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Methods Inf Med 2003; 42(05): 557-563
DOI: 10.1055/s-0038-1634383
Original Article
Schattauer GmbH

From Phenotype to Genotype: Issues in Navigating the Available Information Resources

J. A. Mitchell
1   Lister Hill National Center for Biomedical Communications, National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
2   Department of Health Management and Informatics, School of Medicine, University of Missouri, Columbia, MO, USA
,
A. T. McCray
1   Lister Hill National Center for Biomedical Communications, National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
,
O. Bodenreider
1   Lister Hill National Center for Biomedical Communications, National Library of Medicine, National Institutes of Health, Department of Health and Human Services, Bethesda, MD, USA
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Publikationsverlauf

Publikationsdatum:
08. Februar 2018 (online)

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Summary

Objectives: As part of an investigation of connecting health professionals and the lay public to both disease and genomic information, we assessed the availability and nature of the data from the Human Genome Project relating to human genetic diseases.

Methods: We focused on a set of single gene diseases selected from main topics in MEDLINEplus, the NLM’s principal resource focused on consumers. We used publicly available websites to investigate specific questions about the genes and gene products associated with the diseases. We also investigated questions of knowledge and data representation for the information resources and navigational issues.

Results: Many online resources are available but they are complex and technical. The major challenges encountered when navigating from phenotype to genotype were (1) complexity of the data, (2) dynamic nature of the data, (3) diversity of foci and number of information resources, and (4) lack of use of standard data and knowledge representation methods.

Conclusions: Three major informatics issues arise from the navigational challenges. First, the official gene names are insufficient for navigation of these web resources. Second, navigational inconsistencies arise from difficulties in determining the number and function of alternate forms of the gene or gene product and maintaining currency with this information. Third, synonymy and polysemy cause much confusion. These are severe obstacles to computational navigation from phenotype to genotype, especially for individuals who are novices in the underlying science. Tools and standards to facilitate this navigation are sorely needed.

Keywords

Phenotype - genotype - databases (genetic) - computational navigation - information systems - interoperability

Conventions used in this paper: Gene names, gene products and gene symbols are in italics.


 

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