Revolutionizing Personalized Medicine Through Genome-Wide Technologies
Living a healthy life involves various well-known practices such as maintaining a healthy weight, regularly exercising, eating nutritious food, and avoiding smoking. Now, imagine combining these proactive steps with comprehensive individual health data to identify and mitigate your risk of developing specific diseases.
Thanks to revolutionary genome-wide technologies, creating personalized health guides that predict disease risks and tailor preventive measures is becoming a reality. According to Dr. Victor Ortega, Associate Director for the Mayo Clinic Center for Individualized Medicine in Arizona, United States, these technologies offer unprecedented potential for early intervention and disease prevention.
A Deep Dive into Genetic Risk Scores
Dr. Ortega explains that genetic risk scores are derived from complex data sets encompassing thousands to hundreds of thousands of a person’s DNA sequence variants. These scores can predict risks for a wide range of diseases, including heart disease, diabetes, asthma, and various cancers.
“Envision having your genetic predisposition for a heart attack in your 50s or being placed in the top 5% of the population at risk for cancer or diabetes based on your entire genome,” he says. “Armed with this information, you can make informed lifestyle decisions or schedule targeted screening to lower your risk.”
From Personal Experience to a Life Mission
Dr. Ortega’s journey in precision medicine is deeply personal. Inspired by his grandmother, who died of asthma and belonged to a community vastly underrepresented in genetic studies, he seeks to overturn health disparities.
“Puerto Ricans have the highest severity and frequency of asthma among any ethnic group worldwide,” Dr. Ortega highlights. “They also represent less than 1% of subjects in genetic studies.” Driven by his grandmother’s memory, he has dedicated his career to developing personalized cures and diagnostics for underrepresented populations.
Understanding Polygenic Risk Scores
Each individual carries millions of genetic variants, each having a small impact on disease risk. When combined, these variants can significantly influence the likelihood of developing a condition. Polygenic risk scores estimate an individual’s overall risk of a disease by synthesizing the slight effects of
numerous variants throughout the genome.
It is crucial to understand that polygenic risk scores do not diagnose diseases directly. They indicate overall risk levels; individuals with high scores are not guaranteed to develop the disease, and those with lower scores can still be at risk.
“Lifestyle choices and environmental factors play critical roles in disease outcomes,” Dr. Ortega emphasizes. “People with identical genetic risks can have different health outcomes based on their lifestyle or environmental exposures.”
Navigating the Future of Medicine: Omics Research
Omics refers to the interconnected fields of biological sciences, such as genomics, proteomics, epigenomics, transcriptomics, and metabolomics. Dr. Ortega underscores the importance of omics research in advancing personalized medicine.
“Omics data can help us understand the molecular causes of diseases and identify biomarkers for targeted treatments and diagnostics,” he says. “It is a multidisciplinary area that encompasses the study of molecules in human systems, which has enormous potential to shape the future of medicine.”
Recent breakthroughs at Mayo Clinic’s Center for Individualized Medicine include predicting antidepressant response for patients with depression, discovering therapeutic strategies for bone marrow cancer, and identifying genetic risk factors for severe Covid-19.
Transitioning Research to Clinical Practice
Dr. Ortega aims to bridge the gap between research laboratories and clinical practices, enabling healthcare providers to apply omics discoveries directly to patient care.
He is leading the development of a polygenic risk score framework at Mayo Clinic, focusing initially on interstitial lung disease. By incorporating both rare and common genetic variants, polygenic risk scores provide a more comprehensive risk assessment for this condition.
“Our goal is to make personalized medicine more accessible and equitable for everyone,” Dr. Ortega explains. “Discovering disease-causing genetic variations and developing targeted treatments are essential steps towards achieving this objective.”
Engaging the Public and Advocating for Health Equity
Dr. Ortega is not only a researcher but also a passionate advocate for health equity. He believes that all individuals, regardless of their ethnicity or socioeconomic background, should have access to personalized medicine.
“Our mission is to promote health equity by ensuring that everyone benefits from scientific advancements,” Dr. Ortega emphasizes. “This is why we focus on underrepresented populations and strive to make personalized medicine a reality for all.”
Conclusion
The future of personalized medicine is here, and it is thanks to groundbreaking genome-wide technologies and dedicated researchers like Dr. Victor Ortega. By integrating genetic risk scores and omics research, healthcare providers can offer personalized health guides, enabling early disease detection and tailored treatment options.
“Personalized medicine is not just a possibility; it is a necessity. It empowers individuals with the knowledge and tools to take control of their health, mitigating disease risks and improving overall quality of life,” Dr. Ortega concludes.
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