Evidence map›Paper›PMID 34589747›Full record

ArticleBrain, behavior, & immunity - health2021

Blood cytokines differentiate bipolar disorder and major depressive disorder during a major depressive episode: Initial discovery and independent sample replication.

Emanuela Martinuzzi, Susana Barbosa, Philippe Courtet, Emilie Olié, Sébastien Guillaume, El Chérif Ibrahim, Douglas Daoudlarian, Laetitia Davidovic, Nicolas Glaichenhaus, Raoul Belzeaux

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in Brain, behavior, & immunity - health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07031817 (Validation of a Composite Medical Device Using a Blood Biomarker-based Algorithm and MDQ for the Diagnosis of Bipolar Disorder in Patients With a Characterized Depressive Episode in Primary Care), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07031817 narecruitingnot on this mapstarted 2025, after this paper: background citation

Validation of a Composite Medical Device Using a Blood Biomarker-based Algorithm and MDQ for the Diagnosis of Bipolar Disorder in Patients With a Characterized Depressive Episode in Primary Care

TypeinterventionalSponsorUniversity Hospital, MontpellierRan2025 to 2028Enrolled623ConditionsBipolar Disorder (BD), Major Depressive Episode (MDE), Primary Care, Major DepressionArmsVenous blood sample for measuring blood biomarkers related to bipolar disorder, Standardized psychiatric assessment tools
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 27 citations in OpenAlex.

  1. Pooled it
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  3. Psychological Distress, Resilience, and Immunoinflammatory Signatures in Healthcare Workers During COVID-19.Stress and health : journal of the International Society for the Investigation of Stress · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 5 institutions in 1 country.

Emanuela MartinuzziUniversité Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Clinical Research Unit, Valbonne, France.
Susana BarbosaUniversité Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Clinical Research Unit, Valbonne, France.
Philippe CourtetCentre Hospitalier Universitaire de Montpellier, Institut National de la Santé et de la Recherche Médicale, Ho^pital Lapeyronie, Department of Emergency Psychiatry and Acute Care, Montpellier, France.
Emilie OliéCentre Hospitalier Universitaire de Montpellier, Institut National de la Santé et de la Recherche Médicale, Ho^pital Lapeyronie, Department of Emergency Psychiatry and Acute Care, Montpellier, France.
Sébastien GuillaumeCentre Hospitalier Universitaire de Montpellier, Institut National de la Santé et de la Recherche Médicale, Ho^pital Lapeyronie, Department of Emergency Psychiatry and Acute Care, Montpellier, France.
El Chérif IbrahimAix Marseille Univ, CNRS, Inst Neurosci Timone, Marseille, France.
Douglas DaoudlarianUniversité Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Clinical Research Unit, Valbonne, France.
Laetitia DavidovicUniversité Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Clinical Research Unit, Valbonne, France.
Nicolas GlaichenhausUniversité Côte d'Azur, Centre National de la Recherche Scientifique, Institut de Pharmacologie Moléculaire et Cellulaire, Clinical Research Unit, Valbonne, France.
Raoul BelzeauxAix Marseille Univ, CNRS, Inst Neurosci Timone, Marseille, France.
Institut de Pharmacologie Moléculaire et Cellulaire · FRCentre Hospitalier Universitaire de Montpellier · FRAssistance Publique Hôpitaux de Marseille · FRHôpital Lapeyronie · FRInstitut de Neurosciences de la Timone · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Bipolar disorder (BD) diagnosis currently relies on assessment of clinical symptoms, mainly retrospective and subject to memory bias. BD is often misdiagnosed as Major Depressive Disorder (MDD) resulting in ineffective treatment and worsened clinical outcome. The primary purpose of this study was to identify blood biomarkers that discriminate MDD from BD patients when in a depressed state. We have used clinical data and serum samples from two independent naturalistic cohorts of patients with a Major Depressive Episode (MDE) who fulfilled the criteria of either BD or MDD at inclusion. The discovery and replication cohorts consisted of 462 and 133 patients respectively. Patients were clinically assessed using standard diagnostic interviews, and clinical variables including current treatments were recorded. Blood was collected and serum assessed for levels of 31 cytokines using a sensitive multiplex assay. A penalized logistic regression model combined with nonparametric bootstrap was subsequently used to identify cytokines associated with BD. Interleukin (IL)-6, IL-10, IL-15, IL-27 and C-X-C ligand chemokine (CXCL)-10 were positively associated with BD in the discovery cohort. Of the five cytokines identified as discriminant features in the discovery cohort, IL-10, IL-15 and IL-27 were also positively associated with BD in the replication cohort therefore providing an external validation to our finding. Should our results be validated in a prospective cohort, they could provide new insights into the pathophysiological mechanisms of mood disorders.

Indexed as

Bipolar disorderImmunity/inflammationMachine learningMajor depressive disorders

Identifiers

PMID34589747
PMCPMC8474674
OpenAlexW3139194145

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.