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Rosato V, Gómez-Rubio P, Molina-Montes E, Márquez M, Löhr M, O'Rorke M, Michalski CW, Molero X, Farré A, Perea J, Kleeff J, Crnogorac-Jurcevic T, Greenhalf W, Ilzarbe L, Tardón A, Gress T, Barberá VM, Domínguez-Muñoz E, Muñoz-Bellvís L, Balsells J, Costello E, Iglesias M, Kong B, Mora J, O'Driscoll D, Poves I, Scarpa A, Ye W, Hidalgo M, Sharp L, Carrato A, Real FX, La Vecchia C, Malats N. Gallbladder disease and pancreatic cancer risk: a multicentric case-control European study. Eur J Cancer Prev 2021; 30:423-430. [PMID: 34545020 DOI: 10.1097/cej.0000000000000588] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND AND AIMS The overall evidence on the association between gallbladder conditions (GBC: gallstones and cholecystectomy) and pancreatic cancer (PC) is inconsistent. To our knowledge, no previous investigations considered the role of tumour characteristics on this association. Thus, we aimed to assess the association between self-reported GBC and PC risk, by focussing on timing to PC diagnosis and tumour features (stage, location, and resection). METHODS Data derived from a European case-control study conducted between 2009 and 2014 including 1431 PC cases and 1090 controls. We used unconditional logistic regression models to estimate odds ratios (ORs) and corresponding 95% confidence intervals (CIs) adjusted for recognized confounders. RESULTS Overall, 298 (20.8%) cases and 127 (11.6%) controls reported to have had GBC, corresponding to an OR of 1.70 (95% CI 1.33-2.16). The ORs were 4.84 (95% CI 2.96-7.89) for GBC diagnosed <3 years before PC and 1.06 (95% CI 0.79-1.41) for ≥3 years. The risk was slightly higher for stage I/II (OR = 1.71, 95% CI 1.15-2.55) vs. stage III/IV tumours (OR = 1.23, 95% CI 0.87-1.76); for tumours sited in the head of the pancreas (OR = 1.59, 95% CI 1.13-2.24) vs. tumours located at the body/tail (OR = 1.02, 95% CI 0.62-1.68); and for tumours surgically resected (OR = 1.69, 95% CI 1.14-2.51) vs. non-resected tumours (OR = 1.25, 95% CI 0.88-1.78). The corresponding ORs for GBC diagnosed ≥3 years prior PC were close to unity. CONCLUSION Our study supports the association between GBC and PC. Given the time-risk pattern observed, however, this relationship may be non-causal and, partly or largely, due to diagnostic attention and/or reverse causation.
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Affiliation(s)
- V Rosato
- Unit of Medical Statistics and Biometry, National Cancer Institute, IRCCS Foundation, Milan, Italy
| | - P Gómez-Rubio
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- CIBERONC, Spain
| | - E Molina-Montes
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- CIBERONC, Spain
| | - M Márquez
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- CIBERONC, Spain
| | - M Löhr
- Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - M O'Rorke
- Centre for Public Health, Belfast, Queen's University Belfast, Belfast, UK
| | - C W Michalski
- Department of Surgery, Technical University of Munich, Munich
- Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - X Molero
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Barcelona, Universitat Autònoma de Barcelona, Barcelona
- CIBEREHD
| | - A Farré
- Department of Gastroenterology, Hospital de la Santa Creu i Sant Pau, Barcelona
| | - J Perea
- Department of Surgery, University Hospital 12 de Octubre
- Hospital Universitario Fundación Jiménez Díaz, Madrid, Spain
| | - J Kleeff
- Department of Surgery, Technical University of Munich, Munich
- Department of Visceral, Vascular and Endocrine Surgery, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany
| | - T Crnogorac-Jurcevic
- Barts Cancer Institute, Centre for Molecular Oncology, Queen Mary University of London, John Vane Science Centre, London
| | - W Greenhalf
- Department of Molecular and Clinical Cancer Medicine, The Royal Liverpool University Hospital, Liverpool, UK
| | - L Ilzarbe
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- Hospital del Mar-Parc de Salut Mar, Barcelona
| | - A Tardón
- Department of Medicine, Instituto Universitario de Oncología del Principado de Asturias, Oviedo
- CIBERESP, Spain
| | - T Gress
- Department of Gastroenterology, University Hospital of Giessen and Marburg, Marburg, Germany
| | - V M Barberá
- Molecular Genetics Laboratory, General University Hospital of Elche
| | - E Domínguez-Muñoz
- Department of Gastroenterology, University Clinical Hospital of Santiago de Compostela
| | - L Muñoz-Bellvís
- General and Digestive Surgery Department, Salamanca University Hospital, Elche, Santiago de Compostela, and Salamanca, Spain
| | - J Balsells
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Barcelona, Universitat Autònoma de Barcelona, Barcelona
- CIBEREHD
| | - E Costello
- Department of Molecular and Clinical Cancer Medicine, The Royal Liverpool University Hospital, Liverpool, UK
| | - M Iglesias
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- Hospital del Mar-Parc de Salut Mar, Barcelona
| | - Bo Kong
- Department of Surgery, Technical University of Munich, Munich
| | - J Mora
- Department of Gastroenterology, Hospital de la Santa Creu i Sant Pau, Barcelona
| | - D O'Driscoll
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
| | - I Poves
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- Hospital del Mar-Parc de Salut Mar, Barcelona
| | - A Scarpa
- ARC-Net centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital trust of Verona, Verona, Italy
| | - W Ye
- Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - M Hidalgo
- Madrid-Norte-Sanchinarro Hospital, Madrid, Spain
| | - L Sharp
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
- Newcastle University, Institute of Health & Society, Newcastle, UK
| | - A Carrato
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- Department of Oncology, Ramón y Cajal University Hospital, IRYCIS, Alcala University
| | - F X Real
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- Epithelial Carcinogenesis Group
- Spanish National Cancer Research Centre (CNIO), Madrid
- Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - C La Vecchia
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - N Malats
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid
- CIBERONC, Spain
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Peinado Ferreira P, Llacer Perez C, Grau G, Oliva Fernandez L, Cañada-Higueras E, Herrera-Imbroda B, Hernández D, Sáez M, Villatoro R, Montesa Pino A, López F, Márquez M, Pineda A, Olmos D, Castro E. CN22 Importance of research nursing role determining the germline study in metastatic prostate cancer patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.647] [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: 10/20/2022] Open
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Molina-Montes E, Gomez-Rubio P, Márquez M, Rava M, Löhr M, Michalski CW, Molero X, Farré A, Perea J, Greenhalf W, Ilzarbe L, O'Rorke M, Tardón A, Gress T, Barberà VM, Crnogorac-Jurcevic T, Domínguez-Muñoz E, Muñoz-Bellvís L, Balsells J, Costello E, Huang J, Iglesias M, Kleeff J, Kong B, Mora J, Murray L, O'Driscoll D, Poves I, Scarpa A, Ye W, Hidalgo M, Sharp L, Carrato A, Real FX, Malats N. Risk of pancreatic cancer associated with family history of cancer and other medical conditions by accounting for smoking among relatives. Int J Epidemiol 2018; 47:473-483. [PMID: 29329392 DOI: 10.1093/ije/dyx269] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/02/2018] [Indexed: 12/16/2022] Open
Abstract
Background Family history (FH) of pancreatic cancer (PC) has been associated with an increased risk of PC, but little is known regarding the role of inherited/environmental factors or that of FH of other comorbidities in PC risk. We aimed to address these issues using multiple methodological approaches. Methods Case-control study including 1431 PC cases and 1090 controls and a reconstructed-cohort study (N = 16 747) made up of their first-degree relatives (FDR). Logistic regression was used to evaluate PC risk associated with FH of cancer, diabetes, allergies, asthma, cystic fibrosis and chronic pancreatitis by relative type and number of affected relatives, by smoking status and other potential effect modifiers, and by tumour stage and location. Familial aggregation of cancer was assessed within the cohort using Cox proportional hazard regression. Results FH of PC was associated with an increased PC risk [odds ratio (OR) = 2.68; 95% confidence interval (CI): 2.27-4.06] when compared with cancer-free FH, the risk being greater when ≥ 2 FDRs suffered PC (OR = 3.88; 95% CI: 2.96-9.73) and among current smokers (OR = 3.16; 95% CI: 2.56-5.78, interaction FHPC*smoking P-value = 0.04). PC cumulative risk by age 75 was 2.2% among FDRs of cases and 0.7% in those of controls [hazard ratio (HR) = 2.42; 95% CI: 2.16-2.71]. PC risk was significantly associated with FH of cancer (OR = 1.30; 95% CI: 1.13-1.54) and diabetes (OR = 1.24; 95% CI: 1.01-1.52), but not with FH of other diseases. Conclusions The concordant findings using both approaches strengthen the notion that FH of cancer, PC or diabetes confers a higher PC risk. Smoking notably increases PC risk associated with FH of PC. Further evaluation of these associations should be undertaken to guide PC prevention strategies.
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Affiliation(s)
- E Molina-Montes
- Spanish National Cancer Research Center (CNIO), Genetic and Molecular Epidemiology Group, Madrid, and CIBERONC, Spain
| | - P Gomez-Rubio
- Spanish National Cancer Research Center (CNIO), Genetic and Molecular Epidemiology Group, Madrid, and CIBERONC, Spain
| | - M Márquez
- Spanish National Cancer Research Center (CNIO), Genetic and Molecular Epidemiology Group, Madrid, and CIBERONC, Spain
| | - M Rava
- Spanish National Cancer Research Center (CNIO), Genetic and Molecular Epidemiology Group, Madrid, and CIBERONC, Spain
| | - M Löhr
- Karolinska Institutet and University Hospital, Gastrocentrum, Stockholm, Sweden
| | - C W Michalski
- Technical University of Munich, Department of Surgery, Munich, Germany
- University of Heidelberg, Department of Surgery, Heidelberg, Germany
| | - X Molero
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, and CIBEREHD, Spain
| | - A Farré
- Hospital de la Santa Creu i Sant Pau, Department of Gastroenterology, Barcelona, Spain
| | - J Perea
- University Hospital 12 de Octubre, Department of Surgery, Madrid, Spain
| | - W Greenhalf
- Royal Liverpool University Hospital, Department of Molecular and Clinical Cancer Medicine, Liverpool, UK
| | - L Ilzarbe
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - M O'Rorke
- Queen's University Belfast, Centre for Public Health, Belfast, UK
| | - A Tardón
- Instituto Universitario de Oncología del Principado de Asturias, Department of Medicine, Oviedo, and CIBERESP, Spain
| | - T Gress
- University Hospital of Giessen and Marburg, Department of Gastroenterology, Marburg, Germany
| | - V M Barberà
- General University Hospital of Elche, Molecular Genetics Laboratory, Elche, Spain
| | - T Crnogorac-Jurcevic
- Barts Cancer Institute, Centre for Molecular Oncology, Queen Mary University of London, London, UK
| | - E Domínguez-Muñoz
- University Clinical Hospital of Santiago de Compostela, Department of Gastroenterology, Santiago de Compostela, Spain
| | - L Muñoz-Bellvís
- Salamanca University Hospital, General and Digestive Surgery Department, Salamanca, Spain
| | - J Balsells
- Hospital Universitari Vall d'Hebron, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, and CIBEREHD, Spain
| | - E Costello
- Royal Liverpool University Hospital, Department of Molecular and Clinical Cancer Medicine, Liverpool, UK
| | - J Huang
- Karolinska Institutet and University Hospital, Gastrocentrum, Stockholm, Sweden
| | - M Iglesias
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - J Kleeff
- Technical University of Munich, Department of Surgery, Munich, Germany
- Martin-Luther-University Halle-Wittenberg, Department of Visceral, Vascular and Endocrine Surgery, Halle (Saale), Germany
| | - Bo Kong
- Technical University of Munich, Department of Surgery, Munich, Germany
| | - J Mora
- Hospital de la Santa Creu i Sant Pau, Department of Gastroenterology, Barcelona, Spain
| | - L Murray
- Queen's University Belfast, Centre for Public Health, Belfast, UK
| | - D O'Driscoll
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
| | - I Poves
- Hospital del Mar-Parc de Salut Mar, Barcelona, Spain
| | - A Scarpa
- ARC-Net Centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital Trust of Verona, Verona, Italy
| | - W Ye
- Karolinska Institutet and University Hospital, Gastrocentrum, Stockholm, Sweden
| | - M Hidalgo
- Madrid-Norte-Sanchinarro Hospital, Madrid, Spain
| | - L Sharp
- National Cancer Registry Ireland and HRB Clinical Research Facility, University College Cork, Cork, Ireland
- Newcastle University, Institute of Health and Society, Newcastle upon Tyne, UK
| | - A Carrato
- Ramón y Cajal University Hospital, Department of Oncology, IRYCIS, Alcala University, Madrid, and CIBERONC, Spain
| | - F X Real
- Spanish National Cancer Research Centre (CNIO), Epithelial Carcinogenesis Group, Madrid, Universitat Pompeu Fabra, Departament de Ciències Experimentals i de la Salut, Barcelona, and CIBERONC, Spain
| | - N Malats
- Spanish National Cancer Research Center (CNIO), Genetic and Molecular Epidemiology Group, Madrid, and CIBERONC, Spain
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Gomez-Rubio P, Rosato V, Márquez M, Bosetti C, Molina-Montes E, Rava M, Piñero J, Michalski CW, Farré A, Molero X, Löhr M, Ilzarbe L, Perea J, Greenhalf W, O'Rorke M, Tardón A, Gress T, Barberá VM, Crnogorac-Jurcevic T, Muñoz-Bellvís L, Domínguez-Muñoz E, Gutiérrez-Sacristán A, Balsells J, Costello E, Guillén-Ponce C, Huang J, Iglesias M, Kleeff J, Kong B, Mora J, Murray L, O'Driscoll D, Peláez P, Poves I, Lawlor RT, Carrato A, Hidalgo M, Scarpa A, Sharp L, Furlong LI, Real FX, La Vecchia C, Malats N. A systems approach identifies time-dependent associations of multimorbidities with pancreatic cancer risk. Ann Oncol 2017; 28:1618-1624. [PMID: 28383714 DOI: 10.1093/annonc/mdx167] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2017] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is usually diagnosed in late adulthood; therefore, many patients suffer or have suffered from other diseases. Identifying disease patterns associated with PDAC risk may enable a better characterization of high-risk patients. METHODS Multimorbidity patterns (MPs) were assessed from 17 self-reported conditions using hierarchical clustering, principal component, and factor analyses in 1705 PDAC cases and 1084 controls from a European population. Their association with PDAC was evaluated using adjusted logistic regression models. Time since diagnosis of morbidities to PDAC diagnosis/recruitment was stratified into recent (<3 years) and long term (≥3 years). The MPs and PDAC genetic networks were explored with DisGeNET bioinformatics-tool which focuses on gene-diseases associations available in curated databases. RESULTS Three MPs were observed: gastric (heartburn, acid regurgitation, Helicobacter pylori infection, and ulcer), metabolic syndrome (obesity, type-2 diabetes, hypercholesterolemia, and hypertension), and atopic (nasal allergies, skin allergies, and asthma). Strong associations with PDAC were observed for ≥2 recently diagnosed gastric conditions [odds ratio (OR), 6.13; 95% confidence interval CI 3.01-12.5)] and for ≥3 recently diagnosed metabolic syndrome conditions (OR, 1.61; 95% CI 1.11-2.35). Atopic conditions were negatively associated with PDAC (high adherence score OR for tertile III, 0.45; 95% CI, 0.36-0.55). Combining type-2 diabetes with gastric MP resulted in higher PDAC risk for recent (OR, 7.89; 95% CI 3.9-16.1) and long-term diagnosed conditions (OR, 1.86; 95% CI 1.29-2.67). A common genetic basis between MPs and PDAC was observed in the bioinformatics analysis. CONCLUSIONS Specific multimorbidities aggregate and associate with PDAC in a time-dependent manner. A better characterization of a high-risk population for PDAC may help in the early diagnosis of this cancer. The common genetic basis between MP and PDAC points to a mechanistic link between these conditions.
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Affiliation(s)
- P Gomez-Rubio
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, and CIBERONC, Spain
| | - V Rosato
- Branch of Medical Statistics, Biometry and Epidemiology "G.A. Maccacaro," Department of Clinical Sciences and Community Health, University of Milan, Milan
- Unit of Medical Statistics, Biometry and Bioinformatics, National Cancer Institute, IRCCS Foundation, Milan
| | - M Márquez
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, and CIBERONC, Spain
| | - C Bosetti
- Department of Epidemiology, Mario Negri Institute for Pharmacological Research-IRCCS, Milan, Italy
| | - E Molina-Montes
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, and CIBERONC, Spain
| | - M Rava
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, and CIBERONC, Spain
| | - J Piñero
- Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Pompeu Fabra Univeristy (UPF), Barcelona, Spain
| | - C W Michalski
- Department of Surgery, Technical University of Munich, Munich
- Department of Surgery, University of Heidelberg, Heidelberg, Germany
| | - A Farré
- Department of Gastroenterology, Santa Creu i Sant Pau Hospital, Barcelona
| | - X Molero
- Exocrine Pancreas Research Unit and Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Barcelona
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona
- Network of Biomedical Research Centres (CIBER), Hepatic and Digestive Diseases and Epidemiology and Public Health, Madrid, Spain
| | - M Löhr
- Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - L Ilzarbe
- Department of Gastroenterology, Parc de Salut Mar University Hospital, Barcelona
| | - J Perea
- Department of Surgery, 12 de Octubre University Hospital, Madrid, Spain
| | - W Greenhalf
- Department of Molecular and Clinical Cancer Medicine, The Royal Liverpool University Hospital, Liverpool
| | - M O'Rorke
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - A Tardón
- Network of Biomedical Research Centres (CIBER), Hepatic and Digestive Diseases and Epidemiology and Public Health, Madrid, Spain
- Department of Medicine, University Institute of Oncology of Asturias, Oviedo, Spain
| | - T Gress
- Department of Gastroenterology, University Hospital of Giessen and Marburg, Marburg, Germany
| | - V M Barberá
- Molecular Genetics Laboratory, General University Hospital of Elche, Elche, Spain
| | - T Crnogorac-Jurcevic
- Centre for Molecular Oncology, Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, UK
| | - L Muñoz-Bellvís
- General and Digestive Surgery Department, Salamanca University Hospital, Salamanca
| | - E Domínguez-Muñoz
- Department of Gastroenterology, Clinical University Hospital of Santiago de Compostela, Santiago de Compostela
| | - A Gutiérrez-Sacristán
- Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Pompeu Fabra Univeristy (UPF), Barcelona, Spain
| | - J Balsells
- Exocrine Pancreas Research Unit and Vall d'Hebron Research Institute (VHIR), Vall d'Hebron University Hospital, Barcelona
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona
- Network of Biomedical Research Centres (CIBER), Hepatic and Digestive Diseases and Epidemiology and Public Health, Madrid, Spain
| | - E Costello
- Department of Molecular and Clinical Cancer Medicine, The Royal Liverpool University Hospital, Liverpool
| | - C Guillén-Ponce
- Department of Oncology, Ramón y Cajal Hospital, Madrid, and CIBERONC, Spain
| | - J Huang
- Gastrocentrum, Karolinska Institutet and University Hospital, Stockholm, Sweden
| | - M Iglesias
- Department of Gastroenterology, Parc de Salut Mar University Hospital, Barcelona
| | - J Kleeff
- Department of Surgery, Technical University of Munich, Munich
- Department of Molecular and Clinical Cancer Medicine, The Royal Liverpool University Hospital, Liverpool
| | - B Kong
- Department of Surgery, Technical University of Munich, Munich
| | - J Mora
- Department of Gastroenterology, Santa Creu i Sant Pau Hospital, Barcelona
| | - L Murray
- Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - D O'Driscoll
- Research Programme, National Cancer Registry Ireland
| | - P Peláez
- Department of Surgery, 12 de Octubre University Hospital, Madrid, Spain
| | - I Poves
- Department of Gastroenterology, Parc de Salut Mar University Hospital, Barcelona
| | - R T Lawlor
- ARC-Net Centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital trust of Verona, Verona, Italy
| | - A Carrato
- Department of Oncology, Ramón y Cajal Hospital, Madrid, and CIBERONC, Spain
| | - M Hidalgo
- Clara Campal Integrated Oncological Centre, Sanchinarro Hospital, Madrid, Spain
| | - A Scarpa
- ARC-Net Centre for Applied Research on Cancer and Department of Pathology and Diagnostics, University and Hospital trust of Verona, Verona, Italy
| | - L Sharp
- Research Programme, National Cancer Registry Ireland
- Institute of Health & Society, Newcastle University, UK
| | - L I Furlong
- Research Programme on Biomedical Informatics (GRIB), Hospital del Mar Research Institute (IMIM), Pompeu Fabra Univeristy (UPF), Barcelona, Spain
| | - F X Real
- Epithelial Carcinogenesis Group, Spanish National Cancer Research Centre (CNIO), Madrid, and CIBERONC
- Department of Experimental and Health Sciences, Pompeu Fabra University, Barcelona, Spain
| | - C La Vecchia
- Branch of Medical Statistics, Biometry and Epidemiology "G.A. Maccacaro," Department of Clinical Sciences and Community Health, University of Milan, Milan
| | - N Malats
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Center (CNIO), Madrid, and CIBERONC, Spain
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Escamilla-García E, Alcázar-Pizaña AG, Segoviano-Ramírez JC, Del Angel-Mosqueda C, López-Lozano AP, Cárdenas-Estrada E, De La Garza-Ramos MA, Medina-De La Garza CE, Márquez M. Antimicrobial Activity of a Cationic Guanidine Compound against Two Pathogenic Oral Bacteria. Int J Microbiol 2017; 2017:5924717. [PMID: 28546811 PMCID: PMC5435906 DOI: 10.1155/2017/5924717] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Accepted: 03/05/2017] [Indexed: 01/31/2023] Open
Abstract
This study evaluated the potential antimicrobial properties of a polyguanidine (CatDex) on two oral bacteria. Chlorhexidine gluconate 1340 μmoL L-1 (CHX 0.12%) was used as control. Streptococcus mutans (S. mutans) and Porphyromonas gingivalis (P. gingivalis) were grown in BHI media. Bacterial sensitivity and antimicrobial activity were determined by the minimum inhibitory concentration (MIC) and Kirby-Bauer methods. To study side effects, that is, toxicity, dental pulp stem cells (DPSCs) were used. Fluorometric cytotoxicity and confocal microscopy assays were used in order to test cell viability. CatDex inhibited growth of S. mutans at all concentrations and growth of P. gingivalis at all concentrations except 25 μmoL L-1. The MIC of CatDex was 50 μmoL L-1 for both S. mutans and P. gingivalis. The inhibition of bacteria exposed for 8 h at 50 μmoL L-1 of CatDex exhibited increased antimicrobial activity over time, with 91% inhibition in both bacteria. The antimicrobial activities of CatDex and CHX were similar when tested on two common bacteria. CatDex was significantly less toxic to DPSCs. CatDex toxicity depended on time and not on concentration. With regard to clinical relevance, CatDex may have potential as a novel antimicrobial agent. Further studies are in progress.
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Affiliation(s)
- E. Escamilla-García
- Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - A. G. Alcázar-Pizaña
- Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - J. C. Segoviano-Ramírez
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
| | - C. Del Angel-Mosqueda
- Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - A. P. López-Lozano
- Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - E. Cárdenas-Estrada
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - M. A. De La Garza-Ramos
- Facultad de Odontología, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
| | - C. E. Medina-De La Garza
- Centro de Investigación y Desarrollo en Ciencias de la Salud (CIDICS), Universidad Autónoma de Nuevo León, Ave. Gonzalitos s/n con Ave. Dr. Carlos Canseco, Mitras Centro, 64460 Monterrey, NL, Mexico
- Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, NL, Mexico
| | - M. Márquez
- Department of Oncology-Pathology, CCK, Karolinska Institutet, 171 76 Stockholm, Sweden
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Neukam K, Morano-Amado LE, Rivero-Juárez A, Macías J, Granados R, Romero-Palacios A, Márquez M, Merino D, Ortega E, Alados-Arboledas JC, Cucurull J, Omar M, Ryan-Murua P, Pineda JA. Liver stiffness predicts the response to direct-acting antiviral-based therapy against chronic hepatitis C in cirrhotic patients. Eur J Clin Microbiol Infect Dis 2016; 36:853-861. [PMID: 28004322 DOI: 10.1007/s10096-016-2871-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [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: 10/17/2016] [Accepted: 12/07/2016] [Indexed: 12/21/2022]
Abstract
The purpose of this investigation was to evaluate the impact of liver stiffness (LS) on the response to direct-acting antiviral (DAA)-based therapy against hepatitis C virus (HCV) infection in cirrhotic patients. Those patients included in two Spanish prospective cohorts of patients receiving therapy based on at least one DAA, who showed a baseline LS ≥ 12.5 kPa and who had reached the scheduled time point for sustained virological response evaluation 12 weeks after completing therapy (SVR12) were analysed. Pegylated interferon/ribavirin-based therapy plus an HCV NS3/4A protease inhibitor (PR-PI group) was administered to 198 subjects, while 146 received interferon-free regimens (IFN-free group). The numbers of patients with SVR12 according to an LS < 21 kPa versus ≥21 kPa were 59/99 (59.6%) versus 46/99 (46.5%) in the PR-PI group (p = 0.064) and 41/43 (95.3%) versus 90/103 (87.4%) in the IFN-free group (p = 0.232). Corresponding figures for the relapse rates in those who presented end-of-treatment response (ETR) were 3/62 (4.8%) versus 10/56 (17.9%, p = 0.024) and 1/42 (2.4%) versus 8/98 (8.2%, p = 0.278), respectively. In a multivariate analysis adjusted for age, sex and use of interferon, a baseline LS ≥ 21 kPa was identified as an independent predictor of relapse [adjusted odds ratio, AOR (95% confidence interval, CI): 4.228 (1.344-13.306); p = 0.014] in those patients with ETR. LS above 21 kPa is associated with higher rates of relapse to DAA-based therapy in HCV-infected patients with cirrhosis in clinical practice. LS could help us to tailor the duration and composition of DAA-based combinations in cirrhotic subjects, in order to minimise the likelihood of relapse.
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Affiliation(s)
- K Neukam
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain.
| | - L E Morano-Amado
- Unit of Infectious Pathology, Hospital Universitario Alvaro Cunqueiro, Vigo, Spain
| | - A Rivero-Juárez
- Unit of Infectious Diseases, Hospital Universitario Reina Sofía, Maimónides Institute of Biomedical Investigation of Cordoba (IMIBIC), University of Cordoba, Cordoba, Spain
| | - J Macías
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain
| | - R Granados
- Unit of Infectious Diseases, Hospital Universitario de Gran Canaria Dr Negrín, Las Palmas de Gran Canaria, Spain
| | - A Romero-Palacios
- Unit of Infectious Diseases, Hospital Universitario Puerto Real, Puerto Real, Spain
| | - M Márquez
- Unit of Infectious Diseases, Hospital Universitario Virgen de la Victoria, Malaga, Spain
| | - D Merino
- Unit of Infectious Diseases, Complejo Hospitalario Universitario de Huelva, Huelva, Spain
| | - E Ortega
- Unit of Infectious Diseases, Consorcio Hospital General Universitario de Valencia, Valencia, Spain
| | - J C Alados-Arboledas
- Unit of Infectious Diseases and Microbiology, AGS Norte de Cádiz, Jerez de la Frontera, Spain
| | - J Cucurull
- Service of Internal Medicine, Hospital de Figueres-Fundació Salut Empordà, Figueres, Spain
| | - M Omar
- Unit of Infectious Diseases, Complejo Hospitalario de Jaén, Jaen, Spain
| | - P Ryan-Murua
- Internal Medicine Service, Hospital Universitario Infanta Leonor, Madrid, Spain
| | - J A Pineda
- Unit of Infectious Diseases and Microbiology, Hospital Universitario de Valme, Seville, Spain
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7
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Abstract
Our objective is to analyse patients diagnosed with late-stage HIV infection in the highly active antiretroviral therapy (HAART) area. A prospective, observational study of all patients with an initial CD4<50 × 106/L was carried out. Epidemiological, clinical and HAART-associated data were analysed. Survival rates were estimated and pairs of survival curves were compared. The statistical program used was SPSS® (version 10). In all, 349 HIV-infected patients were diagnosed, 117 (33.5%) had late-stage disease, mean CD4 23.9 × 106/L and mean viral load (VL) 5.38 log10. In 98 men, mean age 39.5 years, percentage of AIDS cases at their first attendance was 83.8%. The median follow-up period was 28 months and 27 died. Pneumocystis carinii was the most frequent cause of AIDS (24.4%) and death (18.5%). Survival rates at 12, 24 and 36 months were 95.6%, 85.8% and 72.4%. HAART was started in 82.1%. VLs <50 copies/mL at one, two and three years of treatment were 55.2%, 55.7% and 58.0%. Resource utilization included 0.58 hospitalization/patient/year and 0.07 events/patient/year. HAART-related complications were as follows: 50% lipodystrophy, 9.7% hypertension, 22.2% hyperglycaemia, 26.4% hypercholesterolaemia, 31.9% hypertrygliceridaemia and 18.1% mixed hyperlipaemia. Over one-third of our patients have advanced HIV infection at diagnosis. However, the outcome is favourable, with a good immunovirological response and few new opportunistic events. HAART-related complications were frequent.
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Affiliation(s)
- J Santos
- Infectious Diseases Unit, Internal Medicine Service, Hospital Virgen de la Victoria, Campus Teatinus s/n, 29010 Málaga, Spain.
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8
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López de Maturana E, Picornell A, Masson-Lecomte A, Kogevinas M, Márquez M, Carrato A, Tardón A, Lloreta J, García-Closas M, Silverman D, Rothman N, Chanock S, Real FX, Goddard ME, Malats N. Prediction of non-muscle invasive bladder cancer outcomes assessed by innovative multimarker prognostic models. BMC Cancer 2016; 16:351. [PMID: 27259534 PMCID: PMC4893282 DOI: 10.1186/s12885-016-2361-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [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: 11/03/2015] [Accepted: 05/12/2016] [Indexed: 01/28/2023] Open
Abstract
Background We adapted Bayesian statistical learning strategies to the prognosis field to investigate if genome-wide common SNP improve the prediction ability of clinico-pathological prognosticators and applied it to non-muscle invasive bladder cancer (NMIBC) patients. Methods Adapted Bayesian sequential threshold models in combination with LASSO were applied to consider the time-to-event and the censoring nature of data. We studied 822 NMIBC patients followed-up >10 years. The study outcomes were time-to-first-recurrence and time-to-progression. The predictive ability of the models including up to 171,304 SNP and/or 6 clinico-pathological prognosticators was evaluated using AUC-ROC and determination coefficient. Results Clinico-pathological prognosticators explained a larger proportion of the time-to-first-recurrence (3.1 %) and time-to-progression (5.4 %) phenotypic variances than SNPs (1 and 0.01 %, respectively). Adding SNPs to the clinico-pathological-parameters model slightly improved the prediction of time-to-first-recurrence (up to 4 %). The prediction of time-to-progression using both clinico-pathological prognosticators and SNP did not improve. Heritability (ĥ2) of both outcomes was <1 % in NMIBC. Conclusions We adapted a Bayesian statistical learning method to deal with a large number of parameters in prognostic studies. Common SNPs showed a limited role in predicting NMIBC outcomes yielding a very low heritability for both outcomes. We report for the first time a heritability estimate for a disease outcome. Our method can be extended to other disease models. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2361-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- E López de Maturana
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández, Almagro, 3, 28029, Madrid, Spain
| | - A Picornell
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández, Almagro, 3, 28029, Madrid, Spain
| | - A Masson-Lecomte
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández, Almagro, 3, 28029, Madrid, Spain
| | - M Kogevinas
- Centre for Research in Environmental Epidemiology (CREAL), Parc de Salut Mar, Barcelona, Spain.,CIBERESP, Madrid, Spain
| | - M Márquez
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández, Almagro, 3, 28029, Madrid, Spain
| | - A Carrato
- Servicio de Oncología, Hospital Universitario Ramon y Cajal, Madrid, and Servicio de Oncología, Hospital Universitario de Elche, Elche, Spain
| | - A Tardón
- Department of Preventive Medicine Universidad de Oviedo, Oviedo, Spain.,CIBERESP, Madrid, Spain
| | - J Lloreta
- Parc de Salut Mar and Departament of Pathology, Hospital del Mar - IMAS, Barcelona, Spain
| | - M García-Closas
- Division of Genetics and Epidemiology, Institute of Cancer Research, London, UK
| | - D Silverman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Department of Health and Human Services, Bethesda, Maryland, USA
| | - N Rothman
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Department of Health and Human Services, Bethesda, Maryland, USA
| | - S Chanock
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Department of Health and Human Services, Bethesda, Maryland, USA
| | - F X Real
- Epithelial Carcinogenesis Group, Spanish National Cancer Research Centre (CNIO), Madrid, and Departament de Ciències Experimentals i de la Salut, Universitat Pompeu Fabra, Barcelona, Spain
| | - M E Goddard
- Biosciences Research Division, Department of Environment and Primary Industries, Agribio, and Department of Food and Agricultural Systems, University of Melbourne, Melbourne, Australia
| | - N Malats
- Genetic and Molecular Epidemiology Group, Spanish National Cancer Research Centre (CNIO), C/Melchor Fernández, Almagro, 3, 28029, Madrid, Spain.
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9
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Borges-Alvarez M, Benavente F, Márquez M, Barbosa J, Sanz-Nebot V. Evaluation of non-immunoaffinity methods for isolation of cellular prion protein from bovine brain. Anal Biochem 2014; 451:10-7. [DOI: 10.1016/j.ab.2014.01.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 01/07/2014] [Accepted: 01/13/2014] [Indexed: 11/30/2022]
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10
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Macías J, Recio E, Márquez M, García C, Jiménez P, Merino D, Muñoz L, Pasquau J, Ojeda G, Bancalero P, Chueca N, Pineda JA. Efficacy and safety of once-daily maraviroc plus ritonavir-boosted darunavir in pretreated HIV-infected patients in a real-life setting. HIV Med 2014; 15:417-24. [DOI: 10.1111/hiv.12129] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/13/2013] [Indexed: 11/27/2022]
Affiliation(s)
- J Macías
- Unit of Infectious Diseases and Microbiology; Hospital Universitario de Valme; Seville Spain
- Instituto de Biomedicina de Sevilla (IBiS); Seville Spain
| | - E Recio
- Unit of Infectious Diseases and Microbiology; Hospital Universitario de Valme; Seville Spain
- Instituto de Biomedicina de Sevilla (IBiS); Seville Spain
| | - M Márquez
- Unit of Infectious Diseases; Hospital Virgen de la Victoria; Malaga Spain
| | - C García
- Unit of Infectious Diseases; Hospital Jerez de la Frontera; Cadiz Spain
| | - P Jiménez
- Unit of Infectious Diseases; Hospital Universitario Puerto Real; Cadiz Spain
| | - D Merino
- Unit of Infectious Diseases; Complejo Hospitalario de Huelva; Huelva Spain
| | - L Muñoz
- Unit of Infectious Diseases; Hospital Universitario San Cecilio; Granada Spain
| | - J Pasquau
- Unit of Infectious Diseases; Hospital Universitario Virgen de las Nieves; Granada Spain
| | - G Ojeda
- Unit of Infectious Diseases; Hospital Virgen de la Victoria; Malaga Spain
| | - P Bancalero
- Unit of Infectious Diseases; Hospital Jerez de la Frontera; Cadiz Spain
| | - N Chueca
- Department of Microbiology; Hospital Universitario San Cecilio; Granada Spain
| | - JA Pineda
- Unit of Infectious Diseases and Microbiology; Hospital Universitario de Valme; Seville Spain
- Instituto de Biomedicina de Sevilla (IBiS); Seville Spain
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11
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Font C, Mascort J, Márquez M, Esteban C, Sánchez D, Durall N, Pumarola M, Luján A. Paraparesis as initial manifestation of a Prototheca zopfii infection in a dog. J Small Anim Pract 2014; 55:283-6. [PMID: 24502403 DOI: 10.1111/jsap.12188] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A case of protothecosis causing non-ambulatory paraparesis in a dog without clinical evidence of disseminated infection is described. A five-year-old female Labrador retriever was referred with a 10-day history of progressive non-ambulatory paraparesis and lumbar pain as the only physical and neurological abnormalities. Lumbar myelography revealed severe extradural spinal cord compression extending from L4 to L7 vertebrae, and a right hemilaminectomy was performed. Surgical findings included an adherent whitish hard ill-defined mass. Cytology and biopsy results disclosed the presence of algae enclosed in a matrix of chronic inflammatory infiltrate. Culture confirmed the presence of Prototheca species. Neurological improvement occurred within a month, and the dog received antifungal treatment without evidence of clinical disseminated disease for 6 months, but died after a generalised tonic-clonic seizure. Post-mortem examination revealed multiple foci of inflammatory granulomatous infiltrate and algae-like structures in the brain, lumbar intumescence and cauda equina. Prototheca zopfii was identified using molecular biology methods.
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Affiliation(s)
- C Font
- Hospital ARS Veterinaria, Cardedeu 3, 08023, Barcelona, Spain
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12
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Marco-Salazar P, Márquez M, Fondevila D, Rabanal RM, Torres JM, Pumarola M, Vidal E. Mapping of neurotrophins and their receptors in the adult mouse brain and their role in the pathogenesis of a transgenic murine model of bovine spongiform encephalopathy. J Comp Pathol 2013; 150:449-62. [PMID: 24456748 DOI: 10.1016/j.jcpa.2013.11.209] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [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: 06/12/2013] [Revised: 09/30/2013] [Accepted: 11/26/2013] [Indexed: 01/08/2023]
Abstract
Neurotrophins are a family of growth factors that act on neuronal cells. The neurotrophins include nerve growth factor (NGF), brain-derived neurotrophic factor (BDNF) and neurotrophin (NT)-3, -4 and -5. The action of neurotrophins depends on two transmembrane-receptor signalling systems: (1) the tropomyosin-related kinase (Trk) family of tyrosine kinase receptors (Trk A, Trk B and Trk C) and (2) the p75 neurotrophin receptor (p75(NTR)). The interaction between neurotrophic factors and their receptors may be involved in the mechanisms that regulate the differential susceptibility of neuronal populations in neurodegenerative diseases. The aim of the present study was to evaluate the role of neurotrophins in the pathogenesis of bovine spongiform encephalopathy (BSE) using a transgenic mouse overexpressing bovine prnp (BoTg 110). Histochemistry for Lycopersicum esculentum agglutinin, haematoxylin and eosin staining and immunohistochemistry for the abnormal isoform of the prion protein (PrP(d)), glial fibrillary acidic protein (GFAP), NGF, BDNF, NT-3 and the receptors Trk A, Trk B, Trk C and p75(NTR) was performed. The lesions and the immunolabelling patterns were assessed semiquantitatively in different areas of the brain. No significant differences in the immunolabelling of neurotrophins and their receptors were observed between BSE-inoculated and control animals, except for p75(NTR), which showed increased expression correlating with the distribution of lesions, PrP(d) deposition and gliosis in the BSE-inoculated mice.
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Affiliation(s)
- P Marco-Salazar
- Department of Animal Medicine and Surgery, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - M Márquez
- Department of Animal Medicine and Surgery, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - D Fondevila
- Department of Animal Medicine and Surgery, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - R M Rabanal
- Department of Animal Medicine and Surgery, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - J M Torres
- CISA-INIA, 28130 Valdeolmos, Madrid, Spain
| | - M Pumarola
- Department of Animal Medicine and Surgery, Veterinary Faculty, Universitat Autònoma de Barcelona (UAB), 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - E Vidal
- Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
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13
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Filali H, Vidal E, Bolea R, Márquez M, Marco P, Vargas A, Pumarola M, Martin-Burrie I, Badiola J. Gene and Protein Patterns of Six Scrapie-related Markers in the CNS of Naturally Infected Sheep. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.048] [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: 10/27/2022]
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14
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Hedman C, Marín B, Corbière F, Filali H, Márquez M, Vidal E, Vázquez F, Romero A, Pitarch J, Garza M, Sarasa R, Jirón W, Hernandez R, Acín C, Monzón M, Pumarola M, Badiola J, Andreoletti O, Bolea R. Experimental Sheep–Bovine Spongiform Encephalopathy in Pigs. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.110] [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: 11/26/2022]
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15
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Márquez M, Capdevila S, Zamora C, Rabanal R, Pumarola M, Martín Caballero J. Degenerative Motor Polioencephalopathy with Cytoskeleton Disruption in Genetically Modified Mice. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.201] [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: 10/27/2022]
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16
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Márquez M, Pedregosa JR, López J, Marco-Salazar P, Fondevila D, Pumarola M. Canine Leishmaniosis in the Central and Peripheral Nervous Systems. J Comp Pathol 2013. [DOI: 10.1016/j.jcpa.2012.11.142] [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: 11/30/2022]
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17
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Márquez M, Ródenas S, Molin J, Rabanal RM, Fondevila D, Añor S, Pumarola M. Protothecal pyogranulomatous meningoencephalitis in a dog without evidence of disseminated infection. Vet Rec 2012; 171:100. [DOI: 10.1136/vr.100661] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- M. Márquez
- Banc de Teixits Animals de Catalunya (BTAC); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - S. Ródenas
- Banc de Teixits Animals de Catalunya (BTAC); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - J. Molin
- Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - R. M. Rabanal
- Centre de Biotecnologia Animal i Teràpia (CBATEG); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - D. Fondevila
- Centre de Biotecnologia Animal i Teràpia (CBATEG); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - S. Añor
- Banc de Teixits Animals de Catalunya (BTAC); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
| | - M. Pumarola
- Banc de Teixits Animals de Catalunya (BTAC); Universitat Autònoma de Barcelona; 08193 Bellaterra (Cerdanyola del Vallès) Barcelona Spain
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18
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Gallego M, Robles M, Palacios R, Ruiz J, Nuño E, Márquez M, Andrade R, Santos J. Impact of Acute Hepatitis A Virus (HAV) Infection on HIV Viral Load in HIV-Infected Patients and Influence of HIV Infection on Acute HAV Infection. ACTA ACUST UNITED AC 2011; 10:40-2. [DOI: 10.1177/1545109710385692] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose: To assess the effect of hepatitis A virus (HAV) infection on HIV viral load (VL) and the influence of HIV on the clinical expression of HAV infection. Methods: Single-center study of 23 HIV-positive patients and 41 HIV-negative patients diagnosed with acute HAV infection during 2008-2009. The impact of HAV on HIV VL was defined as an increase of >0.5 log10 during the event, or a detectable VL for those previously suppressed patients. Results: The impact of acute HAV on VL was observed in 37.5% patients. HIV-negative patients were younger (27 vs 34 years, P < .0001), and serum transaminases levels normalized earlier than in the HIV-positive patients (121 vs 178 days, P < .05). Conclusions: Acute HAV infection may have an impact on HIV VL. The interactions between the 2 viruses may not only prolong the HAV viremia, with a potential increase in the transmission of infection, but the impact on HIV may increase the risk of HIV transmission. Studies with higher sample size are needed to confirm our results.
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Affiliation(s)
- M. Gallego
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - M. Robles
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain, Servicio de Digestivo, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - R. Palacios
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - J. Ruiz
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - E. Nuño
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - M. Márquez
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - R. Andrade
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain
| | - J. Santos
- Unidad de Gestión Clínica de Enfermedades Infecciosas, Hospital Universitario Virgen de la Victoria, Málaga, Spain,
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19
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Palacios R, Puerta S, Orihuela F, Olalla J, Roldán J, Grana M, Márquez M, Colmenero J, Santos J. Short communication: contribution of the immunovirological state and traditional cardiovascular risk factors to low HDL-cholesterol in HIV patients. AIDS Res Hum Retroviruses 2010; 26:1167-70. [PMID: 20929391 DOI: 10.1089/aid.2009.0284] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The prevalence of low HDL-C levels in an HIV population and its related factors was investigated. We undertook a multicenter, cross-sectional study of all HIV patients on regular follow-up in five hospitals (Southern Spain). A physical examination and fasting laboratory analysis were performed and a questionnaire about cardiovascular risk factors was provided. One thousand and seventy-two patients were included, 43.8% of whom had low HDL-C levels. The prevalence of low HDL-C was higher among patients diagnosed with AIDS, those not on antiretroviral therapy, those with a detectable HIV viral load, those with CD4 cell counts ≤350 cells/μl, smokers, and those with hypertriglyceridemia. For patients on antiretroviral therapy, the prevalence of low HDL-C was higher for those on protease inhibitors than those taking nonnucleoside reverse transcriptase inhibitors. In the multivariate analysis, low HDL-C levels were associated with tobacco use (OR 1.37, 95% CI 1.04-1.8; p = 0.04), hypertriglyceridemia (OR 2.94, 95% CI 2.2-3.8; p < 0.00001), CD4 cells count ≤350 cells/μl (OR 1.74, 95% CI 1.2-2.3; p < 0.0001), and a detectable HIV viral load (OR 1.85, 95% CI 1.3-2.5; p < 0.0001). The immunological and virological conditions, in addition to traditional cardiovascular risk factors such as tobacco use and hypertriglyceridemia, affect HDL-C levels in HIV-infected patients. For patients on antiretroviral therapy, the use of protease inhibitors is associated with a higher probability of low levels of HDL-C. Although it is not clear if the higher HDL-C levels associated with antiretroviral use are surrogates for decreased cardiovascular disease risk, this may be another reason to start antiretroviral therapy earlier.
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Affiliation(s)
- R. Palacios
- Hospital Virgen de la Victoria, Málaga, Spain
| | - S. Puerta
- Hospital Virgen de la Victoria, Málaga, Spain
| | | | - J. Olalla
- Hospital Costa del Sol, Marbella, Spain
| | - J. Roldán
- Hospital de Antequera, Antequera, Spain
| | - M. Grana
- Hospital de la Serranía, Ronda, Spain
| | - M. Márquez
- Hospital Virgen de la Victoria, Málaga, Spain
| | | | - J. Santos
- Hospital Virgen de la Victoria, Málaga, Spain
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Márquez M, Nava-González F, Sánchez D, Calcagno M, Lampo M. Immmunological clearance of Batrachochytrium dendrobatidis infection at a pathogen-optimal temperature in the hylid frog Hypsiboas crepitans. Ecohealth 2010; 7:380-388. [PMID: 20890631 DOI: 10.1007/s10393-010-0350-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2009] [Revised: 08/05/2010] [Accepted: 08/19/2010] [Indexed: 05/29/2023]
Abstract
Amphibian declines worldwide have been linked to the fungal disease chytridiomycosis. Its causative agent (Batrachochytrium dendrobatidis, hereafter Bd), however, also infects many nondeclining species. Experimental infections have shown species-specific and temperature-dependent frog responses to Bd infection. Although Bd infection may be eliminated by housing amphibians at temperatures above those tolerated by the fungus, the question of whether frogs can eliminate infection under more favorable conditions remains unanswered. Repeated diagnostics using real-time polymerase chain reaction (rt-PCR) assays of postmetamorphic individuals at 28, 38, 45, 53, and 62 days after exposure demonstrated that Hypsiboas crepitans is able to clear infection within a few weeks at 23°C. Thus, we demonstrate a temperature-independent and likely immunological mechanism for the clearance of Bd in a resistant amphibian species. Future studies are needed to determine the generality of this mechanism among amphibians and to describe the immune factors affecting different outcomes of Bd exposure including resistance to infection, tolerance of infection, and clearance of infection.
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Affiliation(s)
- M Márquez
- Centro de Ecología, Instituto Venezolano de Investigaciones Científicas, Caracas, Venezuela
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21
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Ivanova Georgieva R, García López MV, Ruiz-Morales J, Martínez-Marcos FJ, Lomas JM, Plata A, Noureddine M, Hidalgo-Tenorio C, Reguera JM, De la Torre Lima J, Gálvez Aceval J, Márquez M, de Alarcón A. Streptococcus agalactiae left-sided infective endocarditis. Analysis of 27 cases from a multicentric cohort. J Infect 2010; 61:54-9. [PMID: 20417661 DOI: 10.1016/j.jinf.2010.04.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2010] [Revised: 04/14/2010] [Accepted: 04/17/2010] [Indexed: 01/08/2023]
Abstract
SUMMARY OBJECTIVE To evaluate the current trends in the clinical characteristics and the prognosis of Streptococcus agalactiae infective endocarditis (IE), uncommon disease associated with high mortality. METHODS Descriptive analysis of 27 cases of a large cohort (961 episodes) of infective endocarditis collected in seven hospitals of Andalusia (Spain) between 1984 and 2008. RESULTS Native valves were affected in most cases (85. 2%), multiple valves were frequently involved (22.2%). The median age of the patients was 65 (51-76) years (59.3% men), with a comorbidity, according to the Charlson index, of 2.6+/-2.3. The most frequent underlying diseases were diabetes mellitus (25.9%), chronic obstructive pulmonary disease (14.8%), neoplasms (14.8%), urological disorders (11%) and chronic liver disease (11%). Clinical presentation was characterized by rapid worsening (median of 9 (5.7-15) days from onset of symptoms until diagnosis), a high rate of embolisms (37%) and cardiac complications (abscesses, fistulas or valve rupture) - 37% of cases. Surgery was performed in 12 patients (44.4%) and a high mortality (40.7%) was observed. CONCLUSION S. agalactiae IE is a serious disease with aggressive course and high mortality rate and affects patients with debilitating diseases. We must be alert of the development of complications and consider early valve surgery when it is necessary.
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Affiliation(s)
- R Ivanova Georgieva
- Hospital Virgen de la Victoria, Campus Universitario de Teatinos, 29010 Malaga, Spain.
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Gómez L, Estrada C, Gómez I, Márquez M, Estany C, Martí JM, Bastús R, Cirera L, Quintana S, Garau J. Low-dose beta-lactam plus amikacin in febrile neutropenia: cefepime vs. piperacillin/tazobactam, a randomized trial. Eur J Clin Microbiol Infect Dis 2010; 29:417-27. [PMID: 20195673 DOI: 10.1007/s10096-010-0879-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [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: 06/29/2009] [Accepted: 01/05/2010] [Indexed: 11/28/2022]
Abstract
Patients with fever and granulocytopenia are at risk of developing severe infection. We performed a prospective, randomized trial to evaluate the efficacy of low-dose cefepime plus amikacin (C-A) compared to low-dose piperacillin/tazobactam plus amikacin (PT-A). Patients received cefepime (2 g/12 h) plus amikacin (15 mg/kg/day) or piperacillin/tazobactam (4 g/500 mg/8 h) plus amikacin. A total of 317 episodes of febrile granulocytopenia in 190 patients were studied (152 in the C-A group, 165 in the PT-A group). A microbiologically documented infection was present in 53 (35%) episodes in the C-A group and 41 (25%) episodes in the PT-A group (p = ns); a clinically documented infection was observed in 39 (26%) and 47 (28%) episodes, respectively. Toxicity was observed in 6 (4%) episodes in the C-A group and in 5 (3%) episodes in the PT-A group. The antibiotic success rate (no change or addition of antibiotics) was recorded in 89 (59%) and 105 (64%) cases, respectively (p = ns). Mortality related to infection was similar in each arm (3.9% vs. 3.6%). Combination therapy of low-dose beta-lactam with an aminoglycoside achieves very good response rates and low rates of toxicity. It might be an attractive option in an environment of increasing resistance among gram-negative bacteria.
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Affiliation(s)
- L Gómez
- Infectious Diseases Unit, Hospital Universitari Mutua de Terrassa, University of Barcelona, Terrassa, Barcelona, Spain.
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Palacios R, González-Correa JA, Ruiz J, Nuño E, Márquez M, de la Cruz JP, Santos J. Platelet activity in HIV-infected patients on abacavir-containing antiretroviral therapy. J Int AIDS Soc 2010. [PMCID: PMC3113068 DOI: 10.1186/1758-2652-13-s4-p63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Merchante N, Rivero A, de Los Santos-Gil I, Merino D, Márquez M, López-Ruz MA, Rodríguez-Baño J, Del Valle J, Camacho A, Sanz-Sanz J, Macías J, Pérez-Camacho I, Gómez-Mateos J, Moro A, Pineda JA. Insulin resistance is associated with liver stiffness in HIV/HCV co-infected patients. Gut 2009; 58:1654-60. [PMID: 19625279 DOI: 10.1136/gut.2009.179085] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [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: 12/18/2022]
Abstract
BACKGROUND The factors that influence liver fibrosis progression in patients co-infected with human immunodeficiency virus/hepatitis C virus (HIV/HCV) are not completely understood. It is not known if insulin resistance (IR), a condition that promotes liver fibrosis in HCV mono-infected individuals, is one of these factors. OBJECTIVE To evaluate the association between IR and liver stiffness (LS). DESIGN Multicentre cross-sectional study. PATIENTS 330 patients co-infected with HIV/HCV. METHODS LS was assessed by transient elastography, which has shown a high accuracy to predict significant fibrosis in patients co-infected with HIV/HCV. The outcome variable of the study was LS. Patients with LS> or =9 kPa were considered as having significant fibrosis. IR was calculated using the HOMA method. RESULTS LS was > or =9 kPa in 150 (45%) patients. HOMA correlated with LS (Spearman's rho correlation coefficient, 0.37; p<0.0001). The median (Q1-Q3) HOMA in patients with LS> or =9 kPa was 3.30 (2.17-5.16) while it was 2.09 (1.37-3.22) in patients with LS <9 kPa (p<0.0001). Ninety-six (39%) individuals with a HOMA <4 and 54 (63%) with a HOMA > or =4 showed LS> or =9 kPa (p<0.0001). Analyses after excluding patients with cirrhosis yielded similar results. After multivariate analyses, age > or =40 years (adjusted odds ratio (AOR), 1.85; 95% confidence interval (CI), 1.03 to 3.29; p = 0.03), CD4 cell count <200 cells/ml (AOR, 3.45; 95% CI, 1.67 to 7.11; p = 0.001), hepatitis B virus co-infection (AOR, 9.25; 95% CI, 2.42 to 35.31; p = 0.001), and HOMA > or =4 (AOR, 5.33; 95% CI, 2.70 to 10.49; p<0.0001) were the independent predictors of LS> or =9 kPa. CONCLUSION IR is associated with LS in patients co-infected with HIV/HCV.
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Affiliation(s)
- N Merchante
- Unidad de Enfermedades Infecciosas. Hospital Universitario de Valme. Avenida de Bellavista, Sevilla, Spain.
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Baturone R, Soto MJ, Márquez M, Macías I, Montes de Oca M, Medina F, Chozas N, García-Pérez S, Girón-González JA. Health-related quality of life in patients with primary Sjögren's syndrome: relationship with serum levels of proinflammatory cytokines. Scand J Rheumatol 2009; 38:386-9. [DOI: 10.1080/03009740902973821] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Capucchio MT, Márquez M, Pregel P, Foradada L, Bravo M, Mattutino G, Torre C, Schiffer D, Catalano D, Valenza F, Guarda F, Pumarola M. Parenchymal and vascular lesions in ageing equine brains: histological and immunohistochemical studies. J Comp Pathol 2009; 142:61-73. [PMID: 19744668 DOI: 10.1016/j.jcpa.2009.07.007] [Citation(s) in RCA: 22] [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: 04/15/2009] [Revised: 06/11/2009] [Accepted: 07/18/2009] [Indexed: 11/18/2022]
Abstract
Many age-related changes are described in the nervous system of different species, but detailed studies of brain lesions in ageing horses are lacking. The aim of the present study was to systematically characterize lesions in the brains of 60 horses aged from 7 to 23 years. No gross changes were present in any brain. Microscopically, spongiform changes, lipofuscin storage, corpora amylacea, gliosis and satellitosis were common, together with axonal and neuronal swellings. The most important findings were the presence of pseudocalcium-calcium (pCa-Ca) deposits and arterial wall degeneration. Scanning electron microscopical examination of two cases with vascular mineralization revealed marked deposition of an amorphous substance in the vessel walls that was probably formed by a polyanionic protein matrix and a mineral component. Immunohistochemically, numerous axonal spheroids were positively labelled for ubiquitin. No PrPsc was detected in sections with neuronal vacuolation. Neuronal swelling, corpora amylacea, hippocampal Tau-positive neurons and methenamine-positive diffuse (preamyloid) plaques were also detected. Congo red staining failed to detect amyloid deposition. The characterization of age-related lesions in the brains of these horses will allow these changes to be discriminated from pathological processes in future studies. Some lesions described here, including some vascular changes, the presence of diffuse plaques and tau accumulation in hippocampal neurons, have not been described previously in the horse.
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Affiliation(s)
- M T Capucchio
- Department of Animal Pathology, Faculty of Veterinary Medicine, University of Torino, 10095 Grugliasco, Torino, Italy.
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27
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Márquez M, Fernández-Gutiérrez C, Montes-de-Oca M, Blanco MJ, Brun F, Rodríguez-Ramos C, Girón-González JA. Chronic antigenic stimuli as a possible explanation for the immunodepression caused by liver cirrhosis. Clin Exp Immunol 2009; 158:219-29. [PMID: 19737142 DOI: 10.1111/j.1365-2249.2009.04005.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The objectives of this work were the analysis of the functional characteristics of circulating monocytes and T lymphocytes in patients with liver cirrhosis, and evaluation of the relationship with an increased exposure to antigens due to bacterial translocation. Forty patients with liver cirrhosis (20 with compensated cirrhosis and 20 with ascitic decompensation) and 20 healthy control subjects were studied. Bacterial translocation was evaluated by serum levels of lipopolysaccharide binding protein (LBP). Macrophage activation was studied by CD40 antigen expression. T lymphocytes were analysed for activation (CD25(+), CD122(+)), effector function (CD8(+)CD45RO(+)CD57(+)), apoptosis (CD95(+)) and regulatory abilities, either by analysis of the membrane expression of co-stimulatory molecules CD80, CD86 and CD28, or by quantification of regulatory T cells CD4(+)CD25(high)forkhead box P3 (FoxP3). The percentage of activated monocytes and T lymphocytes in patients was increased significantly. The proportions of effector senescent cells and of those near to apoptosis were also significantly higher. With respect to these proportions, there were no significant differences between patients in function of the presence or absence of decompensation or in function of the increased or normal values of LBP. Conversely, those patients with elevated levels of LBP presented a significantly higher frequency of regulatory T cells than those with normal levels. In conclusion, patients with liver cirrhosis showed an intensive activation state with a higher percentage of cells committed to activation-induced death, even in non-advanced stages. It is possible that bacterial permeability and endotoxaemia contribute to the expansion of those lymphocyte populations implicated in the prevention of a more severe antigen-induced immunopathology.
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Affiliation(s)
- M Márquez
- Infectious Diseases Units, Internal Medicine, Hospital Universitario Puerta del Mar, Cadiz, Spain
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Vidal E, Acín C, Foradada L, Monzón M, Márquez M, Monleón E, Pumarola M, Badiola JJ, Bolea R. Immunohistochemical characterisation of classical scrapie neuropathology in sheep. J Comp Pathol 2009; 141:135-46. [PMID: 19515381 DOI: 10.1016/j.jcpa.2009.04.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 03/02/2009] [Accepted: 04/21/2009] [Indexed: 10/20/2022]
Abstract
Neuroinflammation elicited by PrP(res) (resistant prion protein [PrP]) deposits in the central nervous system (CNS) has been shown to involve cellular and oxidative stress responses in bovine spongiform encephalopathy (BSE) as well as in several murine models of transmissible spongiform encephalopathy (TSE). Additionally, deregulation of water homeostasis has been suggested to be a further component of the spongiform changes observed in TSEs. The aim of the present study was to characterize the pathogenic events occurring in the CNS of sheep with spontaneously arising classical scrapie. Brains from seven affected animals and two controls were subject to immunohistochemical and histochemical examinations. Semi-quantitative evaluation of PrP(res) deposits and spongiform changes throughout the encephalon confirmed that PrP(res) deposition elicits significant astroglial and microglial reactions, as evidenced by an increase in the number of glial cells and changes in glial cell morphology involving increased expression of vimentin. The altered expression of metallothionein and heat shock protein 25 (HSP25) suggested that this neuroinflammatory reaction entails cellular and oxidative stress responses. In contrast, there was no change in expression of the membrane-associated water channel aquaporin 1 when PrP(res) accumulated in the brain.
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Affiliation(s)
- E Vidal
- Priocat Laboratory, Centre de Recerca en Sanitat Animal, UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
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Díaz JE, Fernández-Nieves A, Barrero A, Márquez M, Loscertales IG. Fabrication of structured micro and nanofibers by coaxial electrospinning. ACTA ACUST UNITED AC 2008. [DOI: 10.1088/1742-6596/127/1/012008] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Márquez M, Serafin A, Fernández-Bellon H, Serrat S, Ferrer-Admetlla A, Bertranpetit J, Ferrer I, Pumarola M. Neuropathologic Findings in an Aged Albino Gorilla. Vet Pathol 2008; 45:531-7. [DOI: 10.1354/vp.45-4-531] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [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
Pallido-nigral spheroids associated with iron deposition have been observed in some aged clinically normal nonhuman primates. In humans, similar findings are observed in neurodegeneration with brain iron accumulation diseases, which, in some cases, show associated mutations in pantothenate kinase 2 gene (PANK2). Here we present an aged gorilla, 40 years old, suffering during the last 2 years of life from progressive tetraparesis, nystagmus, and dyskinesia of the arms, hands, and neck, with accompanying abnormal behavior. The postmortem neuropathologic examination revealed, in addition to aging-associated changes in the brain, numerous corpora amylacea in some brain areas, especially the substantia nigra, and large numbers of axonal spheroids associated with iron accumulation in the internal globus pallidus. Sequencing of the gorilla PANK2 gene failed to detect any mutation. The clinical, neuropathologic, and genetic findings in this gorilla point to an age-related pallido-nigral degeneration that presented PKAN-like neurologic deficits.
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Affiliation(s)
- M. Márquez
- Animal Tissue Bank of Catalunya, Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autonòma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | - A. Serafin
- Animal Tissue Bank of Catalunya, Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autonòma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
| | | | - S. Serrat
- Parc Zoològic de Barcelona (HF-B, SS), Barcelona, Spain
| | - A. Ferrer-Admetlla
- Unitat de Biologia Evolutiva, Universitat Pompeu Fabra, Barcelona, Spain
| | - J. Bertranpetit
- Unitat de Biologia Evolutiva, Universitat Pompeu Fabra, Barcelona, Spain
| | - I. Ferrer
- Institut Neuropatologia, Servei Anatomia Patològica, IDIBELL-Hospital Universitari de Bellvitge, carrer Feixa Llarga s/n, Hospitalet de Llobregat, Spain
| | - M. Pumarola
- Animal Tissue Bank of Catalunya, Departament de Medicina i Cirurgia Animals, Facultat de Veterinària, Universitat Autonòma de Barcelona, Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
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Schneider J, Egatz-Gómez A, Melle S, Lindsay S, Domínguez-García P, Rubio M, Márquez M, García AA. Motion of viscous drops on superhydrophobic surfaces due to magnetic gradients. Colloids Surf A Physicochem Eng Asp 2008. [DOI: 10.1016/j.colsurfa.2007.10.011] [Citation(s) in RCA: 23] [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] [Indexed: 10/22/2022]
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Macias J, Orihuela F, Rivero A, Viciana P, Márquez M, Portilla J, Ríos MJ, Muñoz L, Pasquau J, Castaño M, Abdel-Kader L, Pineda JA. Hepatic safety of tipranavir/ritonavir (TPV/r)-based antiretroviral therapy: effect of hepatitis virus co-infection and baseline liver fibrosis. J Int AIDS Soc 2008. [DOI: 10.1186/1758-2652-11-s1-p141] [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: 11/10/2022] Open
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Liétor-Santos JJ, Chávez-Páez M, Márquez M, Fernández-Nieves A, Medina-Noyola M. State diagram for the electrostatic adsorption of charged colloids on confining walls: simulation and theory. Phys Rev E Stat Nonlin Soft Matter Phys 2007; 76:050403. [PMID: 18233616 DOI: 10.1103/physreve.76.050403] [Citation(s) in RCA: 5] [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] [Received: 06/01/2007] [Indexed: 05/25/2023]
Abstract
We study the structure of charged colloidal suspensions under confinement and determine a state diagram for the occurrence of electrostatic adsorption onto the confining walls, an effect that results in the accumulation of particles on the bounding surfaces and that could be relevant in experiments. We use Monte Carlo simulations to quantify this structural transition and perform theoretical calculations based on integral equations. Overall, our results provide a guide for experimentalists dealing with charged colloidal systems to determine the relevance of this purely electrostatic effect.
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Affiliation(s)
- J J Liétor-Santos
- Group of Complex Fluids Physics, Department of Applied Physics, University of Almeria, Almeria 04120, Spain
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Fernández-Nieves A, Vitelli V, Utada AS, Link DR, Márquez M, Nelson DR, Weitz DA. Novel defect structures in nematic liquid crystal shells. Phys Rev Lett 2007; 99:157801. [PMID: 17995213 DOI: 10.1103/physrevlett.99.157801] [Citation(s) in RCA: 124] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2007] [Indexed: 05/25/2023]
Abstract
We use double-emulsion drops to experimentally investigate the defect structures of spherical shells of nematic liquid crystals. We uncover a rich scenario of coexisting defect structures dictated by the unavoidable finite thickness of even the thinnest shell and by the thickness variation around the sphere. These structures are characterized by a varying number of disclination lines and pairs of surface point defects on the inner and outer surfaces of the nematic shell. In the limit of very thick shells the defect structure ultimately merges with that of a bulk nematic liquid crystal drop.
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Affiliation(s)
- A Fernández-Nieves
- Department of Physics and HSEAS, Harvard University, Cambridge, Massachusetts 02138, USA
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Codony M, Alonso J, Almansa J, Vilagut G, Domingo A, Pinto-Meza A, Fernández A, Serrano-Blanco A, Márquez M, Haro JM. [Psychotropic medications use in Spain. Results of the ESEMeD-Spain study]. Actas Esp Psiquiatr 2007; 35 Suppl 2:29-36. [PMID: 18264867] [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] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
INTRODUCTION Psychotropic drugs are frequently used in the population and account for a big share of the Spanish health budget. This study aims to describe the patterns of use of psychotropic drugs in the Spanish general population and its relationship with mental health. METHODS A stratified, multistage, clustered area, probability sample design was used and 5,473 non-institutionalized individuals older than 18 were randomly selected among the Spanish population. They were administered the Spanish version of the World Health Organization- Composite International Diagnostic Interview (CIDI 3.0). Information on previous 12-months psychiatric symptoms and psychotropic drugs use was obtained. The proportion of individuals using psychotropic drugs was estimated and stratified according mental health diagnosis. Multivariate analyses were carried out in order to assess the influence of sociodemographic factors on use. RESULTS 16% of the sample had used some psychotropic drug. Benzodiacepines (11.4 %) and antidepressants (4.7%) were the most commonly used and the most common combination (1.8%). Women showed the highest use of any drug (odds ratio [OR]: 2.1; 95 confidence interval [CI]: 1.7-2.5), benzodiacepines (OR: 2.3; 95 CI: 1.9-2.8), antidepressants (OR: 2.2; 95 CI: 1.6-3.1) and antipsychotics (OR: 1.9; 95 CI: 1.2-3.0). The odds of use did increase with age, and was related with the presence and number of mental disorders. CONCLUSIONS Use of psychotropic drugs in the Spanish general population is high, although many individuals with mental disorders remain untreated. Gender and age showed an association with psychotropic drug use independent of mental health.
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Affiliation(s)
- M Codony
- Unidad de Investigación en Servicios Sanitarios, Instituto Municipal de Investigación Médica, Barcelona
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Palacios R, Santos J, González M, Ruiz J, Márquez M. Incidence and prevalence of the metabolic syndrome in a cohort of naive HIV-infected patients: prospective analysis at 48 weeks of highly active antiretroviral therapy. Int J STD AIDS 2007; 18:184-7. [PMID: 17362552 DOI: 10.1258/095646207780132415] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [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: 11/18/2022]
Abstract
We undertook a prospective study to assess the prevalence of the metabolic syndrome (MetS) in HIV patients at the start of highly active antiretroviral therapy (HAART), and at 48 weeks, and we also studied its relationship with high-sensitivity C-reactive protein (hs-CRP) in 60 HIV patients who maintained the same regimen during follow-up. The prevalence of MetS rose from 16.6% at baseline to 25% at 48 weeks (P=0.0001). During follow up, 7/50 patients developed MetS, leading an incidence of 14/100 patients/year. The MetS was associated with age, homosexuality, and lower hepatitis C virus prevalence; only age remained significant in the multivariate analysis (for each five-year increase: beta coefficient 4.26, 95% confidence interval, 3.80-4.75; P=0.0039). The hs CRP values were similar in patients with and without the MetS, and they did not increase at 48 weeks of HAART.
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Affiliation(s)
- R Palacios
- Infectious Diseases Unit, Internal Medicine Department, Hosp Virgen de la Victoria, Campus Teatinus s/n. 29010, Málaga, Spain
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Vidal E, Márquez M, Costa C, Tortosa R, Domènech A, Serafín A, Pumarola M. Molecular profiling and comparison of field transmissible spongiform encephalopathy cases diagnosed in Catalunya. Vet J 2007; 174:196-9. [PMID: 16690334 DOI: 10.1016/j.tvjl.2006.03.007] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Molecular profiling of the proteinase K resistant prion protein (PrP(res)) is a technique that has been applied to the characterisation of transmissible spongiform encephalopathy (TSE) strains. An interesting example of the application of this technique is the ability to differentiate, at the experimental level, between bovine spongiform encephalopathy (BSE) and scrapie infection in sheep, and to distinguish between classical and atypical BSE and scrapie cases. Twenty-six BSE cases and two scrapie cases from an active TSE surveillance program and diagnosed at the PRIOCAT, TSE Reference Laboratory (Centre de Recerca en Sanitat Animal, Universitat Autònoma de Barcelona, Catalunya, Spain) were examined by Western blotting. Molecular profiling was achieved by comparing the glycosylation profile, deglycosylated PrP molecular weight and 6H4/P4 monoclonal antibody binding ratio. The results obtained during the characterisation of these field cases indicated an absence of atypical BSE cases in Catalunya.
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Affiliation(s)
- E Vidal
- Laboratori PRIOCAT, Centre de Recerca en Sanitat Animal, Universitat Autònoma de Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
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Fernández-Nieves A, Link DR, Márquez M, Weitz DA. Topological changes in bipolar nematic droplets under flow. Phys Rev Lett 2007; 98:087801. [PMID: 17359128 DOI: 10.1103/physrevlett.98.087801] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2006] [Revised: 11/22/2006] [Indexed: 05/14/2023]
Abstract
Bipolar liquid crystal drops moving inside microchannels exhibit periodic director field transformations due to induced circulating flows inside them. These modifications are characterized by changes in the type of point surface disclinations; they periodically change from splay to bend disclinations, implying the drop changes between bipolar and escaped concentric configurations. Upon stopping the flow, this structure does not relax to the lower energy bipolar configuration; we argue this is due to drop flattening inside the channels.
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Affiliation(s)
- A Fernández-Nieves
- Department of Physics and HSEAS, Harvard University, Cambridge, MA 02138, USA
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Arizcorreta A, Márquez M, Fernández-Gutiérrez C, Guzmán EP, Brun F, Rodríguez-Iglesias M, Girón-González JA. T cell receptor excision circles (TRECs), CD4+, CD8+, and their CD45RO+, and CD45RA+, subpopulations in hepatitis C virus (HCV)-HIV-co-infected patients during treatment with interferon alpha plus ribavirin: analysis in a population on effective antiretroviral therapy. Clin Exp Immunol 2007; 146:270-7. [PMID: 17034579 PMCID: PMC1942067 DOI: 10.1111/j.1365-2249.2006.03220.x] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Interferon (IFN)-alpha induced CD4(+) T lymphopenia is a toxic effect of the treatment of chronic hepatitis C virus (HCV) in human immunodeficiency virus (HIV)-co-infected patients. To increase the knowledge about this secondary effect, we performed an analysis of the evolution of the T cell receptor excision circles (TRECs), CD4(+) and CD8(+) T cells and of their CD45RO(+) and CD45RA(+) subpopulations during the treatment of chronic hepatitis HCV with peginterferon alpha (pegIFN-alpha) + ribavirin. Twenty HCV/HIV-co-infected patients, with undetectable HIV load after highly active antiretroviral therapy (HAART), were treated with pegIFN-alpha + ribavirin. TRECs were determined using real-time polymerase chain reaction. CD4(+) and CD8(+) T cells and their CD45RO(+) and CD45RA(+) subpopulations were analysed by two-colour flow cytometry. Median baseline CD4(+) and CD8(+) T cells were 592 mm(3) and 874 mm(3), respectively. Median baseline CD45RO(+) subpopulation was 48% for CD4(+) T and 57% for CD8(+) T lymphocytes. A progressive decrease in both T cell populations, as well as of their CD45RO(+) and CD45RA(+) subpopulations, was detected, with a difference between the baseline and nadir levels approaching 50%. The evolution of T cell populations and TRECs was independent of the response to the treatment. T lymphocytes and their subpopulations returned to baseline levels at 24 weeks after the end of treatment, with the exception of the T CD4(+) CD45RA(+) subpopulation. The ratio of CD4(+) CD45RO(+)/CD4(+) CD45RA(+) increased from 0.89 (baseline) to 1.44 (24 weeks after the end of the therapy). TRECs/ml did not return to the basal values. In conclusion, a significant reduction of CD4(+) and CD8(+) T cells, and of their CD45RA(+) and CD45RO(+) subpopulations, in HIV/HCV co-infected patients treated with pegIFN-alpha was observed. Both subpopulations increased after the suppression of treatment, but the CD4(+) CD45RA subpopulation did not reach the basal levels as a consequence, at least in part, of a decrease in thymic production.
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Affiliation(s)
- A Arizcorreta
- Servicios de Medicina Interna, Hospital Universitario Puerta del Mar, Cádiz, Spain
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Marín AG, Loscertales IG, Márquez M, Barrero A. Simple and double emulsions via coaxial jet electrosprays. Phys Rev Lett 2007; 98:014502. [PMID: 17358479 DOI: 10.1103/physrevlett.98.014502] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2006] [Revised: 07/09/2006] [Indexed: 05/14/2023]
Abstract
We report for the first time the generation of electrified coaxial jets of micrometric diameter in liquid media. Scaling laws to predict the inner and outer diameter of the coaxial jet are given. We show some experiments illustrating the formation process of the coaxial jet, and demonstrate how this process can be used to yield either o/w (oil in water) or o/w/o (oil/water/oil) emulsions of micrometric size. Some interesting analogies with other hydrodynamic focusing processes are also pointed out.
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Affiliation(s)
- Alvaro G Marín
- Escuela Superior de Ingenieros, Universidad de Sevilla, C de los Descubrimientos s/n 41092, Sevilla, Spain.
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Liétor-Santos JJ, Fernández-Nieves A, Márquez M. Particle migration induced by confinement of colloidal suspensions along the gravitational direction. Phys Rev E Stat Nonlin Soft Matter Phys 2006; 74:051404. [PMID: 17279906 DOI: 10.1103/physreve.74.051404] [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] [Subscribe] [Scholar Register] [Received: 05/14/2006] [Indexed: 05/13/2023]
Abstract
We confine charged spheres in cells with the smallest dimension along the direction of gravity ĝ. The particles are density mismatched with the surrounding medium and sediment along ĝ with typical Péclet numbers of Pe approximately 10(-3). After a certain time, we find that the number of particles N increases near both upper and lower plates until a characteristic time tau is reached; above this time N plateaus. We attribute the observed phenomenology to collective particle motions driven by gravity and mediated by hydrodynamic interactions; these could yield formation of swirls made of particles with correlated velocities that could eventually drive the particles towards the upper plate. The characteristic time for these migrations scales with plate-to-plate separation Lz as tau approximately Lz1.2, exactly as the characteristic decay time of velocity fluctuations in sedimentation processes [S. Y. Tee, Phys. Rev. Lett. 89, 054501 (2002)], despite that in these experiments the smallest cell dimension is perpendicular to ĝ and 7<Pe<50. In the absence of gravitational field, the observed particle migrations disappear, emphasizing the key role played by gravity in these experiments.
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Affiliation(s)
- J J Liétor-Santos
- Group of Complex Fluids Physics, Department of Applied Physics, University of Almeria, Almeria 04120, Spain
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López Cascales JJ, Otero TF, Smith BD, González C, Márquez M. Model of an asymmetric DPPC/DPPS membrane: effect of asymmetry on the lipid properties. A molecular dynamics simulation study. J Phys Chem B 2006; 110:2358-63. [PMID: 16471825 DOI: 10.1021/jp0562680] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.6] [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: 11/30/2022]
Abstract
The study of asymmetric lipid bilayers is of a crucial importance due to the great number of biological process in which they are involved such as exocytosis, intracellular fusion processes, phospholipid-protein interactions, and signal transduction pathway. In addition, the loss of this asymmetry is a hallmark of the early stages of apoptosis. In this regard, a model of an asymmetric lipid bilayer composed of DPPC and DPPS was simulated by molecular dynamics simulation. Thus, the asymmetric membrane was modeled by 264 lipids, of which 48 corresponded to DPPS- randomly distributed in the same leaflet with 96 DPPC. In the other leaflet, 120 DPPC were placed without DPPS-. Due to the presence of a net charge of -1 for the DPPS- in physiological conditions, 48 Na+ were introduced into the system to balance the charge. To ascertain whether the presence of the DPPS- in only one of the two leaflets perturbs the properties of the DPPC in the other leaflet composed only of DPPC, different properties were studied, such as the atomic density of the different components across the membrane, the electrostatic potential across the membrane, the translational diffusion of DPPC and DPPS, the deuterium order parameters, lipid hydration, and lipid-lipid charge bridges. Thus, we obtained that certain properties such as the surface area lipid molecule, lipid head orientation, order parameter, translational diffusion coefficient, or lipid hydration of DPPC in the leaflet without DPPS remain unperturbed by the presence of DPPS in the other leaflet, compared with a DPPC bilayer. On the other hand, in the leaflet containing DPPS, some of the DPPC properties were strongly affected by the presence of DPPS such as the order parameter or electrostatic potential.
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Affiliation(s)
- J J López Cascales
- Universidad Politécnica de Cartagena, Centro de Electroquíca y Materiales Inteligentes (CEMI), Aulario II, Campus de Alfonso XIII, 30203 Cartagena, Murcia, Spain.
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Palacios R, Hidalgo A, Reina C, de la Torre M, Márquez M, Santos J. Effect of antiretroviral therapy on admissions of HIV-infected patients to an intensive care unit. HIV Med 2006; 7:193-6. [PMID: 16494634 DOI: 10.1111/j.1468-1293.2006.00353.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.9] [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: 11/28/2022]
Abstract
OBJECTIVES To analyse the characteristics of HIV-infected patients admitted to an Intensive Care Unit (ICU) and to compare them in the pre-highly active antiretroviral therapy (HAART) and HAART eras. METHODS All HIV-infected patients who were admitted to the ICU of our hospital between January 1990 and December 2003 were reviewed. Patients were divided into two groups based on whether they were admitted before or after the advent of HAART, the cut-off date being 31 December 1996. RESULTS Data were collected on 66 patients, 17 in the pre-HAART and 49 in the HAART era. The proportion of HIV-infected patients admitted to the ICU in our HIV-infected population increased after the introduction of HAART (3.8 vs 0.5%; P=0.001), and the largest diagnostic group was respiratory pathology in both periods. More than a third of patients were diagnosed with HIV infection during the ICU income, and only 31.2% were on antiretroviral therapy. The in-hospital mortality was 53.0%, and later survival was high. There were no significant differences between the pre-HAART and HAART eras. CONCLUSIONS Our results suggest that the characteristics of HIV-infected patients admitted to ICU have not changed: respiratory diseases are still the most frequent cause of admission, in-hospital mortality is high, and later survival rates are good.
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Affiliation(s)
- R Palacios
- Infectious Diseases Unit, Hospital Virgen de la Victoria, Malaga, Spain.
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Ochoa S, Usall J, Villalta-Gil V, Vilaplana M, Márquez M, Valdelomar M, Haro J. Influence of age at onset on social functioning in outpatients with schizophrenia. Eur J Psychiat 2006. [DOI: 10.4321/s0213-61632006000300003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Palacios R, Santos J, García A, Castells E, González M, Ruiz J, Márquez M. Impact of highly active antiretroviral therapy on blood pressure in HIV-infected patients. A prospective study in a cohort of naive patients. HIV Med 2006; 7:10-5. [PMID: 16313287 DOI: 10.1111/j.1468-1293.2005.00333.x] [Citation(s) in RCA: 101] [Impact Index Per Article: 5.6] [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: 11/30/2022]
Abstract
OBJECTIVES To assess the impact of highly active antiretroviral therapy (HAART) on the blood pressure (BP) of naive patients after 1 year of treatment. METHODS A prospective, observational study of 95 HIV-positive patients in our Unit starting HAART between January 2001 and October 2002 and maintaining the same regimen for 48 weeks of follow-up was carried out. Data on blood pressure (BP) and demographic, epidemiological, clinical, immunovirological and therapeutic characteristics related to HIV infection were collected prior to HAART and at week 48. High blood pressure (HBP) [systolic BP (SBP) > or =140 mm Hg and/or diastolic BP (DBP) > or =90 mm Hg] was defined according to international criteria. RESULTS Of the 95 patients, 78 were men, 44% had AIDS and 68% were smokers, and their mean age was 40 years. At week 48 the prevalence of HBP was 26% and SBP, DBP and pulse pressure (PP) increased (121.8 versus 116.6 mm Hg, P=0.0001; 76.3 versus 69.7 mm Hg, P=0.004; 46.9 versus 43.8 mm Hg, P=0.001, respectively). Univariate analysis showed that HBP was associated with older age, higher body mass index (BMI), higher baseline lipids, and higher baseline BP. A linear regression model adjusting for age and sex suggested a significant impact of older age, higher baseline SBP, higher baseline hypercholesterolaemia and lower baseline CD4-cell count on SBP increase. CONCLUSIONS Blood pressure increased after 48 weeks of HAART, leading to an important prevalence of hypertension. The increase in SBP depended on age and baseline lipid profile and immunological status. BP should be periodically measured and treated when necessary in HIV-infected patients on HAART.
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Affiliation(s)
- R Palacios
- Infectious Diseases Unit, Internal Medicine Department, Virgen de la Victoria Hospital, Malaga, Spain.
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46
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Vidal E, Márquez M, Tortosa R, Costa C, Serafín A, Pumarola M. Immunohistochemical approach to the pathogenesis of bovine spongiform encephalopathy in its early stages. J Virol Methods 2006; 134:15-29. [PMID: 16406559 DOI: 10.1016/j.jviromet.2005.11.010] [Citation(s) in RCA: 23] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2005] [Revised: 11/11/2005] [Accepted: 11/15/2005] [Indexed: 01/21/2023]
Abstract
An immunohistochemical and histochemical study was carried out on the brains of nine cases of BSE-diagnosed cattle as part of the surveillance plan in Catalonia, Spain. The animals had no clinical symptoms reported and were thus at early stages of the disease. The first part of the study consisted of a characterization of PrP(BSE) deposits throughout the encephalon. The behaviour of the different immuno-labelling patterns was analysed and tropism of some patterns towards certain brain areas was described. This tropism is principally directed to the brain stem region; however, an association of the stellate pattern was found with areas where PrP(BSE) is deposited less abundantly, such as the cerebral cortex. Secondly, distinct pathogenesis mechanisms that take place in the early stages of BSE, which would include these cases were investigated. This study describes the glial response to the presence of PrP(BSE) (using antibodies against astrocytic glial fibrillary acidic protein and lectin from Griffonia simplicifolia to identify microglia), the presence of mild oxidative stress phenomena (antibodies against metallothioneins I and II and against nitrated aminoacidic residues: nitrotyrosine), the apparent absence of apoptotic cellular death (cleaved caspase 3) and the preservation of synaptic proteins synaptophysin and small synaptosome-associated 25 kDa protein immuno-labelling. Finally, no alteration of the extra-cellular matrix was detected with the use of Wisteria floribunda agglutinin, a marker for perineuronal nets.
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Affiliation(s)
- E Vidal
- Priocat Laboratory, CReSA, Veterinary Faculty, Autonomous University of Barcelona, 08193 Bellaterra (Cerdanyola del Vallès), Barcelona, Spain
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Losada A, Robinson Shurgot G, Knight BG, Márquez M, Montorio I, Izal M, Ruiz MA. Cross-cultural study comparing the association of familism with burden and depressive symptoms in two samples of Hispanic dementia caregivers. Aging Ment Health 2006; 10:69-76. [PMID: 16338817 DOI: 10.1080/13607860500307647] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Familism has been pointed out as a key value in Hispanic culture that may or may not be associated with caregiver distress. Although groups included in the Hispanic identity have many common features, differences between Hispanic sub-groups in the relationship of familism with burden and depressive symptoms remain unexplored. The association of familism with burden and depressive symptomatology was examined in 48 Hispanic dementia caregivers from Los Angeles (CA, USA) and 60 from Madrid (Spain) through path analyses. Burden and depressive symptomatology were positively and significantly related in both samples. Familism was significantly correlated with lesser burden in the USA Hispanic caregiver sample, but with higher levels of depressive symptoms in the Spanish sample. Significant differences between Hispanic samples were found in the relationship between familism, burden, and depression, denoting the importance of specific cultural contexts influencing dementia caregiving in Hispanics.
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Affiliation(s)
- A Losada
- Universidad Rey Juan Carlos, Facultad de Ciencias de la Salud, Madrid, Spain.
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Santos J, Palacios R, González M, Ruiz J, Márquez M. Atherogenic lipid profile and cardiovascular risk factors in HIV-infected patients (Nétar Study). Int J STD AIDS 2005; 16:677-80. [PMID: 16212715 DOI: 10.1258/095646205774357398] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [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: 11/18/2022]
Abstract
We undertook a transverse study of 603 HIV outpatients to determine their atherogenic lipid profile (ALP) and cardiovascular risk (CVR) factors. CVR was estimated from the Framingham score. ALP was defined as a total cholesterol to high density lipoprotein (HDL)-cholesterol ratio > or =5 plus triglycerides > or =150 mg/dL and a CVR >10% at 10 years was considered high. The most frequent CVR factor was smoking. ALP was diagnosed in 26.9% and was related to sex (odds ratio [OR] 2.6; 95% confidence interval [CI], 1.3-5.0; P = 0.0047), protease inhibitor use (OR 3.8; 95% CI, 1.8-7.8; P = 0.0002) and sexual HIV risk (OR 2.4; 95% CI, 1.4-4.0; P = 0.0004). The mean 10-year CVR was 6.2%, was high in 20.4% and was related to sexual HIV-risk (OR 3.8; 95% CI, 2.1-6.8; P < 0.00001) and nadir cell differentiation factor (CD4) (OR 1.0; 95% CI, 1.0-1.003; P = 0.0026). Although the current CVR of our patients is not high, the contribution to the lipid profile of highly active antiretroviral therapy (HAART)-associated factors and the high prevalence of some risk factors may lead to an increased future CVR.
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Affiliation(s)
- J Santos
- Infectious Diseases Unit, Hospital Virgen de la Victoria, Campus Teatinus s/n, Málaga 29010, Spain.
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Pulido F, Ribera E, Moreno S, Muñoz A, Podzamczer D, del Pozo MA, Rivero A, Rodríguez F, Sanjoaquín I, Teira R, Viciana P, Villalonga C, Antela A, Carmena J, Ena J, Gonzalez E, Kindelán JM, Mallolas J, Márquez M, Martínez E. Once-daily antiretroviral therapy: Spanish Consensus Statement. J Antimicrob Chemother 2005; 56:808-18. [PMID: 16150862 DOI: 10.1093/jac/dki320] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [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: 11/13/2022] Open
Abstract
BACKGROUND Administration of antiretroviral therapy (ART) once daily is creating extraordinary interest among the members of the scientific community and also among those who receive the therapy. However, in clinical practice, some doubts remain about its use. OBJECTIVES This document examines the characteristics and possibilities of treatment administered once daily. METHODS Consensus of 248 Spanish experts in the field. RESULTS Once-daily dosing is considered an added value which could favour adherence and, therefore, efficacy, as well as the quality of life of certain patients, however, the objective of adequate adherence in the long term is often difficult to achieve regardless of the treatment used. In theory, any patient can receive once-daily therapy, although some patients could particularly benefit from it, e.g. those with unfavourable social or personal circumstances, including drug users, patients whose treatment must be supervised, patients receiving multiple medications, or those who need rescue therapy after multiple treatment failures. At present, it is possible to design once-daily ART using some of the combinations of drugs considered as first-choice in national and international recommendations for antiretroviral therapy, but the options are still limited. The marketing of new drugs with this characteristic could allow us to increase the number and types of patient who can benefit from once-daily regimens, including those patients who need rescue therapy. CONCLUSIONS Once-daily ART is a good alternative to regimens administered several times each day when a potent combination of active drugs is available.
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Affiliation(s)
- F Pulido
- Hospital Universitario 12 de Octubre, 28041 Madrid, Spain.
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Joensuu TK, Nilsson S, Holmberg AR, Márquez M, Tenhunen M, Saarto T, Joensuu H. Phase I trial on sms-D70 somatostatin analogue in advanced prostate and renal cell cancer. Ann N Y Acad Sci 2005; 1028:361-74. [PMID: 15650261 DOI: 10.1196/annals.1322.042] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 11/12/2022]
Abstract
Plasma concentrations and tolerability of a novel somatostatin analogue sms-D70 were studied in patients with metastatic hormone-resistant prostate cancer (HRPC) or metastatic renal cell cancer. To overcome the limitations of the octapeptides having affinity only to somatostatin receptor subtypes 2 and 5, HRPC expressing mainly somatostatin receptors 1 and 4, a somatostatin derivative based on the natural somatostatin having affinity to all five somatostatin receptor subtypes, was developed. The in vivo stability of this dextran-conjugated derivative, somatostatin-D70, was confirmed previously in animal studies, and the nanomolar "panaffinity" has been shown in in vitro receptor binding studies on cell lines transfected with the somatostatin receptor genes. Sms-D70 was given with subcutaneous injection once a week at dose levels of 5, 10, 20, 35, and 50 mg. For pharmacokinetic studies, sms-D70 was labeled with 131I. Fourteen patients were treated, of whom 10 had prostate and 4 renal cell cancer. The kinetic data revealed high stability with a long half-life in the blood. The drug was well tolerated, and no grade 4 (WHO) toxicity was observed. The maximal tolerated dose could not be established due to the lack of dose-limiting toxicities. Objective PSA responses were not recorded in these heavily treated patients, but subjective stabilization of pain was observed and urinary symptoms were alleviated in four patients. Three patients with metastatic HRPC received 5-10-mg intravenous injections of sms-D70 once weekly for 4-14 months on a compassionate use basis. In all cases, serum PSA values decreased more than 50% from the pretreatment level, but these results are difficult to interpret due to concomitant treatments given to these patients. In conclusion, sms-D70 was well tolerated in the treatment of metastatic prostate and renal cell cancer, but no responses were found in these heavily treated patients.
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Affiliation(s)
- T K Joensuu
- Department of Oncology, Helsinki University Central Hospital, Haartmaninkatu 4, Helsinki, Finland.
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