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Last Posted: Feb 22, 2024
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Recent advances in polygenic scores: translation, equitability, methods and FAIR tools.
Ruidong Xiang et al. Genome Med 2024 2 (1) 33

From the abstract: " We review the latest potential benefits of PGS in the clinic and challenges to implementation. PGS could augment risk stratification through combined use with traditional risk factors (demographics, disease-specific risk factors, family history, etc.), to support diagnostic pathways, to predict groups with therapeutic benefits, and to increase the efficiency of clinical trials. However, there exist challenges to maximizing the clinical utility of PGS, including FAIR (Findable, Accessible, Interoperable, and Reusable) use and standardized sharing of the genomic data needed to develop and recalculate PGS, the equitable performance of PGS across populations."

Selection, optimization and validation of ten chronic disease polygenic risk scores for clinical implementation in diverse US populations
NJ Lennon et al, Nature Medicine, February 19, 2024

From the abstract: " From an initial list of 23 conditions, ten were selected for implementation based on PRS performance, medical actionability and potential clinical utility, including cardiometabolic diseases and cancer. Standardized metrics were considered in the selection process, with additional consideration given to strength of evidence in African and Hispanic populations. We then developed a pipeline for clinical PRS implementation (score transfer to a clinical laboratory, validation and verification of score performance), and used genetic ancestry to calibrate PRS mean and variance, utilizing genetically diverse data from 13,475 participants of the All of Us Research Program cohort to train and test model parameters. "

Polygenic Risk in Families With Spontaneous Coronary Artery Dissection.
Ingrid Tarr et al. JAMA Cardiol 2024 1

From the abstract: "In this genetic association study including 13 families with SCAD, 173 individuals with sporadic SCAD, and 1127 controls, a polygenic risk score for SCAD was associated with significantly higher odds of disease in both familial and sporadic SCAD compared with healthy controls. We conclude that common genetic variants play an important role in all forms of SCAD, can potentially explain familial clustering, and further emphasize the complex genetic etiology of disease. "

Validity of European-centric cardiometabolic polygenic scores in multi-ancestry populations
CC Topricneau et al, EJHG, January 5, 2024

From the abstract: "Polygenic scores (PGSs) provide an individual level estimate of genetic risk for any given disease. Since most PGSs have been derived from genome wide association studies (GWASs) conducted in populations of White European ancestry, their validity in other ancestry groups remains unconfirmed. This is especially relevant for cardiometabolic diseases which are known to disproportionately affect people of non-European ancestry. "


Disclaimer: Articles listed in the Public Health Genomics and Precision Health Knowledge Base are selected by the CDC Office of Public Health Genomics to provide current awareness of the literature and news. Inclusion in the update does not necessarily represent the views of the Centers for Disease Control and Prevention nor does it imply endorsement of the article's methods or findings. CDC and DHHS assume no responsibility for the factual accuracy of the items presented. The selection, omission, or content of items does not imply any endorsement or other position taken by CDC or DHHS. Opinion, findings and conclusions expressed by the original authors of items included in the update, or persons quoted therein, are strictly their own and are in no way meant to represent the opinion or views of CDC or DHHS. References to publications, news sources, and non-CDC Websites are provided solely for informational purposes and do not imply endorsement by CDC or DHHS.

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