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Association Between Interleukin-6 and Neurocognitive Performance as a Function of Self-Reported Lifetime Marijuana Use in a Community Based Sample of African American Adults
Published online by Cambridge University Press: 22 September 2014
Abstract
The purpose of the current study was to determine if self-reported lifetime marijuana use moderates the relationship between interleukin-6 (IL-6) and neurocognitive performance. Participants included 161 African American adults (50.3% women), with a mean age of 45.24 (SD=11.34). Serum was drawn upon entry into the study and participants completed a demographic questionnaire, which included drug use history, and a battery of neuropsychological tests. Using multiple regression analyses and adjusting for demographic covariates, the interaction term comprised of IL-6 and self-reported lifetime marijuana use was significantly associated with poorer performance on the Written (β=−.116; SE=.059; p=.049) and Oral trials (β=−.143; SE=.062; p=.022) of the Symbol Digit Modalities Test, as well as the Trail Making Test trial A (β=.157; SE=.071; p=.028). Current findings support previous literature, which presents the inverse relationship between IL-6 and neurocognitive dysfunction. The potential protective properties of marijuana use in African Americans, who are at increased risk for inflammatory diseases, are discussed. (JINS, 2014, 20, 773–783)
- Type
- Research Articles
- Information
- Journal of the International Neuropsychological Society , Volume 20 , Issue 8 , September 2014 , pp. 773 - 783
- Copyright
- Copyright © The International Neuropsychological Society 2014
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