RT Journal Article SR Electronic T1 Serum Cytokines and Cancer in Involuntary Weight Loss JF Journal of Investigative Medicine JO J Investig Med FD BMJ Publishing Group Ltd SP 827 OP 829 DO 10.2310/JIM.0b013e31825148b1 VO 60 IS 5 A1 Cristian Baicus A1 Simona Caraiola A1 Mihai Rimbas A1 Ruxandra Patrascu A1 Anda Baicus YR 2012 UL http://hw-f5-jim.highwire.org/content/60/5/827.abstract AB Background Tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and IL-6 may be associated with involuntary weight loss in patients with and without cancer. However, results of previous studies have been conflicting. We evaluated patients who had involuntary weight loss to determine cytokine levels and the correlation of these cytokines with weight loss, the association with inflammation, and the potential for use in cancer diagnosis.Materials and Methods In 290 consecutive patients with involuntary weight loss (74 patients [26%] with cancer and 216 patients [74%] without cancer), erythrocyte sedimentation rate (ESR), and serum levels of C-reactive protein, TNF-α, IL-1β, and IL-6 were determined.Results Higher ESR and levels of C-reactive protein, TNF-α, IL-1β, and IL-6 were associated with cancer. The levels of TNF-α, IL-1β, and IL-6 did not correlate with the amount of weight loss. In multivariable analysis, only ESR was associated with cancer.Conclusions In patients with involuntary weight loss, TNF-α, IL-1β, and IL-6 were associated with cancer but were not weight loss mediators.