Evidence map›Paper›PMID 35769008›Full record

ArticleCNS neuroscience & therapeutics2022

Kynurenine pathway metabolites and therapeutic response to olanzapine in female patients with schizophrenia: A longitudinal study.

Xiaoni Guan, Jing Xu, Meihong Xiu, Xirong Li, Haixia Liu, Fengchun Wu

Open access · goldAbstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.7field-weighted citation impact, top 42% 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

5 citing papers in PubMed, 10 citations in OpenAlex.

  1. Review
  2. Review
  3. Changes in schizophrenia symptoms, tryptophan metabolism, neuroinflammation and the GABA-glutamate loop: A pilot study.The South African journal of psychiatry : SAJP : the journal of the Society of Psychiatrists of South Africa · 2025
    Article
  4. Review
  5. Article
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

6 authors at 4 institutions in 1 country.

Xiaoni GuanPeking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China.
Jing XuQingdao Mental Health Center, Qingdao Medical University, Qingdao, China.
Meihong XiuPeking University HuiLongGuan Clinical Medical School, Beijing HuiLongGuan Hospital, Beijing, China.ORCID 0000-0002-5125-8429
Xirong LiDepartment of Psychiatry, Shandong Mental Health Center, Shandong University, Jinan, China.
Haixia LiuDepartment of Psychiatry, Shandong Mental Health Center, Shandong University, Jinan, China.
Fengchun WuDepartment of Psychiatry, The Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou, China.
Peking University · CNShandong University · CNGuangzhou Medical University · CNQingdao Mental Health Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimA metabolomics approach has recently been used to identify metabolites associated with response to antipsychotic treatment. This study was designed to identify the predictive biomarkers of response to olanzapine monotherapy using a metabolomics-based strategy.

methodsTwenty-five first-episode and drug-naïve female patients with schizophrenia were recruited and treated with olanzapine for 4 weeks. Psychiatric symptoms were assessed using the Positive and Negative Syndrome Scale (PANSS) at baseline and 4-week follow-up.

resultsPositive subscore, general psychopathology subscore, and PANSS total score were significantly decreased after treatment. An ultra-performance liquid chromatography-mass spectrometry (UPLC-MS)-based metabolomics approach identified 72 differential metabolites after treatment. In addition, the baseline levels of methyl n-formylanthranilate (MNFT) were correlated with the rate of reduction in the positive subscore or PANSS total score. However, increase in MNFT after treatment was not associated with the rate of reduction in the PANSS total score or its subscores. Subsequent regression analysis revealed that the baseline MNFT levels predicted the treatment outcomes after olanzapine monotherapy for 4 weeks in patients with schizophrenia.

conclusionsOur study results suggest that the baseline MNFT levels in the kynurenine pathway of tryptophan metabolism may be predictive of the treatment response to olanzapine in schizophrenia.

Indexed as

Antipsychotic AgentsSchizophreniaBenzodiazepinesChromatography, LiquidFemaleHumansKynurenineLongitudinal StudiesOlanzapinePsychiatric Status Rating ScalesTandem Mass SpectrometryTreatment OutcomeAntipsychotic AgentsBenzodiazepinesKynurenineOlanzapinekynureninemetaboliteolanzapineschizophreniatherapeutic response

Identifiers

PMID35769008
PMCPMC9437236
OpenAlexW4283734069

What Socratic 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 Socratic graph.