[Pharmacological interactions: a professional challenge]. / Interacciones farmacológicas: un reto profesional.

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Interacciones farmacológicas: un reto profesional / No disponible

No disponible

[Drug information management through the intranet of a hospital center]. / Original Breve Gestión de la información de medicamentos mediante la intranet de un centro hospitalario.

OBJECTIVE: This paper describes the methodology used for the implementation and validation of a network resource incorporated to the intranet of the Hospital, in order to retain and disseminate information from the Drug Information Center (DIC) of a pharmacy service in a hospital center. METHOD: A working group designed the structure, contents, memory needs, priority of access for users and a quality assessment questionnaire. RESULTS: The resource developed by the working group had a capacity of 70 Gb and its structure was based on HTML documents, including files with different format and 12 theme areas. Two levels of priority of access were established depending on the user and two persons were in charge of the resource. The questionnaire was delivered after three months of use. Sixty nine per cent of the users regarded the resource as very useful and 31%, as useful. The final structure, according to the results of the survey, had 11 theme areas. CONCLUSIONS: The use of the hospital Intranet in order to include and organize DIC information can be very simple and economic. Furthermore, the involvement of all the users in its design and structure can facilitate the practical use of this tool and improve its quality.

Gestión de la información de medicamentos mediante la intranet de un centro hospitalario / Drug information management through the intranet of a hospital center

Objetivo: En el presente trabajo se describe la metodología deimplantación y validación de un recurso de red incluido en la intranetdel Hospital, para almacenar y difundir la información delCentro de Información de Medicamentos (CIM) de un servicio defarmacia en un centro hospitalario.Método: Un grupo de trabajo diseñó la estructura, contenido,necesidades de memoria, prioridades de acceso de los usuarios yuna encuesta para evaluar la calidad.Resultados: El recurso obtenido de 70 Gb de capacidad seestructuró mediante documentos HTML incluyendo archivosde diferente formato con 12 áreas temáticas. Se establecieron2 niveles de prioridad de acceso según el usuario y dos responsablesdel recurso. La encuesta realizada tras tres meses de utilizaciónmostró que el 69% de los usuarios, consideró el recurso muyútil, y el 31% lo calificó de útil. La estructura final, según los resultadosde la encuesta fue de 11 áreas temáticas.Conclusiones: La utilización de la intranet del hospital paraincluir y estructurar la información del CIM puede realizarse deuna forma sencilla y económica. Además, la participación detodos los usuarios en su diseño y estructura, puede facilitar la utilidadpráctica de esta herramienta y aumentar su calidad

Objective: This paper describes the methodology used for theimplementation and validation of a network resource incorporatedto the intranet of the Hospital, in order to retain and disseminateinformation from the Drug Information Center (DIC) of a pharmacyservice in a hospital center.Method: A working group designed the structure, contents,memory needs, priority of access for users and a quality assessmentquestionnaire.Results: The resource developed by the working group had acapacity of 70 Gb and its structure was based on HTML documents,including files with different format and 12 theme areas.Two levels of priority of access were established depending on theuser and two persons were in charge of the resource. The questionnairewas delivered after three months of use. Sixty nine percent of the users regarded the resource as very useful and 31%, asuseful. The final structure, according to the results of the survey,had 11 theme areas.Conclusions: The use of the hospital Intranet in order toinclude and organize DIC information can be very simple and economic.Furthermore, the involvement of all the users in its designand structure can facilitate the practical use of this tool andimprove its quality

Discovery of thioazepinone ligands for Src SH2: from non-specific to specific binding.

The structure-based design and synthesis of new thioazepinones as ligands for Src SH2 protein is presented. From benzothioazepinones, ligands with somewhat unspecific binding properties, simpler thioazepinones were designed, the best ones demonstrated nanomolar affinity for Src SH2. A few of these new ligands were crystallized with the protein and demonstrated a specific binding mode with the protein.

The substrate binding site of human liver cytochrome P450 2C9: an approach using designed tienilic acid derivatives and molecular modeling.

Biochemical experiments, using the well-defined human liver CYP2C9 expressed in yeast, and molecular modeling techniques were used to derive a predictive model for substrates of CYP2C9. The ability of 10 2-aroylthiophenes related to tienilic acid to act as substrates for CYP2C9 was studied. Four of them were original compounds that were synthesized and completely characterized by several spectroscopic techniques. In these 10 compounds various chemical functions, such as ester, amide, alcohol, phenol, ether or tetrazole functions, replaced the OCH2COOH function of tienilic acid. Among them, only the derivatives containing an acidic function (carboxylic acids, phenol, and tetrazole whose pKaS are 4.8, 6.3, and 3.8, respectively) underwent a 5-hydroxylation of their thiophene ring like tienilic acid. Despite their close structural analogy with tienilic acid, all of the other compounds not only did not undergo any 5-hydroxylation of their thiophene ring but also failed to act as inhibitors of CYP2C9. These results strongly suggested that the presence, at pH 7.4, of a negative charge on the substrate is a very important feature in its recognition by CYP2C9. In fact, the four new substrates of CYP2C9 described in this study, a carboxylic acid, phenol, and tetrazole derivative, each of which is related to tienilic acid, and the antiinflammatory drug, suprofen (with Km between 12 and 130 microM and kcat between 0.2 and 1.3 min-1), as well as almost all CYP2C9 substrates reported in the literature, exhibit a pKa below 7 (except phenytoin whose pKa is 8.1). They mainly exist as anions at physiological pH. By using molecular modeling techniques, 12 CYP2C9 substrates were superimposed with respect to their hydroxylation site and fitted onto templates, which were rigid molecules such as (S)-warfarin and phenytoin. It was thus possible to arrange them in order that all their anionic sites were at a distance around 4 A from a common point (a putative cationic site of the protein) in space. These results provide a model of the substrate binding site of CYP2C9, in which substrates interact through their anionic site A- with a cationic residue of the CYP2C9 protein C+. In that model, the distance between the hydroxylation site (Hy) and the anionic site (A-) is 7.8 +/- 1.6 A, and the