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1.
Crit Care ; 15(5): R227, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21943151

RESUMO

INTRODUCTION: Leptin (LEP) and its receptor (LEPR) participate in the immunological response during infection. LEP serum levels rise during sepsis. In patients with peritonitis, an insufficient elevation in serum LEP is associated with an increased risk of death. As gene variants of LEP and LEPR have been associated with diverse pathologic conditions, we explored the association of genetic polymorphisms of LEP or LEPR with death in patients with secondary peritonitis. METHODS: A case control study was undertaken. LEP Gene -2548G > A and the LEPR Gene 223A > G polymorphism were determined in 74 patients. The odds ratio of genotype and allele distribution in survival (control) versus death (case) among patients was calculated. Serum LEP, interleukin (IL)-6, tumour necrosis factor alpha, C-reactive protein (C-RP), IL-10 and IL-13 levels were analyzed in 34 patients. RESULTS: There were significant differences in genotype and allele distribution between survivors and non-survivors for -2548G > A and 223A > G polymorphisms. The presence of the mutant allele A, in -2548, had an odds ratio of 4.64 (95% CI 1.22, 17.67) with significance (P = 0.017) in the risk of death. The presence of mutant allele G, in 223, had an odds ratio of 3.57 (95% CI 1.06, 12.01) with significance in the risk of death (P = 0.033). The presence of allele A in the -2548 polymorphism was associated with differences in serum LEP (P = 0.013), and IL-10 (P = 0.0001). The presence of allele G in 223 polymorphism was likewise correlated with differences in serum LEP (P < 0001), C-RP (P = 0.033), and IL-10 (P = 0.043). CONCLUSIONS: The polymorphisms studied are associated with death in patients with peritonitis of non-appendicular origin. This association is stronger than many known risk-factors related to peritonitis severity, and is independent of body mass. The physiopathologic mechanism is possibly related to an insufficient increase in the elevation of serum LEP levels, and is unrelated to body mass.


Assuntos
Leptina/genética , Peritonite/genética , Peritonite/mortalidade , Polimorfismo Genético/genética , Receptores para Leptina/genética , Adulto , Idoso , Apendicite/complicações , Biomarcadores/sangue , Estudos de Casos e Controles , Feminino , Humanos , Leptina/sangue , Masculino , Pessoa de Meia-Idade , Peritonite/etiologia , Prognóstico , Estudos Prospectivos , Análise de Sobrevida
2.
Rev. invest. clín ; 49(5): 369-72, sept.-oct. 1997. tab
Artigo em Espanhol | LILACS | ID: lil-219690

RESUMO

Objetivo. Determinar el efecto de la reconversión del francés al inglés de los Annales de I' Institut Pasteur en sus índices bibliométricos. Marco de referencia. Las revistas del Instituto Pasteur cuentan con prestigio académico avalado por cien años de antigüedad y ocho premios Nobel de fisiología y medicina. Dichas revistas se encuentran capturadas por el ISI lo que permite analizar sus cambios bibliométricos. Diseño. De 1974 a 1992 se estudió, mediante análisis de regresión, la asociación entre porcentaje de artículos en inglés y : a) su factor de impacto; b) el lugar ocupado entre las revistas dew igual temática. Se calcularon los coeficientes de determinación (r²) de ambas regresiones. resultados. El r² global del porcentaje de artículos en inglés y el factor de impacto fue de impacto fue de 0.108; y los coeficientes de porcentaje de inglés y ubicación entre las revistas de igual temática fueron 0.178, 0.045 y 0.122 para microbiología, inmunología y virología respectivamente. Conclusión. la reconversión no modificó el factor de impacto de los Annales de I' Institut Pasteur


Assuntos
Academias e Institutos , Bibliometria , Serviços de Informação , Idioma , Publicação Periódica/estatística & dados numéricos , França
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