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PubMed1982

AVLINE: a data base and critical review system of audiovisual materials for the education of health professionals.

The AVLINE data base, operated by the National Library of Medicine, was designed to aid in the selection, use, and sharing of quality audiovisual material in the education of health professionals and to promote the quality production of such materials. AVLINE provides standardized bibliographic and critical review information in both online and printed catalog form. In this report the evolution of AVLINE is traced, and the development of its companion review system is examined.

Audiovisual Aids↗
PubMed1978

Bibliographic control of nonprint educational material.

AVLINE is an on-line data base maintained by the National Library of Medicine containing references to over 5,000 nationally available nonprint materials. Each title is screened for technical quality, processed according to NLM's categorization, and undergoes descriptive and subject cataloging. In addition to the bibliographic control, an assessment is made of educational potential and content validity by the peer appraisal process of the Association of American Medical Colleges (AAMC). AVLINE is available through the computer network that supports the MEDLINE system. The data base offers the use of a wide range of sophisticated retrieval possibilities.

Audiovisual Aids↗
PubMed2000

Gene expression profiles in squamous cell carcinomas of the oral cavity: use of laser capture microdissection for the construction and analysis of stage-specific cDNA libraries.

Head and neck squamous cell carcinoma (HNSCC) is the sixth most common cancer among men in the developed world affecting the oral cavity, salivary glands, larynx and pharynx. Utilizing tissue from patients with HNSCC, we sought to systematically identify and catalog genes expressed in HNSCC progression. Here, we demonstrate the successful use of laser capture microdissection for procuring pure populations of cells from patient tissue sets comprised of oral squamous cell carcinomas (OSCCs) and matching normal tissue. From the estimated 5000 cells procured for each sample, we were able to extract total RNA (14.7-18.6 ng) of sufficient quality to transcribe GAPDH by reverse transcriptase-polymerase chain reaction (RT-PCR). The RNA was used for the synthesis of blunt-ended, double-strand complementary DNAs (cDNAs) by oligo (dT)-mediated reverse transcription, followed by addition of linkers. Primers specific for these linkers with uracil deglycosylase-compatible ends were used to amplify these cDNAs by PCR and the product was subcloned into the pAMP10 cloning vector. Ninety-six clones from each of six libraries were randomly sequenced and results indicated that 76-96% of the inserts represent either anonymous expressed sequence tags (ESTs) (25-48%), known genes (9-29%) or novel sequences (27-51%), respectively, with very little redundancy. These results demonstrate that high quality, representative cDNA libraries can be generated from microdissected OSCC tissue. Furthermore, these finding suggest the existence of at least 132 novel genes expressed in our cDNA libraries, which may have a role in the pathogenesis of HNSCC, and may represent novel markers for early detection as well as targets for pharmacological intervention in this disease.

Aged↗
PubMed2004

New directions in medical e-curricula and the use of digital repositories.

Medical educators involved in the growth of multimedia-enhanced e-curricula are increasingly aware of the need for digital repositories to catalogue, store and ensure access to learning objects that are integrated within their online material. The experience at the Faculty of Medicine at McGill University during initial development of a mainstream electronic curriculum reflects this growing recognition that repositories can facilitate the development of a more comprehensive as well as effective electronic curricula. Also, digital repositories can help to ensure efficient utilization of resources through the use, re-use, and reprocessing of multimedia learning, addressing the potential for collaboration among repositories and increasing available material exponentially. The authors review different approaches to the development of a digital repository application, as well as global and specific issues that should be examined in the initial requirements definition and development phase, to ensure current initiatives meet long-term requirements. Often, decisions regarding creation of e-curricula and associated digital repositories are left to interested faculty and their individual development teams. However, the development of an e-curricula and digital repository is not predominantly a technical exercise, but rather one that affects global pedagogical strategies and curricular content and involves a commitment of large-scale resources. Outcomes of these decisions can have long-term consequences and as such, should involve faculty at the highest levels including the dean.

Cataloging↗
PubMed1986

Use of information sources at a university hospital drug information service.

The frequency of use of various sources to answer drug information requests in a university hospital drug information service was studied. All of the drug information requests received by the University of Minnesota Drug Information Service (UMDIS) between November 1, 1983, and January 27, 1984, were included in the evaluation. A total of 1448 requests from health-care professionals and consumers were reviewed. The 10 most frequently used information sources in order of most to least often used were Facts and Comparisons, previous knowledge or experience of the UMDIS staff, Drugdex, Martindale: The Extra Pharmacopoeia, USP DI, the UMDIS files, information from pharmaceutical manufacturers, Goodman and Gilman's the Pharmacological Basis of Therapeutics, and Meyler's Side Effects of Drugs. Forty percent of the requests were from consumers. Pharmacists should characterize the type and number of drug information requests they receive and should consider the accessibility of a drug information service and biomedical library when deciding which references to purchase.

Catalogs, Drug as Topic↗
PubMed1977

Audiovisual materials: a survey of bibliographic controls in distributors' catalogs.

The current pattern of bibliographic control in audio-visual distributors' catalogs is described. Eight bibliographic control elements are defined, and the criteria for evaluating the occurrence of these elements in sixty-four sample catalogs are specified. When the distributors are grouped according to category, such as educational or commercial, the pattern of bibliographic control has three distinct clusters of elements. When the distributors are grouped by the number of titles handled, there is no clear pattern. The implications of these patterns are discussed in terms of practical library reference services. A solution to the problem of bibliographic control of health science audiovisual materials is proposed.

Audiovisual Aids↗
PubMed1985

Health care machine-readable data files: secondary analysis, access, and the role of the library.

Access to health care machine-readable data files (MRDF) is becoming increasingly important to students and researchers in the health care field who use the data in secondary analysis. Health sciences libraries must play a role in providing such access, and this role should consist primarily in providing users with information about the identity and contents of available MRDF and about how they may be obtained. Libraries should therefore collect extensive materials containing information about the MRDF that may be of interest to their users. Many such materials are available in print, and their quality may be expected to improve as newly developed methods and procedures for constructing bibliographic citations, abstracts, and catalog entries for MRDF are put into practice. Also, it is now feasible to incorporate data file abstracts into existing online bibliographic databases.

Health Services Research↗
PubMedDate not supplied

The NIA cDNA project in mouse stem cells and early embryos.

A catalog of mouse genes expressed in early embryos, embryonic and adult stem cells was assembled, including 250000 ESTs, representing approximately 39000 unique transcripts. The cDNA libraries, enriched in full-length clones, were condensed into the NIA 15 and 7.4K clone sets, freely distributed to the research community, providing a standard platform for expression studies using microarrays. They are essential tools for studying mammalian development and stem cell biology, and to provide hints about the differential nature of embryonic and adult stem cells.

Animals↗
PubMed2000

DBcat: a catalog of 500 biological databases.

The DBcat (http://www.infobiogen.fr/services/dbcat ) is a comprehensive catalog of biological databases, maintained and curated at Infobiogen. It contains 500 databases classified by application domains. The DBcat is a structured flat-file library, that can be searched by means of an SRS server or a dedicated Web interface. The files are available for download from Infobiogen anonymous ftp server.

Biology↗
PubMedDate not supplied

Acupuncture in the treatment of asthma: a critical review.

BACKGROUND: Increasingly, patients are turning to treatments and drugs that are considered "alternative" or "complementary" as part of their healthcare. In response, the National Institutes of Health (NIH) established an Office of Alternative Medicine (OAM) in 1992 to facilitate identification and evaluation of alternative and complementary therapies. Acupuncture, a therapy that has been used to treat disease in China for approximately 2,500 years has attracted considerable attention. NIH in a consensus statement derived from a Fall of 1997 consensus conference to assess acupuncture has indicated that acupuncture was useful in pain control and maybe a useful adjunct treatment for the management of asthma. Further, the US Food and Drug Administration has removed acupuncture from the "experimental medical devices" category. METHODS: We have extensively searched the literature for reports addressing the use of acupuncture in asthma treatment. We sought these using the National Library of Medicine, the Office of Alternative Medicine's database as well as other databases both English language based as well as other languages that catalog literature pertaining to alternative and complementary therapies. We then reviewed these reports and weighted the validity of the conclusions reached in the reports based on assessment of study design, number of subjects studied, duration of studies, types and number of controls, and statistical analyses used. RESULTS: Data presently in the literature do not provide sufficient support for a useful role for acupuncture in asthma management. CONCLUSIONS: Further properly designed clinical studies examining the use of acupuncture in asthma are extremely important and urgently needed.

Acupuncture Therapy↗
PubMed1997

A first catalog of genes involved in pig ovarian follicular differentiation.

As a first step toward the characterization of genetic expression in pig ovaries, we have selected 238 clones by differential hybridization from a pig granulosa cell cDNA library, using probes prepared from RNA extracted from either untreated or FSH-treated cells and, in order to generate expressed sequence tags (ESTs), we have performed 3' and 5' single-pass sequencing of these clones. Sequences of the 3' end of the 167 clones that produced informative sequence data were first compared with each other, revealing a redundancy level of 21%. Sequences from the 136 unique clones were analyzed for similarities with sequence data included in Genbank and EMBL databases. Among these unique clones, 54 (40%) matched significantly with sequences from either Genbank of EMBL: 4 with known genes in pig, 35 matched with previously reported human genes, and 15 with other mammalian genes. Eighty-two clones (60%) showed no significant match with any gene or DNA sequence in the Genbank and EMBL databases and thus may represent new pig transcripts.

Animals↗
PubMed2003

Can transcriptome size be estimated from SAGE catalogs?

MOTIVATION: SAGE (Serial Analysis of Gene Expression) can be used to estimate the number of unique transcripts in a transcriptome. A simple estimator that corrects for sequencing and sampling errors was applied to a SAGE library (137 832 tags) obtained from mouse embryonic stem cells, and also to Monte Carlo simulated libraries generated using assumed distributions of 'true' expression levels consistent with the data. RESULTS: When the corrected data themselves were taken as the underlying model of 'ground truth', the estimator converged to the 'true' value (53 535) only after counting 300 000 simulated tags, more than twice the number in the experiment. The SAGE data could also be well fit by a Monte Carlo model based on a truncated inverse-square distribution of expression levels, with 130 000 'true' transcripts and 10(6) samples needed for convergence. We conclude that the size of a transcriptome is ill-determined from SAGE libraries of even moderately large size. In order to obtain a valid estimate, one must sample a number of tags inversely proportional to the lowest abundance level, which is not known a priori. This constrains the design of SAGE experiments intended to determine biological complexity. AVAILABILITY: The 'homemade' software used for this analysis was not designed for general or 'production' use, but the authors will be happy to share Fortran sourcecode with interested parties. CONTACT: sternm@grc.nia.nih.gov

Algorithms↗
PubMedDate not supplied

[CISMeF: catalog and index of French-speaking medical sites].

The Internet has now become a major source of health information. The aim of CISMeF is to catalogue and index the main French-speaking sites and documents concerning health. This project was initiated by Rouen University Hospital. Its URL is http://www.chu-rouen.fr/cismef. CISMeF covers all areas of health care and medical sciences, and is indexed both alphabetically and according to subject. It was set up on a Sun workstation under the Sun UNIX operating system and is entirely based on static HTML. By May 1999, the number of sites and documents indexed was already over 6,500, with a mean of 75 new sites added each week. CISMeF is updated via a five-step process: resource collection, filtering, description, classification, and indexing. The Net Scoring criteria are used to assess the quality of health information on the Internet. These criteria concern eight categories: credibility, content, links, design, interactivity, quantitative aspects, ethics and accessibility. CISMeF uses two standard tools to organize information: the MeSH (medical subject heading) thesaurus from the Medline reference database (National Library of Medicine, USA) and the Dublin core metadata format. The sites and documents included in CISMeF are described using the following elements from the Dublin core project: title, author or creator, subject and keywords, description, publisher, date, resource type, format, identifier, and language.

Abstracting and Indexing↗
PubMedDate not supplied

Novel intergenic repeats of Escherichia coli K-12.

An online catalog of intergenic DNA repeat sequence elements is added to the EcoGene Escherichia coli K-12 genome sequence annotation and analysis project (bmb.med.miami.edu/EcoGene). A library of noncoding (intergenic) DNA sequences depleted of known intergenic repeat classes was searched for DNA sequence similarities to identify novel DNA repeat sequence classes.

Base Sequence↗