Abstract
Genomics is the study of an individual’s entire genetic code, in contrast to traditional genetics, which focuses on specific genes. Advances in DNA sequencing technologies have led to the development of the field of genomic medicine, which applies to nearly all medical specialities. The cost of whole genome sequencing is falling rapidly and meaningful results can be obtained from a blood sample in increasingly shorter timeframes. The importance of genetic variation in the pathogenesis of common neonatal conditions is beginning to be elucidated and the utility of genomic medicine in the management of acutely ill children on the neonatal unit has been shown in numerous recent studies.
This chapter initially provides a brief overview of genomic concepts to orientate the reader in the field. An overview of the rapidly advancing field of genomic diagnostics is provided with examples showing the benefits of using genomics to guide management on the neonatal unit. Finally, the ethical considerations around genomic medicine are explored.
The 100,000 Genomes Project in the UK is being mirrored by numerous other large scale sequencing projects around the world. A key goal of the 100,000 Genomes Project is that it will embed the infrastructure necessary for widespread genomic analysis to be used on patients with rare diseases and cancer within the National Health Service in the UK. Increasingly, genetic and genomic tests are being ‘mainstreamed’ to specialities outside of clinical genetics.
Adoption of genomic diagnostics is already in use in an increasing number of neonatal units around the globe. As the 100,000 Genomes Project moves to completion, the costs of whole genome sequencing will continue to fall and genomic analysis will be available within mainstream medicine. An understanding of the benefits, risks, limitations and ethical considerations surrounding genomic medicine will be essential for all neonatologists.
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Hastings, R., Dixit, A. (2020). Genomics for the Neonatologist. In: Boyle, E., Cusack, J. (eds) Emerging Topics and Controversies in Neonatology. Springer, Cham. https://doi.org/10.1007/978-3-030-28829-7_32
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DOI: https://doi.org/10.1007/978-3-030-28829-7_32
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