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Salvador C, Vicedo‐Cabrera AM, Libonati R, Russo A, Garcia BN, Belem LBC, Gimeno L, Nieto R. Effects of Drought on Mortality in Macro Urban Areas of Brazil Between 2000 and 2019. Geohealth 2022; 6:e2021GH000534. [PMID: 35280229 PMCID: PMC8902811 DOI: 10.1029/2021gh000534] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/13/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
A significant fraction of Brazil's population has been exposed to drought in recent years, a situation that is expected to worsen in frequency and intensity due to climate change. This constitutes a current key environmental health concern, especially in densely urban areas such as several big cities and suburbs. For the first time, a comprehensive assessment of the short-term drought effects on weekly non-external, circulatory, and respiratory mortality was conducted in 13 major Brazilian macro-urban areas across 2000-2019. We applied quasi-Poisson regression models adjusted by temperature to explore the association between drought (defined by the Standardized Precipitation-Evapotranspiration Index) and the different mortality causes by location, sex, and age groups. We next conducted multivariate meta-analytical models separated by cause and population groups to pool individual estimates. Impact measures were expressed as the attributable fractions among the exposed population, from the relative risks (RRs). Overall, a positive association between drought exposure and mortality was evidenced in the total population, with RRs varying from 1.003 [95% CI: 0.999-1.007] to 1.010 [0.996-1.025] for non-external mortality related to moderate and extreme drought conditions, from 1.002 [0.997-1.007] to 1.008 [0.991-1.026] for circulatory mortality, and from 1.004 [0.995-1.013] to 1.013 [0.983-1.044] for respiratory mortality. Females, children, and the elderly population were the most affected groups, for whom a robust positive association was found. The study also revealed high heterogeneity between locations. We suggest that policies and action plans should pay special attention to vulnerable populations to promote efficient measures to reduce vulnerability and risks associated with droughts.
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Affiliation(s)
- C. Salvador
- Centro de Investigación MariñaUniversidade de VigoEnvironmental Physics Laboratory (EPhysLab)OurenseSpain
- Institute of Social and Preventive Medicine (ISPM)University of BernBernSwitzerland
- Oeschger Center for Climate Change ResearchUniversity of BernBernSwitzerland
| | - A. M. Vicedo‐Cabrera
- Institute of Social and Preventive Medicine (ISPM)University of BernBernSwitzerland
- Oeschger Center for Climate Change ResearchUniversity of BernBernSwitzerland
| | - R. Libonati
- Departamento de MeteorologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
- Instituto Dom Luíz (IDL)Faculdade de CiênciasUniversidade de LisboaLisboaPortugal
| | - A. Russo
- Instituto Dom Luíz (IDL)Faculdade de CiênciasUniversidade de LisboaLisboaPortugal
| | - B. N. Garcia
- Departamento de MeteorologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
| | - L. B. C. Belem
- Departamento de MeteorologiaUniversidade Federal do Rio de JaneiroRio de JaneiroBrazil
| | - L. Gimeno
- Centro de Investigación MariñaUniversidade de VigoEnvironmental Physics Laboratory (EPhysLab)OurenseSpain
| | - R. Nieto
- Centro de Investigación MariñaUniversidade de VigoEnvironmental Physics Laboratory (EPhysLab)OurenseSpain
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López-Molina C, Carrion A, Campistol M, Piñero A, Lozano F, Salvador C, Raventós CX, Trilla E. Evaluating the impact of the learning curve on the perioperative outcomes of robot-assisted radical cystectomy with intracorporeal urinary diversion. Actas Urol Esp 2021; 46:S0210-4806(21)00106-6. [PMID: 34334241 DOI: 10.1016/j.acuro.2021.05.005] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 05/23/2021] [Indexed: 11/23/2022]
Abstract
INTRODUCTION Robot-assisted radical cystectomy (RARC) with intracorporeal urinary diversion (ICUD) is a technically difficult procedure. Our aim was to evaluate the potential impact of the learning curve (LC) on perioperative and pathological outcomes of RARC with ICUD. MATERIAL AND METHODS Retrospective study of 62 consecutive patients who underwent RARC with ICUD for bladder cancer between 2015-2020. We compared 3 consecutive groups of 20 (G1), 20 (G2), and 22 (G3) patients to analyze the impact of the LC. G1 cases were performed by a senior surgeon experienced in robotic surgery, while G2-G3 were performed by 2 junior surgeons without experience under the mentorship of the senior surgeon. RESULTS The 3 groups had similar clinical and pathological characteristics. A total of 15 patients (24%) received a neobladder and 47 (75%) an ileal conduit. The mean operative time decreased 60minutes between G1-G3 (P=0.001). No conversions to open approach or intraoperative complications were reported. There were no differences between groups regarding positive margin rates (P=0.6) or the number of lymph nodes removed (P=0.061). The postoperative complication rate was 77% and did not change during the LC (P=0.49). Uretero-enteric stricture rate decreased from 25% in G1 to 9% in G3 (P=0.217). CONCLUSIONS The inclusion of júnior surgeons to a RARC with ICUD program after the initial 20 cases does not have an impact on the perioperative and pathological outcomes of the procedure. The operative time and the uretero-enteric stricture rate could be reduced during the LC.
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Affiliation(s)
- C López-Molina
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - A Carrion
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España.
| | - M Campistol
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - A Piñero
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - F Lozano
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - C Salvador
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - C X Raventós
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
| | - E Trilla
- Departamento de Urología, Hospital Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, España
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Yuen E, Fried J, Salvador C, Gudis DA, Schlosser RJ, Nguyen SA, Brennan EA, Rowan NR. Nonpharmacological interventions to reduce respiratory viral transmission: an evidence-based review with recommendations. Rhinology 2021; 59:114-132. [PMID: 33760909 DOI: 10.4193/rhin20.563] [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: 11/08/2022]
Abstract
BACKGROUND Viral respiratory infections are a leading cause of worldwide mortality and exert the potential to cause global socioeconomic crises. However, inexpensive, efficacious, and rapidly deployable strategies to reduce viral transmission are increasingly important in the setting of an ongoing pandemic, though not entirely understood. This article provides a comprehensive review of commonly employed nonpharmacological interventions to interrupt viral spread and provides evidence-based recommendations for their use. METHODOLOGY A systematic review of three databases was performed. Studies with defined endpoints of subjects receiving one of five interventions (nasal washing, gargling, personal protective equipment (PPE), social distancing, and hand hygiene) were included. An evidence-based review of the highest level of evidence, with recommendations, was created in accordance with a previously described, rigorous, iterative process. RESULTS Fifty-four primary studies were included. The most commonly studied intervention was hand hygiene, followed by PPE, gargling, saline nasal washing, and social distancing. CONCLUSIONS Mask use and hand hygiene are strong recommendations for prevention of viral transmission. Donning gloves, gowns, and eye protection are a recommendation in healthcare settings. Saline nasal washing and gargling are options in selected populations. Although an aggregate level of evidence is not provided, the authors recommend social distancing.
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Affiliation(s)
- E Yuen
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - J Fried
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - C Salvador
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - D A Gudis
- Columbia University Irving Medical Centre, Department of Otolaryngology-Head and Neck Surgery, New York, NY, USA
| | - R J Schlosser
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - S A Nguyen
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - E A Brennan
- Medical University of South Carolina, Department of Otolaryngology-Head and Neck Surgery, Charleston, SC, USA
| | - N R Rowan
- The Johns Hopkins University School of Medicine, Department of Otolaryngology-Head and Neck Surgery, Baltimore, MD, USA
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Salvador C, Nieto R, Linares C, Díaz J, Alves CA, Gimeno L. Drought effects on specific-cause mortality in Lisbon from 1983 to 2016: Risks assessment by gender and age groups. Sci Total Environ 2021; 751:142332. [PMID: 33182008 DOI: 10.1016/j.scitotenv.2020.142332] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [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: 04/30/2020] [Revised: 09/08/2020] [Accepted: 09/08/2020] [Indexed: 06/11/2023]
Abstract
Portugal (Southwestern Europe) experiences a high incidence of dry hazards such as drought, a phenomenon that entails a notable burden of morbidity and mortality worldwide. For the first time in the Lisbon district, a time-series study was conducted to evaluate the impact of drought measured by the Standardised Precipitation Index (SPI) and Standardised Precipitation-Evapotranspiration Index (SPEI) on the daily natural, circulatory, and respiratory mortality from 1983 to 2016. An assessment by gender and adult age population groups (45-64, 65-74, ≥75 years old) was included. To estimate the relative risks and attributable risks, generalised linear models with a Poisson link were used. Additionally, the influence of heatwaves and atmospheric pollution for the period from 2007 to 2016 (available period for pollution data) was considered. The main findings indicate statistically significant associations between drought conditions and all analysed causes of mortality. Moreover, SPEI shows an improved capability to reflect the different risks. People in the 45-64 year-old group did not indicate any significant influence in any of the cases, whereas the oldest groups had the highest risk. The drought effects on mortality among the population varied across the different study periods, and in general, the men population was affected more than the women population (except for the SPEI and circulatory mortality during the long study period). The short-term influence of droughts on mortality could be explained primarily by the effect of heatwaves and pollution; however, when both gender and age were considered in the Poisson models, the effect of drought also remained statistically significant when all climatic phenomena were included for specific groups of the total population and men. This type of study facilitates a better understanding of the population at risk and allows the development of more effective measures to mitigate the drought effects on the population.
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Affiliation(s)
- C Salvador
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain.
| | - R Nieto
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain
| | - C Linares
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - J Díaz
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - C A Alves
- Centre for Environmental and Marine Studies (CESAM), Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal
| | - L Gimeno
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain
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Lourenço AA, Silva VD, da Silva R, Silva U, Chesman C, Salvador C, Simões TA, Macedo DA, da Silva FF. Metal-organic frameworks as template for synthesis of Mn3+/Mn4+ mixed valence manganese cobaltites electrocatalysts for oxygen evolution reaction. J Colloid Interface Sci 2021; 582:124-136. [DOI: 10.1016/j.jcis.2020.08.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/17/2020] [Accepted: 08/11/2020] [Indexed: 12/16/2022]
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Salvador C, Nieto R, Linares C, Díaz J, Gimeno L. Short-term effects of drought on daily mortality in Spain from 2000 to 2009. Environ Res 2020; 183:109200. [PMID: 32036270 DOI: 10.1016/j.envres.2020.109200] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 11/26/2019] [Revised: 01/26/2020] [Accepted: 01/28/2020] [Indexed: 06/10/2023]
Abstract
Spain is a country of southern Europe that is prone to drought, and it is likely that this type of hydrological extreme will become substantially more frequent and intense in the 21st century, which could lead to greater health risks if adequate adaptive measures are not taken. For the first time, we calculated the relative risks (RRs) of daily natural (ICD10: A00-R99), circulatory (ICD10: I00-I99), and respiratory (ICD: J00-J99) mortality associated with drought events in each province of Spain from 2000 to 2009. For this purpose, we compared the performance of the Standardized Precipitation Index (SPI) and Standardized Precipitation- Evapotranspiration Index (SPEI) obtained at 1 month of accumulation (denoted as SPI-1/SPEI-1) to estimate the short-term risks of droughts on daily mortality using generalised linear models. Attributable risks were calculated from the RR data. The main findings of this study revealed statistically significant associations between the different causes of daily mortality and drought events for the different provinces of Spain, and clear spatial heterogeneity was observed across the country. Western Spain (northwest to southwest) was the region most affected, in contrast to northern and eastern Spain, and daily respiratory mortality was the group most strongly linked to the incidence of drought conditions. Moreover, for a considerable number of provinces, the effect of SPI-1 and SPEI-1 largely reflected the impact of atmospheric pollution and/or heatwaves; however, for other regions, the effect of drought conditions on daily mortality remained when these different climatic events were controlled in Poisson models. When the performances of the SPEI and SPI were compared to identify and estimate the risks of drought on daily mortality, the results were very similar, although there were slight differences in the specific causes of daily mortality.
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Affiliation(s)
- C Salvador
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain.
| | - R Nieto
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain
| | - C Linares
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - J Díaz
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - L Gimeno
- EPhysLab (Environmental Physics Laboratory), CIM-UVIGO, Universidade de Vigo, Ourense, Spain
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Fuster B, Tormo N, Salvador C, Gimeno C. Detection of two simultaneous outbreaks of Klebsiella pneumoniae coproducing OXA-48 and NDM-1 carbapenemases in a tertiary-care hospital in Valencia, Spain. New Microbes New Infect 2020; 34:100660. [PMID: 32194965 PMCID: PMC7075970 DOI: 10.1016/j.nmni.2020.100660] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/24/2020] [Accepted: 02/10/2020] [Indexed: 01/07/2023] Open
Abstract
Klebsiella pneumoniae is one of the most common hospital-acquired Gram-negative pathogens. During the last decade, the emergence of strains with reduced susceptibility or resistance to carbapenems is becoming a therapeutic challenge. This study takes place after the isolation of 14 strains of carbapenem-resistant K. pneumoniae with similar susceptibility patterns and carriage of OXA-48 and NDM-1 carbapenemases genes. Fourteen patients were found to be colonized (faecal carriage) and/or infected by two different clones of carbapenemase-coproducing K. pneumoniae during a 1-year period of time. Some of the patients had shared a hospital ward and continued to be colonized several months after the outbreak.
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Affiliation(s)
- B. Fuster
- Consorcio Hospital General Universitario de Valencia, University of Valencia, Valencia, Spain
| | - N. Tormo
- Consorcio Hospital General Universitario de Valencia, University of Valencia, Valencia, Spain
| | - C. Salvador
- Consorcio Hospital General Universitario de Valencia, University of Valencia, Valencia, Spain
| | - C. Gimeno
- Consorcio Hospital General Universitario de Valencia, University of Valencia, Valencia, Spain
- Department of Microbiology, School of Medicine, University of Valencia, Valencia, Spain
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Bakke K, Salvador C. Correction to ‘A doubly anharmonic oscillator in an induced electric dipole system’. Proc Math Phys Eng Sci 2019; 475:20190456. [DOI: 10.1098/rspa.2019.0456] [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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Salvador C, Nieto R, Linares C, Diaz J, Gimeno L. Effects on daily mortality of droughts in Galicia (NW Spain) from 1983 to 2013. Sci Total Environ 2019; 662:121-133. [PMID: 30690347 DOI: 10.1016/j.scitotenv.2019.01.217] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 12/11/2018] [Revised: 01/10/2019] [Accepted: 01/18/2019] [Indexed: 06/09/2023]
Abstract
Climate change scenarios indicate an increase in the intensity and frequency of droughts in several regions of the world in the 21st century, especially in Southern Europe, highlighting the threat to global health. For the first time, a time-series diagnostic study has been conducted regarding the impact of droughts in Galicia, a region in north-western Spain, on daily natural-cause mortality, daily circulatory-cause mortality, and daily respiratory-cause mortality, from 1983 to 2013. We analysed the drought periods over the area of interest using the daily Standardized Evapotranspiration-Precipitation Index (SPEI) and the daily Standardized Precipitation Index (SPI), obtained at various timescales (1, 3, 6, 9 months), to identify and classify the intensity of drought and non-drought periods. Generalized linear models with the Poisson regression link were used to calculate the Relative Risks (RRs) of different causes of mortality, and the percentage of Attributable Risk Mortality (%AR) was calculated based on RRs data. According to our findings, there were statistically significant (p < 0.05) associations between drought periods, measured by both the daily SPEI and SPI, and daily mortality in all provinces of Galicia (except Pontevedra) for different timescales. Furthermore, drought periods had a greater influence on daily mortality in the interior provinces of Galicia than in the coastal regions, with Lugo being the most affected. In short term, the effect of droughts (along with heatwaves) on daily mortality was observed in interior regions and was mainly explained by atmospheric pollution effect throughout 2000 to 2009 period in Ourense, being respiratory causes of mortality the group most strongly associated. The fact that droughts are likely to become increasingly frequent and intense in the context of climate change and the lack of studies that have considered the impact of droughts on specific causes of mortality make this type of analysis necessary.
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Affiliation(s)
- C Salvador
- EPhysLab (Environmental Physics Laboratory), Facultade de Ciencias, Universidade de Vigo, Ourense, Spain.
| | - R Nieto
- EPhysLab (Environmental Physics Laboratory), Facultade de Ciencias, Universidade de Vigo, Ourense, Spain
| | - C Linares
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - J Diaz
- Department of Epidemiology and Biostatistics, National School of Public Health, Carlos III National Institute of Health (Instituto de Salud Carlos III/ISCIII), Madrid, Spain
| | - L Gimeno
- EPhysLab (Environmental Physics Laboratory), Facultade de Ciencias, Universidade de Vigo, Ourense, Spain
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Lorente D, Trilla E, Meseguer A, Arevalo J, Nemours S, Planas J, Placer J, Celma A, Salvador C, Regis L, Schwartzmann I, Morote J. The role of STAT3 protein as a prognostic factor in the clear cell renal carcinoma. Systematic review. Actas Urol Esp 2019; 43:118-123. [PMID: 30466966 DOI: 10.1016/j.acuro.2018.08.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 05/30/2018] [Revised: 08/28/2018] [Accepted: 08/31/2018] [Indexed: 11/27/2022]
Abstract
CONTEXT AND OBJECTIVE There have been significant advances in the knowledge of renal carcinogenesis n the last years. Nowadays, renal tumors are classified according to their genetic profile and specific treatments based on the identification of therapeutic targets have also been developed. However, no prognostic markers have yet been identified. The aim of this review is to analyse literature that has evaluated the expression of the STAT3 protein as a molecular marker in clear cell renal carcinoma (ccRCC). EVIDENCE ACQUISITION In January 2018 a systematic review was conducted in Pubmed, Cochrane library and Sciencedirect databases, from papers published from 1990. Search terms were"renal cell carcinoma"and"STAT3"or"STAT-3"and"prognostic factor. Following the principles of the PRISMA declaration and the PICO selection strategy, original articles with series of patients diagnosed with localized or metastatic ccRCC, and where the activity of STAT3 is analysed as a prognostic marker, were selected. A total of 132 publications were identified, of which 10 were finally revised, for they met the inclusion criteria. EVIDENCE SYNTHESIS STAT3 activation (phosphorylation) through Ser727 is important during ccRCC development and progression. PSTAT3 expression seems to be a prognostic marker and an antiangiogenic-resistance marker in metastatic patients. There is little evidence as prognostic marker in patients with localized disease. CONCLUSIONS STAT3 (Ser 727) expression in the nucleus of the ccRCC cells can be a prognostic marker and an antiangiogenic-resistance marker. Current scientific evidence is limited and more studies are needed to demonstrate its usefulness.
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Affiliation(s)
- D Lorente
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - E Trilla
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España.
| | - A Meseguer
- Unidad de Fisiopatología Renal, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, España
| | - J Arevalo
- Unidad de Fisiopatología Renal, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, España
| | - S Nemours
- Unidad de Fisiopatología Renal, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, España
| | - J Planas
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - J Placer
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - A Celma
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - C Salvador
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - L Regis
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - I Schwartzmann
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
| | - J Morote
- Servicio de Urología, Hospital de la Vall d'Hebrón, Universidad Autónoma de Barcelona, Barcelona, España
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Bakke K, Salvador C. A doubly anharmonic oscillator in an induced electric dipole system. Proc Math Phys Eng Sci 2018; 474:20170881. [DOI: 10.1098/rspa.2017.0881] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Accepted: 08/03/2018] [Indexed: 11/12/2022] Open
Abstract
The behaviour of the interaction of the induced electric dipole moment of an atom with a uniform magnetic field and a non-uniform electric field are investigated in a rotating reference frame. An interesting aspect of this interaction is that it gives rise to an analogue of a spinless particle subject to the doubly anharmonic oscillator. Then, it is shown that analytical solutions to the Schrödinger equation can be obtained. Another point raised is that the quantum effects on the induced electric dipole moment can be observed if the uniform magnetic field possesses a discrete set of values.
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Salvador C, Entenmann A, Salvador R, Niederwanger A, Crazzolara R, Kropshofer G. Combination therapy of omega-3 fatty acids and acipimox for children with hypertriglyceridemia and acute lymphoblastic leukemia. J Clin Lipidol 2018; 12:1260-1266. [PMID: 30055974 DOI: 10.1016/j.jacl.2018.05.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [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: 02/08/2018] [Revised: 05/29/2018] [Accepted: 05/30/2018] [Indexed: 01/19/2023]
Abstract
BACKGROUND Lipemic alterations are commonly seen in pediatric patients with acute lymphoblastic leukemia (ALL) treated with corticosteroids and L-asparaginase. OBJECTIVE In these children, hypertriglyceridemia rarely causes symptoms and mostly responds well to a low-fat diet. Only few patients demand further therapy, which is not clearly approved in the literature to date. Therefore, it may be important to compile generally accepted standard procedures for lipid-lowering therapy in the pediatric ALL population. METHODS We performed a study on 119 newly diagnosed pediatric patients with ALL, all treated according to the ALL-BFM 2000 protocol at our institution between the years 2000 and 2009, to evaluate the incidence of hypertriglyceridemia and the efficacy of a combination therapy with omega-3 fatty acids and acipimox in hypertriglyceridemic patients who did not respond to diet. RESULTS We observed hypertriglyceridemia in 34.5% of patients in this collective. In the majority, normalization of triglycerides was successfully managed by administration of a low-fat diet. However, 7.6% of patients (related to total study population) with hypertriglyceridemia did not show diminished lipid levels during diet and/or presented with symptoms such as abdominal pain, dyspnea, or anginal chest pain. In these cases, we performed a lipid-lowering combination therapy with omega-3 fatty acids and acipimox. We observed a prompt decline of serum triglycerides to normal values and an improvement of symptoms within days after onset of this therapy without occurrence of any side effects. CONCLUSION In summary, the combination treatment with omega-3 fatty acids and acipimox could represent an alternative to other reported lipid-lowering therapies without severe adverse reactions.
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Affiliation(s)
- C Salvador
- Division of Pediatric Hematology and Oncology, Department of Pediatrics I, Innsbruck Medical University, Innsbruck, Tyrol, Austria.
| | - A Entenmann
- Division of Gastroenterology and Hepatology, Department of Pediatrics I, Innsbruck Medical University, Innsbruck, Tyrol, Austria
| | | | - A Niederwanger
- Department of Internal Medicine, Innsbruck Medical University, Innsbruck, Tyrol, Austria
| | - R Crazzolara
- Division of Pediatric Hematology and Oncology, Department of Pediatrics I, Innsbruck Medical University, Innsbruck, Tyrol, Austria
| | - G Kropshofer
- Division of Pediatric Hematology and Oncology, Department of Pediatrics I, Innsbruck Medical University, Innsbruck, Tyrol, Austria
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Trilla E, Konstantinidis C, Serres X, Lorente D, Planas J, Placer J, Salvador C, Celma A, Montealegre C, Morote J. Ultrasound-guided percutaneous radiofrequency ablation for treating small renal masses. Actas Urol Esp 2017; 41:497-503. [PMID: 28457496 DOI: 10.1016/j.acuro.2017.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Revised: 03/21/2017] [Accepted: 03/21/2017] [Indexed: 01/25/2023]
Abstract
INTRODUCTION The objective of this study was to analyse and assess the experience with radiofrequency ablation of small renal masses using a contrast-enhanced, ultrasound-guided percutaneous approach for patients who are not suitable for surgical resection and/or who refused surveillance or observation. MATERIAL AND METHOD From January 2007 to August 2015, 164 treatments were performed on a total of 148 patients. We present the patients' clinical-radiological characteristics, oncological and functional results in the short and medium term. RESULTS The overall technical success rate was 97.5%, with a successful outcome in 1 session in 100% of the lesions≤3cm and 92% in lesions measuring 3-5cm. The mean tumour diameter in the patients for whom the treatment was ultimately successful was 2.7cm, while the mean diameter of these in the unsuccessful operations was 3.9cm (P<.05). There were no statistically significant differences in the serum creatinine levels and estimated glomerular filtration rates. CONCLUSIONS Despite the low rate of positive renal biopsies in the series, ultrasound-guided percutaneous radiofrequency ablation for treating small renal lesions appears to be an effective and safe procedure with a minimum impact on renal function, an acceptable oncologic control in the short and medium term and a low rate of complications.
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Affiliation(s)
- E Trilla
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España.
| | - C Konstantinidis
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - X Serres
- Servicio de Radiodiagnóstico, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - D Lorente
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - J Planas
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - J Placer
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - C Salvador
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - A Celma
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - C Montealegre
- Servicio de Radiodiagnóstico, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
| | - J Morote
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma, Barcelona, España
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Lorente D, Trilla E, Meseguer A, Planas J, Placer J, Celma A, Salvador C, Regis L, Morote J. Systematic review of renal carcinoma prognostic factors. Actas Urol Esp 2017; 41:215-225. [PMID: 27659130 DOI: 10.1016/j.acuro.2016.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2016] [Revised: 08/04/2016] [Accepted: 08/05/2016] [Indexed: 11/16/2022]
Abstract
CONTEXT AND OBJECTIVES The natural history of renal cell carcinoma is heterogeneous. Some scenarios can be found in terms of clinical presentation, clinical evolution or type of recurrence (local/metastatic). The aim of this publication is to analyze the most important prognostic factors published in the literature. EVIDENCE ACQUISITION A literature review ob published papers was performed using the Pubmed, from first Motzer's classification published in 1999 to 2015, according to PRISMA declaration. Search was done using the following keywords: kidney neoplasm, kidney cancer, renal cell carcinoma, prognostic factors, mortality, survival and disease progression. Papers were classified according to level of evidence, the number of patients included and the type of study performed. EVIDENCE SYNTHESIS The evolution in the knowledge of molecular pathways related to renal oncogenesis and the new targeted therapies has left to remain obsolete the old prognostic models. It's necessary to perform a continuous review to actualize nomograms and to adapt them to the new scenarios. CONCLUSIONS Is necessary to perform a proper external validation of existing prognostic factors using prospective and multicentric studies to add them into the daily urologist clinical practice.
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Affiliation(s)
- D Lorente
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - E Trilla
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España.
| | - A Meseguer
- Unidad de fisiología y fisiopatología renal (VHIR), Barcelona, España
| | - J Planas
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - J Placer
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - A Celma
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - C Salvador
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - L Regis
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
| | - J Morote
- Servicio de Urología, Hospital de la Vall d'Hebron, Universidad Autonoma de Barcelona, Barcelona, España
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Salvador C, Mesa MS, Durán E, Alvarez JL, Carbajo J, Mozo JD. Open ISEmeter: An open hardware high-impedance interface for potentiometric detection. Rev Sci Instrum 2016; 87:055111. [PMID: 27250474 DOI: 10.1063/1.4952419] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work, a new open hardware interface based on Arduino to read electromotive force (emf) from potentiometric detectors is presented. The interface has been fully designed with the open code philosophy and all documentation will be accessible on web. The paper describes a comprehensive project including the electronic design, the firmware loaded on Arduino, and the Java-coded graphical user interface to load data in a computer (PC or Mac) for processing. The prototype was tested by measuring the calibration curve of a detector. As detection element, an active poly(vinyl chloride)-based membrane was used, doped with cetyltrimethylammonium dodecylsulphate (CTA(+)-DS(-)). The experimental measures of emf indicate Nernstian behaviour with the CTA(+) content of test solutions, as it was described in the literature, proving the validity of the developed prototype. A comparative analysis of performance was made by using the same chemical detector but changing the measurement instrumentation.
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Affiliation(s)
- C Salvador
- Applied Electrochemistry Laboratory, Faculty of Experimental Sciences, University of Huelva, Av. 3 de Marzo s/n., 21007 Huelva, Spain
| | - M S Mesa
- Department of Electronics Engineering, Computers and Automatic, ETSI, University of Huelva, Campus de La Rabida, 21810 Huelva, Spain
| | - E Durán
- Department of Electronics Engineering, Computers and Automatic, ETSI, University of Huelva, Campus de La Rabida, 21810 Huelva, Spain
| | - J L Alvarez
- Department of Information Technologies, ETSI, University of Huelva, Campus de La Rabida, 21810 Huelva, Spain
| | - J Carbajo
- Applied Electrochemistry Laboratory, Faculty of Experimental Sciences, University of Huelva, Av. 3 de Marzo s/n., 21007 Huelva, Spain
| | - J D Mozo
- Applied Electrochemistry Laboratory, Faculty of Experimental Sciences, University of Huelva, Av. 3 de Marzo s/n., 21007 Huelva, Spain
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Salvador C, Diaz Beveridge R, Niño O, Moya A, Hervas D, Akhoundova D, López-Andújar R, Bruixola G, Segura A, Escoin C, Reche E, Montalva E, Aparicio J. 2288 Validation of the Memorial Sloan Kettering Cancer Center (MSKCC) nomogram after surgery for localized pancreatic adenocarcinoma: Long-term results from a Spanish pancreatic cancer surgery reference centre. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31204-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Aknoundova D, Diaz Beveridge R, Escoin C, Segura A, Bruixola G, Reche E, Gimenez A, Salvador C, Niño O, Aparicio J. 2325 A study of the representativity of the NCIC, PRODIGE and MPACT phase III trials of gemcitabine-erlotinib, FOLFIRINOX and gemcitabine-nab-paclitaxel in patients with advanced pancreatic cancer treated in a real-life setting. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31241-2] [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: 10/22/2022]
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Salvador C, Gómez ON, Ripoll J, Barbosa G, Hervás D, Bataller L, Bernisz Y, Ferrer J, Lucas A, Prat R, Reynés G. 2914 Neuro-oncology information system: A comprehensive tool to improve quality of care. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31629-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Bruixola G, Diaz-Beveridge R, Melian M, Caballero J, Nino O, Escoin C, Akhoundova D, Salvador C, Segura A, Gimenez A, Aparicio J. 2134 Comparative analysis of the Kohne, GERCOR and GEMCAD prognostic models in metastatic colorectal cancer (mCRC) patients treated with first-line bevacizumab-based combination chemotherapy. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31055-3] [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: 11/16/2022]
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Bruixola G, Diaz Beveridge R, Melian M, Reche E, Escoín C, Niño O, Salvador C, Akhoundova D, Navarro E, Palanca S, Caballero J, Giménez A, Segura A, Aparicio J. P-281 The GERCOR and Köhne prognostic models in metastatic colorectal cancer (mCRC) patients treated with bevacizumab-based first-line therapy: comparison and validation of both models in a real-life setting. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.278] [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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21
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Trilla E, Lorente D, Salvador C, Planas J, Placer J, Celma A, Cantarell C, Moreso F, Seron D, Morote J. Native ureteropyelostomy in the treatment of obstructive uropathy in adult renal transplant. Experience and technical alternatives. Actas Urol Esp 2014; 38:552-6. [PMID: 24636074 DOI: 10.1016/j.acuro.2014.02.004] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 01/29/2014] [Accepted: 02/02/2014] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To analyze and evaluate our experience in surgical treatment with the open approach of the complex ureteral stenosis after adult kidney transplantation in a tertiary level hospital in the last seven years. We have reviewed the different surgical options used. PATIENTS AND METHODS A total of 589 consecutive adult renal transplants were performed from January 2005 to December 2012. Of these, 1.1% showed some degree of symptomatic obstructive uropathy which after initial urinary diversion required open surgical approach using the ipsilateral or contralateral native urinary tract. Characteristics of the patient, clinical examinations performed and surgical technique performed as well as their results are presented. RESULTS During the period under review, in 5 men and 2 women who had ureteral stenoses after renal transplant, 7 reparative surgeries were performed by open ureteropyelostomy, using ipsilateral native ureter in 6 cases and contralateral ureter in the remaining case. In one case, uretero-calicial anastomosis was performed due to severe pyelic shrinkage. There were no significant complications. Native kidney nephrectomy was not required for further complications. All the patients operated on had optimum plasma creatinine levels with resolution of previous dilatation. CONCLUSIONS The initial percutaneous nephrostomy followed by open surgical repair using native ureter represents a definitive, valid and optimal alternative in terms of safety and preservation of renal function.
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Affiliation(s)
- E Trilla
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España.
| | - D Lorente
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - C Salvador
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - J Planas
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - J Placer
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - A Celma
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - C Cantarell
- Servicio de Nefrología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - F Moreso
- Servicio de Nefrología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - D Seron
- Servicio de Nefrología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
| | - J Morote
- Servicio de Urología, Hospital Universitari Vall d'Hebron, Universitat Autònoma Barcelona, Barcelona, España
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Mebus S, Kügel J, Zachoval R, Braun S, Haverkämper G, Opgen-Rhein B, Berger F, Horster S, Salvador C, Kappler S, Bauer U, Hess J, Ewert P, Kaemmerer H. Noninvasive assessment of liver function in adults with congenital heart disease (ACHD) by transient elastography (Fibroscan), Acoustic Radiation Force Impulse Imaging (ARFI) and biochemical markers. Thorac Cardiovasc Surg 2014. [DOI: 10.1055/s-0034-1394042] [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: 10/24/2022]
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Graipel ME, Hernández MIM, Salvador C. Evaluation of abundance indexes in open population studies: a comparison in populations of small mammals in southern Brazil. BRAZ J BIOL 2014; 74:553-9. [DOI: 10.1590/bjb.2014.0077] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2012] [Accepted: 04/16/2013] [Indexed: 11/22/2022] Open
Abstract
Many manuscripts comparing populations and/or analysing the structure of animal communities use indexes of captures as synonymous of abundance. However, the basic methods more suitable to this assumption - probabilistic estimates based on equal capture probability - have not been considered. In this study, the deviations caused by different types of capture indexes are compared with a common probabilistic population estimator (Cormack-Jolly-Seber). The analyses showed that Minimum Number Known Alive (MNKA) and the number of individuals showed greater association with the population estimator than with non-probabilistic indexes based on recaptures. Therefore, none of the indexes presented the same performance to estimate population size estimation which can lead to ecological misinterpretation. Some recommendations were also described.
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Klein-Franke A, Kropshofer G, Gassner I, Meister B, Salvador C, Scholl-Bürgi S, Mueller T, Heinz-Erian P. Severe Anemia in 3 Toddlers with Gastric Lactobezoar. Klin Padiatr 2013; 225:159-63. [DOI: 10.1055/s-0033-1334897] [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] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- A. Klein-Franke
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - G. Kropshofer
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - I. Gassner
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - B. Meister
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - C. Salvador
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - S. Scholl-Bürgi
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - T. Mueller
- Department of Pediatrics, Medical University, Innsbruck, Austria
| | - P. Heinz-Erian
- Department of Pediatrics, Medical University, Innsbruck, Austria
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Salvador C, Planas J, Agreda F, Placer J, Trilla E, Lopez M, Morote J. Analysis of the Lipid Profile and Atherogenic Risk during Androgen Deprivation Therapy in Prostate Cancer Patients. Urol Int 2013; 90:41-4. [DOI: 10.1159/000342814] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Accepted: 08/19/2012] [Indexed: 11/19/2022]
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Santaballa A, La De Cueva H, Salvador C, Martinez AG, Guarin M, Lorente D, Palomar L, Aznar I, Dobon F, Bello P. Advantages of One Step Nucleic Acid Amplification (OSNA) Whole Node Assay in Sentinel Lymph Node (SLN) Analysis in Breast Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32847-7] [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: 10/25/2022] Open
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Salvador C, Planas J, Raventós C, Ropero J, Placer J, López M, Morote J. [Impact of androgen deprivation on the lipid profile and atherogenic risk in prostate cancer patients]. Actas Urol Esp 2012; 36:205-9. [PMID: 22178349 DOI: 10.1016/j.acuro.2011.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Revised: 09/19/2011] [Accepted: 09/29/2011] [Indexed: 10/28/2022]
Abstract
OBJECTIVE This study has aimed to analyze the changes observed in the lipid profile and atherogenic risk in prostate cancer patients subjected to androgen deprivation. MATERIAL AND METHODS Between 2001 and 2008, serum lipoproteins (total cholesterol, HDL, LDL and triglycerides) were determined in 636 patients. Of these, 129 were treated with maximum androgen blockade and 177 patients were only treated with LHRH analogue. The control group was formed by 339 subjected to prostate biopsy (212 with prostate cancer and 127 without prostate cancer). The atherogenic risk was calculated using the Castelli formula (total cholesterol/HDL). RESULTS Mean atherogenic risk was 4.2 in the control group and 4 in the group of patients subjected to androgenic deprivation, p>0.05. The mean atherogenic risk in those subjected to monotherapy with LHRH analogues was 4.1 while it was 3.9 in patients subjected to maximal androgen blockade, p=0.02. We did not found significant differences for atherogenic risk according to length of treatment, p>0.05. The multivariate analysis confirmed that the treatment modality was the only significant variable influencing atherogenic risk. CONCLUSIONS This study demonstrates that continuous androgen deprivation does not increase atherogenic risk in patients with prostate cancer. This risk also did not increase during the treatment. The association of bicalutamide to the LHRH analogue seems to have a protective effect on atherogenic risk.
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Zhang W, Shams M, Moffett P, Rabinowits G, Salvador C, Kloecker GH, Laber DA. Final results of a phase II study of cyclophosphamide, etoposide, and estramustine in patients with castration-resistant prostate cancer. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15084] [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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Janjua MA, Kayali F, Jain D, Salvador C, Rabinowits G, Laber DA, Kloecker GH. A phase II trial of extended interval port-a-cath (PAC) flushes. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e19635] [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: 11/20/2022] Open
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Linazasoro G, Sesar A, Valldeoriola F, Compta Y, Herrero MT, Martínez Castrillo JC, López Lozano JJ, Bergaretxe A, Vela L, Fernández JM, Castro A, Kulisevski J, Lezcano E, Vaamonde J, López Del Val J, Chacón J, Vivancos F, Luquin R, Aguilar M, Burguera JA, Salvador C, Menéndez Guisasola L, Catalán MJ, Mir P, Campos V, Grandas F, Mínguez A, Balaguer E, Yáñez R, Leiva C, García Ruiz P, Cubo E. [Neuroprotection in Parkinson's disease: analysis though group of experts' methodology]. Neurologia 2009; 24:113-124. [PMID: 19322690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023] Open
Abstract
INTRODUCTION Currently used antiparkinsonian drugs neither stop nor slow-down the progressive nature of the disease. The final phase of PD is characterized by the presence of symptoms and signs resistant to dopaminergic agents, such as depression, dementia, freezing and falls. Therefore, it is urgent to develop therapies able to positively modify this outcome. Despite neuroprotection is a research priority in PD, no effective strategies have been found so far. METHOD A key informants study was conducted. A group of experts in PD fulfilled a questionnaire of 10 questions to explore the most important topics related to neuroprotection. Afterwards a consensus about the current situation of neuroprotection in PD was established and future directions of development were suggested. RESULTS Most of the answers emphasized the need of new concepts, the limitations of animal models and the difficulties in the difficulties in demonstrating a neuroprotective effects in humans owing to a lack of biomarkers. Some of the experts believe that we are already exerting a disease modifying effect. CONCLUSIONS The concept of neuroprotection should be widened. Animal models should be improved. A reliable biomarker to start neuroprotective therapies long before the appearance of motor symptoms and to evaluate the neuroprotective effect of any therapy should be urgently developed.
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Affiliation(s)
- G Linazasoro
- Centro de Investigación Parkinson, Policlínica Guipuzkoa, San Sebastián.
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Salvador C, Steurer M, Tzankov A, Wolf AM, Gastl G, Konwalinka G, Wolf D. Naturally occurring CD4+ CD25+ regulatory T cells modulate the haematopoietic potential of human stem cells in vitro. Br J Haematol 2008; 142:845-7. [PMID: 18637805 DOI: 10.1111/j.1365-2141.2008.07190.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
3060 Background: Bevacizumab (B-Mab) is a murine-derived monoclonal antibody with human IgG1 framework against vascular endothelial growth factor (VEGF). Soluble PGG β -glucan functions with complement activation product iC3b to activate complement receptor 3 (CR3) and recruit neutrophils and macrophages leading to CR3 (iC3b-receptor)-dependent cytotoxicity of tumors coated with iC3b. In mouse xenograft models, PGG β-glucan has a synergistic effect with human anti-tumor antibodies. Consequently, we hypothesized that the IgG1 antibody B-Mab is capable of binding surface VEGF (sVEGF) on tumor cells thereby activating complement, and synergizing with PGG β-glucan to elicit CR3-dependent cytotoxicity. Methods: SCID mouse xenografts with SKOV-3 human ovarian carcinoma cells were established in groups treated intravenously as follows: PBS treated as control (C), PGG β-glucan alone (B), B-Mab alone (A) and combination PGG β-glucan + B-Mab (B+A), twice weekly for 4 weeks. After implantation, tumors were allowed to grow until they were 300 mm3 before treatment. Results: SKOV-3 tumors in SCID mice showed sVEGF expression and had a complement deposition after B-Mab treatment. In vitro CR3-dependent cytotoxicity assay of B-Mab alone and B-Mab plus active moiety of β-glucan resulted in 0.2% and 19% cytotoxicity respectively. Tumor-bearing SCID mice treated with combination (A+B) showed significant difference in tumor growth inhibition and long-term survival as compared to the other treated groups. Moreover, neutrophil infiltration was markedly increased in the combination (A+B) group compared to the other groups. Conclusions: We have shown that combination treatment with bevacizumab and β -glucan imparts synergistic tumor cytotoxicity that achieves growth inhibition of VEGF-expressing tumor in vivo. Combination therapy should be considered as a potential therapeutic approach in patients with sVEGF positive tumors. (Supported by NIH grant RO1 CA86412 and gift research fund from Biothera, Inc.) No significant financial relationships to disclose.
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Affiliation(s)
- C. Salvador
- J.G. Brown Cancer Center, Univeristy of Louisville, Louisville, KY
| | - B. Li
- J.G. Brown Cancer Center, Univeristy of Louisville, Louisville, KY
| | - R. Hansen
- J.G. Brown Cancer Center, Univeristy of Louisville, Louisville, KY
| | - D. Cramer
- J.G. Brown Cancer Center, Univeristy of Louisville, Louisville, KY
| | - J. Yan
- J.G. Brown Cancer Center, Univeristy of Louisville, Louisville, KY
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Alvarez-Larrán A, Cervantes F, Bellosillo B, Giralt M, Juliá A, Hernández-Boluda JC, Bosch A, Hernández-Nieto L, Clapés V, Burgaleta C, Salvador C, Arellano-Rodrigo E, Colomer D, Besses C. Essential thrombocythemia in young individuals: frequency and risk factors for vascular events and evolution to myelofibrosis in 126 patients. Leukemia 2007; 21:1218-23. [PMID: 17519959 DOI: 10.1038/sj.leu.2404693] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [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: 12/15/2022]
Abstract
The frequency of vascular events and evolution to myelofibrosis (MF) in young individuals with essential thrombocythemia (ET) is not well known. The incidence and predisposing factors to such complications was studied in 126 subjects diagnosed with ET at a median age of 31 years (range: 5-40). Overall survival and probability of survival free of thrombosis, bleeding and MF were analyzed by the Kaplan-Meier method and the presence of the Janus Kinase 2 (JAK2) V617F mutation correlated with the appearance of such complications. The JAK2 mutation (present in 43% of patients) was associated with higher hemoglobin (Hb) (P<0.001) and lower platelets at diagnosis. With a median follow-up of 10 years (range: 4-25), 31 thrombotic events were registered (incidence rate: 2.2 thromboses/100 patients/year). When compared with the general population, young ET patients showed a significant increase in stroke (odds ratio 50, 95% CI: 21.5-115) and venous thromboses (odds ratio 5.3, 95% CI: 3.9-10.6). Thrombosis-free survival was 84% at 10 years, with tobacco use being associated with higher risk of thrombosis. Actuarial freedom from evolution to MF was 97% at 10 years. In conclusion, young ET patients have thrombotic events, especially stroke and venous thrombosis, more frequently than generally considered, whereas they rarely transform to MF.
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Khan MI, Salvador C, Schonard CL, Taft BS, Kloecker GH, Laber DA. A phase I study of thalidomide, capecitabine and temozolomide (TCT) in advanced cancer. J Clin Oncol 2006. [DOI: 10.1200/jco.2006.24.18_suppl.13122] [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: 11/20/2022] Open
Abstract
13122 Background: The aim is to develop a novel oral immuno-chemotherapy regimen against advanced cancers. Methods: Patients were enrolled in cohorts of 3 or 6 in a standard phase I design. Thalidomide 100 mg was kept stable for all cohorts. If well tolerated after 1 week, capecitabine and temozolomide (TCT) were given daily without rest and escalated one at a time until dose limiting toxicity (DLT) occurred. If no DLT occurred within 28 days (1 cycle), the following group was enrolled into the next dose level. Results: Twenty-three patients with advanced cancers have been treated in this study. All patients have been evaluated for toxicity and response. Eighty cycles of TCT have been administered (1–13 cycles/patient). Patient characteristics: Median age 59 (31–79), PS ECOG 1 (0–2). Type of cancer: renal (7), bladder (2), pancreatic (2), prostate (2), colon (2), and lung, gastric, synovial sarcoma, angiosarcoma, anal, nasopharyngeal, breast, esophageal (1 each). Prior to TCT, all patients had objective documentation of progressive metastatic disease after a median of 2 therapies (range 0–4). Objective response: Four subjects (17%) achieved partial response (renal 1, gastric 1, prostate 2), and 4 patients (17%) had stable disease (renal 1, colon 1, pancreas 2), adding to a clinical benefit of 34%. Toxicity: Treatment was well tolerated. Common toxicities included grade 3 thromboses 17%; and grade 1–2: hand-foot syndrome, fatigue, sensory neuropathy, nausea, vomiting, and neutropenia. Based on DLT within the first 28 days, the MTD of daily TCT therapy was thalidomide 100 mg, capecitabine 2000 mg and temozolomide 100 mg. With long-term treatment, majority of the patients required dose interruptions due to fatigue, hand-foot syndrome, and neutropenia. Dose level 2.5 was implemented: daily thalidomide and 3-weeks-on 1-week-off capecitabine and temozolomide. Six patients were treated at dose level 2.5 without toxicities. Conclusions: TCT is an effective palliative oral chemo-immunotherapy for patients with advanced cancer. The recommended dose for a phase II trial is dose level 2.5, including thalidomide 100 mg daily, capecitabine 2000 mg/day and temozolomide 100 mg/day three-weeks on and one-week off regimen. [Table: see text]
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Affiliation(s)
- M. I. Khan
- University of Louisville, Louisville, KY
| | | | | | - B. S. Taft
- University of Louisville, Louisville, KY
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Mata IF, Ross OA, Kachergus J, Huerta C, Ribacoba R, Moris G, Blazquez M, Guisasola LM, Salvador C, Martinez C, Farrer M, Alvarez V. LRRK2 mutations are a common cause of Parkinson's disease in Spain. Eur J Neurol 2006; 13:391-4. [PMID: 16643318 DOI: 10.1111/j.1468-1331.2006.01256.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Pathogenic mutations in the leucine-rich repeat kinase 2 gene (LRRK2; PARK8) have been implicated in autosomal dominant, late-onset parkinsonism. The LRRK2 6055G > A (G2019S) mutation is the most common reported to date, and has been observed in a number of different European populations. So far, only the LRRK2 4321C > G (R1441G) mutation has been identified in the Spanish population. Herein we have assessed the frequency of G2019S in a referral-based series of 225 patients with Parkinson's disease (PD) from the region of Asturias, Northern Spain. The mutant allele was identified in five (2.7%) of the sporadic late-onset patients and was not present in control subjects. All carriers displayed genetic profiles consistent with the same haplotype, as previously reported for Lrrk2 G2019S-positive subjects. None of these patients presented with a family history of parkinsonism at the time of diagnosis. Thus, approximately 5% of sporadic patients with PD from the North of Spain have either Lrrk2 G2019S or R1441G substitutions.
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Affiliation(s)
- I F Mata
- Department of Neurology, Mayo Clinic, Jacksonville, FL 32224, USA
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Checa MA, Requena A, Salvador C, Tur R, Callejo J, Espinós JJ, Fábregues F, Herrero J. Insulin-sensitizing agents: use in pregnancy and as therapy in polycystic ovary syndrome. Hum Reprod Update 2005; 11:375-90. [PMID: 15878899 DOI: 10.1093/humupd/dmi015] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Treatment with insulin-sensitizing agents is a relatively recent therapeutic strategy in women with polycystic ovary syndrome (PCOS) and insulin resistance. The key areas addressed in this review include PCOS and the development of type 2 diabetes mellitus and gestational diabetes, as well as the use of insulin-sensitizing agents, particularly metformin, in the management of infertility in obese and non-obese PCOS women. Treatment with metformin in PCOS women undergoing IVF and the use of metformin during gestation will be discussed. The challenge for the health care professional should be the appropriate utilization of pharmacotherapies to improve insulin sensitivity and lower circulating insulin levels resulting in beneficial changes in PCOS phenotype. Further research into the potential role of other insulin-sensitizing agents, such as pioglitazone and rosiglitazone, in the treatment of infertile women with PCOS is needed.
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Affiliation(s)
- M A Checa
- Department of Obstetrics and Gynecology, Hospital Universitari del Mar, Universitat Autónoma de Barcelona, Barcelona, Spain.
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Salvador C, Bhupalam L, Taft B, Frantz J, Schonard C, Sharma VR, Hendler FJ, Miller DM, Laber DA. A phase I study of thalidomide, capecitabine and temozolomide (TCT) in advanced cancer. J Clin Oncol 2004. [DOI: 10.1200/jco.2004.22.90140.3141] [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)
- C. Salvador
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - L. Bhupalam
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - B. Taft
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - J. Frantz
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - C. Schonard
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - V. R. Sharma
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - F. J. Hendler
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - D. M. Miller
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
| | - D. A. Laber
- University of Louisville, J.G. Brown Cancer Center, Louisville, KY
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Towle DW, Paulsen RS, Weihrauch D, Kordylewski M, Salvador C, Lignot JH, Spanings-Pierrot C. Na++K+-ATPase in gills of the blue crabCallinectes sapidus: cDNA sequencing and salinity-related expression of α-subunit mRNA and protein. J Exp Biol 2001; 204:4005-12. [PMID: 11807118 DOI: 10.1242/jeb.204.22.4005] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.8] [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]
Abstract
SUMMARYMany studies have shown that hyperosmoregulation in euryhaline crabs is accompanied by enhanced Na++K+-ATPase activity in the posterior gills, but it remains unclear whether the response is due to regulation of pre-existing enzyme or to increased gene transcription and mRNA translation. To address this question, the complete open reading frame and 3′ and 5′ untranslated regions of the mRNA coding for the α-subunit of Na++K+-ATPase from the blue crab Callinectes sapidus were amplified by reverse transcriptase/polymerase chain reaction (RT-PCR) and sequenced. The resulting 3828-nucleotide cDNA encodes a putative 1039-amino-acid protein with a predicted molecular mass of 115.6 kDa. Hydrophobicity analysis of the amino acid sequence indicated eight membrane-spanning regions, in agreement with previously suggested topologies. The α-subunit amino acid sequence is highly conserved among species, with the blue crab sequence showing 81–83 % identity to those of other arthropods and 74–77 % identity to those of vertebrate species. Quantitative RT-PCR analysis showed high levels of α-subunit mRNA in posterior gills 6–8 compared with anterior gills 3–5. Western blots of gill plasma membranes revealed a single Na++K+-ATPase α-subunit protein band of the expected size. The posterior gills contained a much higher level of α-subunit protein than the anterior gills, in agreement with previous measurements of enzyme activity. Immunocytochemical analysis showed that the Na++K+-ATPase α-subunit protein detected by α5 antibody is localized to the basolateral membrane region of gill epithelial cells. Transfer of blue crabs from 35 to 5 ‰ salinity was not accompanied by notable differences in the relative proportions of α-subunit mRNA and protein in the posterior gills, suggesting that the enhanced Na++K+-ATPase enzyme activity that accompanies the hyperosmoregulatory response may result from post-translational regulatory processes.
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Affiliation(s)
- D W Towle
- Mount Desert Island Biological Laboratory, Salsbury Cove, ME 04672, USA.
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Callejo J, Salvador C, Miralles A, Vilaseca S, Lailla JM, Balasch J. Long-term ovarian function evaluation after autografting by implantation with fresh and frozen-thawed human ovarian tissue. J Clin Endocrinol Metab 2001; 86:4489-94. [PMID: 11549698 DOI: 10.1210/jcem.86.9.7871] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.4] [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] [Indexed: 02/09/2023]
Abstract
The transplantation of ovarian tissue has recently been the focus of intense investigation with the aim of avoiding premature ovarian failure mainly in patients receiving chemotherapy or radiotherapy for malignant disease. Here, we present an evaluation of the long-term function of both fresh (patients 1, 2, and 3) and cryopreserved (patient 4) ovarian autografts in four premenopausal patients aged 46-49 yr who underwent heterotopic ovarian transplantation and were followed over a 1-yr period without receiving gonadotropins to stimulate follicular growth. In patients 1 and 2, approximately 1 cm(3) ovarian cortical autograft was placed sc in the inner aspect of the arm, whereas and in patients 3 and 4 minced ovarian tissue was placed into a muscle pocket in the abdominal wall. In patients 1, 2, and 4 the ovarian hormone secretion (as suggested by sequential estradiol and FSH serum measurements) was reestablished 3-4 months after autotransplantation, and graft function was not improved by immediate rather than delayed heterotopic ovarian autografting. Despite a reestablished ovarian function, a 2- to 7-fold increase in peripheral FSH concentration was evidenced. The cases reported here suggest that hormonal protection can be restored after fresh or cryopreserved heterotopic ovarian transplantation in women, albeit for only a short reproductive span.
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Affiliation(s)
- J Callejo
- Department of Obstetrics and Gynecology, Hospital Universitari Sant Joan de Déu, Barcelona, Spain.
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Salvador C, Martinez M, Mora SI, Egido W, Farias JM, Gamba G, Escobar LI. Functional properties of a truncated recombinant GIRK5 potassium channel. Biochim Biophys Acta 2001; 1512:135-47. [PMID: 11334631 DOI: 10.1016/s0005-2736(01)00314-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Xenopus laevis oocytes codify a G-protein-activated inward rectifier potassium channel (GIRK5 or Kir3.5). Coinjection of other GIRKs, the muscarinic m2 receptor, or Gbetagamma protein cRNAs is required to observe functional GIRKx-GIRK5 heteromultimers in oocytes. Studies with GIRK2 isoforms have shown that the size of the amino or carboxyl terminus plays a crucial role on giving functional K(+) channels. In this work we studied the properties of a GIRK5 with 25 amino acids deleted toward its amino-terminal domain. Injection of GIRK5-Delta25 cRNA alone displayed large basal and transient inward rectifying currents in oocytes. The instantaneous currents reached a stationary level after a long duration voltage pulse (10 s). For this relaxation, fast (tau(1)) and slow (tau(2)) time constants were estimated at different voltages. Recovery from inactivation followed a monoexponential function (tau=0.95+/-0.07 s). By contrast with other inward rectifier channels, blockade of GIRK5-Delta25 by extracellular Ba(2+) was voltage-independent (K(d)=102+/-2 microM), suggesting the presence of a Ba(2+) site at the external channel vestibule. To confirm this hypothesis, the Ba(2+) sensitivity of two charged mutants GIRK5-Delta25(N129E) and GIRK5-Delta25(K157E) at each of the external loops was determined. GIRK5-Delta25(N129E) and GIRK5-Delta25(K157E) showed a 100-fold and 2-fold higher affinity to Ba(2+), respectively, supporting the existence of this Ba(2+) binding site.
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Affiliation(s)
- C Salvador
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F., México
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Rubio-Martínez A, García-Erce JA, Salvador C, Gómez-Arteta E, Gimeno JJ. Autoimmune haemolytic anaemia induced by propyphenazone. Vox Sang 2000; 75:257. [PMID: 9852417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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Hernandez J, Inarra M, Campeny E, Salvador C, Manzanera G. P-232. Ovulation induction with recombinant human follicle stimulating hormone: a conventional slow protocol compared with a step-down protocol in anovulatory women (World Health Organization group II). Hum Reprod 1999. [DOI: 10.1093/humrep/14.suppl_3.257-a] [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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Fernández-González F, Seijo F, Menéndez-Guisasola L, Salvador C, Roger RL, González-García FJ, Fernández-Martínez JM, Bulla B, Fernández-García C, González-González S, Galindo A. [Stereotactic target identification for neurosurgery of Parkinson disease]. Rev Neurol 1999; 28:600-8. [PMID: 10714346] [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: 02/15/2023]
Abstract
INTRODUCTION The use of applied neurophysiological methods to improve the stereotactic localization of devices in the deep human brain is a high and systematic technology in Parkinson's neurosurgery today. The available standard equipment for clinical neurophysiology practice may constitute the basic set for high tech functional neurosurgery. Free run and event related multiunit recording, naturalistic and electrical evoked potentials, and deep brain microstimulation responses are the basic methodological set to neurophysiological target localization. DEVELOPMENT AND CONCLUSIONS This article is concerned with the topic: set out a high technology using low cost equipment. So our 41 cases experienced in pallidal and thalamic nucleolisis and thalamus and subthalamus DBS results suggest that the proposed equipment and methods are the required to assure accuracy and safety for target location.
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Van Remmen H, Salvador C, Yang H, Huang TT, Epstein CJ, Richardson A. Characterization of the antioxidant status of the heterozygous manganese superoxide dismutase knockout mouse. Arch Biochem Biophys 1999; 363:91-7. [PMID: 10049502 DOI: 10.1006/abbi.1998.1060] [Citation(s) in RCA: 126] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The antioxidant status of several tissues (liver, kidney, lung, brain, heart, muscle, stomach, and spleen) from heterozygous manganese superoxide dismutase (MnSOD) mutant mice (Sod2-/+) was characterized. The activity of MnSOD was decreased (30 to 80%) in all tissues examined. The levels of mRNA coding for the major antioxidant enzymes (CuZnSOD, catalase, and glutathione peroxidase) were not significantly altered in liver, kidney, heart, lung, or brain in the Sod2-/+ mice. The activities of the enzymes were not altered in any of these tissues, with the exception of a decrease in glutathione peroxidase activity in muscle in the Sod2-/+ mice compared to the Sod2+/+ mice. Thus, there was no up-regulation of the activities of the major antioxidant enzymes to compensate for the decrease in MnSOD activity. Reduced glutathione levels were 30 to 50% lower in the lung, brain, and muscle of the Sod2-/+ mice compared to the wild-type Sod2+/+ mice. In addition, the ratio of GSH/GSSG was decreased approximately 50% in Sod2-/+ muscle, indicating that the decrease in MnSOD activity in the Sod2-/+ mice results in some degree of oxidative stress in this tissue.
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Affiliation(s)
- H Van Remmen
- Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, Audie L. Murphy Division, San Antonio, Texas, 78229,
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Abstract
The effect of Maitotoxin (MTX) on the calcium-activated chloride current (ICl-Ca) from Xenopus oocytes was studied, applying the two-electrode voltage clamp technique. MTX increased the current amplitude at all the voltages explored and reduced the time to reach the maximum current level (time to peak). At low toxin concentrations (15 pM), both effects were fully reversible. Activation of ICl-Ca by MTX was secondary to the increment in the intracellular Ca2+ concentration induced by this toxin, since incubation of the oocytes with the cell-permeant Ca2+ chelator BAPTA-AM, greatly reduced the effect of MTX on ICl-Ca. Furthermore, external chloride ions removal also diminished the MTX effect on the current, strongly suggesting that the main current activated by MTX is ICl-Ca. Subsequent applications of a fixed toxin concentration after toxin washout resulted in enhanced ICl-Ca, suggesting that the toxin effect potentiates.
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Affiliation(s)
- M Martínez
- Departamento de Fisología, Instituto Nacional de Cardiología, Mexico D.F., Mexico
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Seijo F, Moreno J, Fernández González F, Salvador C, Menéndez-Guisasola L. Valor del registro neurofisiológico en la cirugía de la enfermedad de Parkinson. Estudio preliminar. Neurocirugia (Astur) 1999. [DOI: 10.1016/s1130-1473(99)70800-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Escobar LI, Salvador C, Martínez M, Vaca L. Maitotoxin, a cationic channel activator. Neurobiology (Bp) 1998; 6:59-74. [PMID: 9713832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Maitotoxin (MTX), a water soluble polyether obtained from the marine dinoflagellate Gambierdiscus toxicus is one of the entities responsible for Ciguatera, a form of seafood poisoning. This toxin is a potent activator of changes in the intracellular Ca2+ concentrations of cells from a wide variety of organisms. Evidence published in the last few years strongly suggests that this toxin has no ionophoretic activity. Molecular mechanics studies, shown for the first time in this review, models MTX as a molecular 'wire'. The present work compiles the few studies developed with electrophysiological techniques. All these reports indicate that MTX is activating a voltage independent, nonselective cationic channel, which in some preparations requires the presence of extracellular Ca2+ for channel activation. The conductance estimated from a variety of tissues is in the order of 12-40 pS. Thus far, no specific blocker has been identified for this channel. The nature of the MTX receptor remains a mistery.
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Affiliation(s)
- L I Escobar
- Departamento de Fisiología, Facultad de Medicina, Universidad Nacional Autónoma de México, México, D.F
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Kaminsky SM, Levy O, Salvador C, Dai G, Carrasco N. Na(+)-I- symport activity is present in membrane vesicles from thyrotropin-deprived non-I(-)-transporting cultured thyroid cells. Proc Natl Acad Sci U S A 1994; 91:3789-93. [PMID: 8170988 PMCID: PMC43667 DOI: 10.1073/pnas.91.9.3789] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The active accumulation of I- in the thyroid gland is mediated by the Na(+)-I- symporter and driven by the Na+ gradient generated by the Na+/K(+)-ATPase. Thyrotropin (TSH) stimulates thyroidal I- accumulation. Rat thyroid-derived FRTL-5 cells require TSH to accumulate I-. TSH withdrawal for over 7 days results in complete loss of Na(+)-I-symport activity in these cells [Weiss, S. J., Philp, N. J. and Grollman, E. F. (1984) Endocrinology 114, 1090-1098]. Surprisingly, membrane vesicles prepared from FRTL-5 cells maintained in TSH-free medium [TSH(-)cells]accumulate I-, suggesting that the absence of Na(+)-I- symport activity in TSH(-) cells cannot be due solely to a decrease in the biosynthesis of either the symporter or a putative activating factor. This finding indicates that the Na(+)-I- symporter is present, probably in an inactive state, in TSH(-) cells despite their lack of Na(+)-I- symport activity. Na(+)-I- symport activity in thyroid membrane vesicles is enhanced when conditions for vesicle preparation favor proteolysis. Subcellular fractionation studies in both TSH(+) and TSH(-) cells show that Na(+)-I- symport activity is mostly associated with fractions enriched in plasma membrane rather than in intracellular membranes, suggesting that the Na(+)-I- symporter may constitutively reside in the plasma membrane and may be activated by TSH.
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Affiliation(s)
- S M Kaminsky
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461
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Kaminsky SM, Levy O, Salvador C, Dai G, Carrasco N. The Na+/I- symporter of the thyroid gland. Soc Gen Physiol Ser 1993; 48:251-262. [PMID: 8503049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Affiliation(s)
- S M Kaminsky
- Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, New York 10461
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