ArticleDrug and alcohol dependence2022
Does body mass index explain the apparent anti-inflammatory effects of cannabis use? Results From a cohort study of sexual and gender minority youth.
Article in Drug and alcohol dependence, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundCannabis use has been linked to lower systemic inflammation, but the pathways connecting cannabis use and systemic inflammation are unclear. Here we investigate whether body mass index (BMI) accounts for the association between cannabis use and systemic inflammation in a cohort of sexual and gender minority youth assigned male at birth (n = 712).
methodsSubstance use was assessed across six biannual visits. Cannabis use was measured using the Cannabis Use Disorders Identification Test-Revised (CUDIT-R) and urine screening for tetrahydrocannabinol (THC). At the final visit, BMI was measured, and a plasma sample was collected to measure biomarkers of systemic inflammation: C-reactive protein (CRP), interleukin-6, interleukin-1β, and tumor necrosis factor-α. Inflammatory markers were log
resultsIn models including all covariates except BMI, greater cumulative CUDIT-R score was associated with lower CRP (β = -0.14; 95% CI: -0.22,-0.05) and lower interleukin-6 (β = -0.12; 95% CI: -0.21,-0.04). These associations were attenuated when BMI was added to the model. Mediation analyses revealed an indirect effect of cumulative CUDIT-R score on CRP (β = -0.08; 95% CI: -0.12,-0.05) and interleukin-6 (β = -0.08; 95% CI: -0.12,-0.05), mediated by BMI. Models using urine THC or self-reported frequency to operationalize cannabis use produced similar results. We found no clear evidence that HIV status moderates these associations.
conclusionsThese results suggest that BMI may partially account for the apparent anti-inflammatory effects of cannabis use. Research on the mechanisms linking cannabis use, adiposity, and inflammation may uncover promising intervention targets.
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