Abstract

The aim of this work was to investigate differences between depressed subjects (PG) and non-depressed healthy control participants (HCG) with regard to fatigue dimensions and inflammation. For this purpose, 43 participants in the PG and 51 participants in the HCG were included in the study. IL-6, IL-1β, TNF-α, IFN-γ, and CRP were assessed in venous blood samples. Fatigue and depression were assessed using the FIS-D and BDI-FS questionnaires. Main results showed higher BDI-FS values in PG. Moreover, PG showed mean differences for fatigue dimensions when compared to the HCG. For the pro-inflammatory markers, a moderate group effect was found between PG and HCG which was mainly caused by IL-6. Correlations between TNF-α and BDI-FS, TNF-α and cognitive fatigue, TNF-α and psychosocial fatigue were found within the PG. In the HCG, correlations were found between IL-6, TNF-α and somatic fatigue, as well as IL-6 and cognitive fatigue. Significant correlations were found between the psychological variables in both groups. All results were controlled for the confounding variables gender, age, BMI and multiple comparisons. These results suggest the presence of inflammation in both depression and fatigue. However, each correlates with different pro-inflammatory parameters, suggesting a biological heterogeneity.

Details

Title
Pro-inflammatory markers and fatigue in patients with depression: A case-control study
Author
Pedraz-Petrozzi Bruno 1 ; Neumann, Elena 2 ; Gebhard, Sammer 3 

 Justus-Liebig University, Cognitive Neurosciences at the Center for Psychiatry and Psychotherapy, Giessen, Germany (GRID:grid.8664.c) (ISNI:0000 0001 2165 8627) 
 Justus-Liebig University, Internal Medicine and Rheumatology, Campus Kerckhoff, Bad Nauheim, Germany (GRID:grid.8664.c) (ISNI:0000 0001 2165 8627) 
 Justus-Liebig University, Cognitive Neurosciences at the Center for Psychiatry and Psychotherapy, Giessen, Germany (GRID:grid.8664.c) (ISNI:0000 0001 2165 8627); Justus-Liebig University, Faculty of Psychology and Sports Science, Giessen, Germany (GRID:grid.8664.c) (ISNI:0000 0001 2165 8627) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2412192641
Copyright
© The Author(s) 2020. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.