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The Relationship Between Smoking and Inflammation in Depression.
Published online by Cambridge University Press: 15 April 2020
Abstract
There is now an extensive body of data showing that depression is associated with a chronic low-grade inflammation. The obvious question is “What are the sources of this inflammation?” and “Could smoking be one of them?”
The aim of the study is to investigate the association between depression and inflammation, and to highlight the role of smoking in this process.
The study included 65 depressed patients and 30 healthy controls. Blood samples of both groups were used for the measurement of the high-sensitivity CRP (hs-CRP) and the interleukin 6 (IL6).
The mean value of hs-CRP was 2.02 mg/L among depressed patients and 1.42 mg/L among healthy controls (p=0.198).
Higher values of hs-CRP (>=3mg/L) were found among depressed patients (20%) than among healthy controls (3.3%) (p=0.033).
The mean value of IL6 was 4.12 ng/ml among depressed patients and 2.68 ng/ml among healthy controls (p=0.008).
Higher values of IL6 (>=4ng/ml) were found among depressed patients (29.2%) than among healthy controls (3.3%) (p=0.004).
The table below resume the relation between smoking and the elevation of inflammatory markers.
The causal relationship between smoking and depression is complex. Cigarette smoking increases the levels of inflammatory markers but did it leads to depression? Or did the depression increases smoking behavior? Or is there shared vulnerability factors for the both?
- Type
- Article: 1570
- Information
- European Psychiatry , Volume 30 , Issue S1: Abstracts of the 23rd European Congress of Psychiatry , March 2015 , pp. 1
- Copyright
- Copyright © European Psychiatric Association 2015
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