Abstract：
BACKGROUND:Mood disorders are particularly common, disabling conditions. Diagnosis can be difficult as it may involve different pathophysiological assumptions. This could explain why such disorders are resistant to treatment. The retina is part of the central nervous system and shares a common embryonic origin with the brain. Optical coherence tomography (OCT) is an imaging technique for analysing the different layers of the retina. We reviewed studies that examined the retina with OCT in mood disorders. METHODS:We conducted Pubmed search and additional manual research based on the bibliography in each of selected articles. We found and analysed 11 articles relevant to our subject. RESULTS:This literature review confirms that it is possible to use OCT to detect neurodegeneration and neuroinflammation in mood disorders. Their impact is thought to depend on the duration and severity of the disease, and whether it is in acute or chronic stage. The differences seen in studies dealing with depression and those looking at bipolar disorder may reflect the particular characteristics of each disorder. A number of OCT parameters can be proposed as biomarkers of active or chronic inflammation and neurodegeneration. Markers of predisposition to an at-risk mental state are also suggested. LIMITATIONS:The main limitation is selection bias, studies including more varied population would help to confirm and precise these results. CONCLUSION:OCT is thus a particularly promising tool for evaluating some of the etiopathogenetic mechanisms involved in mood disorders. The combination with other approaches could help to find more specific biomarkers.
journal_name
Prog Neuropsychopharmacol Biol Psychiatryauthors
Clémence-Fau M,Schwan R,Angioi-Duprez K,Laprévote V,Schwitzer Tdoi
10.1016/j.pnpbp.2020.110080subject
Has Abstractpub_date
2020-08-19 00:00:00pages
110080eissn
0278-5846issn
1878-4216pii
S0278-5846(20)30396-1pub_type
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