COMT moderates the relation of daily maladaptive coping and pain in fibromyalgia

Patrick H. Finan, Alex J. Zautra, Mary Davis, Kathryn Lemery, Jonathan Covault, Howard Tennen

Research output: Contribution to journalArticle

51 Scopus citations

Abstract

Forty-five women with fibromyalgia (FM) engaged in a 30-day electronic diary assessment, recording daily ratings of pain and 2 forms of maladaptive coping: pain catastrophizing and pain attention. Participants were genotyped for the val 158met single nucleotide polymorphism (rs4680) in the catechol-O-methyltransferase (COMT) gene. COMT genotype moderated the daily relations of both maladaptive coping processes and pain. FM women with the homozygous met/met genotype evidenced more pain on days when pain catastrophizing was elevated relative to heterozygous and homozygous val 158 carriers. FM women with the homozygous met/met genotype evidenced more pain on days when pain attention was elevated relative to those with the homozygous val/val genotype. Evidence is presented to suggest that these are independent effects. The findings provide multimeasure and multimethod support for genetic moderation of a maladaptive coping and pain process, which has been previously characterized in a sample of postoperative shoulder pain patients. Further, the findings advance our understanding of the role of COMT in FM, suggesting that genetic variation in the val 158met polymorphism may affect FM pain through pathways of pain-related cognition. This study examined 2 forms of maladaptive coping: pain catastrophizing and pain attention. The findings provide multimeasure and multimethod support for genetic moderation of a maladaptive coping and pain process and suggest that genetic variation in the val 158met polymorphism may affect fibromyalgia pain through pathways of pain-related cognition.

Original languageEnglish (US)
Pages (from-to)300-307
Number of pages8
JournalPain
Volume152
Issue number2
DOIs
StatePublished - Feb 2011

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Keywords

  • Catastrophizing
  • Chronic pain
  • Coping
  • Fibromyalgia
  • Genetics

ASJC Scopus subject areas

  • Clinical Neurology
  • Anesthesiology and Pain Medicine
  • Neurology
  • Pharmacology

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