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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: Brain Behav Immun Health. 2020 Jun 5;6:100090. doi: 10.1016/j.bbih.2020.100090

Figure 1.

Figure 1.

Levels of current anhedonia symptoms were significantly associated with increased endotoxin-stimulated levels of IL-17A (A), IL-17F (B), IL-21(C), IL-22 (D), IL-23 (E), IL-25 (F), IL-31 (G), IL-33 (H), IFNγ (I), TNF-α (J), and sCDL40 (K) prior to the tests of robustness. When we statistically controlled for the influence of participants’ demographic (age, sex, ethnicity, income) and physiological (body temperature, BMI) characteristics, current symptoms of depression and anxiety, and the time of day of the sample collection, the significant results were maintained for IL-17F, IL-21, IL-22, IL-25, IL-31, IL-33, IFNγ, and sCDL40. Values for stimulated cytokines were normalized to the total protein levels.