The first physician to examine a patient with a genetic disorder or birth defect is usually a specialist in a field other than genetics. The presentation of certain categories of patients of particular interest to molecular genetics research may be distinct. The recognition of these patients by clinicians is fundamental to the study of genetic disorders at the DNA level.
Neurofibromatosis type 1 is a paradigm for how the study of a single genetic disease and its multiple molecular features has been facilitated by the use of various categories of patients. Other examples of interest to dermatologists, surgeons, and other specialists are discussed to demonstrate how the identification of key patients was instrumental in studies of gene localization and subsequent cloning, gene clusters or contiguous gene deletion syndromes, or mutation phenomena such as imprinting, uniparental disomy, and gonadal mosaicism. The molecular researcher has limited access to surgical specimens,
Palmer SE, Stephens K. From the Clinic to the Research Laboratory: The Role of the Clinician in Molecular Genetic Studies. Arch Dermatol. 1993;129(11):1424–1429. doi:10.1001/archderm.1993.01680320058008
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