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Kaye K, Paprottka F, Escudero R, Casabona G, Montes J, Fakin R, Moke L, Stasch T, Richter D, Benito-Ruiz J. Elective, Non-urgent Procedures and Aesthetic Surgery in the Wake of SARS-COVID-19: Considerations Regarding Safety, Feasibility and Impact on Clinical Management. Aesthetic Plast Surg 2020; 44:1014-1042. [PMID: 32410196 PMCID: PMC7224128 DOI: 10.1007/s00266-020-01752-9] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [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: 04/24/2020] [Accepted: 05/04/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The worldwide spread of a novel coronavirus disease (COVID-19) has led to a near total stop of non-urgent, elective surgeries across all specialties in most affected countries. In the field of aesthetic surgery, the self-imposed moratorium for all aesthetic surgery procedures recommended by most international scientific societies has been adopted by many surgeons worldwide and resulted in a huge socioeconomic impact for most private practices and clinics. An important question still unanswered in most countries is when and how should elective/aesthetic procedures be scheduled again and what kind of organizational changes are necessary to protect patients and healthcare workers when clinics and practices reopen. Defining manageable, evidence-based protocols for testing, surgical/procedural risk mitigation and clinical flow management/contamination management will be paramount for the safety of non-urgent surgical procedures. METHODS We conducted a MEDLINE/PubMed research for all available publications on COVID-19 and surgery and COVID-19 and anesthesia. Articles and referenced literature describing possible procedural impact factors leading to exacerbation of the clinical evolution of COVID-19-positive patients were identified to perform risk stratification for elective surgery. Based on these impact factors, considerations for patient selection, choice of procedural complexity, duration of procedure, type of anesthesia, etc., are discussed in this article and translated into algorithms for surgical/anesthesia risk management and clinical management. Current recommendations and published protocols on contamination control, avoidance of cross-contamination and procedural patient flow are reviewed. A COVID-19 testing guideline protocol for patients planning to undergo elective aesthetic surgery is presented and recommendations are made regarding adaptation of current patient information/informed consent forms and patient health questionnaires. CONCLUSION The COVID-19 crisis has led to unprecedented challenges in the acute management of the crisis, and the wave only recently seems to flatten out in some countries. The adaptation of surgical and procedural steps for a risk-minimizing management of potential COVID-19-positive patients seeking to undergo elective aesthetic procedures in the wake of that wave will present the next big challenge for the aesthetic surgery community. We propose a clinical algorithm to enhance patient safety in elective surgery in the context of COVID-19 and to minimize cross-contamination between healthcare workers and patients. New evidence-based guidelines regarding surgical risk stratification, testing, and clinical flow management/contamination management are proposed. We believe that only the continuous development and broad implementation of guidelines like the ones proposed in this paper will allow an early reintegration of all aesthetic procedures into the scope of surgical care currently performed and to prepare the elective surgical specialties better for a possible second wave of the pandemic. LEVEL OF EVIDENCE V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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Affiliation(s)
- K. Kaye
- Ocean Clinic Marbella, Marbella, Spain
| | | | | | | | - J. Montes
- Torre Medica Auxilio Mutuo, San Juan, PR USA
| | - R. Fakin
- Ocean Clinic Zurich, Zurich, Switzerland
| | - L. Moke
- grid.410569.f0000 0004 0626 3338Department of Orthopedic Surgery, University Hospital Leuven, Louvain, Belgium
| | - T. Stasch
- Vitality Fountain Clinic Plastic and Aesthetic Surgery Centre, Nairobi, Kenya
| | - D. Richter
- Department for Plastic Surgery, Dreifaltigkeitskrankenhaus Wesseling, Wesseling, Germany
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Oriol I, Sabe N, Càmara J, Berbel D, Ballesteros MA, Escudero R, Lopez-Medrano F, Linares L, Len O, Silva JT, Oliver E, Soldevila L, Pérez-Recio S, Guillem LL, Camprubí D, LLadó L, Manonelles A, González-Costello J, Domínguez MA, Fariñas MC, Lavid N, González-Rico C, Garcia-Cuello L, Arnaiz de Las Revillas F, Fortun J, Aguado JM, Jimenez-Romero C, Bodro M, Almela M, Paredes D, Moreno A, Pérez-Cameo C, Muñoz-Sanz A, Blanco-Fernández G, Cabo-González JA, García-López JL, Nuño E, Carratalà J. The Impact of Culturing the Organ Preservation Fluid on Solid Organ Transplantation: A Prospective Multicenter Cohort Study. Open Forum Infect Dis 2019; 6:ofz180. [PMID: 31198815 PMCID: PMC6546202 DOI: 10.1093/ofid/ofz180] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [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: 02/19/2019] [Accepted: 04/17/2019] [Indexed: 01/29/2023] Open
Abstract
Background We analyzed the prevalence, etiology, and risk factors of culture-positive preservation fluid and their impact on the management of solid organ transplant recipients. Methods From July 2015 to March 2017, 622 episodes of adult solid organ transplants at 7 university hospitals in Spain were prospectively included in the study. Results The prevalence of culture-positive preservation fluid was 62.5% (389/622). Nevertheless, in only 25.2% (98/389) of the cases were the isolates considered "high risk" for pathogenicity. After applying a multivariate regression analysis, advanced donor age was the main associated factor for having culture-positive preservation fluid for high-risk microorganisms. Preemptive antibiotic therapy was given to 19.8% (77/389) of the cases. The incidence rate of preservation fluid-related infection was 1.3% (5 recipients); none of these patients had received preemptive therapy. Solid organ transplant (SOT) recipients with high-risk culture-positive preservation fluid receiving preemptive antibiotic therapy presented both a lower cumulative incidence of infection and a lower rate of acute rejection and graft loss compared with those who did not have high-risk culture-positive preservation fluid. After adjusting for age, sex, type of transplant, and prior graft rejection, preemptive antibiotic therapy remained a significant protective factor for 90-day infection. Conclusions The routine culture of preservation fluid may be considered a tool that provides information about the contamination of the transplanted organ. Preemptive therapy for SOT recipients with high-risk culture-positive preservation fluid may be useful to avoid preservation fluid-related infections and improve the outcomes of infection, graft loss, and graft rejection in transplant patients.
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Affiliation(s)
- I Oriol
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI).,Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona
| | - N Sabe
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI).,Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona
| | - J Càmara
- Microbiology Department, Hospital Universitari de Bellvitge-Universitat de Barcelona-IDIBELL, L'Hospitalet de Llobregat, Spain.,CIBER de Enfermedades Respiratorias (CIBERes), Madrid, Spain
| | - D Berbel
- Microbiology Department, Hospital Universitari de Bellvitge-Universitat de Barcelona-IDIBELL, L'Hospitalet de Llobregat, Spain.,CIBER de Enfermedades Respiratorias (CIBERes), Madrid, Spain
| | - M A Ballesteros
- Intensive Care Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - R Escudero
- Infectious Diseases Department, Hospital Universitario Ramón y Cajal, Madrid, Spain. IRYCIS
| | - F Lopez-Medrano
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Sanitaria Hospital "12 de Octubre" (imas12), Madrid, Spain.,School of Medicine, Universidad Complutense, Madrid, Spain
| | - L Linares
- Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona.,Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - O Len
- Infectious Diseases Department, Hospital Universitari Vall d'Hebron, Barcelona, Spain.,Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J T Silva
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Sanitaria Hospital "12 de Octubre" (imas12), Madrid, Spain.,School of Medicine, Universidad Complutense, Madrid, Spain.,Department of Infectious Diseases, Hospital Universitario de Badajoz, Spain
| | - E Oliver
- Donor Coordination Unit, Bellvitge University Hospital, Barcelona, Spain
| | - L Soldevila
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Pérez-Recio
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain
| | - L L Guillem
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain
| | - D Camprubí
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain
| | - L LLadó
- Liver Transplant Unit, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (Barcelona), Spain
| | - A Manonelles
- Department of Nephrology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (Barcelona), Spain
| | - J González-Costello
- Department of Cardiology, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat (Barcelona), Spain
| | - M A Domínguez
- Spanish Network for Research in Infectious Diseases (REIPI).,Microbiology Department, Hospital Universitari de Bellvitge-Universitat de Barcelona-IDIBELL, L'Hospitalet de Llobregat, Spain.,Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, University of Barcelona, Barcelona
| | - M C Fariñas
- Infectious Diseases Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - N Lavid
- Donor Coordination Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - C González-Rico
- Infectious Diseases Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - L Garcia-Cuello
- Infectious Diseases Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - F Arnaiz de Las Revillas
- Infectious Diseases Unit, Marqués de Valdecilla Hospital, University of Cantabria, IDIVAL, Santander, Spain
| | - J Fortun
- Infectious Diseases Department, Hospital Universitario Ramón y Cajal, Madrid, Spain. IRYCIS
| | - J M Aguado
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Sanitaria Hospital "12 de Octubre" (imas12), Madrid, Spain.,School of Medicine, Universidad Complutense, Madrid, Spain
| | - C Jimenez-Romero
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Sanitaria Hospital "12 de Octubre" (imas12), Madrid, Spain.,School of Medicine, Universidad Complutense, Madrid, Spain
| | - M Bodro
- Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona.,Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - M Almela
- Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona.,Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - D Paredes
- Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona.,Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - A Moreno
- Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona.,Infectious Diseases Department, Hospital Clínic-IDIBAPS, Barcelona, Spain
| | - C Pérez-Cameo
- Universitat Autònoma de Barcelona, Barcelona, Spain.,Department of Internal Medicine, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - A Muñoz-Sanz
- Department of Infectious Diseases, Hospital Universitario de Badajoz, Spain
| | | | | | - J L García-López
- Donor Coordination Unit, Hospital universitario de Badajoz, Spain
| | - E Nuño
- Donor Coordination Unit, Hospital universitario de Badajoz, Spain
| | - J Carratalà
- Infectious Disease Department, Hospital Universitari de Bellvitge - IDIBELL; L'Hospitalet de Llobregat, Barcelona, Spain.,Spanish Network for Research in Infectious Diseases (REIPI).,Clinical Science Department, Faculty of Medicine, University of Barcelona, Barcelona
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3
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Venanzi E, Martín-Dávila P, López J, Maiz L, de la Pedrosa EGG, Gioia F, Escudero R, Filigheddu E, Moreno S, Fortún J. Aerosolized Lipid Amphotericin B for Complementary Therapy and/or Secondary Prophylaxis in Patients with Invasive Pulmonary Aspergillosis: A Single-Center Experience. Mycopathologia 2019; 184:239-250. [PMID: 30903580 DOI: 10.1007/s11046-019-00331-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 11/19/2018] [Accepted: 03/14/2019] [Indexed: 01/27/2023]
Abstract
BACKGROUND Experience with aerosolized lipid amphotericin B (aeLAB) as therapy or secondary prophylaxis in patients with invasive pulmonary aspergillosis (IPA) is anecdotal. METHODS We performed a single-center retrospective cohort study to evaluate the efficacy of systemic antifungal therapy with and without aeLAB in patients with proven or probable IPA. Complete or partial response at 3 months was the primary end-point. Clinical response and mortality at 12 months, occurrence of adverse drug reactions and respiratory fungal colonization were secondary end-point. RESULTS Eleven patients (39%) received aeLAB in addition to systemic antifungal therapy (group A), and 22 (61%) received systemic antifungal therapy only (group B). The use of aeLAB was not standardized. Amphotericin B lipid complex was used in all patients but one, who received liposomal amphotericin B. Five patients received aeLAB as antifungal complementary therapy and 6 received it as secondary prophylaxis. Except for the requirement of inhaled corticosteroids and home oxygen therapy, more frequent in group A, both groups were similar in baseline conditions. A better (nonsignificant) clinical outcome was observed at 3 months in patients receiving aeLAB. Only uncontrolled baseline condition was associated with one-year mortality in univariate analysis (p = 0.002). A multivariate Cox regression analysis suggests that aeLAB, corrected for uncontrolled underlying disease, reduces mortality at 12 months (HR 0.258; 95% CI 0.072-0.922; p = 0.037). CONCLUSION Although no significant difference was observed in the main variable (3-month clinical response) and in spite of methodological limitations of the study, the possible survival benefit of aeLAB, adjusted for the control of the underlying disease, could justify the performance of well-controlled studies with a greater number of patients.
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Affiliation(s)
- E Venanzi
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
| | - P Martín-Dávila
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - J López
- Hematology Department, Hospital Ramón y Cajal, Madrid, Spain
| | - L Maiz
- Pneumology Department, Hospital Ramón y Cajal, Madrid, Spain
| | - E Gómez-García de la Pedrosa
- Microbiology Department, Hospital Ramón y Cajal, Madrid, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - F Gioia
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - R Escudero
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
- Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - E Filigheddu
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
| | - S Moreno
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain
| | - J Fortún
- Department of Infectious Diseases, Hospital Universitario Ramon y Cajal, Carretera Colmenar km 9,1, 28034, Madrid, Spain.
- Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain.
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García-García A, Cambero M, Castejón D, Escudero R, Fernández-Valle M. Dry cured-ham microestructure: A T NMR relaxometry, SEM and uniaxial tensile test combined study. Food Structure 2019. [DOI: 10.1016/j.foostr.2018.100104] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Argüelles-Pesqueira AI, Diéguez-Armenta NM, Bobadilla-Valencia AK, Nataraj SK, Rosas-Durazo A, Esquivel R, Alvarez-Ramos ME, Escudero R, Guerrero-German P, Lucero-Acuña JA, Zavala-Rivera P. Low intensity sonosynthesis of iron carbide@iron oxide core-shell nanoparticles. Ultrason Sonochem 2018; 49:303-309. [PMID: 30177494 DOI: 10.1016/j.ultsonch.2018.08.017] [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: 02/20/2018] [Revised: 08/14/2018] [Accepted: 08/16/2018] [Indexed: 05/27/2023]
Abstract
Here we demonstrate a simple method for the organic sonosynthesis of stable Iron Carbide@Iron Oxide core-shell nanoparticles (ICIONPs) stabilized by oleic acid surface modification. This robust synthesis route is based on the sonochemistry reaction of organometallic precursor like Fe(CO)5 in octanol using low intensity ultrasonic bath. As obtained, nanoparticles diameter sizes were measured around 6.38 nm ± 1.34 with a hydrodynamic diameter around 25 nm and an estimated polydispersity of 0.27. Core-Shell structure of nanoparticles was confirmed using HR-TEM and XPS characterization tools in which a core made up of iron carbide (Fe3C) and a shell of magnetite (γ-Fe2O3) was found. The overall nanoparticle presented ferromagnetic behavior at 4 K by SQUID. With these characteristics, the ICIONPs can be potentially used in various applications such as theranostic agent due to their properties obtained from the iron oxides and iron carbide phases.
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Affiliation(s)
- A I Argüelles-Pesqueira
- Posgrado en Ciencias de la Ingeniería, Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, 83000, Mexico
| | - N M Diéguez-Armenta
- Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, 83000, Mexico
| | - A K Bobadilla-Valencia
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, A.P. 70-360, Ciudad de México 04510, Mexico
| | - S K Nataraj
- Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Kanakapura, Ramanagaram, Bangalore 562112, India
| | - A Rosas-Durazo
- Posgrado en Ciencias de la Ingeniería, Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, 83000, Mexico
| | - R Esquivel
- Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, 83000, Mexico
| | - M E Alvarez-Ramos
- Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, 83000, Mexico
| | - R Escudero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, A.P. 70-360, Ciudad de México 04510, Mexico
| | - P Guerrero-German
- Posgrado en Ciencias de la Ingeniería, Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, 83000, Mexico
| | - J A Lucero-Acuña
- Posgrado en Ciencias de la Ingeniería, Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, 83000, Mexico; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, 83000, Mexico
| | - P Zavala-Rivera
- Posgrado en Ciencias de la Ingeniería, Departamento de Ingeniería Química y Metalurgia, Universidad de Sonora, 83000, Mexico; Posgrado en Nanotecnología, Departamento de Física, Universidad de Sonora, 83000, Mexico.
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6
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García-García AB, Fernández-Valle ME, Castejón D, Escudero R, Cambero MI. Use of MRI as a predictive tool for physicochemical and rheologycal features during cured ham manufacturing. Meat Sci 2018; 148:171-180. [PMID: 30388482 DOI: 10.1016/j.meatsci.2018.10.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 06/18/2018] [Revised: 10/22/2018] [Accepted: 10/22/2018] [Indexed: 11/17/2022]
Abstract
Magnetic resonance imaging (MRI) was used to study the structural changes during dry-cured ham manufacturing. T1, T2 and apparent diffusion coefficient (ADC) were determined. Dry cured hams were analysed at different steps of the manufacturing process (raw, salted, post salted, half-cured and cured). Structural changes were linked with the rheological behaviour, estimated by texture profile analysis (TPA) performed in three different muscles of hams (semimembranosus, semitendinosus and biceps femoris). A decrease for T1, T2 and ADC parameters during the curing process was observed, connected to the dehydration kinetics and salt diffusion. Curing process increased hardness and chewiness and reduced elasticity and cohesiveness. Mathematical models were defined to obtain useful equations to monitor ripening. Multiple and simple linear regression models were performed to predict water and salt content and rheological features evolution through MRI parameters. Best settings were achieved with water and salt content for the three studied muscles (R2 around 0.90). T1, T2 and ADC showed a negative correlation with hardness and a positive relation with springiness and cohesiveness.
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Affiliation(s)
- A B García-García
- Sección Departamental de Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M E Fernández-Valle
- CAI de Resonancia Magnética Nuclear y de Espín Electrónico, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - D Castejón
- CAI de Resonancia Magnética Nuclear y de Espín Electrónico, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - R Escudero
- Sección Departamental de Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - M I Cambero
- Sección Departamental de Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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Abstract
There is a controversy on the role of solids in flotation systems in terms of the characteristics of the solid-liquid-gas dispersions. The effect of slurries containing carbon or silica on the characteristics of gas-slurry dispersions generated in a flotation column was studied. Experimental results suggest that hydrophilic solids prevent bubbles coalescence, and produces large bubble surface areas, available to collide and collect particles during flotation. On the other hand slurries with hydrophobic particles produce larger bubbles, affecting both the performance and the hydrodynamics of the process.
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Lopes de Carvalho I, Toledo A, Carvalho CL, Barandika JF, Respicio-Kingry LB, Garcia-Amil C, García-Pérez AL, Olmeda AS, Zé-Zé L, Petersen JM, Anda P, Núncio MS, Escudero R. Francisella species in ticks and animals, Iberian Peninsula. Ticks Tick Borne Dis 2015; 7:159-165. [PMID: 26520052 DOI: 10.1016/j.ttbdis.2015.10.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 04/27/2015] [Revised: 08/24/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
Abstract
The presence of Francisella species in 2134 ticks, 93 lagomorphs and 280 small mammals from the Iberian Peninsula was studied. Overall, 19 ticks and 6 lagomorphs were positive for Francisella tularensis subsp. holarctica, suggesting, as described for other regions, that lagomorphs may have an important role in the maintenance of F. tularensis in nature. Of the 6 positive lagomorphs, 4 were identified as the European rabbit, Oryctogalus cuniculus. Additionally, 353 ticks and 3 small mammals were PCR positive for Francisella-like endosymbionts (FLEs) and one small mammal was also positive for Francisella hispaniensis-like DNA sequences. Among FLE positive specimens, a variety of sequence types were detected: ticks were associated with 5 lpnA sequence types, with only one type identified per tick, in contrast to 2 lpnA sequence types detected in a single wood mouse (Apodemus sylvaticus). To our knowledge, this is the first report of FLEs in free-living small mammals as well as the first detection of F. hispaniensis-like sequences in a natural setting.
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Affiliation(s)
| | - A Toledo
- Instituto de Salud Carlos III, Majadahonda, Madrid, Spain; Universidad Complutense de Madrid, Madrid, Spain
| | - C L Carvalho
- Instituto Nacional de Saúde Dr. Ricardo Jorge, Águas de Moura, Portugal; University of Évora, Évora, Portugal
| | - J F Barandika
- NEIKER - Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Biscay, Spain
| | | | - C Garcia-Amil
- Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - A L García-Pérez
- NEIKER - Instituto Vasco de Investigación y Desarrollo Agrario, Derio, Biscay, Spain
| | - A S Olmeda
- Universidad Complutense de Madrid, Madrid, Spain
| | - L Zé-Zé
- Instituto Nacional de Saúde Dr. Ricardo Jorge, Águas de Moura, Portugal
| | - J M Petersen
- Centers for Disease Control and Prevention, Fort Collins, CO, USA
| | - P Anda
- Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - M S Núncio
- Instituto Nacional de Saúde Dr. Ricardo Jorge, Lisbon, Portugal; Instituto Nacional de Saúde Dr. Ricardo Jorge, Águas de Moura, Portugal
| | - R Escudero
- Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
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9
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Norte AC, da Silva LP, Tenreiro PJQ, Felgueiras MS, Araújo PM, Lopes PB, Matos C, Rosa A, Ferreira PJSG, Encarnação P, Rocha A, Escudero R, Anda P, Núncio MS, Lopes de Carvalho I. Patterns of tick infestation and their Borrelia burgdorferi s.l. infection in wild birds in Portugal. Ticks Tick Borne Dis 2015; 6:743-50. [PMID: 26159798 DOI: 10.1016/j.ttbdis.2015.06.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 12/17/2014] [Revised: 06/23/2015] [Accepted: 06/25/2015] [Indexed: 10/23/2022]
Abstract
Wild birds may act as reservoirs for zoonotic pathogens and may be mechanical carriers of pathogen infected vector ticks through long distances during migration. The aim of this study was to assess tick infestation patterns in birds in Portugal and the prevalence of tick infection by Borrelia burgdorferi s.l. using PCR techniques. Seven tick species were collected from birds including Haemaphysalis punctata, Hyalomma spp., Ixodes acuminatus, Ixodes arboricola, Ixodes frontalis, Ixodes ricinus and Ixodes ventalloi. We found that I. frontalis and Hyalomma spp. were the most common ticks infesting birds of several species and that they were widespread in Portugal. Turdus merula was the bird species that presented the highest diversity of infesting ticks and had one of the highest infestation intensities. B. burgdorferi s.l. was detected in 7.3% (37/505) of Ixodidae ticks derived from birds. The most common genospecies was Borrelia turdi (6.9%), detected in ticks collected from Parus major, T. merula and Turdus philomelos, but Borrelia valaisiana (0.2%) and one Borrelia sp. (0.2%) similar to Borrelia bissettii (96% of similarity of the flaB gene in Blastn) were also detected. This study contributed to a better knowledge of the Ixodidae tick fauna parasitizing birds in Western Europe and to the assessment of the prevalence of B. burgdorferi s.l. associated with birds and their ticks.
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Affiliation(s)
- A C Norte
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Largo Marquês de Pombal, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal; Centre for Vector and Infectious Diseases Research, National Institute of Health Doutor Ricardo Jorge, Águas de Moura, Portugal.
| | - L P da Silva
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Largo Marquês de Pombal, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal; CFE - Centre for Functional Ecology, Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal
| | - P J Q Tenreiro
- Instituto da Conservação da Natureza e das Florestas, IP, DCNFC-DGOV, Mata Nacional do Choupal, 3000-611 Coimbra, Portugal
| | - M S Felgueiras
- A ROCHA - Associação Cristã de Estudo e Defesa do Ambiente, Apartado 41, 8501-903 Mexilhoeira Grande, Portugal
| | - P M Araújo
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Largo Marquês de Pombal, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - P B Lopes
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Largo Marquês de Pombal, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - C Matos
- Rua da capela, n°13, 7630-711 Bicos, Odemira, Portugal
| | - A Rosa
- Casais da Estrada, 2000-335 Achete, Santarém, Portugal
| | | | - P Encarnação
- Instituto da Conservação da Natureza e das Florestas, IP, Estação Ornitológica do Monte do Outeirão - Apartado 139, 7500-999 Vila Nova Santo André, Portugal
| | - A Rocha
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Largo Marquês de Pombal, Faculty of Sciences and Technology, University of Coimbra, 3004-517 Coimbra, Portugal
| | - R Escudero
- Laboratorio de Espiroquetas y Patógenos Especiales, Servicio de Bacteriología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - P Anda
- Laboratorio de Espiroquetas y Patógenos Especiales, Servicio de Bacteriología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Madrid, Spain
| | - M S Núncio
- Centre for Vector and Infectious Diseases Research, National Institute of Health Doutor Ricardo Jorge, Águas de Moura, Portugal
| | - I Lopes de Carvalho
- Centre for Vector and Infectious Diseases Research, National Institute of Health Doutor Ricardo Jorge, Águas de Moura, Portugal; Emergence Response and Biopreparadness Unit, National Institute of Health Doutor Ricardo Jorge, Lisbon, Portugal
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10
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Gómez-Serrano C, Morales-Amaral MM, Acién FG, Escudero R, Fernández-Sevilla JM, Molina-Grima E. Utilization of secondary-treated wastewater for the production of freshwater microalgae. Appl Microbiol Biotechnol 2015; 99:6931-44. [DOI: 10.1007/s00253-015-6694-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 05/05/2015] [Indexed: 01/13/2023]
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11
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Segura J, Escudero R, Romero de Ávila MD, Cambero MI, López-Bote CJ. Effect of fatty acid composition and positional distribution within the triglyceride on selected physical properties of dry-cured ham subcutaneous fat. Meat Sci 2015; 103:90-5. [PMID: 25644667 DOI: 10.1016/j.meatsci.2015.01.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 05/28/2014] [Revised: 01/08/2015] [Accepted: 01/20/2015] [Indexed: 11/19/2022]
Abstract
Analysis of fatty acid (FA) positional distribution within the triglyceride (TG) and selected physical properties of dry-cured ham subcutaneous fat (SF) were carried out. The slip point (SP) of the SF was related to the concentration and positional distribution of FA. When C16:0 was in Sn-2, the SP depended on the FA present in Sn-1,3. Hardness was related to the FA concentration in external positions of TG. A significant direct linear correlation between hardness against C18:0, SFA and average chain length (ACL) and inverse against C18:1, C18:2 and PUFA and unsaturation index (UI) in external positions was found. Adhesiveness was related to SFA, C16:0, C18:0, C18:1, MUFA, UI and ACL exclusively in Sn-2 position. A different role of FA in Sn-2 and Sn-1,3 positions on SP and texture properties of fat was found.
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Affiliation(s)
- J Segura
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - R Escudero
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - M D Romero de Ávila
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - M I Cambero
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain.
| | - C J López-Bote
- Departamento de Producción Animal, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
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12
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Escudero R, López-Romero RE, Morales F. Study of the hidden-order of URu₂Si₂ by point contact tunnel junctions. J Phys Condens Matter 2015; 27:015701. [PMID: 25469859 DOI: 10.1088/0953-8984/27/1/015701] [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] [Indexed: 06/04/2023]
Abstract
URu2Si2 presents superconductivity at temperatures below 1.5 K and a hidden order (HO) at about 17.5 K. Both electronic phenomena are influenced by Fano and Kondo resonances. At 17.5 K the HO was related in the past to a Peierls distortion that produces an energy gap deformed by the resonances. This order has been studied for more than 20 years and still there is no clear understanding. In this work we studied the electronic characteristics of URu2Si2 in a single crystal, with tunneling and metallic point contact spectroscopies. In the superconducting state, we determined the energy gap, which shows the influence of the Fano and Kondo resonances. At temperatures where HO is observed, the tunnel junctions spectra show the influence of the two resonances. Tunnel junction characteristics show that the Fermi surface nesting depends on the crystallographic direction.
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Affiliation(s)
- R Escudero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México. A. Postal 70-360, 04510 México city, DF, Mexico
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13
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Romero de Ávila MD, Ordóñez JA, Escudero R, Cambero MI. The suitability of plasma powder for cold-set binding of pork and restructured dry ham. Meat Sci 2014; 98:709-17. [PMID: 25089798 DOI: 10.1016/j.meatsci.2014.06.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 03/05/2012] [Revised: 03/21/2014] [Accepted: 06/13/2014] [Indexed: 11/24/2022]
Abstract
To determine the ability of cold-set binder plasma powder (PP) for manufacturing restructured deboned dry ham, the effect of meat pre-treatment and PP preparation on the binding rate (k) and maximum binding force (BFmax) of pork model systems and deboned ham were evaluated. In pork model systems, the highest values for k (about 0.4Ncm(-2)h(-1)) and BFmax (about 2.5Ncm(-2)) were obtained when powder or rehydrated plasma [in water or in NaCl aqueous solution at 0.5%] was applied onto the meat surface without additional pre-treatment or prior immersion in saline aqueous solution. Similar meat pre-treatment and PP preparation were used to restructure fresh deboned leg resulting in stable meat binding performances during salting and drying. An important increase in the binding force (BFmax>10Ncm(-2)) occurred over the drying period (after 4weeks). Scanning electron microscopy showed different morphologies of the binding area, mainly depending on whether powder or rehydrated plasma was used.
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Affiliation(s)
- M D Romero de Ávila
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - J A Ordóñez
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - R Escudero
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain
| | - M I Cambero
- Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain.
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14
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Durán A, Tiznado H, Romo-Herrera JM, Domínguez D, Escudero R, Siqueiros JM. Nanocomposite YCrO3/Al2O3: Characterization of the Core–Shell, Magnetic Properties, and Enhancement of Dielectric Properties. Inorg Chem 2014; 53:4872-80. [DOI: 10.1021/ic4029589] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- A. Durán
- Universidad Nacional Autónoma de México, Centro de Nanociencias y
Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Apartado Postal
14, C. P. 22800, Ensenada, B. C. México
| | - H. Tiznado
- Universidad Nacional Autónoma de México, Centro de Nanociencias y
Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Apartado Postal
14, C. P. 22800, Ensenada, B. C. México
| | - J. M. Romo-Herrera
- Universidad Nacional Autónoma de México, Centro de Nanociencias y
Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Apartado Postal
14, C. P. 22800, Ensenada, B. C. México
| | - D. Domínguez
- Universidad Nacional Autónoma de México, Centro de Nanociencias y
Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Apartado Postal
14, C. P. 22800, Ensenada, B. C. México
| | - R. Escudero
- Universidad Nacional Autónoma de México, Instituto
de Investigaciones en Materiales, Apartado
Postal 70-360, México, D. F. 04510, México
| | - J. M. Siqueiros
- Universidad Nacional Autónoma de México, Centro de Nanociencias y
Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, Apartado Postal
14, C. P. 22800, Ensenada, B. C. México
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15
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Sánchez M, Lobera T, Del Pozo MD, Escudero R, Gonzalez I, Blasco A. Tolerance of triflusal in patients with immediate cutaneous hypersensitivity to nonsteroidal anti-inflammatory drugs. J Investig Allergol Clin Immunol 2014; 24:138-140. [PMID: 24834783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023] Open
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16
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Cosio-Castaneda C, de la Mora P, Morales F, Escudero R, Tavizon G. Magnetic behavior of the Bi2−ySryIr2O7 pyrochlore solid solution. J SOLID STATE CHEM 2013. [DOI: 10.1016/j.jssc.2013.01.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [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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17
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Gómez C, Escudero R, Morales MM, Figueroa FL, Fernández-Sevilla JM, Acién FG. Use of secondary-treated wastewater for the production of Muriellopsis sp. Appl Microbiol Biotechnol 2013; 97:2239-49. [DOI: 10.1007/s00253-012-4634-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Revised: 11/07/2012] [Accepted: 12/01/2012] [Indexed: 10/27/2022]
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18
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Abstract
Microcrystals of orthorhombic nickel (II) oxalate dihydrate were synthesized through a precipitation reaction of aqueous solutions of nickel chloride and oxalic acid. Magnetic susceptibility exhibits a sharp peak at 3.3 K and a broad rounded maximum near 43 K. We associated the lower maximum with a metamagnetic transition that occurs when the magnetic field is about ≥3.5 T. The maximum at 43 K is typical of 1D antiferromagnets, whereas weak ferromagnetism behavior was observed in the range of 3.3–43 K.
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Affiliation(s)
- E Romero-Tela
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico.
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19
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Alarcón E, del Pozo MD, Bartolomé B, Navarro B, Escudero R, Gonzalez I, Blasco A, Lobera T. Urticaria and angioedema due to ingestion of carob gum: a case report. J Investig Allergol Clin Immunol 2011; 21:77-78. [PMID: 21370730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Affiliation(s)
- E Alarcón
- Allergy Section, Hospital San Pedro, Logroño, La Rioja, Spain.
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20
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Gastaminza G, de la Borbolla JM, Goikoetxea MJ, Escudero R, Antón J, Espinós J, Lacasa C, Fernández-Benítez M, Sanz ML, Ferrer M. A new rapid desensitization protocol for chemotherapy agents. J Investig Allergol Clin Immunol 2011; 21:108-112. [PMID: 21462800] [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: 05/30/2023] Open
Abstract
BACKGROUND Desensitization has been used for some decades to treat patients with the allergenic drug when an alternative drug with similar efficacy and safety is not available. We present the results from a series of oncology patients desensitized at our hospital during the last 2 years. OBJECTIVE To assess the efficacy of a new desensitization protocol in patients allergic to chemotherapy drugs. METHODS We performed an observational retrospective study of 11 women (6 breast cancer and 5 ovarian cancer) who underwent our desensitization protocol. Four patients had immediate reactions to carboplatin, 3 to docetaxel, 3 to paclitaxel, and 1 to both docetaxel and paclitaxel. Premedication was administered in all cases. A 5-step protocol based on 5 different dilutions of the drugs was used. RESULTS We performed 39 desensitization procedures: 14 to carboplatin, 3 to oxaliplatin, 16 to docetaxel, and 6 to paclitaxel. Eight patients tolerated the full dose in 36 procedures. One patient suffered an anaphylactic reaction to carboplatin that reverted with treatment. One patient had dyspnea after a paclitaxel cycle. One patient experienced dyspnea due to chronic pulmonary thromboembolism related to her disease. CONCLUSION Desensitization is a useful procedure in patients who are allergic to their chemotherapy agents.
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Affiliation(s)
- G Gastaminza
- Department of Allergology and Clinical Immunology, Clinica Universidad de Navarra, Pamplona, Spain.
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21
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Toledo A, Anda P, Escudero R, Larsson C, Bergstrom S, Benach JL. Phylogenetic analysis of a virulent Borrelia species isolated from patients with relapsing fever. J Clin Microbiol 2010; 48:2484-9. [PMID: 20463158 PMCID: PMC2897527 DOI: 10.1128/jcm.00541-10] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [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] [Received: 03/12/2010] [Revised: 04/21/2010] [Accepted: 05/04/2010] [Indexed: 11/20/2022] Open
Abstract
Multilocus sequence analysis (MLSA) was used to clarify the taxonomic status of a virulent Borrelia organism previously isolated from patients with relapsing fever and from ticks in Spain that is designated the Spanish relapsing fever (SRF) Borrelia. This species has been used extensively in experimental infection models because of its continued virulence. Seven genes were amplified to analyze the phylogenetic relationships among several Spanish isolates of SRF Borrelia and other relapsing fever Borrelia species. The genes targeted in this study included rrs and flaB, which have commonly been used in phylogenetic studies; the rrf-rrl intergenic spacer (IGS), which is highly discriminatory; and four additional genes, p66, groEL, glpQ, and recC, which are located on the chromosome and which have therefore evolved in a clonal way. The species included in this study were Borrelia duttonii, B. recurrentis, B. crocidurae, and B. hispanica as Old World Borrelia species and B. turicatae and B. hermsii as New World Borrelia species. The results obtained by MLSA of the SRF Borrelia on the basis of 1% of the genomic sequence data analyzed confirmed that the SRF Borrelia isolates are B. hispanica. However, the prototype isolates of B. hispanica used in this study have an uncertain history and display unique phenotypic characteristics that are not shared with the SRF Borrelia. Therefore, we propose to use strain SP1, isolated from a relapsing fever patient in 1994 in southern Spain, as the type strain for B. hispanica.
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Affiliation(s)
- A Toledo
- Department of Molecular Genetics and Microbiology, Center for Infectious Diseases, Stony Brook University, Stony Brook, NY 11794-5120, USA.
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22
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Toledo A, Jado I, Olmeda AS, Casado-Nistal MA, Gil H, Escudero R, Anda P. Detection ofCoxiella burnetiiin Ticks Collected from Central Spain. Vector Borne Zoonotic Dis 2009; 9:465-8. [DOI: 10.1089/vbz.2008.0070] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A. Toledo
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - I. Jado
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - A. S. Olmeda
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - M. A. Casado-Nistal
- Departamento de Sanidad Animal, Facultad de Veterinaria, Universidad Complutense de Madrid, Madrid, Spain
| | - H. Gil
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - R. Escudero
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
| | - P. Anda
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain
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23
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Escudero R, Elía M, Sáez-Nieto JA, Menéndez V, Toledo A, Royo G, Rodríguez-Vargas M, Whipp MJ, Gil H, Jado I, Anda P. A possible novel Francisella genomic species isolated from blood and urine of a patient with severe illness. Clin Microbiol Infect 2009; 16:1026-30. [PMID: 19709068 DOI: 10.1111/j.1469-0691.2009.03029.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Two identical isolates were recovered in pure culture from the blood and urine of a patient suffering from severe septicaemia associated with obstructive pyelonephritis secondary to lithotripsy. Preliminary phenotypic and genotypic characterizations based on serological, biochemical and sequence analyses following PCR amplification of selected gene regions indicate that this organism represents a potential new Francisella genomic species.
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Affiliation(s)
- R Escudero
- Laboratorio de Espiroquetas y Patógenos Especiales, Servicio de Bacteriología, Centro Nacional de Microbiología, Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.
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24
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Escudero R, Morales F, Bernès S. Specific heat studies of pure Nb(3)Sn single crystals at low temperature. J Phys Condens Matter 2009; 21:325701. [PMID: 21693971 DOI: 10.1088/0953-8984/21/32/325701] [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] [Indexed: 05/30/2023]
Abstract
Specific heat measurements performed on high purity vapor-grown Nb(3)Sn crystals show clear features related to both the martensitic and superconducting transitions. Our measurements indicate that the martensitic anomaly does not display hysteresis, meaning that the martensitic transition could be a weak first-order or a second-order thermodynamic transition. Careful measurements of the two transition temperatures display an inverse correlation between them. At low temperature, specific heat measurements show the existence of a single superconducting energy gap feature.
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Affiliation(s)
- R Escudero
- Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Apartado Postal 70-360, México, DF 04510, Mexico
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25
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Lobera T, Navarro B, Del Pozo MD, González I, Blasco A, Escudero R, Venturini M, Alarcón E. Nine cases of omeprazole allergy: cross-reactivity between proton pump inhibitors. J Investig Allergol Clin Immunol 2009; 19:57-60. [PMID: 19274931] [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: 05/27/2023] Open
Abstract
Although rare, anaphylactic reactions induced by proton pump inhibitors have been reported. The presence of cross-reactivity between different members of the group is not clear. We studied 9 patients with adverse reactions to omeprazole. Clinical symptoms appeared immediately in 8 patients and after 4 hours in 1. Symptoms ranged from urticaria/angioedema in 7 cases to anaphylaxis in 2 cases. Skin prick tests and oral controlled challenge tests with omeprazole, lansoprazole, and pantoprazole were performed. Skin prick or intradermal tests with omeprazole were positive in 8 patients. Four were also positive to pantoprazole. Prick tests with lansoprazole were always negative. Lansoprazole was administered to all 9 patients, with good tolerance in 8. Only 3 patients were challenged with pantoprazole and developed widespread urticaria. We present 9 patients with immunoglobulin E-mediated allergy to omeprazole. In most of our cases, lansoprazole proved to be a good alternative treatment.
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Affiliation(s)
- T Lobera
- Department of Allergy, Hospital San Pedro/San Millán, Logroño, Spain.
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26
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27
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Barandika JF, Hurtado A, García-Esteban C, Gil H, Escudero R, Barral M, Jado I, Juste RA, Anda P, García-Pérez AL. Tick-borne zoonotic bacteria in wild and domestic small mammals in northern Spain. Appl Environ Microbiol 2007; 73:6166-71. [PMID: 17693556 PMCID: PMC2075008 DOI: 10.1128/aem.00590-07] [Citation(s) in RCA: 61] [Impact Index Per Article: 3.6] [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: 11/20/2022] Open
Abstract
The prevalence and diversity of tick-borne zoonotic bacteria (Borrelia spp., Anaplasma phagocytophilum, Coxiella burnetii, and spotted fever group rickettsiae) infecting 253 small mammals captured in the Basque Country (Spain) were assessed using PCR and reverse line blot hybridization. Trapping sites were selected around sheep farms (study 1, 2000 to 2002) and recreational parks (study 2, 2003 to 2005). The majority of the studied mammals (162) were wood mice (Apodemus sylvaticus), but six other different species were also analyzed: yellow-necked mice (Apodemus flavicollis), shrews (Crocidura russula and Sorex coronatus), bank voles (Clethrionomys glareolus), domestic mice (Mus domesticus), and moles (Talpa europaea). The results showed an infection rate ranging from 10.7% to 68.8%, depending on the small mammal species. One C. russula shrew and one A. sylvaticus mouse gave positive reactions for A. phagocytophilum, and C. burnetii was detected in two domestic mice and one A. sylvaticus mouse in a farm. The DNA of Borrelia spp. was detected in 67 animals (26.5%), most of them presenting positive hybridization with the probe for Borrelia sp. strain R57, the new Borrelia species previously detected in small mammals in our region. Furthermore, a second PCR and reverse line blot hybridization specific for B. burgdorferi sensu lato revealed the presence of Borrelia afzelii in 6.3% of C. glareolus voles and 14.3% of S. coronatus shrews. All small mammals were negative for spotted fever group rickettsiae. These results highlight the relevance of small mammals as reservoirs of some zoonotic bacteria.
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Affiliation(s)
- J F Barandika
- NEIKER, Instituto Vasco de Investigación y Desarrollo Agrario, 48160 Derio (Bizkaia), Spain
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Escudero R, Gamboa PM, Antón J, Sanz ML. Food allergy due to trout roe. J Investig Allergol Clin Immunol 2007; 17:346-347. [PMID: 17982930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Affiliation(s)
- R Escudero
- Department of Allergology and Clinical Immunology, University Clinic, University of Navarra, Pamplona, Spain
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de la Borbolla J, Escudero R, Antón J, Goikoetxea M, Sanz M, Ferrer M. Usefulness Of Specific Ige Determination To Recombinant Grass Pollen Allergens (cap-feia) In Pollinic Patients. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.330] [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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De las Marinas D, Cojocariu Z, Escudero R, Pardo N, Sanz ML. Anaphylaxis induced by lupine as a hidden allergen. J Investig Allergol Clin Immunol 2007; 17:283-4. [PMID: 17694709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2023] Open
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Penicaud A, Perez-Benitez A, Gleason V. R, Munoz P. E, Escudero R. Electrocrystallizing C60: synthesis, single crystal x-ray structure, and magnetic (ESR, SQUID) characterization of [(C6H5)4P]2[C60][I]x. J Am Chem Soc 2002. [DOI: 10.1021/ja00075a078] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.2] [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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Terrones H, Hayashi T, Muñoz-Navia M, Terrones M, Kim Y, Grobert N, Kamalakaran R, Dorantes-Dávila J, Escudero R, Dresselhaus M, Endo M. Graphitic cones in palladium catalysed carbon nanofibres. Chem Phys Lett 2001. [DOI: 10.1016/s0009-2614(01)00718-7] [Citation(s) in RCA: 101] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fernández-Varela J, Otero J, Escudero R, Ariza J. Modificaciones del pH arterial en sangre de cordón umbilical en partos con anomalías de la disposición funicular. Clínica e Investigación en Ginecología y Obstetricia 2001. [DOI: 10.1016/s0210-573x(01)77115-8] [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: 11/29/2022]
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Anda P, Segura del Pozo J, Díaz García JM, Escudero R, García Peña FJ, López Velasco MC, Sellek RE, Jiménez Chillarón MR, Sánchez Serrano LP, Martínez Navarro JF. Waterborne outbreak of tularemia associated with crayfish fishing. Emerg Infect Dis 2001; 7:575-82. [PMID: 11485678 PMCID: PMC2631832 DOI: 10.3201/eid0707.010740] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In 1997, an outbreak of human tularemia associated with hare-hunting in central Spain affected 585 patients. We describe the identification of Francisella tularensis biovar palaearctica in a second outbreak of ulceroglandular tularemia associated with crayfish (Procambarus clarkii) fishing in a contaminated freshwater stream distant from the hare-associated outbreak. The second outbreak occurred 1 year after the first.
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Affiliation(s)
- P Anda
- Instituto de Salud Carlos III, Majadahonda, Madrid, Spain.
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36
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Murrieta H, Aguilar G, Ramirez J, Akachi T, Barrio RA, Escudero R, Rubio J. An electron paramagnetic resonance study of Y-Ba-Cu-O-type ceramics in superconducting and nonsuperconducting phases. ACTA ACUST UNITED AC 2000. [DOI: 10.1088/0022-3719/21/28/013] [Citation(s) in RCA: 3] [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] [Indexed: 11/12/2022]
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37
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Escudero R, Barral M, Pérez A, Vitutia MM, García-Pérez AL, Jiménez S, Sellek RE, Anda P. Molecular and pathogenic characterization of Borrelia burgdorferi sensu lato isolates from Spain. J Clin Microbiol 2000; 38:4026-33. [PMID: 11060064 PMCID: PMC87537 DOI: 10.1128/jcm.38.11.4026-4033.2000] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [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: 11/20/2022] Open
Abstract
Fifteen Borrelia burgdorferi sensu lato isolates from questing ticks and skin biopsy specimens from erythema migrans patients in three different areas of Spain were characterized. Four different genospecies were found (nine Borrelia garinii, including the two human isolates, three B. burgdorferi sensu stricto, two B. valaisiana, and one B. lusitaniae), showing a diverse spectrum of B. burgdorferi sensu lato species. B. garinii isolates were highly variable in terms of pulsed-field gel electrophoresis pattern and OspA serotype, with four of the seven serotypes described. One of the human isolates was OspA serotype 5, the same found in four of seven tick isolates. The second human isolate was OspA serotype 3, which was not present in ticks from the same area. Seven B. garinii isolates were able to disseminate through the skin of C3H/HeN mice and to cause severe inflammation of joints. One of the two B. valaisiana isolates also caused disease in mice. Only one B. burgdorferi sensu stricto isolate was recovered from the urinary bladder. One isolate each of B. valaisiana and B. lusitaniae were not able to disseminate through the skin of mice or to infect internal organs. In summary, there is substantial diversity in the species and in the pathogenicity of B. burgdorferi sensu lato in areas in northern Spain where Lyme disease is endemic.
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Affiliation(s)
- R Escudero
- Servicio de Bacteriología, Instituto de Salud Carlos III, 28220 Majadahonda, Madrid, Servicio de Investigación y Mejora Agraria, Departamento de Agricultura, Gobierno Vasco, 48160 Derio, Vizcaya, Spain
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Abstract
BACKGROUND When the myocardium is deprived of blood, a process of ischemia, infarction, and myocardial remodeling is initiated. Hypoxia-inducible factor 1 (HIF-1) is a transcriptional activator of vascular endothelial growth factor (VEGF) and is critical for initiating early cellular responses to hypoxia. We investigated the temporal and spatial patterns of expression of the alpha subunit of HIF-1 (HIF-1alpha) and VEGF in specimens of human heart tissue to elucidate the early molecular responses to myocardial hypoxia. METHODS Ventricular-biopsy specimens from 37 patients undergoing coronary bypass surgery were collected. The specimens were examined by microscopy for evidence of ischemia, evolving infarction, or a normal histologic appearance. The specimens were also analyzed with the reverse-transcriptase polymerase chain reaction for HIF-1alpha and VEGF messenger RNA (mRNA) expression and by immunohistochemical analysis for the location of the HIF-1alpha and VEGF proteins. RESULTS HIF-1alpha mRNA was detected in myocardial specimens with pathological evidence of acute ischemia (onset, <48 hours before surgery) or early infarction (onset, <24 hours before surgery). In contrast, VEGF transcripts were seen in specimens with evidence of acute ischemia or evolving infarction (onset, 24 to 120 hours before surgery). Patients with normal ventricles or evidence of infarction in the distant past had no detectable levels of either VEGF mRNA or HIF-1alpha mRNA. HIF-1alpha immunoreactivity was detected in the nuclei of myocytes and endothelial cells, whereas VEGF immunoreactivity was found in the cytoplasm of endothelial cells lining capillaries and arterioles. CONCLUSIONS An increase in the level of HIF-1alpha is an early response to myocardial ischemia or infarction. This response defines, at a molecular level, one of the first adaptations of human myocardium to a deprivation of blood. HIF-1alpha is a useful temporal marker of acutely jeopardized myocardium.
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Affiliation(s)
- S H Lee
- Division of Cardiothoracic Surgery, University of California, San Diego, 92103-8892, USA
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Oteo JA, Backenson PB, del Mar Vitutia M, García Moncó JC, Rodríguez I, Escudero R, Anda P. Use of the C3H/He Lyme disease mouse model for the recovery of a Spanish isolate of Borrelia garinii from erythema migrans lesions. Res Microbiol 1998; 149:39-46. [PMID: 9766208 DOI: 10.1016/s0923-2508(97)83622-4] [Citation(s) in RCA: 24] [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: 02/09/2023]
Abstract
A skin biopsy from a patient with erythema migrans was inoculated into C3H/He mice and into culture medium. A Borrelia garinii strain named Rio1 was isolated from both a direct BSK medium culture and a mouse ear-punch biopsy culture. Inoculating human tissue into mice produced a disease resulting in severe inflammation of the left tibio-tarsal joint, development of perivascular infiltrates as seen in ear-punch biopsies and the spread of spirochaetes along the skin, far from the inoculation site. The isolation of this strain confirms the circulation of this Borrelia species in Spain as a human pathogen, as well as its arthrogenicity in an animal model. The method used to recover strain Rio1 from human tissue is described as rapid and sensitive compared to direct inoculation of tissue into BSK medium.
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Affiliation(s)
- J A Oteo
- Servicio de Medicina Interna, Hospital de la Rioja, Logroño, Spain
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Escudero R, Halluska ML, Backenson PB, Coleman JL, Benach JL. Characterization of the physiological requirements for the bactericidal effects of a monoclonal antibody to OspB of Borrelia burgdorferi by confocal microscopy. Infect Immun 1997; 65:1908-15. [PMID: 9125579 PMCID: PMC175240 DOI: 10.1128/iai.65.5.1908-1915.1997] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [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: 02/04/2023] Open
Abstract
A confocal microscopy study was undertaken to characterize the bactericidal effects of the Fab fragments of CB2, an immunoglobulin G1kappa murine monoclonal antibody, to an epitope in the carboxy region of the outer surface protein B (OspB) of Borrelia burgdorferi. Simultaneous direct labeling of both fixed and live spirochetes with fluorochrome-labeled Fab-CB2 and 11G1, and an immunoglobulin Mkappa monoclonal antibody to OspA, showed that OspA and OspB seem to colocalize in dead spirochetes but do not appear to be physically associated when the organisms are alive. A polar bleb composed of a Fab-CB2-OspB complex, followed by incorporation of 11G1-OspA, precedes the formation of a spheroplast. The spheroplasts contain both OspA and OspB and are a terminal stage in the bactericidal process induced by Fab-CB2. Outer membrane destabilization by Fab-CB2, but not cell wall or cytoplasmic membrane alterations, was demonstrated experimentally by the sequential treatment of spirochetes with Fab-CB2 and monoclonal antibodies to flagellin and DnaK. The action of Fab-CB2 is epitope specific, as another monoclonal antibody to an epitope in the amino terminus of OspB was not bactericidal. The bactericidal effect of Fab-CB2 is not dependent on the induction of spirochetal proteases but is dependent on the presence of Ca2+ and Mg2+. Supplementation of Ca2(+)- and Mg2(+)-free medium with these cations restored the bactericidal effects of Fab-CB2. The mechanism by which a Fab fragment of an antibody destroys a bacterium directly may represent a novel form of antibody-organism interaction.
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Affiliation(s)
- R Escudero
- Department of Pathology, State University of New York, Stony Brook 11794, USA
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41
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Corral I, Quereda C, Guerrero A, Escudero R, Martí-Belda P. [Neurological manifestations in patients with sera positive for Borrelia burgdorferi]. Neurologia 1997; 12:2-8. [PMID: 9131908] [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: 02/04/2023] Open
Abstract
Eight years of case histories of patients with positive serum tests for Borrelia burgdorferi (Bb) are reviewed with the aims of analyzing the neurological manifestations involved and of assessing the value of serology in the diagnosis of neuroborreliosis (NB) in our clinical setting. Of the 105 cases with neurological manifestations that could be examined, 25 patients (24%) with other infections, neoplasms or other diseases had false positive serologies. Forty-one patients (39%) met the criteria for NB diagnosis: 26 had lymphocytic meningitis, 13 had polyradiculitis and 20 had cranial neuropathy. Spinal fluid cultures were positive in 43% of the patients on whom the test was performed, and all patients in this group who were treated with antibiotics improved. The other 39 patients (37%) had only neurological manifestations, which were not typical of NB (peripheral neuropathy, stroke, demyelinating disease, dementia or myelopathy), but for which no other etiology could be demonstrated. Spinal fluid serology was positive in 16% of those cases studied and none of those treated only with antibiotics improved. Among patients with both neurological manifestations and Bb positive serology, there were many false positives and cases with signs that were of dubious relation to infection by Bb; therefore, the prevalence of cases consistent with NB is low [corrected].
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Affiliation(s)
- I Corral
- Unidad de Enfermedades Infecciosas, Hospital Universitario Ramón y Cajal, Madrid
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Guerrero A, Escudero R, Martí-Belda P, Quereda C. [Frequency of the clinical manifestations of Lyme borreliosis in Spain]. Enferm Infecc Microbiol Clin 1996; 14:72-9. [PMID: 8714152] [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: 02/01/2023]
Abstract
INTRODUCTION There are differences in the clinical manifestations of Lyme borreliosis (LB) in different parts of the world. The aim of this work was to analyze its clinical manifestations in Spain. METHODS We evaluated by ELISA and IFI the sera of 1,500 patients with clinical suspicion of LB between January 1987 to February 1993. Spanish criteria of LB (amplified CDC criteria of LB for epidemiological purpuse) were used. Clinical and serological data were evaluated with the patients' physicians and other etiologies were reasonably excluded in accepted cases of LB. RESULTS Sixty-four patients of 138 with a positive serology (46%) met the LB criteria. Neurological manifestations were presented by 40 patients (62.5%) (in control group 23%, p < 0.05) cutaneous lesions by 20 patients (31%), articular manifestations by 18 patients (28%) (in control groups 56%; p < 0.05) and cardiac manifestations in two. Cutaneous manifestations included 17 erythema migrans, 2 acrodermatitis chronica atrophicans and 1 lymphocytoma). Artritis was present in 18 cases. Neurological manifestations included 16 cases of meningitis (2 with encephalitis), 11 of craneal neuropathy and 25 of peripheral neuropathy (13 of polyneuropathy). Cardiac manifestations acepted was 2 atrioventricular blockade. We detected 21% of false positive serology and in 33% of the positive cases, the LB criteria was not met. CONCLUSIONS The low percentage of cutaneous manifestations is probably due to the fact that this series consist predominantly of hospital patients. In Spain, as in the rest Europe the predominant manifestations are neurological, however artritis are not infrequent manifestations.
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Affiliation(s)
- A Guerrero
- Unidad de Enfermedades Infecciosas, Universidad de Alcalá de Henares, Madrid
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Corral I, Sanchís G, García-Ribas G, Quereda C, Escudero R, de Blas G. [Demyelinating polyradiculitis in neuro borreliosis]. Neurologia 1995; 10:110-13. [PMID: 7695939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Demyelinating neuropathy is considered a rare complication of Lyme borreliosis. We report a case of meningoradiculitis due to Borrelia burgdorferi in which the neurophysiological analysis showed evidence of restricted demyelinating involvement of the nerve roots and plexus, with no peripheral involvement or signs of distal axonal lesions. Lyme disease, therefore, can in fact be associated with demyelinating polyradiculitis with no peripheral nerve damage.
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Affiliation(s)
- I Corral
- Servicio de Neurología, Hospital Ramón y Cajal, Madrid
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Escudero R, Morales F, Lejay P. Temperature dependence of the antiferromagnetic state in URu2Si2 by point-contact spectroscopy. Phys Rev B Condens Matter 1994; 49:15271-15275. [PMID: 10010637 DOI: 10.1103/physrevb.49.15271] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Antela A, Guerrero A, Meseguer M, González-Sainz J, Escudero R, Pérez-Elías MJ, Quereda C, Hermida JM, Cobo J, Montilla P. [Community-acquired pneumonia: prospective study of 101 adult, immunocompetent patients for 1 year]. Enferm Infecc Microbiol Clin 1993; 11:525-30. [PMID: 8142501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND A one year prospective study was carried out to assess the etiology of community-acquired pneumonia (CAP), and also to know the incidence, characteristics and evolution of infection by Chlamydia pneumoniae; and the effectiveness of DNA probes in CAP due to Mycoplasma pneumoniae and Legionella. METHODS One hundred and ten patients with a diagnosis of CAP in the emergency department were studied. Serologic studies were performed, and also tests commonly used for the diagnosis of respiratory tract pathogens in respiratory samples, including serology and culture of Chlamydia pneumoniae and DNA probes for Mycoplasma pneumoniae and Legionella. RESULTS In 72 cases (71.3%) some pathogen was found and in 5 cases more than one microorganism was involved. The etiology was bacterial in 31% of the cases, with S. pneumoniae being the most frequent (19 cases). Forty percent of the cases were "atypical" pneumonias with 33 cases of M. pneumoniae and 5 by Chlamydia pneumoniae. Diagnostic data of viral pneumonia were found in 2 cases. DNA probes were not useful for the diagnosis of pneumonia by Legionella pneumophila and had low effectiveness (31.8%) in Mycoplasma pneumoniae CAP. CONCLUSIONS a) M. pneumoniae was the most frequent pathogen (33%). b) DNA probes for M. pneumoniae had low sensitivity in sputum (31.8%) and none in pharyngeal exudate. c) Acute infection by C. pneumoniae was diagnosed in 5 cases. Previous data of infection were recorded in 60.4% of the patients. d) Bacterial pneumonia (31%) was underestimated due to a low rate of bacteremic cases (7.9%) and the low number of positive cultures with definitive diagnostic value. e) The evolution was good except in two cases (death due to staphylococcal pneumonia with alcohol withdrawal syndrome and multiorganic failure by disseminated chicken-pox).
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Affiliation(s)
- A Antela
- Sección de Enfermedades Infecciosas, Hospital Ramón y Cajal, Madrid
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Asensi JM, Martínez AM, Guerrero A, Asensi V, Escudero R, de la Iglesia P, Arribas JM. [Epidemiologic study of Lyme disease in Asturias]. Enferm Infecc Microbiol Clin 1993; 11:420-3. [PMID: 8260513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND The aim of this study was to confirm the Sierra del Sueve (Asturias) as an endemic area for Lyme's disease and determine the seroprevalence of this disease in inhabitants of this and other zones of Asturias. METHODS A taxonomic study of 233 ticks in this county was carried out and the rate of infection by Borrelia burgdorferi was determined by culture in modified Kelly medium. Seroprevalence of Lyme's disease was studied by enzyme-immunoanalysis IgG-IgM in 150 inhabitants from several counties of Asturias. RESULTS The tick Ixodes ricinus is the most abundant species in the zone. All the cultures of Ixodes for Borrelia burgdorferi were negative. Among the farmers of the area of Sueve, seroprevalence of Lyme's disease was higher than in other population groups. CONCLUSIONS The Sierra del Sueve is an endemic area of Lyme's disease because of the appropriate vector I. ricinus and the super-population of Fallow deer. In this county the percentage of asymptomatic seropositives for this disease is much higher than that of other zones in Spain.
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Affiliation(s)
- J M Asensi
- Sección de Neurología, Hospital Central de Asturias, Oviedo
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Guerrero A, Quereda C, Martí-Belda P, Escudero R. [Lyme borreliosis: how is it manifested in Spain?]. Med Clin (Barc) 1993; 101:5-7. [PMID: 8315978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Lyme borreliosis is not usually diagnosed in Spanish patients since before 1987. The aim of this study was to know the clinical spectrum of infection by Borrelia burgdorferi in Spain by a prospective epidemiologic study. METHODS The period of collection of cases was from 1987 to 1989 and the follow-up period was of 2 years following diagnosis. Detection of serum antibodies was performed by indirect immunofluorescence and ELISA to patients with clinical suspicion of Lyme borreliosis established in 17 Spanish hospitals. The clinical and serologic data and the possibility of other disease which could justify the symptoms were evaluated with the doctor responsible for the patient. RESULTS Fifty-four patients with clinical manifestations and serologic data indicative of the disease and in whom other diagnosis were excluded were detected. Other diseases which could be the cause of the symptomatology were diagnosed in 26 patients with positive serology. Sixty-three percent of the patients had neurologic symptoms, 46% articular symptoms, 44% cutaneous symptoms and 9% cardiac symptoms. CONCLUSIONS Lyme borreliosis is not exceptional in Spain. Its clinical spectrum may be situated half way between American and European epidemiologic descriptions. Serology must be interpreted by the clinical manifestations.
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Affiliation(s)
- A Guerrero
- Sección de Enfermedades Infecciosas, Hospital Ramón y Cajal, Universidad de Alcalá de Henares, Madrid
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Escudero R, Antela A, Meseguer M, Guerrero A. [Are DNA probes useful for the diagnosis of Mycoplasma++ pneumoniae pneumonia?]. Med Clin (Barc) 1992; 99:355. [PMID: 1435008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Guerrero A, Quereda C, Escudero R, Cobo J, Morcillo R, Martí-Belda P. [Serologic diagnosis of Lyme disease. A pending problem]. Enferm Infecc Microbiol Clin 1991; 9:335-8. [PMID: 1932240] [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: 12/29/2022]
Abstract
We analyze the experience in serologic diagnosis of Lyme's borreliosis. From a total of 551 patients studied from 1987 to 1989, we further evaluate 80 cases with erythema chronicum migrans or a clinical diagnosis of Lyme's disease and positive serological tests. The techniques used were IFI, ELISA1 (Whittaker Bioproducts) and ELISA2 (MarDx Diagnostics). Serological tests results were evaluated in relation to clinical data. Five cases were excluded because of no-specific symptoms. There were 20 false-positive results, mainly due to other infections (HIV infection, tuberculosis, Mediterranean spotted fever and syphilis). Fifty-five patients were considered clinically of having Lyme's disease. IFI test was positive in 81.8% of all the 55 cases, ELISA2 in 58.4% of 53 cases tested and ELISA1 in 23% of 43 cases tested. Correlation between IFI and ELISA2 positive test was seen in 45% of cases. Specificity of all tests was higher than 97%. The study shows that sensitivity for all three techniques used was not optimal, and also there are some differences in their results. However, specificity was adequate.
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Affiliation(s)
- A Guerrero
- Sección de Enfermedades Infecciosas, Hospital Ramón y Cajal, Universidad de Alcalá de Henares, Madrid
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