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García-Ureña M, López-Monclús J, Blázquez LA, Robín A, Castellón C, López P, Palencia N, Melero D, Cruz A, Jiménez C, Becerra R, González E, Aguilera A, Moreno A, Esther Q, Luis PJ, Josefa CM, Teresa AM, Sol V, Beatriz R, Alberto M, Oscar B, Carlos SC, Crespi M, Colombo F, Troci A, Foschi D. Topic: Incisional Hernia — “Easy case” as daily case: open vs lap, where the mesh, which fixation…in center midline cases. Hernia 2015; 19 Suppl 1:S354. [DOI: 10.1007/bf03355390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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González E, Sarrazin M. Solution of solid mechanic equilibrium problems by power series. Int J CMEM 2015. [DOI: 10.2495/cmem-v3-n1-33-48] [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: 11/09/2022] Open
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104
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González E, Pérez-Hinojosa S, Alarcón J, Peñalver M. Knowledge of Andalusian paediatricians and parents about early-onset tooth decay. Anales de Pediatría (English Edition) 2015. [DOI: 10.1016/j.anpede.2014.01.005] [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: 11/17/2022] Open
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105
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Vera L, González E, Díaz O, Delgado S. Application of a backwashing strategy based on transmembrane pressure set-point in a tertiary submerged membrane bioreactor. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2014.07.069] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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106
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Sprockel JJ, Diaztagle JJ, Alzate W, González E. Redes neuronales en el diagnóstico del infarto agudo de miocardio. Revista Colombiana de Cardiología 2014. [DOI: 10.1016/j.rccar.2013.10.001] [Citation(s) in RCA: 4] [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: 11/24/2022] Open
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107
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Vallarino JG, Gainza-Cortés F, Verdugo-Alegría C, González E, Moreno YM. Abiotic stresses differentially affect the expression of O-methyltransferase genes related to methoxypyrazine biosynthesis in seeded and parthenocarpic fruits of Vitis vinifera (L.). Food Chem 2014; 154:117-26. [DOI: 10.1016/j.foodchem.2013.12.097] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Revised: 12/17/2013] [Accepted: 12/29/2013] [Indexed: 02/03/2023]
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González-Pérez M, Susi R, Antona B, Barrio A, González E. The Computer-Vision Symptom Scale (CVSS17): development and initial validation. Invest Ophthalmol Vis Sci 2014; 55:4504-11. [PMID: 24938516 DOI: 10.1167/iovs.13-13818] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To develop a questionnaire (in Spanish) to measure computer-related visual and ocular symptoms (CRVOS). METHODS A pilot questionnaire was created by consulting the literature, clinicians, and video display terminal (VDT) workers. The replies of 636 subjects completing the questionnaire were assessed using the Rasch model and conventional statistics to generate a new scale, designated the Computer-Vision Symptom Scale (CVSS17). Validity and reliability were determined by Rasch fit statistics, principal components analysis (PCA), person separation, differential item functioning (DIF), and item-person targeting. To assess construct validity, the CVSS17 was correlated with a Rasch-based visual discomfort scale (VDS) in 163 VDT workers, this group completed the CVSS17 twice in order to assess test-retest reliability (two-way single-measure intraclass correlation coefficient [ICC] and their 95% confidence intervals, and the coefficient of repeatability [COR]). RESULTS The CVSS17 contains 17 items exploring 15 different symptoms. These items showed good reliability and internal consistency (mean square infit and outfit 0.88-1.17, eigenvalue for the first residual PCA component 1.37, person separation 2.85, and no DIF). Pearson's correlation with VDS scores was 0.60 (P < 0.001). Intraclass correlation coefficient for test-retest reliability was 0.849 (95% confidence interval [CI], 0.800-0.887), and COR was 8.14. CONCLUSIONS The Rasch-based linear-scale CVSS17 emerged as a useful tool to quantify CRVOS in computer workers. : Spanish Abstract.
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Affiliation(s)
| | - Rosario Susi
- Faculty of Statistical Studies, Universidad Complutense de Madrid, Madrid, Spain
| | - Beatriz Antona
- Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Ana Barrio
- Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Enrique González
- Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
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González E, Lino J, Deriabina A, Herrera JNF, Poltev VI. Interactions of DNA bases with individual water molecules. Molecular mechanics and quantum mechanics computation results vs. experimental data. Biophysics (Nagoya-shi) 2014. [DOI: 10.1134/s0006350913050047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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110
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Blümel JE, Chedraui P, Barón G, Benítez Z, Flores D, Espinoza MT, Gomez G, González E, Hernández L, Lima S, Martino M, Montaño A, Monterrosa A, Mostajo D, Ojeda E, Onatra W, Robles C, Saavedra J, Sánchez H, Tserotas K, Vallejo MS, Vallejo C. A multicentric study regarding the use of hormone therapy during female mid-age (REDLINC VI). Climacteric 2014; 17:433-41. [PMID: 24443950 DOI: 10.3109/13697137.2014.882305] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Menopausal hormone therapy (HT) has shown benefits for women; however, associated drawbacks (i.e. risks, costs, fears) have currently determined its low use. OBJECTIVE To determine the prevalence of current HT use among mid-aged women and describe the characteristics of those who have never used, have abandoned or are currently using HT. In addition, reasons for not using HT were analyzed. METHOD This was a cross-sectional study that analyzed a total of 6731 otherwise healthy women (45-59 years old) of 15 cities in 11 Latin American countries. Participants were requested to fill out the Menopause Rating Scale (MRS) and a questionnaire containing sociodemographic data and items regarding the menopause and HT use. RESULTS The prevalence of current HT use was 12.5%. Oral HT (43.7%) was the most frequently used type of HT, followed by transdermal types (17.7%). The main factors related to the current use of HT included: positive perceptions regarding HT (odds ratio (OR) 11.53, 95% confidence interval (CI) 9.41-14.13), being postmenopausal (OR 3.47, 95% CI 2.75-4.36) and having a better socioeconomic level. A total of 48.8% of surveyed women had used HT in the past, but abandoned it due to symptom improvement or being unconcerned; fear of cancer or any other secondary effects were also reported but in less than 10%. Among women who had never used HT, 28% reported the lack of medical prescription as the main reason, followed by the absence of symptoms (27.8%). Among those reporting lack of prescription as the main reason for not using HT, 30.6% currently had severe menopausal symptoms (total MRS score > 16); 19.5% of women were using alternative 'natural' therapies, with 35.1% of them displaying severe menopausal symptoms as compared to a 22.5% observed among current HT users. CONCLUSION The use of HT has not regained the rates observed a decade ago. Positive perceptions regarding HT were related to a higher use. Lack of medical prescription was the main reason for not using HT among non-users, many of whom were currently displaying severe menopausal symptoms.
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Salas C, Gutiérrez L, De Ingunza L, González E, Díaz L, Villanego I, Díaz V, Jaén J. PO-0738: Imagen guided radiotherapy in prostate cancer: Interobservator variability with CBCT Mv and fiducial markers. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30856-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Ruiz A, Hernández Y, Cabal C, González E, Veintemillas-Verdaguer S, Martínez E, Morales MP. Biodistribution and pharmacokinetics of uniform magnetite nanoparticles chemically modified with polyethylene glycol. Nanoscale 2013; 5:11400-11408. [PMID: 23832394 DOI: 10.1039/c3nr01412f] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The influence of polyethylene glycol (PEG) grafting on the pharmacokinetics, biodistribution and elimination of iron oxide nanoparticles is studied in this work. Magnetite nanoparticles (12 nm) were obtained via thermal decomposition of an iron coordination complex as a precursor. Particles were coated with meso-2,3-dimercaptosuccinic acid (DMSA) and conjugated to PEG-derived molecules by 1-ethyl-3-[3-dimethylaminopropyl]carbodiimide (EDC) chemistry. Using a rat model, we explored the nanoparticle biodistribution pattern in blood and in different organs (liver, spleen and lungs) after intravenous administration of the product. The time of residence in blood was measured from the evolution of water proton relaxivities with time and Fe analysis in blood samples. The results showed that the residence time was doubled for PEG coated nanoparticles and consequently particle accumulation in liver and spleen was reduced. Post-mortem histological analyses showed no alterations in the liver and confirm heterogeneous distribution of NPs in the organ, in agreement with magnetic measurements and iron analysis. Finally, by successive magnetic resonance images we studied the evolution of contrast in the liver and measured the absorption, time of residence and excretion of nanoparticles in the liver during a one month period. On the basis of these results we propose different metabolic routes that determine the fate of magnetic nanoparticles.
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Affiliation(s)
- A Ruiz
- Departamento de Biomateriales y Materiales Bioinspirados, Instituto de Ciencia de Materiales de Madrid, CSIC, Sor Juana Inés de la Cruz 3, Cantoblanco, 28049 Madrid, Spain.
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113
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Fernández-Ruiz M, López-Medrano F, Andrés A, Morales JM, Lumbreras C, San-Juan R, Polanco N, González E, Aguado JM. Serum iron parameters in the early post-transplant period and infection risk in kidney transplant recipients. Transpl Infect Dis 2013; 15:600-11. [PMID: 24011120 DOI: 10.1111/tid.12137] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Revised: 03/05/2013] [Accepted: 04/11/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND The impact of iron metabolism on the risk of infectious complications has been demonstrated in various immunosuppressed populations. However, no previous studies have assessed this potential association in kidney transplant (KT) recipients. METHODS We prospectively analyzed 228 patients undergoing KT at our institution from November 2008 to February 2011. Serum iron parameters (iron level, ferritin, total iron-binding capacity, unsaturated iron-binding capacity, transferrin, and transferrin saturation) were assessed within the first 2 weeks after transplantation (median interval, 3 days; interquartile [Q1 -Q3 ] range, 1-6 days), and before the occurrence of the first infectious episode (median interval, 26 days; Q1 -Q3 range, 11-76 days). Primary outcome was the occurrence of any episode of infection during the first year. Multivariate-adjusted hazard ratios (aHRs) were estimated by Cox regression models. RESULTS Patients with ferritin level ≥ 500 ng/mL had higher incidence rates (per 1000 transplant-days) of overall infection (P = 0.017), bacterial infection (P = 0.002), and bloodstream infection (P = 0.011) during the first post-transplant year. One-year infection-free survival rate was lower in these recipients (26% vs. 41%; P = 0.004). On multivariate analysis, after adjusting for potential confounders, ferritin emerged as an independent predictor of overall infection (aHR [per unitary increment], 1.001; P = 0.006), and bacterial infection (aHR [per unitary increment], 1.001; P = 0.020). CONCLUSION Monitoring of serum iron parameters in the early post-transplant period may be useful in predicting the occurrence of infection in KT recipients, although further studies should be carried out to confirm this preliminary finding.
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Affiliation(s)
- M Fernández-Ruiz
- Unit of Infectious Diseases, Hospital Universitario "12 de Octubre", Instituto de Investigación Hospital "12 de Octubre" (i+12), School of Medicine, Universidad Complutense, Madrid, Spain
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Fernandez-Sueiro J, Pinto Tasende J, Pértega Diaz S, González E, Fernandez Lopez J, Oreiro Villar N, de Toro F, Blanco F. SAT0303 Discrepancies in the definition of inflammatory articular disease to determine the prevalence of psoriatic arthritis after applying caspar criteria in patients with cutaneous psoriasis. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3250] [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: 11/04/2022]
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115
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Fernandez-Sueiro J, Pértega Diaz S, Pinto Tasende J, González E, Fernández Lopez J, Oreiro N, de Toro F, Blanco F. AB0938 Clinical features and prevalence of psoriatic arthritis in patients with cutaneous psoriasis referred from the primary care. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.938] [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: 11/03/2022]
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González E, Díaz V, Díaz I, Munive E, de Ingunza L, Gutierrez L, Villanego I, Salas M. High dose rate intraluminal brachytherapy in esophageal cancer: Our experience. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.031] [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: 10/26/2022] Open
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Fernandez-Sueiro J, Pinto Tasende J, Pertega Diaz S, González E, Blanco F. SAT0304 Comparison of sacroiliac MRI evaluation versus sacroiliac X-rays in peripheral psoriatic arthritis: Evidence of silent disease. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.3251] [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: 11/04/2022]
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118
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González E, Díaz V, Munive E, Gutierrez L, Díaz L, Villanego I, Salas M. Definitive radiotherapy for unresected adenoid cystic carcinoma of the trachea. Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.305] [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: 10/26/2022] Open
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119
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Gil M, Esteruelas M, González E, Kontoudakis N, Jiménez J, Fort F, Canals JM, Hermosín-Gutiérrez I, Zamora F. Effect of two different treatments for reducing grape yield in Vitis vinifera cv Syrah on wine composition and quality: berry thinning versus cluster thinning. J Agric Food Chem 2013; 61:4968-4978. [PMID: 23627566 DOI: 10.1021/jf400722z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The influence of two treatments for reducing grape yield, cluster thinning and berry thinning, on red wine composition and quality were studied in a Vitis vinifera cv Syrah vineyard in AOC Penedès (Spain). Cluster thinning reduced grape yield per vine by around 40% whereas berry thinning only reduced it by around 20%. Cluster thinning grapes had higher soluble solids content than control grapes, and their resultant wines have greater anthocyanin and polysaccharide concentrations than the control wine. Wine obtained from berry thinning grapes had a higher total phenolic index, greater flavonol, proanthocyanidin, and polysaccharide concentrations, and lower titratable acidity than the control wine. Wines obtained from both treatments were sufficiently different from the control wine to be significantly distinguished by a trained panel in a triangular test. Even though both treatments seem to be effective at improving the quality of wine, berry thinning has the advantage because it has less impact on crop yield reduction.
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Affiliation(s)
- M Gil
- Departament de Bioquímica i Biotecnologia, Facultat d'Enologia de Tarragona, Grup de Recerca en Tecnologia Enològica (Tecnenol), Universitat Rovira i Virgili, Campus de Sescelades, C/Marcel.li Domingo s/n, 43007 Tarragona, Spain
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Fernández-Ruiz M, Andrés A, López-Medrano F, González E, Lumbreras C, San-Juan R, Morales J, Aguado J. Infection Risk in Kidney Transplantation From Uncontrolled Donation After Circulatory Death Donors. Transplant Proc 2013; 45:1335-8. [DOI: 10.1016/j.transproceed.2013.01.080] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 01/24/2013] [Indexed: 12/17/2022]
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121
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García Casco JM, Muñoz M, González E. Predictive ability of the feeding system in Iberian pig by means of several analytical methods. Grasas y Aceites 2013. [DOI: 10.3989/gya.130812] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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122
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Tejeda JF, Hernández-Matamoros A, González E, García-Casco JM. Determination of neophytadiene in the subcutaneous fat of Iberian pigs from different feeding systems. Grasas y Aceites 2013. [DOI: 10.3989/gya.130612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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123
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Feliu A, González-de-Olano D, González E, Rodriguez B, Ruiz-Hornillos J, Jimeno L, de la Torre F. A multicenter study of sensitization profiles in an allergic pediatric population in an area with high allergen exposure. J Investig Allergol Clin Immunol 2013; 23:337-344. [PMID: 24260979] [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: 06/02/2023] Open
Abstract
BACKGROUND AND OBJECTIVE In areas with a high number of allergens and high allergen concentrations, it is essential to identify the main causes of allergy, especially in pediatric patients. This study was conducted in allergic patients aged 14 or less to identify sensitization profiles during an initial phase, and to then evaluate changes in these profiles after 3 years of follow-up. This article describes the first phase of our investigation. METHODS A total of 187 patients aged between 2 and 14 years were included by 5 allergy units; all the children had symptoms suggestive of allergic disease (rhinoconjunctivitis andlor asthma). Allergy diagnosis was confirmed by evaluation of clinical history, allergen exposure, and in vivo or in vitro tests. Specific immunoglobulin E (slgE) to major allergens was tested. RESULTS Patients were sensitized to both seasonal (especially grass, olive, cypress and Cynodon dactylon) and perennial allergens (Alternaria alternata) and to panallergens (especially profilin and lipid transfer protein). Almost 60% of the patients included were polysensitized. Sensitization to certain major allergens such as Cup s1, Phl p1, or Sal k1 seems to increase with age. Patients sensitized to profilin had a higher number of sensitizations than non-profilin-sensitized patients. This panallergen is a diagnostic confounding factor. CONCLUSIONS A high percentage of allergic pediatric patients living in an area with high exposure levels to a large number of allergens are polysensitized and have a high percentage of sensitization to panallergens. The implementation of new diagnostic tools such as component-resolved diagnosis is crucial.
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Affiliation(s)
- A Feliu
- Hospital del Tajo de Aranjuez, Madrid, Spain
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Morán P, Rojas L, Cerritos R, Zermeño V, Valadez A, de Oca GM, Reyes MÁ, González E, Partida O, Hernández E, Nieves M, Portillo T, Gudiño M, Ramiro M, Ximénez C. Case report: Cutaneous amebiasis: the importance of molecular diagnosis of an emerging parasitic disease. Am J Trop Med Hyg 2012. [PMID: 23208883 DOI: 10.4269/ajtmh.2012.12-0278] [Citation(s) in RCA: 9] [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: 11/07/2022] Open
Abstract
Cutaneous amebiasis is the least common clinical form of human amebiasis in Mexico, sexual amebiasis was only occasionally observed before the late 1980s. However, in the last few decades, most of the documented cases of cutaneous amebiasis from around the world are sexually transmitted. We present two cases of sexually transmitted genital amebiasis. The molecular characterization of the Entamoeba species in the affected tissues underlines the importance of an etiological diagnosis using specific and sensitive techniques that avoid the rapid destruction of tissues and the irreversible sequelae to the anatomy and function of the affected organs. In addition, for those interested in the study of the human-amoebic disease relationship and its epidemiology, the detection of a new, mixed infection in an invasive case of amebiasis reveals new perspectives in the study of the extraordinarily complex host-parasite relationship in amebiasis.
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Affiliation(s)
- Patricia Morán
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico.
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Fernández-Ruiz M, López-Medrano F, Varela-Peña P, Lora-Pablos D, García-Reyne A, González E, Morales JM, San Juan R, Lumbreras C, Paz-Artal E, Andrés A, Aguado JM. Monitoring of immunoglobulin levels identifies kidney transplant recipients at high risk of infection. Am J Transplant 2012; 12:2763-73. [PMID: 22823002 DOI: 10.1111/j.1600-6143.2012.04192.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We aimed to analyze the incidence, risk factors and impact of hypogammaglobulinemia (HGG) in 226 kidney transplant (KT) recipients in which serum immunoglobulin (Ig) levels were prospectively assessed at baseline, month 1 (T(1) ), and month 6 (T(6) ). The prevalence of IgG HGG increased from 6.6% (baseline) to 52.0% (T(1) ) and subsequently decreased to 31.4% (T(6) ) (p < 0.001). The presence of IgG HGG at baseline (odds ratio [OR] 26.9; p = 0.012) and a positive anti-HCV status (OR 0.17; p = 0.023) emerged as risk factors for the occurrence of posttransplant IgG HGG. Patients with HGG of any class at T(1) had higher incidences of overall (p = 0.018) and bacterial infection (p = 0.004), bacteremia (p = 0.054) and acute pyelonephritis (p = 0.003) in the intermediate period (months 1-6). Patients with HGG at T(6) had higher incidences of overall (p = 0.004) and bacterial infection (p < 0.001) in the late period (>6 month). A complementary log-log model identified posttransplant HGG as an independent risk factor for overall (hazard ratio [HR] 2.03; p < 0.001) and bacterial infection (HR 2.68; p < 0.0001). Monitoring of humoral immunity identifies KT recipients at high risk of infection, offering the opportunity for preemptive immunoglobulin replacement therapy.
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Affiliation(s)
- M Fernández-Ruiz
- Unit of Infectious Diseases, Hospital Universitario 12 de Octubre. Instituto de Investigación Hospital 12 de Octubre (i+12), School of Medicine, Universidad Complutense, Madrid, Spain.
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Gainza-Cortés F, Pérez-Dïaz R, Pérez-Castro R, Tapia J, Casaretto JA, González S, Peña-Cortés H, Ruiz-Lara S, González E. Characterization of a putative grapevine Zn transporter, VvZIP3, suggests its involvement in early reproductive development in Vitis vinifera L. BMC Plant Biol 2012; 12:111. [PMID: 22824090 PMCID: PMC3432002 DOI: 10.1186/1471-2229-12-111] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2012] [Accepted: 06/29/2012] [Indexed: 05/02/2023]
Abstract
BACKGROUND Zinc (Zn) deficiency is one of the most widespread mineral nutritional problems that affect normal development in plants. Because Zn cannot passively diffuse across cell membranes, it must be transported into intracellular compartments for all biological processes where Zn is required. Several members of the Zinc-regulated transporters, Iron-regulated transporter-like Protein (ZIP) gene family have been characterized in plants, and have shown to be involved in metal uptake and transport. This study describes the first putative Zn transporter in grapevine. Unravelling its function may explain an important symptom of Zn deficiency in grapevines, which is the production of clusters with fewer and usually smaller berries than normal. RESULTS We identified and characterized a putative Zn transporter from berries of Vitis vinifera L., named VvZIP3. Compared to other members of the ZIP family identified in the Vitis vinifera L. genome, VvZIP3 is mainly expressed in reproductive tissue - specifically in developing flowers - which correlates with the high Zn accumulation in these organs. Contrary to this, the low expression of VvZIP3 in parthenocarpic berries shows a relationship with the lower Zn accumulation in this tissue than in normal seeded berries where its expression is induced by Zn. The predicted protein sequence indicates strong similarity with several members of the ZIP family from Arabidopsis thaliana and other species. Moreover, VvZIP3 complemented the growth defect of a yeast Zn-uptake mutant, ZHY3, and is localized in the plasma membrane of plant cells, suggesting that VvZIP3 has the function of a Zn uptake transporter. CONCLUSIONS Our results suggest that VvZIP3 encodes a putative plasma membrane Zn transporter protein member of the ZIP gene family that might play a role in Zn uptake and distribution during the early reproductive development in Vitis vinifera L., indicating that the availability of this micronutrient may be relevant for reproductive development.
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Affiliation(s)
- Felipe Gainza-Cortés
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
- Centro de Estudios Avanzados en Fruticultura (CEAF) CONICYT-Regional, GORE-O’Higgins R08I1001, Rengo, Chile
| | - Ricardo Pérez-Dïaz
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
| | - Ramón Pérez-Castro
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
- Laboratorio de Investigaciones Biomédicas, Facultad de Medicina, Universidad Católica del Maule, Talca, Chile
| | - Jaime Tapia
- Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Chile
| | - José A Casaretto
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
| | - Sebastián González
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
| | - Hugo Peña-Cortés
- Centro de Biotecnología Daniel Alkalay Lowitt, Universidad Federico Santa María, Valparaíso, Chile
| | - Simón Ruiz-Lara
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
| | - Enrique González
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
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Pérez O, Batista-Duharte A, González E, Zayas C, Balboa J, Cuello M, Cabrera O, Lastre M, Schijns VEJC. Human prophylactic vaccine adjuvants and their determinant role in new vaccine formulations. Braz J Med Biol Res 2012; 45:681-92. [PMID: 22527130 PMCID: PMC3854239 DOI: 10.1590/s0100-879x2012007500067] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2011] [Accepted: 04/13/2012] [Indexed: 01/04/2023] Open
Abstract
Adjuvants have been considered for a long time to be an accessory and empirical component of vaccine formulations. However, accumulating evidence of their crucial role in initiating and directing the immune response has increased our awareness of the importance of adjuvant research in the past decade. Nevertheless, the importance of adjuvants still is not fully realized by many researchers working in the vaccine field, who are involved mostly in the search for better target antigens. The choice of a proper adjuvant can be determinant for obtaining the best results for a given vaccine candidate, but it is restricted due to intellectual property and know-how issues. Consequently, in most cases the selected adjuvant continues to be the aluminum salt, which has a record of safety, but predominantly constitutes a delivery system (DS). Ideally, new strategies should combine immune potentiators (IP) and DS by mixing both compounds or by obtaining structures that contain both IP and DS. In addition, the term immune polarizer has been introduced as an essential concept in the vaccine design strategies. Here, we review the theme, with emphasis on the discussion of the few licensed new adjuvants, the need for safe mucosal adjuvants and the adjuvant/immunopotentiating activity of conjugation. A summary of toxicology and regulatory issues will also be discussed, and the Finlay Adjuvant Platform is briefly summarized.
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Affiliation(s)
- O Pérez
- Immunology Department, Research Vice Presidency, Finlay Institute, Havana City, Cuba.
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Monsalve FA, Valderrama JA, Vásquez D, Ibacache A, Rodríguez JA, González DR, Leiva E, González E. Inhibition of human topoisomerase I and activation of caspase-3 by aza-angucyclinones and arylaminopyrimido[4,5-c]isoquinoline-7,10-quinones. Int J Mol Med 2012; 30:151-6. [PMID: 22485249 DOI: 10.3892/ijmm.2012.961] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2011] [Accepted: 01/16/2012] [Indexed: 11/05/2022] Open
Abstract
Cancer is the second cause of death in the world after cardiovascular diseases. Cancer cells acquire capacities not present in normal cells, such as self-sufficiency, resistance to antiproliferative stimuli, evasion of apoptosis, unlimited replication, invasiveness and metastasis. Consequently, it is of major interest to explore and develop molecules with anticancer activity directed to specific targets. In this study, we aimed to evaluate two series of polycyclic quinones: aza-angucyclinone and arylaminopyrimido[4,5-c]isoquinoline-7,10-quinones, in their capacity to inhibit human topoisomerase I (TOP1) and to trigger apoptosis through activation of caspase-3. We evaluated the capacity of the two series of polycyclic quinones to inhibit TOP1, using a DNA supercoiled relaxation assay and their capacity to induce apoptosis through the activation of caspase-3 in HL60 cells. Both series of quinones inhibited TOP1 activity over 50%. When we evaluated the pro-apoptotic capacity of both series of quinones, at therapeutically relevant concentrations, the arylaminoquinones ADPA-1CC (methyl 7-(4-methoxyphenyl)amino-1,3-dimethyl-5,8-dioxo-5,8-dihydroisoquinoline-4-carboxylate), P4 (9-phenylamino-3,4-dihydrophenanthridine-1,7,10(2H)-trione) and the aza-angucyclinone OH-6H (8-hydroxy-2,4-dimethyl-2H,4H-benzo[g]pyrimido[4,5-c]isoquinoline-1,3,7,12-tetraone) increased the caspase-3 activity by approximately 2-fold over the control. The series of the arylaminoquinones and aza-angucyclinones showed differential antiproliferative capacity. We further identified a group of them that showed antiproliferative capacity possibly through inhibition of TOP1 and by activation of caspase-3. This group of molecules may represent a potential pharmacological tool in the treatment against cancer.
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Affiliation(s)
- Francisco A Monsalve
- Department of Biomedical Basic Sciences, School of Health Sciences, University of Talca, Talca, Chile
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Blázquez J, Sánchez R, Ramírez U, González E, Razzo O, Silvestre J, Sartor L, Hurtado A, Mesa J. 168. Rentabilidad de la coronariografía no invasiva mediante angiotomografía computarizada coronaria en la valoración preoperatoria de pacientes que van a ser sometidos a cirugía cardíaca no coronaria. Cirugía Cardiovascular 2012. [DOI: 10.1016/s1134-0096(12)70522-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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130
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Sartor L, Sánchez Pérez R, Hurtado A, Blázquez J, González E, Ramírez U, Mesa J. 204. Evaluación de los resultados de cirugía cardíaca en pacientes octogenarios en los últimos 6 años. Cirugía Cardiovascular 2012. [DOI: 10.1016/s1134-0096(12)70607-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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131
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Borroto S, Gámez D, Díaz D, Martínez Y, Ferrer AI, Velásquez Y, Llanes MJ, González E. Latent tuberculosis infection among health care workers at a general hospital in Santiago de Cuba. Int J Tuberc Lung Dis 2012; 15:1510-4, i. [PMID: 22008765 DOI: 10.5588/ijtld.10.0333] [Citation(s) in RCA: 12] [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: 11/10/2022] Open
Abstract
OBJECTIVES To determine the prevalence of latent tuberculosis infection (LTBI) and its predictors in general hospital personnel. METHODS Two tuberculin skin tests (TSTs) were carried out within 2 years in a sample of 371 health care workers (HCWs) at a general hospital in Santiago de Cuba Province, along with an interview to explore the association of LTBI with age, sex, occupation, contact history of TB and bacille Calmette-Guérin scar. A 10 mm cut-off point was used; an increase of ≥10 mm in the second TST was considered as tuberculin conversion. RESULTS Of the 350 HCWs with available TST re- sults, 82% were female; the mean age was 37.6 years. LTBI prevalence was 15.4%: it was highest in professionals (20.6%); 60.3% were non-reactors, and at the second test a year later 1.4% were converters. Among the HCWs, physicians had the highest prevalence (21.8%), followed by nurses (19.6%), while administrative staff had the lowest prevalence (3.3%). The mean induration was 3.78 mm; it was highest in professionals (4.4 mm) and the lowest among support staff (2.6 mm). Contact with TB cases was found to be a risk factor for LTBI. CONCLUSIONS Even at low levels, TB transmission in this hospital could be associated with risk exposure. It is recommended that preventive chemotherapy be given to tuberculin converters as an infection control measure in this hospital.
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Affiliation(s)
- S Borroto
- Research and Surveillance Group on TB-ARI-Leprosy, Pedro Kourí Institute of Tropical Medicine, Havana, Cuba.
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132
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Pérez-Castro R, Kasai K, Gainza-Cortés F, Ruiz-Lara S, Casaretto JA, Peña-Cortés H, Tapia J, Fujiwara T, González E. VvBOR1, the grapevine ortholog of AtBOR1, encodes an efflux boron transporter that is differentially expressed throughout reproductive development of Vitis vinifera L. Plant Cell Physiol 2012; 53:485-94. [PMID: 22247248 DOI: 10.1093/pcp/pcs001] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Boron (B) is an essential micronutrient for normal development of roots, shoots and reproductive tissues in plants. Due to its role in the structure of rhamnogalacturonan II, a polysaccharide required for pollen tube growth, B deficiency has been associated with the occurrence of parthenocarpic seedless grapes in some varieties of Vitis vinifera L. Despite that, it is unclear how B is mobilized and accumulated in reproductive tissues. Here we describe the characterization of an efflux B transporter, VvBOR1, homolog to AtBOR1, which is involved in B xylem loading in Arabidopsis thaliana roots. VvBOR1-green fluorescent protein (GFP) fusion protein expressed in A. thaliana localizes in the proximal plasma membrane domain in root pericycle cells, and VvBOR1 overexpression restores the wild-type phenotype in A. thaliana bor1-3 mutant plants exposed to B deficiency. Complementation of a mutant yeast strain indicates that VvBOR1 corresponds to a B efflux transporter. Transcriptional analyses during grapevine reproductive development show that the VvBOR1 gene is preferentially expressed in flowers at anthesis and a direct correlation between the expression pattern and B content in grapes was established, suggesting the involvement of this transporter in B accumulation in grapevine berries.
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Affiliation(s)
- Ramón Pérez-Castro
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
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Loyola J, Verdugo I, González E, Casaretto JA, Ruiz-Lara S. Plastidic isoprenoid biosynthesis in tomato: physiological and molecular analysis in genotypes resistant and sensitive to drought stress. Plant Biol (Stuttg) 2012; 14:149-56. [PMID: 21974688 DOI: 10.1111/j.1438-8677.2011.00465.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Isoprenoid compounds synthesised in the plastids are involved in plant response to water deficit. The functionality of the biosynthetic pathway of these compounds under drought stress has been analysed at the physiological and molecular levels in two related species of tomato (Solanum chilense and Solanum lycopersicum) that differ in their tolerance to abiotic challenge. Expression analysis of the genes encoding enzymes of these pathways (DXS, IPI, GGPPS, PSY1, NCED and HPT1) in plants at different RWC values shows significant differences for only GGPPS and HPT1, with higher expression in the tolerant S. chilense. Chlorophyll, carotenoids, α-tocopherol and ABA content was also determined in both species under different drought conditions. In agreement with HPT1 transcriptional activity, higher α-tocopherol content was observed in S. chilense than in S. lycopersicum, which correlates with a lower degree of lipoperoxidation in the former species. These results suggest that, in addition to lower stomatal conductance, α-tocopherol biosynthesis is part of the adaptation mechanisms of S. chilense to adverse environmental conditions.
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Affiliation(s)
- J Loyola
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca, Talca, Chile
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134
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Luque R, Delgado J, González E, Prados J, Melguizo C, Valdivia J, Martínez J, Ortega J, Ortiz R, Aránega A. 1145 POSTER Drug Resistance Induced by Plasmatic Concentrations of Paclitaxel and Carboplatin in Cancer Cell Lines. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70788-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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135
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Kauffman MA, Sterin-Prync A, Papouchado M, González E, Vidal AJ, Grossberg SE, Chuppa S, Odoriz B, Vrech C, Diez RA, Ferro HH. Immunogenicity of an interferon-beta1a product. Int J Immunopathol Pharmacol 2011; 24:499-504. [PMID: 21658324 DOI: 10.1177/039463201102400223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In order to determine whether Blastoferon®, a biosimilar interferon (IFN)- beta 1a formulation, shares epitopes with other known IFN-beta products, a series of neutralization bioassays were performed with a set of well-characterized anti-IFN- beta monoclonal antibodies and human sera (World Health Organization Reference Reagents). The bioassay was the interferon-induced inhibition of virus cytopathic effect on human cells in culture (EMC virus and A-549 cells). Computer-calculated results were reported as Tenfold Reduction Units (TRU)/ml. To further assess Blastoferon® immunogenicity, in vivo production of anti-IFN beta antibodies was determined in sera of patients included in the pharmacovigilance plan of Blastoferon® by the level of IFN- beta 1a binding antibodies (by enzyme immunoassay -EIA) and neutralizing antibodies (in the Wish-VSV system). The highly characterized neutralizing monoclonal antibodies A1 and A5 that bind to specific regions of the IFN- beta molecule reacted positively with the three beta 1a IFNs: Blastoferon®, Rebif®, and the IFN- beta WHO Second International Standard 00/572. As expected, the non-neutralizing monoclonal antibodies B4 and B7 did not neutralize any of the IFN- beta preparations. The commercially available monoclonal antibody B-02 reacted essentially equally with Rebif® and Blastoferon®. The WHO Reference Reagent human serum anti-IFN- beta polyclonal antibody neutralized all the IFN- beta products, whereas the WHO Reference Reagent human serum anti-IFN-alpha polyclonal antibody G037-501-572 appropriately failed to react with any of the IFN- beta products. On the basis of in vitro reactivity with known, well-characterized monoclonal and polyclonal antibody preparations, Blastoferon® shares immunological determinants with other human interferon- beta products, especially IFN- beta 1a. In vivo antibodies were detected by EIA in 72.9% of 37 chronically treated multiple sclerosis patients, whereas neutralizing antibodies were found in 8.1% of them. Blastoferon® appears to have immunological characteristics comparable to other IFN- beta 1a products.
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Ximénez C, Morán P, Rojas L, Valadez A, Gómez A, Ramiro M, Cerritos R, González E, Hernández E, Oswaldo P. Novelties on amoebiasis: a neglected tropical disease. J Glob Infect Dis 2011; 3:166-74. [PMID: 21731305 PMCID: PMC3125031 DOI: 10.4103/0974-777x.81695] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
In accordance with the 1997 documents of the World Health Organization (WHO), amoebiasis is defined as the infection by the protozoan parasite Entamoeba histolytica with or without clinical manifestations. The only known natural host of E. histolytica is the human with the large intestine as major target organ. This parasite has a very simple life cycle in which the infective form is the cyst, considered a resistant form of parasite: The asymptomatic cyst passers and the intestinal amoebiasis patients are the transmitters; they excrete cysts in their feces, which can contaminate food and water sources. E. histolytica sensu stricto is the potentially pathogenic species and E. dispar is a commensal non-pathogenic Entamoeba. Both species are biochemical, immunological and genetically distinct. The knowledge of both species with different pathogenic phenotypes comes from a large scientific debate during the second half of the 20th century, which gave place to the rapid development of diagnostics technology based on molecular and immunological strategies. During the last ten years, knowledge of the new epidemiology of amoebiasis in different geographic endemic and non-endemic areas has been obtained by applying mostly molecular techniques. In the present work we highlight novelties on human infection and the disease that can help the general physician from both endemic and non-endemic countries in their medical practice, particularly, now that emigration is undoubtedly a global phenomenon that is modifying the previous geography of infectious diseases worldwide.
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Affiliation(s)
- Cecilia Ximénez
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, Mexico
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Gallardo R, González E, García F, Botillo C, Martínez J, Salgado C, López R. “Mental Illness Awareness in Institutionalized Schizophrenics”. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73093-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Our study aimed to compare the mental illness awareness in institutionalized schizophrenics when compared to non institutionalized schizophrenics.Diagnoses of Schizophrenia was done following the ICD-10 dignosis criteria. We chose a convenience sample of our patients: 74 patients, 69.9% of institutionalized inpatients and a 31.1% of outpatients.Specific survey applied by the group of investigators aiming to collect socio-demographical data and clinical data, using the following psychometric scales: Scale to Assess Unawareness of Mental Disorder (SUMD), Global Assessment Scale (GAS), and Clinical Global Impression (CGI).Statistical analysis was performed with SPSS v 15.0, including descriptive statistics and correlation analysis.Differences found among awareness of response to medication and the awareness of social consequences of mental disorders are statistically significant, being higher in the institutionalized group of schizophrenics.
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139
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Otero L, Ugaz R, Dieltiens G, González E, Verdonck K, Seas C, Van Deun A, Gotuzzo E, Van der Stuyft P. Duration of cough, TB suspects' characteristics and service factors determine the yield of smear microscopy. Trop Med Int Health 2010; 15:1475-80. [PMID: 21087375 DOI: 10.1111/j.1365-3156.2010.02645.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To determine the efficiency of routine tuberculosis (TB) case detection by examining sputum smear positivity for acid-fast bacilli in relation to duration of cough, characteristics of TB suspects examined and health service factors. METHOD We combined patient interviews with routine data from laboratory registers in 6 health care facilities in San Juan de Lurigancho district, Lima, Peru. A TB case was defined as a TB suspect with at least one positive sputum smear. We calculated adjusted odds ratios with 95% confidence intervals for the association between smear positivity and health service and patient's characteristics. RESULTS Smear positivity was 7.3% (321/4376). Of the 4376 adults submitting sputa, 55.3% (2418) reported cough for <14 days. In this group, smear microscopy yielded 3.2% (78/2418) positive results vs. 12.4% (243/1958) in patients coughing for 14 or more days. Having cough for >2 weeks, being referred by health care staff, attending a secondary-level health care facility, male sex and age between 15 and 44 years were independent determinants of smear positivity. CONCLUSIONS Routine case detection yields a low proportion of smear-positive cases because of the inclusion of a high proportion of patients without cough or coughing for <2 weeks. Adherence to the national TB control programme guidelines on the selection of TB suspects would have a positive impact on the smear positivity rate, reduce laboratory costs and workload and possibly improve the reading quality of smear microscopy.
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Affiliation(s)
- L Otero
- Instituto de Medicina Tropical Alexander von Humboldt, Universidad Peruana Cayetano Heredia, Lima, Peru.
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140
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Orellana S, Yañez M, Espinoza A, Verdugo I, González E, Ruiz-Lara S, Casaretto JA. The transcription factor SlAREB1 confers drought, salt stress tolerance and regulates biotic and abiotic stress-related genes in tomato. Plant Cell Environ 2010; 33:2191-208. [PMID: 20807374 DOI: 10.1111/j.1365-3040.2010.02220.x] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Members of the abscisic acid-responsive element binding protein (AREB)/abscisic acid-responsive element binding factor (ABF) subfamily of basic leucine zipper (bZIP) transcription factors have been implicated in abscisic acid (ABA) and abiotic stress responses in plants. Here we describe two members identified in cultivated tomato (Solanum lycopersicum), named SlAREB1 and SlAREB2. Expression of SlAREB1 and SlAREB2 is induced by drought and salinity in both leaves and root tissues, although that of SlAREB1 was more affected. In stress assays, SlAREB1-overexpressing transgenic tomato plants showed increased tolerance to salt and water stress compared to wild-type and SlAREB1-down-regulating transgenic plants, as assessed by physiological parameters such as relative water content (RWC), chlorophyll fluorescence and damage by lipoperoxidation. In order to identify SlAREB1 target genes responsible for the enhanced tolerance, microarray and cDNA-amplified fragment length polymorphism (AFLP) analyses were performed. Genes encoding oxidative stress-related proteins, lipid transfer proteins (LTPs), transcription regulators and late embryogenesis abundant proteins were found among the up-regulated genes in SlAREB1-overexpressing lines, especially in aerial tissue. Notably, several genes encoding defence proteins associated with responses to biotic stress (e.g. pathogenesis-related proteins, protease inhibitors, and catabolic enzymes) were also up-regulated by SlAREB1 overexpression, suggesting that this bZIP transcription factor is involved in ABA signals that participate in abiotic stress and possibly in response to pathogens.
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Affiliation(s)
- Sandra Orellana
- Instituto de Biología Vegetal y Biotecnología, Universidad de Talca,Talca, Chile
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Taboada A, Prieto A, Couto I, Brea B, González E. Carcinoma basocelular invasivo de cuero cabelludo: Caso clínico. Neurocirugia (Astur) 2010. [DOI: 10.4321/s1130-14732010000500005] [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: 11/11/2022]
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Taboada A, Prieto A, Couto I, Brea B, González E. [Invasive basal cell carcinoma of the scalp. A clinical case]. Neurocirugia (Astur) 2010; 21:396-400. [PMID: 21042691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Basal cell carcinoma is the most frequent skin malignant neoplasm, although it doesn't usually compromise a vital risk. However, there are cases in which their local aggressiveness is very important, and it get deep structures. We present a 62 years old female operated several times because multifocal basal cell carcinoma on her scalp. She consulted with a wide local recidive affecting dura mater and superior sagittal sinus. We show the clinical case and the surgical treatment employed realized by Plastic and Neurosurgery Departments.
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Affiliation(s)
- A Taboada
- Servicios de Cirugía Plástica y Reparadora, Complejo Hospitalario Universitario de Santiago de Compostela (CHUS), Hospital de Conxo, Santiago de Compostela.
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González E, Elorza J, Failde I. Fibromyalgia and psychiatric comorbidity: their effect on the quality of life patients. Actas Esp Psiquiatr 2010; 38:295-300. [PMID: 21117004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Accepted: 09/01/2010] [Indexed: 05/30/2023]
Abstract
Patients with fibromyalgia (FM) often have associated mental disorders. As well as being very prevalent, the two conditions also have sociodemographic and clinical similarities. If both of these clinical conditions lead independently to a limitation of the health-related quality of life (HRQL) of the patients, it may be thought that their conjunction could have a greater adverse effect on this parameter. Equally, it could be assumed that the factors that worsen the HRQL of patients with FM or with mental illness could have a more serious effect on the HRQL of those in whom the two clinical conditions coexist. Although this conclusion seems evident, as far as we know there have been no studies to assess how much or in what way psychiatric comorbidity affects the HRQL of patients with FM, or any studies to analyze the particular factors that may affect their HRQL. This study approaches the importance of psychiatric comorbidity in patients with fibromyalgia and analyzes the combined effect that these two conditions have on the overall HRQL of these patients.
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Affiliation(s)
- E González
- Servicio de Psiquiatria, Hospital Universitario de Puerto Real, Puerto Real (Cádiz).
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144
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Abstract
Abstract
Selected trace and minor elements analyzed by XRF in sandstone samples were Rb-Sr-Zr-Nb-Ba-La-Ce-Nd as well as Ti-Mn-Fe with which they are often correlated. Refractory elements like REE are considered useful indicators of geochemical processes and, in this case, of provenance . Usually they maintain their original relationships and are transferred almost directly into sediments. The values here found, absolute and normalized, show correlations among the samples, allowing the establishment of their origin. Most of them in the spidergram patterns display positive spikes of Zr, and negative anomalies at Nb, Sr, Ti: differences in their height/depth could be in relation with the different Series or Formations. Strikingly, spidergrams of samples collected from the Patiño Formation show marked negative anomalies interalia of Ba, as well as positive spikes of Nb and Zr, very similar to those found in magmatic specimens from Misiones, Carapeguá-Acahay and Alto Paraguay Province and quite different from the other analyzed samples. In addition a remarkable presence of Precambrian signatures were found in the analyzed sandstones from the Paleozoic.
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Affiliation(s)
| | - P. Kump
- J. Stefan Institute, Ljubljana, Slowenien
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145
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Abstract
Two members of the genus Thermus were examined for their resistance to toxic inorganic compounds. They both proved to be fairly resistant to tellurite and selenite and to many other heavy metal salts. Cell extracts of Thermus thermophilus HB8 and of T. flavus AT-62 catalyze the reduction of K(2)TeO(3) in a reaction which is dependent on NADH oxidation.
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Affiliation(s)
- M Chiong
- Laboratorio de Biología Molecular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Casilla 233, Santiago 1, Chile
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146
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Farías J, Feleder E, González E, Halabe K, Criscuolo ME, Bergadá I, Diez RA. Relative bioavailability of two drug products of somatropin obtained from either the milk of transgenic cows or bacterial culture. Horm Res Paediatr 2010; 73:258-64. [PMID: 20215772 DOI: 10.1159/000284390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 07/07/2009] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Our objective was to assess the relative bioavailability of the first somatropin produced in transgenic cloned cows that carry the human growth hormone (GH) gene (Biohormon) and somatropin produced in Escherichia coli culture (HHT), the procedure most frequently used for the commercial production of the hormone. METHODS Upon approval by an independent ethics committee and the National Regulatory Agency of Argentina, we compared the time-concentration profiles of somatropin in 24 healthy volunteers, in a randomized, 2-period, 2-sequence crossover design after inhibition of endogenous GH secretion with lanreotide, a long-acting somastostatin analogue. After the subcutaneous administration of 1.33 mg of each formulation, serum somatropin was analyzed by chemiluminescent immunoassay and IGF-I by immunoradiometric assay. Safety was assessed by clinical and laboratory parameters. Pharmacokinetic parameters were calculated with Win Nonlin 5.2 using a non-compartmental model and bioequivalence was assessed. RESULTS The test/reference ratios of AUC, AUC(last) and C(max) were 106.4 (90% CI = 100.2-112.9), 105.3 (90% CI = 99.1-111.8) and 105.49 (90% CI = 92.6-120.1), respectively. No serious adverse events were reported and no GH antibodies were detected. CONCLUSION This study demonstrates that a single dose of Biohormon, the first product with somatropin obtained from milk of transgenic mammals, is bioequivalent to the reference product HHT according to standard criteria.
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Affiliation(s)
- J Farías
- Bio Sidus SA, Buenos Aires, Argentina. javiermfarias @ arnet.com.ar
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147
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Cornejo S, Pokniak J, González E, Donoso E, Robinson DW. Cambios en las concentraciones de DNA, RNA y proteína en hígado y músculos de polios broiler durante su vida productive normal. ACTA ACUST UNITED AC 2010. [DOI: 10.1111/j.1439-0442.1980.tb01874.x] [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: 11/26/2022]
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148
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Ximénez C, Cerritos R, Rojas L, Dolabella S, Morán P, Shibayama M, González E, Valadez A, Hernández E, Valenzuela O, Limón A, Partida O, Silva EF. Human amebiasis: breaking the paradigm? Int J Environ Res Public Health 2010; 7:1105-20. [PMID: 20617021 PMCID: PMC2872301 DOI: 10.3390/ijerph7031105] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2009] [Revised: 02/02/2010] [Accepted: 03/08/2010] [Indexed: 12/01/2022]
Abstract
For over 30 years it has been established that the Entamoeba histolytica protozoan included two biologically and genetically different species, one with a pathogenic phenotype called E. histolytica and the other with a non-pathogenic phenotype called Entamoeba dispar. Both of these amoebae species can infect humans. E. histolytica has been considered as a potential pathogen that can cause serious damage to the large intestine (colitis, dysentery) and other extraintestinal organs, mainly the liver (amebic liver abscess), whereas E. dispar is a species that interacts with humans in a commensal relationship, causing no symptoms or any tissue damage. This paradigm, however, should be reconsidered or re-evaluated. In the present work, we report the detection and genotyping of E. dispar sequences of DNA obtained from patients with amebic liver abscesses, including the genotyping of an isolate obtained from a Brazilian patient with a clinical diagnosis of intestinal amebiasis that was previously characterized as an E. dispar species. The genetic diversity and phylogenetic analysis performed by our group has shown the existence of several different genotypes of E. dispar that can be associated to, or be potentiality responsible for intestinal or liver tissue damage, similar to that observed with E. histolytica.
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Affiliation(s)
- Cecilia Ximénez
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
- Author to whom correspondence should be addressed; E-Mail:
; Tel.: +1-525-56232671; Fax: +1-525-56232679
| | - Rene Cerritos
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
- Department of Zoology, ENCB, National Polytechnic Institute (IPN), México City, 11340, Mexico
| | - Liliana Rojas
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Silvio Dolabella
- Department of Morphology, Laboratory of Parasitology, Federal University of Sergipe, Aracaju, Sergipe, 49100-000, Brazil; E-Mail:
| | - Patricia Morán
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Mineko Shibayama
- Department of Infectomic and Molecular Pathogenesis, (CINVESTAV), Mexico City, 07360, Mexico; E-Mail:
| | - Enrique González
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Alicia Valadez
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Eric Hernández
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Olivia Valenzuela
- Department of Chemistry and Biological Science, University of Sonora (UNISON), Hermosillo, Sonora, 83000, Mexico; E-Mail:
| | - Angélica Limón
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Oswaldo Partida
- Department of Experimental Medicine, Faculty of Medicine, National Autonomous University of Mexico (UNAM), Mexico City, 04510, Mexico; E-Mails:
(R.C.);
(L.R.);
(P.M.);
(E.G.);
(A.V.);
(E.H.);
(A.L.);
(O.P.)
| | - Edwards F Silva
- Department of Parasitology, Institute for Biological Sciences, Federal University of Minas Gerais, Minas Gerais, Belo Horizonte, 31270-901, Brazil; E-Mail:
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Delgado S, Villarroel R, González E. Submerged membrane bioreactor at substrate-limited conditions: activity and biomass characteristics. Water Environ Res 2010; 82:202-208. [PMID: 20369563 DOI: 10.2175/106143009x447911] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A pilot-scale membrane bioreactor was operated for advanced treatment of secondary effluent from a wastewater treatment plant. The performance and biomass characteristics were evaluated under two different hydraulic retention time (HRT) values (7.5 and 15 hours). The system was operated successfully without biomass purge and, after an initial phase, evolved until reaching a constant mixed-liquor volatile suspended solids (MLVSS) concentration, which resulted in the same value of carbon utilization rate (0.067 +/- 0.004 kg COD kg(-1) MLVSS d(-1)) for both HRTs. Respiration tests (maximum and endogenous oxygen uptake rates) confirmed a low microbial activity, which approached constant values (0.32 +/- 0.001 and 0.064 +/- 0.007 g O2 g(-1) MLVSS d(-1), respectively), regardless of the HRT. The sludge morphology and bound and supernatant extracellular polymeric substances also were assessed. Membrane performance was characterized by a stable behavior occurring simultaneously with a high level of biodegradation in the microcolloidal and soluble fraction.
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Affiliation(s)
- Sebastián Delgado
- Department of Chemical Engineering, University of La Laguna, La Laguna, Spain
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Toledano A, Ruiz C, Navas C, Herráiz C, González E, Rodríguez G, Galindo AN. Development of a short olfactory test based on the Connecticut Test (CCCRC). Rhinology 2010; 47:465-9. [PMID: 19936378 DOI: 10.4193/rhin08.133] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE To create a short olfactory test, Connecticut Smell Test (CST), based on the CCCRC (Connecticut Chemosensor and Clinical Research Center). DESIGN A prospective patient-based study. SETTINGS Smell and Taste Outpatient Clinic at the Fundación Hospital Alcorcón, Madrid, Spain. MATERIAL AND METHODS We compared a short test based on the CCCRC with the Pocket Smell Test (PST) based on the University of Pennsylvania Smell Identification Test) UPSIT in 40 patients with nasal polyposis, in order to determine the specificity, sensitivity, positive predictive and negative predictive values. The validity index was 95% with an accuracy rate of 10%. We determined unit cost, the time required to perform the test in the outpatient office and the difficulty to perform the test. RESULTS The sensibility was 93.3% and the specificity was 76% with a positive predictive value of 70% and a negative predictive value of 95%. The unitary cost of CST was euro0.65 when it is performed by a doctor. The unitary cost of PST is euro1.76. Our short test took 34 seconds to perform. More than 96% of the patients thought the test was easy to do. CONCLUSION Our test is a valid, easy and quick test to be used in patients with nasal polyposis.
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Affiliation(s)
- A Toledano
- Rhinology Unit, Fundación Hospital Alcorcón, Universidad Rey Juan Carlos, Madrid, Spain.
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