Search results for "sang"

Rôle des antigènes tissulaires de groupes sanguins humains A, B, H et Lewis dans l'évolution des Norovirus GII.4

2011

Noroviruses are one of the leading causes of gastroenteritis worldwide. Since 2002 successive GII.4 variants have circulated in the population before being replaced every 2-3 years, which raises questions about the role of their histo-blood group antigen (HBGAs) receptors in their evolution. We analyzed the interaction between representative GII.4 variants and HBGAs and determined the role of selected amino acids (aa) in the binding profiles. By mutagenesis, we showed that there was a strict structural requirement for the aa directly implicated in HBGA bindings. The ablation of the threonine 395 residue, an epidemiological feature of the post 2002 variants, allowed to gain the capacity to b…

Résistances aux herbicides : les estivales en force !

2015

Contexte - Des cas de moindre efficacité de désherbage à base d’herbicides inhibiteurs de l’ALS ont été signalés en cultures de printemps. Des tests ont été réalisés pour savoir s’il s’agit de résistances et, si oui, dues à quel mécanisme. PSD sur maïs - Cinq populations de graminées estivales (deux de panic pied-de-coq, une de sétaire verte, deux de digitaire sanguine) ont été prélevées dans des parcelles de maïs où le désherbage n’avait pas donné satisfaction. Des plantes résistantes ont été identifiées dans toutes ces populations. Le mécanisme a été identifié. Il s’agit dans tous les cas de RNLC, résistance non liée à la cible. Ambroisie - Une dizaine de populations d’ambroisie à feuille…

Approche de la Signification de potentiel d'oxydo-réduction du sang. Analyse des données

1985

International audience

Le débat entre William Harvey et Rlolan fils autour de la circulation sanguine : guerre des mots ou guerre des preuves ?

2009

Le don comme transformation : du sang au médicament

2016

International audience

Asymptomatic Amyloidosis at the Time of Diagnostic Bone Marrow Biopsy in Newly Diagnosed Patients with Multiple Myeloma and Smoldering Multiple Myelo…

2009

Abstract Abstract 2803 Poster Board II-779 Background. The rate of asymptomatic amyloidosis (asym-amyloidosis) detected in patients with newly diagnosed multiple myeloma (MM) or smoldering multiple myeloma (SMM) is unknown. This topic is significant because unrecognized AL may be associated with increased mortality may change the patient's management. The objective of the present investigation was to evaluate the number and clinical significance of asym-amyloidosis in MM and SM patients at the time of the diagnostic bone marrow (BM) biopsy for MM. Materials and Methods. The study population was selected from the Mayo Clinic Dysproteinemia database and consisted of consecutive patients with …

Ebrei e accusa di omicidio rituale: in margine a un libro di Ariel Toaff

2007

Aproximaciones moleculares al estudio de las interacciones de rotavirus y norovirus con el huésped

2020

Los norovirus humanos son los principales agentes etiológicos de gastroenteritis aguda en todo el mundo. Aunque los norovirus son muy diversos (se han detectado más de 30 genotipos en humanos), durante los últimos 40 años la mayoría de los brotes y epidemias han sido causados por cepas del genotipo GII.4, lo que plantea interrogantes sobre su persistencia en la población. Entre otras posibles explicaciones, se considera que la evasión inmunológica es la principal causa de su éxito. Para estudiar en detalle el reconocimiento y la evasión de anticuerpos, analizamos un epítopo conformacional reconocido por un anticuerpo monoclonal (3C3G3) mediante mutagénesis dirigida y resonancia superficial …

Phase III studies on novel oral anticoagulants for stroke prevention in atrial fibrillation -a look beyond the excellent results

2012

Volatile constituents of aerial parts of three endemicCentaureaspecies from Turkey:Centaurea amanicolaHub.-Mor.,CentaureaconsanguineaDC. andCentaurea…

2008

The volatile constituents of the aerial parts of Centaurea amanicola Hub.-Mor., Centaurea consanguinea DC. and Centaurea ptosimopappa Hayek were extracted by hydrodistillation and analysed by GC and GC–MS. Altogether 94 components were identified. Sesquiterpenoids, fatty acids and carbonylic compounds were the most abundant components in the oils. Hexadecanoic acid and (Z,Z )-9,12-octadecadienoic acid were the main fatty acids in all the examined samples, that showed different patterns of composition. The study on the biological activity of the oils showed an action mainly against the Gram-positive pathogens.