31 research outputs found

    Effects of dietary barley on rainbow trout exposed to an acute stress challenge

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    Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited.[EN] The present study evaluates the effect of dietary barley, based on its potential stress-relieving properties, on rainbow trout under acute stress challenge (hypoxia and crowding) and their recovery. Diets were formulated containing increasing barley concentrations (0, 4, 8, 16, 32%). Cortisol on plasma and fin, glucose and lactate plasma levels and malondialdehyde (MDA) in muscle were determined under normoxia before the stress test (basal levels), 30 min after the acute stress challenge and also during normoxia recovery (6 and 12 h after the stress). Results showed that at basal levels the inclusion of barley had no influence on cortisol, glucose nor on lactate values. After 30 min from the stress challenge, there was a significant increase in cortisol, glucose and lactate concentration in fish of all groups. Plasma cortisol showed the lowest levels in fish fed with diets at a medium (8%) of barley concentration and returned to basal levels 6 h after the stress stimulus with no differences between diets. Glucose values showed a less clear tendency 30 min after the stress challenge with lower levels in the control group, fish fed with 8% and 32% of barley in the diets and returned to basal levels in almost all the groups only 12 h after the stress challenge. Lactate showed the same trend as with glucose after the stress challenge but it returned to basal levels in 6 h. Interestingly, there was a significant decrease of lipid oxidation (MDA) in muscle soon after the stress test of fish fed with the highest barley levels. The present results suggest a potential positive effect of dietary barley on trout stress response.This work has been co-funded with FEDER and INIA funds. Julia Pinedo has been granted with the FPI-INIA grant number 21 (call 2012, BOE-2012-13337).Pinedo-Gil, J.; MartĂ­n-Diana, AB.; Bertotto, D.; Sanz-Calvo, M.; Jover Cerda, M.; Tomas-Vidal, A. (2019). Effects of dietary barley on rainbow trout exposed to an acute stress challenge. Aquaculture. 501:32-38. https://doi.org/10.1016/j.aquaculture.2018.10.070S323850

    Enhancement of quality of rainbow trout (Oncorhynchus mykiss) flesh incorporating barley on diet without negative effect on rearing parameters

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    [EN] Barley concentrations ranging from 0 to 32% (0B, 40B, 80B, 160B, and 319B) were incorporated into rainbow trout, Oncorhynchus mykiss (Walbaum) diets. The experiment started with an initial average fish weight of 127.72 +/- 5.65 g and finished when they reached commercial weight (final weight between 312 and 330 g) after 84 days. The inclusion of barley in the diets did not show a significant effect on growth and biometric parameters, fat and carbohydrate digestibilities; however, protein digestibility decreased significantly with the incorporation of barley on diets. Glucose levels increased significantly with barley concentration in the diet, and lactate and cortisol levels were also significantly affected after a stress period regardless of the diet. Meat quality was influenced as well by barley concentration. Lower water activity values and an enhancement in textural and color properties were observed in fish fed with the diet containing the highest barley concentration. Trout fed feed with higher concentrations of barley (160B) showed lower lipid oxidation levels than those fed with lower concentrations (control and 40B). The sensory panel found that fish fed with diets higher than 8% in barley content (80B) exhibited a brighter red color in the gills and a better texture; also, meat color became redder with a higher barley inclusion (160B and 319B), being all these sensory parameters correlated with fish freshness. Thus, results indicate that barley can be substituted for wheat fraction without any detrimental effect on production efficiency and enhancing fish quality.This work has been co-funded with FEDER and INIA funds. The authors thanks Dr. Francisco Ciudad Bautista for providing barley variety obtained in ITACyL, IRTA, EEDF-CSIC, ITAP, and INIA (1FD97-0792 and RTA2006-00020-C04). Julia Pinedo has been granted with the FPI-INIA grant number 21 (call 2012, BOE-2012-13337).Pinedo-Gil, J.; Tomas-Vidal, A.; LarrĂĄn-GarcĂ­a, AM.; Tomas-Almenar, C.; Jover Cerda, M.; Sanz-Calvo, M.; MartĂ­n-Diana, A. (2017). Enhancement of quality of rainbow trout (Oncorhynchus mykiss) flesh incorporating barley on diet without negative effect on rearing parameters. Aquaculture International. 25(3):1005-1023. https://doi.org/10.1007/s10499-016-0091-010051023253A.O.A.C., Association of Official Analytical Chemists (1990) Official methods of analysis, 15th edn. Association of Official Analytical Chemists, Arlington 1298 ppAi Q, Mai K, Zhang L, Tan B, Zhang W, Xu W, Li H (2007) Effects of dietary ÎČ-1,3- glucan on innate immune response on large yellow croaker, Pseudosciaena crocea. Fish Shellfish Immun 22:394–402APROMAR 2014 La acuicultura en España 2013. Report by the Spanish Association of marine Aquaculture (APROMAR) and the Spanish Association of Freshwater Aquaculture (ESCUA). Available at: http://www.apromar.es/content/la-acuicultura-en-españa-2014Asghari M, Shabanpour B, Pakravan S (2014) Evaluation of some qualitative variations in frozen fillets of beluga (Huso huso) fed by different carbohydrate to lipid ratios. J Food Sci Tech 51(3):430–439Atkinson JL, Hilton JW, Slinger SJ (1984) Evaluation of acid-insoluble ash as an indicator of feed digestibility in rainbow trout (Salmo gairdneri). Can J Fish Aquat Sci 41:1384–1386Caballero MJ, Obach A, Rosenlund G, Montero D, Gisvold M, Izquierdo MS (2002) Impact of different dietary lipid sources on growth, lipid digestibility, tissue fatty acid composition and histology of rainbow trout, Oncorhynchus mykiss. Aquaculture 214:253–271Casas C, Martinez O, Guillen MD, Pin C, Salmeron J (2006) Textural properties of raw Atlantic salmon (Salmo salar) at three points along the fillet, determined by different methods. Food Control 17:511–515Chang C-F, Su M-S, Chen H-Y, Liao I-C (2003) Dietary ÎČ-1,3-glucan effectively improves immunity and survival of Penaeus monodon challenged with white spot syndrome virus. Fish Shellfish Immun 15:297–310Cheng ZJ, Hardy RW (2002) Effect of microbial phytase on apparent nutrient digestibility of barley, canola meal, wheat and wheat middlings, measured in vivo using rainbow trout (Oncorhynchus mykiss). Aquac Nutr 8:271–277Cheng ZJ, Hardy RW (2003) Effects of extrusion processing of feed ingredients on apparent digestibility coefficients of nutrients for rainbow trout (Oncorhynchus mykiss). Aquac Nutr 9:77–83Cho CY, Slinger SJ, Bayley HS (1982) Bioenergetics of salmonid fishes: energy intake, expenditure and productivity. Comp Biochem Physiol 73B:25–41Couto A, Peres H, Oliva-Teles A, Enes P (2016) Screening of nutrient digestibility, glycaemic response and gust morphology alterations in gilthead seabream (Sparus aurata) fed whole cereal meals. Aquaculture 450:31–37Dalmo RA, BĂžgwald J (2008) Β-Glucans as conductors of immune symplhonies. Review. Fish Shellfish Immun 25:384–396Flores-Quintana C (2002) Respuestas neuroendocrinas al estrĂ©s en peces teleĂłsteos. Rev ictiol 10(1/2):57–78GarcĂ­a-Riera MP, Hemre G-I (1996) Effect of adaptation to three different levels of dietary carbohydrates on the incorporation of 14C-glucose in several organs of Atlantic halibut (Hippoglosus hippoglossus). Aquac Res 27:565–571Gatlin DM, Barrows F, Brown P, Dabrowski K, Gaylord TG, Hardy RW, Herman E, Hu G, Krogdahl Å, Nelson R, Overturf K, Rust M, Sealey W, Skonberg D, Souza EJ, Stone D, Wilson R, Wurtele E (2007) Expanding the utilization of sustainable plant products in aquafeeds: a review. Aquac Res 38:551–579Gaylord TG, Barrows FT, Rawles SD, Liu K, Bregitzer P, Hang A, Obert DE, Morris C (2009) Apparent digestibility of nutrients and energy in extruded diets from cultivars of barley and wheat selected for nutritional quality in rainbow trout Oncorhynchus mykiss. Aquac Nutr 15:306–312Ghaedi G, Keyvanshokooh S, Azarm HM, Akhlaghi M (2015) Effects of dietary ÎČ-glucan on maternal immunity and fry quality of rainbow trout (Oncorhynchus mykiss). Aquaculture 441:78–83Grisdale-Helland B, Helland SJ (1997) Replacemente of protein by fat and carbohydrate in diets for Atlantic salmon (Salmo salar) at the end of the freshwater stage. Aquaculture 152:167–180Gu M, Ma H, Mai K, Zhang W, Bai N, Wang X (2011) Effects of dietary ÎČ-glucan, mannan oligosaccharide and their combinations on growth performance, immunity and resistance against Vibrio splendidus of sea cucumber, Apostichopus japonicus. Fish Shellfish Immun 31:303–309Hai NV, Fotedar R (2009) Comparison of the effects of the prebiotics (Bio-MosÂź and ÎČ-1,3-D-glucan) and the customized probiotics (Pseudomonas synxantha and P. aeruginosa) on the culture of juvenile western king prawns (Penaeus latisulcatus kishinouye, 1896). Aquaculture 289:310–316Heidarieh M, Mivaghefi AR, Akbari A, Sheikhzadeh N, Kamyabi-Moghaddam Z, Askari H, Shahbazfar AA (2012) Evaluation of Hilysesℱ, fermented Saccharomyces cerevisiae, on rainbow trout (Oncorhynchus mykiss) growth performance, enzymatic activities and gastrointestinal structure. Aquac Nutr 19:343–348. doi: 10.1111/j.1365-2095.2012.00973.xHemre G-I (1992) Studies on carbohydrate nutrition in Cod (Gadus morhua). Dr. scientiarum Thesis. Institute of Nutrition, University of Bergen, NorwayHemre G-I, Krogdahl Å (1996) The effect of handling and fish size on the secondary changes in carbohydrate metabolism in Atlantic salmon (Salmo salar). Aquac Nutr 2:249–252Hemre G-I, Mommsen TP, Krogdahl Å (2002) Carbohydrates in fish nutrition: effects on growth, glucose metabolism and hepatic enzymes. Aquac Nutr 8:175–194Hixson SM (2014) Fish nutrition and current issues in aquaculture: the balance in providing safe and nutritious seafood, in an environmentally sustainable manner. J Aquac Res Dev 5:234. doi: 10.4172/2155-9546.1000234ISO 8586-1:2001 (2001) Sensory analysis—general guidance for the selection, training and monitoring of assessors—part 1: selected assessors (International Organization for Standardization)ISO 8586-2: 2008 (2008) Sensory analysis—general guidance for the selection, training and monitoring of assessors—part 2: expert sensory assessors (International Organization for Standardization)ISO 8589: 2007 (2007) Sensory analysis—general guidance for the design of test rooms (International Organization for Standardization)Jeney G, Galeotti M, Volpatti D, Anderson DP (1997) Prevention of stress in rainbow trout (Oncorhynchus mykiss) fed diets containing different doses of glucan. Aquaculture 154:1–15Kaplan LA, Pesce AJ (1984) Clinical chemistry: theory, analysis, and correlation. Mosby, St. Louis, pp 1032–1036Krogdahl Å, Sundby A, Olli JJ (2004) Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) digest and metabolize nutrients differently. Effects of water salinity and dietary starch level. Aquaculture 229:335–360Krogdahl Å, Hemre GI, Mommsen TP (2005) Carbohydrates in fish nutrition: digestion and absorption in postlarval stages. Aquac Nutr 11:103–122Kumar V, Sinha AK, Makkar HPS, De Boeck G, Becker K (2012) Phytate and phytase in fish nutrition. Review article. J Anim Physiol An N 96:335–364Lakshmanan PT (2000) Fish spoilage and quality assessment. In: Lyre TSG, Kandoran MK, Thomas M, Mathew PT (eds) Quality assurance in seafood processing. Society Fisher Techno (India), Cochin, pp 26–40Lazaridou A, Biliaderis CG (2007) Molecular aspects of cereal ÎČ-glucan functionality: physical properties, technological applications and physiological effects. J Cereal Sci 46:101–118Lin S, Pan Y, Luo L, Luo L (2011) Effects of dietary ÎČ-1,3-glucan, chitosan or raffinose on the growth, innate immunity and resistance of loi (Cyprinus carpio koi). Fish Shellfish Immun 31:788–794Lokesh J, Fernandes JMO, Korsnes K, Bergh Ø, Brinchmann MF (2012) Transcriptional regulation of cytokines in the intestine of Atlantic cod fed yeast derived mannan oligosaccharide or ÎČ-glucan and challenged with Vibrio anguillarum. Fish Shellfish Immun 33:626–631MAGRAMA. Ministerio de Agricultura, AlimentaciĂłn y Medio Ambiente (2015) Gobierno de España. Available at: http://www.mapama.gob.es/es/pesca/temas/acuicultura/produccion-de-acuicultura/default.aspxMartinsdĂłttir E, SveinsdĂłttir K, Luten J, Schelvis-Smit R, Hyldig G (2001) La evaluaciĂłn sensorial de la frescura del pescado. Manual de referencia para el sector pesquero. Icelandic Fisheries Laboratories. Available at: QIM Eurofish. URL http://qim-eurofish.comMeena DK, Das P, Kumar S, Mandal SC, Prusty AK, Singh SK, Akhtar MS, Behera BK, Kumar K, Pal AK, Mukherjee SC (2013) Beta-glucan: an ideal immunostimulant in aquaculture. Fish Physiol Biochem 39:431–457Mommsen TP, Vijayan MM, Moon TW (1999) Cortisol in teleosts: dynamics, mechanisms of action and metabolic regulation. Rev Fish Biol Fisher 9:211–268Morken T, Kraugerud OF, Barrows FT, SĂžrensen M, Storebakken T, Øverland M (2011) Sodium diformate and extrusion temperature affect nutrient digestibility and physical quality of diets with fish meal and barley protein concentrate for rainbow trout (Oncorhynchus mykiss). Aquaculture 317:138–145Ortiz J, Lemus-Mondaca R, Vega-GĂĄlvez A, Ah-hen K, Puente-DĂ­az L, Zura-Bravo L, Aubourg S (2013) Influence of air-drying temperature on drying kinetics, colour, firmness and biochemical characteristics of Atlantic salmon (Salmo salar L.) fillets. Food Chem 139:162–169Overturf K, Raboy V, Cheng ZJ, Hardy RW (2003) Mineral availability from barley low phytic acid grains in rainbow trout (Oncorhynchus mykiss) diets. Aquac Nutr 9:239–246Popelka M, Marcinčák S, Maskal’ovĂĄ I, GuothovĂĄ L, ČertĂ­k M (2014) Comparison of the chemical composition and nutritional values of fresh and frozen rainbow trout. Slov Vet Res 51(2):73–80Pratoomyot J, Bendiksen EÅ, Bell JG, Tocher DR (2010) Effects of increasing replacement of dietary fishmeal with plant protein sources on growth performance and body lipid composition of Atlantic salmon (Salmo salar L.). Aquaculture 305:124–132Sealey WM, Barrows FT, Hang A, Johansen KA, Overturf K, LaPatra SE, Hardy RW (2008) Evaluation of the ability of barley genotypes containing different amounts of ÎČ-glucan to alter growth and disease resistance of rainbow trout Oncorhynchus mykiss. Anim Feed Sci Tech 141:115–128Skrede G, Storebakken T, Skrede A, SahlstrĂžm S, SĂžrensen M, Shearer KD, Slinde E (2002) Lactic acid fermentation of wheat and barley whole meal flours improves digestibility of nutrients and energy in Atlantic salmon (Salmo salar L.) diets. Aquaculture 210:305–321Stone DAJ (2003) Dietary carbohydrate utilization by fish. Rev Fish Sci 11(4):337–369Storebakken T, Shearer KD, Refstie S, Lagocki S, McCool J (1998) Interactions between salinity, dietary carbohydrate source and carbohydrate concentration on the digestibility of macronutrients and energy in rainbow trout (Oncorhynchus mykiss). Aquaculture 163:347–359Thomas L (Hrsg.) (1992) Labor und Diagnose, 4. Auflage. Marburg; Die MedizinischeVerlagsgesellschaftValente LMP, Rema P, Ferraro V, Pintado M, Sousa-Pinto I, Cunha LM, Oliveira MB, AraĂșjo M (2015) Iodine enrichment of rainbow trout flesh by dietary supplementation with the red seaweed Gracilaria vermiculophylla. Aquaculture 446:132–139Vyncke W (1975) Evaluation of the direct thiobarbituric acid extraction method for determining oxidative rancidity in mackerel (Scomber scombrus L.). Fette, Seifen, Anstrichmittel 77(6):239–240Walton MJ (1986) Metabolic effects of feeding a high protein/low carbohydrate diet as compared to a low protein/high carbohydrate diet in rainbow trout (Salmo gairdneri). Fish Physiol Biochem 1(1):7–15Xu Y, Liu Y, Zhang C, Li X, Yi S, Li J (2015) Physicochemical responses and quality changes of turbot (Psetta maxima) during refrigerated storage. Int J Food Prop. doi: 10.1080/1094.2912.2015.1022260. In pressYildiz M (2004) The study of fillet quality and the growth performance of rainbow trout (Oncorhynchus mykiss) fed with diets containing different amounts of vitamin E. Turk J Fish Aquat Sc 4:81–8

    Variation in antiosteoporotic drug prescribing and spending across Spain. A population-based ecological cross-sectional study

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    Introduction: Evidence has shown that utilization of antiosteoporotic medications does not correspond with risk, and studies on other therapies have shown that adequacy of pharmaceutical prescribing might vary between regions. Nevertheless, very few studies have addressed the variability in osteoporotic drug consumption. We aimed to describe variations in pharmaceutical utilization and spending on osteoporotic drugs between Health Areas (HA) in Spain. Methods: Population-based cross-sectional ecological study of expenditure and utilization of the five therapeutic groups marketed for osteoporosis treatment in Spain in 2009. Small area variation analysis (SAVA) methods were used. The units of analysis were the 168 HA of 13 Spanish regions, including 7.2 million women aged 50 years and older. The main outcomes were the defined daily dose (DDD) per 1000 inhabitants and day (DDD/1000/Day) dispensed according to the pharmaceutical claims reimbursed, and the expenditure on antiosteoporotics at retail price per woman =50 years old and per year. Results: The average osteoporosis drug consumption was 116.8 DDD/1000W/Day, ranging from 78.5 to 158.7 DDD/1000W/Day between the HAs in the 5th and 95th percentiles. Seventy-five percent of the antiosteoporotics consumed was bisphosphonates, followed by raloxifene, strontium ranelate, calcitonins, and parathyroid hormones including teriparatide. Regarding variability by therapeutic groups, biphosphonates showed the lowest variation, while calcitonins and parathyroid hormones showed the highest variation. The annual expenditure on antiosteoporotics was €426.5 million, translating into an expenditure of €59.2 for each woman =50 years old and varying between €38.1 and €83.3 between HAs in the 5th and 95th percentiles. Biphosphonates, despite accounting for 79% of utilization, only represented 63% of total expenditure, while parathyroid hormones with only 1.6% of utilization accounted for 15% of the pharmaceutical spending. Conclusion: This study highlights a marked geographical variation in the prescription of antiosteoporotics, being more pronounced in the case of costly drugs such as parathyroid hormones. The differences in rates of prescribing explained almost all of the variance in drug spending, suggesting that the difference in prescription volume between territories, and not the price of the drugs, is the main source of variation in this setting. Data on geographical variation of prescription can help guide policy proposals for targeting areas with inadequate antiosteoporotic drug use

    Deep-sequencing reveals broad subtype-specific HCV resistance mutations associated with treatment failure

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    A percentage of hepatitis C virus (HCV)-infected patients fail direct acting antiviral (DAA)-based treatment regimens, often because of drug resistance-associated substitutions (RAS). The aim of this study was to characterize the resistance profile of a large cohort of patients failing DAA-based treatments, and investigate the relationship between HCV subtype and failure, as an aid to optimizing management of these patients. A new, standardized HCV-RAS testing protocol based on deep sequencing was designed and applied to 220 previously subtyped samples from patients failing DAA treatment, collected in 39 Spanish hospitals. The majority had received DAA-based interferon (IFN) a-free regimens; 79% had failed sofosbuvir-containing therapy. Genomic regions encoding the nonstructural protein (NS) 3, NS5A, and NS5B (DAA target regions) were analyzed using subtype-specific primers. Viral subtype distribution was as follows: genotype (G) 1, 62.7%; G3a, 21.4%; G4d, 12.3%; G2, 1.8%; and mixed infections 1.8%. Overall, 88.6% of patients carried at least 1 RAS, and 19% carried RAS at frequencies below 20% in the mutant spectrum. There were no differences in RAS selection between treatments with and without ribavirin. Regardless of the treatment received, each HCV subtype showed specific types of RAS. Of note, no RAS were detected in the target proteins of 18.6% of patients failing treatment, and 30.4% of patients had RAS in proteins that were not targets of the inhibitors they received. HCV patients failing DAA therapy showed a high diversity of RAS. Ribavirin use did not influence the type or number of RAS at failure. The subtype-specific pattern of RAS emergence underscores the importance of accurate HCV subtyping. The frequency of “extra-target” RAS suggests the need for RAS screening in all three DAA target regions

    El derecho del trabajo y de la seguridad social en España en 2014

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    Este documento intenta reflejar algunos de los principales cambios y novedades del ordenamiento laboral español en 2014, levantando acta de cĂłmo la mutabilidad de nuestro Derecho del Trabajo es imparable. Este informe, consciente de ello, ofrece una selecciĂłn de elementos esenciales, a juicio de sus autores, especialistas en cada una de las materias, encuadrados en la SecciĂłn Juvenil de la AsociaciĂłn Española de Derecho del Trabajo y de la Seguridad Social. En Ă©l, conforme a la organizaciĂłn de dicha SecciĂłn en grupos de trabajo, se abordan las novedades mĂĄs relevantes en materia de derechos fundamentales inespecĂ­ficos, contrataciĂłn laboral, vicisitudes del contrato de trabajo, Derecho colectivo, conciliaciĂłn y corresponsabilidad, protecciĂłn social y prevenciĂłn de riesgos laborales. This paper tries to show some of the many changes and novelties in Spanish Labour Law during 2014, drawing up a record of the unstoppable character of our Labour legal system. This report offers a selection of essential elements, according to its authors, all of them specialists in each one of the subjects, being part of the Young Scholars’ Section of the Spanish Association for Labour and Social Security Law. According to the organization of the said Section in working groups, we can find novelties concerning unspecific fundamental rights, work contracts, the life of the work contract and collective Labour Law, work-life balance and co responsibility, social protection and occupational risk prevention

    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

    Dynamic Tensile Stress-Compressive Stress Behavior of Thermoplastic Matrix Composite Materials Reinforced with Continuous Fiber for Automotive Damping and Anti-Vibration Structural Elements

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    Continuous Fibers-Reinforced Thermoplastic Composites (CFRTP) are presented as light materials, capable of offering a short production time with the possibility of being recycled. These properties make them ideal for automotive applications, aiming to reduce the consumption and emission of polluting gases. This article analyzed the dynamic tensile stress-compressive stress behavior of CFRTP in structural elements of the car with anti-vibration and damping functions. The data available in the literature on the reliable and usual compliance of the properties required for CFRTP, to be applied in the automotive structural elements, is scarce and insufficient. In order to analyze whether CFRTP feeds the demanding requirements of car manufacturers and if they provide advantages over the metal materials currently used, this article developed a method of reliable verification of their dynamic tensile and compression behavior. The methodology developed could be used as a guide to characterizing any combination of vulcanized rubber adhesive joints with CFRTP, regardless of the materials and additives used. The results obtained showed that there exists CFRTP that fits the requirements of the car manufacturers for this type of component and also offers dynamic advantages over the materials currently used as anti-vibration elements

    Dynamic Tensile Stress-Compressive Stress Behavior of Thermoplastic Matrix Composite Materials Reinforced with Continuous Fiber for Automotive Damping and Anti-Vibration Structural Elements

    No full text
    Continuous Fibers-Reinforced Thermoplastic Composites (CFRTP) are presented as light materials, capable of offering a short production time with the possibility of being recycled. These properties make them ideal for automotive applications, aiming to reduce the consumption and emission of polluting gases. This article analyzed the dynamic tensile stress-compressive stress behavior of CFRTP in structural elements of the car with anti-vibration and damping functions. The data available in the literature on the reliable and usual compliance of the properties required for CFRTP, to be applied in the automotive structural elements, is scarce and insufficient. In order to analyze whether CFRTP feeds the demanding requirements of car manufacturers and if they provide advantages over the metal materials currently used, this article developed a method of reliable verification of their dynamic tensile and compression behavior. The methodology developed could be used as a guide to characterizing any combination of vulcanized rubber adhesive joints with CFRTP, regardless of the materials and additives used. The results obtained showed that there exists CFRTP that fits the requirements of the car manufacturers for this type of component and also offers dynamic advantages over the materials currently used as anti-vibration elements
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