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PubMed1992

Louis Gdalman, pioneer in hospital pharmacy poison information services.

The role played by hospital pharmacist Louis Gdalman in the development of poisoning information services in the Chicago area is described. In the 1930s, decades before the creation of the Chicago Poisoning Control Program, Louis Gdalman had already established a poison information service at St. Luke's Hospital in Chicago. Pharmacists provided poison information to the physicians and nurses working in the emergency room. By the early 1950s, Gdalman had established an extensive library of information on the management of acute and chronic poisoning and had developed a standard form for the collection of data from poison information calls. He personally provided a 24-hour poison information service and often took calls at home. In 1953, the American Academy of Pediatrics initiated the Chicago Area Poisoning Control Program and established treatment and referral centers at 11 hospitals, including St. Luke's Hospital. Louis Gdalman was the only pharmacist involved in this city-wide program. By 1962, the Master Poison Control Center was established at St. Luke's Hospital, which had merged with Presbyterian Hospital in 1956. Today, this center, known as the Chicago and Northeastern Illinois Regional Poison Control Center, is located at the Rush-Presbyterian-St. Luke's Medical Center in Chicago. Louis Gdalman, a hospital pharmacist, pioneered the area of poison information and established what was perhaps the first hospital-based comprehensive poison control center.

Chicago↗
PubMedDate not supplied

Assessing the scaffold diversity of screening libraries.

Medicinal chemists have traditionally realized assessments of chemical diversity and subsequent compound acquisition, although a recent study suggests that experts are usually inconsistent in reviewing large data sets. To analyze the scaffold diversity of commercially available screening collections, we have developed a general workflow aimed at (1) identifying druglike compounds, (2) clustering them by maximum common substructures (scaffolds), (3) measuring the scaffold diversity encoded by each screening collection independently of its size, and finally (4) merging all common substructures in a nonredundant scaffold library that can easily be browsed by structural and topological queries. Starting from 2.4 million compounds out of 12 commercial sources, four categories of libraries could be identified: large- and medium-sized combinatorial libraries (low scaffold diversity), diverse libraries (medium diversity, medium size), and highly diverse libraries (high diversity, low size). The chemical space covered by the scaffold library can be searched to prioritize scaffold-focused libraries.

Chemistry, Pharmaceutical↗
PubMed1998

Using scientific evidence to improve hospital library services: Southern Chapter/Medical Library Association journal usage study.

BACKGROUND: Journal usage studies, which are useful for budget management and for evaluating collection performance relative to library use, have generally described a single library or subject discipline. The Southern Chapter/Medical Library Association (SC/MLA) study has examined journal usage at the aggregate data level with the long-term goal of developing hospital library benchmarks for journal use. METHODS: Thirty-six SC/MLA hospital libraries, categorized for the study by size as small, medium, or large, reported current journal title use centrally for a one-year period following standardized data collection procedures. Institutional and aggregate data were analyzed for the average annual frequency of use, average costs per use and non-use, and average percent of non-used titles. Permutation F-type tests were used to measure difference among the three hospital groups. RESULTS: Averages were reported for each data set analysis. Statistical tests indicated no significant differences between the hospital groups, suggesting that benchmarks can be derived applying to all types of hospital libraries. The unanticipated lack of commonality among heavily used titles pointed to a need for uniquely tailored collections. CONCLUSION: Although the small sample size precluded definitive results, the study's findings constituted a baseline of data that can be compared against future studies.

Benchmarking↗
PubMed1978

Friends of the library groups in health sciences libraries.

The Houston Academy of Medicine--Texas Medical Center (HAM--TMC) Library collected data on friends of the library groups from 103 health sciences libraries, using a mail questionnaire. Sixteen of the responding libraries had independent friends groups; seven had friends groups that were subordinate to a university group. The sixteen independent groups gave as their major purposes (1) to raise money for their associated library and (2) to develop support for their library. These groups contributed an average of $4,870 a year to their libraries, the money being used primarily to purchase rare books and working-collection books and to sponsor social events. The subordinate groups contributed relatively little money to the health sciences libraries responding to the survey.

Evaluation Studies as Topic↗
PubMed1991

Publishing, libraries and new technologies in Europe--today and tomorrow.

This paper addresses the challenges facing medical and health-care librarians from a European perspective. Drawing on his extensive knowledge of European affairs, the author emphasizes the historical roots of European cultural exchange and co-operation in the biomedical area. The impact of the new technologies and the unique opportunities offered by the CEC Plan of Action for promoting co-operation in Europe are discussed. In conclusion, the threat to our cultural heritage posed by acid paper is outlined and European librarians are urged to develop collective initiatives to meet the challenges facing us all.

Europe↗
PubMed1994

LIFENET/INTERNET and the health science librarian.

The Medical Library Center of New York, a cooperative library agency for the health sciences, developed a program to offer an electronic communications system (LIFENET) with access to the Internet for its members. Information on documentation and training as well as statistics on the subsequent use of the system and of the Internet are discussed in the article. Specific examples of how health science librarians are using the system include bibliographic verification, reference, research on integrated library systems, production of duplicate journal lists, and professional activities such as electronic mail and discussion groups (listservs).

Computer Communication Networks↗
PubMed2002

Selection of peptide ligands binding to the basolateral cell surface of proximal convoluted tubules.

BACKGROUND: Recently, we have reported a novel approach of screening phage-display peptide libraries on microdissected intact renal tubular segments and identified an RGD-containing peptide ligand that specifically binds to the basolateral membrane of cortical collecting ducts (CCD). However, screening phage libraries on proximal convoluted tubules (PCT) did not yield a tubule segment-specific ligand. Here, we describe the successful modification of our previously developed phage-display approach and the identification of two distinct ligands that bind specifically to receptors expressed at the basolateral membrane of PCT. METHODS: Ex vivo screening of phage-display peptide libraries for specific ligands was adapted for PCT. The previously developed method was significantly extended by applying it to a distinct tubular segment, varying the number of rounds of biopanning and incubating phage libraries with absorber cells prior to biopanning. Binding specificity and cellular localization of selected peptide-displaying phage or the corresponding synthetic peptide were analyzed using various epithelial cell lines as well as competition assays and confocal immunofluorescence microscopy. RESULTS: Screening phage-display peptide libraries, depleted of ligands binding to ubiquitously expressed receptors by preincubation with HEK-293 cells, led to the identification of two PCT-specific ligands. Phage expressing peptides with the consensus sequence GV(K/R)GX3(T/S) or RDXR mediated 15-fold and 13-fold higher binding to PCT than control phage, and binding to PCT was 13-fold and 21-fold higher than binding to CCD, respectively. Neither phage mediated significant binding to various epithelial cell lines, and binding of both ligands was abolished by the addition of the corresponding synthetic peptide. Immunofluorescence experiments revealed a submembrane localization of both ligands upon incubation with PCT. CONCLUSIONS: Exploiting the versatility of phage-display and biopanning allowed the identification of two distinct peptide ligands that bind specifically to the basolateral membrane of PCT. Tubule segment-specific ligands, such as the described PCT ligands, may be useful for the analysis of cell-extracellular matrix interactions and may contribute to the development of new therapeutic strategies for renal diseases.

Amino Acid Sequence↗
PubMed1999

Toward the gene catalogue of sea urchin development: the construction and analysis of an unfertilized egg cDNA library highly normalized by oligonucleotide fingerprinting.

We describe the use of oligonucleotide fingerprinting for the generation of a normalized cDNA library from unfertilized sea urchin eggs and report the preliminary analysis of this library, which resulted in the establishment of a partial gene catalogue of the sea urchin egg. In an analysis of 21,925 cDNA clones by hybridization with 217 oligonucleotide probes, we were able to identify 6291 clusters corresponding to different transcripts, ranging in size from 1 to 265 clones. This corresponds to an average 3.5-fold normalization of the starting library. The normalized library represents about one-third of all genes expressed in the sea urchin egg. To generate sequence information for the transcripts represented by the clusters, representative clones selected from 711 clusters were sequenced. The construction and preliminary analysis of the normalized library are the first steps in the assembly of an increasingly complete collection of maternal genes expressed in the sea urchin egg, which will provide a number of insights into the early development of this well-characterized model organism.

Animals↗
PubMed2005

5'SAGE: 5'-end Serial Analysis of Gene Expression database.

To comprehensively identify transcription start sites and the frequencies of individual mRNAs in human cell libraries, a method of 5' end Serial Analysis of Gene Expression (SAGE) was developed recently, which makes it possible to collect a large amount of start site information, and subsequently, we have established a related database server called 5'SAGE. This database displays the observed frequencies of individual 5' end SAGE tags and previously unknown transcription start sites in the promoter regions, introns and intergenic regions of known genes. 5'SAGE will be useful for analyzing promoter regions and start site variation in different tissues, and is freely available at http://5sage.gi.k.u-tokyo.ac.jp/.

5' Flanking Region↗
PubMed2001

Comparative evaluation of 5'-end-sequence quality of clones in CAP trapper and other full-length-cDNA libraries.

To enhance the usefulness of the laboratory mouse and to facilitate the rapid assay of gene functions we have been collecting the entire set of mouse full-length cDNA by one-pass sequencing. To collect full-length cDNA clones efficiently, it is critical to construct high-quality cDNA libraries. In recent years, we have been developing a way to construct full-length cDNA libraries by using biotinylation of the cap structure (the 'CAP-trapper' method) coupled with treatment to increase reverse transcriptase efficiency at high temperature by the addition of trehalose. In this paper we report our evaluation of the quality of CAP trapper and a number of other full-length cDNA libraries, including the results of 5' end analysis of clones in CAP trapper and the other libraries. We used a procedure that compared the 5'-ends of cDNA clones with those of genes in the public databases. Our analysis showed that 63% of cDNA clones in CAP trapper libraries had sequences that were either the same length as those of equivalent genes in the public database or 5'-extended, and that 90% of these clones maintained their coding sequences. These results indicate that the CAP trapper library is a promising tool for collecting full-length cDNA in large-scale projects. Comparison of the quality of CAP trapper with that of other full-length-cDNA libraries confirmed the value of these libraries.

Algorithms↗
PubMed1966

Mechanization in a new medical school library. II. Serials and circulation.

The serials and circulation phases of the data-processing system in use at the University of New Mexico Library of the Medical Sciences are described. The development of the programs is also reported. The serials program uses simple punched card equipment. The circulation program uses the IBM 357 Data Collection System and punched card data-processing equipment.

Electronic Data Processing↗
PubMed1993

How hyper are we? A look at hypermedia management in academic health sciences libraries.

Advances in instruction-delivery technology have a direct impact on academic media centers. New technology challenges librarians philosophically, financially, and ethically to provide access to information and instructional systems. Each institution has a unique set of circumstances governing decisions to provide access to hypermedia. If patron needs are met satisfactorily through labs outside the library, it may not be necessary for the library to incorporate hypermedia into its collection. Other library media centers may serve as a main point of access, or a substantial alternative computing resource may exist in departments or professional schools. Regardless of which route is taken, hypermedia is a viable instructional delivery system and can coexist with traditional services. Future studies on various aspects of hypermedia and multimedia management should be encouraged. Academic health sciences librarians would benefit from the study of hypermedia and multimedia collection-development policies, equipment, and personnel management. As computer networking of multimedia and image databases becomes available, it will be interesting to see the role academic health sciences libraries assume in integrating these data-bases with traditional information-delivery systems. Changing technology and instructional methods will affect budgets as well as library relationships with academic departments and computing centers.

Computer Communication Networks↗
PubMed2004

Guidelines for the management of squamous cell carcinoma in organ transplant recipients.

BACKGROUND: Solid-organ transplant recipients have a high incidence of cutaneous squamous cell carcinoma (SCC) and often develop multiple and aggressive tumors. There are few published studies or reviews, which provide guidance to the clinician in the treatment of these patients. OBJECTIVE: The objective was to develop useful clinical guidelines for the treatment of skin cancer in organ transplant recipients (OTRs). METHODS: The members of the Guidelines Committee of the International Transplant-Skin Cancer Collaborative (ITSCC) carried out a computerized search utilizing the databases of the National Library of Medicine for reports in the literature on SCC in OTRs. These reports were collectively examined by the group and combined with experiences from the members' clinical practices in the development of the guidelines. RESULTS: More than 300 articles relating to SCC in OTRs were reviewed. In general, reports concerning the prevention and treatment of SCC in OTRs are of individual cases or small case series. They are retrospective in nature, statistically nonrigorous, and lack the complete epidemiologic data necessary to derive definitive conclusions. Combining these studies and collective clinical experience, however, is at present the best available method for devising guidelines for the treatment of SCC in OTRs. CONCLUSION: Guidelines developed for the treatment of skin cancer in OTRs, supported by the best available data and collective clinical experience, may assist in the management of OTRs with SCC. The development of clinical pathways and complete documentation with rigorous prospective study is necessary to improve and refine future guideline development.

Carcinoma, Squamous Cell↗
PubMed2002

Yeast assays for G-protein-coupled receptors.

Yeast assays for G-protein-coupled receptors have many attractions due to their simplicity, low cost, and lack of endogenous receptors. Since the first report of functional coupling of the human beta 2 adrenergic receptor to the yeast pheromone-response pathway in 1990, the technology has developed to a point at which more than 30 heterologous GPCRs are now published to couple. Major breakthroughs have come from an understanding of receptor-G protein interactions, alongside advances in knowledge of the structure of heterotrimeric G proteins. Yeast screens have been used to identify ligands both from compound collections and through the autocrine expression of peptide libraries. Yeast genetics has also been applied to a functional analysis of GPCRs and peptide ligands. In this review we describe the historical development of yeast GPCR assay systems and their current applications.

Biochemistry↗
PubMed2004

DNA microarray probe preparation by gel isolation nested PCR.

To develop a simplified method that can rapidly prepare DNA microarray probes in a massive scale, a lambda phage genomic DNA-fragments library was constructed for the microarray-probes collection. Four methods of DNA band recovery from the first PCR products were tested and compared. The DNA microarray probes were collected by a novel method of nested PCR that was mediated by gel isolation of the first PCR products. This method was named GIN-PCR. The probes that were prepared by this GIN-PCR technique were used as subjects to fabricate a DNA microarray. The results showed that a wooden toothpick was superior to the other 3 methods, since this technique can steadily transfer the DNA bands as the template of the second PCR after the first PCR. A group of probes were successfully collected and DNA microarrays were constructed using these probes. Hybridization results demonstrated that this technique of DNA recovery and probe preparation was rapid, efficient, and effective. We developed a cost-effective and less labor-intensive method for DNA microarray probe preparation by nested PCR that is mediated by wooden toothpick transfer of the DNA bands in the gel after electrophoresis.

Bacteriophage lambda↗
PubMed2006

High-content screening of functional genomic libraries.

Recent advances in functional genomics have enabled genome-wide genetic studies in mammalian cells. These include the establishment of high-throughput transfection and viral propagation methodologies, the production of large-scale cDNA and siRNA libraries, and the development of sensitive assay detection processes and instrumentation. The latter has been significantly facilitated by the implementation of automated microscopy and quantitative image analysis, collectively referred to as high-content screening (HCS), toward cell-based functional genomics application. This technology can be applied to whole genome analysis of discrete molecular and phenotypic events at the level of individual cells and promises to significantly expand the scope of functional genomic analyses in mammalian cells. This chapter provides a comprehensive guide for curating and preparing function genomics libraries and performing HCS at the level of the genome.

Animals↗
PubMed2006

Tomato Expression Database (TED): a suite of data presentation and analysis tools.

The Tomato Expression Database (TED) includes three integrated components. The Tomato Microarray Data Warehouse serves as a central repository for raw gene expression data derived from the public tomato cDNA microarray. In addition to expression data, TED stores experimental design and array information in compliance with the MIAME guidelines and provides web interfaces for researchers to retrieve data for their own analysis and use. The Tomato Microarray Expression Database contains normalized and processed microarray data for ten time points with nine pair-wise comparisons during fruit development and ripening in a normal tomato variety and nearly isogenic single gene mutants impacting fruit development and ripening. Finally, the Tomato Digital Expression Database contains raw and normalized digital expression (EST abundance) data derived from analysis of the complete public tomato EST collection containing >150,000 ESTs derived from 27 different non-normalized EST libraries. This last component also includes tools for the comparison of tomato and Arabidopsis digital expression data. A set of query interfaces and analysis, and visualization tools have been developed and incorporated into TED, which aid users in identifying and deciphering biologically important information from our datasets. TED can be accessed at http://ted.bti.cornell.edu.

Databases, Genetic↗
PubMed2006

Manufacturing immunity to disease in a test tube: the magic bullet realized.

Although it took over one hundred years, Ehrlich's concept of the magic bullet is now a reality. Today, therapeutic antibodies are, arguably, the most important class of new drugs for the treatment of illnesses ranging from Alzheimer's disease to cancer. The emergence of therapeutic antibodies had to wait for advances in immunochemistry that allowed construction of antibodies in vitro. The centerpiece of the new technology is the combinatorial antibody library, which essentially allows one to synthesize an artificial immune system with a diversity that exceeds that of the natural repertoire. The construction of such libraries was perceived to be difficult because, if the natural immune system was to be used as the starting material, construction of the libraries would entail protocols that are the opposite of usual cloning. In gene cloning one starts with complexity and reduces it to a singularity. In the generation of diversity by construction of combinatorial antibody libraries, one starts with a collection of clones, randomly expands their complexity, and then returns them to recoverable singularities. The methods developed to accomplish this seemingly formidable task now allow construction of antibodies in a test tube to any antigen. These synthetic antibodies may be qualitatively and quantitatively superior to those of nature.

Antibodies↗