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Toribio L, Guzman C, Noazin S, Zimic-Sheen A, Zimic M, Gonzales I, Saavedra H, Pretell EJ, Bustos JA, Handali S, García HH. Multiantigen print immunoassay (MAPIA) for the diagnosis of neurocysticercosis: a single-center diagnostic optimization and accuracy study in Lima, Peru. J Clin Microbiol 2023; 61:e0076023. [PMID: 37966225 PMCID: PMC10729656 DOI: 10.1128/jcm.00760-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/21/2023] [Indexed: 11/16/2023] Open
Abstract
Neurocysticercosis (NCC) is the most common helminthic infection of the human central nervous system. The antibody detection assay of choice is the enzyme-linked immunoelectrotransfer blot assay using lentil-lectin purified parasite antigens (LLGP-EITB, Western blot), an immunoassay with exceptional performance in clinical samples. However, its use is mainly restricted to a few research laboratories because the assay is labor-intensive and requires sophisticated equipment, expertise, and large amounts of parasite material for preparation of reagents. We report a new immunoprint assay (MAPIA) that overcomes most of these barriers. We initially compared the performance of five different antigen combinations in a subset of defined samples in the MAPIA format. After selecting the best-performing assay format (a combination of rGP50 + rT24H + sTs14 antigens), 148 archived serum samples were tested, including 40 from individuals with parenchymal NCC, 40 with subarachnoid NCC, and 68 healthy controls with no evidence of neurologic disease. MAPIA using three antigens (rGP50 + rT24H + sTs14) was highly sensitive and specific for detecting antibodies in NCC. It detected 39 out of 40 (97.5%) parenchymal NCC cases and 40/40 (100%) subarachnoid cases and was negative in 67 out of 68 (98.53%) negative samples. MAPIA using three recombinant and synthetic antigens is a simple and economical tool with a performance equivalent to the LLGP-EITB assay for the detection of specific antibodies to NCC. The MAPIA overcomes existing barriers to adoption of the EITG LLGP and is a candidate for worldwide use.
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Affiliation(s)
- L. Toribio
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - C. Guzman
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - S. Noazin
- Department of International Health, Bloomberg School of Public Health. Johns Hopkins University, Baltimore, Maryland, USA
| | - A. Zimic-Sheen
- Bioinformatics Laboratory, Molecular Biology and Technological Developments, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, San Martín de Porres, Peru
| | - M. Zimic
- Bioinformatics Laboratory, Molecular Biology and Technological Developments, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, San Martín de Porres, Peru
| | - I. Gonzales
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
| | - H. Saavedra
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
| | - E. J. Pretell
- Hospital Nacional Alberto Sabogal Sologuren, ESSALUD, Callao, Peru
| | - J. A. Bustos
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - S. Handali
- Parasitic Diseases Branch, Division of Parasitic Diseases & Malaria, Center for Global Health, Centers for Disease Control & Prevention, Atlanta, Georgia, USA
| | - H. H. García
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of International Health, Bloomberg School of Public Health. Johns Hopkins University, Baltimore, Maryland, USA
| | - on behalf of The Cysticercosis Working Group in Peru
- Cysticercosis Unit, Instituto Nacional de Ciencias Neurológicas, Lima, Peru
- Center for Global Health, Universidad Peruana Cayetano Heredia, Lima, Peru
- Department of International Health, Bloomberg School of Public Health. Johns Hopkins University, Baltimore, Maryland, USA
- Bioinformatics Laboratory, Molecular Biology and Technological Developments, Faculty of Sciences and Philosophy, Universidad Peruana Cayetano Heredia, San Martín de Porres, Peru
- Hospital Nacional Alberto Sabogal Sologuren, ESSALUD, Callao, Peru
- Parasitic Diseases Branch, Division of Parasitic Diseases & Malaria, Center for Global Health, Centers for Disease Control & Prevention, Atlanta, Georgia, USA
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Ortega-Bravo J, Guzman C, Iturra N, Rubilar M. Forward osmosis, reverse osmosis, and distillation membranes evaluation for ethanol extraction in osmotic and thermic equilibrium. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121292] [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: 12/24/2022]
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Sánchez-Díaz E, Gleiser RM, Lopez LR, Guzman C, Contigiani MS, Spinsanti L, Gardenal CN, Gorla DE. Oviposition dynamics of Aedes aegypti in Central Argentina. Med Vet Entomol 2022; 36:43-55. [PMID: 34618943 DOI: 10.1111/mve.12550] [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: 03/15/2021] [Revised: 05/26/2021] [Accepted: 09/15/2021] [Indexed: 06/13/2023]
Abstract
Aedes (Stegomyia) aegypti (L.) (Diptera: Culicidae) is the vector of multiple arboviruses. To evaluate the association between environmental factors and the oviposition activity of Ae. aegypti in Argentina, data on the presence and abundance of eggs were collected using ovitraps, between September of 2018 and May of 2019, in the cities of Villa María, Río Cuarto and Salsipuedes (Córdoba province, Argentina). We analysed the relationships between oviposition and five environmental factors: Temperature, precipitation, vegetation cover, human population density and distance to sites with a potential high density of larval habitats, like cemeteries and trash dumps. Environmental factors' data were collected using satellite image products. The oviposition activity was randomly distributed in three cities. Using generalized linear mixed models, we show that the house where each ovitrap was placed was a source of variability in oviposition, suggesting the relevance of microsite factors and the importance of domestic control actions. Ae. aegypti oviposition was positively correlated with night-time temperature of the previous 3 weeks, and in a context-dependent manner, it was positively correlated with human population density, vegetation cover and precipitation. The consistency and magnitude of these relationships varied between cities, indicating that oviposition is related to a complex system of environmental variables.
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Affiliation(s)
- E Sánchez-Díaz
- Instituto Multidisciplinario de Biología Vegetal, Universidad Nacional de Córdoba - CONICET, IMBIV, Córdoba, Argentina
| | - R M Gleiser
- Instituto Multidisciplinario de Biología Vegetal, Universidad Nacional de Córdoba - CONICET, IMBIV, Córdoba, Argentina
- Instituto Multidisciplinario de Biología Vegetal, Centro de Relevamiento y Evaluación de Recursos Agrícolas y Naturales (CREAN), Universidad Nacional de Córdoba - CONICET, IMBIV, Córdoba, Argentina
- Facultad de Ciencias Exactas, Físicas y Naturales, Departamento de Diversidad Biológica y Ecología, Universidad Nacional de Córdoba, Córdoba, Argentina
| | - L R Lopez
- Ministerio de Salud Córdoba, Córdoba, Argentina
| | - C Guzman
- Ministerio de Salud Córdoba, Córdoba, Argentina
| | - M S Contigiani
- Facultad de Ciencias Médicas, Instituto de Virología "Dr. José María Vanella" (In.Vi.V.), Universidad Nacional de Córdoba, Córdoba, Argentina
| | - L Spinsanti
- Facultad de Ciencias Médicas, Instituto de Virología "Dr. José María Vanella" (In.Vi.V.), Universidad Nacional de Córdoba, Córdoba, Argentina
| | - C N Gardenal
- Instituto de Diversidad y Ecología Animal (IDEA), Laboratorio de Eco-Epidemiología Espacial de Enfermedades Transmitidas por Vectores, Universidad Nacional de Córdoba - CONICET, Córdoba, Argentina
| | - D E Gorla
- Instituto de Diversidad y Ecología Animal (IDEA), Laboratorio de Eco-Epidemiología Espacial de Enfermedades Transmitidas por Vectores, Universidad Nacional de Córdoba - CONICET, Córdoba, Argentina
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Roa D, Leon S, Paucar O, Gonzales A, Schwarz B, Olguin E, Moskvin V, Alva-Sanchez M, Glassell M, Correa N, Moyses H, Shankar A, Hamrick B, Sarria GR, Li B, Tajima T, Necas A, Guzman C, Challco R, Montoya M, Meza Z, Zapata M, Gonzales A, Marquez F, Neira R, Vilca W, Mendez J, Hernandez J. Monte Carlo simulations and phantom validation of low-dose radiotherapy to the lungs using an interventional radiology C-arm fluoroscope. Phys Med 2021; 94:24-34. [PMID: 34979431 DOI: 10.1016/j.ejmp.2021.12.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 11/30/2021] [Accepted: 12/27/2021] [Indexed: 11/26/2022] Open
Abstract
PURPOSE To use MC simulations and phantom measurements to investigate the dosimetry of a kilovoltage x-ray beam from an IR fluoroscope to deliver low-dose (0.3-1.0 Gy) radiotherapy to the lungs. MATERIALS AND METHODS PENELOPE was used to model a 125 kV, 5.94 mm Al HVL x-ray beam produced by a fluoroscope. The model was validated through depth-dose, in-plane/cross-plane profiles and absorbed dose at 2.5-, 5.1-, 10.2- and 15.2-cm depths against the measured beam in an acrylic phantom. CT images of an anthropomorphic phantom thorax/lungs were used to simulate 0.5 Gy dose distributions for PA, AP/PA, 3-field and 4-field treatments. DVHs were generated to assess the dose to the lungs and nearby organs. Gafchromic film was used to measure doses in the phantom exposed to PA and 4-field treatments, and compared to the MC simulations. RESULTS Depth-dose and profile results were within 3.2% and 7.8% of the MC data uncertainty, respectively, while dose gamma analysis ranged from 0.7 to 1.0. Mean dose to the lungs were 1.1-, 0.8-, 0.9-, and 0.8- Gy for the PA, AP/PA, 3-field, and 4-field after isodose normalization to cover ∼ 95% of each lung volume. Skin dose toxicity was highest for the PA and lowest for the 4-field, and both arrangements successfully delivered the treatment on the phantom. However, the dose distribution for the PA was highly non-uniform and produced skin doses up to 4 Gy. The dose distribution for the 4-field produced a uniform 0.6 Gy dose throughout the lungs, with a maximum dose of 0.73 Gy. The average percent difference between experimental and Monte Carlo values were -0.1% (range -3% to +4%) for the PA treatment and 0.3% (range -10.3% to +15.2%) for the 4-field treatment. CONCLUSION A 125 kV x-ray beam from an IR fluoroscope delivered through two or more fields can deliver an effective low-dose radiotherapy treatment to the lungs. The 4-field arrangement not only provides an effective treatment, but also significant dose sparing to healthy organs, including skin, compared to the PA treatment. Use of fluoroscopy appears to be a viable alternative to megavoltage radiation therapy equipment for delivering low-dose radiotherapy to the lungs.
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Affiliation(s)
- D Roa
- Department of Radiation Oncology, University of California, Irvine Health, Orange, CA 92868, USA.
| | - S Leon
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - O Paucar
- Facultad de Ingenieria Electrica y Electronica, Universidad Nacional de Ingenieria, Lima, Peru
| | - A Gonzales
- Facultad de Ciencias, Universidad Nacional de Ingenieria, Lima, Peru
| | - B Schwarz
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - E Olguin
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - V Moskvin
- Department of Radiation Oncology, St. Judes Children's Research Hospital, Memphis, TN 38105, USA
| | - M Alva-Sanchez
- Department of Exact and Applied Sciences, University of Health Sciences of Porto Alegre, Porto Alegre, Brazil
| | - M Glassell
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - N Correa
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - H Moyses
- Department of Radiation Oncology, University of California, Irvine Health, Orange, CA 92868, USA
| | - A Shankar
- Department of Radiology, University of Florida, Gainesville, FL 32610, USA
| | - B Hamrick
- Environmental Health and Safety, University of California, Irvine Health, Orange, CA 92868, USA
| | - G R Sarria
- University Hospital Bonn, Department of Radiation Oncology, University of Bonn, Bonn, Germany
| | - B Li
- Department of Radiation Oncology, University of California, San Francisco, CA 94115, USA
| | - T Tajima
- Department of Physics and Astronomy, University of California, Irvine, CA 92697, USA
| | - A Necas
- TAE Technologies, 1961 Pauling, Foothill Ranch, CA 92610, USA
| | - C Guzman
- Facultad de Medicina Humana, Universidad Ricardo Palma, Lima, Peru
| | - R Challco
- Facultad de Ciencias, Universidad Nacional de Ingenieria, Lima, Peru
| | - M Montoya
- Facultad de Ciencias, Universidad Nacional de Ingenieria, Lima, Peru
| | - Z Meza
- Facultad de Ciencias, Universidad Nacional de Ingenieria, Lima, Peru
| | - M Zapata
- Facultad de Ciencias, Universidad Nacional de Ingenieria, Lima, Peru
| | - A Gonzales
- Clinica Aliada contra el Cancer, Lima, Peru
| | - F Marquez
- Facultad de Ciencias Físicas, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - R Neira
- Instituto Nacional de Enfermedades Neoplasicas, Lima, Peru
| | - W Vilca
- Instituto Nacional de Enfermedades Neoplasicas, Lima, Peru
| | - J Mendez
- Facultad de Ciencias Naturales y Matemática, Universidad Nacional del Callao, Callao, Peru
| | - J Hernandez
- HRS Oncology International, Las Vegas, NV 89119, USA
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Phakela K, van Biljon A, Wentzel B, Guzman C, Labuschagne M. Gluten protein response to heat and drought stress in durum wheat as measured by reverse phase - High performance liquid chromatography. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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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Pingree C, Hales N, Guzman C, Christal J, Kardos T. HPV/p16 status of cervical lymph node metastases in oropharyngeal squamous cell carcinoma by molecular testing of FNA samples. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Silbernagel KM, Carver CN, Jechorek RP, Johnson RL, Alejo W, Aleo V, Buresh J, Cagri A, Campbell S, Carson M, Chinault K, Clayborn J, Cook F, Dammann H, Dorn S, Elko B, Farmer D, Farmer R, Gasses T, Greiman L, Guzman C, Hemker M, Hintz C, Jechorek R, Jenkins J, Kexel N, Kildisg J, Knickerbocker J, Kora L, Koziczkowski J, Krieg D, Lal A, Lam L, Lau D, Loftis M, Madewell L, Matisko V, Miele A, Muzzy T, Park J, Peters C, Pickett J, Radermacher S, Romero H, Ross J, Rotten J, Rule P, Ryser E, Satterwhite LK, Schultz A, Shell D, Smith J, Storment E, Ulmer M, Walia J, Whetzel S, Woltman N. Evaluation of VIDAS Listeria monocytogenes II (LMO2) Immunoassay Method for the Detection of Listeria monocytogenes in Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/87.5.1123] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
A multilaboratory study was conducted to compare the VIDAS®Listeria monocytogenes II (LMO2) immunoassay and the standard cultural methods for the detection of Listeria monocytogenes in foods. Five food types—vanilla ice cream, brie cheese, cooked roast beef, frozen green beans, and frozen tilapia fish—at 3 levels were analyzed by each method. A total of 26 laboratories representing government and industry participated. In this study, 1404 test portions were analyzed of which 1152 were used in the statistical analysis. There were 448 positive by the VIDAS LMO2 assay and 457 positive by the standard culture methods. A χ2 analysis of each of the 5 food types, at the 3 inoculation levels tested, was performed. The resulting χ2 value, 0.36, indicates that overall, there are no statistical differences between the VIDAS LMO2 assay and the standard methods at the 5% level of significance.
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Ponce De León R M, Boudard F, Guzman C, Dhuique-Mayer C, Leconte N, Guyot JP, Laurent C. Micro-constituants alimentaires et inflammation intestinale : développement d’un modèle de tri-culture cellulaire. NUTR CLIN METAB 2018. [DOI: 10.1016/j.nupar.2018.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ficheux A, Gayrard N, Duranton F, Guzman C, Szwarc I, Vetromile F, Brunet P, Servel M, Argilés A. A reliable method to assess the water permeability of a dialysis system: the global ultrafiltration coefficient. Nephrol Dial Transplant 2017; 32:364-370. [PMID: 28186570 PMCID: PMC5837204 DOI: 10.1093/ndt/gfw370] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 07/14/2016] [Accepted: 09/12/2016] [Indexed: 12/25/2022] Open
Abstract
Background Recent randomized controlled trials suggest that sufficiently high convection post-dilutional haemodiafiltration (HC-HDF) improves survival in dialysis patients, consequently this technique is increasingly being adopted. However, when performing HC-HDF, rigorous control systems of the ultrafiltration setting are required. Assessing the global ultrafiltration coefficient of the dialysis system [GKD-UF; defined as ultrafiltration rate (QUF)/transmembrane pressure] or water permeability may be adapted to the present dialysis settings and be of value in clinics. Methods GKD-UF was determined and its reproducibility, variability and influencing factors were specifically assessed in 15 stable patients routinely treated by high-flux haemodialysis or HC-HDF in a single unit. Results GKD-UF invariably followed a parabolic function with increasing QUF in dialysis and both pre- and post-dilution HC-HDF (R2 constantly >0.96). The vertex of the parabola, GKD-UF-max and related QUF were very reproducible per patient (coefficient of variation 3.9 ± 0.6 and 3.3 ± 0.3%, respectively) and they greatly varied across patients (31–42 mL/h−1/mmHg and 82–100 mL/min, respectively). GKD-UF-max and its associated QUF decreased during dialysis treatment (P < 0.01). The GKD-UF-max decrease was related to weight loss (R2 = 0.66; P = 0.0015). Conclusions GKD-UF is a reliable and accurate method to assess the water permeability of a system in vivo. It varies according to dialysis setting and patient-related factors. It is an objective parameter evaluating the forces driving convection and identifies any diversion of the system during the treatment procedure. It is applicable to low- or high-flux dialysis as well as pre- or post-dilution HDF. Thus, it may be used to describe the characteristics of a dialysis system, is suitable for clinical use and may be of help for personalized prescription.
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Affiliation(s)
- A. Ficheux
- RD – Néphrologie and Groupe Rein et HTA, EA7288, Université de Montpellier 1, 34093 Montpellier cedex 5, France
| | - N. Gayrard
- RD – Néphrologie and Groupe Rein et HTA, EA7288, Université de Montpellier 1, 34093 Montpellier cedex 5, France
| | - F. Duranton
- RD – Néphrologie and Groupe Rein et HTA, EA7288, Université de Montpellier 1, 34093 Montpellier cedex 5, France
| | - C. Guzman
- RD – Néphrologie and Groupe Rein et HTA, EA7288, Université de Montpellier 1, 34093 Montpellier cedex 5, France
| | - I. Szwarc
- Centre de dialyse de Sète, Néphrologie Dialyse St Guilhem, 34204 Sète, France
| | - F. Vetromile
- Centre de dialyse de Sète, Néphrologie Dialyse St Guilhem, 34204 Sète, France
| | - P. Brunet
- Service de Néphrologie, Hôpital de La Conception, Université Aix-Marseille, 13005 Marseille, France
| | - M.F. Servel
- Centre de dialyse de Sète, Néphrologie Dialyse St Guilhem, 34204 Sète, France
| | - A. Argilés
- RD – Néphrologie and Groupe Rein et HTA, EA7288, Université de Montpellier 1, 34093 Montpellier cedex 5, France
- Centre de dialyse de Sète, Néphrologie Dialyse St Guilhem, 34204 Sète, France
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Piñol S, Sala A, Guzman C, Marcos S, Joya X, Puig C, Velasco M, Velez D, Vall O, Garcia-Algar O. Arsenic levels in immigrant children from countries at risk of consuming arsenic polluted water compared to children from Barcelona. Environ Monit Assess 2015; 187:661. [PMID: 26431705 DOI: 10.1007/s10661-015-4869-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 04/05/2015] [Accepted: 09/15/2015] [Indexed: 05/20/2023]
Abstract
Arsenic is a highly toxic element that pollutes groundwater, being a major environmental problem worldwide, especially in the Bengal Basin. About 40% of patients in our outpatient clinics come from those countries, and there is no published data about their arsenic exposure. This study compares arsenic exposure between immigrant and native children. A total of 114 children (57 natives, 57 immigrants), aged 2 months to 16 years, were recruited and sociodemographic and environmental exposure data were recorded. Total arsenic in urine, hair, and nails and arsenic-speciated compounds in urine were determined. We did not find significant differences in total and inorganic arsenic levels in urine and hair, but in organic arsenic monomethylarsenic acid (MMA) and dimethylarsinous acid (DMA) in urine and in total arsenic in nails. However, these values were not in the toxic range. There were significant differences between longer than 5 years exposure and less than 5 years exposure (consumption of water from tube wells), with respect to inorganic and organic MMA arsenic in urine and total arsenic in nails. There was partial correlation between the duration of exposure and inorganic arsenic levels in urine. Immigrant children have higher arsenic levels than native children, but they are not toxic. At present, there is no need for specific arsenic screening or follow-up in immigrant children recently arrived in Spain from exposure high-risk countries.
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Affiliation(s)
- S Piñol
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
| | - A Sala
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
| | - C Guzman
- Pediatría, CAP Ciutat Vella, Institut Català de la Salut, Barcelona, Spain.
| | - S Marcos
- Pediatría, CAP Ciutat Vella, Institut Català de la Salut, Barcelona, Spain.
| | - X Joya
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
| | - C Puig
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
| | - M Velasco
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
| | - D Velez
- Departament de Pediatria, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - O Vall
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
- Departamento de Conservación y Calidad de los Alimentos, Instituto de Agroquímica y Tecnología de Slimentos (IATA-CSIC), Valencia, Spain.
| | - O Garcia-Algar
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM), Barcelona, Spain.
- Departamento de Conservación y Calidad de los Alimentos, Instituto de Agroquímica y Tecnología de Slimentos (IATA-CSIC), Valencia, Spain.
- Unitat de Recerca Infància i Entorn (URIE), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM) - Parc de Recerca Biomèdica de Barcelona (PRBB), C/ Dr. Aiguader, 88, 08003, Barcelona, Spain.
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Lalli MA, Bettcher BM, Arcila ML, Garcia G, Guzman C, Madrigal L, Ramirez L, Acosta-Uribe J, Baena A, Wojta KJ, Coppola G, Fitch R, de Both MD, Huentelman MJ, Reiman EM, Brunkow ME, Glusman G, Roach JC, Kao AW, Lopera F, Kosik KS. Whole-genome sequencing suggests a chemokine gene cluster that modifies age at onset in familial Alzheimer's disease. Mol Psychiatry 2015; 20:1294-300. [PMID: 26324103 PMCID: PMC4759097 DOI: 10.1038/mp.2015.131] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 07/10/2015] [Accepted: 07/23/2015] [Indexed: 12/22/2022]
Abstract
We have sequenced the complete genomes of 72 individuals affected with early-onset familial Alzheimer's disease caused by an autosomal dominant, highly penetrant mutation in the presenilin-1 (PSEN1) gene, and performed genome-wide association testing to identify variants that modify age at onset (AAO) of Alzheimer's disease. Our analysis identified a haplotype of single-nucleotide polymorphisms (SNPs) on chromosome 17 within a chemokine gene cluster associated with delayed onset of mild-cognitive impairment and dementia. Individuals carrying this haplotype had a mean AAO of mild-cognitive impairment at 51.0 ± 5.2 years compared with 41.1 ± 7.4 years for those without these SNPs. This haplotype thus appears to modify Alzheimer's AAO, conferring a large (~10 years) protective effect. The associated locus harbors several chemokines including eotaxin-1 encoded by CCL11, and the haplotype includes a missense polymorphism in this gene. Validating this association, we found plasma eotaxin-1 levels were correlated with disease AAO in an independent cohort from the University of California San Francisco Memory and Aging Center. In this second cohort, the associated haplotype disrupted the typical age-associated increase of eotaxin-1 levels, suggesting a complex regulatory role for this haplotype in the general population. Altogether, these results suggest eotaxin-1 as a novel modifier of Alzheimer's disease AAO and open potential avenues for therapy.
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Affiliation(s)
- M A Lalli
- Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California at Santa Barbara, Santa Barbara, CA, USA
| | - B M Bettcher
- Memory and Aging Center, Department of Neurology, University of California at San Francisco, San Francisco, CA, USA
| | - M L Arcila
- Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California at Santa Barbara, Santa Barbara, CA, USA
| | - G Garcia
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - C Guzman
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - L Madrigal
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - L Ramirez
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - J Acosta-Uribe
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - A Baena
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - K J Wojta
- Departments of Psychiatry and Neurology, Semel Institute for Neuroscience and Human Behavior, University of California at Los Angeles, Los Angeles, CA, USA
| | - G Coppola
- Departments of Psychiatry and Neurology, Semel Institute for Neuroscience and Human Behavior, University of California at Los Angeles, Los Angeles, CA, USA
| | - R Fitch
- Memory and Aging Center, Department of Neurology, University of California at San Francisco, San Francisco, CA, USA
| | - M D de Both
- Neurogenomics Division, The Translational Genomics Research Institute, Phoenix, AZ, USA
| | - M J Huentelman
- Neurogenomics Division, The Translational Genomics Research Institute, Phoenix, AZ, USA
| | - E M Reiman
- Neurogenomics Division, The Translational Genomics Research Institute, Phoenix, AZ, USA
- Banner Alzheimer's Institute, Department of Psychiatry, University of Arizona, Tucson, AZ, USA
| | - M E Brunkow
- Institute for Systems Biology, Seattle, WA, USA
| | - G Glusman
- Institute for Systems Biology, Seattle, WA, USA
| | - J C Roach
- Institute for Systems Biology, Seattle, WA, USA
| | - A W Kao
- Memory and Aging Center, Department of Neurology, University of California at San Francisco, San Francisco, CA, USA
| | - F Lopera
- Grupo de Neurociencias, Universidad de Antioquia, Medellín, Colombia
| | - K S Kosik
- Neuroscience Research Institute, Department of Molecular, Cellular and Developmental Biology, University of California at Santa Barbara, Santa Barbara, CA, USA
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Sciancalepore AG, Sallustio F, Girardo S, Passione LG, Camposeo A, Mele E, Di Lorenzo M, Costantino V, Schena FP, Pisignano D, Casino FG, Mostacci SD, Di Carlo M, Sabato A, Procida C, Creput C, Vanholder R, Stolear JC, Lefrancois G, Hanoy M, Nortier J, Potier J, Sereni L, Ferraresi M, Pereno A, Nazha M, Barbero S, Piccoli GB, Ficheux A, Gayrard N, Duranton F, Guzman C, Szwarc I, Bismuth -Mondolfo J, Brunet P, Servel MF, Argiles A, Bernardo A, Demers J, Hutchcraft A, Marbury TC, Minkus M, Muller M, Stallard R, Culleton B, Krieter DH, Korner T, Devine E, Ruth M, Jankowski J, Wanner C, Lemke HD, Surace A, Rovatti P, Steckiph D, Mancini E, Santoro A, Leypoldt JK, Agar BU, Bernardo A, Culleton BF, Vankova S, Havlin J, Klomp DJ, Van Beijnum F, Day JPR, Wieringa FP, Kooman JP, Gremmels H, Hazenbrink DH, Simonis F, Otten ML, Wester M, Boer WH, Joles JA, Gerritsen KG, Umimoto K, Shimamoto Y, Mastushima K, Miyata M, Muller M, Naik A, Pokropinski S, Bairstow S, Svatek J, Young S, Johnson R, Bernardo A, Rikker C, Juhasz E, Gaspar R, Rosivall L, Rusu E, Zilisteanu D, Balanica S, Achim C, Atasie T, Carstea F, Voiculescu M, Monzon Vazquez T, Saiz Garcia S, Mathani V, Escamilla Cabrera B, Cornelis T, Van Der Sande FM, Eloot S, Cardinaels E, Bekers O, Damoiseaux J, Leunissen KM, Kooman J, Baamonde Laborda E, Bosch Benitez-Parodi E, Perez Suarez G, Anton Perez G, Batista Garcia F, Lago Alonso M, Garcia Canton C, Hashimoto S, Seki M, Tomochika M, Yamamoto R, Okamoto N, Nishikawa A, Koike T, Ravagli E, Maldini L, Badiali F, Perazzini C, Lanciotti G, Steckiph D, Surace A, Rovatti P, Severi S, Rigotti A, McFarlane P, Marticorena R, Dacouris N, Pauly R, Nikitin S, Amdahl M, Bernardo A, Culleton B, Calabrese G, Mancuso D, Mazzotta A, Vagelli G, Balenzano C, Steckiph D, Bertucci A, Della Volpe M, Gonella M, Uchida T, Ando K, Kofuji M, Higuchi T, Momose N, Ito K, Ueda Y, Miyazawa H, Kaku Y, Nabata A, Hoshino T, Mori H, Yoshida I, Ookawara S, Tabei K, Umimoto K, Suyama M, Shimamoto Y, Miyata M, Kamada A, Sakai R, Minakawa A, Fukudome K, Hisanaga S, Ishihara T, Yamada K, Fukunaga S, Inagaki H, Tanaka C, Sato Y, Fujimoto S, Potier J, Bouet J, Queffeulou G, Bell R, Nolin L, Pichette V, Provencher H, Lamarche C, Nadeau-Fredette AC, Ouellet G, Leblanc M, Bezzaoucha S, Kouidmir Y, Kassis J, Alonso ML, Lafrance JP, Vallee M, Fils J, Mailley P, Cantaluppi V, Medica D, Quercia AD, Dellepiane S, Ferrario S, Gai M, Leonardi G, Guarena C, Caiazzo M, Biancone L, Enos M, Culleton B, Wiebenson D, Potier J, Hanoy M, Duquennoy S, Tingli W, Ling Z, Yunying S, Ping F, Dolley-Hitze T, Hamel D, Lombart ML, Leypoldt JK, Bernardo A, Hutchcraft AM, Vanholder R, Culleton BF, Movilli E, Camerini C, Gaggia P, Zubani R, Feller P, Pola A, Carli O, Salviani C, Manenti C, Cancarini G, Bozzoli L, Colombini E, Ricchiuti G, Pisanu G, Gargani L, Donadio C, Sidoti A, Lusini ML, Biagioli M, Ghezzi PM, Sereni L, Caiazzo M, Palladino G, Tomo T, Ishida K, Nakata T, Hamel D, Dolley-Hitze T. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 1. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu153] [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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Steckiph D, Calabrese G, Bertucci A, Mazzotta A, Vagelli G, Gonella M, Stamopoulos D, Manios E, Papachristos N, Grapsa E, Papageorgiou G, Gogola V, So B, Dey V, Spalding EM, Libetta C, Esposito P, Margiotta E, Maffioli P, Bonaventura A, Bianchi L, Romano D, Rampino T, De Rosa G, Mauric A, Haug U, Enzinger G, Kern-Derstvenscheg E, Sluga A, Ausserwinkler C, Beck W, Rosenkranz AR, Maheshwari V, Haroon S, Loy Y, Samavedham L, Rangaiah GP, Lau T, Stamopoulos D, Mpakirtzi N, Panagiotou M, Barbarousi D, Matsouka C, Grapsa E, Bunani AD, Kowalczyk M, Bartnicki P, Banach M, Rysz J, Lentini P, Zanoli L, Granata A, Contestabile A, Basso A, Berlingo G, Pellanda V, de Cal M, Grazia V, Clementi A, Insalaco M, Dell'Aquila R, Karkar A, Abdelrahman M, Martins AR, Parreira L, Duque AS, Rodrigues I, Baffoun AB, Youssfi MA, Sayeh A, Beji M, Ben Khadra R, Hmida J, Akazawa M, Horiuchi H, Hori Y, Yamada A, Satou H, Odamaki S, Nakai S, Satou K, Aoki K, Saito I, Kamijo Y, Ogata S, Ishibashi Y, Basso F, Wojewodzka-Zelezniakowicz M, Cruz D, Giuliani A, Blanca Martos L, Piccinni P, Ronco C, Potier J, Queffeulou G, Bouet J, Nilsson A, Sternby J, Grundstrom G, Alquist M, Ferraresi M, Di Vico MC, Vigotti FN, Deagostini M, Scognamiglio S, Consiglio V, Clari R, Moro I, Mongilardi E, Piccoli GB, Hancock V, Huang S, Nilsson A, Grundstrom G, Nilsson Ekdahl K, Calabrese G, Steckiph D, Bertucci A, Baldin C, Petrarulo M, Mancuso D, Vagelli G, Gonella M, Inguaggiato P, Canepari G, Gigliola G, Ferrando C, Meinero S, Sicuso C, Pacitti A, Stamopoulos D, Mpakirtzi N, Manios E, Afentakis N, Grapsa E, Tomo T, Matsuyama K, Nakata T, Ishida K, Takeno T, Kadota JI, Minakuchi J, Kastl J, Merello M, Boccato C, Giordana G, Mazzone S, Moscardo V, Kastl J, Giordana G, Reinhardt B, Knaup R, Kruger W, Tovbin D, Kim S, Avnon L, Zlotnik M, Storch S, Umimoto K, Shimamoto Y, Suyama M, Miyata M, Bosch Benitez-Parodi E, Baamonde Laborda EE, Perez G, Ramirez JI, Ramirez Puga A, Guerra R, Garcia Canton C, Lago Alonso MM, Toledo A, Checa Andres MD, Latif FE, Mochida Y, Matsumoto K, Morita K, Tsutsumi D, Ishioka K, Maesato K, Oka M, Moriya H, Hidaka S, Ohtake T, Kobayashi S, Ficheux A, Gayrard N, Duranton F, Guzman C, Szwarc I, Bismuth-Mondolfo J, Brunet P, Servel MF, Argiles A, Tsikliras N, Mademtzoglou S, Balaskas E, Zeid M, Mostafa A, Mowafy MN, Abdo EI, Al Amin OM, Ksiazek A, Zaluska W, Waniewski J, Debowska M, Wojcik-Zaluska A, Elias M, Francois H, Obada E, Lorenzo HK, Charpentier B, Durrbach A, Beaudreuil S, Imamovic G, Marcelli D, Bayh I, Hrvacevic R, Kapun S, Grassmann A, Scatizzi L, Maslovaric J, Daelemans R, Mesens S, Mohamed EA, Wafae A, Kawtar H, Mohamed Amine H, Driss K, Mohammed B. Extracorporeal dialysis: techniques and adequacy - A. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft116] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Chapdelaine I, Mostovaya IM, Blankestijn PJ, Bots ML, van den Dorpel MA, Nube MJ, ter Wee PW, Grooteman MPC, Wang B, Wang K, Gayrard N, Ficheux A, Duranton F, Guzman C, Szwarc I, Bismuth-Mondolfo J, Brunet P, Servel MF, Argiles A, Pedrini L, Mari F, Barbieri C, Cattinelli I, Bellocchio F, Amato C, Leypoldt JK, Agar BU, Culleton BF, Eloot S, Vanholder R. Extracorporeal techniques and adequacy. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft159] [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: 11/12/2022] Open
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Rugale C, Oudot C, Desmetz C, Guzman C, Lajoix A, Jover B. [Sodium restriction prevents cardiovascular remodeling associated with insulin-resistance in the rat]. Ann Cardiol Angeiol (Paris) 2013; 62:139-43. [PMID: 23601354 DOI: 10.1016/j.ancard.2013.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Accepted: 03/08/2013] [Indexed: 11/19/2022]
Abstract
AIM OF THE STUDY In the present work, the objective was to evaluate the influence of a dietary sodium restriction on cardiovascular morphology changes associated with insulin-resistance. ANIMALS AND PROTOCOL At 8 weeks of age, rats were fed for 12 weeks a 60%-fructose diet containing a regular sodium content (0.64%) or totally lacking in sodium chloride (<0.01%). A group of rats fed a wheat starch-based diet with regular sodium content served as control group. RESULTS Elevated HOMA index and plasma insulin confirm the presence of insulin-resistance in fructose-fed rats. Concomitantly, an increase in cardiac mass and in cardiac collagen (Sirius red staining) was detected without obvious change in arterial pressure or cardiac aldosterone synthase mRNA expression. In addition, cross-sectional area of the carotid artery was higher in fructose-fed rats. Production of superoxide anion, equated with dihydroethidium (DHE) staining, was enhanced in cardiac tissue of rats with insulin-resistance. Withdrawal of sodium from the fructose diet prevented all the cardiovascular effects of fructose consumption, including DHE staining. CONCLUSION These results are in favor of the participation of oxidative stress normalization in the beneficial influence of dietary sodium deprivation on cardiovascular remodeling in this model of insulin-resistance in rats.
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Affiliation(s)
- C Rugale
- EA7288, groupe rein et hypertension, PRES Sud de France, institut universitaire de recherche clinique, 641, avenue du Doyen-Gaston-Giraud, 34093 Montpellier cedex 5, France
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Tappia PS, Guzman C, Dunn L, Aroutiounova N. Adverse cardiac remodeling due to maternal low protein diet is associated with alterations in expression of genes regulating glucose metabolism. Nutr Metab Cardiovasc Dis 2013; 23:130-135. [PMID: 21788123 DOI: 10.1016/j.numecd.2011.03.010] [Citation(s) in RCA: 12] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2010] [Revised: 03/10/2011] [Accepted: 03/28/2011] [Indexed: 11/27/2022]
Abstract
BACKGROUND AND AIMS We have previously shown that a maternal low protein (LP) diet during pregnancy in the rat results in adverse ventricular remodeling and contractile deficiencies of the neonatal rat heart. Since pathological cardiac hypertrophy is associated with increased expression of genes involved in glucose handling, this study was undertaken to examine if maternal LP diet alters the expression of genes encoding for some key components of glucose metabolism and uptake, and of the insulin receptor (IR) signal transduction in the heart of male offspring. METHODS AND RESULTS We determined the effect of maternal LP and normal diet (90 and 180 g/casein/kg respectively) on IR β-subunit, insulin receptor substrate (IRS)-1, phosphotyrosyl protein phosphatase (PTP) 1B, GLUT4 and phosphatidylinositol (PI) 3-kinase in male rat offspring at 24 h and at 1, 4 and 8 wks post-partum. Quantitative real-time RT-PCR revealed significant age-dependent increases in the expression of IR β-subunit, IRS-1, PTP1B, GLUT4 and PI3-kinase in the LP group with concomitant increases in corresponding protein abundance at 4 wks of age. These changes were associated with increases in left ventricular (LV) internal diameters as well as increases in LV wall thickness. CONCLUSION A maternal LP diet can induce increases in the gene expression and protein levels of key components of glucose metabolism and the IR signal transduction pathway in the neonatal rat heart, which may be related to accelerated energy supply, demand and utilization for ventricular remodeling due to compromised contractile performance during early life.
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Affiliation(s)
- P S Tappia
- I.H. Asper Clinical Research Institute, St. Boniface Hospital Research Centre, Canada.
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Santos-Moreno P, Bello J, Palomino A, Villarreal L, Zambrano D, Amador L, Andrade O, Urbina A, Guzman C, Cubides M, Arbelaez A, Valle-Onate R, Galarza-Maldonado C, Brickmann K, Furst F, Kielhauser S, Hermann J, Brezinsek HP, Graninger W, Ziaee V, Sadghi P, Moradinejad MH, Yoo DH, Woo JH, Kim YJ, Kim JJ, Choi CB, Sung YK, Kim TH, Jun JB, Bae SC, Park W, Joo K, Lim MJ, Kwon SR, Jung. KH, Choi CB, Bang SY, Park SR, Lee KW, Kim TH, Bae SC, Donmez S, Pamuk ON, Pamuk GE, Aksoy A, Almoallim H, Almasari A, Khadawardi H, Haroyan A, Petrova M, Shah D, Bhatnagar A, Wanchu A, Okada M, Ardakani FE, Owlia M, Hesami S, Owlia MB, Soleimani H, Saleh-Abadi HS, Lotfi M, Owlia MB, Dehghan A, Saberir B, Moradinejad MH, Zamani G, Aghamohammadi A, Soheili H, shahinpour S, Abolhassani H, Hirbod A, Arandi N, Tavassoli M, Parvaneh N, Rezaei N, Rezaieyazdi Z, Hatef MR, Sedighi S, Ah Kim H, Chung CK, Martinez Perez R, Leon M, Uceda J, Rodriguez Montero S, Munoz A, Velloso M, Marenco J, Tsiliakou N, Giotakos O, Koutsogeorgopoulou L, Kassimos D, Fernandes N, Silva V, Hernandez Sanchez R, Gonzalez Moreno P, Uceda Montanes J, Marenco de la Fuente J, Aytekin E, Demir SE, Okur SC, Caglar NS, Tutun S, Eroglu Demir S, Rezvani A, Ozaras N, Rezvani A, Eroglu Demir S, Ozaras N, Poyraz E, Guneser M, Demir SE, Asik Celik HK, Rezvani A, Ozaras N, Poyraz E, Batmaz I, Sariyildiz M, Dilek B, Yildiz I, Ayyildiz O, Nas K, Cevik R, Gunay T, Garip Y, Bodur H, Baykal T, Seferoglu B, Senel K, Baykal T, Seferoglu B, Senel K, Kara M, Tiftik T, Kaya A, Engin Tezcan M, Akif Ozturk M, Ozel S, Akinci A, Ozcakar L, Saliha Eroglu D, Ebru A, Ilhan K, Teoman A, Gulis D, Ileana F, Linda G, Cristina P, Laura D, Simona S, Simona R, Kaya A, Kara M, Tiftik T, Engin Tezcan M, Akif Ozturk M, Ataman S, Akinci A, Ozcakar L, Venkatesan S, Ng L, Carbone C, Jaeggi E, Silverman E, Kamphuis S, Mak N, Carbone C, Lim L, Levy D, Silverman E, Kamphuis S, Ciobanu E, Mazur M, Mazur-Nicorici L, Ah Kim H, Jin Park S, Cheon EJ, Chung CK, Tugnet N, Dixey J, Cheng C, Schmidt S, Stoy K, Seisenbayev A, Togizbaev G, Santos-Moreno P, Bello J, Gonzalez F, Cubides M, Arbelaez A, Palomino A, Villareal L, Urbina A, Valle-Onate R, Galarza C, Nikiphorou E, MacGregor A, Morris S, James D, Young A, Alomari MA, Shammaa R, Shqair DM, Alawneh K, Khabour OF, Namey TC, Kolahi S, Haghjoo AG, Lee MJ, Suh CH, Park YW, Bae SC, Lee HS, Bang SY, Kang YM, Shim SC, Lee WK, Park H, Lee J, Wong RH, Huang CH, Cheng-Chung Wei J, Chiou SP, Tu YC, Lee HS, Eroglu Demir S, Rezvani A, Ok S, Kim JO, Lee JS, Sung IH, Kim JH, Kim TH, Lee SH, Choi J, Kim S, Song R, Lee YA, Hong SJ, Yang HI, Lee YA, Lee SH, Matsui K, Yoshida K, Oshikawa H, Kobayashi T, Nakano H, Utsunomiya M, Kimura M, Rezvani A, Seniz O, Eroglu Demir S, Yoon J, Yoon N, Lee S, Kim Y. Poster Presentations (PP01-PP67). Rheumatology (Oxford) 2012. [DOI: 10.1093/rheumatology/kes005] [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: 11/14/2022] Open
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Perez-Fidalgo JA, Bermejo B, Pons V, Guzman C, Bosch A, Lluch A. P2-17-07: Construction of a Predictive Model of Probability of Ovarian Function Recovery in a Series of Premenopausal Breast Cancer Patients with Chemotherapy-Induced Amenorrhea Switched to an Aromatase Inhibitor (AI) after Adjuvant Tamoxifen. Cancer Res 2011. [DOI: 10.1158/0008-5472.sabcs11-p2-17-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: AI therapy is not recommended in breast cancer patients with conserved ovarian function as AI decreases estrogenic feedback leading to an increased of FSH and LH. In patients older than 40 and with prolonged amenorrhea, switching to an AI after tamoxifen therapy is a controversial approach but with an adequate follow-up for early detection of potential menses renewal it might be feasible. Several factors have been identified in the literature as clinical defining variables of CIA while other factors have been associated with high probability of permanent CIA. Among clinical defining variables are time from last menses date (LMD) and low estradiol (E2) levels. Risk variables for permanent CIA are chemotherapy schedule administered and advanced age. We aimed to construct a predictive model to identify high risk of renewal of menses after switching to AI in premenopausal patients with CIA lasting at least 1 year.
Methods: Based on defining and prognostic variables of CIA, a predictive model of high probability of permanent amenorrhea was constructed by assigning a score as follows:
1) Time from LMD to switching date >3 years: 1 point, < 3 years: 0 points
2) E2 levels <20 ng/ml: 1 point, >20 ng/ml or unknown: 0 points
3) Age > 45 years: 1 point, < or = 45: 0 points
4) Chemotherapy regimen administered: dose dense or high doses: 2 points, conventional doses regimen with anthracycline and taxanes: 1 point, conventional doses only anthracycline-based or other: 0 points. Final score obtained from 0 to 5 points was classified in two groups: Low-probability of permanent amenorrhea: score 0–2, and high probability of permanent amenorrhea: score 3–5. To validate this probability model we retrospectively analysed data from a prospective maintained database of early breast cancer patients, clinically premenopausal at diagnosis that were treated in our institution from May 2004 to December 2009. All patients had histologically confirmation of hormone-sensitive breast carcinoma at stage I-III. Therapy included in all cases adjuvant or neoadjuvant chemotherapy and adjuvant tamoxifen and all patients referred a CIA lasting at least 1 year. Since 2006, in most patients E2 levels before switching were determined.
Results: Validation of probability model was performed in our series of 102 premenopausal patients of whom 9 recovered ovarian function (prevalence ratio: 0.088).
Test sensibility of the model was 100% and specificity 56.99%. Positive predictive value was 18.4% and negative predictive value 100%. Positive likelihood ratio was 2.32 and negative likelihood ratio was 0.
Conclusions: Our model of probability of ovarian function recovery is a highly sensitive test that might become a useful tool to identify premenopausal patients with CIA that could be safely switched to AI after tamoxifen. Further validation in a prospective series including more accurate E2 monitoring and follow-up is warranted.
Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P2-17-07.
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Affiliation(s)
- JA Perez-Fidalgo
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
| | - B Bermejo
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
| | - V Pons
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
| | - C Guzman
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
| | - A Bosch
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
| | - A Lluch
- 1Hospital Clínico Universitario, Valencia, Spain; Pfizer Spain, Alcobendas (Madrid), Spain
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Kavanagh S, Gaudig M, Van Baelen B, Adami M, Delgado A, Guzman C, Jedenius E, Schäuble B. Galantamine and behavior in Alzheimer disease: analysis of four trials. Acta Neurol Scand 2011; 124:302-8. [PMID: 21615354 DOI: 10.1111/j.1600-0404.2011.01525.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Many individuals with Alzheimer's disease (AD) experience behavioral and neuropsychiatric symptoms, which may cause caregiver distress and lead to the institutionalization of the patient. This analysis characterized behavioral symptoms and caregiver distress in trials of galantamine and their response to treatment. MATERIALS AND METHODS Data were pooled from four randomized, placebo-controlled clinical trials of galantamine in patients with mild to moderate AD (three studies) or AD plus cerebrovascular disease (one study) (n = 2177). Behavior and associated caregiver distress were assessed in each study using the Neuropsychiatric Inventory (NPI) and NPI distress (NPI-D), respectively. RESULTS After 5/6 months, but not after 3 months, NPI score was significantly improved with galantamine vs placebo (P = 0.013). The benefit was particularly pronounced in patients categorized as having advanced moderate AD. At 5/6 months, there was a numerical benefit of galantamine over placebo in terms of caregiver distress; the difference was statistically significant in patients with moderate or advanced moderate AD. CONCLUSIONS Galantamine reduces behavioral symptoms in patients with mild to moderate AD, leading to reduced caregiver burden. The reductions were greatest in patients with moderate or advanced moderate disease.
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Affiliation(s)
- S Kavanagh
- Johnson & Johnson Pharmaceutical Services, Beerse, Belgium
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Perez-Fidalgo JA, Miranda MJ, Bermejo B, Pons V, Rosello S, Garcia-Garre E, Guzman C, Lluch A. Switching to aromatase inhibitor (AI) after tamoxifen in premenopausal patients with chemotherapy-induced amenorrhea (CIA) after early breast cancer treatment. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e11099] [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: 11/20/2022] Open
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Ozyemisci-Taskiran O, Gunendi Z, Beyazova M, Gunendi Z, Erden Z, Zinnuroglu M, Gogus F, Cevik FC, Yazici S, Cil H, Cevik R, Sarac AJ, Nas K, Park W, Lim MJ, Kwon SR, Yoon JY, Ju GE, Son MJ, Coskun O, Paker N, Bugdayci D, Santos-Moreno P, Cubides MF, Guzman C, Reyes E, Londono J, Valle-Onate R, Zateri C, Kilinc S, Birtane M, Tastekin N, Sabirli F, Paker N, Bugdayci D, Turan Y, Kocaaga Z, Karakoyun-Celik O, Gurgan A, Duransoy A, Filipescu I, Pamfil C, Dumitru B, Garboan I, Rednic S, Bugdayci D, Paker N, Altunalan A, Sahin M, Dere D, Cidem M, Capkin E, Karkucak M, Karaca A, Capkin E, Karkucak M, Akyuz A, Alver A, Turkyilmaz AK, Zengin E, Capkin E, Karkucak M, Akyuz A, Alver A, Ulusoy H, Karaca A, Kesikburun S, Aydemir K, Gunendi Z, Ozgul A, Sezer N, Koseoglu F, Sutbeyaz ST, Oken O, Ozlemis B, Kibar S, Yurdakul S, Findikoglu SY, Hatemi G, Suzen S, Yazici H, Haroon M, Adeeb F, Devlin J, Gradaigh DO, Walker F, Odabasi BB, Sendur OF, Turan Y, Moghimi N, Nadrian H, Moradzadeh R, Nadrian E, Rahimi E, Ediz L, Hiz O, Fethi Ceylan M, Toprak M, Tekeoglu I, Hatemi G, Hamuryudan V, Tascilar K, Ugurlu S, Yazici H, Figen A, Pinar B, Figen T, Ataman S, Emlakcioglu E, Kaymak B, Ozcakar L, Tan AA, de Brouwer S, Kraaimaat F, Sweep F, Donders R, Eijsbouts A, Radstake T, van Riel P, Evers A, Cengiz K, Ilhanli I, Durmus D, Alayli G, Karakoc M, Batmaz I, Tahtasiz M, Nas K, Cevik R, Tekbas E, Yildiz I. Thematic stream: co-morbidity (PP59-PP86): PP59. A Single Dose of Indomethacin does not Prolong Premotor Reaction Time in Young Healthy Adults: A Randomised, Placebo Controlled, Double-Blind, Cross-Over Study. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker099] [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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Guzman C, Butler J. Risikofaktoren für Übergewicht und Adipositas bei Erwachsenen. Eine Untersuchung im Bezirk Berlin-Mitte. Gesundheitswesen 2010. [DOI: 10.1055/s-0030-1266314] [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: 10/19/2022]
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Flisser A, Valdespino JL, García-García L, Guzman C, Aguirre MT, Manon ML, González-González G, Gyorkos TW. Using national health weeks to deliver deworming to children: lessons from Mexico. J Epidemiol Community Health 2008; 62:314-7. [PMID: 18339823 DOI: 10.1136/jech.2007.066423] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Mexico established national health weeks (NHWs) in the early 1980s to promote childhood vaccinations. Because of the cumulative worldwide peer-reviewed scientific evidence, the recommendations of the World Health Organization and other international organisations, the political will of the Mexican government and the infrastructure provided by the NHWs, deworming was added to the NHWs in 1993. In addition to the Ministry of Health, several other government organisations participated in administering the deworming component. Tens of millions of school-age and preschool children between the ages of 2 years and 14 years now receive deworming (a single 400 mg dose of albendazole) approximately every 8 months. Between 1993 and 1998 evaluations were carried out in over 90,000 children to determine the effect of NHWs on the prevalence of geohelminth infections. In 1993, the overall prevalence of Ascaris was 20% and that of Trichuris was 15%. Prevalences decreased significantly over time (p <0.001). Treatment efficacy for Ascaris ranged from 91.6% to 85.3%, and for Trichuris, from 97.9% to 42.6%. In 1998, after conducting 12 NHWs with deworming, the respective prevalences were Ascaris 8% and Trichuris 11%. The experience of Mexico in integrating albendazole into its NHWs shows how deworming can be delivered to large numbers of at-risk children using an existing infrastructure. The NHW approach may be generalisable in other countries with successful national vaccination campaigns. The challenge remaining is to sustain the deworming programme until other longer-term behavioural, environmental and socioeconomic changes can be implemented.
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Affiliation(s)
- A Flisser
- Departamento de Microbiología y Parasitología, Facultad de Medicina, UNAM, Ciudad Universitaria, San Angel, México 04510 DF, Mexico.
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Aguila M, Fernández S, González P, Grande E, Guzman C. Pharmacoeconomic Impact of the Sunitinib Adverse Events (AEs) Prophylaxis Treatment in Spain. Drug Saf 2007. [DOI: 10.2165/00002018-200730100-00111] [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: 11/02/2022]
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Gravalos C, Marquez A, Colomer R, Garcia-Carbonero R, Sastre J, Rivera F, Saenz-Cusi A, Velasco A, Guzman C, Jimeno A. Correlation between HER2/neu overexpression/amplification and clinicopathologic parameters in advanced gastric cancer (AGC) patients (pts): A prospective study. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.4089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4089 Background: Trastuzumab is widely used in the treatment of HER2/neu overexpressing breast cancer pts and also exhibits activity in human gastric cancer cells that overexpress HER2/neu. We are conducting a phase II trial to assess the efficacy and tolerance of trastuzumab in combination with cisplatin as first line chemotherapy (CT) in HER2/neu positive AGC. Objectives: To determinate prospectively the frequency of HER2/neu expression and to evaluate the relationship with clinicopathologic characteristics in advanced gastric adenocarcinoma pts. Methods: Pts were screening for HER2/neu expression/amplification. Immunohistochemistry (IHQ) was performed using herceptest. A fluorescence in situ hybridization (FISH) assay was done when IHQ was = 2. HER2/neu expression was considered negative if IHQ = 0, 1 or IHQ = 2 and FISH negative; and positive if IHQ = 2 and FISH positive or IHQ = 3. Results: A hundred and twenty six pts were tested for HER2/neu status between 2/2004 and 12/2005. 96 (76%) males, median age 61 years (range 29–84). Histological characteristics: all were adenocarcinomas and 47% type intestinal, 33% diffuse, 20% unknown. Primary tumor localization was 101 (80%) gastric and 25 (20%) gastroesophageal junction (GEJ). 115 (91%) pts had metastases (47% liver; 45% lymph nodes; 27% peritoneum; 10% lung; 27% others) and 11 (9%) locoregional advanced disease. Prior therapies: 67 pts surgery, 18 adjuvant/neoadjuvant CT and 14 adjuvant irradiation. HER2/neu expression was negative in 109 (86.5%) cases. The positive cases were: type intestinal (15.5%); type diffuse (10%) (p = 0.54); 9% gastric localization and 29% GEJ tumors were HER2/neu positive too (p = 0.01). Conclusions: HER2/neu overexpression/amplification was found in 13.5% of AGC and is more common in gastroesophageal junction cancers. The study is ongoing. [Table: see text]
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Affiliation(s)
- C. Gravalos
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - A. Marquez
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - R. Colomer
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - R. Garcia-Carbonero
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - J. Sastre
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - F. Rivera
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - A. Saenz-Cusi
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - A. Velasco
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - C. Guzman
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
| | - A. Jimeno
- Hospital 12 De Octubre, Madrid, Spain; Hospital Virgen de la Victoria, Málaga, Spain; Hospital Josep Trueta, Girona, Spain; Hospital Severo Ochoa, Madrid, Spain; Hospital Clinico, Madrid, Spain; Hospital Marques de Vadecilla, Santander, Spain; Hospital Clinico, Zaragoza, Spain; Hospital La Princesa, Madrid, Spain; Roche Farma SA, Madrid, Spain
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Pavez A, Salazar C, Rivera R, Contreras J, Orellana A, Guzman C, Iribarren O, Hernandez H, Elzo J, Moraga D. Description of Endoscopic Ventricular Anatomy in Myelomeningocele. ACTA ACUST UNITED AC 2006; 49:161-7. [PMID: 16921457 DOI: 10.1055/s-2006-932193] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
OBJECTIVE The purpose of this work is to present our endoscopic neuroanatomical findings of a series of myelomeningocele and hydrocephalus patients, treated with endoscopic third ventricular cisternostomy (ETVC), in order to describe ventricular configuration abnormalities in this group of patients, in which this neurosurgical procedure has limited performance. METHOD We checked the videos of 10 endoscopic third ventricular cisternostomies of myelomeningocele patients taken during 24 months as from December 1998. A previous guideline is designed to record anatomic variables in the lateral ventricles, IIIrd ventricle, and basal cisterns. The topic is analyzed in view of the necropsy and imaging background data. RESULTS The ETVC of lateral ventricles showed: absence of septum (9/10); absence of anteroseptal vein (8/10); absence of choroid plexus and thalamostriate vein (0/10); absence of fornix (1/10): small foramen of Monro (4/10). The ETVC of the IIIrd ventricle showed: impossibility of recognizing any mammillary bodies (4/10); presence of septations (5/10); presence of atypical veins in the floor (6/10); translucent floor (5/10); floor umbilications (5/10); absence of infundibulum (4/10); arachnoid adherences (7/10); and visual contact of basilar artery (4/10). CONCLUSION There are categorical structural alterations in the ventricular system of myelomeningocele patients that are well correlated with previous necropsy and imaging reports. The ventricular system of dysraphic children presents severe anatomic alterations, which alter the reference points of the classical endoscopic third ventricular cisternostomy.
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Affiliation(s)
- A Pavez
- Servicio de Neurocirugia del Hospital Van Buren Hospital, Universidad de Valparaiso, Valparaiso, Chile.
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Zenker M, Mayerle J, Lerch MM, Tagariello A, Zerres K, Durie PR, Beier M, Hülskamp G, Guzman C, Rehder H, Beemer FA, Hamel B, Vanlieferinghen P, Gershoni-Baruch R, Vieira MW, Dumic M, Auslender R, Gil-da-Silva-Lopes VL, Steinlicht S, Rauh M, Shalev SA, Thiel C, Ekici AB, Winterpacht A, Kwon YT, Varshavsky A, Reis A. Erratum: Corrigendum: Deficiency of UBR1, a ubiquitin ligase of the N-end rule pathway, causes pancreatic dysfunction, malformations and mental retardation (Johanson-Blizzard syndrome). Nat Genet 2006. [DOI: 10.1038/ng0206-265] [Citation(s) in RCA: 2] [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: 11/09/2022]
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Zenker M, Mayerle J, Lerch MM, Tagariello A, Zerres K, Durie PR, Beier M, Hülskamp G, Guzman C, Rehder H, Beemer FA, Hamel B, Vanlieferinghen P, Gershoni-Baruch R, Vieira MW, Dumic M, Auslender R, Gil-da-Silva-Lopes VL, Steinlicht S, Rauh M, Shalev SA, Thiel C, Ekici AB, Winterpacht A, Kwon YT, Varshavsky A, Reis A. Deficiency of UBR1, a ubiquitin ligase of the N-end rule pathway, causes pancreatic dysfunction, malformations and mental retardation (Johanson-Blizzard syndrome). Nat Genet 2005; 37:1345-50. [PMID: 16311597 DOI: 10.1038/ng1681] [Citation(s) in RCA: 200] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2005] [Accepted: 09/08/2005] [Indexed: 11/08/2022]
Abstract
Johanson-Blizzard syndrome (OMIM 243800) is an autosomal recessive disorder that includes congenital exocrine pancreatic insufficiency, multiple malformations such as nasal wing aplasia, and frequent mental retardation. We mapped the disease-associated locus to chromosome 15q14-21.1 and identified mutations, mostly truncating ones, in the gene UBR1 in 12 unrelated families with Johanson-Blizzard syndrome. UBR1 encodes one of at least four functionally overlapping E3 ubiquitin ligases of the N-end rule pathway, a conserved proteolytic system whose substrates include proteins with destabilizing N-terminal residues. Pancreas of individuals with Johanson-Blizzard syndrome did not express UBR1 and had intrauterine-onset destructive pancreatitis. In addition, we found that Ubr1(-/-) mice, whose previously reported phenotypes include reduced weight and behavioral abnormalities, had an exocrine pancreatic insufficiency, with impaired stimulus-secretion coupling and increased susceptibility to pancreatic injury. Our findings indicate that deficiency of UBR1 perturbs the pancreas' acinar cells and other organs, presumably owing to metabolic stabilization of specific substrates of the N-end rule pathway.
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Affiliation(s)
- Martin Zenker
- Institute of Human Genetics, University of Erlangen-Nuremberg, Schwabachanlage 10, 91054 Erlangen, Germany.
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Garcia-Carbonero R, Supko JG, Maki RG, Manola J, Ryan DP, Harmon D, Puchalski TA, Goss G, Seiden MV, Waxman A, Quigley MT, Lopez T, Sancho MA, Jimeno J, Guzman C, Demetri GD. Ecteinascidin-743 (ET-743) for chemotherapy-naive patients with advanced soft tissue sarcomas: multicenter phase II and pharmacokinetic study. J Clin Oncol 2005; 23:5484-92. [PMID: 16110008 DOI: 10.1200/jco.2005.05.028] [Citation(s) in RCA: 152] [Impact Index Per Article: 8.0] [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
PURPOSE To evaluate the response rate, toxicity profile, and pharmacokinetics of ecteinascidin-743 (ET-743) as first-line therapy in patients with unresectable advanced soft tissue sarcoma (STS). PATIENTS AND METHODS Thirty-six patients with STS were enrolled onto the study between September 1999 and August 2000. Patients were treated with 1.5 mg/m2 of ET-743 given as a 24-hour continuous intravenous (IV) infusion every 21 days. Pharmacokinetic sampling was performed in 23 patients. RESULTS One complete and five partial responses were achieved in 35 assessable patients for an overall response rate of 17.1% (95% CI, 6.6% to 33.6%). In addition, one patient had a minor response, leading to an overall clinical benefit of 20%. Neutropenia and transaminitis were the main grade 3 to 4 toxicities, which occurred in 33% and 36% of the patients. The estimated 1-year progression-free and overall survival rates were 21% (95% CI, 11% to 41%) and 72% (95% CI, 59% to 88%), respectively. Total body clearance (L/h) was not significantly correlated with body-surface area (r = -0.28; P = .21). Mild hepatic impairment or the extent of prior cytotoxic therapy does not seem to contribute significantly to the high interpatient variability (49%) in the clearance of this drug. Severity of treatment-related toxicity was not correlated with pharmacokinetic variables. CONCLUSION ET-743 demonstrates clinical activity as first-line therapy against STS with acceptable toxicity. Additional studies to establish empirical dosing guidelines may be necessary to improve the safety of the drug in patients with varying degrees of hepatic dysfunction and definitively establish the role of ET-743 for patients with these malignancies.
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Affiliation(s)
- R Garcia-Carbonero
- Dana-Farber Cancer Institute, Harvard Medical School, 44 Binney St, Boston, Massachusetts 02115, USA
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Quintela-Fandino M, Hitt R, Martinez J, Gamarra S, Jimeno A, Amador ML, Guzman C, Montero J, Cortes Funes H. Prognostic value of breast cancer m-RNA transcripts (Ts) detection by RT-PCR in GCSF stimulated peripheral blood (PB) after adjuvant chemotherapy (ACT) in high-risk breast cancer patients (HRBCP). J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.9689] [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: 11/20/2022] Open
Affiliation(s)
| | - R. Hitt
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - J. Martinez
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - S. Gamarra
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - A. Jimeno
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - M. L. Amador
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - C. Guzman
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - J. Montero
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
| | - H. Cortes Funes
- Hosp 12 de Octubre, Madrid, Spain; Hosp 12 de Ocutbre, Madrid, Spain
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Garcia-Carbonero R, Supko JG, Manola J, Seiden MV, Harmon D, Ryan DP, Quigley MT, Merriam P, Canniff J, Goss G, Matulonis U, Maki RG, Lopez T, Puchalski TA, Sancho MA, Gomez J, Guzman C, Jimeno J, Demetri GD. Phase II and pharmacokinetic study of ecteinascidin 743 in patients with progressive sarcomas of soft tissues refractory to chemotherapy. J Clin Oncol 2004; 22:1480-90. [PMID: 15084621 DOI: 10.1200/jco.2004.02.098] [Citation(s) in RCA: 243] [Impact Index Per Article: 12.2] [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: 11/20/2022] Open
Abstract
PURPOSE To assess the efficacy of the marine-derived alkaloid ecteinascidin 743 (ET-743) in patients with soft tissue sarcomas that progressed despite prior conventional chemotherapy and to characterize the pharmacokinetic profiles of ET-743 in this patient population. PATIENTS AND METHODS Thirty-six previously treated soft tissue sarcoma patients from three institutions received ET-743 as a 24-hour continuous intravenous (IV) infusion at a dose of 1,500 microg/m(2) every 3 weeks. Pharmacokinetic studies were also performed. Patients were restaged every two cycles for response by objective criteria. RESULTS Objective responses were observed in three patients, with one complete response and two partial responses, for an overall response rate of 8% (95% CI, 2% to 23%). Responses were durable for up to 20 months. Two minor responses (43% and 47% tumor reduction) were observed, for an overall clinical benefit rate of 14%. The predominant toxicities were neutropenia and self-limited transaminitis of grade 3 to 4 severity in 34% and 26% of patients, respectively. The estimated 1-year time to progression and overall survival rates were 9% (95% CI, 3% to 27%) and 53% (95% CI, 39% to 73%), respectively. The maximum observed plasma concentration and total plasma clearance of ET-743 (mean +/- standard deviation), 1.04 +/- 0.48 ng/mL and 35.6 +/- 16.2 L/h/m(2), respectively, were consistent with previously reported values from phase I studies of the drug given as a 24-hour IV infusion. CONCLUSION ET-743 is a promising new option for the management of several histologic subtypes of sarcoma. Durable objective responses were obtained in a subset of sarcoma patients with disease progression despite prior chemotherapy. Additionally, the relatively high survival rate noted in this series of previously treated patients further justifies development of this agent.
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Affiliation(s)
- R Garcia-Carbonero
- Center for Sarcoma and Bone Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Shields Warren Bldg, Room G530, 44 Binney St, Boston, MA 02115, USA.
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van Kesteren C, Mathĵt RA, López-Lázaro L, Cvitkovic E, Taamma A, Jimeno JM, Guzman C, Schellens JH, Misset JL, Brain E, Hillebrand MJ, Rosing H, Beijnen JH. A comparison of limited sampling strategies for prediction of Ecteinascidin 743 clearance when administered as a 24-h infusion. Cancer Chemother Pharmacol 2001; 48:459-66. [PMID: 11800026 DOI: 10.1007/s002800100368] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
PURPOSE Ecteinascidin 743 (ET-743) is a novel, marine-derived anticancer agent currently under clinical development for the treatment of solid tumors. The aim of this study was to develop and validate limited sampling strategies for the prediction of ET-743 clearance in phase II studies, using two techniques: the stepwise linear regression approach and the Bayesian estimation approach. METHODS Data from a phase I dose-finding study were used with ET-743 administered as a 24-h infusion. Plasma concentration time data from 34 patients treated with 1200. 1500 or 1800 microg/m2 ET-743 were randomly divided into an index data set, used for the development of the strategies, and a validation data set. With the linear regression approach, clearance (obtained by non-compartmental analysis) was correlated with the ratios of dose to the observed concentrations. For the Bayesian approach a three-compartment population pharmacokinetic model was developed; optimal time-points were selected using the D-optimality algorithm. The strategies were compared by assessment of their predictive performance of CL in the validation data set. RESULTS The linear regression method yielded a single-point sampling schedule with no significant bias and acceptable precision (-0.03% and 21%, respectively). With the Bayesian approach, a three-sample strategy was selected which resulted in less-accurate, but unbiased, predictions (bias 13%, precision 34%). CONCLUSIONS Optimal sampling strategies were developed and validated for estimation of ET-743 clearance. Although the linear regression approach showed slightly better predictive performance, the Bayesian approach is preferred for the current phase II studies as it is more robust and flexible and allows the description of the full pharmacokinetic profile.
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Affiliation(s)
- C van Kesteren
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam.
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Raymond E, Paz-Ares L, Izquierdo M, Belanger K, Maroun J, Bowman A, Anthoney A, Jodrell D, Armand J, Cortes-Funes H, Germa-Lluch J, Twelves C, Celli N, Guzman C, Jimeno J. Phase I (PI) trials with aplidine (APL), a new marine derived anticancer compound. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)80599-2] [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: 10/26/2022]
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Le Cesne A, Misset J, Demetri G, Lopez-Martin J, Blay J, van Oosterom A, Judson I, Brain E, Yovine A, Maki R, Gomez J, Guzman C. Consistent evidence of activity of ecteinascidin (ET-743) in pretreated, advanced soft tissue sarcoma (ASTS): results from a pooled analysis of three pivotal phase II clinical trials (p2ct) and safety profile of a 24 h infusion schedule. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)80606-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Forouzesh B, Hidalgo M, Denis L, Schwartz G, Hammond L, Monroe P, Guzman C, Supko J, Jimeno J, Rowinsky E. Phase I and pharmacokinetic study of ET-743, a minor groove DNA binder, administered weekly to patients with advanced cancer. Eur J Cancer 2001. [DOI: 10.1016/s0959-8049(01)80598-0] [Citation(s) in RCA: 5] [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: 11/29/2022]
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Taamma A, Misset JL, Riofrio M, Guzman C, Brain E, Lopez Lazaro L, Rosing H, Jimeno JM, Cvitkovic E. Phase I and pharmacokinetic study of ecteinascidin-743, a new marine compound, administered as a 24-hour continuous infusion in patients with solid tumors. J Clin Oncol 2001; 19:1256-65. [PMID: 11230466 DOI: 10.1200/jco.2001.19.5.1256] [Citation(s) in RCA: 133] [Impact Index Per Article: 5.8] [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
PURPOSE To define the maximum-tolerated dose (MTD) and the phase II recommended dose (RD) of ecteinascidin-743 (ET-743) given as a 24-hour continuous infusion every 3 weeks to patients with treatment-refractory solid tumors. PATIENTS AND METHODS Fifty-two patients received a total of 158 cycles of ET-743 at one of nine dose levels (DLs) ranging from 50 to 1,800 microg/m(2). RESULTS The MTD was defined as 1,800 microg/m(2) (DL 9), and the phase II RD was 1,500 microg/m(2) (DL 8) for moderately pretreated patients with performance status (PS) 0 to 1 and good hepatobiliary function. Neutropenia and thrombocytopenia were the dose-limiting toxicities (DLTs) and were severe at the MTD (1,800 microg/m(2)) in 94% and 25% of cycles, respectively. At the RD (1,500 microg/m(2)), neutropenia and thrombocytopenia were present in 33% and 10% of cycles, respectively. Transient acute elevated transaminase levels occurred in almost all cycles and was severe in 38% of cycles. Severe toxicities and DLTs were observed in patients with poor PS or abnormal liver function or who had received a large number of previous chemotherapy regimens. Antitumor activity was observed at the three highest DLs, including three partial responses (breast cancer, osteosarcoma, and liposarcoma), and four patients (all with progressing soft tissue sarcomas) had stable disease lasting > or = 3 months. Pharmacokinetic studies were performed on all patients for at least the first cycle, giving a linear pharmacokinetic profile; this showed a relationship between area under the curve (AUC) and transaminitis grade and a clear correlation between AUC and severe hematologic toxicity likelihood. CONCLUSION The RD for a 24-hour continuous intravenous infusion of ET-743 is 1,500 microg/m(2), with the most prevalent DLTs being hematologic. Patients with minor baseline hepatobiliary function abnormalities have a higher likelihood of severe hematologic toxicities and AUC-related DLTs, requiring dose adjustments or delays.
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Affiliation(s)
- A Taamma
- Hôpital Paul Brousse, Villejuif, France
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van Kesteren C, Cvitkovic E, Taamma A, López-Lázaro L, Jimeno JM, Guzman C, Math t RA, Schellens JH, Misset JL, Brain E, Hillebrand MJ, Rosing H, Beijnen JH. Pharmacokinetics and pharmacodynamics of the novel marine-derived anticancer agent ecteinascidin 743 in a phase I dose-finding study. Clin Cancer Res 2000; 6:4725-32. [PMID: 11156226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Ecteinascidin (ET) 743 is an anticancer agent derived from the Caribbean tunicate Ecteinascidia turbinata. Preclinical studies revealed activity of ET-743 against different tumor types. A Phase I clinical trial was designed with ET-743 to identify the maximum tolerated dose and dose-limiting toxicities (DLTs). Furthermore, the pharmacokinetics of ET-743 and relationships with pharmacodynamics were evaluated. Adult patients with solid, resistant tumors received ET-743 as a 24-h i.v. infusion every 21 days. Blood samples were obtained during the first treatment course and in several consecutive courses. Noncompartmental pharmacokinetic analysis was performed. Relationships between pharmacokinetics and hepatic and hematological toxicities were explored. Fifty-two patients were treated at nine dose levels (50-1800 microg/m2). The DLTs, neutropenia and thrombocytopenia, were experienced at 1800 microg/m2. Twenty-five patients were treated at the recommended Phase II dose of 1500 microg/m2. At this dose, the mean value +/- SD for total body clearance was 59 +/- 31 liters/h, and the mean t(1/2) was 89 +/- 41 h. Pharmacokinetics were linear over the dose range tested. Prior exposure to ET-743 did not alter the pharmacokinetics in subsequent courses. The percentage of decrease in WBC count and absolute neutrophil count was correlated to the area under the plasma concentration versus time curve (AUC). Hepatic toxicity, defined as rise in alanine aminotransferase and aspartate aminotransferase, increased with dose and AUC but was reversible and not dose limiting. In conclusion, ET-743 administered as a 24-h i.v. infusion at a dose of 1500 microg/m2 is clinically feasible; severe thrombocytopenia and neutropenia are the DLTs.
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Affiliation(s)
- C van Kesteren
- Department of Pharmacy and Pharmacology, The Netherlands Cancer Institute/Slotervaart Hospital, Amsterdam.
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Delaloge S, Riofrio M, Brain E, Cottu P, Taamma A, Marty M, Guzman C, Misset J, Cvitkovic E. Ecteinascidin (ET-743) in heavily pretreated refractory sarcomas: Preliminary evidence of activity. Eur J Cancer 1999. [DOI: 10.1016/s0959-8049(99)81500-7] [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: 10/27/2022]
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Abstract
PURPOSE To determine whether patients with complete, acquired nasolacrimal duct obstruction may be treated with broad spectrum oral antibiotics and office lacrimal irrigation. METHODS In a retrospective review, patients with complete, primary acquired nasolacrimal duct obstruction (NLDO) were divided by predominant symptoms and signs into two main groups: (a) those with tearing and/or mucous discharge and (b) those with previous acute dacryocystitis and/or lacrimal sac mucocele. All patients received a therapeutic trial of oral and topical antibiotics followed by lacrimal irrigation. RESULTS Five of 55 patients with tearing and/or mucous discharge showed significant improvement after treatment with a mean follow-up of 16.5 months. A sixth patient with mucous and tearing had resolution of the mucous discharge but persistent tearing and blockage of the nasolacrimal system to irrigation. Two of 20 patients with lacrimal sac mucocele or history of acute dacryocystitis avoided surgery while 18 opted for early lacrimal surgical intervention. CONCLUSIONS Conservative management of complete acquired NLDO consisting of oral and topical antibiotics and appropriately timed office lacrimal drainage system irrigation may be considered in selected patients.
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Affiliation(s)
- J A Mauriello
- Department of Ophthalmology, UMD-New Jersey Medical School, Newark, USA
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Abstract
We report two cases of postbiopsy duodenal hematoma and review 14 additional cases. Duodenal hematoma predominantly occurs in children and presents with abdominal pain, vomiting, and pancreatitis. Upper gastrointestinal series, abdominal ultrasound, and CT scan are useful in visualizing the hematoma. No comparative studies of the usefulness of these techniques are available, but a CT is indicated if perforation is suspected. The treatment is conservative if no perforation is detected, and resolution of symptoms generally occurs within 2 wk.
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Affiliation(s)
- C Guzman
- Combined Program in Pediatric Gastroenterology and Nutrition, and Department of Radiology, Children's Hospital, Boston, Massachusetts 02115, USA
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Affiliation(s)
- C Guzman
- Department of Pediatrics, National Children's Hospital, University of Costa Rica, San Jose, America Central
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Stuss DT, Peterkin I, Guzman DA, Guzman C, Troyer AK. Chronic obstructive pulmonary disease: effects of hypoxia on neurological and neuropsychological measures. J Clin Exp Neuropsychol 1997; 19:515-24. [PMID: 9342687 DOI: 10.1080/01688639708403741] [Citation(s) in RCA: 79] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Eighteen patients with chronic obstructive pulmonary disease (COPD) were administered a series of pulmonary, neurological, and neuropsychological measures to test if there was an effect of COPD on neurological and cognitive functioning. Overall, there was no evidence of general dementia in this sample. Measures of immediate and delayed memory, complex attention, and speed of information processing correlated highly with arterial carbon dioxide partial pressure and, to a lesser extent, with oxygen partial pressure. Measures of language abilities, perceptual-motor functioning, and simple attention generally were not related to arterial gas pressures. A similar pattern of findings was obtained when group differences were examined between participants classified as severely hypoxic or mildly hypoxic, although group differences were mitigated by premorbid IQ differences. Hypoxia in COPD results in a relatively focused pattern of impairment in measures of memory function and tasks requiring attention allocation. The memory dysfunction may be related to involvement of limbic memory regions necessary for explicit memory. The attentional deficits were attributed to diffuse brain involvement resulting in reduced resource allocation. Early diagnosis and treatment of the hypoxia is essential.
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Affiliation(s)
- D T Stuss
- Ottawa General Hospital, Faculty of Medicine, University of Ottawa, Ontario, Canada
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Medina-Rodriguez F, Guzman C, Jara LJ, Hermida C, Alboukrek D, Cervera H, Miranda JM, Fraga A. Rheumatic manifestations in human immunodeficiency virus positive and negative individuals: a study of 2 populations with similar risk factors. J Rheumatol Suppl 1993; 20:1880-4. [PMID: 8308773] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
OBJECTIVE Assess the impact of human immunodeficiency virus (HIV) infection on the onset of rheumatic manifestations in HIV+ patients, and to compare them with a control HIV- group with similar risk factors. METHODS We prospectively studied 74 consecutive HIV+ patients, looking for clinical and laboratory findings of rheumatic manifestations and compared them with 72 control subjects with similar risk factors for HIV who tested negative for HIV. RESULTS Rheumatic manifestations were more frequently observed in the HIV+ group than the HIV-group (p < 0.001): Arthralgias were found in 34 (45%), arthritis in 8 (10%), and Reiter's syndrome in 6 (8%). Laboratory findings revealed rheumatoid factor in 16 (21%) HIV+ vs 2 (2%) in HIV-, antinuclear antibodies in 13 (17%) HIV+ vs 0 in HIV-, IgG anticardiolipin antibodies in 70 (94%) HIV+ vs 7 (9%) in HIV- (p < 0.001). Hyperuricemia was found in 31 HIV+ patients (41%), and hypouricemia in 4 (5%), compared with none in the HIV- group (p < 0.0001). Neoplasia were identified in 13 HIV+ patients, in 7 associated with hyperuricemia and 3 with hypouricemia. Of interest, 2 patients had urate abnormalities before the diagnosis of neoplasia. CONCLUSIONS Our study suggests that rheumatic manifestations are more prevalent in HIV+ patients. In advanced HIV infection, hypo and hyperuricemia may be considered markers of neoplasia.
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Affiliation(s)
- F Medina-Rodriguez
- Rheumatic Diseases Unit, Hospital de Especialidades, Mexico City, Mexico
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Nicolini S, Ascorra C, Guzman C, Latife AV. [Actinic cheilitis in Quinta fishing workers: prevalence and associated histopathological aspects]. Odontol Chil 1989; 37:169-74. [PMID: 2641953] [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: 01/01/2023]
Abstract
The purpose of the present investigation was to study the occurrence and degree of severity of the actinic cheilitis in a sample of 566 artisan fishermen of Valparaíso, Chile. The condition was found in 43% of the sample, the degree of severity was an 8% for the acute expression and a 35% for the chronic type of the disease. A direct relationship between the number of years spent on sun exposure and the degree of severity of the vermillion alterations was found, being the patients between 16 and 45 years old the group most severely involved, a finding similar to the data reported in the current literature. The prone complexion was the fair one: those fishermen with blond or red hair, blue or green eyes and fair skin showed both clinical and histopathologically early disturbances of degenerative nature in the collagenous component of the connective tissue and in the epithelial surface.
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Abstract
To evaluate the roles of ornithine decarboxylase (ODC) and polyamines in the regulation of epithelial repair, rabbit mid-small intestine after transient ischaemic villus injury in the presence and absence of DL-difluoromethylornithine (DFMO), an irreversible inhibitor of ODC was studied. Rabbits received 2% (w/v) DFMO in drinking water for two days before undergoing a sham laparotomy, or a 90 minute mesenteric vascular occlusion of 20 cm of mid-intestine. DFMO fed and control rabbits were studied four, 24, 72, or 120 hours after this ischaemic intestinal injury. In controls, ischaemic injury caused shortened villi at four hours (p less than 0.01), diminished mucosal sucrase and alkaline phosphatase activities at 24 hours (p less than 0.05), but raised ODC (p less than 0.001) and thymidine kinase (p less than 0.01) activities at four hours with recovery by 72 hours. DFMO treatment significantly reduced ODC activity at all stages of the experiment and significantly inhibited the rise in activity observed after injury (p less than 0.01). Mucosal concentrations of the polyamines, spermidine and spermine, were similar in the sham operated groups; four hours and 24 hours after ischaemia, they increased in the DFMO animals (p less than 0.01) but fell (p less than 0.05) in those that did not receive DFMO. After ischaemic injury, DFMO treatment inhibited ODC but failed to influence recovery of villus structure or enzyme activities in the small intestine. We conclude that ODC and the polyamines, spermidine and spermine, are not key regulators of small intestinal repair after transient ischaemia.
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Affiliation(s)
- C Guzman
- Department of Paediatrics, University of Toronto, Ontario, Canada
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Abstract
The safety of percutaneous liver biopsy with a 1.2 mm Menghini needle in infants aged one year or less was investigated. One hundred and eighty four procedures performed from 1975 to 1985 were reviewed. There were no deaths or major complications within 48 hours associated with the procedure. In five instances specific complications occurred: a drop in haemoglobin concentration (three), transient hypotension (one), and haematoma at the biopsy site (one). The result of liver biopsy was diagnostic in 83% of cases, compatible with unspecified metabolic disease in 8%, and normal or not diagnostic in 9%. This study suggests that percutaneous liver biopsy can be performed with relative safety in small infants if coagulation is normal and there are no major contraindications, and the results yield important diagnostic information which cannot be obtained using less invasive procedures.
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Affiliation(s)
- S Lichtman
- Division of Gastroenterology, Hospital for Sick Children, Toronto, Canada
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Abstract
To assess the effect of chronic undernutrition on intestinal epithelial repair after injury, we studied 10-wk-old rabbits, nutritionally deprived for 6 wk (body weight 1.95 +/- 0.2 kg versus controls, 2.68 +/- 0.7 kg, p less than 0.001). Intestinal structure and function were assessed 4, 24, 48, 72, or 96 h after a 90-min vascular occlusion of a 20-cm segment of midintestine in undernourished and control-diet animals. Tritiated thymidine autoradiography showed that movement of epithelial cells along the crypt-villus axis was significantly curtailed in undernourished rabbits after sham operation or after ischemic injury. In sham-operated rabbits, no significant differences were observed in mucosal structure, disaccharidase and Na-K-ATPase activities, or Na transport (Ussing chambers) between nutritionally deprived and control diet rabbits. Four and 24 h after ischemic injury, significant but similar structural and functional small intestinal abnormalities occurred in both diet groups; recovery of enzyme function was not significantly delayed but crypt-villus length recovery was minimally delayed in undernourished rabbits. Glucose-stimulated Na absorption diminished in short circuited jejunum from malnourished but not from control diet animals 24 h after injury and was normal in both diet groups at 72 h. After transient small intestinal villus cell injury we observed suppressed epithelial proliferation but no consistent impact on epithelial differentiation in nutritionally deprived rabbits.
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Llauro-Darricades M, Pichot C, Guillot J, Rios L, Cruz M, Guzman C. Microstructure study of styrene/n-butyl acrylate emulsion copolymers by 13C nuclear magnetic resonance spectroscopy. POLYMER 1986. [DOI: 10.1016/0032-3861(86)90300-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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