35 research outputs found

    Risk profiles and one-year outcomes of patients with newly diagnosed atrial fibrillation in India: Insights from the GARFIELD-AF Registry.

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    BACKGROUND: The Global Anticoagulant Registry in the FIELD-Atrial Fibrillation (GARFIELD-AF) is an ongoing prospective noninterventional registry, which is providing important information on the baseline characteristics, treatment patterns, and 1-year outcomes in patients with newly diagnosed non-valvular atrial fibrillation (NVAF). This report describes data from Indian patients recruited in this registry. METHODS AND RESULTS: A total of 52,014 patients with newly diagnosed AF were enrolled globally; of these, 1388 patients were recruited from 26 sites within India (2012-2016). In India, the mean age was 65.8 years at diagnosis of NVAF. Hypertension was the most prevalent risk factor for AF, present in 68.5% of patients from India and in 76.3% of patients globally (P < 0.001). Diabetes and coronary artery disease (CAD) were prevalent in 36.2% and 28.1% of patients as compared with global prevalence of 22.2% and 21.6%, respectively (P < 0.001 for both). Antiplatelet therapy was the most common antithrombotic treatment in India. With increasing stroke risk, however, patients were more likely to receive oral anticoagulant therapy [mainly vitamin K antagonist (VKA)], but average international normalized ratio (INR) was lower among Indian patients [median INR value 1.6 (interquartile range {IQR}: 1.3-2.3) versus 2.3 (IQR 1.8-2.8) (P < 0.001)]. Compared with other countries, patients from India had markedly higher rates of all-cause mortality [7.68 per 100 person-years (95% confidence interval 6.32-9.35) vs 4.34 (4.16-4.53), P < 0.0001], while rates of stroke/systemic embolism and major bleeding were lower after 1 year of follow-up. CONCLUSION: Compared to previously published registries from India, the GARFIELD-AF registry describes clinical profiles and outcomes in Indian patients with AF of a different etiology. The registry data show that compared to the rest of the world, Indian AF patients are younger in age and have more diabetes and CAD. Patients with a higher stroke risk are more likely to receive anticoagulation therapy with VKA but are underdosed compared with the global average in the GARFIELD-AF. CLINICAL TRIAL REGISTRATION-URL: http://www.clinicaltrials.gov. Unique identifier: NCT01090362

    Anos potenciais de vida perdidos segundo causas, em Fortaleza (Brasil), 1978-80 Loss of potential years of life, according to cause of death in Fortaleza (Brazil) 1978-1980

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    Estudo realizado para determinar e analisar os anos potenciais de vida perdidos (APVP) das principais causas de Ăłbitos, segundo sexo e idade, em Fortaleza, em 1978-80. Os Ăłbitos foram distribuĂ­dos segundo causa, sexo e idade. A tĂ©cnica adotada para os APVP foi a sugerida por Romeder e McWhinnie, tendo sido definida a idade limite de vida potencial em 65 anos. Os resultados mostraram que o total de APVP foi 197.942,5, nos homens, e 137.545, nas mulheres, correspondendo a taxas de APVP de 119,82 por 1.000 homens e 73,06 por 1.000 mulheres, e que as violĂȘncias, com 41,15 por 1.000 homens e 8,46 por 1.000 mulheres, foram as maiores responsĂĄveis pelos APVP, nos dois sexos, arcando com 34,35% dos APVP no masculino e 11,57% no feminino. Em ordem de importĂąncia em APVP, as principais causas foram as violĂȘncias, as doenças infecciosas intestinais, as outras doenças do aparelho respiratĂłrio, as doenças do aparelho digestivo e o cĂąncer, nos homens, e as violĂȘncias, as doenças do aparelho respiratĂłrio, o cĂąncer, as doenças infecciosas intestinais e as doenças cerebrovasculares, nas mulheres. Foi ressaltada a importĂąncia da utilização da metodologia dos APVP para o planejamento em saĂșde, como instrumento de orientação Ă  hierarquização de prioridades.<br>The aim of this study was to determine and analyse the potential years of life lost (PYLL) of the principal causes of death, by sex and age, in Fortaleza, in 1978-80. Death certificates of the period 1978-80, were classified according to cause, sex and age. The technique adopted for PYLL was the one suggested by Romeder and McWhinnie, the age limit of potential life being established at 65. The results showed that the total of PYLL was 197,942.5 for males, and 137,545 for females, corresponding to rates of PYLL of 119.82 per 1,000 men and 73.06 per 1,000 women, and that violent deaths, with 41.15 per 1,000 men and 8.46 per 1,000 women, were the main contributory factor in PYLL in both sexes accounting for 34.35% of male and 11.57% of female PYLL. By order of importance in PYLL the principal causes were violence, infectious intestinal diseases, diseases of the respiratory system, and cancer, in males, and violence, diseases of the respiratory system, cancer, infectious intestinal diseases and cerebrovascular diseases, in females. The importance of the use of PYLL methodology for Health Planning, as a tool of orientation in the choice of priorities was stressed

    Equilibrium of Cu(II) and Ni(II) biosorption by marine alga Sargassum filipendula in a dynamic system: Competitiveness and selectivity

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    AbstractThe study focuses on the equilibrium of dynamic biosorption in single and binary systems containing Cu(II) and Ni(II) ions using Sargassum filipendula (a marine alga). The experiments were performed in fixed-bed columns with both single-component and bi-component metal solutions (using different molar concentrations). Experimental data were fitted with different equilibrium models such as Langmuir, Langmuir with inhibition, Jain and Snowyink and Langmuir–Freundlich equations. The biosorption of pure metal ions in solution presented adequate capacities both for Cu(II) and Ni(II). In binary solutions the preferential sorption of Cu(II) over Ni(II) was demonstrated by the displacement of Ni(II) (marked overshoot on the breakthrough curves)

    Chromium Biosorption Using The Residue Of Alginate Extraction From Sargassum Filipendula

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    The Brazilian brown seaweed Sargassum filipendula was treated for alginate extraction and the residue was used for removing Cr(VI) and Cr(III) from aqueous solutions. The seaweed was characterized in terms of alginate and residue yields. Alginate and residue contents were 17% and 39%, respectively. Kinetic experiments were carried out and different models were applied in order to elucidate the rate-controlling mechanism: pseudo-first order, pseudo-second order and intra-particle diffusion. The biosorption of Cr(VI) in residue is followed by the reduction of hexavalent to trivalent chromium. The application of Langmuir model to equilibrium data showed a superior maximum biosorption capacity (qmax) for total chromium (0.819mmolg-1) in comparison to trivalent chromium (0.635mmolg-1). The biosorption capacities obtained were close to the values found for the removal of chromium by different species of brown seaweeds. © 2013 Elsevier B.V.237362371Richard, F.C., Bourg, A.C.M., Aqueous geochemistry of chromium: a review (1991) Water Res., 25, pp. 807-816Suwalsky, M., Castro, R., Villena, F., Sotomayor, C.P., Cr(III) exerts stronger structural effects than Cr(VI) on the human erythrocyte membrane and molecular models (2008) J. Inorg. Biochem., 102, pp. 842-849Krishnani, K.K., Ayyappan, S., Heavy metals remediation of water using plants and lignocellulosic agrowastes (2006) Rev. Environ. Contam. Toxicol., 188, pp. 59-84IARC, Monographs on the evaluation of carcinogenic risks to humans: overall evaluation of carcinogenicity (1987) An updating of IARC Monographs., FranceCieslak-Golonka, M., Toxic and mutagenic effects of chromium(VI). A review (1995) Polyhedron, 15, pp. 3667-3689WHO, Guidelines for drinking-water quality Recommendations (2004)Mohan, D., Pittman, C.U., Activated carbons and low cost adsorbents for remediation of tri- and hexavalent chromium from water (2006) J. Hazard. Mater., 137, pp. 762-811Parga, J.R., Cocke, D.L., Valverde, V., Gomes, J.A.G., Kesmez, M., Moreno, H., Characterization of electrocoagulation for removal of chromium and arsenic (2005) Chem. Eng. Technol., 28, pp. 605-612Matis, K.A., Mavros, P., Recovery of metals by ion flotation from dilute aqueous solutions (1991) Sep. Purif. Rev., 20, pp. 1-48Kozlowski, C.A., Walkowiak, W., Removal of chromium(VI) from aqueous solutions by polymer inclusion membranes (2002) Water Res., 36, pp. 4870-4876Rengaraj, S., Joo, C.K., Kim, Y., Yi, J., Kinetics of removal of chromium from water and electronic process wastewater by ion exchange resins: 1200H, 1500H and IRN97H (2003) J. Hazard. Mater., 102, pp. 257-275Miretzky, P., Cirelli, A.F., Cr(VI) and Cr(III) removal from aqueous solution by raw and modified lignocellulosic materials: a review (2010) J. Hazard. Mater., 180, pp. 1-19Kratochvil, D., Pimentel, P., Volesky, B., Removal of trivalent and hexavalent chromium by seaweed biosorbent (1998) Environ. Sci. Technol., 32, pp. 2693-2698Yang, L., Chen, J.P., Biosorption of hexavalent chromium onto raw and chemically modified Sargassum sp (2008) Bioresour. Technol., 99, pp. 297-307Murphy, V., Hughes, H., McLoughlin, P., Comparative study of chromium biosorption by red, green and brown seaweed biomass (2008) Chemosphere, 70, pp. 1128-1134BermĂșdez, Y.G., Rico, I.L.R., Guibal, E., de Hoces, M.C., MartĂ­n-Lara, M.A., Biosorption of hexavalent chromium from aqueous solution by Sargassum muticum brown alga. Application of statistical design for process optimization (2012) Chem. Eng. J., 183, pp. 68-76Volesky, B., Biosorption of heavy metals, Boston (1990)Sharma, A., Gupta, M.N., Three phase partitioning of carbohydrate polymers : separation and purification of alginates (2002) Carbohydr. Polym., 48, pp. 391-395Nestle, N., Kimmich, R., Heavy metal uptake of alginate gels studied by NMR microscopy (1996) Colloids Surfaces A Physicochem. Eng. Asp., 115, pp. 141-147Veglio, F., Esposito, A., Reverberi, A.P., Copper adsorption on calcium alginate beads: equilibrium pH-related models (2002) Hydrometallurgy, 65, pp. 43-57Papageorgiou, S.K., Katsaros, F.K., Kouvelos, E.P., Nolan, J.W., Le Deit, H., Kanellopoulos, N.K., Heavy metal sorption by calcium alginate beads from Laminaria digitata (2006) J. Hazard. Mater., 137, pp. 1765-1772Davis, T.A., Volesky, B., Mucci, A., A review of the biochemistry of heavy metal biosorption by brown algae (2003) Water Res., 37, pp. 4311-4330Schenkman, R.P.F., Hypnea musciformis (Rhodophyta): ecological influence on growth (1989) J. Phycol., 25, pp. 192-196Rocha, S.C.S., Cavalcante, J.D.A., Silva, M.G.C., Pinho, C.G., Influence of the drying conditions of Sargassum sp. alga on the bioadsorption of hexavalent chromium (2006) Environ. Technol., 27, pp. 979-990Mchugh, D.J., (1987), Production, properties and uses of alginates, ItalyGomez, C.G., Lambrecht, M.V.P., Lozano, J.E., Rinaudo, M., Villar, M.A., Influence of the extraction-purification conditions on final properties of alginates obtained from brown algae (Macrocystis pyrifera) (2009) Int. J. Biol. Macromol., 44, pp. 365-371Figueira, M.M., Volesky, B., Ciminelli, V.S.T., Roddick, F.A., Biosorption of metals in brown seaweed biomass (2000) Water Res., 34, pp. 196-204Matheickal, J.T., Yu, Q., Biosorption of lead(II) and copper(II) from aqueous solutions by pre-treated biomass of Australian marine algae (1999) Bioresour. Technol., 69, pp. 223-229Chen, J.P., Yang, L., Chemical modification of Sargassum sp. for prevention of organic leaching and enhancement of uptake during metal biosorption (2005) Ind. Eng. Chem. Res., 44, pp. 9931-9942(2007), ASTM D1687-02, Standard Test Methods for Chromium in WaterLagergren, S., Zur theorie der sogenannten adsorption gelöster stoffe (1898) K. Sven. Vetenskapsakademiens Handl., 24, pp. 1-39Ho, Y., McKay, G., Pseudo-second order model for sorption processes (1999) Process Biochem., 34, pp. 451-465Weber, W.J., Morris, J.C., (1962), Advances in Water Pollution Research, New YorkBosinco, S., Guibal, E., Roussy, J., le Cloirec, P., Adsorption of hexavalent Chromium on Chitosan beads: sorption isotherms and kinetics (1998) Miner. Process. Extr. Metall. Rev., 19, pp. 277-291Percival, E.G.V., Mcdowell, R.H., (1967), Chemistry and Enzymology of Marine Algal Polysaccharides, LondonPerez, R., Kaas, R., Campello, F., Arbault, S., Barbaroux, O., (1992) La culture des algues marines dans le monde, , Institut français de recherchĂ© pour l'exploitation de la mer, FranceKleinĂŒbing, S.J., Vieira, R.S., Beppu, M.M., Guibal, E., da Silva, M.G.C., Characterization and evaluation of copper and nickel biosorption on acidic algae Sargassum filipendula (2010) Mater. Res., 13, pp. 541-550Sheng, P.X., Ting, Y.-P., Chen, J.P., Hong, L., Sorption of lead, copper, cadmium, zinc, and nickel by marine algal biomass: characterization of biosorptive capacity and investigation of mechanisms (2004) J. Colloid Interface Sci., 275, pp. 131-141Fourest, E., Volesky, B., Contribution of sulfonate groups and alginate to heavy metal biosorption by the dry biomass of Sargassum fluitans (1996) Environ. Sci. Technol., 30, pp. 277-282Coluthup, N.B., Daly, L.H., Wiberley, S.E., (1975) Introduction to Infrared and Raman Spectroscopy, third, New YorkPark, D., Lim, S.-R., Yun, Y.-S., Park, J.M., Reliable evidences that the removal mechanism of hexavalent chromium by natural biomaterials is adsorption-coupled reduction (2007) Chemosphere, 70, pp. 298-305Bosinco, S., Roussy, J., Guibal, E., Cloirec, P.L., Interaction mechanisms between hexavalent chromium and corncob (1996) Environ. Technol., 17, pp. 55-62Murphy, V., Tofail, S., Hughes, H., McLoughlin, P., A novel study of hexavalent chromium detoxification by selected seaweed species using SEM-EDX and XPS analysis (2009) Chem. Eng. J., 148, pp. 425-433Day, R.A., Underwood, A.L., (1974) Quantitative Analysis, , Fourth, New JerseyWang, X.S., Li, Z.Z., Sun, C., Removal of Cr(VI) from aqueous solutions by low-cost biosorbents: marine macroalgae and agricultural by-products (2008) J. Hazard. Mater., 153, pp. 1176-1184Baral, S.S., Das, N., Roy Chaudhury, G., Das, S.N., A preliminary study on the adsorptive removal of Cr(VI) using seaweed, Hydrilla verticillata (2009) J. Hazard. Mater., 171, pp. 358-369Malash, G.F., El-Khaiary, M.I., Piecewise linear regression: a statistical method for the analysis of experimental adsorption data by the intraparticle-diffusion models (2010) Chem. Eng. J., 163, pp. 256-263Cabatingan, L.K., Agapay, R.C., Rakels, J.L.L., Ottens, M., van der Wielen, L., Potential of biosorption for the recovery of chromate in industrial wastewaters (2001) Ind. Eng. Chem. Res., 40, pp. 2302-2309Aravindhan, R., Madhan, B., Rao, J.R., Nair, B.U., Ramasami, T., Bioaccumulation of chromium from tannery wastewater: an approach for chrome recovery and reuse (2004) Environ. Sci. Technol., 38, pp. 300-306Dittert, I.M., Vilar, V.J.P., Da Silva, E.A.B., De Souza, S.M.A.G.U., De Souza, A.A.U., Botelho, C.M.S., Adding value to marine macro-algae Laminaria digitata through its use in the separation and recovery of trivalent chromium ions from aqueous solution (2012) Chem. Eng. J., pp. 348-357Plaza CazĂłn, J., Bernardelli, C., Viera, M., Donati, E., Guibal, E., Zinc and cadmium biosorption by untreated and calcium-treated Macrocystis pyrifera in a batch system (2012) Bioresour. Technol., 116, pp. 195-203Prabhakaran, S.K., Vijayaraghavan, K., Balasubramanian, R., Removal of Cr(VI) Ions by spent tea and coffee dusts: reduction to Cr(III) and biosorption (2009) Ind. Eng. Chem. Res., 48, pp. 2113-2117Özer, A., Özer, D., Comparative study of the biosorption of Pb(II), Ni(II) and Cr(VI) ions onto S. cerevisiae: determination of biosorption heats (2003) J. Hazard. Mater., 100, pp. 219-229Dean, S., Tobin, J.M., Uptake of chromium cations and anions by milled peat, Resour. Conserv. Recycl. (1999), 27, pp. 151-156Gupta, V.K., Gupta, M., Sharma, S., Process development for the removal of lead and chromium from aqueous solutions using red mud an aluminium industry waste (2001) Water Res., 35, pp. 1125-1134Bernardo, G.-R.R., Rene, R.-M.J., Catalina, A.-D.L.T.M., Chromium (III) uptake by agro-waste biosorbents: chemical characterization, sorption-desorption studies, and mechanism (2009) J. Hazard. Mater., 170, pp. 845-854Parab, H., Joshi, S., Shenoy, N., Lali, A., Sarma, U.S., Sudersanan, M., Determination of kinetic and equilibrium parameters of the batch adsorption of Co(II), Cr(III) and Ni(II) onto coir pith (2006) Process Biochem., 41, pp. 609-615Li, Y.-S., Liu, C.-C., Chiou, C., Adsorption of Cr(III) from wastewater by wine processing waste sludge (2004) J. Colloid Interface Sci., 273, pp. 95-101Cui, H., Fu, M., Yu, S., Wang, M.K., Reduction and removal of Cr(VI) from aqueous solutions using modified byproducts of beer production (2011) J. Hazard. Mater., 186, pp. 1625-1631Sivalingam, P.M., Bio-deposited trace metals and mineral content studies of some tropical marine algae (1978) Bot. Mar., 21, pp. 327-330Siegel, B.Z., Siegel, S.M., The chemical composition of algal cell walls (1973) Crit. Rev. Microbiol., 3, pp. 1-26Liu, Y., Is the free energy change of adsorption correctly calculated? (2009) J. Chem. Eng. Data, 54, pp. 1981-1985Raji, C., Anirudhan, T.S., Batch Cr(VI) removal by polyacrylamide-grafted saw-dust: kinetics and thermodynamics (1998) Water Res., 32, pp. 3772-3780Malik, U.R., Hasany, S.M., Subhani, M.S., Sorptive potential of sunflower stem for Cr(III) ions from aqueous solutions and its kinetic and thermodynamic profile (2005) Talanta, 66, pp. 166-17
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