Reciprocal interaction between depression and pain: results from a comprehensive bidirectional Mendelian randomization study and functional annotation analysis

Bowen Tang, Weihua Meng, Sara Hägg, Stephen Burgess, Xia Jiang (Lead / Corresponding author)

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
67 Downloads (Pure)

Abstract

To understand a putative causal link for depression and pain, we retrieved summary statistics from genome-wide association studies conducted for pain at 7 different body sites (N = 151,922-226,683) and major depression disorder (MDD, N case/control = 246,363/561,190). We conducted a bidirectional Mendelian randomization analysis using distinct genome-wide association studies-identified single nucleotide polymorphisms for each trait as instrumental variables and performed several sensitivity analyses to verify Mendelian randomization assumptions. We also conducted functional annotation analysis using 396 tissue-specific annotations from the roadmap project. Across 7 different body sites, genetic predisposition to depression was associated with pain at the neck/shoulder (odds ratio [OR] = 1.08 per one log-unit increase in depression risk, 95% confidence interval [CI]: 1.06-1.10), back (OR = 1.05, 95% CI: 1.04-1.07), abdominal/stomach (OR = 1.03, 95% CI: 1.02-1.04), as well as headache (OR = 1.10, 95% CI: 1.07-1.12), but not with pain on the face, hip, and knee. In the reverse direction, genetically instrumented multisite chronic pain (OR = 1.78 per one increment in the number of pain site, 95% CI: 1.51-2.11) and headache (OR = 1.55 per one log-unit increase in headache risk, 95% CI = 1.13-2.10) were associated with MDD. Functional annotation analysis showed differential clustering patterns where depression clustered closely with headache and neck/shoulder pain, exhibiting substantial brain tissue enrichment. Our study indicates that depression is a causal risk factor for headache and pain localized at neck/shoulder, back, and abdominal/stomach, rather than pain at face, hip, and knee, and suggests common neurological pathologies underlying the development of depression, headache, and neck/shoulder pain.

Original languageEnglish
Pages (from-to)e40-e48
Number of pages9
JournalPain
Volume163
Issue number1
Early online date12 Apr 2021
DOIs
Publication statusPublished - 1 Jan 2022

Keywords

  • Depression/genetics
  • Genetic Predisposition to Disease
  • Genome-Wide Association Study
  • Humans
  • Mendelian Randomization Analysis
  • Pain/genetics
  • Polymorphism, Single Nucleotide
  • Causal inference
  • Depression
  • Functional annotation analysis
  • Pain
  • Genetics
  • Mendelian randomization study

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