ABSTRACT
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.
Subject(s)
Blood Coagulation Tests/methods , Prothrombin Time/methods , Thromboplastin/therapeutic use , Hemostasis , Humans , Prospective Studies , Thromboplastin/pharmacologyABSTRACT
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.
Subject(s)
Anti-Bacterial Agents/pharmacology , Gram-Negative Bacteria/drug effects , Gram-Positive Bacteria/drug effects , Oxazolidinones/pharmacology , Tetrahydroisoquinolines/pharmacology , Animals , Anti-Bacterial Agents/chemical synthesis , Hydrocarbons, Aromatic/chemistry , Microbial Sensitivity Tests , Oxazolidinones/chemical synthesis , Structure-Activity Relationship , Tetrahydroisoquinolines/chemical synthesisABSTRACT
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.
