Abstract
New genomic applications are affecting internal medicine subspecialties and will soon affect the practices of all physicians. This chapter discusses the fields of genetics versus genomics and details the fundamentals of a genomic approach to health care. It includes special considerations such as the intersection between genomics and evidence-based medicine, genetic discrimination, the regulation of genetic testing, and the marketing of genetic testing directly to consumers. The chapter looks at genome-wide association studies and clinical care, as well as sequencing technologies. Tables offer examples of patterns of inheritance, clinical recommendations and red flags raised by family history, and intended uses for genetic tests. One figure shows an example pedigree obtained by using the US surgeon general's My Family Health Portrait family history tool, while the other shows the chromosomal locations of genetic markers associated with disease risk discovered in genome-wide association studies between 2005 and 2009. This chapter contains 41 references.
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