Evidence map›Paper›PMID 32975292›Full record

Observational studyThe international journal of neuropsychopharmacology2021

Effects of Psychotropics on the Microbiome in Patients With Depression and Anxiety: Considerations in a Naturalistic Clinical Setting.

Yoshihiro Tomizawa, Shunya Kurokawa, Daiki Ishii, Katsuma Miyaho, Chiharu Ishii, Kenji Sanada, Shinji Fukuda, Masaru Mimura, Taishiro Kishimoto

Open access · goldAbstract readObservational Study
In one paragraph

Observational study in The international journal of neuropsychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 13% 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

33 citing papers in PubMed, 2 syntheses or guidelines pooled it, 63 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Yoshihiro TomizawaDivision of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, Tokyo, Japan.
Shunya KurokawaDepartment of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
Daiki IshiiDivision of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, Tokyo, Japan.
Katsuma MiyahoDepartment of Psychiatry, Showa University School of Medicine, Tokyo, Japan.
Chiharu IshiiDivision of Pharmacotherapeutics, Faculty of Pharmacy, Keio University, Tokyo, Japan.
Kenji SanadaDepartment of Psychiatry, Showa University School of Medicine, Tokyo, Japan.
Shinji FukudaInstitute for Advanced Biosciences, Keio University, Yamagata, Japan.
Masaru MimuraDepartment of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
Taishiro KishimotoDepartment of Neuropsychiatry, School of Medicine, Keio University, Tokyo, Japan.
Keio University · JPShowa University · JPUniversity of Tsukuba · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe antibacterial effects of psychotropics may be part of their pharmacological effects when treating depression. However, limited studies have focused on gut microbiota in relation to prescribed medication.

methodWe longitudinally investigated the relationship between patients' prescribed medications and intestinal bacterial diversity in a naturalistic treatment course for patients with major depressive disorders and anxiety disorders. Patients were recruited and their stool was collected at 3 time points during their usual psychiatric treatments. Gut microbiota were analyzed using 16S rRNA gene sequencing. We examined the impact of psychotropics (i.e., antidepressants, anxiolytics, antipsychotics) on their gut microbial diversity and functions.

resultsWe collected 246 stool samples from 40 patients. Despite no differences in microbial diversity between medication groups at the baseline, over the course of treatment, phylogenic diversity whole-tree diversity decreased in patients on antipsychotics compared with patients without (P = .027), and beta diversity followed this trend. Based on a fixed-effect model, antipsychotics predicted microbial diversity; the higher doses correlated with less diversity based on the Shannon index and phylogenic diversity whole tree (estimate = -0.00254, SE = 0.000595, P < .0001; estimate = -0.02644, SE = 0.00833, P = .002, respectively).

conclusionAntipsychotics may play a role in decreasing the alpha diversity of the gut microbiome among patients with depression and anxiety, and our results indicate a relationship with medication dosage. Future studies are warranted and should consider patients' types and doses of antipsychotics in order to further elucidate the mechanisms of gut-brain interactions in psychiatric disorders.

Indexed as

AdultAgedAnti-Anxiety AgentsAntidepressive AgentsAntipsychotic AgentsAnxiety DisordersDepressive DisorderFemaleGastrointestinal MicrobiomeHumansLongitudinal StudiesMaleMiddle AgedRNA, Ribosomal, 16SAnti-Anxiety AgentsAntidepressive AgentsAntipsychotic AgentsRNA, Ribosomal, 16Sanxietydepressionmicrobial diversitymicrobiomepsychotropics

Identifiers

PMID32975292
PMCPMC7883890
OpenAlexW3087913471

What OpenQuestion holds

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LicenceCC BY-NC
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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.