Evidence map›Paper›PMID 31519869›Full record

ArticleTranslational psychiatry2019

Minocycline alters behavior, microglia and the gut microbiome in a trait-anxiety-dependent manner.

Anna K Schmidtner, David A Slattery, Joachim Gläsner, Andreas Hiergeist, Katharina Gryksa, Victoria A Malik, Julian Hellmann-Regen, Isabella Heuser, Thomas C Baghai, André Gessner and 3 more

Open access · goldAbstract read
In one paragraph

Article in Translational psychiatry, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
74citing papers in PubMed, 2 pooled it
5.9field-weighted citation impact, top 3% 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

74 citing papers in PubMed, 2 syntheses or guidelines pooled it, 151 citations in OpenAlex.

  1. Tetracycline use in treating osteoarthritis: a systematic review.Inflammation research : official journal of the European Histamine Research Society ... [et al.] · 2021
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  20. Minocycline Abrogates Individual Differences in Nerve Injury-Evoked Affective Disturbances in Male Rats and Prevents Associated Supraspinal Neuroinflammation.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2024
    Article

14 more citing papers are in PubMed but not listed here.

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

13 authors at 4 institutions in 1 country.

Anna K SchmidtnerUniversity of Regensburg, Department of Behavioural and Molecular Neurobiology, Regensburg Center of Neuroscience, Regensburg, Germany. Anna-Kristina.Schmidtner@ur.de.
David A SlatteryUniversity of Regensburg, Department of Behavioural and Molecular Neurobiology, Regensburg Center of Neuroscience, Regensburg, Germany.
Joachim GläsnerUniversity Hospital Regensburg, Institute of Clinical Microbiology and Hygiene, Regensburg, Germany.
Andreas HiergeistUniversity Hospital Regensburg, Institute of Clinical Microbiology and Hygiene, Regensburg, Germany.
Katharina GryksaUniversity of Regensburg, Department of Behavioural and Molecular Neurobiology, Regensburg Center of Neuroscience, Regensburg, Germany.
Victoria A MalikUniversity Regensburg, Department of Psychiatry and Psychotherapy, Regensburg Center of Neuroscience, Regensburg, Germany.
Julian Hellmann-RegenDepartment of Psychiatry, Charité-Campus Benjamin Franklin, Section Neurobiology, University Medicine Berlin, Berlin, Germany.
Isabella HeuserDepartment of Psychiatry, Charité-Campus Benjamin Franklin, Section Neurobiology, University Medicine Berlin, Berlin, Germany.
Thomas C BaghaiUniversity Regensburg, Department of Psychiatry and Psychotherapy, Regensburg Center of Neuroscience, Regensburg, Germany.
André GessnerUniversity Hospital Regensburg, Institute of Clinical Microbiology and Hygiene, Regensburg, Germany.
Rainer RupprechtUniversity Regensburg, Department of Psychiatry and Psychotherapy, Regensburg Center of Neuroscience, Regensburg, Germany.
Barbara Di BenedettoUniversity Regensburg, Department of Psychiatry and Psychotherapy, Regensburg Center of Neuroscience, Regensburg, Germany.
Inga D NeumannUniversity of Regensburg, Department of Behavioural and Molecular Neurobiology, Regensburg Center of Neuroscience, Regensburg, Germany.
University of Regensburg · DEUniversity Hospital Regensburg · DECharité - Universitätsmedizin Berlin · DEUniversity Hospital Frankfurt · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Major depressive disorder is the main cause of disability worldwide with imperfect treatment options. However, novel therapeutic approaches are currently discussed, from augmentation strategies to novel treatments targeting the immune system or the microbiome-gut-brain axis. Therefore, we examined the potential beneficial effects of minocycline, a tetracycline antibiotic with pleiotropic, immunomodulatory action, alone or as augmentation of escitalopram on behavior, prefrontal microglial density, and the gut microbiome in rats selectively bred for high anxiety-like behavior (HAB). We show that concomitant with their high innate anxiety and depression, HABs have lower microglial numbers in the infralimbic and prelimbic prefrontal cortex and an altered gut microbiota composition compared with controls. Three weeks of minocycline treatment alleviated the depressive-like phenotype, further reduced microglial density, exclusively in male HAB rats, and reduced plasma concentrations of pro-inflammatory cytokines. However, coadministration of escitalopram, which had no effect alone, prevented these minocycline-induced effects. Moreover, minocycline led to a robust shift in cecal microbial composition in both HABs and rats non-selected for anxiety-like behavior. Minocycline markedly increased relative abundance of Lachnospiraceae and Clostridiales Family XIII, families known for their butyrate production, with a corresponding increase and positive correlation in plasma 3-OH-butyrate levels in a trait-dependent manner. Thus, our data suggest that the antidepressant effect of minocycline is sex- and trait-dependent, associated with a reduced microglial number in the prefrontal cortex, and with changes in microbial composition and their metabolites. These results further support the microbiome-gut-brain axis as potential target in the treatment of depression.

Indexed as

AnimalsAnti-Bacterial AgentsAnxietyBehavior, AnimalCecumDisease Models, AnimalFemaleGastrointestinal MicrobiomeMaleMicrogliaMinocyclinePrefrontal CortexRatsRats, WistarTreatment OutcomeAnti-Bacterial AgentsMinocycline

Identifiers

PMID31519869
PMCPMC6744405
OpenAlexW2972689719

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.