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Ruiz-Algueró M, Alejos B, García Yubero C, Riera Jaume M, Antonio Iribarren J, Asensi V, Pasquau F, Galera CE, Pascual-Carrasco M, Muñoz A, Jarrín I, Suárez-García I, Moreno S, Jarrín I, Dalmau D, Navarro ML, González MI, Blanco JL, Garcia F, Rubio R, Iribarren JA, Gutiérrez F, Vidal F, Berenguer J, González J, Alejos B, Hernando V, Moreno C, Iniesta C, Garcia Sousa LM, Perez NS, Muñoz-Fernández MÁ, García-Merino IM, Fernández IC, Rico CG, de la Fuente JG, Concejo PP, Portilla J, Merino E, Reus S, Boix V, Giner L, Gadea C, Portilla I, Pampliega M, Díez M, Rodríguez JC, Sánchez-Payá J, Gómez JL, Hernández J, Alemán MR, del Mar Alonso M, Inmaculada Hernández M, Díaz-Flores F, García D, Pelazas R, Lirola AL, Moreno JS, Caso AA, Hernández Gutiérrez C, Novella Mena M, Rubio R, Pulido F, Bisbal O, Hernando A, Domínguez L, Crestelo DR, Bermejo L, Santacreu M, Antonio Iribarren J, Arrizabalaga J, Aramburu MJ, Camino X, Rodríguez-Arrondo F, von Wichmann MÁ, Tomé LP, Goenaga MÁ, Bustinduy MJ, Azkune H, Ibarguren M, Lizardi A, Kortajarena X, Gutiérrez F, Masiá M, Padilla S, Navarro A, Montolio F, Robledano C, Gregori Colomé J, Adsuar A, Pascual R, Fernández M, García E, García JA, Barber X, Muga R, Sanvisens A, Fuster D, Berenguer J, de Quirós JCLB, Gutiérrez I, Ramírez M, Padilla B, Gijón P, Aldamiz-Echevarría T, Tejerina F, José Parras F, Balsalobre P, Diez C, Latorre LP, Vidal F, Peraire J, Viladés C, Veloso S, Vargas M, López-Dupla M, Olona M, Rull A, Rodríguez-Gallego E, Alba V, Montero Alonso M, López Aldeguer J, Blanes Juliá M, Tasias Pitarch M, Hernández IC, Calabuig Muñoz E, Cuéllar Tovar S, Salavert Lletí M, Navarro JF, González-Garcia J, Arnalich F, Arribas JR, de la Serna JIB, Castro JM, Escosa L, Herranz P, Hontañón V, García-Bujalance S, López-Hortelano MG, González-Baeza A, Martín-Carbonero ML, Mayoral M, Mellado MJ, Micán RE, Montejano R, Luisa Montes M, Moreno V, Pérez-Valero I, Rodés B, Sainz T, Sendagorta E, Stella Alcáriz N, Valencia E, Ramón Blanco J, Antonio Oteo J, Ibarra V, Metola L, Sanz M, Pérez-Martínez L, Arazo P, Sampériz G, Dalmau D, Jaén A, Sanmartí M, Cairó M, Martinez-Lacasa J, Velli P, Font R, Xercavins M, Alonso N, Repáraz J, de Alda MGR, de León Cano MT, de Galarreta BPR, Segura F, José Amengual M, Navarro G, Sala M, Cervantes M, Pineda V, Calzado S, Navarro M, de los Santos I, Sanz Sanz J, Aparicio AS, Sarriá Cepeda C, Garcia-Fraile Fraile L, Martín Gayo E, Moreno S, Luis Casado J, Dronda F, Moreno A, Jesús Pérez Elías M, Gómez Ayerbe C, Gutiérrez C, Madrid N, del Campo Terrón S, Martí P, Ansa U, Serrano S, Jesús Vivancos M, Cano A, García AA, Bravo Urbieta J, Muñoz Á, Jose Alcaraz M, Villalba MDC, García F, Hernández J, Peña A, Muñoz L, Casas P, Alvarez M, Chueca N, Vinuesa D, Martinez-Montes C, Romero JD, Rodríguez C, Puerta T, Carlos Carrió J, Vera M, Ballesteros J, Ayerdi O, Antela A, Losada E, Riera M, Peñaranda M, Leyes M, Ribas MA, Campins AA, Vidal C, Fanjul F, Murillas J, Homar F, Santos J, Ayerbe CG, Viciana I, Palacios R, González CM, Viciana P, Espinosa N, López-Cortés LF, Podzamczer D, Ferrer E, Imaz A, Tiraboschi J, Silva A, Saumoy M, Ribera E, Curran A, Olalla J, del Arco A, de la torre J, Prada JL, de Lomas Guerrero JMG, Stachowski JP, Martínez OJ, Vera FJ, Martínez L, García J, Alcaraz B, Jimeno A, Iglesias AC, Souto BP, de Cea AM, Muñoz J, Zubero MZ, Baraia-Etxaburu JM, Ugarte SI, Beneitez OLF, de Munain JL, López MMC, de la Peña M, Lopez M, Galera C, Albendin H, Pérez A, Iborra A, Moreno A, Merlos MA, Vidal A, Amador C, Pasquau F, Ena J, Benito C, Fenoll V, Anguita CG, Rabasa JTA, Suárez-García I, Malmierca E, González-Ruano P, Rodrigo DM, Seco MPR, Vidal MAG, de Zarraga MA, Pérez VE, Molina MJT, García JV, Moreno JPS, Górgolas M, Cabello A, Álvarez B, Prieto L, Sanz Moreno J, Arranz Caso A, Gutiérrez CH, Novella Mena M, Galindo Puerto MJ, Fernando Vilalta R, Ferrer Ribera A, Román AR, Brieva Herrero MT, Juárez AR, López PL, Sánchez IM, Martínez JP, Jiménez MC, Perea RT, Ruiz-Capillas JJJ, Pineda JA. Use of Generic Antiretroviral Drugs and Single-Tablet Regimen De-Simplification for the Treatment of HIV Infection in Spain. AIDS Res Hum Retroviruses 2022; 38:433-440. [PMID: 35357907 DOI: 10.1089/aid.2021.0122] [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] [Indexed: 11/13/2022] Open
Abstract
The present study sought to describe the use of generic drugs and single-tablet regimen (STR) de-simplification for the treatment of human immunodeficiency virus (HIV) infection among 41 hospitals from the cohort of the Spanish HIV/AIDS Research Network (CoRIS). In June 2018, we collected information on when generic antiretroviral drugs (ARVs) were introduced in the different hospitals, how the decisions to use them were made, and how the information was provided to the patients. Most of the nine available generic ARVs in Spain by June 2018 had been introduced in at least 85% of the participating hospitals, except for zidovudine (AZT)/lamivudine (3TC) and AZT. The time difference between the effective marketing date of each generic ARV and its first dispensing date in the hospitals was much shorter for the more recently approved generic ARV since the year 2017. However, only up to 20% of the hospitals de-simplified efavirenz (EFV)/tenofovir disoproxil (TDF)/emtricitabine (FTC), dolutegravir (DTG)/abacavir (ABC)/3TC, and rilpivirine (RPV)/TDF/FTC (to generic EFV+TDF/FTC, DTG+generic ABC/3TC, and RPV+generic TDF/FTC, respectively), whereas the generic STR EFV/TDF/FTC was introduced in 87.8% of the centers. The median times between the date of effective marketing of generic TDF/FTC and the date of de-simplification of EFV/TDF/FTC and RPV/TDF/FTC were 723 [interquartile range (IQR): 369-1,119] and 234 (IQR: 142-264) days, respectively; this time was 155 (IQR: 28-287) days for de-simplification of DTG/ABC/3TC. In conclusion, despite the widespread use of generic ARVs, STRs de-simplification was only undertaken in <20% of the hospitals. There was wide variability in the timing of the introduction of each generic ARV after they were available in the market.
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Affiliation(s)
- Marta Ruiz-Algueró
- National Center for Epidemiology, Institute of Health Carlos, Madrid, Spain
- CIBER de Enfermedades Infecciosas, Institute of Health CArlos III, Madrid, Spain
| | - Belén Alejos
- National Center for Epidemiology, Institute of Health Carlos, Madrid, Spain
| | | | | | - José Antonio Iribarren
- Servicio de Enfermedades Infecciosas, Hospital Universitario Donostia, Instituto de Investigación BioDonostia, San Sebastián, Spain
| | - Víctor Asensi
- Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | - Mario Pascual-Carrasco
- CIBER de Enfermedades Infecciosas, Institute of Health CArlos III, Madrid, Spain
- Unidad de Investigación en Telemedicina y Salud Digital (UITes), Instituto de Salud Carlos III, Madrid, Spain
| | - Adolfo Muñoz
- CIBER de Enfermedades Infecciosas, Institute of Health CArlos III, Madrid, Spain
- Unidad de Investigación en Telemedicina y Salud Digital (UITes), Instituto de Salud Carlos III, Madrid, Spain
| | - Inmaculada Jarrín
- National Center for Epidemiology, Institute of Health Carlos, Madrid, Spain
- CIBER de Enfermedades Infecciosas, Institute of Health CArlos III, Madrid, Spain
| | - Inés Suárez-García
- CIBER de Enfermedades Infecciosas, Institute of Health CArlos III, Madrid, Spain
- Infectious Diseases Unit, Department of Internal Medicine, Hospital Universitario Infanta Sofía, Madrid, Spain
- Facultad de Ciencias Biomédicas, Universidad Europea de Madrid, Madrid, Spain
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Cifuentes F, González CM, Aristizábal BH. Dataset for evaluating WRF-Chem sensitivity to biogenic emission inventories in a tropical region. Global online model (MEGAN) vs local offline model (BIGA). Data Brief 2021; 38:107438. [PMID: 34660858 PMCID: PMC8503576 DOI: 10.1016/j.dib.2021.107438] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 09/19/2021] [Accepted: 09/27/2021] [Indexed: 11/23/2022] Open
Abstract
This article presents a dataset comparing emissions of Biogenic Volatile Organic Compounds (BVOC) in a zone of complex topography in the tropical Andes, which presents elevations ranging from 250 to more than 4000 m above sea level in a radius of only 50 km. Two approximations were evaluated, (1) online with the Model of Emissions of Gases and Aerosols from Nature (MEGAN) coupled with the Weather Research and Forecast model with Chemistry (WRF-Chem) and (2) offline applying the Biogenic Altitudinal Gradient Model (BIGA). Modeled concentrations of pollutants (mainly isoprene and tropospheric ozone) were obtained with WRF-Chem employing the biogenic emission models mentioned previously. This information identified areas where BVOC emissions vary significantly, comparing the global emission inventory (MEGAN) and the local inventory (BIGA). Re-evaluation of the emission factors and land cover assigned to those areas in the global online biogenic models should be considered in order to reduce the uncertainty in the values. In addition, the dataset shows the impact of the biogenic emission inventories on the air quality simulations on a tropical high mountain area, where vegetation is diverse, and the altitudinal changes influence meteorological variables.
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Affiliation(s)
- F Cifuentes
- Hydraulic Engineering and Environmental Research Group (GTAIHA), Universidad Nacional de Colombia Sede Manizales, Carrera 27 64-60, Manizales, Colombia
| | - C M González
- Hydraulic Engineering and Environmental Research Group (GTAIHA), Universidad Nacional de Colombia Sede Manizales, Carrera 27 64-60, Manizales, Colombia
| | - B H Aristizábal
- Hydraulic Engineering and Environmental Research Group (GTAIHA), Universidad Nacional de Colombia Sede Manizales, Carrera 27 64-60, Manizales, Colombia
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Mateos AC, Amarillo AC, Carreras HA, González CM. Land use and air quality in urban environments: Human health risk assessment due to inhalation of airborne particles. Environ Res 2018; 161:370-380. [PMID: 29197278 DOI: 10.1016/j.envres.2017.11.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 10/26/2017] [Accepted: 11/20/2017] [Indexed: 05/12/2023]
Abstract
Particle matter (PM) and its associated compounds are a serious problem for urban air quality and a threat to human health. In the present study, we assessed the intraurban variation of PM, and characterized the human health risk associated to the inhalation of particles measured on PM filters, considering different land use areas in the urban area of Cordoba city (Argentina) and different age groups. To assess the intraurban variation of PM, a biomonitoring network of T. capillaris was established in 15 sampling sites with different land use and the bioaccumulation of Co, Cu, Fe, Mn, Ni, Pb and Zn was quantified. After that, particles were collected by instrumental monitors placed at the most representative sampling sites of each land use category and an inhalation risk was calculated. A remarkable intraurban difference in the heavy metals content measured in the biomonitors was observed, in relation with the sampling site land use. The higher content was detected at industrial areas as well as in sites with intense vehicular traffic. Mean PM10 levels exceeded the standard suggested by the U.S. EPA in all land use areas, except for the downtown. Hazard Index values were below EPA's safe limit in all land use areas and in the different age groups. In contrast, the carcinogenic risk analysis showed that all urban areas exceeded the acceptable limit (1 × 10-6), while the industrial sampling sites and the elder group presented a carcinogenic risk higher that the unacceptable limit. These findings validate the use of T. capillaris to assess intraurban air quality and also show there is an important intraurban variation in human health risk associated to different land use.
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Affiliation(s)
- A C Mateos
- Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) and Chemistry Department, FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016 GCA Córdoba, Argentina.
| | - A C Amarillo
- Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) and Chemistry Department, FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016 GCA Córdoba, Argentina
| | - H A Carreras
- Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) and Chemistry Department, FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016 GCA Córdoba, Argentina
| | - C M González
- Instituto Multidisciplinario de Biología Vegetal (IMBIV-CONICET) and Chemistry Department, FCEFyN, Universidad Nacional de Córdoba, Av. Vélez Sarsfield 1611, X5016 GCA Córdoba, Argentina
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Cortés J, Cobo M, González CM, Gómez CD, Abalos M, Aristizábal BH. Environmental variation of PCDD/Fs and dl-PCBs in two tropical Andean Colombian cities using passive samplers. Sci Total Environ 2016; 568:614-623. [PMID: 26953138 DOI: 10.1016/j.scitotenv.2016.02.094] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Revised: 02/13/2016] [Accepted: 02/13/2016] [Indexed: 06/05/2023]
Abstract
Passive air-sampling data of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) taken in Manizales (a medium-sized city) and Bogotá (a megacity), Colombia, were analyzed in order to identify potential sources of pollution and the possible influence of meteorological variables like temperature and precipitation. The results indicate important differences in levels of PCDD/Fs and dl-PCBs between Bogotá and Manizales, attributed to differences in site characteristics and potential local/regional sources. Higher PCDD/Fs concentrations were observed in Bogotá (373fg/m(3)) compared to those observed in Manizales, with mean levels ranging from 64fg/m(3) in a residential zone to 151fg/m(3) around a vehicular-influenced area. Higher dl-PCBs concentrations were observed in the industrial area of Manizales compared to those observed in Bogotá, with mean levels of 6668fg/m(3) and 4388fg/m(3) respectively. In terms of PCDD/Fs congener distribution, there was a predominance of octachlorodibenzodioxin (OCDD) followed by 1,2,3,4,6,7.8-heptachlorodibenzofuran (HpCDF) congeners, with both cities showing higher levels in zones of high vehicular activity. Industrial influence was most evident in dl-PCB levels. In comparison to the mean levels of dl-PCB congeners obtained in the vehicular zones of Bogotá and Manizales, the industrially influenced sampling stations showed higher concentrations of dl-PCB congeners. Passive sampling results suggested that congener concentration profiles are characteristic of their different emission sources, and can be used to distinguish between their industrial or vehicular origins.
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Affiliation(s)
- J Cortés
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia
| | - M Cobo
- Energy, Materials and Environment Laboratory, Department of Chemical Engineering, Universidad de La Sabana, Campus Universitario Puente del Común, Km. 7 Autopista Norte, Bogotá 250001, Colombia
| | - C M González
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia
| | - C D Gómez
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia
| | - M Abalos
- Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain
| | - B H Aristizábal
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia.
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Martínez-Barrio J, Ovalles-Bonilla JG, López-Longo FJ, González CM, Montoro M, Valor L, Martínez LP, Nieto JC, Hinojosa-Dávila MC, Bello N, Monteagudo I, Naredo E, Carreño L. Juvenile, adult and late-onset systemic lupus erythematosus: a long term follow-up study from a geographic and ethnically homogeneous population. Clin Exp Rheumatol 2015; 33:788-794. [PMID: 26575830] [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] [Received: 08/29/2014] [Accepted: 03/23/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVES This paper aims to identify clinical and serological differences, damage accrual and mortality, in juvenile, adult and late-onset SLE. METHODS We conducted our study with patients fulfilling SLE classification criteria taken from the Hospital Gregorio Marañon Autoimmune Systemic Rheumatic Diseases' Registry (1986 to 2012). Clinical characteristics, laboratory data and therapies used during the course of the disease were analysed with patients divided into 3 groups: juvenile-onset (≤ 18 years), adult-onset (19-50) and late onset (>50 years). RESULTS Four hundred and forty-five patients were included. Renal disease and cutaneous manifestations were more frequent in the juvenile-onset group at disease onset. During follow-up, juvenile-onset group presented a higher incidence of renal disease, malar rash, Raynaud's phenomenon, cutaneous vasculitis, and neuropsychiatric manifestations than the other two groups. Arthritis and lymphopoenia were more frequent in the adult-onset group. Arterial hypertension and neoplasm were more frequent in the late-onset group. Low serum complement, anti-dsDNA, anti-U1RNP and anti-Sm antibodies were more common in the juvenile-onset group. Patients with late-onset SLE had more damage accrual. Thirty-seven patients (8.3%) died during the study. All-cause mortality was significantly higher in the late-onset group. Age at disease onset >50 years was an independent risk factor for damage accrual (OR, 2.2; 95%CI, 1.1-4.6; p=0.029) and mortality (OR, 2.6; 95%CI, 1.1-6.3; p=0.03). CONCLUSIONS We found significant differences in clinical and serological profiles between juvenile, adult and late-onset SLE. The most significant of which was a higher prevalence of neuropsychiatric and renal complications as well as different autoantibody signatures for the juvenile-onset group.
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Affiliation(s)
- J Martínez-Barrio
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain.
| | - J G Ovalles-Bonilla
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - F J López-Longo
- Department of Rheumatology, Gregorio Marañón General Hospital; and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
| | - C M González
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - M Montoro
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - L Valor
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - L P Martínez
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - J C Nieto
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - M C Hinojosa-Dávila
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - N Bello
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - I Monteagudo
- Unit of Paediatric Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - E Naredo
- Department of Rheumatology, Gregorio Marañón General Hospital, Madrid, Spain
| | - L Carreño
- Department of Rheumatology, Gregorio Marañón General Hospital; and Facultad de Medicina, Universidad Complutense de Madrid, Madrid, Spain
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Cortés J, González CM, Morales L, Abalos M, Abad E, Aristizábal BH. PCDD/PCDF and dl-PCB in the ambient air of a tropical Andean city: passive and active sampling measurements near industrial and vehicular pollution sources. Sci Total Environ 2014; 491-492:67-74. [PMID: 24555963 DOI: 10.1016/j.scitotenv.2014.01.113] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/29/2014] [Accepted: 01/29/2014] [Indexed: 06/03/2023]
Abstract
Concentration gradients were observed in gas and particulate phases of PCDD/F originating from industrial and vehicular sources in the densely populated tropical Andean city of Manizales, using passive and active air samplers. Preliminary results suggest greater concentrations of dl-PCB in the mostly gaseous fraction (using quarterly passive samplers) and greater concentrations of PCDD/F in the mostly particle fraction (using daily active samplers). Dioxin-like PCB predominance was associated with the semi-volatility property, which depends on ambient temperature. Slight variations of ambient temperature in Manizales during the sampling period (15°C-27°C) may have triggered higher concentrations in all passive samples. This was the first passive air sampling monitoring of PCDD/F conducted in an urban area of Colombia. Passive sampling revealed that PCDD/F in combination with dioxin-like PCB ranged from 16 WHO-TEQ2005/m(3) near industrial sources to 7 WHO-TEQ2005/m(3) in an intermediate zone-a reduction of 56% over 2.8 km. Active sampling of particulate phase PCDD/F and dl-PCB were analyzed in PM10 samples. PCDD/F combined with dl-PCB ranged from 46 WHO-TEQ2005/m(3) near vehicular sources to 8 WHO-TEQ2005/m(3) in the same intermediate zone, a reduction of 83% over 2.6 km. Toxic equivalent quantities in both PCDD/F and dl-PCB decreased toward an intermediate zone of the city. Variations in congener profiles were consistent with variations expected from nearby sources, such as a secondary metallurgy plant, areas of concentrated vehicular emissions and a municipal solid waste incinerator (MSWI). These variations in congener profile measurements of dioxins and dl-PCBs in passive and active samples can be partly explained by congener variations expected from the various sources.
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Affiliation(s)
- J Cortés
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia.
| | - C M González
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia
| | - L Morales
- Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain
| | - M Abalos
- Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain
| | - E Abad
- Laboratory of Dioxins, Environmental Chemistry Department, IDAEA-CSIC, Jordi Girona 18-26, Barcelona 08034, Spain
| | - B H Aristizábal
- Hydraulic Engineering and Environmental Research Group, Universidad Nacional de Colombia Sede Manizales, Cra 27 64-60 Bloque H Palogrande, Manizales, Colombia
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Merlo C, Abril A, Amé MV, Argüello GA, Carreras HA, Chiappero MS, Hued AC, Wannaz E, Galanti LN, Monferrán MV, González CM, Solís VM. Integral assessment of pollution in the Suquía River (Córdoba, Argentina) as a contribution to lotic ecosystem restoration programs. Sci Total Environ 2011; 409:5034-5045. [PMID: 21925711 DOI: 10.1016/j.scitotenv.2011.08.037] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2010] [Revised: 08/12/2011] [Accepted: 08/15/2011] [Indexed: 05/31/2023]
Abstract
The Suquía River lower-middle basin (Córdoba, Argentina) is subject to a strong anthropic impact because it receives pollutants from different sources (industries, wastewaters, heavy traffic, agricultural land use, etc.) We have assessed the degree of watershed degradation of Suquía River lower-middle sections through the analysis of different ecosystem compartments (air, water, riparian soil, sediments and biota), in order to provide useful data to be considered in future river restoration programs. Four study sites were selected along the river (La Calera city, Córdoba city, Corazón de María village and Río Primero city) which were sampled during the low- and high-water flow periods. We analyzed: a) chemical and physical characteristics of water, sediments, and riparian soil; b) heavy metal content of water and sediments, and c) semi-volatile organic compounds in air. Besides, pollutant bioindicators such as fish assemblages, lichens (Usnea amblyoclada), vascular plants (Tradescantia pallida), and microorganisms (fecal coliform and Escherichia coli) were used to further assess the status of the river. All analyzed ecological compartments were affected by water pollution, particularly, fish assemblages, sediments and riparian soils by heavy metal and coliform bacteria. Moreover, we detected a possible contribution of sulfur and a high pollutant content in air that merit further research about other air-water exchanges. Accordingly, we strongly suggest that an action to restore or remediate the anthropic effect on the Suquía River be extended to all possible compartments along the river.
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Affiliation(s)
- C Merlo
- Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, Av. Valparaiso s/n. Ciudad Universitaria, cc 509, CP 5000, Córdoba, Argentina.
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8
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Rodriguez JH, Carreras HA, Pignata ML, González CM. Nickel exposure enhances the susceptibility of lichens Usnea amblyoclada and Ramalina celastri to urban atmospheric pollutants. Arch Environ Contam Toxicol 2007; 53:533-40. [PMID: 17882471 DOI: 10.1007/s00244-006-0034-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2006] [Accepted: 01/09/2007] [Indexed: 05/17/2023]
Abstract
In the present study, the effect of nickel incorporation on the chemical response of Ramalina celastri (Spreng.) Krog & Swinsc. and Usnea amblyoclada (Müll. Arg.) Zahlbr. exposed to urban atmospheric pollutants was assessed. Lichen thalli were treated with Ni solutions and then transplanted to two areas of the city of Córdoba with different levels of pollution. After exposure, the concentration of chlorophyll a, chlorophyll b, phaeophytin a, hydroperoxy conjugated dienes, malondialdehyde, sulphur content, electric conductivity of the immersion water, and nickel content were measured. Also, a Pollution Index was calculated for each lichen species. The exposure to Ni altered the physiological response to atmospheric pollutants in both lichen species, making them more sensitive to any damage caused by them. When the species were compared, it was observed that R. celastri accumulated more sulphur than U. amblyoclada.
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Affiliation(s)
- J H Rodriguez
- Cátedra de Química General, Universidad Nacional de Córdoba, Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina.
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9
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Abstract
We experimentally and numerically study the phenomenon of ghost resonance in coupled nonlinear systems. Two mutually injected semiconductor lasers are externally perturbed in their pump currents by two respective periodic signals of different frequencies f(1) and f(2). For small amplitudes of the external modulations, the two laser intensities display synchronized optical pulses, in the form of dropout events occurring at irregular times. By adjusting the amplitude and frequencies of the driving signals, the system exhibits a ghost resonance in the dropout appearance at a frequency f(r) not present in the distributed inputs.
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Affiliation(s)
- Javier M Buldú
- Departament de Física i Enginyeria Nuclear, Universitat Politècnica de Catalunya, Colom 11, E-08222 Terrassa, Spain
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10
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López-Longo FJ, Rodríguez-Mahou M, Escalona-Monge M, González CM, Monteagudo I, Carreño-Pérez L. Simultaneous identification of various antinuclear antibodies using an automated multiparameter line immunoassay system. Lupus 2005; 12:623-9. [PMID: 12945722 DOI: 10.1191/0961203303lu439oa] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The objective was to determine the sensitivity and specificity of an automated multiparameter line immunoassay system compared with other techniques for the identification of autoantibodies in rheumatic diseases. We studied sera from 90 patients. Anti-U1RNP, anti-Sm, anti-Ro/SS-A, anti-La/SS-B, anti-Jo 1 and anti-Scl 70 antibodies were identified by counterimmunoelectrophoresis (CIE) techniques, enzyme-linked immunosorbent assay (ELISA), immunoblotting (IB) using extracts of rabbit thymus and human placenta, and an automated multiparameter line immunoassay system (INNO-LIA ANA UPDATE K-1090) that detects nine different antibodies simultaneously (anti-U1RNP, anti-Sm, anti-Ro/SS-A, anti-La/SS-B, anti-Scl 70, anti-Jo 1, anticentromere, antihistone, and antiribosomal P protein). The line immunoassay system equaled or surpassed the other techniques in the identification of anti-Sm, anti-La/SS-B, anti-Jo 1 and anti-Scl 70 antibodies (sensitivity 100%, specificity 94-100%) and was similarly effective in the case of anti-U1RNP (sensitivity 87.5%, specificity 93.9%) and anti-Ro/SS-A (sensitivity 91.4%, specificity 87.2%) antibodies. In addition, this technique detected more 52 and 60 kD anti-Ro/SS-A sera than IB. Nine antibodies can be detected with this method at a cost of 25.38 Euros per serum sample. In five hours, 19 sera can be studied. The approximate cost of detecting these nine antibodies with an automated ELISA system would be 28.93 Euros, which allows 10 sera to be studied in four hours. In conclusion, the automated multiparameter line immunoassay system is a valid method for the detection of autoantibodies in rheumatic diseases. Its most notable advantages are automated simultaneous detection of several autoantibodies in the same serum and its lower cost compared with ELISA techniques.
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Affiliation(s)
- F J López-Longo
- Service of Rheumatology, Hospital General Universitario Gregorio Marañón, Universidad Complutense of Madrid, Madrid, Spain
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11
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González CM, Pignata ML, Orellana L. Applications of redundancy analysis for the detection of chemical response patterns to air pollution in lichen. Sci Total Environ 2003; 312:245-253. [PMID: 12873413 DOI: 10.1016/s0048-9697(03)00253-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The lichens Ramalina celastri (Spreng.) Krog & Swinsc., Punctelia microsticta (Müll. Arg.) Krog and Canomaculina pilosa (Stizenb.) Elix & Hale were transplanted simultaneously to 17 urban-industrial sites in a northwestern area of Córdoba city, Argentina. The transplantation sites were set according to different environmental conditions: traffic, industries, tree cover, building height, topographic level, position in the block and distances from the river and from the power plant. Three months later, chlorophyll a, chlorophyll b, phaeophytin a, soluble proteins, hydroperoxy conjugated dienes, malondialdehyde concentration and sulfur accumulation were determined, and a pollution index was calculated for each sampling site. Redundancy analysis was applied to detect the variation pattern of the lichen variables that can be 'best' explained by the environmental variables considered. The present study provides information about both the specific pattern response of each species to atmospheric pollution, and environmental conditions that determine it. As regards pollutants emission sources R. celastri showed a chemical response associated mainly with pollutant released by the power plant and traffic. P. microsticta and C. pilosa responded mainly to industrial sources. Regarding environmental conditions that affect the spreading of air pollutants and their incidence on the bioindicator, the topographic level and tree cover surrounding the sampling site were found to be important for R. celastri, tree cover surrounding the sampling site and the building height affected P. microsticta, while building height did so for C. pilosa.
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Affiliation(s)
- C M González
- Cátedra de Química General, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avda. Vélez Sársfield 299, 5000 Cordoba, Argentina.
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12
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Pignata ML, Gudiño GL, Wannaz ED, Plá RR, González CM, Carreras HA, Orellana L. Atmospheric quality and distribution of heavy metals in Argentina employing Tillandsia capillaris as a biomonitor. Environ Pollut 2002; 120:59-68. [PMID: 12199468 DOI: 10.1016/s0269-7491(02)00128-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The atmospheric quality and distribution of heavy metals were evaluated throughout a wide region of Argentina. In addition, the biomonitor performance of Tillandsia capillaris Ruiz & Pav. f. capillaris was studied in relation to the accumulation of heavy metals and to its physiologic response to air pollutants. A sampling area of 50,000 km2 was selected in the central region of the Argentine Republic. This area was subdivided into grids of 25 x 25 km. Pools of T. capillaris, where present, were collected at each intersection point. From each pool three sub-samples were analyzed independently. Furthermore, five replicates were collected at 20% of the points in order to analyze the variability within the site. The content of Co, Cu, Fe, Ni, Mn, Pb and Zn was determined by Atomic Absorption Spectrometry. Chemical-physiological parameters were also determined to detect symptoms of foliar damage. Chlorophylls, phaeophytins, hydroperoxy conjugated dienes, malondialdehyde and sulfur were quantified in T. capillaris. Some of these parameters were used to calculate a foliar damage index. Data sets were evaluated by one-way ANOVA, correlation analysis, principal component analysis and mapping. Geographical distribution patterns were obtained for the different metals reflecting the contribution of natural and anthropogenic emission sources. According to our results it can be inferred that Fe, Mn and Co probably originated in the soil. For Pb, the highest values were found in the mountainous area, which can be attributed to the presence of Pb in the granitic rocks. Ni showed mainly an anthropogenic origin, with higher values found in places next to industrial centers. For Zn the highest values were in areas of agricultural development. The same was observed for Cu, whose presence could be related to the employment of pesticides. The foliar damage index distribution map showed that the central and southeastern zones were the ones where the major damage in the bioindicator was found. The central zone coincides with the city of Córdoba whereas the southeastern area is strictly agricultural, so the high values found there could be related to the use of pesticides.
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Affiliation(s)
- M L Pignata
- Cátedra de Química General, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Argentina.
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13
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González CM, Pignata ML. Chemical response of transplanted lichen Canomaculina pilosa to different emission sources of air pollutants. Environ Pollut 2000; 110:235-242. [PMID: 15092838 DOI: 10.1016/s0269-7491(99)00300-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/1998] [Accepted: 11/03/1999] [Indexed: 05/24/2023]
Abstract
The lichen Canomaculina pilosa was transplanted to 21 sampling sites, plus two controls sites in a north-western area of Córdoba City, Argentina. The transplantation sites were set according to traffic levels, industry condition and distances from the power plant. On the transplanted lichens chlorophyll a, chlorophyll b, phaeophytin a, soluble proteins, hydroperoxy-conjugated dienes, malondialdehyde concentration and sulphur accumulation were determined. A pollution index was calculated for each sampling site. The present study provides information about chemical parameters showing variations as the response of C. pilosa to different emission sources of air pollutants. The C. pilosa chemical response was mainly associated to industries. Significant higher values were observed in phaeophytin a/chlorophyll a ratio, sulphur content and pollution index values in lichen material transplanted at sites with industry. For the distance from the power plant category, only the hydroperoxy-conjugated dienes concentration showed significant differences. For the different traffic levels no significant variations were observed for any of the chemical parameters quantified.
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Affiliation(s)
- C M González
- Cátedra de Química General, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avda. Vélez Sársfield 299, 5000 Córdoba, Argentina.
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Carreño L, López-Longo FJ, Monteagudo I, Rodríguez-Mahou M, Bascones M, González CM, Saint-Cyr C, Lapointe N. Immunological and clinical differences between juvenile and adult onset of systemic lupus erythematosus. Lupus 1999; 8:287-92. [PMID: 10413207 DOI: 10.1191/096120399678847786] [Citation(s) in RCA: 105] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Systemic lupus erythematosus (SLE) in children usually follows a more severe course than in adults, but sometimes in the previous studies reported there are many confounding factors. OBJECTIVE To analyse the immunological and clinical characteristics of SLE juvenile onset and SLE adult onset. METHODS We studied 179 patients with SLE, 49 patients were aged 6-18 yrs at onset of disease. Anti-dsDNA antibodies were detected by radioimmunoassay and antibodies to extractable nuclear antigens (ENA): anti-nRNP, anti-Sm, anti-Ro/SS-A and anti-La/SS-B antibodies by ELISA, counterimmuno-electrophoresis and immunoblotting. RESULTS Juvenile-onset SLE shows a higher frequency of cutaneous vasculitis (44.8% vs 27.6%; P < 0.05), seizures (18.3% vs 7.6%; P < 0.05) nephropathy (67.3% vs 48.4%; P < 0.025), and discoid lupus erythematosus (26.5% vs 13.8%; P < 0.05). The incidence of articular manifestations is lower than in adults (85.7% vs 96.1%; P < 0.025). No significant differences were found between the two groups in relation with the prevalence of antinuclear antibodies. CONCLUSIONS Juvenile-onset SLE has more frequent neurological and renal manifestations than adult-onset SLE, but immunological markers are similar in both groups. These features suggest the most severe clinical manifestations in the juvenile-onset SLE group are not related with the presence of studied antibodies by different methods.
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Affiliation(s)
- L Carreño
- Service of Rheumatology, Gregorio Marañón Hospital, Universidad Complutense of Madrid, Spain
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López-Longo FJ, Monteagudo I, González CM, Moreno AC, Rodríguez Mahou M, Grau R, Carreño L. Anti-BB'-Sm antibodies, anticardiolipin antibodies, and thrombosis in systemic lupus erythematosus. J Rheumatol 1998; 25:1743-9. [PMID: 9733455] [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: 02/08/2023]
Abstract
OBJECTIVE Anticardiolipin antibodies (aCL) are associated with thrombosis in patients with systemic lupus erythematosus (SLE). Our aim was to determine whether there is an association between aCL, anti-Sm antibodies, and thrombosis in patients with SLE. METHODS Sera from 153 patients with SLE were studied by ELISA, immunoblotting, and counter-immunoelectrophoresis (CIE) for anti-Sm antibodies, aCL and anti-dsDNA antibodies were detected by ELISA and radioimmunoassay, respectively. RESULTS Anti-Sm antibodies were detected in 62 patients (40.5%) by ELISA and in 16 (10.4%) by CIE; IgG-anti-BB'-Sm in 44 (28.7%) by immunoblotting; IgG-aCL in 82 (53.5%), IgM-aCL in 44 (28.7%), and anti-dsDNA antibodies in 128 (83.6%). Anti-Sm and anti-dsDNA antibodies were significantly more frequent in patients with than in patients without aCL. Of the 89 patients with aCL, 36 (40.4%) showed IgG-anti-BB'-Sm antibodies (OR: 4.7; 95% CI: 2-10.5). Thrombosis was present in 20 (22.4%) SLE patients with aCL and in two (3.1 %) SLE patients without aCL (OR: 8.9; 95% CI: 2.4-31.8). Of the 22 patients with thrombosis, five (22.7%) had precipitating anti-Sm antibodies (OR: 3.2; 95% CI: 1.04-9.8) and 14 (63.6%) showed IgG-anti-BB'-Sm antibodies (OR: 5.8; 95% CI: 2.3-14). Anti-BB'-Sm and aCL were significantly more frequent in patients with anti-dsDNA antibodies (32 and 62%) than in patients without these antibodies (12 and 36%) (OR: 3.4 and 2.9; 95% CI: 1.03-11.1 and 1.2-6.7, respectively). CONCLUSION IgG-anti-BB'-Sm antibodies are associated with aCL, anti-dsDNA, and thrombosis in patients with SLE. Our findings suggest a possible association between anti-Sm, anti-dsDNA, and aCL responses in these patients.
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Affiliation(s)
- F J López-Longo
- Service of Rheumatology, Gregorio Marañón Hospital, Universidad Complutense of Madrid, Spain
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González CM, López-Longo FJ, Samson J, Monteagudo I, Grau R, Rodríguez-Mahou M, St-Cyr C, Lapointe N, Carreño L. Antiribonucleoprotein antibodies in children with HIV infection: a comparative study with childhood-onset systemic lupus erythematosus. AIDS Patient Care STDS 1998; 12:21-8. [PMID: 11361881 DOI: 10.1089/apc.1998.12.21] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A number of clinical and laboratory features of HIV infection are found in systemic lupus erythematosus (SLE). The objective of this study was to analyze the presence of circulating antibodies to small nuclear ribonucleoproteins (snRNP) in both diseases. Sera from 44 HIV-infected children, from 22 patients with childhood-onset SLE, and from 50 healthy children were studied. Anti-snRNP antibodies were detected by ELISA using recombinant and affinity-purified nuclear antigens, by counterimmunoelectrophoresis (CIE), and by immunoblotting using extractable nuclear antigens. Results included the detection of anti-snRNP antibodies by ELISA in 30 HIV-infected patients (68.1%) and 19 SLE patients (86.3%). These antibodies were directed against U1-RNP (61.3% and 77.2%, respectively), Sm (29.5% and 54.5%, respectively), 60 kDa Ro/SS-A (47.7% and 50%, respectively), and La/SS-B proteins (18.1% and 9%, respectively). None of the HIV-infected children and 11 SLE patients (50%) showed anti-snRNP antibodies by CIE. None of the HIV-infected patients showed anti-70 kDa U1-RNP or anti-D-Sm antibodies by immunoblotting. No differences between the two groups were noted on the presence of nonprecipitating anti-snRNP antibodies. No such reactivities were observed among the normal sera tested. The authors concluded that nonprecipitating anti-snRNP antibodies in HIV-infected children are as frequent as in childhood-onset SLE. The significance of these antibodies is not clear at present. Although polyreactive and low-affinity antibodies and a mechanism of molecular mimicry may explain these results, a specific stimulation of B cells by nuclear antigens could not be excluded.
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Affiliation(s)
- C M González
- Experimental Medicine and Surgery Unit, Gregorio Marañón Hospital, Universidad Complutense de Madrid, Spain
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López-Longo FJ, Monteagudo I, González CM, Grau R, Carreño L. Systemic lupus erythematosus: clinical expression and anti-Ro/SS--a response in patients with and without lesions of subacute cutaneous lupus erythematosus. Lupus 1997; 6:32-9. [PMID: 9116716 DOI: 10.1177/096120339700600105] [Citation(s) in RCA: 19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
UNLABELLED Patients with subacute cutaneous lupus erythematosus (SCLE) have recurrent annular and/or psoriasiphorm skin lesions, with or without systemic disease. OBJECTIVE To analyse the clinical expression and the Ro/SS-A response associated with SCLE in patients with systemic lupus erythematosus (SLE). METHODS 128 consecutive patients with SLE were studied. Anti-Ro/SS-A antibodies were detected by ELISA, (anti-60 kD Ro/SSA antibodies), immunoblotting (anti-60 kD and anti-52 kD Ro/SS-A antibodies) and counterimmunoelectrophoresis (CIE). RESULTS Seventeen patients (13.2%) showed SCLE lesions. Photosensitivity was more frequent in patients with SCLE (82%) than in patients without these cutaneous lesions (45%) (OR: 5.6). Arthritis (OR: 6.3), Raynaud's phenomenon (OR: 4.9), pleuritis (OR: 7.6), central nervous system disorder (OR: 6.4), renal disease (OR: 6.3), anemia (OR: 7.9), hypocomplementemia (OR: 6.1) and anti-dsDNA antibodies (OR: 12.7) were significantly more frequent in patients without SCLE. Anti-Ro/SS-A antibodies were detected in 15 (88.2%) patients with SCLE and 62 (55.8%) patients without SCLE by ELISA, in 10 (58.8%) and 34 (30.6%) patients by immunoblotting, and in 13 (76.4%) and 34 (30.6%) by CIE, respectively. Anti-60 kD-Ro/SS-A and anti-La antibodies, but not anti-52 kD-Ro/SS-A, were significantly more frequent in patients with SCLE than in patients without SCLE. CONCLUSIONS The presence of SCLE lesions in patients with SLE is associated with a more favourable prognosis. The major anti-Ro/SS-A response is directed against the native 60 kD Ro/SS-A protein.
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Affiliation(s)
- F J López-Longo
- Service of Rheumatology, Gregorio Marañón Hospital, Universidad Complutense of Madrid, Spain
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González CM, Pignata ML. Chemical response of the lichen Punctelia subrudecta (Nyl.) Krog transplanted close to a power station in an urban-industrial environment. Environ Pollut 1997; 97:195-203. [PMID: 15093356 DOI: 10.1016/s0269-7491(97)00102-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/1997] [Accepted: 07/09/1997] [Indexed: 05/24/2023]
Abstract
The lichen Punctelia subrudecta (Nyl.) Krog was transplanted to 22 biomonitoring sites in a northwestern area of Córdoba city, Argentina and tested for chlorophyll a, chlorophyll b, phaeophytin a, soluble protein, hydroperoxy conjugated dienes (HPCD), malondialdehyde (MDA) concentration and sulphur accumulation. A pollution index (PI) was calculated for each biomonitoring site. The biomonitoring sites were set according to (1) traffic levels, (2) industrial density and (3) distance of the power station close to each site. The biomonitor's chemical response was associated with industries as well as power stations. Significant differences were observed in sulphur content, MDA concentration and PI values in lichen material transplanted to sites with different industrial densities. The higher values for these parameters were found at sites with high industrial levels. At the same time, significant differences were detected for sulphur content in samples at different distances from the power station, with higher accumulation in samples located far from the power plant. For MDA concentration, effect of different levels of industrial density was observed only at points close to the power station, probably because of higher levels of humidity near the power plant. For PI significantly higher values were observed in samples at points far from the power station and with high industrial density. This shows the additive effect of the principal emission sources that act on the response of P. subrudecta to air pollutants.
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Affiliation(s)
- C M González
- Cátedra de Química General, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avda, Vélez Sársfield 299, 5000 Córdoba, Argentina
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González CM, López-Longo FJ, Monteagudo I, Grau R, Rodríguez-Mahou M, St-Cyr C, Lapointe N, Carreño L. Antiribonucleoprotein antibodies in children with human immunodeficiency virus infection: comparative study with childhood-onset systemic lupus erythematosus. Pediatr AIDS HIV Infect 1996; 7:401-8. [PMID: 11361496] [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: 04/16/2023]
Abstract
UNLABELLED A number of clinical and laboratory features of human immunodeficiency virus (HIV) infection are found in systemic lupus erythematosus (SLE). OBJECTIVE To analyze the presence of circulating antibodies to small nuclear ribonucleoproteins (snRNP) in both diseases. METHODS We studied sera from 44 HIV-infected children, from 22 patients with childhood-onset SLE, and from 50 healthy children. Anti-snRNP antibodies were detected by (ELISA) using recombinant and affinity-purified nuclear antigens, by counterimmunoelectrophoresis (CIE), and by immunoblotting using extractable nuclear antigens. RESULTS Anti-snRNP antibodies were detected by ELISA in 30 HIV-infected patients (68.1%) and 19 SLE patients (86.3%). These antibodies were directed against U1-RNP (61.3% and 77.2%), Sm (29.5% and 54.5%), 60kD-Ro/SS-A (47.7% and 50%), and La/SS-B proteins (18.1% and 9%), respectively. None of the HIV-infected children and 11 SLE patients (50%) showed anti-snRNP antibodies by CIE. None of the HIV-infected patients showed anti-70 kD U1-RNP or anti-D-Sm antibodies by immunoblotting. No differences between the two groups were noted relative to the presence of nonprecipitating anti-snRNP antibodies. No such reactivities were observed among the normal sera tested. CONCLUSIONS Nonprecipitating anti-snRNP antibodies in HIV-infected children are as frequent as in childhood-onset SLE. The significance of these antibodies is not clear at present. Perhaps they are polyreactive and low-affinity antibodies and a mechanism of molecular mimicry may explain these results; however, we cannot exclude a specific stimulation of B-cells by nuclear antigens.
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Affiliation(s)
- C M González
- Rheumatology Service, Gregorio Marañón Hospital, Universidad Complutense de Madrid, Spain
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Alonso JC, Lopez-Longo FJ, Lampreave JL, González CM, Vegazo O, Carreño L, Almoguera I. Abdominal scintigraphy using 99mTc-HMPAO-labelled leucocytes in patients with seronegative spondylarthropathies without clinical evidence of inflammatory bowel disease. Eur J Nucl Med 1996; 23:243-6. [PMID: 8599954 DOI: 10.1007/bf00837621] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Abdominal scintigraphy with technetium-99m hexamethylpropylene amine oxime (99mTc-HMPAO)-labelled leucocytes is an excellent tool for evaluating disease extent and activity of intestinal lesions in patients with inflammatory bowel disease (IBD). In some cases of seronegative spondylarthropathies (SSp), IBD may remain subclinical. The aim of this study was to evaluate the presence of positive abdominal scintigraphy in patients with SSp and without clinical symptoms or signs of IBD. To this end we studied 32 patients with active SSp (European Spondylarthropathy Study Group 1991 criteria) without clinical evidence of IBD (eight had ankylosing spondylitis, four psoriatic arthritis, three reactive arthritis an 17 undifferentiated SSp) and 11 controls without SSp. All SSp and control patients received similar doses of non-steroidal anti-inflammatory drugs (NSAIDs). Abdominal scintigraphic images were obtained at 30 and 120 min after re-injection of 99mTc-HMPAO-labelled leucocytes. The 99mTc-HMPAO-labelled leucocyte scan was positive in 17 patients with SSp (53.1%) (six with ankylosing spondylitis, three with psoriatic arthritis, two with reactive arthritis and six with undifferentiated SSp). Fourteen patients scored from 2 to 4 on the intensity of uptake scale. The colon and terminal ileum were predominantly involved. Axial involvement was more frequent in patients with a positive scan than in patients with negative results (P<0.05) (64.7% vs 26.6%; odds ratio: 5). No control patient showed a positive scan. It is concluded that 99mTc-HMPAO-labelled leucocyte scan shows increased uptake among patients with SSp without evidence of IBD. These findings provide new evidence linking SSp with intestinal inflammation and suggest that in some cases a bowel-related process could contribute to the development of SSp. Long-term follow-up studies with more patients are necessary to evaluate the diagnostic and therapeutic implications of these results.
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Affiliation(s)
- J C Alonso
- Department of Nuclear Medicine, Hospital Universitario Gregorio Marañón, c/Maiquez 7, E-28009 Madrid, Spain
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González CM, Casanovas SS, Pignata ML. Biomonitoring of air pollutants from traffic and industries employing Ramalina ecklonii (Spreng.) Mey. and Flot. in Córdoba, Argentina. Environ Pollut 1996; 91:269-277. [PMID: 15091418 DOI: 10.1016/0269-7491(95)00076-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/1995] [Accepted: 09/13/1995] [Indexed: 05/24/2023]
Abstract
The lichen Ramalina ecklonii (Spreng.) Mey. and Flot. was transplanted to 29 biomonitoring sites in the southeastern area of Córdoba, Argentina and tested for chlorophyll a, phaeophytin a, conjugated dienes concentration, malondialdehyde, soluble protein content and sulfur accumulation. The biomonitoring sites were determined according to (i) vehicular traffic levels, and (ii) industrial density, i.e. number and type of industries (small and medium) close to each of the sites. Each of the two groups were then broken down into three categories which provided a basis for performance analysis and quantification of the chemical parameters in the biomonitor. A pollution index (P.I.) was calculated based on the ratio of phaeophytin a to chlorophyll a and ratio of sulfur, malonaldehyde and conjugated dienes in transplanted specimens to sulfur, malonaldehyde and conjugated dienes in the freshly picked specimens. Significant differences were observed in sulfur content and P.I. in lichen samples that had been transplanted to sites with different vehicular traffic levels. At the same time, significant differences in the phaeophytin a concentration, phaeophytin a/chlorophyll a ratio and P.I. were observed at sites characterized by different levels of industrial density (all with low-to-medium traffic).
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Affiliation(s)
- C M González
- Cátedra de Química General, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba, Avda Vélez Sársfield 299. 5000, Córdoba, Argentina
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Alonso JC, López-Longo FJ, Lampreave JL, González CM, González M, Almoguera I, Carreño L. Different abdominal scintigraphy pattern in patients with ulcerative colitis, Crohn's disease and seronegative spondylarthropathies. Br J Rheumatol 1995; 34:946-50. [PMID: 7582701 DOI: 10.1093/rheumatology/34.10.946] [Citation(s) in RCA: 4] [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: 01/26/2023]
Abstract
The aim was to analyse the abdominal scintigraphy pattern in patients with seronegative spondylarthropathy (SSp), ulcerative colitis (UC) and Crohn's disease (CD). A total of 117 patients with defined histological lesions of inflammatory bowel disease (IBD) (68 UC and 49 CD), 32 patients with active SSp [European Spondylarthropathy Study Group (ESSG) 1991 criteria] without clinical evidence of IBD and 21 controls without IBD or SSp were studied. All patients with SSp and controls received similar doses of non-steroidal anti-inflammatory drugs. Abdominal scintigraphy images were obtained at 30 and 120 min after injection of 99m-technetium hexamethyl propylene amine oxime (99mTc-HMPAO)-labelled leucocytes. The 99mTc-HMPAO-labelled leucocyte scan was positive in 17 patients with SSp (53.1%), 45 patients with UC (66.1%) and 33 patients with CD (67.3%). Rectum and sigma involvement was more frequent in patients with UC (68.8%) than in patients with SSp (23.5%) or CD (33.3%) (P < 0.05) [odds ratios (OR): 7.1 and 4.4, respectively]. Terminal ileum involvement was more frequent in patients with CD (63.6%) than in patients with SSp (23.5%) or UC (8.8%) (P < 0.05) (OR: 5.6 and 17.9, respectively). The 99mTc-HMPAO-labelled leucocyte scan shows an increased uptake in patients with SSp without evidence of IBD. Perhaps these patients represent one end of the spectrum of IBD, but rectal and terminal ileum involvement were less frequent in patients with SSp than in patients with UC or CD.
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Affiliation(s)
- J C Alonso
- Department of Rheumatology, Hospital Universitario Gregorio Marañón, Universidad Complutense, Madrid, Spain
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López-Longo FJ, Fernández J, Monteagudo I, Rodríguez-Mahou M, Sánchez-Atrio AI, Pérez T, Escalona M, González CM, Lapointe N, Carreño L. [Clinical and serologic course of patients with mixed connective tissue disease]. Rev Clin Esp 1994; 194:682-8. [PMID: 7984796] [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: 01/28/2023]
Abstract
The so called mixed connective tissue disease (MCTD), continues to be a controversial entity, while some authors considered it a good characterized disease, others think that is an undifferentiated connective tissue disease. OBJECTIVE. To analyse the clinical and serological evolution of a group of patients diagnosed of MCTD, with particular consideration to the meaning of anti-nRNP and anti-Sm antibodies. METHOD. We have studied 20 patients diagnosed of MCTD and 112 with systemic lupus erythematosus (SLE). Anti-nRNP and anti-Sm antibodies were detected through counter immunoelectrophoresis, immunoblotting and ELISA. RESULTS. After an average time of evolution of 10 years, 70% (14/20) of the patients diagnosed of MCTD fulfill criteria for SLE (6 cases), scleroderma (6 cases) or polymyositis (2 cases). Anti-nRNP response is persistent, directed mainly against the 70 Kd and A-nRNP polypeptides and qualitatively higher in MCTD in SLE (absorbencies 2.64 vs 1.25. The immunoblotting test detected anti-Sm antibodies in 5 patients (25%) and ELISA test in 14 (70%). CONCLUSIONS. Clinical and serological evolution suggest that MCTD is an undifferentiated connective tissue disease. Anti-nRNP antibodies are characteristic, although anti-Sm antibodies can be detected with ELISA regardless whether on not patients fulfill SLE criteria.
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Affiliation(s)
- F J López-Longo
- Servicio de Reumatología, Hospital General Universitario Gregorio Marañón, Madrid
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Enríquez R, Palacios FO, González CM, Amoros FA, Cabezuelo JB, Hernández F. Skin vasculitis, hypokalemia and acute renal failure in rhabdomyolysis associated with cocaine. Nephron Clin Pract 1991; 59:336-7. [PMID: 1956505 DOI: 10.1159/000186582] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
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Casanova JM, Vives P, Hernanz JM, Cimadevilla JC, González CM. [Childhood benign chronic bullous dermatosis. Differential diagnosis with dermatitis herpetiformis and bullous pemphigoid]. An Esp Pediatr 1985; 22:37-42. [PMID: 3885812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We review the literature on benign chronic bullous dermatosis of childhood and the criterions for its diagnosis and differentiation from dermatitis herpetiformis and bullous pemphigoid. The diagnosis among these conditions should be based on immunofluorescence data. BCBDC shows linear IgA on the basal membrane zone. Its course is benign and there is not enteropathy. In dermatitis herpetiformis we find granular IgA and complement in the tips of dermal papillae. It is a chronic illness and the patients have a gluten-sensitive enteropathy. The bullous pemphigoid is a severe condition which needs corticosteroids for its control. Direct immunofluorescent studies reveal IgG and complement in a linear pattern in the membrane basal zone. It is associated with circulating antibasement membrane zone IgG.
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