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Targeted genotyping identifies susceptibility locus in brain-derived neurotrophic factor gene for chronic postsurgical pain.
Anesthesiology 128, 587-597 (2018)
BACKGROUND: The purpose of this study was to evaluate the association between single-nucleotide polymorphisms and chronic postsurgical pain. METHODS: Using GoldenGate genotyping assays, we genotyped 638 polymorphisms within 54 pain-related genes in 1,152 surgical patients who were enrolled in our Persistent Pain after Surgery Study. Patients were contacted by phone to determine whether they had chronic postsurgical pain at 12 months. Polymorphisms identified were validated in a matched cohort of 103 patients with chronic postsurgical pain and 103 patients who were pain free. The functions of targeted polymorphisms were tested in an experimental plantar incisional nociception model using knock-in mice. RESULTS: At 12 months after surgery, 246 (21.4%) patients reported chronic postsurgical pain. Forty-two polymorphisms were found to be associated with chronic postsurgical pain, 19 decreased the risk of pain, and 23 increased the risk of pain. Patients carrying allele A of rs6265 polymorphism in brain-derived neurotrophic factor (BDNF) had a lower risk of chronic postsurgical pain in the discovery and validation cohorts, with an adjusted odds ratio (95% CI) of 0.62 (0.43 to 0.90) and 0.57 (0.39 to 0.85), respectively. Age less than 65 yr, male sex, and prior history of pain syndrome were associated with an increased risk of pain. Genetic polymorphisms had higher population attributable risk (7.36 to 11.7%) compared with clinical risk factors (2.90 to 5.93%). Importantly, rs6265 is a substitution of valine by methionine at amino acid residue 66 (Val66Met) and was associated with less mechanical allodynia in BDNF mice compared with BDNF group after plantar incision. CONCLUSIONS: This study demonstrated that genetic variation of BDNF is associated with an increased risk of chronic postsurgical pain.
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Publication type
Article: Journal article
Document type
Scientific Article
Language
english
Publication Year
2018
Prepublished in Year
2017
HGF-reported in Year
2017
ISSN (print) / ISBN
0003-3022
e-ISSN
1528-1175
Journal
Anesthesiology
Quellenangaben
Volume: 128,
Pages: 587-597
Publisher
Lippincott Williams & Wilkins
Reviewing status
Peer reviewed
Institute(s)
Institute of Human Genetics (IHG)
POF-Topic(s)
30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Research field(s)
Genetics and Epidemiology
PSP Element(s)
G-500700-001
PubMed ID
29120944
Erfassungsdatum
2017-11-16