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Depression, GABA, and Age Correlate with Plasma Levels of Inflammatory Markers
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Birnir: Molecular Physiology and Neuroscience.ORCID iD: 0000-0002-7116-0939
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Ekselius: Psychiatry.ORCID iD: 0000-0001-7876-7779
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Neuroscience, Birnir: Molecular Physiology and Neuroscience.ORCID iD: 0000-0002-4717-1558
Uppsala University, Science for Life Laboratory, SciLifeLab. Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Faculty of Medicine, Department of Immunology, Genetics and Pathology, Molecular tools.ORCID iD: 0000-0003-2103-4253
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2019 (English)In: International Journal of Molecular Sciences, ISSN 1422-0067, E-ISSN 1422-0067, Vol. 20, no 24, article id 6172Article in journal (Refereed) Published
Abstract [en]

Immunomodulation is increasingly being recognised as a part of mental diseases. Here, we examined whether levels of immunological protein markers changed with depression, age, or the inhibitory neurotransmitter gamma-aminobutyric acid (GABA). An analysis of plasma samples from patients with a major depressive episode and control blood donors (CBD) revealed the expression of 67 inflammatory markers. Thirteen of these markers displayed augmented levels in patients compared to CBD. Twenty-one markers correlated with the age of the patients, whereas 10 markers correlated with the age of CBD. Interestingly, CST5 and CDCP1 showed the strongest correlation with age in the patients and CBD, respectively. IL-18 was the only marker that correlated with the MADRS-S scores of the patients. Neuronal growth factors (NGFs) were significantly enhanced in plasma from the patients, as was the average plasma GABA concentration. GABA modulated the release of seven cytokines in anti-CD3-stimulated peripheral blood mononuclear cells (PBMCs) from the patients. The study reveals significant changes in the plasma composition of small molecules during depression and identifies potential peripheral biomarkers of the disease.

Place, publisher, year, edition, pages
MDPI, 2019. Vol. 20, no 24, article id 6172
Keywords [en]
GABAA receptor, inflammation, mental health
National Category
Psychiatry
Identifiers
URN: urn:nbn:se:uu:diva-401785DOI: 10.3390/ijms20246172ISI: 000506840100066PubMedID: 31817800OAI: oai:DiVA.org:uu-401785DiVA, id: diva2:1383895
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Swedish Research CouncilSwedish Society of MedicineAvailable from: 2020-01-08 Created: 2020-01-08 Last updated: 2020-03-05Bibliographically approved

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Bhandage, Amol K.Cunningham, Janet L.Jin, ZheShen, QiujinKorol, SergiySyk, MikaelaKamali-Moghaddam, MasoodEkselius, LisaBirnir, Bryndis
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Birnir: Molecular Physiology and NeuroscienceEkselius: PsychiatryScience for Life Laboratory, SciLifeLabMolecular tools
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