title: Plasma inflammatory cytokine response to surgical trauma in chronic depressed patients.
abstract: We investigated inflammatory cytokine response in chronic depressed patients during abdominal surgery. Twenty-five major depressed patients (Group D) and twenty-five patients (Group C) as the control were studied. Plasma interleukin 6 (IL-6), interleukin 8 (IL-8) and tumour necrosis factor-alpha (TNF-alpha) concentrations were measured before and at 15 min after induction of anesthesia, the end of surgery, 24 h and 3 days after the operation. Plasma IL-6 concentrations in Group D at the end of the operation and 24 h after surgery were significantly lower than those of Group C. The plasma IL-6 concentration (87.1+/-55.3 pg/ml) of patients scoring more than 18 points in the Hamilton depression-rating score at the end of the operation was significantly higher than 57.5+/-76.7 pg/ml of patients scoring less than 18 points. Plasma IL-8 concentration (6.1+/-3.2 pg/ml) in Group D at the end of the operation was significantly lower than 8.7+/-4.2 pg/ml of Group C. We conclude that plasma IL-6 and IL-8 response to surgical trauma is inhibited in chronic depressed patients. The IL-6 response to surgical trauma is depending on the clinical state of depression.
authors.affiliation: Department of Anesthesiology, University of Hirosdaki School of Medicine, Hirosaki National Hospital, 5 Zaifucho, Hirosaki 036, Aomori, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Kudoh
authors.forename: H
authors.initials: H
authors.lastname: Katagai
authors.forename: T
authors.initials: T
authors.lastname: Takazawa
mesh_terms: D000328:Adult; D000758:Anesthesia / Q000009:adverse effects; D016207:Cytokines / Q000097:blood*; D003863:Depression / Q000097:blood*; D004305:Dose-Response Relationship, Drug; D005260:Female; D013502:General Surgery; D006801:Humans; D015850:Interleukin-6 / Q000097:blood; D016209:Interleukin-8 / Q000097:blood; D007962:Leukocytes / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000601:surgery; D013997:Time Factors; D014409:Tumor Necrosis Factor-alpha / Q000096:biosynthesis
chemical_list: D016207:Cytokines; D015850:Interleukin-6; D016209:Interleukin-8; D014409:Tumor Necrosis Factor-alpha