Serum Inflammatory Cytokines and Depression in Coronary Artery Disease
نویسندگان
1 1Department of Community Health, University Putra Malaysia, Kuala Lumpur, Malaysia
2 Department of Modern Sciences and Technologies, Mashhad University of Medical Sciences, Mashhad, IR Iran
3 Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, IR Iran
4 Department of Modern Sciences and Technologies, Mashhad University of Medical Sciences, Mashhad, IR Iran
5 Department of Biology, Biochemistry Unit, Alzahra University, Tehran, IR Iran
6 Division of Medical Education, Brighton and Sussex Medical School, Brighton, UK
7 Department of Community Health, University Putra Malaysia, Kuala Lumpur, Malaysia
8 Department of Modern Sciences and Technologies, Mashhad University of Medical Sciences, Mashhad, IR Iran
9 Department of Cardiology, Ghaem Educational Hospital, Mashhad University of Medical Sciences, Mashhad, IR Iran
10 Department of Biostatistics, School of Health, Mashhad University of Medical Sciences, Mashhad, IR Iran
11 Department of Biology-Biochemistry, Payame Noor University of Mashhad, Mashhad, IR Iran
12 Cardiovascular Research Center, Mashhad University of Medical Sciences, Mashhad, IR Iran
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چکیده
Severe depression may be accompanied by immune dysregulation and is also associated with increased risk of coronary artery disease (CAD).Objectives: We investigated serum levels of 10 cytokines and their relationship with depression in patients with cardiovascular diseases as well as healthy subjects in northeast of Iran.Patients and Methods: The study was carried out on 462 subjects (120 healthy subjects and 342 candidates undergoing angiography). The healthy subjects were referred for routine annual checkups or pre-employment examinations; they did not have clinically evident CAD. A questionnaire was used to obtain demographic data and the Beck depression inventory (BDI) was applied to assess depression. The Evidence Investigator® platform was used for cytokines assays for IL-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, TNF-α, MCP-1 and IFN-γ, using sandwich chemiluminescent method. The statistical analysis was performed using SPSS version 11.5.Results: The mean age was 53.3 ± 11.5, 54.8 ± 11.3, and 59.5 ± 11.3 in healthy, angiography (-), and angiography (+) subjects, respectively (P < 0.05). There were significant differences in serum levels of IL-4, IL-6, IL-10, and MCP-1 cytokines, comparing subjects with CAD and healthy persons (P < 0.05). When all subjects were divided to with and without depression regardless of their cardiovascular status, there was a significant difference in serum levels of IL-8 and IL-6 between the groups (P < 0.05). When the subgroup with features of CAD was selected and divided to those with and without depression, there was also a significant difference in serum levels of IL-8 and TNF-α (P < 0.05).Conclusions: The positive interaction between depression and CAD was probably mediated by inflammatory mechanisms.
