RESUMO
The objective is to evaluate Grifols' DG-PT L Rec liquid reagent for prothrombin time (PT) determination in comparison to the laboratory's reference reagent (Siemens' Thromborel S). For linearity, the average master curve for PT and five nominal prothrombin concentrations was obtained from five calibration curves. Within-assay precision (repeatability) was calculated after measuring 20 successive tests of normal and pathological controls. For correlation, 581 routine clinical citrated plasma samples were assessed with both reagents. The BCS XP hemostasis analyzer was used. Linearity of the DG-PT L Rec was good (Pâ<â0.001). The coefficient of variation met the desirable imprecision of less than 2% (normal controls: 1.7%; pathological controls: 0.9%). Correlation between DG-PT L Rec and Thromborel S was high (râ=â0.9795; PT in %). In subgroups of anticoagulated, low fibrinogen, lipemic, jaundice, and hemolyzed samples the correlation was more than 0.95. Performance of DG-PT L Rec was high and comparable to the reference reagent.
Assuntos
Testes de Coagulação Sanguínea/métodos , Tempo de Protrombina/métodos , Tromboplastina/uso terapêutico , Hemostasia , Humanos , Estudos Prospectivos , Tromboplastina/farmacologiaRESUMO
A synthetic route to a new structural type of potential antibacterials, with a hybrid 3-aryltetrahydroisoquinoline-6,7-diol/N-aryloxazolidinone structure, is reported. The synthesis involves the successive construction of the 3-aryltetrahydroisoquinoline and 4-substituted oxazolidinone moieties, the latter taking advantage of the functionalization at the para position of the aryl group.
Assuntos
Antibacterianos/farmacologia , Bactérias Gram-Negativas/efeitos dos fármacos , Bactérias Gram-Positivas/efeitos dos fármacos , Oxazolidinonas/farmacologia , Tetra-Hidroisoquinolinas/farmacologia , Animais , Antibacterianos/síntese química , Hidrocarbonetos Aromáticos/química , Testes de Sensibilidade Microbiana , Oxazolidinonas/síntese química , Relação Estrutura-Atividade , Tetra-Hidroisoquinolinas/síntese químicaRESUMO
The synthesis of N-aryloxazolidinone 1, a conformationally constrained analog of linezolid embodying a tricyclic pyrrolo[1,2-a][4,1]benzoxazepine moiety as the N-aryl substituent, is reported. The synthetic route involves the successive construction of the pyrrole, oxazepine, and oxazolidinone rings, with incorporation of the isoxazolylamino moiety in the last synthetic steps.