S. Ambroise, sur le psaume 118.

Au commt on a ajouté des vers sur Jonas, etc.

Genotype 3 is associated with accelerated fibrosis progression in chronic hepatitis C.

BACKGROUND/AIMS: While several risk factors for the histological progression of chronic hepatitis C have been identified, the contribution of HCV genotypes to liver fibrosis evolution remains controversial. The aim of this study was to assess independent predictors for fibrosis progression. METHODS: We identified 1189 patients from the Swiss Hepatitis C Cohort database with at least one biopsy prior to antiviral treatment and assessable date of infection. Stage-constant fibrosis progression rate was assessed using the ratio of fibrosis Metavir score to duration of infection. Stage-specific fibrosis progression rates were obtained using a Markov model. Risk factors were assessed by univariate and multivariate regression models. RESULTS: Independent risk factors for accelerated stage-constant fibrosis progression (>0.083 fibrosis units/year) included male sex (OR=1.60, [95% CI 1.21-2.12], P<0.001), age at infection (OR=1.08, [1.06-1.09], P<0.001), histological activity (OR=2.03, [1.54-2.68], P<0.001) and genotype 3 (OR=1.89, [1.37-2.61], P<0.001). Slower progression rates were observed in patients infected by blood transfusion (P=0.02) and invasive procedures or needle stick (P=0.03), compared to those infected by intravenous drug use. Maximum likelihood estimates (95% CI) of stage-specific progression rates (fibrosis units/year) for genotype 3 versus the other genotypes were: F0-->F1: 0.126 (0.106-0.145) versus 0.091 (0.083-0.100), F1-->F2: 0.099 (0.080-0.117) versus 0.065 (0.058-0.073), F2-->F3: 0.077 (0.058-0.096) versus 0.068 (0.057-0.080) and F3-->F4: 0.171 (0.106-0.236) versus 0.112 (0.083-0.142, overall P<0.001). CONCLUSIONS: This study shows a significant association of genotype 3 with accelerated fibrosis using both stage-constant and stage-specific estimates of fibrosis progression rates. This observation may have important consequences for the management of patients infected with this genotype.

Unconjugated TAT carrier peptide protects against excitotoxicity.

We report in this article for the first time the neuroprotective effects of unconjugated TAT carrier peptide against a mild excitotoxic stimulus both in vitro and in vivo. In view of the widespread use of TAT peptides to deliver neuroprotectants into cells, it is important to know the effects of the carrier itself. Unconjugated TAT carrier protects dissociated cortical neurons against NMDA but not against kainate, suggesting that TAT peptides may interfere with NMDA signaling. Furthermore, a retro-inverso form of the carrier peptide caused a reduction in lesion volume (by about 50%) in a rat neonatal cerebral ischemia model. Thus, even though TAT is designed merely as a carrier, its own pharmacological activity will need to be considered in the analysis of TAT-linked neuroprotectant peptides.

Physiologie du cocu / par un vieux célibataire [Callixte-Zénon Allec]

Référence bibliographique : Lhéritier, 46

Physiologie du théâtre / par un journaliste [Louis Couailhac]... ; vignettes de MM. Henry Émy et Birouste

Collection : [Physiologie Laisné-Aubert]

Parada cardiorrespiratória na unidade de terapia intensiva: análise das ocorrências iatrogênicas durante o atendimento

Trata-se de um estudo exploratório-descritivo que utilizou a Técnica do Incidente Crítico para obtenção e análise dos dados. Foram entrevistados 103 profissionais de enfermagem de duas UTIs gerais de um hospital do Estado de São Paulo, os quais forneceram relatos de situações de PCR . Do total de 126 situações obtiveram-se: falha na realização de procedimento técnico (58,6%); problemas relacionados a recursos materiais e equipamentos (31,2%) e falta de coordenação das atividades (8,6%). Quanto as conseqüências encontrou-se o óbito (70%) e a sobrevida imediata (30%) dos pacientes. Os resultados apontam a necessidade de investimentos na capacitação dos profissionais da UTI, bem como a importância do provimento adequado de materiais e equipamentos, com vistas a minimizar as ocorrências iatrogênicas no decorrer do atendimento.