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Barberá-Riera M, Barneo-Muñoz M, Gascó-Laborda JC, Bellido Blasco J, Porru S, Alfaro C, Esteve Cano V, Carrasco P, Rebagliato M, de Llanos R, Delgado-Saborit JM. Detection of SARS-CoV-2 in aerosols in long term care facilities and other indoor spaces with known COVID-19 outbreaks. Environ Res 2024; 242:117730. [PMID: 38000631 DOI: 10.1016/j.envres.2023.117730] [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] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 11/14/2023] [Accepted: 11/16/2023] [Indexed: 11/26/2023]
Abstract
Coronavirus outbreaks are likely to occur in crowded and congregate indoor spaces, and their effects are most severe in vulnerable long term care facilities (LTCFs) residents. Public health officers benefit from tools that allow them to control COVID-19 outbreaks in vulnerable settings such as LTCFs, but which could be translated in the future to control other known and future virus outbreaks. This study aims to develop and test a methodology based on detection of SARS-CoV-2 in aerosol samples collected with personal pumps that could be easily implemented by public health officers. The proposed methodology was used to investigate the levels of SARS-CoV-2 in aerosol in indoor settings, mainly focusing on LTCFs, suffering COVID-19 outbreaks, or in the presence of known COVID-19 cases, and targeting the initial days after diagnosis. Aerosol samples (N = 18) were collected between November 2020 and March 2022 in Castelló (Spain) from LTCFs, merchant ships and a private home with recently infected COVID-19 cases. Sampling was performed for 24-h, onto 47 mm polytetrafluoroethylene (PTFE) and quartz filters, connected to personal pumps at 2 and 4 L/min respectively. RNA from filters was extracted and SARS-CoV-2 was determined by detection of regions N1 and N2 of the nucleocapsid gene alongside the E gene using RT-PCR technique. SARS-CoV-2 genetic material was detected in 87.5% samples. Concentrations ranged ND-19,525 gc/m3 (gene E). No genetic traces were detected in rooms from contacts that were isolated as a preventative measure. Very high levels were also measured at locations with poor ventilation. Aerosol measurement conducted with the proposed methodology provided useful information to public health officers and contributed to manage and control 12 different COVID-19 outbreaks. SARS-CoV-2 was detected in aerosol samples collected during outbreaks in congregate spaces. Indoor aerosol sampling is a useful tool in the early detection and management of COVID-19 outbreaks and supports epidemiological investigations.
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Affiliation(s)
- M Barberá-Riera
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - M Barneo-Muñoz
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - J C Gascó-Laborda
- Epidemiology Division, Public Health Center, Castelló de la Plana, Spain
| | - J Bellido Blasco
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain; Epidemiology Division, Public Health Center, Castelló de la Plana, Spain; Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, FISABIO-Universitat Jaume I-Universitat de València, Av. Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3-5. Pabellón 11, 28029, Madrid, Spain
| | - S Porru
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - C Alfaro
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - V Esteve Cano
- Department of Inorganic and Organic Chemistry, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain
| | - P Carrasco
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain; Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, FISABIO-Universitat Jaume I-Universitat de València, Av. Catalunya 21, 46020, Valencia, Spain
| | - M Rebagliato
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain; Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, FISABIO-Universitat Jaume I-Universitat de València, Av. Catalunya 21, 46020, Valencia, Spain; Spanish Consortium for Research on Epidemiology and Public Health (CIBERESP), Av. Monforte de Lemos, 3-5. Pabellón 11, 28029, Madrid, Spain
| | - R de Llanos
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain.
| | - J M Delgado-Saborit
- Department of Medicine, Faculty of Health Sciences, Universitat Jaume I, Avenida de Vicent Sos Baynat s/n, 12071, Castellón de la Plana, Spain; Epidemiology and Environmental Health Joint Research Unit, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, FISABIO-Universitat Jaume I-Universitat de València, Av. Catalunya 21, 46020, Valencia, Spain.
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Dumschott K, Wuyts N, Alfaro C, Castillo D, Fiorani F, Zurita-Silva A. Morphological and Physiological Traits Associated with Yield under Reduced Irrigation in Chilean Coastal Lowland Quinoa. Plants (Basel) 2022; 11:plants11030323. [PMID: 35161304 PMCID: PMC8839172 DOI: 10.3390/plants11030323] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 06/02/2023]
Abstract
Quinoa (Chenopodium quinoa Willd.) is a genetically diverse crop that has gained popularity in recent years due to its high nutritional content and ability to tolerate abiotic stresses such as salinity and drought. Varieties from the coastal lowland ecotype are of particular interest due to their insensitivity to photoperiod and their potential to be cultivated in higher latitudes. We performed a field experiment in the southern Atacama Desert in Chile to investigate the responses to reduced irrigation of nine previously selected coastal lowland self-pollinated (CLS) lines and the commercial cultivar Regalona. We found that several lines exhibited a yield and seed size superior to Regalona, also under reduced irrigation. Plant productivity data were analyzed together with morphological and physiological traits measured at the visible inflorescence stage to estimate the contribution of these traits to differences between the CLS lines and Regalona under full and reduced irrigation. We applied proximal sensing methods and found that thermal imaging provided a promising means to estimate variation in plant water use relating to yield, whereas hyperspectral imaging separated lines in a different way, potentially related to photosynthesis as well as water use.
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Affiliation(s)
- Kathryn Dumschott
- Institute for Biology I, BioSC, RWTH Aachen University, 52056 Aachen, Germany;
- Institute of Bio- and Geosciences, Bioinformatics (IBG-4), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Nathalie Wuyts
- Institute of Bio- and Geosciences, Plant Sciences (IBG-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;
| | - Christian Alfaro
- Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; (C.A.); (D.C.)
- Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile
- Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile
| | - Dalma Castillo
- Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; (C.A.); (D.C.)
- Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile
- Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile
| | - Fabio Fiorani
- Institute of Bio- and Geosciences, Plant Sciences (IBG-2), Forschungszentrum Jülich GmbH, 52425 Jülich, Germany;
| | - Andrés Zurita-Silva
- Centro de Investigación Intihuasi (AZS), Instituto de Investigaciones Agropecuarias, La Serena 1722093, Chile; (C.A.); (D.C.)
- Centro de Investigación Rayentué (CA), Instituto de Investigaciones Agropecuarias, Rengo 2940000, Chile
- Centro de Investigación Quilamapu, Instituto de Investigaciones Agropecuarias, Chillán 3780000, Chile
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Arriagada O, Gadaleta A, Marcotuli I, Maccaferri M, Campana M, Reveco S, Alfaro C, Matus I, Schwember AR. A comprehensive meta-QTL analysis for yield-related traits of durum wheat ( Triticum turgidum L. var. durum) grown under different water regimes. Front Plant Sci 2022; 13:984269. [PMID: 36147234 PMCID: PMC9486101 DOI: 10.3389/fpls.2022.984269] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 08/18/2022] [Indexed: 05/13/2023]
Abstract
Abiotic stress strongly affects yield-related traits in durum wheat, in particular drought is one of the main environmental factors that have effect on grain yield and plant architecture. In order to obtain new genotypes well adapted to stress conditions, the highest number of desirable traits needs to be combined in the same genotype. In this context, hundreds of quantitative trait loci (QTL) have been identified for yield-related traits in different genetic backgrounds and environments. Meta-QTL (MQTL) analysis is a useful approach to combine data sets and for creating consensus positions for the QTL detected in independent studies for the reliability of their location and effects. MQTL analysis is a useful method to dissect the genetic architecture of complex traits, which provide an extensive allelic coverage, a higher mapping resolution and allow the identification of putative molecular markers useful for marker-assisted selection (MAS). In the present study, a complete and comprehensive MQTL analysis was carried out to identify genomic regions associated with grain-yield related traits in durum wheat under different water regimes. A total of 724 QTL on all 14 chromosomes (genomes A and B) were collected for the 19 yield-related traits selected, of which 468 were reported under rainfed conditions, and 256 under irrigated conditions. Out of the 590 QTL projected on the consensus map, 421 were grouped into 76 MQTL associated with yield components under both irrigated and rainfed conditions, 12 genomic regions containing stable MQTL on all chromosomes except 1A, 4A, 5A, and 6B. Candidate genes associated to MQTL were identified and an in-silico expression analysis was carried out for 15 genes selected among those that were differentially expressed under drought. These results can be used to increase durum wheat grain yields under different water regimes and to obtain new genotypes adapted to climate change.
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Affiliation(s)
- Osvin Arriagada
- Departamento de Ciencias Vegetales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Agata Gadaleta
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Bari, Italy
| | - Ilaria Marcotuli
- Department of Agricultural and Environmental Science, University of Bari Aldo Moro, Bari, Italy
| | - Marco Maccaferri
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
| | - Matteo Campana
- Department of Agricultural and Food Sciences, University of Bologna, Bologna, Italy
| | - Samantha Reveco
- Departamento de Ciencias Vegetales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christian Alfaro
- Centro Regional Rayentue, Instituto de Investigaciones Agropecuarias (INIA), Rengo, Chile
| | - Iván Matus
- Centro Regional Quilamapu, Instituto de Investigaciones Agropecuarias (INIA), Chillán, Chile
| | - Andrés R. Schwember
- Departamento de Ciencias Vegetales, Facultad de Agronomía e Ingeniería Forestal, Pontificia Universidad Católica de Chile, Santiago, Chile
- *Correspondence: Andrés R. Schwember,
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Garitaonaindía Y, Martínez M, Traseira C, Calvo V, Collazo A, Franco F, Nunez-Garcia B, Martín J, Aguado R, Alfaro C, Clemente MB, Morito A, Visedo G, Provencio M. P25.06 Malignant Pleural Mesothelioma: Patient Characteristics, Treatments and Outcomes from a Spanish Center. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.624] [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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5
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Lavilla Royo FJ, Alfaro C, Gonzalez O, Rojas M, Lorenzo I, Romero-Gonzalez G, Paloma M, Garcia-Fernandez N. FP317USE OF CORPORAL AND HEMODINAMIC BIOIMPEDANCE IN ACUTE KIDNEY INJURY. PROGNOSIS AND EFFICIENCY IN PATIENT MANAGEMENT. Nephrol Dial Transplant 2019. [DOI: 10.1093/ndt/gfz106.fp317] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Sanmamed MF, Perez-Gracia JL, Schalper KA, Fusco JP, Gonzalez A, Rodriguez-Ruiz ME, Oñate C, Perez G, Alfaro C, Martín-Algarra S, Andueza MP, Gurpide A, Morgado M, Wang J, Bacchiocchi A, Halaban R, Kluger H, Chen L, Sznol M, Melero I. Changes in serum interleukin-8 (IL-8) levels reflect and predict response to anti-PD-1 treatment in melanoma and non-small-cell lung cancer patients. Ann Oncol 2018; 28:1988-1995. [PMID: 28595336 DOI: 10.1093/annonc/mdx190] [Citation(s) in RCA: 287] [Impact Index Per Article: 47.8] [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: 12/25/2022] Open
Abstract
Background Surrogate biomarkers of efficacy are needed for anti-PD1/PD-L1 therapy, given the existence of delayed responses and pseudo-progressions. We evaluated changes in serum IL-8 levels as a biomarker of response to anti-PD-1 blockade in melanoma and non-small-cell lung cancer (NSCLC) patients. Patients and methods Metastatic melanoma and NSCLC patients treated with nivolumab or pembrolizumab alone or nivolumab plus ipilimumab were studied. Serum was collected at baseline; at 2-4 weeks after the first dose; and at the time-points of response evaluation. Serum IL-8 levels were determined by sandwich ELISA. Changes in serum IL-8 levels were compared with the Wilcoxon test and their strength of association with response was assessed with the Mann-Whitney test. Accuracy of changes in IL-8 levels to predict response was estimated using receiver operation characteristics curves. Results Twenty-nine melanoma patients treated with nivolumab or pembrolizumab were studied. In responding patients, serum IL-8 levels significantly decreased between baseline and best response (P <0.001), and significantly increased upon progression (P = 0.004). In non-responders, IL-8 levels significantly increased between baseline and progression (P = 0.013). Early changes in serum IL-8 levels (2-4 weeks after treatment initiation) were strongly associated with response (P <0.001). These observations were validated in 19 NSCLC patients treated with nivolumab or pembrolizumab (P = 0.001), and in 15 melanoma patients treated with nivolumab plus ipilimumab (P <0.001). Early decreases in serum IL-8 levels were associated with longer overall survival in melanoma (P = 0.001) and NSCLC (P = 0.015) patients. Serum IL-8 levels also correctly reflected true response in three cancer patients presenting pseudoprogression. Conclusions Changes in serum IL-8 levels could be used to monitor and predict clinical benefit from immune checkpoint blockade in melanoma and NSCLC patients.
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Affiliation(s)
- M F Sanmamed
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - J L Perez-Gracia
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,CIBERONC (Centro de Investigación Biomedica en Red de Cáncer)
| | - K A Schalper
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA.,Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - J P Fusco
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Gonzalez
- CIBERONC (Centro de Investigación Biomedica en Red de Cáncer).,Department of Biochemistry, Clínica Universidad de Navarra, Pamplona, Spain
| | - M E Rodriguez-Ruiz
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Oncología (CIBERONC), Spain
| | - C Oñate
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - G Perez
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - C Alfaro
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,CIBERONC (Centro de Investigación Biomedica en Red de Cáncer)
| | - S Martín-Algarra
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - M P Andueza
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - A Gurpide
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain
| | - M Morgado
- Department of Pathology, Yale University School of Medicine, New Haven, CT, USA
| | - J Wang
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - A Bacchiocchi
- Department of Dermatology, Yale University School of Medicine, New Haven, USA
| | - R Halaban
- Department of Dermatology, Yale University School of Medicine, New Haven, USA
| | - H Kluger
- Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - L Chen
- Department of Immunobiology, Yale University School of Medicine, New Haven, USA
| | - M Sznol
- Comprehensive Cancer Center Section of Medical Oncology, Yale University School of Medicine, New Haven, CT, USA
| | - I Melero
- Department of Oncology, Clínica Universidad de Navarra, Pamplona, Spain.,Department of Biochemistry, Clínica Universidad de Navarra, Pamplona, Spain.,Centro de Investigación Biomédica en Red de Oncología (CIBERONC), Spain
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Rodríguez-Ruiz M, Perez-Gracia J, Rodríguez I, Alfaro C, Oñate C, Pérez G, Gil-Bazo I, Benito A, Inogés S, López-Diaz de Cerio A, Ponz-Sarvise M, Resano L, Berraondo P, Barbés B, Martin-Algarra S, Gúrpide A, Sanmamed M, de Andrea C, Salazar A, Melero I. Combined immunotherapy encompassing intratumoral poly-ICLC, dendritic-cell vaccination and radiotherapy in advanced cancer patients. Ann Oncol 2018; 29:1312-1319. [DOI: 10.1093/annonc/mdy089] [Citation(s) in RCA: 80] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
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Rodríguez-Ruiz M, Perez-Gracia J, Rodriguez I, Alfaro C, Oñate C, Perez G, Inoges S, Resano L, Benito A, Barbes B, Ponz-Sarvisé M, Algarra SM, Gurpide A, Sanmamed M, De Andrea C, Echeveste J, Salazar A, Melero I. Combined immunotherapy encompassing intratumoral polyICLC, dendritic-cell vaccination and radiotherapy in advanced cancer patients. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx711.029] [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: 11/13/2022] Open
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Dousset L, Amici JM, Cribier B, Battistella M, Vergier B, Bailly JY, Cogrel O, Alfaro C, Ezzedine K, Beylot-Barry M. Étude prospective multicentrique de 2710 carcinomes basocellulaires : concordance entre agressivité clinique supposée et agressivité histologique. Ann Dermatol Venereol 2017. [DOI: 10.1016/j.annder.2017.09.145] [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] [Indexed: 11/16/2022]
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Sanmamed M, Perez-Gracia J, Fusco J, Oñate C, Perez G, Alfaro C, Martín-Algarra S, González A, Rodriguez-Ruiz M, Andueza M, Wang J, Bacchiocchi A, Halaban R, Kluger H, Sznol M, Melero I. Changes in serum IL8 levels reflect and predict response to anti-PD-1 treatment in melanoma and non-small cell lung cancer patients. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw378.03] [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] [Indexed: 11/14/2022] Open
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Alfaro C, Molina MJ, Moiron Fernandez-Felechosa JP, Mora JM, Martin-Moreno PL, Lavilla Royo J, Errasti P, Garcia-Fernandez N. SP417EFFICACY AND SAFETY OF BEMIPARINE AS ANTICOAGULANT IN BOTH HEMODIALYSIS AND ON-LINE HEMODIAFILTRATION (OL-HDF): A PROPOSAL OF DOSE RECOMMENDATION. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw170.24] [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: 11/13/2022] Open
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Gracia JP, Sanmamed M, Rua OC, Alfaro C, Oñate C, Martin-Algarra S, Perez G, Landázuri S, Gonzalez A, Gross S, Lopez IR, Muñoz-Calleja C, RodrÍguez-Ruiz M, Sangro B, Lopez-Picazo J, Rizzo M, Mazzolini G, Melero I. Serum Interleukin-8 Reflects Tumor Burden and Treatment Response Across Malignancies of Multiple Tissue Origins. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.85] [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: 11/13/2022] Open
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Gurpide A, Lopez-Picazo J, Alfaro C, RodrÍguez-Ruiz M, Perez Gracia J, Fernandez de Sanmamed M, Benito A, Cano D, Gonzalez A, Rodriguez Lopez I, Fusco J, Rodriguez J, Martin Algarra S, Martínez-Monge R, Melero I. Phase Ii Study with Immunotherapy with Dendritic Cells (Dc) Combined with Intratumoral Hiltonol in Patients with Advanced Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu342.31] [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: 11/13/2022] Open
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Rodriguez J, Vera R, Pardo F, Herrera J, Chopitea A, Alfaro C, Hernández García I, Garzón C, Viudez Berral A, Benito A, Gonzalez A, RodrÍguez-Ruiz M, Fernandez de Sanmamed M, Fusco J, Oñate C, Ochoa C, Melero I, Perez Gracia J. Randomized Phase Ii Trial with Dendritic Cell (Dc) Immunotherapy in Patients with Colorectal Carcinoma and Liver Metastasis Following Complete Resection and Adjuvant Chemotherapy. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu342.29] [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: 11/13/2022] Open
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Alfaro C, Oñate C, Rodríguez A, Pérez-Gracia J, Fernández de Sanmamed M, Melero I. Células dendríticas especializadas en presentación de antígenos exógenos a linfocitos T citotóxicos. An Sist Sanit Navar 2013; 36:519-37. [DOI: 10.4321/s1137-66272013000300016] [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] [Indexed: 11/11/2022]
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Alfaro C, Veloso C, Torres-ContreraS H, Solis R, Canals M. Thermal niche overlap of the corner recluse spider Loxosceles laeta (Araneae; Sicariidae) and its possible predator, the spitting spider Scytodes globula (Scytodidae). J Therm Biol 2013. [DOI: 10.1016/j.jtherbio.2013.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Canals M, Figueroa D, Alfaro C, Kawamoto T, Torres-Contreras H, Sabat P, Veloso C. Effects of diet and water supply on energy intake and water loss in a mygalomorph spider in a fluctuating environment of the central Andes. J Insect Physiol 2011; 57:1489-1494. [PMID: 21821038 DOI: 10.1016/j.jinsphys.2011.07.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Revised: 07/20/2011] [Accepted: 07/22/2011] [Indexed: 05/31/2023]
Abstract
The metabolic and water evaporation strategies in spiders may be part of a set of physiological adaptations to tolerate low or unpredictable food availability, buffering spiders against environmental fluctuations such as those of the high mountains of the central Andes. The aim of this study is to analyze experimentally the variations in metabolic rate and the rate of evaporative water with food and/or water restriction in a high mountain mygalomorph spider population (Paraphysa sp.). We found that the low metabolism of this spider was not affected by water restriction, but its metabolism was depressed after 3 weeks of food deprivation. The spider did not show seasonal metabolic changes but it presented seasonal changes in the rate of evaporative water loss at high temperatures. Females with egg sacs reduced their metabolic rate and evaporative water at high temperatures. These findings constitute a set of possible adaptations to a highly fluctuating Mediterranean environment, which is completely covered with snow for many months and then progresses rapidly to a very dry climate with high temperatures.
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Affiliation(s)
- M Canals
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Chile.
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Velosa D, Casiano C, Alvarado E, Chanis J, Ayala R, Alfaro C. Obwegeser's BSSO modification: a retrospective study in 200 patients. Int J Oral Maxillofac Surg 2011. [DOI: 10.1016/j.ijom.2011.07.600] [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: 10/16/2022]
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19
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Navarro-Llopis V, Vacas S, Sanchis J, Primo J, Alfaro C. Chemosterilant bait stations coupled with sterile insect technique: an integrated strategy to control the Mediterranean fruit fly (Diptera: Tephritidae). J Econ Entomol 2011; 104:1647-1655. [PMID: 22066195 DOI: 10.1603/ec10448] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
During 2008 and 2009, the efficacy of the combination of two Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), control techniques, sterile insect technique (SIT) and a chemosterilant bait station system (Adress), was tested in three crops: citrus (Citrus spp.), stone fruit (Prunus spp.), and persimmon (Diospyros spp.). Two thousand sterile males were released per ha each week in the whole trial area (50,000 ha, SIT area). For 3,600 ha, within the whole trial area, 24 Adress traps per ha were hung (SIT + Adress area). Ten SIT + Adress plots and 10 SIT plots in each of three different fruit crops were arranged to assess Mediterranean fruit fly population densities and fruit damage throughout the trial period. To evaluate the efficacy of each treatment, the male and female populations were each monitored from August 2008 to November 2009, and injured fruit was assessed before harvest. Results showed a significant reduction in the C. capitata population in plots treated with both techniques versus plots treated only with the SIT. Likewise, a corresponding reduction in the percentage of injured fruit was observed. These data indicate the compatibility of these techniques and suggest the possibility of using Adress coupled with SIT to reduce C. capitata populations in locations with high population densities, where SIT alone is not sufficiently effective to suppress fruit fly populations to below damaging levels.
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Affiliation(s)
- V Navarro-Llopis
- Centro de Ecología Química Agrícola-Instituto Agroforestal del Mediterráneo, Universidad Politécnica de Valencia, Edificio 6C, Camino de Vera s/n 46022, Valencia, Spain.
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Ochoa M, Fioravanti J, Duitman E, Medina-Echeverz J, Palazon A, Arina A, Dubrot J, Alfaro C, Morales-Kastresana A, Murillo O, Hervas-Stubbs S, Prieto J, Berraondo P, Melero I. PS2-082 Immunological effects of gene transfer with the sushi domain of IL-15Rα and a chimeric protein consisting of IL-15 fused to apolipoprotein A-1. Cytokine 2011. [DOI: 10.1016/j.cyto.2011.07.245] [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: 10/17/2022]
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21
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Calero N, Alfaro C, García C, Berjano M, Lluch Á, Muñoz J. Rheological and Microstructural Behavior of a Model Concentrated Fabric Softener. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Abstract
Cutaneous sinus tract on the head and neck area in a child may originate from dental disease. A high degree of clinical suspicion and complementary tests are often needed, as the diagnosis is usually not straight forward. Anatomical correlation is also useful in tracing the affected tooth or teeth. We present the case of a boy with a facial sinus tract that originated from periapical abscesses of maxillary molars.
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Affiliation(s)
- F Mardones
- Dermatology Department, Hospital Clínico, Universidad de Chile, Santiago, Chile.
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Vacas S, Alfaro C, Navarro-Llopis V, Primo J. The first account of the mating disruption technique for the control of California red scale, Aonidiella aurantii Maskell (Homoptera: Diaspididae) using new biodegradable dispensers. Bull Entomol Res 2009; 99:415-423. [PMID: 19159501 DOI: 10.1017/s0007485308006470] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Semiochemical-based pest management programs have been increasingly used to provide environmentally friendly methods for the control of major insect pests. The efficacy of the mating disruption technique has been demonstrated for several moth pests. Unfortunately, not many experiments on mating disruption to control diaspididae species have been documented. In this work, biodegradable dispensers for mating disruption with increasing pheromone loads were used in order to study the potential of this technique for the control of Aonidiella aurantii Maskell. Field trial results demonstrated that dispensers loaded with 50 mg (a.i.) (20 g ha-1) and 100 mg (a.i.) (40 g ha-1) of sex pheromone were the most suitable, achieving significant reductions in male catches, compared to an untreated plot. In treated plots, virtually a 70% reduction in damage to fruit was recorded. Pheromone release profiles of all the dispensers were also studied under field conditions. We found that emission values >250 microg day-1 were the most suitable. This study suggests a new biodegradable dispenser capable of interfering with normal A. aurantii chemical communication. The use of mating disruption as a control method against A. aurantii is discussed.
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Affiliation(s)
- S Vacas
- Centro de Ecología Química Agrícola-Instituto Agroforestal del Mediterráneo, Universidad Politécnica de Valencia, Edificio 6C, Camino de Vera s/n 46022, Valencia, Spain
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Arina A, Murillo O, Dubrot J, Azpilikueta A, Gabari I, Perez-Gracia JL, Alfaro C, Berasain C, Prieto J, Ferrini S, Hervas-Stubbs S, Melero I. Interleukin-15 liver gene transfer increases the number and function of IKDCs and NK cells. Gene Ther 2008; 15:473-83. [PMID: 18273053 DOI: 10.1038/gt.2008.4] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The surface phenotype CD3-NK1.1+DX5+CD11c(int)B220+GR1- has been recently ascribed to a novel subset of mouse leukocytes termed interferon (IFN)-producing killer dendritic cells (IKDCs) that shares functions with natural killer (NK) cells and DCs. Interleukin-15 (IL-15) is critical for NK cells but its relationship with IKDC remained unexplored. An expression cassette encoding human IL-15 (hIL-15) has been transferred by hydrodynamic injection into the liver of mice, resulting in transient expression of the cytokine that is detectable during the first 48 h. hIL-15 hydrodynamic gene transfer resulted in an expansion of NK cells and IKDCs. Relative expansions of IKDCs were more dramatic in the IL-15 gene-transferred hepatic tissue than in the spleen. Adoptively transferred DX5+ cells comprising both NK cells and IKDCs proliferated in response to hydrodynamic injection of hIL-15, indicating that quantitative increases are at least in part the result of proliferation from already differentiated cells. Expansion is accompanied by enhanced cytolytic activity and increased expression of TRAIL and CD137 (4-1BB), without augmenting interferon-gamma production. The effects of a single hydrodynamic injection surpassed those of two intraperitoneal doses of the recombinant protein. The novel functional link between circulating IL-15 and IKDCs opens new possibilities to study the biology and applications of this minority cell subset.
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Affiliation(s)
- A Arina
- Gene Therapy Unit, Centro de Investigación Médica Aplicada (CIMA), Universidad de Navarra, Pamplona, Spain
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25
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Abstract
Renal cell carcinoma presents several unique features, which distinguish it from other tumours. The increase in survival that has been described in patients with renal cell carcinoma following nephrectomy breaks a classical rule of oncology, which states that surgery of the primary tumour has no role in the treatment of patients with advanced disease. Together with melanoma, it is the only tumour in which immunomodulatory treatments with drugs such as interleukin-2 produces a clinical benefit to patients. In randomized trials treatment of metastatic renal cell carcinoma with high dose interleukin-2 has confirmed its ability to induce long-term complete responses, which in practice can be considered equivalent to cure. Lastly, renal cell carcinoma is being used as a clinical model to demonstrate the role of several targeted treatments, with over 30 novel agents under development. It has been the first tumour type in which treatment with angiogenesis inhibitors has shown a clinical benefit. This article reviews the most relevant aspects of renal cell carcinoma, including epidemiology, prognostic factors, clinical presentation, molecular bases and the current status of development of the most relevant novel treatments for this disease.
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Affiliation(s)
- J L Pérez-Gracia
- Departamento de Onología Médica, Clínica Universitaria de Navarra, Universidad de Navarra, Pamplona, Spain.
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26
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Dubrot J, Azpilikueta A, Alfaro C, Murillo O, Arina A, Berraondo P, Hervás-Stubbs S, Melero I. Absence of surface expression of CD137 (4-1BB) on Myeloid-derived suppressor cells. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0213-9626(07)70081-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Fernández A, Marcén R, Pascual J, Galeano C, Ocaña J, Arellano EM, Alfaro C, Villafruela JJ, Burgos FJ, Ortuño J. Conversion From Calcineurin Inhibitors to Everolimus in Kidney Transplant Recipients With Malignant Neoplasia. Transplant Proc 2006; 38:2453-5. [PMID: 17097965 DOI: 10.1016/j.transproceed.2006.08.016] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Cancer has been reported to be more common among kidney transplant recipients than waiting-list patients or the general population. Use of anticalcineurin agents and azathioprine are relevant risk factors. Nine renal allograft recipients (seven men and two women) of mean age 67.6 (55-77) years and mean time after transplantation of 30.7 (58-216) months were switched to everolimus-based immunosuppression because of the presence of biopsy-proven malignancies (eight patients) or neurological tacrolimus toxicity (one patient). One patient with posttransplant lymphoproliferative disease also received chemotherapy with a good evolution at 6 months. He showed an initial increase in the protein to creatinine ratio (peak 3.3 mg/mg at 3 months) that was controlled by increasing the enalapril dose. One patient with skin cancer and severe atheromatosis (baseline SCr 2.5 mg/dL, creatinine clearance 17 mL/min, and protein to creatinine ratio 3.2 mg/mg), had cyclosporine and everolimus overlapped for 25 days, showing a continued poor evolution requiring dialysis initiation at 3 months after switch. The other six patients with recurrent skin cancers had good cancer evolution, with no new skin tumors and regression of skin lesions in three, including not biopsied actinic keratosis. Sudden switching from calcineurin inhibitors to everolimus is safe and may be used in long-term transplant recipients with malignancies. In patients with advanced chronic nephropathy this approach appeared to be less beneficial.
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Affiliation(s)
- A Fernández
- Department of Nephrology, Hospital Ramón y Cajal, Madrid, Spain.
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28
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Alfaro C, Murillo O, Tirapu I, Azpilicueta A, Huarte E, Arina A, Arribillaga L, Pérez-Gracia JL, Bendandi M, Prieto J, Lasarte JJ, Melero I. [The immunotherapy potential of agonistic anti-CD137 (4-1BB) monoclonal antibodies for malignancies and chronic viral diseases]. An Sist Sanit Navar 2006; 29:77-96. [PMID: 16670731 DOI: 10.4321/s1137-66272006000100007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Pharmacological intervention on the immune system to achieve more intense lymphocyte responses has potential application in tumour immunology and in the treatment of chronic viral diseases. Immunostimulating monoclonal antibodies are defined as a new family of drugs that augment cellular immune responses. They interact as artificial ligands with functional proteins of the immune system, either activating or inhibiting their functions. There are humanized monoclonal antibodies directed to the inhibitory receptor CD152 (CTLA-4) that are being tested in clinical trials with evidence of antitumoural activity. As a drawback, anti-CTLA-4 monoclonal antibodies induce severe autoimmunity reactions in a fraction of the patients. Anti-CD137 monoclonal antibodies have the ability to induce potent immune responses mainly mediated by cytotoxic lymphocytes with the result of frequent complete tumour eradications in mice. Comparative studies in experimental models indicate that the antitumour activity of anti-CD137 monoclonal antibodies is superior to that of anti-CD152. CD137 (4-1BB) is a leukocyte differentiation antigen selectively expressed on the surface of activated T and NK lymphocytes, as well as on dendritic cells. Monoclonal antibodies acting as artificial stimulatory ligands of this receptor (anti-CD137 agonist antibodies) enhance cellular antitumoural and antiviral immunity in a variety of mouse models. Paradoxically, anti-CD137 monoclonal antibodies are therapeutic or preventive in the course of model autoimmune diseases in mice. In light of these experimental results, a number of research groups have humanized antibodies against human CD137 and early clinical trials are about to start.
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MESH Headings
- Animals
- Antibodies, Monoclonal/therapeutic use
- Antigens, CD/immunology
- Antigens, Differentiation/immunology
- Antineoplastic Agents/therapeutic use
- Autoimmunity
- Bone Marrow Transplantation/immunology
- CTLA-4 Antigen
- Cancer Vaccines/immunology
- Cancer Vaccines/therapeutic use
- Chronic Disease
- Clinical Trials as Topic
- Clinical Trials, Phase II as Topic
- Clinical Trials, Phase III as Topic
- Cytokines/immunology
- Humans
- Immunotherapy
- Mice
- Mice, Transgenic
- Neoplasms/immunology
- Neoplasms/therapy
- Neoplasms, Experimental/drug therapy
- Neoplasms, Experimental/immunology
- Receptors, Nerve Growth Factor/immunology
- Receptors, Tumor Necrosis Factor/immunology
- Transplantation, Homologous
- Tumor Cells, Cultured
- Tumor Necrosis Factor Receptor Superfamily, Member 9
- Viral Vaccines/immunology
- Viral Vaccines/therapeutic use
- Virus Diseases/immunology
- Virus Diseases/therapy
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Affiliation(s)
- C Alfaro
- Area de Terapia Génica y Hepatología, Centro de Investigación Médica Aplicada, Pamplona
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29
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Román B, Alfaro C, Torres AM, Moreno MT, Satovic Z, Pujadas A, Rubiales D. Genetic relationships among Orobanche species as revealed by RAPD analysis. Ann Bot 2003; 91:637-642. [PMID: 12714362 PMCID: PMC4242346 DOI: 10.1093/aob/mcg060] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
RAPD markers were used to study variation among 20 taxa in the genus OROBANCHE: O. alba, O. amethystea, O. arenaria, O. ballotae, O. cernua, O. clausonis, O. cumana, O. crenata, O. densiflora, O. foetida, O. foetida var. broteri, O. gracilis, O. haenseleri, O. hederae, O. latisquama, O. mutelii, O. nana, O. ramosa, O. rapum-genistae and O. santolinae. A total of 202 amplification products generated with five arbitrary RAPD primers was obtained and species-specific markers were identified. The estimated Jaccard's differences between the species varied between 0 and 0.864. The pattern of interspecific variation obtained is in general agreement with previous taxonomic studies based on morphology, and the partition into two different sections (Trionychon and Orobanche) is generally clear. However, the position in the dendrogram of O. clausonis did not fit this classification since it clustered with members of section TRIONYCHON: Within this section, O. arenaria was relatively isolated from the other members of the section: O. mutelii, O. nana and O. ramosa. Within section Orobanche, all O. ramosa populations showed a similar amplification pattern, whereas differences among O. crenata populations growing on different hosts were found. Orobanche foetida and O. densiflora clustered together, supporting the morphological and cytological similarities and the host preferences of these species.
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Affiliation(s)
- B Román
- Departamento de Mejora y Agronomía CIFA-Alameda del Obispo, Apdo 3092, 14080 Córdoba, Spain.
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30
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Surumay-Vílchez Q, Alfaro C. [Cryptosporidium spp. in farms in the eastern region of Venezuela]. Invest Clin 2000; 41:245-50. [PMID: 11155766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Cryptosporidiosis is caused by the coccidian protozoa Cryptosporidium. It is the most worldwide prevalent pathogen associated with diarrhea in young cattle and usually is caused by C. parvum which is also responsible of infections in humans, specially in immunocompromised patients. Faecal samples from 75 young cattle aged between 2 to 20 weeks, were collected in four Western Dairy farms of Venezuela and screened for the presence of Cryptosporidium oocysts. Positive samples were detected in 22 animals (29.3%). Results of this current study demonstrate that Cryptosporidium spp. is frequently involved in the aetiology of calf neonatal diarrhea in this region, and adults carriers seem to play an important role as a source of infection.
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Affiliation(s)
- Q Surumay-Vílchez
- Fondo Nacional de Investigaciones Agropecuarias CIAE-Zulia, Maracaibo, Estado Zulia, Venezuela
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31
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Ozguler A, Alfaro C, Bonniaus G, Renders P, Blot P, Brodin M, Lombrail P. [Social problems encountered during prenatal care in a Paris maternity ward]. J Gynecol Obstet Biol Reprod (Paris) 1998; 27:389-95. [PMID: 9690157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In 1993, about 2,600 children are born in Robert Debré Hospital (RDH), a hospital specialized in pediatrics and obstetrics located in Paris. One hundred and seventy nine of the mothers contacted the hospital social service during pregnancy. The main goal of this study was to describe the social problems encountered by these women and the solutions proposed by the social service of RDH. The second aim was to describe the socio-demographic profile and medical problems of this population. At first contact, 45% of the women had no social coverage, and only 18% had a steady job. Most social problems were related to administrative procedures. Financial and housing problems were more difficult to solve in this context. These figures reflect the growing problem of precarity, with its consequences. A hospital social service is not the right place to solve these very complex problems. The most worrisome point is that the living conditions of newborn children are often unknown after delivery.
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Affiliation(s)
- A Ozguler
- Service de Santé Publique, Hôpital Robert-Debré, AP-HP, Paris
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32
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Fernändez A, Santos J, Sánchez MA, Alfaro C. [Rhodococcus equi pneumonia in a patient with AIDS. Primary resistance to imipenem]. Enferm Infecc Microbiol Clin 1994; 12:471-2. [PMID: 7811779] [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: 01/27/2023]
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de Pablos J, Barrios C, Alfaro C, Cañadell J. Large experimental segmental bone defects treated by bone transportation with monolateral external distractors. Clin Orthop Relat Res 1994:259-65. [PMID: 8118984] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Monolateral frames were applied to five dogs and ten lambs for treatment of large segmental bone defects (LSBD) surgically induced in one of their femoral diaphyses. Reconstruction was attempted by bone transport, as developed by Ilizarov. Monolateral frames were used to minimize the draw-backs of Ilizarov's circular device. Radiographic, computed tomographic, and histologic studies were performed. The skin and soft tissues were not a major obstacle for the longitudinal migration of the screws during bone transport. Four months after the operations, healing and remodeling of the bone defect was always satisfactory. Histologically, the repair of the lengthened segment followed an intramembranous ossification pattern in its central areas and in the periphery as well. At the end of the experiment, the new induced bone had a virtually normal diaphyseal bone appearance. Bone transport for the treatment of experimental LSBD can be completed in monolateral frames.
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Affiliation(s)
- J de Pablos
- Department of Orthopedic Surgery, Navarra University Clinic, Pamplona, Spain
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35
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Ascunce N, del Moral A, Murillo A, Alfaro C, Apesteguia L, Ros J, Abascal L, Aizcorbe M, Domínguez F, Iñigo JJ. Early detection programme for breast cancer in Navarra, Spain. Eur J Cancer Prev 1994; 3 Suppl 1:41-8. [PMID: 8130726 DOI: 10.1097/00008469-199401001-00007] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- N Ascunce
- Screening Programme, Health Department of the Government of Navarra, Spain
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36
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Lombrail P, Alfaro C, Vitoux-Brot C, Brodin M, Bourrillon A, Beaufils F. [Analysis of emergency recruitment in a pediatric hospital. Effect on the organization of available care]. Arch Fr Pediatr 1993; 50:313-7. [PMID: 8379818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND The increasing demand on the emergency wards of pediatric hospitals raise the question of whether the services delivered are adequate for the explicit and implicit needs of outpatients. POPULATION AND METHODS The files of all the 334 children consulting at the medical emergency ward of Robert-Debré hospital in Paris between April 19 and April 26, 1989 were analyzed. Socio-demographic data, reasons for visit and final diagnosis were collected. Each outpatient was assigned to one of 3 categories: 1) severe emergency; 2) simple emergency; 3) consultation. Further data on the events leading to the visit were obtained by a second survey covering 213 children seen between May 11 and May 14, 1991 from 8 hrs to 20 hrs. RESULTS The mean age of the 334 children in the first survey was 3.2 years. Half of the mothers were unemployed. Half of the families was of foreign extraction. 3.4% of the children had no social insurance. Ten percent of the patients were frequent users of the emergency ward. Infectious diseases were the most prevalent reason for visit. Severe emergencies were 28%, simple emergencies 44% and consultations 28%. Among the 213 children of the second survey, half of the families had seen (43%) or attempted to see (7%) a physician outside the hospital before coming to the emergency ward. CONCLUSION The needs of the children could best be met by performing a true medico-social examination at the medical emergency ward, enhancing access for children and revitalizing a partnership with the community to provide continuous care for those children in need of it.
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Affiliation(s)
- P Lombrail
- Service de Santé Publique et Comité des Urgences, Hôpital Robert-Debré, Paris
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37
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Alfaro C, Brodin M, Lombrail P, Fontaine A, Gottot S. [Causes and modalities of pediatric ambulatory care in ten hospitals in the Ile-de-France region]. Arch Fr Pediatr 1992; 49:785-91. [PMID: 1300966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND The increasing shortage of financial resources requires optimal use of hospital care by patients. However, the studies carried out to date in France have been limited to patients who are hospitalized, and have not included those seen as out-patients. POPULATION AND METHODS All patients seen as out-patients in 10 hospitals in the Paris district (3 pediatric hospitals and 7 pediatric departments located in hospitals for adults and children), during the week of 19-26 April 1989, were given a questionnaire on the age, sex, nationality, socio-cultural and economic features of the family, history of earlier medical visits or admissions, the existence of pediatrician or practitioner, and the means and time taken to get to the hospital. Medical diagnosis was established for each patient following the WHO International Classification of Diseases (9th edition). RESULTS 2,365 out of 2,675 questionnaires were usable. The main features were: 50% of patients were less than 3 years old, 55% were of French origin; 78% belonged to families with relatively low socio-economic status. Both parents had professional activities in 49% of families, 7% of mothers did not speak or write French. The ratio of patients aged less than 3 years admitted to the emergency ward was higher than the average. The most frequent diseases presented by these patients were respiratory (23%), infectious (14%), gastro-intestinal (10%) and neurological (7%); 14% of the patients were seen for symptoms that could not be assigned to a specific disease. 39% of patients were seen in out-patient clinics and 61% in emergency wards. 40% were sent by a health professional to out-patient clinics and only 25% to emergency wards. CONCLUSIONS Despite the fact that this study is subject to particular conditions, i.e., relative frequency of infectious diseases due to seasonal causes, it suggests that the hospital is becoming the primary source of health care with an increasing percentage of patients seen in "emergency", even though this emergency is often more apparent than real. Health care networks should be established.
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Affiliation(s)
- C Alfaro
- Département de Santé Publique, Faculté Xavier-Bichat, Université Paris VII
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38
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Alfaro C, Sharma OP, Navarro L, Glovsky MM. Inverse correlation of expiratory lung flows and sputum eosinophils in status asthmaticus. Ann Allergy 1989; 63:251-4. [PMID: 2774309] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Seventy-six consecutive patients admitted to Los Angeles County General Hospital with acute asthma were studied. Blood and sputum smears for cell counts were obtained on all patients within 12 hours of admission. Fifty-one (67%) patients were able or willing to perform spirometry and flow/volume curves in the first 24 hours of hospitalization. The severity of airway obstruction as assessed by forced expiratory volume in one second (FEV1), maximum mid-expiratory flow rate (MMFR), and forced vital capacity (FVC) was compared with blood and sputum eosinophil counts. Although there was no relation between the blood eosinophilia and airway obstruction, an inverse relationship between the number of eosinophils in the sputum and airway flow rates was observed. Higher percentages of sputum eosinophils were associated with diminished flow rates. We believe that sputum eosinophils may be helpful in the initial assessment of severe bronchial asthma.
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Affiliation(s)
- C Alfaro
- Asthma Clinic and Research Center, University of Southern California School of Medicine, Los Angeles
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Ratto D, Alfaro C, Sipsey J, Glovsky MM, Sharma OP. Are intravenous corticosteroids required in status asthmaticus? JAMA 1988; 260:527-9. [PMID: 3385910] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Seventy-seven patients with status asthmaticus were prospectively studied to compare oral with intravenous methylprednisolone. Patients were given methylprednisolone, either 160 or 320 mg orally or 500 or 1000 mg intravenously, daily in equally divided doses. They were randomly assigned to either group on a daily sequential basis. Spirometry was performed within one hour of the initial dose of steroids. The mean presenting forced expiratory volume in 1 s was 26% of the predicted value. Spirometry was then repeated every six hours for the first 24 hours and then every eight to 12 hours until discharge or 72 hours, whichever occurred first. There were no significant differences in the incidence of respiratory failure, forced expiratory volume in 1 s, days of hospitalization, rate of improvement in pulmonary function, or side effects. No patient who went into respiratory failure did so more than three hours after receiving the initial dose of steroids. We conclude that oral methylprednisolone is safe and effective in the treatment of status asthmaticus.
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Affiliation(s)
- D Ratto
- Department of Pulmonary Medicine, Los Angeles County, University of Southern California Medical Center 90033
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Alfaro C, Rodriquez Pereda S, Sharma OP. Blood helper/suppressor lymphocyte ratio in sarcoidosis. Asian Pac J Allergy Immunol 1986; 4:107-9. [PMID: 2948514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The blood helper/suppressor ratio was measured in 38 patients with biopsy-proved sarcoidosis. There was no relationship between this peripheral helper/suppressor ratio and the activity of the granulomatous process. This test needs further evaluation before its routine use in assessing activity in sarcoidosis.
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Sharma OP, Alfaro C. Hypercalciuria and renal stones in a sarcoidosis patient treated by extracorporeal shockwave lithotripsy. Sarcoidosis 1986; 3:7-9. [PMID: 3575918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A case of chronic pulmonary sarcoidosis and hypercalciuria complicated by bilateral renal stones is reported. Urinary stones were pulverized by extracorporeal shockwave lithotripsy (ESWL) as the patient had declined any surgical procedure. The use of ESWL in conjunction with corticosteroids appears to be the treatment of choice in the management of renal stones secondary to abnormalities of calcium metabolism in sarcoidosis.
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Esguep A, Belvederessi M, Alfaro C. Benign cementoblastoma. (Report of an atypical case). J Oral Med 1983; 38:99-102. [PMID: 6579250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ternay AL, Baack JC, Chu SSC, Napoleone V, Martin G, Alfaro C. The structure of thianthrenium biscarbethoxymethylide and the corresponding sulfoxide. J Heterocycl Chem 1982. [DOI: 10.1002/jhet.5570190425] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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