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Zamora A, Nougué M, Verdu L, Balzan E, Draia-Nicolau T, Benuzzi E, Pujol F, Baillif V, Lacazette E, Morfoisse F, Galitzky J, Bouloumié A, Dubourdeau M, Chaput B, Fazilleau N, Malloizel-Delaunay J, Bura-Rivière A, Prats AC, Garmy-Susini B. 15-Lipoxygenase promotes resolution of inflammation in lymphedema by controlling T reg cell function through IFN-β. Nat Commun 2024; 15:221. [PMID: 38177096 PMCID: PMC10766617 DOI: 10.1038/s41467-023-43554-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/14/2023] [Indexed: 01/06/2024] Open
Abstract
Lymphedema (LD) is characterized by the accumulation of interstitial fluid, lipids and inflammatory cell infiltrate in the limb. Here, we find that LD tissues from women who developed LD after breast cancer exhibit an inflamed gene expression profile. Lipidomic analysis reveals decrease in specialized pro-resolving mediators (SPM) generated by the 15-lipoxygenase (15-LO) in LD. In mice, the loss of SPM is associated with an increase in apoptotic regulatory T (Treg) cell number. In addition, the selective depletion of 15-LO in the lymphatic endothelium induces an aggravation of LD that can be rescued by Treg cell adoptive transfer or ALOX15-expressing lentivector injections. Mechanistically, exogenous injections of the pro-resolving cytokine IFN-β restores both 15-LO expression and Treg cell number in a mouse model of LD. These results provide evidence that lymphatic 15-LO may represent a therapeutic target for LD by serving as a mediator of Treg cell populations to resolve inflammation.
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Affiliation(s)
- A Zamora
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - M Nougué
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - L Verdu
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - E Balzan
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - T Draia-Nicolau
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - E Benuzzi
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - F Pujol
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | | | - E Lacazette
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - F Morfoisse
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - J Galitzky
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - A Bouloumié
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | | | - B Chaput
- Service de Chirurgie Plastique et des Brûlés, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - N Fazilleau
- Infinity, Toulouse Institute for Infectious and Inflammatory Diseases, Inserm UMR1291, CNRS UMR5051, University of Toulouse, 31024, Toulouse, France
| | - J Malloizel-Delaunay
- Service de Médecine Vasculaire, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - A Bura-Rivière
- Service de Médecine Vasculaire, Centre Hospitalier Universitaire de Toulouse, Toulouse, France
| | - A C Prats
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France
| | - B Garmy-Susini
- I2MC, Université de Toulouse, Inserm UMR 1297, UT3, Toulouse, France.
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2
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Brotons C, Camafort M, Del Mar Castellanos M, Clarà A, Cortés O, Diaz Rodriguez A, Elosua R, Gorostidi M, Hernández AM, Herranz M, Justo S, Lahoz C, Niño P, Pallarés-Carratalá V, Pedro-Botet J, Pérez Pérez A, Royo-Bordonada MA, Santamaria R, Tresserras R, Zamora A, Zuza I, Armario P. [Statement of the Spanish Interdisciplinary Vascular Prevention Committee on the updated European Guidelines on Cardiovascular Disease Prevention]. Hipertens Riesgo Vasc 2022; 39:69-78. [PMID: 35331672 DOI: 10.1016/j.hipert.2022.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 02/21/2022] [Indexed: 10/18/2022]
Abstract
Statement of the Spanish Interdisciplinary Vascular Prevention Committee on the updated European Guidelines on Cardiovascular Disease Prevention. We present the Spanish adaptation of the 2021 European Guidelines on Cardiovascular Disease (CVD) prevention in clinical practice. The current guidelines besides the individual approach greatly emphasize on the importance of population level approaches to the prevention of cardiovascular diseases. Systematic global CVD risk assessment is recommended in individuals with any major vascular risk factor. Regarding LDL-Cholesterol, blood pressure, and glycemic control in patients with diabetes mellitus, goals and targets remain as recommended in previous guidelines. However, it is proposed a new, stepwise approach (Step 1 and 2) to treatment intensification as a tool to help physicians and patients pursue these targets in a way that fits patient profile. After Step 1, considering proceeding to the intensified goals of Step 2 is mandatory, and this intensification will be based on 10-year CVD risk, lifetime CVD risk and treatment benefit, comorbidities and patient preferences. The updated SCORE algorithm-SCORE2, SCORE-OP- is recommended in these guidelines, which estimates an individual's 10-year risk of fatal and non-fatal CVD events (myocardial infarction, stroke) in healthy men and women aged 40-89 years. Another new and important recommendation is the use of different categories of risk according different age groups (< 50, 50-69 ≥ 70 years). Different flow charts of CVD risk and risk factor treatment in apparently healthy persons, in patients with established atherosclerotic CVD, and in diabetic patients are recommended. Patients with chronic kidney disease are considered high risk or very high-risk patients according to the levels of glomerular filtration rate and albumin-to-creatinine ratio. New lifestyle recommendations adapted to the ones published by the Spanish Ministry of Health as well as recommendations focused on the management of lipids, blood pressure, diabetes and chronic renal failure are included.
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Affiliation(s)
- C Brotons
- Sociedad Española de Medicina de Familia y Comunitaria-semFYC, Barcelona, España.
| | - M Camafort
- Sociedad Española de Medicina Interna, Barcelona, España
| | | | - A Clarà
- Sociedad Española de Angiología y Cirugía Vascular, Madrid, España
| | - O Cortés
- Asociación Española Pediatría de Atención Primaria, Madrid, España
| | - A Diaz Rodriguez
- Sociedad Española de Médicos de Atención Primaria-SEMERGEN, Madrid, España
| | - R Elosua
- Sociedad Española de Epidemiología, Barcelona, España
| | - M Gorostidi
- Sociedad Española de Nefrología, Santander, España
| | | | - M Herranz
- Federación de Asociaciones de Enfermería Comunitaria y Atención Primaria-FAECAP, Madrid, España
| | - S Justo
- Ministerio de Sanidad, Madrid, España
| | - C Lahoz
- Sociedad Española de Medicina Interna, Barcelona, España
| | - P Niño
- Sociedad Española de Medicina y Seguridad del Trabajo, España
| | | | - J Pedro-Botet
- Sociedad Española de Arteriosclerosis, Barcelona, España
| | | | | | - R Santamaria
- Sociedad Española de Nefrología, Santander, España
| | - R Tresserras
- Sociedad Española de Salud Pública y Administración Sanitaria-SESPAS, Barcelona, España
| | - A Zamora
- Sociedad Española de Arteriosclerosis, Barcelona, España
| | - I Zuza
- Ministerio de Sanidad, Madrid, España
| | - P Armario
- Sociedad Española-Liga Española para la Lucha contra la Hipertensión Arterial, Madrid, España
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Rabadán A, Zamora A, Díaz M, Bernabéu R. Consumer preferences associated with the protected geographical indication label in the marketing of lamb meat. Small Rumin Res 2021. [DOI: 10.1016/j.smallrumres.2021.106454] [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: 10/21/2022]
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4
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Goodwin A, Holubyeva A, Lai E, Zamora A, Schwartz B, Finamore P. 31 Pessary incarceration complicated by vesicovaginal fistula requiring ureteroneocystostomy: A video case presentation. Am J Obstet Gynecol 2021. [DOI: 10.1016/j.ajog.2021.04.175] [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: 11/16/2022]
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5
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Zamora A, Lad N, Szymanska MH. Vortex Dynamics in a Compact Kardar-Parisi-Zhang System. Phys Rev Lett 2020; 125:265701. [PMID: 33449743 DOI: 10.1103/physrevlett.125.265701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
We study the dynamics of vortices in a two-dimensional, nonequilibrium system, described by the compact Kardar-Parisi-Zhang equation, after a sudden quench across the critical region. Our exact numerical solution of the phase-ordering kinetics shows that the unique interplay between nonequilibrium and the variable degree of spatial anisotropy leads to different critical regimes. We provide an analytical expression for the vortex evolution, based on scaling arguments, which is in agreement with the numerical results, and confirms the form of the interaction potential between vortices in this system.
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Affiliation(s)
- A Zamora
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - N Lad
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - M H Szymanska
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Zamora A, Dagvadorj G, Comaron P, Carusotto I, Proukakis NP, Szymańska MH. Kibble-Zurek Mechanism in Driven Dissipative Systems Crossing a Nonequilibrium Phase Transition. Phys Rev Lett 2020; 125:095301. [PMID: 32915606 DOI: 10.1103/physrevlett.125.095301] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
The Kibble-Zurek mechanism constitutes one of the most fascinating and universal phenomena in the physics of critical systems. It describes the formation of domains and the spontaneous nucleation of topological defects when a system is driven across a phase transition exhibiting spontaneous symmetry breaking. While a characteristic dependence of the defect density on the speed at which the transition is crossed was observed in a vast range of equilibrium condensed matter systems, its extension to intrinsically driven dissipative systems is a matter of ongoing research. In this Letter, we numerically confirm the Kibble-Zurek mechanism in a paradigmatic family of driven dissipative quantum systems, namely exciton-polaritons in microcavities. Our findings show how the concepts of universality and critical dynamics extend to driven dissipative systems that do not conserve energy or particle number nor satisfy a detailed balance condition.
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Affiliation(s)
- A Zamora
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
| | - G Dagvadorj
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - P Comaron
- Joint Quantum Centre (JQC) Durham-Newcastle, School of Mathematics, Statistics and Physics, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
- Institute of Physics, Polish Academy of Sciences, Aleja Lotnikw 32/46, 02-668 Warsaw, Poland
| | - I Carusotto
- INO-CNR BEC Center and Università di Trento, via Sommarive 14, I-38123 Povo, Italy
| | - N P Proukakis
- Joint Quantum Centre (JQC) Durham-Newcastle, School of Mathematics, Statistics and Physics, Newcastle University, Newcastle upon Tyne NE1 7RU, United Kingdom
| | - M H Szymańska
- Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom
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Comaron P, Dagvadorj G, Zamora A, Carusotto I, Proukakis NP, Szymańska MH. Dynamical Critical Exponents in Driven-Dissipative Quantum Systems. Phys Rev Lett 2018; 121:095302. [PMID: 30230863 DOI: 10.1103/physrevlett.121.095302] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Indexed: 06/08/2023]
Abstract
We study the phase ordering of parametrically and incoherently driven microcavity polaritons after an infinitely rapid quench across the critical region. We confirm that the system, despite its driven-dissipative nature, satisfies the dynamical scaling hypothesis for both driving schemes by exhibiting self-similar patterns for the two-point correlator at late times of the phase ordering. We show that polaritons are characterized by the dynamical critical exponent z≈2 with topological defects playing a fundamental role in the dynamics, giving logarithmic corrections both to the power-law decay of the number of vortices and to the associated growth of the characteristic length scale.
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Affiliation(s)
- P Comaron
- Joint Quantum Centre (JQC) Durham-Newcastle, School of Mathematics, Statistics and Physics, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - G Dagvadorj
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
- Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - A Zamora
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
| | - I Carusotto
- INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, 38123 Povo, Italy
| | - N P Proukakis
- Joint Quantum Centre (JQC) Durham-Newcastle, School of Mathematics, Statistics and Physics, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom
| | - M H Szymańska
- Department of Physics and Astronomy, University College London, Gower Street, London, WC1E 6BT, United Kingdom
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Roman Degano I, Ramos R, Garcia-Gil M, Zamora A, Comas-Cufi M, Frances A, Marrugat J. P6258Higher cardiovascular disease incidence by increasing number of vascular territories affected and hypercholesterolemia level in population with existing cardiovascular disease. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- I Roman Degano
- Hospital del Mar, Municipal Institute for Medical Research (IMIM), Barcelona, Spain
| | - R Ramos
- Primary Care Research Institute (IDIAP), Barcelona, Spain
| | - M Garcia-Gil
- Primary Care Research Institute (IDIAP), Barcelona, Spain
| | - A Zamora
- University of Girona, Medical Sciences, Girona, Spain
| | - M Comas-Cufi
- Primary Care Research Institute (IDIAP), Barcelona, Spain
| | | | - J Marrugat
- CIBERCV, Health Institute Carlos III/Hospital del Mar Medical Research Institute (IMIM), Madrid/Barcelona, Spain
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Codina-Torrella I, Guamis B, Zamora A, Quevedo J, Trujillo A. Microbiological stabilization of tiger nuts’ milk beverage using ultra-high pressure homogenization. A preliminary study on microbial shelf-life extension. Food Microbiol 2018; 69:143-150. [DOI: 10.1016/j.fm.2017.08.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 07/20/2017] [Accepted: 08/11/2017] [Indexed: 11/25/2022]
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Martín-Campos J, Julve J, Plana N, Figueras R, Esteve E, Mauri M, Bueno M, Caixàs A, Llargués E, Vila À, Morales C, Soler C, Argimón J, Mayos J, Grau J, Zamora A, Matas L, Vila L, Masana L, Blanco-Vaca F. Low-density lipoprotein gene score to identify polygenic forms of familial hypercholesterolemia in a Spanish population. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Zamora A, Juan B, Trujillo AJ. Compositional and biochemical changes during cold storage of starter-free fresh cheeses made from ultra-high-pressure homogenised milk. Food Chem 2014; 176:433-40. [PMID: 25624253 DOI: 10.1016/j.foodchem.2014.12.070] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 10/21/2014] [Accepted: 12/17/2014] [Indexed: 11/27/2022]
Abstract
The aim of the present study was to evaluate the effects of using ultra-high pressure homogenisation (UHPH) on the composition and biochemistry of starter-free fresh cheeses and to monitor their evolution during cold storage as an alternative to conventional treatments applied in the production of fresh cheese such as conventional pasteurisation and homogenisation-pasteurisation. Although both homogenisation treatments increased cheese moisture content, cheeses from UHPH-treated milk showed lower moisture loss during storage than those from conventionally homogenised-pasteurised milk. Lipolysis and proteolysis levels in cheeses from UHPH-treated milk were lower than those from conventionally treated milk samples. Although, oxidation was found to be the major drawback, in general terms, high quality starter-free fresh cheeses were obtained from UHPH-treated milk.
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Affiliation(s)
- A Zamora
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, XiT, MALTA Consolider Group, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - B Juan
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, XiT, MALTA Consolider Group, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - A J Trujillo
- Centre Especial de Recerca Planta de Tecnologia dels Aliments (CERPTA), XaRTA, XiT, MALTA Consolider Group, Departament de Ciència Animal i dels Aliments, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain.
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Kotelnikova E, Bernardo-Faura M, Silberberg G, Kiani NA, Messinis D, Melas IN, Artigas L, Schwartz E, Mazo I, Masso M, Alexopoulos LG, Mas JM, Olsson T, Tegner J, Martin R, Zamora A, Paul F, Saez-Rodriguez J, Villoslada P. Signaling networks in MS: a systems-based approach to developing new pharmacological therapies. Mult Scler 2014; 21:138-46. [PMID: 25112814 DOI: 10.1177/1352458514543339] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The pathogenesis of multiple sclerosis (MS) involves alterations to multiple pathways and processes, which represent a significant challenge for developing more-effective therapies. Systems biology approaches that study pathway dysregulation should offer benefits by integrating molecular networks and dynamic models with current biological knowledge for understanding disease heterogeneity and response to therapy. In MS, abnormalities have been identified in several cytokine-signaling pathways, as well as those of other immune receptors. Among the downstream molecules implicated are Jak/Stat, NF-Kb, ERK1/3, p38 or Jun/Fos. Together, these data suggest that MS is likely to be associated with abnormalities in apoptosis/cell death, microglia activation, blood-brain barrier functioning, immune responses, cytokine production, and/or oxidative stress, although which pathways contribute to the cascade of damage and can be modulated remains an open question. While current MS drugs target some of these pathways, others remain untouched. Here, we propose a pragmatic systems analysis approach that involves the large-scale extraction of processes and pathways relevant to MS. These data serve as a scaffold on which computational modeling can be performed to identify disease subgroups based on the contribution of different processes. Such an analysis, targeting these relevant MS-signaling pathways, offers the opportunity to accelerate the development of novel individual or combination therapies.
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Affiliation(s)
- Ekaterina Kotelnikova
- Institute Biomedical Research August Pi Sunyer (IDIBAPS) - Hospital Clinic of Barcelona, Spain/Personal Biomedicine ZAO, and A. A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Russia
| | | | - Gilad Silberberg
- Unit of Computational Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Sweden
| | - Narsis A Kiani
- Unit of Computational Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Sweden
| | | | - Ioannis N Melas
- European Molecular Biology Laboratory, European Bioinformatics Institute, UK/ProtATonce Ltd, Greece/National Technical University of Athens, Greece
| | | | | | | | | | | | | | | | - Jesper Tegner
- Unit of Computational Medicine, Center for Molecular Medicine, Karolinska Institutet, Karolinska University Hospital, Sweden
| | | | | | - Friedemann Paul
- NeuroCure Clinical Research Center and Department of Neurology, Charité University Medicine Berlin, Germany
| | | | - Pablo Villoslada
- Institute Biomedical Research August Pi Sunyer (IDIBAPS) - Hospital Clinic of Barcelona, Spain/Personal Biomedicine ZAO, and A. A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Russia
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Plana N, Figueras R, Esteve E, Mauri M, Bueno M, Caixàs A, Llargués E, Vila A, Morales C, Soler C, Argimon J, Mayos J, Grau J, Zamora A, Matas L, Vila L, Blanco-Vaca F. Use of next generation sequencing for the diagnosis of familial hypercholesterolemia. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.131] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Background: Acanthamoeba is a rare cause of encephalitis yet is associated with high mortality. Treatment protocols vary greatly and generally include combination therapy across a wide spectrum of antiinfective classes. Case Description: A 63-year-old male who underwent renal transplantation presented 6 months after transplantation with depressed level of consciousness. Imaging of the head with computerized tomography showed an enhancing lesion suspicious for brain abscess. Biopsy of the lesion showed Acanthamoeba cysts. The patient was treated with sulfadiazine, fluconazole, flucytosine, azithromycin, and miltefosine but without success. We review recently published cases of Acanthamoeba encephalitis with an emphasis on treatment protocols and outcomes. Conclusion: Free-living protozoans such as Acanthamoeba are ubiquitous in the environment and should be suspected in immunosuppressed persons who present with central nervous system findings and brain abscess. Biopsy is critical to establish the etiology so that appropriate combination therapy can be deployed.
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Affiliation(s)
- A Zamora
- Department of Medicine, University of Mississippi Medical Center, MS USA
| | - H Henderson
- Department of Medicine, University of Mississippi Medical Center, MS USA
| | - E Swiatlo
- Department of Medicine, University of Mississippi Medical Center, MS USA ; G.V. (Sonny) Montgomery VA Medical Center, Jackson, MS USA
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Vadlamudi RK, Cortez VA, Zamora A, Martinez L, Tekmal RR. Abstract P2-05-01: Induction of PELP1 expression in mammary gland promotes tumorigenesis by enhancing CDK-CyclinD1 signaling. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-05-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Estrogen receptor coregulator over-expression promotes carcinogenesis and/or progression of endocrine related-cancers where steroid hormones are powerful mitogenic agents. Recent studies in our laboratory as well as others demonstrated that PELP1 is a proto-oncogene and a prognostic indicator of decreased survival in breast cancer patients. Recent studies indicated that PELP1 is needed for optimal epigenetic modifications at ER target genes and PELP1 interactions with KDM1 play a key role in PELP1 mediated oncogenic functions. However, the in vivo significance of PELP1 deregulation during initiation and progression of breast cancer remains unknown. The objective of this study is determine the molecular mechanisms by which PELP1 regulate breast cancer progression in vivo.
Method: To determine the significance of PELP1 over-expression in mammary tumorigenesis, we used an inducible, tissue-specific PELP1 expressing transgenic mouse. Mammary epithelial-specific expression of PELP1 was validated by immunohistochemistry and Western blot analysis. PELP1-mediated morphological and histological changes were analyzed by examining carmine-stained whole mounts and H&E-stained paraffin embedded mammary glands sections. Differential expression of breast cancer-focused genes between wild type and PELP1 transgenic mammary glands was determined using real-time RT2 Profiler PCR array. Proliferation was analyzed using Ki-67 immuno staining. RTqPCR, Western and IHC analysis were used to confirm the changes in the expression of PELP1 regulated genes.
Results: We observed an increase in proliferation, extensive side branching and precocious differentiation in PELP1 expressing mammary gland compared to controls. Aged MMTVrtTA-TetOPELP1 bitransgenic mice revealed hyperplasia and preneoplastic changes as early as 12 weeks and mammary tumors occurred at a latency of 10.5 months. Mechanistic studies using tissues from control and PELP1 transgenic mice revealed that PELP1 deregulation modulates expression of a number of known ER target genes involved in cellular proliferation (such as cyclin D1, CDKs) and morphogenesis (EGFR, MMPs) and such changes facilitated altered mammary gland morphogenesis and tumor progression. Western and IHC analysis of mammary glands confirmed upregulation of CDK and Cyclin D1 protein levels in PELP1 Tg mice. Further, PELP1 is hyperphosphorylated at CDK phosphorylation site in PELP1 (Ser 991), suggesting an autocrine loop involving CDk-CyclinD1-PELP1 axis in promoting mammary tumorigenesis. Treatment of PELP1 Tg mice with pargyline, an inhibitor of KDM1 for four months significantly reduced PELP1 driven hyperplasia. Mechanistic studies revealed that pargyline treatment reduced cyclin D1 expression levels and substantially reduced CDK driven PELP1 phosphorylation.
Conclusions: PELP1 deregulation modulates expression of a number of known ER target genes and cancer promoting genes. PELP1 mediated epigenetic changes via KDM1 play role in PELP1 oncogenic functions in vivo. Collectively, these results support that PELP1 deregulation has potential to promote breast tumorigenesis in vivo.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-05-01.
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Affiliation(s)
| | - VA Cortez
- UT Health Sciences Center, San Antonio, TX
| | - A Zamora
- UT Health Sciences Center, San Antonio, TX
| | - L Martinez
- UT Health Sciences Center, San Antonio, TX
| | - RR Tekmal
- UT Health Sciences Center, San Antonio, TX
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Zamora A, Fernández de Bobadilla F, Carrion C, Vázquez G, Paluzie G, Elosua R, Vilaseca M, Martín-Urda A, Rivera A, Plana N, Masana L. Pilot study to validate a computer-based clinical decision support system for dyslipidemia treatment (HTE-DLP). Atherosclerosis 2013; 231:401-4. [DOI: 10.1016/j.atherosclerosis.2013.09.029] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 09/27/2013] [Accepted: 09/28/2013] [Indexed: 11/24/2022]
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18
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Vazquez-Oliva G, Zamora A, Vilaseca M, Paluzie G. ¿La comorbilidad influye en la decisión de un abordaje intervencionista de pacientes ingresados con síndrome coronario agudo sin elevación del segmento ST en un hospital comarcal? Rev Clin Esp 2013. [DOI: 10.1016/j.rce.2012.11.017] [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: 11/28/2022]
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19
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Amour S, Zamora A, Bergeret A, Vanhems P. Étude de la couverture vaccinale du personnel de l’université Claude-Bernard Lyon-1 : résultats de l’étude COVAPE. ARCH MAL PROF ENVIRO 2012. [DOI: 10.1016/j.admp.2012.09.043] [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: 11/28/2022]
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20
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Zamora A, Ferragut V, Guamis B, Trujillo A. Changes in the surface protein of the fat globules during ultra-high pressure homogenisation and conventional treatments of milk. Food Hydrocoll 2012. [DOI: 10.1016/j.foodhyd.2012.02.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [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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21
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Zamora A, Trujillo A, Armaforte E, Waldron D, Kelly A. Effect of fat content and homogenization under conventional or ultra-high-pressure conditions on interactions between proteins in rennet curds. J Dairy Sci 2012; 95:4796-4803. [DOI: 10.3168/jds.2012-5351] [Citation(s) in RCA: 25] [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] [Received: 01/16/2012] [Accepted: 04/25/2012] [Indexed: 11/19/2022]
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22
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Amour S, Payet C, Zamora A, Bergeret A, Vanhems P. L’observatoire de la santé des personnels de l’université Lyon 1 (OSPEL) : une démarche originale. ARCH MAL PROF ENVIRO 2012. [DOI: 10.1016/j.admp.2012.03.428] [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: 11/29/2022]
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23
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Zamora A, Ferragut V, Juan B, Guamis B, Trujillo A. Effect of ultra-high pressure homogenisation of milk on the texture and water-typology of a starter-free fresh cheese. INNOV FOOD SCI EMERG 2011. [DOI: 10.1016/j.ifset.2011.06.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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Aranda A, Madrid J, Zamora A, Sánchez-Vázquez S, Sánchez-Vázquez F. Synchronizing Effect of Photoperiod on the Dual Phasing of Demand-Feeding Rhythms in Sea Bass. BIOL RHYTHM RES 2010. [DOI: 10.1076/brhm.30.4.392.1409] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Abstract
OBJECTIVE To describe the different falls typology and to investigate whether different falls profiles and faller profiles could be identified among a cohort of community-dwelling women aged 75 years and older. DESIGN Prospective cohort study. PARTICIPANTS Women aged 75 years and older were enrolled in five French centers after a random selection from electoral lists and included in the EPIDOS study. MEASUREMENTS During a 4 year follow-up, women were contacted by telephone every 4 months to investigate the occurrence of falls. To minimize the memory bias, the specific questionnaire on falls was completed only if the fall took place in the week preceding the contact. A multiple correspondence analysis followed by clustering was carried out to identify the typology of falls. RESULTS 727 women described at least one fall. A full description of 662 falls was obtained during the follow-up period. In the multiple correspondence analysis the main discriminant item was outside versus inside falls. Moreover, four clusters were showed: outside falls linked to lack of attention (28% of women), outside falls related to exogenous/environmental factors (16%), inside falls associated with frailty (44%) and in height falls (11%). We also found that each type of falls was correlated with particular health or functional status (i.e.;dependence, motion difficulty, weakness, use of walking aid, ...). CONCLUSION From frailty to hyperactivity there are different falls and fallers profiles. Assessing such fall profiles could be helpful to develop new dedicated fall prevention programs in the elderly.
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Affiliation(s)
- E Decullier
- Hospices Civils de Lyon, Pôle IMER, Lyon, F-69003, France
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Lopez-Tomas LA, Ordoñez JA, Mediavilla C, Rodriguez-Marin JL, Sarmiento P, Zamora A, Garcia de Fernando G. Effect of growth temperature and pH on the aminopeptidase activity of Pseudomonas putida, P. fluorescens and Flavobacterium odoratum; the 4-nitroaniline test is reliable. Folia Microbiol (Praha) 2008; 53:423-6. [DOI: 10.1007/s12223-008-0064-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2008] [Revised: 04/17/2008] [Indexed: 12/01/2022]
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28
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Jaramillo D, Zamora A, Guamis B, Rodríguez M, Trujillo A. Cheesemaking aptitude of two Spanish dairy ewe breeds: Changes during lactation and relationship between physico-chemical and technological properties. Small Rumin Res 2008. [DOI: 10.1016/j.smallrumres.2008.04.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [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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Zamora A, Vazquez G, Vilaseca M, Crespo M, Gibert A, Paluzie G, Fernandez-Real J, Massa J, Caballe I, Cuenca R, Fernandez V, Bron D, Coralli S. PREDICTORS OF BLOOD PRESSURE NON-DIPPING PATTERN IN ACUTE CORONARY SYNDROME. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70614-7] [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: 10/22/2022]
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Vilaseca M, Vazquez G, Zamora A, Crespo M, Gibert A, Cuenca R, Paluzie G, Massa J, Caballe I, Fernandez V, Coralli S, Bron D, DelMolino F, Costa N, Massa R, Campoamor C. CORRELATION BETWEEN ACCESS TO INVASIVE CORONARY APPROACH AND COMORBIDITY STATUS IN PATIENTS ADMITTED WITH ACUTE CORONARY SYNDROME. ATHEROSCLEROSIS SUPP 2008. [DOI: 10.1016/s1567-5688(08)70888-2] [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: 10/22/2022]
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31
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Chambrier C, Zamora A, Lauverjat M, Gelas P, Boncompain-Gérard M. P059 Paramètres influençant la qualité de vie des patients en nutrition parentérale à domicile. NUTR CLIN METAB 2007. [DOI: 10.1016/s0985-0562(07)78861-1] [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: 10/22/2022]
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32
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Lauverjat M, Zamora A, Gelas P, Boncompain-Gérard M, Chambrier C. P066 Hyperferritinémie témoin d’une surcharge ferrique hépatique chez les patients en nutrition parentérale de longue durée pour insuffisance intestinale. NUTR CLIN METAB 2007. [DOI: 10.1016/s0985-0562(07)78868-4] [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: 11/16/2022]
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33
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Escárcega RO, Fuentes-Alexandro S, García-Carrasco M, Gatica A, Zamora A. The transcription factor nuclear factor-kappa B and cancer. Clin Oncol (R Coll Radiol) 2007; 19:154-61. [PMID: 17355113 DOI: 10.1016/j.clon.2006.11.013] [Citation(s) in RCA: 175] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Since the discovery of nuclear factor-kappa B (NF-kappaB) in 1986, many studies have been conducted showing the link between the NF-kappaB signalling pathway and control of the inflammatory response. Today it is well known that control of the inflammatory response and apoptosis is closely related to the activation of NF-kappaB. Three NF-kappaB activation pathways exist. The first (the classical pathway) is normally triggered in response to microbial and viral infections or exposure to pro-inflammatory cytokines that activate the tripartite IKK complex, leading to phosphorylation-induced IkappaB degradation and depends mainly on IKKbeta activity. The second (the alternative pathway), leads to selective activation of p52:RelB dimers by inducing the processing of the NF-kappaB2/p100 precursor protein, which mostly occurs as a heterodimer with RelB in the cytoplasm. This pathway is triggered by certain members of the tumour necrosis factor cytokine family, through selective activation of IKKalpha homodimers by the upstream kinase NIK. The third pathway is named CK2 and is IKK independent. NF-kappaB acts through the transcription of anti-apoptotic proteins, leading to increased proliferation of cells and tumour growth. It is also known that some drugs act directly in the inhibition of NF-kappaB, thus producing regulation of apoptosis; some examples are aspirin and corticosteroids. Here we review the role of NF-kappaB in the control of apoptosis, its link to oncogenesis, the evidence of several studies that show that NF-kappaB activation is closely related to different cancers, and finally the potential target of NF-kappaB as cancer therapy.
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Affiliation(s)
- R O Escárcega
- Surgical Oncology Unit, Hospital de Especialidades, CMN Manuel Avila Camacho, Instituto Mexicano del Seguro Social, Puebla, Mexico.
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Abstract
The effects of single- or 2-stage ultra-high pressure homogenization (UHPH; 100 to 330 MPa) at an inlet temperature of 30 degrees C on the cheese-making properties of bovine milk were investigated. Effects were compared with those from raw, heat-pasteurized (72 degrees C for 15 s), and conventional homogenized-pasteurized (15 + 3 MPa, 72 degrees C for 15 s) treatments. Rennet coagulation time, rate of curd firming, curd firmness, wet yield, and moisture content of curds were assessed. Results of particle size and distribution of milk, whey composition, and gel microstructure observed by confocal laser scanning microscopy were analyzed to understand the effect of UHPH. Single-stage UHPH at 200 and 300 MPa enhanced rennet coagulation properties. However, these properties were negatively affected by the use of the UHPH secondary stage. Increasing the pressure led to higher yields and moisture content of curds. The improvement in the cheese-making properties of milk by UHPH could be explained by changes to the protein-fat structures due to the combined effect of heat and homogenization.
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Affiliation(s)
- A Zamora
- Centre Especial de Recerca Planta Tecnologia dels Aliments (CERPTA), Departament de Ciència Animal i dels Aliments, Facultat de Veterinària, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
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Abstract
Estrada-Parra, Sergio (Escuela Nacional de Ciencias Biológicas, México, D.F., México), Abel Zamora, and L. F. Bojalil. Immunochemistry of the group-specific polysaccharide of Nocardia brasiliensis. J. Bacteriol. 90:571-574. 1965.-The group-specific polysaccharide of Nocardia brasiliensis was further purified, yielding an amorphous white material with the following characteristics: [alpha](D) (20) = + 48; nitrogen, 0.5%; phosphorus, 0.1%; and ash as sodium, 0.8%. The polymer is made of d-arabinose and d-galactose in a molar ratio of 3:1, and no other sugars were detected. Mild hydrolysis liberates mainly arabinose. The polysaccharide consumes 3.46 mumoles of periodate per mg of polymer in 15 days at 4 C (this value remains constant after 4 more days). Oxidation results in destruction of two of the arabinose, with the formation of two glycerols after borohydride reduction and hydrolysis. The polysaccharide oxidized by periodate and reduced under mild acid hydrolysis at 20 C yields glycerol and a polymer formed by galactose and arabinose (in a ratio of 1:1) which is resistant to a second oxidation. Therefore, the polysaccharide is probably formed by a main chain of glactose linked 1,3 and arabinose linked 1,2 or 1,3 or both, and nonreducing side chains of arabofuranose residues. The intact polysaccharide cross-reacts with sera from patients with active tuberculosis, and this, as well as the homologous reaction, is abolished by oxidation with periodate.
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Affiliation(s)
- S Estrada-Parra
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, México, D.F., México
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36
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Vázquez-Oliva G, Fernández-Real JM, Zamora A, Vilaseca M, Badimón L. Lowering of blood pressure leads to decreased circulating interleukin-6 in hypertensive subjects. J Hum Hypertens 2005; 19:457-62. [PMID: 15759024 DOI: 10.1038/sj.jhh.1001845] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [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: 12/20/2022]
Abstract
Interleukin-6 (IL-6), the major proinflammatory cytokine, has been described to be associated with the hypertensive and atherosclerotic states. We aimed to explore whether the concentration of circulating IL-6 and adhesion molecules could be modified by decreasing blood pressure in hypertensive subjects. A total of 30 subjects (18 men), aged 34-48 years, were enrolled in this study, 17 hypertensive never-treated patients (HTA) and 13 normotensive subjects (C). HTA subjects were treated with irbesartan, 150-300 mg/day for 3 months, and serum IL-6, vascular cell adhesion molecule-1, intercellular adhesion molecule-1, sP-selectin, sE-selectin and monocyte chemoattractant protein-1 were measured at 0 and 12 weeks. The two study groups were similar in age, body mass index (BMI) and gender. At baseline, circulating IL-6 levels, but not adhesion molecules, were significantly associated with systolic blood pressure (r=0.41; P=0.03) and BMI (r=0.53; P=0.005). Systolic and diastolic blood pressure decreased significantly (P<0.01) in parallel to serum IL-6 levels (from 3.72+/-0.82 to 3.23+/-0.19 pg/ml, P=0.02) reaching a similar concentration to normotensive patients (3.33+/-0.3 pg/ml) after treatment with irbesartan. No significant changes were observed in any other of the tested parameters. In conclusion, the treatment of high blood pressure lowers circulating IL-6 in young hypertensive patients.
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Affiliation(s)
- G Vázquez-Oliva
- Cardiology Unit, Hospital de Blanes, Corporació de Salut del Maresme i La Selva, Girona, Spain.
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37
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Tomás M, Manresa J, Zamora A, Fitó M, Covas M, Alcántara M, Latorre G, Sentí M, Marrugat J. T04-P-043 Interrelationship of classical and emergent risk factors with genetic variants relevant to coronary heart disease. ATHEROSCLEROSIS SUPP 2005. [DOI: 10.1016/s1567-5688(05)80634-8] [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: 11/24/2022]
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38
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Llanes R, Zamora A, Nápoles M, Guevara A, Sosa J, Guzmán D, Llop A, Lantero MI. Antimicrobial resistance of Neisseria gonorrhoeae in the municipality of Morón, Cuba: emergence of isolates with intermediate resistance to fluoroquinolones. J Antimicrob Chemother 2003; 51:191-2. [PMID: 12493815 DOI: 10.1093/jac/dkg043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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40
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Matejuk A, Adlard K, Zamora A, Silverman M, Vandenbark AA, Offner H. 17 beta-estradiol inhibits cytokine, chemokine, and chemokine receptor mRNA expression in the central nervous system of female mice with experimental autoimmune encephalomyelitis. J Neurosci Res 2001; 65:529-42. [PMID: 11550221 DOI: 10.1002/jnr.1183] [Citation(s) in RCA: 93] [Impact Index Per Article: 4.0] [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] [Indexed: 11/09/2022]
Abstract
Cytokines and chemokines govern leukocyte trafficking, thus regulating inflammatory responses. In this study, the anti-inflammatory effects of low dose 17 beta-estradiol were evaluated on chemokine, chemokine receptor, and cytokine expression in the spinal cords (SC) of BV8S2 transgenic female mice during acute and recovery phases of experimental autoimmune encephalomyelitis (EAE). In EAE protected mice, 17 beta-estradiol strongly inhibited mRNA expression of the chemokines RANTES, MIP-1 alpha, MIP-2, IP-10, and MCP-1, and of the chemokine receptors CCR1, CCR2 and CCR5 at both time points. Conversely, ovariectomy, which abrogated basal 17 beta-estradiol levels and increased the severity of EAE, enhanced the expression of MIP-1 alpha and MIP-2 that were over-expressed by inflammatory mononuclear cells in SC. 17 beta-estradiol inhibited expression of LT-beta, TNF-alpha, and IFN-gamma in SC, but had no effect on IL-4 or IL-10, indicating reduced inflammation but no deviation toward a Th2 response. Interestingly, elevated expression of CCR1 and CCR5 by lymph node cells was also inhibited in 17 beta-estradiol treated mice with EAE. Low doses of 17 beta-estradiol added in vitro to lymphocyte cultures had no direct effect on the activation of MBP-Ac1-11 specific T cells, and only at high doses diminished production of IFN-gamma, but not IL-12 or IL-10. These results suggest that the beneficial effects of 17 beta-estradiol are mediated in part by strong inhibition of recruited inflammatory cells, resulting in reduced production of inflammatory chemokines and cytokines in CNS, with modest effects on encephalitogenic T cells that seem to be relatively 17 beta-estradiol insensitive.
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MESH Headings
- Animals
- Cell Movement/immunology
- Cells, Cultured/cytology
- Cells, Cultured/drug effects
- Cells, Cultured/immunology
- Chemokine CCL4
- Chemokine CXCL2
- Chemokines/genetics
- Cytokines/genetics
- Down-Regulation/drug effects
- Down-Regulation/immunology
- Encephalomyelitis, Autoimmune, Experimental/drug therapy
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/physiopathology
- Estradiol/pharmacology
- Female
- Leukocytes, Mononuclear/drug effects
- Leukocytes, Mononuclear/immunology
- Lymph Nodes/cytology
- Lymph Nodes/drug effects
- Lymph Nodes/immunology
- Macrophage Inflammatory Proteins/genetics
- Mice
- Mice, Transgenic
- Ovariectomy
- RNA, Messenger/drug effects
- RNA, Messenger/metabolism
- Receptors, CCR1
- Receptors, CCR5/drug effects
- Receptors, CCR5/immunology
- Receptors, CCR5/metabolism
- Receptors, Chemokine/drug effects
- Receptors, Chemokine/genetics
- Receptors, Chemokine/immunology
- Receptors, Chemokine/metabolism
- Spinal Cord/drug effects
- Spinal Cord/immunology
- Spinal Cord/metabolism
- T-Lymphocytes/cytology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- Th1 Cells/cytology
- Th1 Cells/drug effects
- Th1 Cells/immunology
- Th2 Cells/cytology
- Th2 Cells/drug effects
- Th2 Cells/immunology
- Treatment Outcome
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Affiliation(s)
- A Matejuk
- Department of Neurology, Oregon Health Sciences University, Portland, Oregon, USA
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Ito A, Bebo BF, Matejuk A, Zamora A, Silverman M, Fyfe-Johnson A, Offner H. Estrogen treatment down-regulates TNF-alpha production and reduces the severity of experimental autoimmune encephalomyelitis in cytokine knockout mice. J Immunol 2001; 167:542-52. [PMID: 11418693 DOI: 10.4049/jimmunol.167.1.542] [Citation(s) in RCA: 203] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
A shift toward Th2 cytokine production has been demonstrated during pregnancy and high dose estrogen therapy and is thought to be the primary mechanism by which estrogen suppresses the development of experimental autoimmune encephalomyelitis. However, low dose estrogen treatment is equally protective in the absence of a significant shift in cytokine production. In this study cytokine-deficient mice were treated with estrogen to determine whether a shift in Th2 cytokine production was required for the protective effects of hormone therapy. Estrogen effectively suppressed the development of experimental autoimmune encephalomyelitis in IL-4 and IL-10 knockout mice and in wild type littermate mice with a similar potency of protection. Significant disease suppression was also seen in IFN-gamma-deficient mice. The decrease in disease severity was accompanied by a concomitant reduction in the number of proinflammatory cytokine- and chemokine-producing cells in the CNS. Although there was no apparent increase in compensatory Th2 cytokine production in cytokine-deficient mice, there was a profound decrease in the frequency of TNF-alpha-producing cells in the CNS and the periphery. Therefore, we propose that one mechanism by which estrogen protects females from the development of cell-mediated autoimmunity is through a hormone-dependent regulation of TNF-alpha production.
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MESH Headings
- Amino Acid Sequence
- Animals
- Cell Adhesion Molecules/biosynthesis
- Chemokines/antagonists & inhibitors
- Chemokines/biosynthesis
- Chemokines/genetics
- Cytokines/antagonists & inhibitors
- Cytokines/biosynthesis
- Cytokines/deficiency
- Cytokines/genetics
- Down-Regulation/genetics
- Down-Regulation/immunology
- Drug Implants
- Encephalomyelitis, Autoimmune, Experimental/immunology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/prevention & control
- Estradiol/administration & dosage
- Estradiol/therapeutic use
- Female
- Interferon-gamma/deficiency
- Interferon-gamma/genetics
- Interleukin-10/deficiency
- Interleukin-10/genetics
- Interleukin-4/deficiency
- Interleukin-4/genetics
- Lymphocyte Activation/drug effects
- Lymphocyte Activation/genetics
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Molecular Sequence Data
- RNA, Messenger/biosynthesis
- Receptors, Chemokine/antagonists & inhibitors
- Receptors, Chemokine/biosynthesis
- Receptors, Chemokine/genetics
- Spinal Cord/drug effects
- Spinal Cord/immunology
- Spinal Cord/pathology
- T-Lymphocytes/drug effects
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- Tumor Necrosis Factor-alpha/antagonists & inhibitors
- Tumor Necrosis Factor-alpha/biosynthesis
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- A Ito
- Department of Neurology and Neurological Sciences Institute, Oregon Health Sciences University, Portland, OR 97201, USA
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Abstract
The authors studied the MRI findings of three patients with Möbius syndrome. Möbius syndrome is a rare congenital disorder characterized by complete or partial facial diplegia accompanied by other cranial nerve palsies. MRI demonstrated brainstem hypoplasia with straightening of the fourth ventricle floor, indicating an absence of the facial colliculus. These MRI features suggest the diagnosis of Möbius syndrome and correlate with the clinical and neurophysiologic findings.
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Affiliation(s)
- S Pedraza
- Radiology Department, Hospital Vall d'Hebron, Barcelona, Spain.
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Auguet T, Lorenzo A, Colomer E, Zamora A, García C, Martínez-Vea A, Richart C, Oliver JA. Recovery of minimal change nephrotic syndrome and acute renal failure in a patient withRenal cell carcinoma. Am J Nephrol 2000; 18:433-5. [PMID: 9730570 DOI: 10.1159/000013365] [Citation(s) in RCA: 14] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
We describe a 78-year-old patient with nephrotic syndrome due to minimal-change glomerulopathy, associated with a renal adenocarcinoma. Oliguric acute renal failure requiring hemodialysis was also observed. Surgical removal of the tumor and corticosteroid therapy resulted in resolution of the nephrotic state and improvement of the renal function. Nephrotic syndrome is an unusual complication of renal cell carcinomas, and the association of minimal-change glomerulopathy (MCG) and solid tumors is particularly uncommon. In spite of this, MCG should be considered in the nephropathies causing nephrotic syndrome and acute renal failure in patients with renal malignancies.
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Affiliation(s)
- T Auguet
- Department of Internal Medicine, Hospital Universitari Joan XXIII, Rovira i Virgili University, Tarragona, Spain
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Perez Guzzi JI, Folabella A, Miliwebsky E, Rivas M, Fernandez Pascua C, Gomez D, Zamora A, Zotta C, Cordoba M. [Isolation of Escherichia coli O157:H7 in storm drains in the city of Mar del Plata with bacterial contamination of fecal origin]. Rev Argent Microbiol 2000; 32:161-4. [PMID: 11008710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
Abstract
The present study was focused on the isolation and characterization of Escherichia coli, particularly the serotype O157:H7, from five combined-sewer outflows waters, which drain into the beaches of Mar del Plata. Seventeen hemolytic uremic syndrome cases were reported in Mar del Plata during the sampling period (May 1995-April 1996) in children between 9 month- and 5 year-old, and 3 deaths were recorded. E. coli identification was carried out by biochemical tests. E. coli was detected in 75% of the samples and a total of 98 strains were selected, with 11 sorbol non-fermenting strains. The strains belonged to the O1, O6, O44, O86a, O119 and O168 serogroups. As none of the known virulence factors was detected, strains could not be grouped within any of the diarrheagenic E. coli categories. None of the E. coli strains belonged to the O157:H7 serotype, but E. coli isolation showed fecal contamination in the combined-sewer outflows. Since their waters drain into beaches for recreational use, it is necessary to emphasize the detection of E. coli that would cause severe human illness. Bacterial pollution in combined-sewer outflows draining into Mar del Plata coasts might represent a high risk for human health.
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Affiliation(s)
- J I Perez Guzzi
- Laboratorio de Microbiología, Faculted de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Argentina.
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Zamora A, Gutierrez C, Broch M, Aguilar C, Vendrell J, Molina J, Veloso S, Mirón M, Martín-Urda A, Richart C. Dissection of genetic factors in cardiovascular disease in a mediterranean population. Atherosclerosis 2000. [DOI: 10.1016/s0021-9150(00)80582-1] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Offner H, Adlard K, Zamora A, Vandenbark AA. Estrogen potentiates treatment with T-cell receptor protein of female mice with experimental encephalomyelitis. J Clin Invest 2000; 105:1465-72. [PMID: 10811854 PMCID: PMC315468 DOI: 10.1172/jci9213] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.8] [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] [Indexed: 11/17/2022] Open
Abstract
Transgenic mice expressing the BV8S2 chain, which is specific for the myelin basic protein determinant Ac1-11, possess a naturally induced set of regulatory T cells directed against BV8S2. Further activation of anti-BV8S2 T cells in male mice with recombinant BV8S2 protein can inhibit IFN-gamma release by Ac1-11-specific T cells through a cytokine-driven mechanism and prevent induction of experimental autoimmune encephalomyelitis (EAE). In contrast, naive female mice possess fewer anti-BV8S2-reactive T cells, and treatment with BV8S2 delayed but did not prevent EAE. We here demonstrate that combining T-cell receptor (TCR) vaccination with supplemental estrus doses of estrogen potentiated IL-10 production by anti-BV8S2-reactive T cells and induced Ac1-11-specific T cells to produce IL-10 and TGF-beta. This combined treatment resulted in full protection against EAE, which was not observed with either therapy alone. These findings imply that supplemental estrogen can enhance the efficacy of TCR-based immunotherapy for autoimmune diseases that predominate in females.
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Affiliation(s)
- H Offner
- Neuroimmunology Research, Veterans Affairs Medical Center, Portland, Oregon 97201, USA.
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Feliu J, Ventura JL, Segura R, Rodas G, Riera J, Estruch A, Zamora A, Capdevila L. Differences between lactate concentration of samples from ear lobe and the finger tip. J Physiol Biochem 1999; 55:333-9. [PMID: 10731085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Blood lactate concentrations in capillary samples obtained from the ear lobe or from the finger tip are used indistinctly, since they are considered equivalents. The aim of the study reported in this paper was to verify whether that assumption is valid due to the practical implications which any possible differences between these two sampling sites would have in the planning and assessing of an athletic training program. Twenty six healthy male athletes competing in different sports at the national level (9 rowers, 7 cyclists and 10 runners) were studied during the performance of a graded exercise test up to the point of exhaustion, on specific ergometers. In each group, capillary blood samples were obtained simultaneously from both the ear lobe and the finger tip at three different times during the test: 1) in resting conditions; 2) when exercising at a submaximal work load and 3) seven minutes after the point of exhaustion. Significant differences were found between the blood lactate concentrations of samples obtained from the ear lobe and from the finger tip (p < 0.001). The method error of repeated measurements for lactate concentrations from paired samples obtained in resting conditions was 27%, when exercising at a submaximal work load, 16% and at maximal work load, 3%. Capillary blood samples collected from the finger tip consistently showed higher values in lactate concentration than those obtained, at the same time, from the ear lobe.
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Affiliation(s)
- J Feliu
- Department of Physiological Sciences II. University of Barcelona, Spain
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Bourdoulous S, Béraud E, Le Page C, Zamora A, Ferry A, Bernard D, Strosberg AD, Couraud PO. Anergy induction in encephalitogenic T cells by brain microvessel endothelial cells is inhibited by interleukin-1. Eur J Immunol 1995; 25:1176-83. [PMID: 7539749 DOI: 10.1002/eji.1830250507] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Experimental autoimmune encephalomyelitis (EAE) is an inflammatory disease of the central nervous system (CNS) which can be induced, in susceptible strains like Lewis rats, by transfer of activated myelin basic protein (MBP)-specific CD4+ T lymphocytes. The role of cerebral endothelium in the onset of EAE, with regard to adhesion, activation and infiltration in the CNS of encephalitogenic T lymphocytes, is not fully understood. When pretreated by interferon-gamma, the immortalized Lewis rat brain microvessel endothelial (RBE4) cells expressed major histocompatibility complex class II molecules and stimulated MBP-specific proliferation and cytolytic activity of the syngeneic encephalitogenic T cell line, designated PAS. However, RBE4-stimulated PAS lymphocytes subsequently entered an unresponsive state, known as anergy. When inoculated in syngeneic animals, anergic PAS cells, although still cytotoxic, failed to induce EAE, and no cell infiltration was detectable within CNS. The addition of interleukin-1 beta (IL-1 beta) during MBP presentation by RBE4 cells prevented T cell anergy induction, and maintained T cell encephalitogenicity, although PAS cells stimulated in these conditions caused delayed and attenuated clinical signs of EAE, with only discrete inflammatory lesions in the CNS, compared with EAE induced by PAS cells fully activated by thymic cells. Altogether, our results indicate that MBP presentation by brain microvessel endothelial cells to encephalitogenic T cells induces T cell anergy and loss of pathogenicity. In addition, IL-1 beta co-stimulation of T cells prevents anergy induction in vitro and at least partially maintains encephalitogenicity in vivo.
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Mucio M, Felemovicius J, De la Concha F, Cabello R, Zamora A. The Mexican experience with laparoscopic cholecystectomy and common bile duct exploration. A multicentric trial. Surg Endosc 1994; 8:306-9. [PMID: 8209300 DOI: 10.1007/bf00590959] [Citation(s) in RCA: 13] [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: 01/29/2023]
Abstract
We present here the initial data collected since the first laparoscopic cholecystectomy (LC) was performed in our country (June 1990). Twenty-one centers were surveyed (2,399 patients). The most frequent indication for LC was chronic gallstone disease (76.2%). The female population predominated (69.4%). Seven centers always perform the laparoscopic approach. Antibiotic prophylaxis is the rule, and most centers use nasogastric tube and urinary catheterization. Perioperative cholangiography is done selectively. The instrument of choice to dissect the gallbladder is the electrosurgical hook-knife. General anesthesia is preferred (97%). The complication rate was 8.87%. Injury to the bile duct and bowel perforation occurred in 0.25% and common duct stone retention occurred in 0.29% of patients. Mortality rate reached 0.12%. It is our hope that this study will help in defining the situation of LC in developing countries and that it also can serve as a first step in the organization of minimally invasive surgery groups in Mexico.
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Affiliation(s)
- M Mucio
- Minimally Invasive Surgery Clinic, Hospital General, Mexico City, Mexico
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