Polygenic Contributions to Chronic Overlapping Pain Conditions in a Large Electronic Health Record Sample
- PMID:36736868
- PMCID: PMC10257768
- DOI: 10.1016/j.jpain.2023.01.018
Polygenic Contributions to Chronic Overlapping Pain Conditions in a Large Electronic Health Record Sample
Abstract
Chronic overlapping pain conditions (COPCs) are believed to share common etiological mechanisms involving central sensitization. Genetic and environmental factors putatively combine to influence susceptibility to central sensitization and COPCs. This study employed a genome-wide polygenic risk score approach to evaluate genetic influences on 8 common COPCs. COPCs were identified by International Classification of Disease codes in Vanderbilt's deidentified clinical biorepository (BioVU), with each COPC condition empirically weighted for the level of central sensitization based on prior work. A centralized pain score (CPS) was calculated for 55,340 individuals by summing the weighted number of COPCs. Overall, 12,502 individuals (22.6%) were diagnosed with at least 1 COPC, with females exhibiting nearly twice the mean CPS as males. To assess the genetic influence on centralized pain in COPCs, 6 pain polygenic risk scores (PRSs) were developed using UK Biobank data to predict 6 pain criteria (no pain, neck/shoulder, abdomen, hip, knee, low back pain). These PRSs were then deployed in the BioVU cohort to test for association with CPS. In regression models adjusted for age, sex, and BMI, all pain PRSs except hip pain were significantly associated with CPS. Our findings support a shared polygenic influence across COPCs potentially involving central sensitization mechanisms. PERSPECTIVE: This study used a polygenic risk score approach to investigate genetic influences on chronic overlapping pain conditions. Significant findings in this study provide evidence supporting previous hypotheses that a shared polygenic influence involving central sensitization may underly chronic overlapping pain conditions and can guide future biomarker and risk assessment research.
Keywords: Chronic overlapping pain conditions; central sensitization; chronic pain; genetic; polygenic risk score.
Copyright © 2023 United States Association for the Study of Pain, Inc. Published by Elsevier Inc. All rights reserved.
Conflict of interest statement
Disclosures: David Samuels, Nancy Cox, and Annika Faucon have no conflicts of interest to declare. Stephen Bruehl is a consultant for NeuroBo. Lori Schirle has received speaker honoraria and conference travel awards from the American Association of Nurse Anesthetists and the Kentucky Association of Nurse Anesthetists.
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