DIAGNOSTIC ODYSSEY
Patients carrying rare or undiagnosed diseases take on average 6 years to reach a final diagnosis, after having had multiple referrals, encounters with specialists, and a battery of often unnecessary investigations.
Not only does this odyssey represents a health risk, but also an emotional and financial burden.
A diagnostic odyssey is a long and difficult journey that patients and their families face when trying to obtain a diagnosis for a rare or undiagnosed disease. It often involves multiple doctor visits, tests, and consultations with specialists over a period of months or even years.
During a diagnostic odyssey, patients may undergo numerous medical tests and procedures, sometimes with no clear diagnosis. This can be frustrating and emotionally taxing for patients and their families, who may feel like they are in a constant state of uncertainty and anxiety.
Diagnostic odysseys can be particularly challenging for patients with rare diseases because they often require specialized knowledge and expertise to diagnose, and many healthcare providers may not have experience with these conditions. As a result, patients may need to seek out experts in different fields or even travel long distances to find a diagnosis.
The process of a diagnostic odyssey can also be expensive, as it often involves multiple medical appointments, testing, and procedures. Additionally, patients may have to take time off work or school, and travel expenses can quickly add up.
Overall, the diagnostic odyssey can be a challenging and exhausting experience for patients and their families, but it is important to persist in seeking answers and support from healthcare professionals and patient advocacy groups.
GWAS/PheWAS
GWAS (Genome-Wide Association Study) and PheWAS (Phenome-Wide Association Study) are two types of studies that use large-scale genetic and phenotypic data to identify associations between genetic variants and diseases or traits.
GWAS is a type of study that analyzes genetic data from a large number of individuals to identify genetic variants that are associated with a particular disease or trait. This is done by comparing the genetic profiles of individuals with and without the disease or trait of interest. GWAS has been successful in identifying thousands of genetic variants that are associated with a wide range of diseases and traits, including diabetes, heart disease, and cancer.
PheWAS, on the other hand, is a type of study that analyzes phenotypic data from a large number of individuals to identify associations between genetic variants and a wide range of diseases and traits. PheWAS examines many phenotypes simultaneously, which allows researchers to identify genetic variants that are associated with multiple diseases and traits. This approach can help identify common genetic pathways that underlie multiple diseases and traits and can also help identify potential drug targets.
In summary, while GWAS focuses on identifying genetic variants associated with a particular disease or trait, PheWAS examines the association between genetic variants and a wide range of phenotypes simultaneously. Both types of studies are important for understanding the genetic basis of diseases and traits and can lead to the development of new treatments and therapies
MULTIOMICS
Multi-omics refers to the integration of multiple biological data sets, including genomics, transcriptomics, proteomics, and metabolomics, to gain a more comprehensive understanding of biological systems. Artificial intelligence (AI) has emerged as a powerful tool for analyzing large and complex data sets in various fields, including healthcare.
PRECISION MEDICINE
Precision medicine is a medical approach that considers the individual variability in genes, environment, and lifestyle of each person. It aims to provide personalized healthcare tailored to a person’s unique characteristics, leading to more accurate diagnoses, better treatments, and improved outcomes.
Precision medicine involves using advanced technologies such as genetic testing, genomic sequencing, and proteomics to identify the specific genetic, molecular, and cellular features that contribute to a person’s health or disease. By analyzing this information, doctors and researchers can develop targeted therapies that are more effective and have fewer side effects than traditional treatments.
Precision medicine is being used to treat a wide range of diseases, including cancer, cardiovascular disease, neurodegenerative disorders, and rare genetic conditions. It is also being used to help prevent disease by identifying people who are at high risk for certain conditions and providing personalized interventions to reduce their risk.
Overall, precision medicine has the potential to transform healthcare by providing more personalized and effective treatments, improving patient outcomes, and reducing healthcare costs.
ONCOGENIC DRIVERS
Oncogenic drivers are specific genetic mutations or alterations that promote the development and progression of cancer. These drivers can be found in various genes that control cell growth, division, and death. When these genes are altered or mutated, they can cause cells to divide and grow uncontrollably, leading to the development of cancer.
Some of the most common oncogenic drivers include mutations in the TP53 gene, which is responsible for regulating cell division and preventing the development of cancer. Mutations in the RAS family of genes, which regulate cell signaling pathways, are also commonly associated with cancer.
Other oncogenic drivers include mutations in genes such as EGFR, BRAF, and ALK, which are often found in specific types of cancer such as lung cancer, melanoma, and lymphoma. The identification of oncogenic drivers has led to the development of targeted therapies that can specifically target these mutations and improve the treatment outcomes for patients with cancer.
DRUG REPOSITIONING
Also known as drug repurposing, involves identifying new therapeutic uses for existing drugs. This approach can save time and resources compared to traditional drug development and has the potential to address unmet medical needs. The integration of multi-omics and AI can enhance drug repositioning efforts by enabling a more precise understanding of disease mechanisms and drug-target interactions. By analyzing large amounts of data from various sources, AI can identify novel drug-target interactions and predict the efficacy of existing drugs for new indications. Overall, the integration of multi-omics and AI has the potential to accelerate drug development and improve patient outcomes by enabling more precise and personalized treatments.
GENETIC-GENOMIC-OMICS DIAGNOSTICS
Genetic, genomic, and “omics” diagnostics refer to the use of various technologies to analyze an individual’s DNA or other biological molecules, with the aim of identifying genetic variations or other markers associated with diseases or conditions. In recent years, advances in computer protocols and artificial intelligence (AI) algorithms have greatly improved the accuracy and speed of such analyses.
Genetic diagnostics typically involves the analysis of DNA sequences to identify mutations or other variations that may be associated with inherited diseases or conditions. Genomic diagnostics, on the other hand, involves the analysis of entire genomes (i.e., all of an individual’s DNA), which can provide a more comprehensive picture of an individual’s genetic makeup.
Omics diagnostics involves the analysis of various biological molecules, such as proteins or metabolites, to identify markers associated with diseases or conditions. This can include proteomics (the analysis of proteins), metabolomics (the analysis of metabolites), and other “omics” technologies.
Computer protocols and AI algorithms have greatly improved the speed and accuracy of these diagnostics. For example, machine learning algorithms can be trained on large datasets of genetic or omics data to identify patterns and markers associated with specific diseases or conditions. This can help clinicians make more accurate diagnoses and develop personalized treatment plans.
Overall, the use of computer protocols and AI algorithms in genetic, genomic, and omics diagnostics has greatly improved our ability to identify and treat diseases, and will likely continue to be an important tool in the future of healthcare.
LACK OF DIVERSITY
Genomic databases are important resources for researchers and medical professionals to understand the genetic basis of diseases and develop personalized treatments. However, there is a significant lack of diversity in genomic databases, which can lead to biased results and inadequate healthcare for certain populations.
The majority of genomic data comes from individuals of European ancestry, while data from other populations, such as African, Latino, and Indigenous populations, is severely underrepresented. This lack of diversity can lead to biased genetic research results, which may not accurately represent other populations.
A clear example of the lack of genetic diversity in human genome databases is the Hispanic/Latino populations, which constitute approximately 10% of the world’s population, but represents less than 1% of the individuals reflected in genomic research. This lack of representation of genetic data from Hispanic/Latino individuals has a direct impact on the availability of the new version of drugs that take into account the genetic variants of human populations.
Furthermore, this lack of diversity can also have implications for personalized medicine. For example, certain genetic variants that are associated with diseases in one population may not be relevant in another population due to differences in genetic backgrounds. If genomic databases do not accurately represent the genetic diversity of all populations, personalized medicine may not be effective for everyone.
To address this issue, efforts are being made to increase diversity in genomic databases. These efforts include initiatives to collect genetic data from underrepresented populations, as well as efforts to improve data sharing and collaboration among researchers. It is important to continue these efforts to ensure that genomic databases are diverse and representative of all populations.
RARE DISEASES
Also known as orphan diseases, are medical conditions that affect a small percentage of the population. In the United States, a rare disease is defined as a condition that affects fewer than 200,000 people. In Europe, a rare disease is defined as a condition that affects fewer than 1 in 2,000 people.
There are over 7,000 rare diseases that have been identified, and many of them are genetic in nature. Often, these conditions are caused by mutations in a single gene, which can result in a wide range of symptoms and complications. Because rare diseases are so uncommon, they can be difficult to diagnose and treat, and many patients may go years without a proper diagnosis.
Because of the small number of patients affected by each rare disease, research and development of treatments for these conditions can be challenging. However, there has been progress in recent years, and many rare diseases now have targeted therapies that can help manage symptoms and improve quality of life. Additionally, patient advocacy groups and rare disease organizations are working to raise awareness of these conditions and to improve access to care and support for affected individuals and their families.
ACCC: Association of Community Cancer Centers
AMP: Association for Molecular Pathology
ASCO: American Society of Clinical
BRAF: v-Raf Murine Sarcoma Viral Oncogene Homolog B1 Cap, College of American Pathologists
cWGS: clinical Whole Genome Sequencing
cWES: clinical Whole Exome Sequencing
CNV: Copy Number Variation
EHR: Electronic Health Record
FDA: U.S. Food and Drug Administration
FISH: Fluorescence in-situ Hybridation
IHC: Immunohistochemistry
LIS: Laboratory Information System.
MDT: Multidisciplinary Team.
NGS: Next-Generation Sequencing.
RT-PCR: Reverse Transcription Polymerase Chain.
SNV: Single Nucleotide Variant.
TRF: Test Requisition Form.
VAF: Variant Allele Frequency.