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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2009-12-16
pubmed:abstractText
We previously demonstrated that select cytokine gene polymorphisms in interleukin (IL)-8 are a significant predictor of pain and analgesia in patients with lung cancer. This study explores the role of 13 potentially functional polymorphisms in cytokine genes, including IL-1beta, IL-6, IL-8, IL-10, IL-18, tumor necrosis factor-alpha, and nuclear factor kappa-B subunit 1, in pain severity in patients with pancreatic cancer. We evaluated a series of patients with histologically confirmed adenocarcinoma of the pancreas (n=484), who had completed a self-administered survey of pain before initiating any cancer treatment. DNA (n=156) available for a subset of white patients was assayed and assessed for association with pain severity. Results showed that 26% (128 of 484) reported experiencing severe pain (score of >7 on a 0-10 scale). Severe pain varied by the stage of disease (odds ratio [OR] Stage II=4.02, 95% confidence interval (CI)=1.07, 15.07; Stage III=5.02, 95% CI=1.28, 19.61; Stage IV=6.90, 95% CI=1.96, 24.29), ethnicity (OR non-Hispanic blacks=3.67; 95% CI=1.44, 9.38), reports of depressed mood (OR=1.94; 95% CI=1.09, 3.43), and female sex (OR=1.78; 95% CI=1.04, 3.05). Controlling for these covariates, IL8-251T/A (OR=2.43, 95% CI=1.3, 4.7, P<0.009) significantly predicted severe pain in a subset of white patients. When we adjusted for reported analgesic use, we found that IL8-251T/A persisted as a predictor for severe pain, with carriers of TT and AT genotypes having more than a threefold risk (OR=3.23, 95% CI=1.4, 4.7) for severe pain relative to the AA genotypes. We provide preliminary evidence of the role of IL-8 in the severity of pain in pancreatic cancer patients. Additional studies are needed in larger cohorts of patients.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1873-6513
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
894-902
pubmed:dateRevised
2011-9-26
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Genetic and nongenetic covariates of pain severity in patients with adenocarcinoma of the pancreas: assessing the influence of cytokine genes.
pubmed:affiliation
Department of Epidemiology, Division of Cancer Prevention, The University of Texas M.D. Anderson Cancer Center, Houston, Texas 77030-4009, USA. creyes@mdanderson.org
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Research Support, N.I.H., Extramural