Cited by 31Bipolar Disorder and TreatmentRNA regulation and diseaseTreatment of Major Depression

A Game Changer for Bipolar Disorder Diagnosis Using RNA Editing-Based Biomarkers

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Salvetat, Nicolas, Checa-Robles, Francisco Jesus, Patel, Vipul, Cayzac, Christopher, Dubuc, Benjamin, Chimienti, Fabrice, Abraham, Jean-Daniel, Dupré, Pierrick +6 more·2022·Translational Psychiatry

Abstract

In clinical practice, differentiating Bipolar Disorder (BD) from unipolar depression is a challenge due to the depressive symptoms, which are the core presentations of both disorders. This misdiagnosis during depressive episodes results in a delay in proper treatment and a poor management of their condition. In a first step, using A-to-I RNA editome analysis, we discovered 646 variants (366 genes) differentially edited between depressed patients and healthy volunteers in a discovery cohort of 57 participants. After using stringent criteria and biological pathway analysis, candidate biomarkers from 8 genes were singled out and tested in a validation cohort of 410 participants. Combining the selected biomarkers with a machine learning approach achieved to discriminate depressed patients (n = 267) versus controls (n = 143) with an AUC of 0.930 (CI 95% [0.879-0.982]), a sensitivity of 84.0% and a specificity of 87.1%. In a second step by selecting among the depressed patients those with unipolar depression (n = 160) or BD (n = 95), we identified a combination of 6 biomarkers which allowed a differential diagnosis of bipolar disorder with an AUC of 0.935 and high specificity (Sp = 84.6%) and sensitivity (Se = 90.9%). The association of RNA editing variants modifications with depression subtypes and the use of artificial intelligence allowed developing a new tool to identify, among depressed patients, those suffering from BD. This test will help to reduce the misdiagnosis delay of bipolar patients, leading to an earlier implementation of a proper treatment.

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Authors
Salvetat, N., Checa-Robles, F. J., Patel, V., Cayzac, C., Dubuc, B., Chimienti, F., Abraham, J.-D., Dupré, P., Vetter, D., Méreuze, S., Lang, J.-P., Kupfer, D. J., Courtet, P., & Weissmann, D.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of Pittsburgh (US)
  • Hôpital Lapeyronie (FR)
Corresponding author
Weissmann, Dinah
Venue
Translational Psychiatry
Published
2022-05-04
Volume
12
Issue
1
Pages
182-182
ISSN
2158-3188 (ISSN-L)
OpenAlex
W4225393382
Cited by
31
References
88
Citations by year
2026: 5 · 2025: 10 · 2024: 10 · 2023: 5 · 2022: 1
FWCI
4.23
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA regulation and disease
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
bipolar disorder, major depressive disorder, A-to-I RNA editing, biomarkers, differential diagnosis, misdiagnosis, depression subtypes, machine learning classification, artificial intelligence
MeSH terms
Artificial Intelligence, Bipolar Disorder, Depressive Disorder, Humans, Biomarkers, RNA Editing

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