Personalized medicine in rare diseases
Definition of personalized medicine is not an easy issue [1–3,101]. It is moving from personalized medical practice to the modern concept of personalizing the science of medicine to improve individual healthcare.
In many aspects personalized medicine refers to the translation of the interaction between the biological individuality of the patient and the environment into clinical medicine and healthcare. By the term personalized medicine we envision a complete integration of clinical (phenotype), genetic, genomic, transcriptomic, proteomic and metabolomic profiles with environmental (including nutritional) information that is provided for a particular person. The major expected consequence is to optimize preventive healthcare strategies and response to drug therapies while people are either healthy or in an early stage of the disease. Personalized medicine tries to move the population-based evidence of medical interventions towards individual evidence of how to treat the specific person based on the biological profile, clinical history and environment. The aim is to offer tailored healthcare to every person. The personalized medicine based on the integration of individual information, from the genome variation, physiology and cellular phenotype to the interaction with the personal environment, may represent a proactive, preventive and prospective model of healthcare [4–6] that is opposite to the more traditional, disease-based, reactive approach to the health status of individuals.
The fundamentals of genomic and personalized medicine and application of new technologies that may define personal biological profiles apply to every type of pathological process, disease or condition, whatever the main organ or tissue is involved in the disorder affecting the person.