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Article

Mu-opioid receptor expression on B cells as a potential biomarker for chronic pain: a follow-up study with patients with fibromyalgia

27 May 2025

Abstract excerpt

Introduction: Before COVID-19 pandemic, we identified the percentage of B cells expressing the Mu-opioid receptor (Mu+ B cells) as a potential marker, named Mu-Lympho-Marker (MLM), for chronic pain (CP) in patients with fibromyalgia (FM) and osteoarthritis. Objectives: Here, we demonstrate the stability of MLM over time through a comparative analysis of biological, clinical, and psychological data collected from...

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PMID: 40444020
DOI: 10.1097/pr9.0000000000001283

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