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Ever since the human genome was decoded, we have been promised a revolution in DNA technology. Everything from curing debilitating genetic disorders to tinkering with the expression of our own individual genes seemed on the horizon. Is the everyday individual ever going to benefit from knowing what’s inside his DNA?

DATABASES

Some of the biggest tools (and getting bigger everyday) that we have are large, searchable databases containing the genetic profiles of tens of thousands of individuals. These troves of information allow researchers to look for patterns in the DNA of people who share certain traits, or genetic illnesses, to help them understand how they might originate. Ancestry databases are large collections of DNA. They rely on mitochondrial DNA to trace maternal lineages and Y chromosomal nuclear DNA to trace paternal lineages. Many online sites offer DNA testing as well as access to a community of people who have shared their genome and looking to discover how everyone is inter-related. The utility of these sites often depends on the sheer volume of people that use their servicesThe only drawback is the lack of a single, unified database containing all DNA profiles. If it were properly anonymized and handled by an impartial organization, it could also help reduce costs and provide more openness in DNA-based research papers.

MEDICINE

The field of tailoring drug therapies to an individual’s DNA, known as pharmacogenomics, is only in its infancy. As the cost of testing goes down, the number of opportunities in this field is going to exponentially rise.

Since we all have our own unique biochemistry, we all react differently to certain medications and/or combinations of medications. A wrong prescription might cause a reaction that turns out to be harmful or expensive. On the other hand, a custom-made order of drugs might speed up our recovery and provide benefits that reduce the amount of time we spend receiving therapy. One of the biggest hurdles is obtaining regulatory approval. As of now, clinical trials are already underway and more doctors are learning that such treatments are available.

DNA testing costs have to come down, and they certainly should as they become more popular, and public awareness will follow. The future of individualized DNA testing certainly looks bright.