Evidence map›Paper›PMID 39800770›Full record

ArticleScientific reports2025

Functional resting state connectivity is differentially associated with IL-6 and TNF-α in depression and in healthy controls.

Christian N Schmitz, Gebhard Sammer, Elena Neumann, Carlo Blecker, Gerhard Gründer, Hana Adolphi, Eva Kathrin Lamadé, Bruno Pedraz-Petrozzi

Abstract read
In one paragraph

Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
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.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

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  9. Burden of psychiatric disease inversely correlates with Alzheimer's age at onset.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
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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

8 authors.

Christian N Schmitz *Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, 68159, Mannheim, Germany.ORCID 0009-0005-1908-4026
Gebhard Sammer *Faculty of Psychology and Sports Science, Justus-Liebig University, Giessen, Hessen, Germany.
Elena NeumannInternal Medicine and Rheumatology, Justus-Liebig University, Campus Kerckhoff, Bad Nauheim, Hessen, Germany.
Carlo BleckerBender Institute of Neuroimaging (BION), Faculty of Psychology and Sports Science, Justus-Liebig University, Giessen, Hessen, Germany.
Gerhard GründerGerman Center for Mental Health (DZPG), Partner Site Mannheim, Mannheim, Germany.ORCID 0000-0001-7868-3903
Hana AdolphiGerman Center for Mental Health (DZPG), Partner Site Mannheim, Mannheim, Germany.
Eva Kathrin LamadéDepartment of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, 68159, Mannheim, Germany.
Bruno Pedraz-PetrozziDepartment of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, 68159, Mannheim, Germany. bruno.pedraz@zi-mannheim.de.ORCID 0000-0002-4119-971X

Funding

Deutscher Akademischer Austauschdienst 57320205Immunität und Seele DE-BY 81377
6 · The paper itself

Abstract

Inflammatory processes have been implicated in the pathophysiology of depression. In human studies, inflammation has been shown to act as a critical disease modifier, promoting susceptibility to depression and modulating specific endophenotypes of depression. However, there is scant documentation of how inflammatory processes are associated with neural activity in patients with depression. We therefore tested the hypothesis that the peripheral inflammation markers IL-6 and TNF-α correlate with neural resting state network functional connectivity in depression using functional magnetic resonance imaging (fMRI) and compared it with healthy controls. We used fMRI to investigate the functional connectivity (FC) of the resting state Default Mode Network (DMN) and Salience/Ventral Attention Network (SAL) and their association with the peripheral inflammation markers IL-6 and TNF-α in 25 patients with depression and compared it to 24 healthy subjects. Results of this imaging study revealed that both DMN and SAL resting state networks are differentially associated with distinct immunological pathways depending on whether a person has a depressive phenotype or is healthy. While the DMN FC correlated with the concentration of the cytokine IL-6 in healthy subjects, SAL FC's connectivity correlated with the cytokine TNF-α's concentration. This study highlights the importance of peripheral inflammatory processes in depression and suggests a modulatory effect on neural resting state networks depending on the state of depression.

Indexed as

DepressionInterleukin-6Tumor Necrosis Factor-alphaAdultBrainBrain MappingCase-Control StudiesFemaleHumansMagnetic Resonance ImagingMaleMiddle AgedNerve NetRestYoung AdultIL6 protein, humanInterleukin-6Tumor Necrosis Factor-alpha

Identifiers

PMID39800770
PMCPMC11725594

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Registered trials

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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.