Multimodal covarying brain patterns mediate genetic and psychological contributions to individual differences in pain sensitivity

Copyright © 2023 International Association for the Study of Pain..

ABSTRACT: Individuals vary significantly in their pain sensitivity, with contributions from the brain, genes, and psychological factors. However, a multidimensional model integrating these factors is lacking due to their complex interactions. To address this, we measured pain sensitivity (ie, pain threshold and pain tolerance) using the cold pressor test, collected magnetic resonance imaging (MRI) data and genetic data, and evaluated psychological factors (ie, pain catastrophizing, pain-related fear, and pain-related anxiety) from 450 healthy participants with both sexes (160 male, 290 female). Using multimodal MRI fusion methods, we identified 2 pairs of covarying structural and functional brain patterns associated with pain threshold and tolerance, respectively. These patterns primarily involved regions related to self-awareness, sensory-discriminative, cognitive-evaluative, motion preparation and execution, and emotional aspects of pain. Notably, pain catastrophizing was negatively correlated with pain tolerance, and this relationship was mediated by the multimodal covarying brain patterns in male participants only. Furthermore, we identified an association between the single-nucleotide polymorphism rs4141964 within the fatty acid amide hydrolase gene and pain threshold, mediated by the identified multimodal covarying brain patterns across all participants. In summary, we suggested a model that integrates the brain, genes, and psychological factors to elucidate their role in shaping interindividual variations in pain sensitivity, highlighting the important contribution of the multimodal covarying brain patterns as important biological mediators in the associations between genes/psychological factors and pain sensitivity.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:165

Enthalten in:

Pain - 165(2024), 5 vom: 01. Apr., Seite 1074-1085

Sprache:

Englisch

Beteiligte Personen:

Zhang, Huijuan [VerfasserIn]
Zhao, Lei [VerfasserIn]
Lu, Xuejing [VerfasserIn]
Peng, Weiwei [VerfasserIn]
Zhang, Li [VerfasserIn]
Zhang, Zhiguo [VerfasserIn]
Hu, Li [VerfasserIn]
Cao, Jin [VerfasserIn]
Tu, Yiheng [VerfasserIn]

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Journal Article

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Date Completed 16.04.2024

Date Revised 16.04.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1097/j.pain.0000000000003103

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM364348100