Serum Protein Profiling Reveals a Decrease in Apolipoprotein A-IV During a Clinical Depressive Mood State
Year: 2023
Type: article
Study design: Observational Study
Abstract: Purpose: Depressive mood is a major psychiatric symptom that causes serious disturbances in daily life. Unlike physical symptoms, psychiatric symptoms are more difficult to evaluate objectively. Therefore, we aimed to discover biomarkers that reflect changes in serum protein metabolism during a clinical depressive mood. Methods: Serum protein profiling was conducted in participants who were not experiencing a current depressive episode (healthy individuals and patients in remission). Serum proteins were identified and quantified using liquid chromatography–tandem mass spectrometry. Differentially expressed proteins with a p -value < 0.05 were selected, and candidate biomarkers were verified using multiple reaction monitoring analysis for absolute quantification. Results: Apolipoprotein A-IV levels were lower in the group with a current episode of depression than in the remission and healthy control groups. Further, fibronectin levels were also lower in the group with a current episode of depression than in the healthy control group but not in the remission group. Conclusion: We found that apolipoprotein A-IV-mediated inflammation is involved in clinical depressive moods, possibly by inducing neurological changes in the brain. Therefore, apolipoprotein A-IV and fibronectin levels may be explored as potentially novel biomarkers for detecting a current episode of depression. Keywords: biomarkers, depression, liquid chromatography–tandem mass spectrometry, inflammation, neuroinflammation, serum proteomics
Source: Journal of Inflammation Research
DOI: 10.2147/jir.s419176
Language: English
Subfield: Biological Psychiatry
Field: Neuroscience
Domain: Life Sciences
Open Access status: gold
Estimated APC paid: $2,836
Awards: G4155237291, G6023606286
OpenAlex ID: W4386460102