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Start Over Author "Fraga, S." Publisher elsevier bv
53 results on '"Fraga, S."'

3. Bronquiectasias

Author

Villares, M. Alonso, primary, Peña, A. Ruiz, additional, Fraga, S. Sánchez, additional, and González, S. Sánchez, additional

Published
2022
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5. Association of neighbourhood disadvantage and individual socioeconomic position with all-cause mortality: a longitudinal multicohort analysis.

Author

Ribeiro, AI, Fraga, S, Severo, M, Kelly-Irving, M, Delpierre, C, Stringhini, S, Kivimaki, M, Joost, S, Guessous, I, Severi, G, Giles, G, Sacerdote, C, Vineis, P, Barros, H, LIFEPATH Consortium, Ribeiro, AI, Fraga, S, Severo, M, Kelly-Irving, M, Delpierre, C, Stringhini, S, Kivimaki, M, Joost, S, Guessous, I, Severi, G, Giles, G, Sacerdote, C, Vineis, P, Barros, H, and LIFEPATH Consortium

Abstract

BACKGROUND: Few studies have examined the interactions between individual socioeconomic position and neighbourhood deprivation and the findings so far are heterogeneous. Using a large sample of diverse cohorts, we investigated the interaction effect of neighbourhood socioeconomic deprivation and individual socioeconomic position, assessed using education, on mortality. METHODS: We did a longitudinal multicohort analysis that included six cohort studies participating in the European LIFEPATH consortium: the CoLaus (Lausanne, Switzerland), E3N (France), EPIC-Turin (Turin, Italy), EPIPorto (Porto, Portugal), Melbourne Collaborative Cohort Study (Melbourne, VIC, Australia), and Whitehall II (London, UK) cohorts. All participants with data on mortality, educational attainment, and neighbourhood deprivation were included in the present study. The data sources were the databases of each cohort study. Poisson regression was used to estimate the mortality rates and associations (relative risk, 95% CIs) with neighbourhood deprivation (Q1 being least deprived to Q5 being the most deprived). Baseline educational attainment was used as an indicator of individual socioeconomic position. Estimates were combined using pooled analysis and the relative excess risk due to the interaction was computed to identify additive interactions. FINDINGS: The cohorts comprised a total population of 168 801 individuals. The recruitment dates were 2003-06 for CoLaus, 1989-91 for E3N, 1992-98 for EPIC-Turin, 1999-2003 for EPIPorto, 1990-94 for MCCS, and 1991-94 for Whitehall II. We use baseline data only and mortality data obtained using record linkage. Age-adjusted mortality rates were higher among participants residing in more deprived neighbourhoods than those in the least deprived neighbourhoods (Q1 least deprived neighbourhoods, 369·7 per 100 000 person-years [95% CI 356·4-383·2] vs Q5-most deprived neighbourhoods 445·7 per 100 000 person-years [430·2-461·7]), but the magnitude of the associat

Published
2022

10. The toxic benthic dinoflagellate Prorocentrum maculosum Faust is a synonym of Prorocentrum hoffmannianum Faust

Author

Rodríguez, F. (Francisco), Riobó, P. (Pilar), Crespín, G.D., Daranas, A.H. (Antonio), De Vera, C.R., Norte, M., Fernández, J.J. (José), and Fraga, S. (Santiago)

Subjects
Okadaic acid, LSUrRNA, Benthic dinoflagellates, Canary Islands, Prorocentrum, Dinophysistoxin
Abstract

Three strains of the toxic benthic dinoflagellate Prorocentrum hoffmannianum were isolated in the Canary Islands (north-east Atlantic Ocean, Spain). The identity of the strains was determined by phylogenetic analyses of partial LSU rDNA (D1-D2 regions) but their morphology based on SEM images corresponded to P. maculosum. Their toxin profiles were analyzed by liquid chromatography and high resolution mass spectrometry analysis (LC–HRMS) on cell extracts and culture media. Okadaic acid and three analogs were detected in all strains. Rather, in culture media the detected compounds were variable among strains, two of them being okadaic acid analogs not found on cell extracts. As a result, the taxonomy of the species was revised and P. maculosum is proposed as a junior synonym of P. hoffmannianum whose description is emended.

Published
2018

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