Abstract:
Purpose:The INTERMED instrument, which was developed to measure patient's biopsychosocial (BPS) complexity, represents a powerful diagnostic and therapeutic tool. Epigenetic changes are the interface between signals from the environment and genetic modifications, affecting gene expression, in particular, by DNA methylation of CpG dinucleotides in promotor regions of the corresponding genes. The brain-derived neurotrophic factor (BDNF) gene plays a crucial role in the central sensitization (CS) of pain. In this study, we hypothesized that chronic pain modifies the methylation levels of the BDNF gene in a manner that is interconnected with the BPS status. Patients and Methods:Fifty-eight chronic musculoskeletal pain patients (CMSP) were enrolled in the study. DNA was extracted from blood samples, the methylation levels of 13 CpG sites in the BDNF promoter were measured by pyrosequencing, and association studies with various patient parameters and the INTERMED scores were performed. Results:Interestingly, a negative correlation (-0.40) was found between the total INTERMED scores and the average CpG methylation values of the BDNF gene, but no correlation was observed with the severity of pain, degree of anxiety, depression, or kinesiophobia and catastrophism. Moreover, the association was independent of age, sex and level of comorbidities. Conclusion:This result shows that CMSP, in association with its biopsychosocial context, epigenetically decreases the degree of methylation of the BDNF promoter and should therefore increase the level of BDNF transcription. It also suggests a role of the INTERMED tool to detect a relationship between the BPS complexity and the epigenetic control of a target gene. The possible upregulation of BDNF expression might be, at least in part, the signal for chronic pain-induced central sensitization (CS). This could partly explain why patients with a higher level of complexity feel more pain than those with lower complexity.
journal_name
J Pain Resjournal_title
Journal of pain researchauthors
Paoloni-Giacobino A,Luthi F,Stenz L,Le Carré J,Vuistiner P,Léger Bdoi
10.2147/JPR.S251782subject
Has Abstractpub_date
2020-06-02 00:00:00pages
1289-1296issn
1178-7090pii
251782journal_volume
13pub_type
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pub_type: 杂志文章
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journal_title:Journal of pain research
pub_type: 杂志文章,评审
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pub_type: 杂志文章
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更新日期:2010-09-06 00:00:00
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journal_title:Journal of pain research
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2011-01-01 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2015-06-10 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
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更新日期:2013-01-01 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
doi:10.2147/JPR.S129585
更新日期:2017-02-24 00:00:00
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journal_title:Journal of pain research
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2018-09-27 00:00:00
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