PubMed · 8428195
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M F Earl, L G Adebonojo, J S Fisher. 1993. Creating and using a faculty interests database.. https://pubmed.ncbi.nlm.nih.gov/8428195/
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A three-dimensional (3D) stereoelectronic pharmacophore developed from a 3D quantitative structure-activity relationship (QSAR) investigation formed the basis of the development of a two-phase data-mining methodology to uncover novel leads to inhibit human immunodeficiency virus type 1 (HIV-1) reverse transcriptase at the nonnucleoside binding site. The database searching phase employed a field search for ligand requirements (such as log P, molecular volume) that were accessible from the database keys. Next, a 3D database search was performed that used an automated fitting procedure and the calculation of several binding parameters. These binding parameters were used to test the hits by a discriminant function that was previously trained to recognize active from inactive analogs. During the structural evaluation phase of the methodology, conformational properties and complementary receptor features of the hits were examined by 2D and 3D evaluations, which were followed by molecular modeling investigations. When this method was applied to a test database, an improvement from 6.4% to 100% active analogs was achieved.
OBJECTIVE: To assess the agreement between the functions of seven configurations of Patient Data Management Systems (PDMS) and the Dutch specifications prepared by the users prior to use. DESIGN: An observational descriptive study with hospital visits of seven configurations of five different PDMS systems including three commercial systems and two locally developed systems. SETTING: Seven Dutch level I intensive care units in university and teaching hospitals. MEASUREMENTS AND RESULTS: A substantial disagreement was found between the Dutch specifications and the actual functions of the PDMS configurations tested. Between the PDMS configurations, major differences in key features, including "automated charting", "information and care planning", and "management information", were observed. Automated charting is adequately supported by the three commercial systems. All configurations tested had limited functions supporting care planning. In none of the configurations tested was the required function present to support unit management with reports on resource utilisation and outcome performance. The automatic calculation of prognostic scores was either absent or incorrect. The implementation, the (continuous) configuration and the training required a substantial investment in costs and human resources. CONCLUSION: Today, none of the PDMSs tested satisfy the Dutch specifications. This can be explained by technical impossibilities of the systems and shortcomings in the actual configuration or in the unit organisation. The PDMS might become a valuable tool in improving the quality of ICU practice, but full implementation of these systems according to the specifications still has a long way to go.
The assembly of large compound libraries for the purpose of screening against various receptor targets to identify chemical leads for drug discovery programs has created a need for methods to measure the molecular diversity of such libraries. The method described here, for which we propose the acronym RESIS (for Receptor Site Interaction Simulation), relates directly to this use. A database is built of three-dimensional representations of the compounds in the library and a set of three-point three-dimensional theoretical receptor sites is generated based on putative hydrophobic and polar interactions. A series of flexible, three-dimensional searches is then performed over the database, using each of the theoretical sites as the basis for one such search. The resulting pattern of hits across the grid of theoretical receptor sites provides a measure of the molecular diversity of the compound library. This can be conveniently displayed as a density map which provides a readily comprehensible visual impression of the library diversity characteristics. A library of 7500 drug compounds derived from the CIPSLINEPC databases was characterized with respect to molecular diversity using the RESIS method. Some specific uses for the information obtained from application of the method are discussed. A comparison was made of the results from the RESIS method with those from a recently published two-dimensional approach for assessing molecular diversity using sets of compounds from the Maybridge database (MAY).