a 3-h delay in plasma separation. According to used MDC we have not statistically significantly increased the diagnoses of DM cases.

Blanco-Aparicio M.,Complejo Hospitalario Universitario runa | Vazquez I.,University of Santiago de Compostela | Pita-Fernandez S.,Universitario runa | Pertega-Diaz S.,Universitario runa | Verea-Hernando H.,Complejo Hospitalario Universitario runa
Health and Quality of Life Outcomes | Year: 2013

Background: There is some evidence that quality of life measured by long disease-specific questionnaires may predict exacerbations in asthma and COPD, however brief quality of life tools, such as the Airways Questionnaire 20 (AQ20) or the Clinical COPD Questionnaire (CCQ), have not yet been evaluated as predictors of hospital exacerbations.Objectives: To determine the ability of brief specific health-related quality of life (HRQoL) questionnaires (AQ20 and CCQ) to predict emergency department visits (ED) and hospitalizations in patients with asthma and COPD, and to compare them to longer disease-specific questionnaires, such as the St Georgés Respiratory Questionnaire (SGRQ), the Chronic Respiratory Disease Questionnaire (CRQ) and the Asthma Quality of Life Questionnaire (AQLQ).Methods: We conducted a two-year prospective cohort study of 208 adult patients (108 asthma, 100 COPD). Baseline sociodemographic, clinical, functional and psychological variables were assessed. All patients completed the AQ20 and the SGRQ. COPD patients also completed the CCQ and the CRQ, while asthmatic patients completed the AQLQ. We registered all exacerbations that required ED or hospitalizations in the follow-up period. Differences between groups (zero ED visits or hospitalizations versus ≥ 1 ED visits or hospitalizations) were tested with Pearsońs X2 or Fisheŕs exact test for categorical variables, ANOVA for normally distributed continuous variables, and Mann-Whitney U test for non-normally distributed variables. Logistic regression analyses were performed to estimate the predictive ability of each HRQoL questionnaire.Results: In the first year of follow-up, the AQ20 scores predicted both ED visits (OR: 1.19; p = .004; AUC 0.723) and hospitalizations (OR: 1.21; p = .04; AUC 0.759) for asthma patients, and the CCQ emerged as independent predictor of ED visits in COPD patients (OR: 1.06; p = .036; AUC 0.651), after adjusting for sociodemographic, clinical, and psychological variables. Among the longer disease-specific questionnaires, only the AQLQ emerged as predictor of ED visits in asthma patients (OR: 0.9; p = .002; AUC 0.727). In the second year of follow-up, none of HRQoL questionnaires predicted exacerbations.Conclusions: AQ20 predicts exacerbations in asthma and CCQ predicts ED visits in COPD in the first year of follow-up. Their predictive ability is similar to or even higher than that of longer disease-specific questionnaires. © 2013 Blanco-Aparicio et al.; licensee BioMed Central Ltd.

Vaamonde-Garcia C.,Universitario runa | Riveiro-Naveira R.R.,Universitario runa | Valcarcel-Ares M.N.,Universitario runa | Hermida-Carballo L.,Universitario runa | And 2 more authors.
Arthritis and Rheumatism | Year: 2012

Objective Alterations in mitochondria play a key role in the pathogenesis of osteoarthritis (OA). The role of inflammation in the progression of OA has also acquired important new dimensions. This study was undertaken to evaluate the potential role of mitochondrial dysfunction in increasing the inflammatory response of normal human chondrocytes to cytokines. Methods Mitochondrial dysfunction was induced by commonly used inhibitors. Interleukin-1β (IL-1β) and tumor necrosis factor α (TNFα) were used as inflammatory mediators. IL-8 and cyclooxygenase 2 (COX-2) protein and messenger RNA (mRNA) expression and prostaglandin E2 (PGE2) levels were assessed. The chemotactic activity of neutrophils was assayed. Additionally, inhibitors of reactive oxygen species (ROS) and NF-KB were used to identify possible inflammatory response pathways induced by mitochondrial dysfunction, and the effects of the natural antioxidant resveratrol were tested. Results Pretreatment with antimycin A or oligomycin (inhibitors of mitochondrial respiratory chain complexes III and V, respectively) triggered a strong potentiation of IL-1β-induced IL-8 mRNA and protein expression (mean ± SEM at 18 hours 5,932 ± 1,995 pg/50,000 cells for IL-1β alone versus 16,241 ± 5,843 pg/50,000 cells for antimycin A plus IL-1β and 20,087 ± 5,407 pg/50,000 cells for oligomycin plus IL-1β; P < 0.05). Similar results were observed with TNFα or when expression of the inflammatory mediator COX-2 or PGE2 production was assessed. Mitochondrial dysfunction increased the chemotactic activity induced by cytokines, and ROS and NF-KB inhibitors decreased the production of IL-8. Resveratrol significantly reduced the inflammatory response. Conclusion Our findings indicate that mitochondrial dysfunction could amplify the responsiveness to cytokine-induced chondrocyte inflammation through ROS production and NF-KB activation. This pathway might lead to the impairment of cartilage and joint function in OA. Copyright © 2012 by the American College of Rheumatology.

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