PMID- 34575258 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231101 IS - 2077-0383 (Print) IS - 2077-0383 (Electronic) IS - 2077-0383 (Linking) VI - 10 IP - 18 DP - 2021 Sep 14 TI - Biomarkers of Post-COVID Depression. LID - 10.3390/jcm10184142 [doi] LID - 4142 AB - The COVID-19 pandemic is spreading around the world and 187 million people have already been affected. One of its after-effects is post-COVID depression, which, according to the latest data, affects up to 40% of people who have had SARS-CoV-2 infection. A very important issue for the mental health of the general population is to look for the causes of this complication and its biomarkers. This will help in faster diagnosis and effective treatment of the affected patients. In our work, we focused on the search for major depressive disorder (MDD) biomarkers, which are also present in COVID-19 patients and may influence the development of post-COVID depression. For this purpose, we searched PubMed, Scopus and Google Scholar scientific literature databases using keywords such as 'COVID-19', 'SARS-CoV-2', 'depression', 'post-COVID', 'biomarkers' and others. Among the biomarkers found, the most important that were frequently described are increased levels of interleukin 6 (IL-6), soluble interleukin 6 receptor (sIL-6R), interleukin 1 beta (IL-1beta), tumor necrosis factor alpha (TNF-alpha), interferon gamma (IFN-gamma), interleukin 10 (IL-10), interleukin 2 (IL-2), soluble interleukin 2 receptor (sIL-2R), C-reactive protein (CRP), Monocyte Chemoattractant Protein-1 (MCP-1), serum amyloid a (SAA1) and metabolites of the kynurenine pathway, as well as decreased brain derived neurotrophic factor (BDNF) and tryptophan (TRP). The biomarkers identified by us indicate the etiopathogenesis of post-COVID depression analogous to the leading inflammatory hypothesis of MDD. FAU - Lorkiewicz, Piotr AU - Lorkiewicz P AUID- ORCID: 0000-0003-2009-9485 AD - Department of Psychiatry, Medical University of Bialystok, Plac Brodowicza 1, 16-070 Choroszcz, Poland. FAU - Waszkiewicz, Napoleon AU - Waszkiewicz N AUID- ORCID: 0000-0002-7021-5133 AD - Department of Psychiatry, Medical University of Bialystok, Plac Brodowicza 1, 16-070 Choroszcz, Poland. LA - eng GR - SUB/1/DN/21/001/1147/the Medical University of Bialystok/ PT - Journal Article PT - Review DEP - 20210914 PL - Switzerland TA - J Clin Med JT - Journal of clinical medicine JID - 101606588 PMC - PMC8470902 OTO - NOTNLM OT - COVID-19 OT - biomarkers OT - cytokines OT - depression OT - kynurenine OT - post-COVID COIS- The authors declare no conflict of interest. EDAT- 2021/09/29 06:00 MHDA- 2021/09/29 06:01 PMCR- 2021/09/14 CRDT- 2021/09/28 01:15 PHST- 2021/07/28 00:00 [received] PHST- 2021/09/04 00:00 [revised] PHST- 2021/09/10 00:00 [accepted] PHST- 2021/09/28 01:15 [entrez] PHST- 2021/09/29 06:00 [pubmed] PHST- 2021/09/29 06:01 [medline] PHST- 2021/09/14 00:00 [pmc-release] AID - jcm10184142 [pii] AID - jcm-10-04142 [pii] AID - 10.3390/jcm10184142 [doi] PST - epublish SO - J Clin Med. 2021 Sep 14;10(18):4142. doi: 10.3390/jcm10184142.