Sarcopenia and chronic pain: Identification of shared genetic determinants and therapeutic implication
Abstract
Sarcopenia and chronic pain are prevalent age-related conditions with substantial health impacts, yet their causal relationship remains unclear. Our aim is to study the bidirectional causal relationship among these diseases and identify potential therapeutic targets through genetic methods, as well as explore new therapeutic drugs. We performed bidirectional Mendelian randomization and Bayesian colocalization analyses using GWAS data from sarcopenia and chronic pain studies to explore their genetic relationships. Through integrating PheWAS and DrugBank analyses, we identified potential therapeutic candidates. We then evaluated these candidates using FAERS database for safety profiles and explored their pathway-level associations through drug-omics data. Our analyses revealed significant bidirectional genetic associations between sarcopenia and chronic pain, identifying 9 shared genes (MAPKAPK3, MYBPC3, POLR2L, DDAH1, FAM177B, ABCC8, RMDN3, RFTN2, and SUOX). Four genes (MAPKAPK3, DDAH1, ABCC8, and SUOX) were identified as druggable targets, with 18 compounds (including approved, investigational, and preclinical drugs) identified as potential therapeutic candidates. After FAERS screened and excluded candidate drugs that might aggravate muscle or pain symptoms, dexlansoprazole and glipizide showed relatively favorable safety profiles among compounds targeting these genes. Subsequent drug-omics analysis identified pathway enrichments consistent with muscle and pain-related…
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