Abstract
In recent years, the attention of the genomics and genetics research community has shifted toward understanding the basis of common disorders. The spectacular growth of genome-wide association studies has shed new light on the variants influencing risk factors. Understanding pathogenesis and etiology, and finding new ways to prevent and treat those diseases are major challenges. In the era of genomics, a promise of personalized prevention and drug treatment is presented, which many people meet with enthusiasm but which others call into question. The Public and Professional Policy Committee (PPPC) of the European Society of Human Genetics (ESHG), EuroGentest and the Institute for Prospective Technological Studies (IPTS) convened to discuss the relevance and possibilities of genetic testing for common disorders. Currently (in 2010), the genetics research community is skeptical about the possibilities of genetic susceptibility testing and screening contributing significantly to the improvement of the quality of health care. Meanwhile, some applications of very limited clinical utility have become available directly to consumers. Recently, the PPPC published critical recommendations on policy concerning DTC genetic testing (EJHG, 25 August 2010). When considering the potential of new genomic developments for a public health perspective, this Background Document takes the spectrum ranging from monogenic disorders on the one hand to common complex disorders on the other hand into account. It is argued that associations between genetic variants and disease risks of clinical relevance have been established, for instance for hereditary breast and ovarian cancer, colon cancer, diabetes mellitus (MODY subtypes), thrombosis, cardiovascular disorders, celiac disease and Alzheimer's disease. Although these examples relate to the monogenic subforms of common disease, they can nevertheless be used to reflect on the possibilities and relevant obstacles in using the new genetics in public health. The deliberations, reflected in the final Background Document, have led to the below recommendations from the PPPC concerning the pitfalls and possibilities of genetic testing in common disorders. A draft of both the Background Document and Recommendations has been distributed and posted on the web during the summer of 2009 to elicit further comments. The PPPC and the Board of the ESHG approved the final version. This final text is considered to reflect the views of the European human genetics scientific and professional community.
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