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Galvez-Nino M, Ruiz R, Lozano S, Roque K, Coanqui O, Valdivieso N, Olivera M, Mas L. P07.02 Real World data of Advanced Non-Small Cell Lung Cancer Patients EGFR Mutated from a Peruvian Cohort. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Martín C, Enrico D, Mas L, Patane AK, Arrieta O, Soria T, Cardona AF, Ruiz‐Patiño A, Ruiz R, Rioja P, Lozano S, Zatarain‐Barrón ZL, Barrón F, Puparelli C, Tsou F, Corassa MP, Freitas HC, Cordeiro de Lima VC, Rojas L, Ordóñez‐Reyes C, Corrales L, Sotelo C, Rodríguez J, Ricaurte L, Ávila J, Archila P, Rosell R, Cuello M, Remon J. Characteristics and outcomes of thymomas in Latin America: Results from over 10 years of experience (CLICaP-LATimus). Thorac Cancer 2021; 12:1328-1335. [PMID: 33729676 PMCID: PMC8088938 DOI: 10.1111/1759-7714.13901] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/06/2021] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Thymomas are a group of rare neoplasms of the anterior mediastinum. The objective of this study was to describe the demographics, clinical characteristics and treatment approaches in Latin America. METHODS This was a retrospective multicenter cohort study including patients with histologically proven thymomas diagnosed between 1997 and 2018. Demographics, clinicopathological characteristics and therapeutic outcomes were collected locally and analyzed in a centralized manner. RESULTS A total of 135 patients were included. Median age at diagnosis was 53 years old (19-84), 53.3% (n = 72) of patients were female and 87.4% had an ECOG performance score ranging from 0-1. A total of 47 patients (34.8%) had metastatic disease at diagnosis. Concurrent myasthenia gravis occurred in 21.5% of patients. Surgery was performed in 74 patients (54.8%), comprising 27 (20%) tumorectomies and 47 (34.8%) thymectomies. According to the Masaoka-Koga system, overall survival (OS) at five-years was 73.4%, 63.8% and 51%, at stages I-II, III-IVA and IVB, respectively (p = 0.005). Furthermore, patients with low lactate dehydrogenase (LDH) (≤373 IU/L) at baseline and myasthenia gravis concurrence showed significantly better OS (p = 0.001 and p = 0.008, respectively). In multivariate analysis, high LDH levels (HR 2.8 [95% confidence interval [CI]: 1.1-7.8]; p = 0.036) at baseline and not performing a surgical resection (HR 4.1 [95% CI: 1.3-12.7]; p = 0.016) were significantly associated with increased risk of death. CONCLUSIONS Our data provides the largest insight into the clinical characteristics and outcomes of patients with thymomas in Latin America. Survival in patients with thymomas continues to be very favorable, especially when subjected to adequate local control.
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Affiliation(s)
- Claudio Martín
- Thoracic Oncology UnitAlexander Fleming Cancer InstituteBuenos AiresArgentina
| | - Diego Enrico
- Clinical Oncology DepartmentAlexander Fleming Cancer InstituteBuenos AiresArgentina
| | - Luis Mas
- Thoracic Oncology Unit, Oncology DepartmentInstituto Nacional de Enfermedades Neoplásicas – INENLimaPeru
| | | | - Oscar Arrieta
- Thoracic Oncology UnitInstituto Nacional de Cancerología‐ INCanMéxico CityMexico
| | - Tannia Soria
- Thoracic Oncology UnitHospital SOLCAQuitoEcuador
| | - Andrés F. Cardona
- Clinical and Traslational Oncology GroupClinica del CountryBogotáColombia
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
- Molecular Oncology and Biology Systems Research Group (Fox‐G)Universidad el BosqueBogotáColombia
| | - Alejandro Ruiz‐Patiño
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
- Molecular Oncology and Biology Systems Research Group (Fox‐G)Universidad el BosqueBogotáColombia
| | - Rossana Ruiz
- Thoracic Oncology Unit, Oncology DepartmentInstituto Nacional de Enfermedades Neoplásicas – INENLimaPeru
| | - Patricia Rioja
- Thoracic Oncology Unit, Oncology DepartmentInstituto Nacional de Enfermedades Neoplásicas – INENLimaPeru
| | - Sophia Lozano
- Thoracic Oncology Unit, Oncology DepartmentInstituto Nacional de Enfermedades Neoplásicas – INENLimaPeru
| | | | - Feliciano Barrón
- Thoracic Oncology UnitInstituto Nacional de Cancerología‐ INCanMéxico CityMexico
| | - Carmen Puparelli
- Thoracic Oncology UnitAlexander Fleming Cancer InstituteBuenos AiresArgentina
| | - Florencia Tsou
- Thoracic Oncology UnitAlexander Fleming Cancer InstituteBuenos AiresArgentina
| | | | - Helano C. Freitas
- Department of Medical OncologyA C Camargo Cancer CenterSão PauloBrazil
| | | | - Leonardo Rojas
- Clinical and Traslational Oncology GroupClinica del CountryBogotáColombia
- Molecular Oncology and Biology Systems Research Group (Fox‐G)Universidad el BosqueBogotáColombia
- Oncology DepartmentClínica ColsanitasBogotáColombia
| | | | - Luis Corrales
- Thoracic Oncology UnitHospital San Juan de Dios/Centro de Investigación y Manejo del Cáncer (CIMCA)San JoséCosta Rica
| | - Carolina Sotelo
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
| | - July Rodríguez
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
| | - Luisa Ricaurte
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
| | - Jenny Ávila
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
| | - Pilar Archila
- Foundation for Clinical and Applied Cancer Research – FICMACBogotáColombia
| | - Rafael Rosell
- Cancer Biology and Precision Medicine Program at the Catalan Institute of OncologyHospital Germans Trias i PujolBarcelonaSpain
| | - Mauricio Cuello
- Medical Oncology Department, Hospital de ClínicasUniversidad de la Republica – UdeLARMontevideoUruguay
| | - Jordi Remon
- Department of Medical Oncology, Centro Integral Oncológico Clara Campal (HM‐CIOCC)Hospital HM Delfos, HM HospitalesBarcelonaSpain
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Galián S, Peinado B, Ruiz S, Poto A, Almela L, Castillo J, Lozano S. Uso de la ecografía para el diagnóstico y seguimiento de la gestación en la cabra Murciano-Granadina. ARCH ZOOTEC 2021. [DOI: 10.21071/az.v70i269.5424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Se realiza una sucinta revisión en un intento de profundizar y mejorar la precocidad del diagnóstico ecográfico de la gestación. La descripción de los principios en los que se basa la aplicación de los ultrasonidos sobre las partes anatómicas del aparato genital de las hembras caprinas con indicación de las nuevas metodologías que en la actualidad pueden aplicarse, como es el caso de la apreciación de la circulación sanguínea en el desarrollo e implantación del embrión y del feto. Para ello se muestran en distintas coloraciones desde la formación de vesículas germinativas hasta el latido cardiaco en los estadios precoces de la gestación. La aplicación del sistema Doppler y el efecto de tres dimensiones en las imágenes ecográficas pueden ser de gran ayuda, no solo en el diagnóstico de la gestación sino también en el desarrollo embrionario. Se exponen imágenes sobre las gestaciones obtenidas en cabras Murciano Granadinas en distintos días tras la inseminación donde se percibe desde la aparición de líquidos indicadores de gestación hasta a presencia de órganos en distintos estadios de desarrollo.
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Rioja P, Ruiz R, Galvez-Nino M, Lozano S, Valdiviezo N, Olivera M, Cabero O, Guillen ME, De La Guerra A, Amorin E, Barrionuevo C, Mas L. Epidemiology of thymic epithelial tumors: 22-years experience from a single-institution. Thorac Cancer 2020; 12:420-425. [PMID: 33356008 PMCID: PMC7882391 DOI: 10.1111/1759-7714.13760] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 09/29/2020] [Revised: 11/02/2020] [Accepted: 11/07/2020] [Indexed: 11/30/2022] Open
Abstract
Background To assess the correlation of WHO histological classification and Masaoka–Koga staging system of thymic epithelial tumors (TETs) with prognosis. Methods We retrospectively analyzed 83 patients with TETs in the Instituto Nacional de Enfermedades Neoplasicas between 1996 to 2018. We analyzed the clinical stages, histological types and treatment modalities and attempted to determine the impact on overall survival. The data was retrieved from clinical files and reviewed by a pathologist who reclassificated according to the 2004 WHO classification system. The staging was performed with the Masaoka–Koga staging system. Survival curves were constructed with Kaplan‐Meir method. Results There was a total of 83 patients with a median age of 55 years old included in the study. The histological type corresponded to thymoma (T) in 63.8% (n = 53) and to thymic carcinoma (TC) in 36.1%. T were type A, AB, B1, B2 and B3 in 14.4%, 18%, 12%, 3.6%, 7.4% of cases, respectively. The proportion of advanced disease (Masaoka stage III–IV) was high (65%). With a median follow‐up of 88.4 months, median overall survival (OS) was 81.6 months for T and 12.3 months for TC (P = 0.01). Univariate analysis showed that sex, histological type, clinical stage and surgery (P = 0.01) were significant independent prognostic factors. On multivariate analysis, histology type and Masaoka–Koga staging had an effect on survival. Conclusions The results indicates a clear association between the WHO histological classification and Masaoka–Koga staging system with survival. We found a higher proportion of TETs with advanced disease at diagnosis. Further research are required and collaboration is important to foster knowledge focused on classification and treatment. Key points Significant findings of the study The WHO histological classification, the Masaoka–Koga system and surgery treatment were associated with overall survival. What this study adds To determine prognosis factors in TETs.
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Affiliation(s)
| | - Rossana Ruiz
- National Institute of Neoplastic Diseases, Lima, Peru.,Peruvian Group of Clinical Studies in Oncology, Lima, Peru
| | | | - Sophia Lozano
- National Institute of Neoplastic Diseases, Lima, Peru
| | | | | | | | | | | | - Edgar Amorin
- National Institute of Neoplastic Diseases, Lima, Peru
| | | | - Luis Mas
- National Institute of Neoplastic Diseases, Lima, Peru.,Peruvian Group of Clinical Studies in Oncology, Lima, Peru
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Baskin II, Lozano S, Durot M, Marcou G, Horvath D, Varnek A. Autoignition temperature: comprehensive data analysis and predictive models. SAR QSAR Environ Res 2020; 31:597-613. [PMID: 32646236 DOI: 10.1080/1062936x.2020.1785933] [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: 05/18/2020] [Accepted: 06/18/2020] [Indexed: 06/11/2023]
Abstract
Here we report a new predictive model for autoignition temperature (AIT), an important physical parameter widely used to assess potential safety hazards of combustible materials. Available structure-AIT data extracted from different sources were critically analysed. Support vector regression (SVR) models on different data subsets were built in order to identify a reliable compound set on which a realistic model could be built. This led to a selection of the dataset containing 875 compounds annotated with AIT values. The thereupon-based SVR model performs reasonably well in cross-validation with the determination coefficient r 2 = 0.77 and mean absolute error MAE = 37.8°C. External validation on 20 industrial compounds missing in the training set confirmed its good predictive power (MAE = 28.7°C).
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Affiliation(s)
- I I Baskin
- Laboratory of Chemoinformatics, University of Strasbourg, UMR 7140 CNRS/UniStra , Strasbourg, France
| | - S Lozano
- BioLab, Centre de Recherche de Solaize, Total , Solaize, France
| | - M Durot
- BioLab, Centre de Recherche de Solaize, Total , Solaize, France
| | - G Marcou
- Laboratory of Chemoinformatics, University of Strasbourg, UMR 7140 CNRS/UniStra , Strasbourg, France
| | - D Horvath
- Laboratory of Chemoinformatics, University of Strasbourg, UMR 7140 CNRS/UniStra , Strasbourg, France
| | - A Varnek
- Laboratory of Chemoinformatics, University of Strasbourg, UMR 7140 CNRS/UniStra , Strasbourg, France
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Abstract
AIM To study morbi-mortality, survival after hepatectomy in elderly patients, and influence on their short-term autonomy. PATIENTS AND METHODS This is a retrospective study conducted between 2002 and 2017 comparing patients less than 65 years old (controls) to those more than 65 years old (cases) from a prospective database, with retrospective collection of geriatric data. Cases were divided into three sub-groups (65-70 years, 70-80 years and>80 years). RESULTS Four hundred and eighty-two patients were included. There was no age difference in number of major hepatectomies (P=0.5506), length of stay (P=0.3215), mortality at 90 days (P=0.3915), and surgical complications (P=0.1467). There were more Grade 1 Clavien medical complications among the patients aged over 65 years (P=0.1737). There was no difference in overall survival (P=0.460) or disease-free survival (P=0.108) according to age after adjustment for type of disease and hepatectomy. One-third of patients had geriatric complications. The "home discharge" rate decreased significantly with age from 92% to 68% (P=0.0001). Early loss of autonomy after hospitalization increased with age, 16% between 65 and 70 years, 23% between 70 and 80 years and 36% after 80 years (P=0.10). We identified four independent predictors of loss of autonomy: age>70 years, cholangiocarcinoma, length of stay>10 days, and metachronous colorectal cancer. CONCLUSIONS Elderly patients had the same management as young patients, with no difference in surgery or survival, but with an increase in early loss of autonomy.
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Affiliation(s)
- M Lallement
- Unité hépato-bilio-pancréatique et transplantation, département de chirurgie et de transplantation d'organes, CHU Rangueil, Toulouse, France.
| | - C Maulat
- Unité hépato-bilio-pancréatique et transplantation, département de chirurgie et de transplantation d'organes, CHU Rangueil, Toulouse, France
| | - B Suc
- Unité hépato-bilio-pancréatique et transplantation, département de chirurgie et de transplantation d'organes, CHU Rangueil, Toulouse, France
| | - G Péré
- Unité hépato-bilio-pancréatique et transplantation, département de chirurgie et de transplantation d'organes, CHU Rangueil, Toulouse, France
| | - S Lozano
- Unité de gériatrie et oncogériatrie, CHU Purpan, Toulouse, France
| | - E Bérard
- Service d'épidémiologie, pôle santé publique et médecine sociale, département d'épidémiologie, économie de la santé et santé publique, CHU de Toulouse, Inserm UMR 1027, Toulouse, France
| | - F Muscari
- Unité hépato-bilio-pancréatique et transplantation, département de chirurgie et de transplantation d'organes, CHU Rangueil, Toulouse, France
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Mas L, Patane A, Arrieta O, Soria T, Cardona A, Martín C, Ruiz-Patiño A, Ruiz R, Rioja P, Lozano S, Barron LZ, Barrón F, Corassa M, Freitas H, De Lima VC, Corrales-Rodriguez L, Sotelo C, Rodríguez J, Ricaurte L, Ávila J, Mayorga D, Bravo M, Archila P, Otero J, Carranza H, Vargas C, Rosell R, Remon J. P1.12 Real World Characterization and Treatment Patterns of Patients with Thymic Carcinoma: Lessons from a Latin American Collaborative Study (CLICaP-LATimus). J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mas L, Patané A, Arrieta O, Soria T, Cardona A, Martin C, Ruiz-Patiño A, Rojas L, Ruiz R, Rioja P, Lozano S, Barrón ZZ, Corassa M, Freitas H, De Lima VC, Corrales L, Sotelo C, Rodriguez J, Ricaurte L, Ávila J, Mayorga D, Bravo M, Archila P, Otero J, Carranza H, Vargas C, Rosell R, Remon J. EP1.15-28 Survival of Thymoma Is Extensive in Latin-American Patients: Results from Over 10 Years of Experience (CLICaP-LATimus). J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Ducos G, Mathe O, Balardy L, Lozano S, Kurrek M, Ruiz J, Riu-Poulenc B, Fourcade O, Silva S, Minville V. Influence of Age on Decision-Making Process to Limit or Withdraw Life-Sustaining Treatment in the Intensive Care Unit - A Single Center Prospective Observational Study. J Frailty Aging 2018; 6:148-153. [PMID: 28721432 DOI: 10.14283/jfa.2017.22] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND The increasing age in the industrialized countries places significant demands on intensive care unit (ICU) resources and this triggers debates about end-of-life care for the elderly. OBJECTIVES We sought to determine the impact of age on the decision-making process to limit or withdraw life-sustaining treatment (DWLST) in an ICU in France. We hypothesized that there are differences in the decision-making process for young and old patients. DESIGN, SETTING, PARTICIPANTS We prospectively studied end-of-life decision-making for all consecutive admissions (n=390) to a tertiary care university ICU in Toulouse, France over a period of 11 months between January and October 2011. RESULTS Among the 390 patients included in the study (age ≥70yo, n=95; age <70yo, n=295) DWLST were more common for patients 70 years or older (43% for age ≥70yo vs. 16% for age <70yo, p <0.0001). Reasons for DWLST were different in the 2 groups, with the 'no alternative treatment options' and 'severity of illness' as the most frequent reasons cited for the younger group whereas it was 'severity of illness' for the older group. 'Advanced age' led to DWLSTs in 43% of the decisions in the group ≥70yo (vs. 0% in the group <70yo, p <0.0001). Multivariate logistic regression showed a high SAPS II score and age ≥70yo as independent risk factors for DWLSTs in the ICU. We did not find age ≥70yo as an independent risk factor for mortality in ICU. CONCLUSION We found that age ≥70yo was an independent risk factor for DWLSTs for patients in the ICU, but not for their mortality. Reasons leading to DWLSTs are different according to the age of patients.
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Affiliation(s)
- G Ducos
- Prof. Vincent Minville, Department of Anesthesiology and Intensive Care, Toulouse University Hospital, Institut des Maladies Métaboliques et Cardiovasculaires, INSERM U1048, Université de Toulouse, UPS, Toulouse, France, Avenue, Jean Poulhès,Toulouse, France, , phone: +33 5 61 32 27 91 Fax: +33 5 61 32 31 40
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Gerard S, Sourdet S, Lozano S, Brechemier D, Balardy L, Rolland Y. COMPARISON OF OLDER PEOPLE WITH CANCER ACCORDING TO THE FRIED OR THE G8 CRITERIA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.987] [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: 11/12/2022] Open
Affiliation(s)
- S.C. Gerard
- Gerontopole Toulouse University, Toulouse, France
| | - S. Sourdet
- Gerontopole Toulouse University, Toulouse, France
| | - S. Lozano
- Gerontopole Toulouse University, Toulouse, France
| | | | - L. Balardy
- Gerontopole Toulouse University, Toulouse, France
| | - Y. Rolland
- Gerontopole Toulouse University, Toulouse, France
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Khoder A, Sever M, Palanicawandar R, Pello O, Loaiza S, Bray E, Bradshaw A, Uddin S, Atta M, Selvaratnam V, Sevillano B, Monsalvo S, Altaf S, Innes A, Lozano S, Pavlu J, Auner H, Apperley J, Olavarria E, Kanfer E. Plerixafor effectively rescues biosimilar G-CSF-alone-based stem cell mobilisation failures. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.123] [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: 11/15/2022]
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Rougé Bugat ME, Bourgouin M, Gérard S, Lozano S, Brechemier D, Cestac P, Cool C, Balardy L. Drug Prescription Including Interactions with Anticancer Treatments in the Elderly: A Global Approach. J Nutr Health Aging 2017; 21:849-854. [PMID: 28972235 DOI: 10.1007/s12603-017-0946-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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] [Indexed: 12/20/2022]
Abstract
BACKGROUND Consequences of inappropriate prescriptions and polymedication in patients suffering from cancer are beginning to be well documented. However, the methods used to evaluate these consequences are often discussed. Few studies evaluate the risk of interaction with anticancer drugs in elderly patients suffering from cancer. OBJECTIVES To describe the prevalence (i) of polypharmacy, (ii) of potentially inappropriate drug prescriptions and (iii) of drug interactions involving anticancer treatments, using a multiple reference tools. DESIGN A retrospective, cross-sectional, multicenter study performed from January to December 2012. PARTICIPANTS Patients aged 65 years or older suffering from cancer presented at the oncogeriatric multidisciplinary meeting. MEASUREMENTS Polymedication (>6 drugs), potentially inappropriate prescriptions and drug interactions involving anticancer treatment were analyzed in combination with explicit and implicit criteria within a global approach. RESULTS Among the 106 patients included in this study, polypharmacy was present in 60.4% of cases, potentially inappropriate drug prescription in 63.1% and drug interactions in 16% of case, of which 47% involved anti-cancer treatments. Twenty-seven major drug interactions were identified and eight interactions involved chemotherapy. CONCLUSION Polymedication, inappropriate prescribing and drug interactions involving anti-cancer drugs are common and largely underestimated in elderly cancer patients.
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Affiliation(s)
- M-E Rougé Bugat
- Marie-Eve Rougé Bugat, MD PhD, DESC Oncology, 59 rue de la Providence, 31500 Toulouse, France, +33561800123, +33683058806,
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Gérard S, Bréchemier D, Lefort A, Lozano S, Abellan Van Kan G, Filleron T, Mourey L, Bernard-Marty C, Rougé-Bugat ME, Soler V, Vellas B, Cesari M, Rolland Y, Balardy L. Body Composition and Anti-Neoplastic Treatment in Adult and Older Subjects - A Systematic Review. J Nutr Health Aging 2016; 20:878-888. [PMID: 27709238 DOI: 10.1007/s12603-015-0653-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND The estimation of the risk of poor tolerance and overdose of antineoplastic agents protocols represents a major challenge in oncology, particularly in older patients. We hypothesize that age-related modifications of body composition (i.e. increased fat mass and decreased lean mass) may significantly affect tolerance to chemotherapy. METHOD We conducted a systematic review for the last 25 years (between 1990 and 2015), using US National library of Medicine Medline electronic bibliographic database and Embase database of cohorts or clinical trials exploring (i) the interactions of body composition (assessed by Dual X-ray Absorptiometry, Bioelectrical Impedance Analyses, or Computerized Tomography) with pharmacokinetics parameters, (ii) the tolerance to chemotherapy, and (iii) the consequences of chemotherapies or targeted therapies on body composition. RESULTS Our search identified 1504 articles. After a selection (using pre-established criteria) on titles and abstract, 24 original articles were selected with 3 domains of interest: impact of body composition on pharmacokinetics (7 articles), relationship between body composition and chemotoxicity (14 articles), and effect of anti-cancer chemotherapy on body composition (11 articles). The selected studies suggested that pharmacokinetic was influenced by lean mass, that lower lean mass could be correlated with toxicity, and that sarcopenic patients experienced more toxicities that non-sarcopenic patients. Regarding fat mass, results were less conclusive. No studies specifically explored the topic of body composition in older cancer patients. CONCLUSIONS Plausible pathophysiological pathways linking body composition, toxicity, and pharmacokinetics are sustained by the actual review. However, despite the growing number of older cancer patients, our review highlighted the lack of specific studies in the field of anti-neoplastic agents toxicity regarding body composition conducted in elderly.
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Affiliation(s)
- S Gérard
- Stéphane Gérard, CHU Purpan, Gérontopôle, Pavillon Junod, 170 avenue de Casselardit 31059 Toulouse Cedex 09, France, Tel: +33 6 78 94 44 22, Fax: +33 5 61 77 64 14, E-mail address:
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Sánchez-Díaz AM, Cuartero C, Rodríguez JD, Lozano S, Alonso JM, Rodríguez-Domínguez M, Tedim AP, Del Campo R, López J, Cantón R, Ruiz-Garbajosa P. The rise of ampicillin-resistant Enterococcus faecium high-risk clones as a frequent intestinal colonizer in oncohaematological neutropenic patients on levofloxacin prophylaxis: a risk for bacteraemia? Clin Microbiol Infect 2015; 22:59.e1-59.e8. [PMID: 26321668 DOI: 10.1016/j.cmi.2015.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2015] [Revised: 07/08/2015] [Accepted: 08/19/2015] [Indexed: 01/02/2023]
Abstract
Levofloxacin extended prophylaxis (LEP), recommended in oncohaematological neutropenic patients to reduce infections, might select resistant bacteria in the intestine acting as a source of endogenous infection. In a prospective observational study we evaluated intestinal emergence and persistence of ampicillin-resistant Enterococcus faecium (AREfm), a marker of hospital adapted high-risk clones. AREfm was recovered from the faeces of 52 patients with prolonged neutropenia after chemotherapy, at admission (Basal), during LEP, and twice weekly until discharge (Pos-LEP). Antibiotic susceptibility, virulence traits and population structure (pulsed-field gel electrophoresis and multilocus sequence typing) were determined and compared with bacteraemic isolates. Gut enterococcal population was monitored using a quantitative PCR quantification approach. AREfm colonized 61.4% of patients (194/482 faecal samples). Sequential AREfm acquisition (25% Basal, 36.5% LEP, 50% Pos-LEP) and high persistent colonization rates (76.9-89.5%) associated with a decrease in clonal diversity were demonstrated. Isolates were clustered into 24 PFGE-patterns within 13 sequence types, 95.8% of them belonging to hospital-associated Bayesian analysis of population structure subgroups 2.1a and 3.3a. Levofloxacin resistance and high-level streptomycin resistance were a common trait of these high-risk clones. AREfm-ST117, the most persistent clone, was dominant (60.0% isolates, 32.6% patients). It presented esp gene and caused 18.2% of all bacteraemia episodes in 21% of patients previously colonized by this clone. In AREfm-colonized patients, intestinal enrichment in the E. faecium population with a decline in total bacterial load was observed. AREfm intestinal colonization increases during hospital stay and coincides with enterococci population enrichment in the gut. Dominance and intestinal persistence of the ST117 clone might increase the risk of bacteraemia.
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Affiliation(s)
- A M Sánchez-Díaz
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - C Cuartero
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - J D Rodríguez
- Servicio de Hematología, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - S Lozano
- Servicio de Hematología, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - J M Alonso
- Servicio de Hematología, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - M Rodríguez-Domínguez
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - A P Tedim
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain
| | - R Del Campo
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
| | - J López
- Servicio de Hematología, Hospital Universitario Ramón y Cajal, 28034 Madrid, Spain
| | - R Cantón
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain.
| | - P Ruiz-Garbajosa
- Servicio de Microbiología, Hospital Universitario Ramón y Cajal and Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Madrid, Spain; Red Española de Investigación en Patología Infecciosa (REIPI), Madrid, Spain
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Rodrigo JS, Cantero E, García B, Borbón F, Irigoyen U, Lozano S, Fernande PM, Chávez RA. Atmospheric stability assessment for the characterization of offshore wind conditions. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/1742-6596/625/1/012044] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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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16
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Lozano S, Leseux L, Mazieres J. Facteurs influençant l’inclusion des patients atteints de cancer thoracique dans les essais. Rev Mal Respir 2015; 32:544-6. [DOI: 10.1016/j.rmr.2014.10.730] [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] [Received: 09/08/2014] [Accepted: 10/17/2014] [Indexed: 11/25/2022]
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17
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Brechemier D, Comont T, Bertoli S, Lozano S, Gerard S, Adoue D, Lauwers-Cances V, Beyne-Rauzy O. 92 IMPACT OF COMORBIDITIES AND GERIATRIC ASSESSMENT IN HIGH RISK MYELODYSPLASTIC SYNDROMES OVER 75 YEARS TREATED WITH AZACITIDINE. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30093-x] [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: 10/23/2022]
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18
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Guerveno C, Sorin L, Lozano S, Gaudin C, Balardy L. Syndrome de pseudo Felty inaugurant une polyarthrite rhumatoïde. Rev Med Interne 2013. [DOI: 10.1016/j.revmed.2013.10.225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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19
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Gaudre N, Favier C, Michaud M, Lozano S, Gaudin C, Balardy L. Ophtalmoplégie douloureuse sur anévrisme de l’artère carotide révélant une maladie de Horton. Rev Med Interne 2013. [DOI: 10.1016/j.revmed.2013.03.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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20
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Buehler S, Schumann S, Lichtwarck-Aschoff M, Lozano S, Guttmann J. The shape of intratidal resistance-volume and compliance-volume curves in mechanical ventilation – an animal study. BIOMED ENG-BIOMED TE 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-D/bmt-2013-4118/bmt-2013-4118.xml. [DOI: 10.1515/bmt-2013-4118] [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: 11/15/2022]
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21
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Buehler S, Schumann S, Lichtwarck-Aschoff M, Lozano S, Guttmann J. Dynamic Hysteresis Behaviour of Respiratory System Mechanics. BIOMED ENG-BIOMED TE 2013; 58 Suppl 1:/j/bmte.2013.58.issue-s1-D/bmt-2013-4119/bmt-2013-4119.xml. [DOI: 10.1515/bmt-2013-4119] [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: 11/15/2022]
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22
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Buehler S, Jensen M, Lozano S, Schumann S, Guttmann J. A rule for predicting the new equilibrated carbon dioxide partial pressure after changes in the ventilation frequency. Crit Care 2012. [PMCID: PMC3363543 DOI: 10.1186/cc10732] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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23
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Gutiérrez E, Adenso-Díaz B, Lozano S, González-Torre P. A competing risks approach for time estimation of household WEEE disposal. Waste Manag 2010; 30:1643-1652. [PMID: 20231083 DOI: 10.1016/j.wasman.2010.02.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2009] [Revised: 02/17/2010] [Accepted: 02/20/2010] [Indexed: 05/28/2023]
Abstract
The recent growth in the number of electrical and electronic devices is viewed as one the priority waste streams in European Union waste management policy. This paper presents the findings of a survey to study domestic habits with respect to Waste Electrical and Electronic Equipment (WEEE) in Spain. A specific problem when performing this estimation arises from the fact that consumers quite often store old appliances at home when they are no longer used. Focusing on four different types of appliance, survival analysis (SA) is used to study both the usage span and the reasons for no longer using each device. The time that the discarded products were kept at home before being disposed of was studied using competing risks (CR) analysis. The results of the analysis provide information on the distribution of the studied variables for the different outcomes as well as the influence exerted by the socio-demographic variables considered. Relations between these characteristics and the storage time of the appliances before disposal emerge based on survey data. For instance, the CR model finds that the storage time of the some appliances (i.e. refrigerator) is related to these social-demographics factors. However, other appliances (i.e. microwave oven) are less influenced by these factors. The attitude and motivation of the respondents to the survey as regards the End-of-Life of appliances were also analysed. A majority of respondents do not store discarded appliances at home. The first reason for storing appliances at home is the possibility of it being useful in the future and the second that the respondents did not know what to do with them.
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Affiliation(s)
- E Gutiérrez
- Escuela Técnica Superior de Ingenieros, Universidad de Sevilla, 41092 Sevilla, Spain.
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24
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Almela M, Torres P, Lozano S, Bueno J, Huss S, Lavandera J, Bustos JG, Herreros E. In vitro absorption of 4(1H)-pyridone antimalarial derivative and its pro-drug using a Caco-2 model. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.842] [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: 10/19/2022]
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25
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Pierre MC, Chabbert V, Lozano S, Bigay-Game L, Lévêque N, Desloques L, Otal P, Rousseau H, Didier A, Mazières J. [Stenting for superior vena cava obstruction associated with lung cancer: monocentric study]. Rev Mal Respir 2009; 26:744-50. [PMID: 19953016 DOI: 10.1016/s0761-8425(09)72425-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
INTRODUCTION Superior vena cava obstruction is an urgent complication of lung cancer. Superior vena cava stent insertion can be considered to provide rapid relief of the symptoms. METHODS To estimate the efficiency and the complications of this procedure, we retrospectively analyzed 41 consecutive patients treated during the last 5 years by self-expanding nitinol stent insertion for superior vena cava obstruction due to lung cancer. It was combined with anticoagulation and corticosteroids. RESULTS 41 patients benefited from this treatment (30 men and 11 women) with an average age of 59 years. Etiologies of the vena cava obstruction were: small cell carcinoma (11), adenocarcinoma (8), squamous cell carcinoma (9), large cell carcinoma (9) and others (4). All patients were symptomatic. The average period between the onset of symptoms and the vascular stenting was 14 days. Specific treatment was chemotherapy (18 patients), radiotherapy (1 patient), or both (14 patients), and no specific treatment for 6 patients. The procedure consisted of the insertion of 1 (73%) or 2 (27%) stents, with an average length and caliber of 7.5 cm and 14 mm respectively. No major complication was reported in short and long-term follow up. Symptomatic improvement was observed for all the patients within 48 hours. Median survival after the stenting was of 6.7 months. CONCLUSION In our study, vascular stenting for malignant superior cava vena obstruction allows a rapid improvement of the symptoms with very few complications, suggesting a possible role as first line treatment for chemo or radio-resistant tumours.
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Affiliation(s)
- M-C Pierre
- Service de Pneumologie-allergologie, Clinique des Voies Respiratoires, Hôpital Larrey, Toulouse, France
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26
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Egea E, Mendoza D, Lozano S, Garavito G. Proteins From Whole Body Of Ascaris Suum And Ascaris Lumbricoides Seem To Have Different IgE Binding Profile On Immunoblotting Of Serum From Allergy Asthmatics Patients. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.867] [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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27
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Lozano S, Möller K, Brendle A, Gottlieb D, Schumann S, Stahl C, Guttmann J. AUTOPILOT-BT: A system for knowledge and model based mechanical ventilation. Technol Health Care 2008. [DOI: 10.3233/thc-2008-16101] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- S. Lozano
- Department of Biomedical Engineering, Furtwangen University, Villingen-Schwenningen Campus, Germany
| | - K. Möller
- Department of Biomedical Engineering, Furtwangen University, Villingen-Schwenningen Campus, Germany
| | - A. Brendle
- Section of Experimental Anesthesiology, Department of Anesthesiology and Critical Care Medicine, University Hospital Freiburg, Germany
| | - D. Gottlieb
- Section of Experimental Anesthesiology, Department of Anesthesiology and Critical Care Medicine, University Hospital Freiburg, Germany
| | - S. Schumann
- Section of Experimental Anesthesiology, Department of Anesthesiology and Critical Care Medicine, University Hospital Freiburg, Germany
| | - C.A. Stahl
- Section of Experimental Anesthesiology, Department of Anesthesiology and Critical Care Medicine, University Hospital Freiburg, Germany
| | - J. Guttmann
- Section of Experimental Anesthesiology, Department of Anesthesiology and Critical Care Medicine, University Hospital Freiburg, Germany
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28
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Lozano S, Hard BM, Tversky B. "Perspective-taking promotes action understanding and learning": Retraction. J Exp Psychol Hum Percept Perform 2008; 34:1287. [DOI: 10.1037/a0013754] [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: 11/08/2022]
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29
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Lozano S, Möller K, Brendle A, Gottlieb D, Schumann S, Stahl CA, Guttmann J. AUTOPILOT-BT: a system for knowledge and model based mechanical ventilation. Technol Health Care 2008; 16:1-11. [PMID: 18334783] [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: 05/26/2023]
Abstract
A closed-loop system (AUTOPILOT-BT) for the control of mechanical ventilation was designed to: 1) autonomously achieve goals specified by the clinician, 2) optimize the ventilator settings with respect to the underlying disease and 3) automatically adapt to the individual properties and specific disease status of the patient. The current realization focuses on arterial oxygen saturation (SpO(2)), end-tidal CO(2) pressure (P(et)CO(2)), and positive end-expiratory pressure (PEEP) maximizing respiratory system compliance (C(rs)). The "AUTOPILOT-BT" incorporates two different knowledge sources: a fuzzy logic control reflecting expert knowledge and a mathematical model based system that provides individualized patient specific information. A first evaluation test with respect to desired end-tidal-CO(2)-level was accomplished using an experimental setup to simulate three different metabolic CO(2) production rates by means of a physical lung simulator. The outcome of ventilator settings made by the "AUTOPILOT-BT" system was compared to those produced by clinicians. The model based control system proved to be superior to the clinicians as well as to a pure fuzzy logic based control with respect to precision and required settling time into the optimal ventilation state.
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Affiliation(s)
- S Lozano
- Department of Biomedical Engineering, Furtwangen University, Villingen-Schwenningen Campus, Germany.
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30
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Gottlieb D, Lozano S, Guttmann J, Möller K. Knowledge acquisition to design a fuzzy system for disease-specific automatic control of mechanical ventilation. Crit Care 2008. [PMCID: PMC4088677 DOI: 10.1186/cc6527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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31
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Benito JM, López M, Lozano S, Ballesteros C, González-Lahoz J, Soriano V. Hydroxyurea exerts an anti-proliferative effect on T cells but has no direct impact on cellular activation. Clin Exp Immunol 2007; 149:171-7. [PMID: 17511775 PMCID: PMC1942020 DOI: 10.1111/j.1365-2249.2007.03412.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Hydroxyurea (HU) is a cytostatic drug which has been used as an anti-HIV agent due mainly to its synergistic activity when combined with certain anti-retrovirals. In addition, HU might have a beneficial effect on parameters involved in the pathogenesis of HIV infection, such as immune activation. To test this hypothesis, the effect of HU on T cell proliferation and T cell activation, as well as the potential association between these two phenomena, were examined in an in vitro model. HU exerted a dose-dependent anti-proliferative effect on T cells, and modulated the expression of different activation markers. In cells exposed to HU, expression of CD25 and CD38 diminished in a dose-dependent manner, whereas expression of CD69 increased. However, when the expression of these markers was examined separately on proliferating and non-proliferating lymphocytes, HU did not exert any significant effect. Thus, the effect of HU on T cell activation is not direct and seems to be mediated through its effect on T cell proliferation.
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Affiliation(s)
- J M Benito
- Department of Infectious Diseases, Hospital Carlos III, Madrid, Spain.
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32
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Lozano S, Moeller K, Stahl C, Guttmann J. AUTOPILOT-BT: an approach towards automatic mechanical ventilation. Crit Care 2007. [PMCID: PMC4095220 DOI: 10.1186/cc5326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
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Murris-Espin M, Peyrat E, Camara B, Lozano S, Léophonte P, Didier A. Devant des bronchectasies de l’adolescent ou de l’adulte sans cause évidente, il faut aujourd’hui évoquer une mucoviscidose, même si un premier test de la sueur s’avère négatif. Rev Mal Respir 2005. [DOI: 10.1016/s0761-8425(05)73010-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Murris-Espin M, Peyrat E, Camara B, Lozano S, Léophonte P, Didier A. Chez l’adulte jeune, vacciner contre la grippe par voie intra-dermique paraît aussi efficace que la voie intra-musculaire, et cela permet d’économiser du vaccin. Rev Mal Respir 2005. [DOI: 10.1016/s0761-8425(05)73013-8] [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: 11/27/2022]
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35
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Murris-Espin M, Peyrat E, Camara B, Lozano S, Léophonte P, Didier A. Dans les exacerbations de mucoviscidose, l’administration de tobramycine en une perfusion par jour ne parait pas plus toxique pour le rein ni moins efficace qu’en 3 perfusions par jour. Rev Mal Respir 2005. [PMCID: PMC7135659 DOI: 10.1016/s0761-8425(05)73011-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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36
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Murris-Espin M, Peyrat E, Camara B, Lozano S, Léophonte P, Didier A. Grippe aviaire : la menace se précise. Rev Mal Respir 2005. [PMCID: PMC7135679 DOI: 10.1016/s0761-8425(05)73012-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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37
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Bigay-Game L, Lozano S, Pujazon M, Carles P. 179 Accident vasculaire cérébral et cancer bronchique. A propos d’un cas d’endocardite marastique. Rev Mal Respir 2004. [DOI: 10.1016/s0761-8425(04)71805-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Prado V, Orihuela A, Lozano S, Pérez-León I. Management of the female stimulus during semen collection and its association with libido re-establishment and semen characteristics of goats. J Anim Sci 2002; 80:1520-3. [PMID: 12078732 DOI: 10.2527/2002.8061520x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The effect of management of the female stimulus during semen collection and its association with libido re-establishment and the semen characteristics of sexually mature goats was evaluated. Eight 2-yr-old bucks were individually subjected to 12 weekly trials in which one of the following three treatments was applied alternately. In treatment one, each male performed two ejaculations on an estrus-induced, restrained doe and semen was collected with an artificial vagina (AV). In treatment two, males were collected as in the former treatment, but a different doe served as the stimulus female for the second ejaculation. In treatment three, two restrained does were present while collecting each buck, allowing males to choose which female to mount and serve in each of the two collections. Number of mounts before first ejaculation and reaction times (period from introduction of the ram to the test arena to his first ejaculation) were similar among treatments (P > 0.05). A significant (P < 0.05) decrease was found for number of mounts performed before achieving the second ejaculation and for latency between ejaculations in the third treatment. No differences (P > 0.05) were found for semen volume (0.8+/-0.03, 1.0+/-0.03, and 0.9+/-0.02 mL) or sperm concentration (4.4+/-0.15, 4.6+/-0.13, and 4.4+/-0.86 spermatozoa/mL) among the three treatments or between the first and second collection. However, a trend to decrease volume and concentration was observed. It was concluded that the simultaneous presence of two females while bucks are collected reduced the number of mounts performed before the second ejaculation and the latency between ejaculations.
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Affiliation(s)
- V Prado
- Instituto Tecnológico agropecuario de Oaxaca, Ex-hacienda de Nazareno, Xoxocotlán Oaxaca, Mexico
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Herreros E, Almela MJ, Lozano S, Gomez de las Heras F, Gargallo-Viola D. Antifungal activities and cytotoxicity studies of six new azasordarins. Antimicrob Agents Chemother 2001; 45:3132-9. [PMID: 11600368 PMCID: PMC90794 DOI: 10.1128/aac.45.11.3132-3139.2001] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
GW 471552, GW 471558, GW 479821, GW 515716, GW 570009, and GW 587270 are members of a new family of sordarin derivatives called azasordarins. The in vitro activities of these compounds were evaluated against clinical isolates of yeasts, including Candida albicans, Candida non-albicans, and Cryptococcus neoformans strains. Activities against Pneumocystis carinii, Aspergillus spp., less common molds, and dermatophytes were also investigated. Azasordarin derivatives displayed significant activities against the most clinically important Candida species, with the exception of C. krusei. Against C. albicans, including fluconazole-resistant strains, MICs at which 90% of the isolates tested are inhibited (MIC(90)s) were 0.002 microg/ml with GW 479821, 0.015 microg/ml with GW 515716 and GW 587270, and 0.06 microg/ml with GW 471552, GW 471558, and GW 570009. The MIC(90)s of GW 471552, GW 471558, GW 479821, GW 515716, GW 570009, and GW 587270 were 0.12, 0.12, 0.03, 0.06, 0.12, and 0.06 microg/ml, respectively, against C. tropicalis and 4, 0.25, 0.06, 0.25, 0.5, and 0.5 microg/ml, respectively, against C. glabrata. In addition, some azasordarin derivatives (GW 479821, GW 515716, GW 570009, and GW 58720) were active against C. parapsilosis, with MIC(90)s of 2, 4, 4, and 1 microg/ml, respectively. The compounds were extremely potent against P. carinii, showing 50% inhibitory concentrations of <or=0.001 microg/ml. However Cryptococcus neoformans was resistant to all compounds tested (MIC > 16 microg/ml). These azasordarin derivatives also showed significant activity against emerging fungal pathogens, which affect immunocompromised patients, such as Rhizopus arrhizus, Blastoschizomyces capitatus, and Geotrichum clavatum. Against these organisms, the MICs of GW 587270 ranged from 0.12 to 1 microg/ml, those of GW 479821 and GW 515716 ranged from 0.12 to 2 microg/ml, and those of GW 570009 ranged from 0.12 to 4 microg/ml. Against Fusarium oxysporum, Scedosporium apiospermum, Absidia corymbifera, Cunninghamella bertholletiae, and dermatophytes, GW 587270 was the most active compound, with MICs ranging from 4 to 16 microg/ml. Against Aspergillus spp., the MICs of the compounds tested were higher than 16 microg/ml. The in vitro selectivity of azasordarins was investigated by cytotoxicity studies performed with five cell lines and primary hepatocytes. Concentrations of compound required to achieve 50% inhibition of the parameter considered (Tox(50)s) of GW 570009, GW 587270, GW 479281, and GW 515716 in the cell lines ranged from 60 to 96, 49 to 62, 24 to 36, and 16 to 38 microg/ml, respectively. The cytotoxicity values of GW 471552 and GW 471558 were >100 microg/ml for all cell lines tested. Tox(50)s on hepatocytes were in the following order: GW 471558 > GW 471552 > GW 570009 > GW 587270 > GW 515716 > GW 479821, with values ranging from higher than 100 microg/ml to 23 microg/ml. The cytotoxicity results obtained with fully metabolizing rat hepatocytes were in total agreement with those obtained with cell lines. In summary, the in vitro activities against important pathogenic fungi and the selectivity demonstrated in mammalian cell lines justify additional studies to determine the clinical usefulness of azasordarins.
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Affiliation(s)
- E Herreros
- Glaxo Smithkline, 28760 Tres Cantos, Madrid, Spain
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Abstract
The high number of reconstructive dilemmas brought about by more aggressive treatment of congenital malformations and burns has created the need for large quantities of donor skin for local coverage. Tissue expansion with external ports has become part of the authors' surgical armamentarium. From January 1996 to November 1998 the authors placed 34 expanders in 28 patients to correct congenital malformations or burn sequelae. The average patient age at the time of operation was 6.3 years, the average time of expansion was 49 days, and minimal and maximal expansion volume was 60 and 600 cc respectively. Serial injection was carried out every 2 days until total expansion was achieved, and the expanded area was two to three times as wide as the recipient defect. No major complications occurred. The most serious complications of infection and erosion of tissue overlying the device occurred in 17.6% of patients. There are several advantages to this technique: less tissue dissection, painless injections, shorter operating time, and early detection of leaks. Lozano ST, Drucker MZ. Use of tissue expanders with external ports.
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Affiliation(s)
- S Lozano
- Department of Plastic and Reconstructive Surgery, Hospital General Dr. Manuel Gea González, México City, México
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Herreros E, Almela MJ, Martinez M, Lozano S, Jackson H, Aliouat EM, Gargallo-Viola D. Microplate assays for in vitro evaluation of anti-Pneumocystis drugs. J Eukaryot Microbiol 1997; 44:43S-44S. [PMID: 9508430 DOI: 10.1111/j.1550-7408.1997.tb05766.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Gomez Orbaneja J, Lozano S. [Metastatic carcinoma]. Actas Dermosifiliogr 1970; 61:65-70. [PMID: 5505440] [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: 01/15/2023] Open
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