Evidence map›Paper›PMID 36472886›Full record

ArticleThe international journal of neuropsychopharmacology2023

Inflammation and Blood-Brain Barrier in Depression: Interaction of CLDN5 and IL6 Gene Variants in Stress-Induced Depression.

Zsofia Gal, Dora Torok, Xenia Gonda, Nora Eszlari, Ian Muir Anderson, Bill Deakin, Gabriella Juhasz, Gyorgy Bagdy, Peter Petschner

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.7field-weighted citation impact, top 16% 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.

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

18 citing papers in PubMed, 29 citations in OpenAlex.

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  6. Trauma Exposure, PTSD, and Methylation of the Blood Brain Barrier Claudin-5 Gene.medRxiv : the preprint server for health sciences · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 3 countries.

Zsofia GalDepartment of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.ORCID 0000-0002-9441-1497
Dora TorokDepartment of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.
Xenia GondaNAP3.0-SE Neuropsychopharmacology Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary.
Nora EszlariDepartment of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.
Ian Muir AndersonDivision of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biological, Medical and Human Sciences, The University of Manchester and Manchester Academic Health Sciences Centre, Manchester, United Kingdom.
Bill DeakinDivision of Neuroscience and Experimental Psychology, School of Biological Sciences, Faculty of Biological, Medical and Human Sciences, The University of Manchester and Manchester Academic Health Sciences Centre, Manchester, United Kingdom.ORCID 0000-0002-2750-962X
Gabriella JuhaszDepartment of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.
Gyorgy BagdyDepartment of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Budapest, Hungary.
Peter PetschnerNAP3.0-SE Neuropsychopharmacology Research Group, Hungarian Brain Research Program, Semmelweis University, Budapest, Hungary.ORCID 0000-0002-3198-858X
Semmelweis University · HUManchester Academic Health Science Centre · GB

Funding

Medical Research Council MC_PC_17228Medical Research Council MC_QA137853
6 · The paper itself

Abstract

backgroundEvidence from rodents indicated that after recent stress, reduced expression of tight junction protein claudin-5 may weaken the blood-brain barrier and allow interleukin-6 to induce depressive symptoms. Our aims were to prove this pathomechanism in humans.

methodsWe used a large population genetic database (UK Biobank, n = 277 501) to test whether variation in the CLDN5 gene could modulate effects of the IL6 gene variant in stress-induced depression. Three-way interaction of functional polymorphisms, rs885985 of CLDN5, and rs1800795 of IL6 with recent stressful life events were tested on current depressive symptoms. Analyses were performed in male and female populations as well.

resultsThe 3-way interaction including recent stress yielded highly significant results on current depressive symptoms in the UK Biobank sample, which was more pronounced in men and could be replicated on trend level in an independent cohort (NewMood, n = 1638). None of any other associations or interactions, including, for example, childhood stressors and lifetime depression as an outcome, yielded significance.

conclusionsThese findings provide genetic evidence in humans for the interaction among interleukin-6, claudin-5, and recent stress, suggesting that inflammation is involved in the development of depression and that stress-connected brain entry of inflammatory molecules is a key factor in this pathomechanism. These genetic polymorphisms may help to identify people at higher risk for recent stress-induced depression.

Indexed as

Blood-Brain BarrierInterleukin-6ChildClaudin-5DepressionFemaleHumansInflammationMaleClaudin-5CLDN5 protein, humanInterleukin-6biomarkerblood-brain barrierCLDN5IL6major depressive disorder

Identifiers

PMID36472886
PMCPMC10032304
OpenAlexW4310772681

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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Registered trials

None linked

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.