Evidence map›Paper›PMID 32101387›Full record

ArticleBrain and behavior2020

The role of kynurenine pathway and kynurenic aminotransferase alleles in postpartum depression following cesarean section in Chinese women.

Chengxuan Quan, Saiying Wang, Kaiming Duan, Jiahui Ma, Heya Yu, Mi Yang, Na Hu, Ge Long, Guang Zeng, Zhendong Huang

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 19% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Psychedelic therapy and postpartum depression: priorities and prospects.Therapeutic advances in psychopharmacology · 2026
    Review
  6. Biomarkers of reproductive psychiatric disorders.The British journal of psychiatry : the journal of mental science · 2025
    Review
  7. Article
  8. Review
  9. Genetic Markers Associated with Postpartum Depression: A Review.Neuropsychiatric disease and treatment · 2024
    Review
  10. Review
  11. Review
  12. Review
  13. Kynurenine Pathway of Tryptophan Metabolism in Neuropsychiatric Disorders: Pathophysiologic and Therapeutic Considerations.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2020
    Review
  14. 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

10 authors at 3 institutions in 1 country.

Chengxuan QuanDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.ORCID 0000-0002-8240-840X
Saiying WangDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Kaiming DuanDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Jiahui MaDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Heya YuDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Mi YangDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Na HuDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Ge LongDepartment of Anesthesia, The Third Xiangya Hospital of Central South University, Changsha, China.
Guang ZengDepartment of Anesthesia, Changsha Taihe Hospital, Changsha, China.
Zhendong HuangDepartment of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.ORCID 0000-0002-8423-4634
Central South University · CNTaihe Hospital · CNUnion Hospital · CN

Funding

The National Natural Science Foundation of China 81302852
6 · The paper itself

Abstract

objectivesA growing body of data indicates that the kynurenine pathway may play a role in the pathogenesis of postpartum depressive symptoms (PDS). Kynurenic aminotransferase (KAT) is an important kynurenine pathway enzyme, catalyzing kynurenine (KYN) into kynurenic acid (KYNA). This study investigated as to whether genetic variations in KAT are associated with PDS.

methodsA cohort of 360 Chinese women scheduled to undergo cesarean delivery was enrolled into this study. PDS was determined by an Edinburgh Postnatal Depression Scale (EPDS) score ≥ 13. A total of eight KAT single nucleotide polymorphisms (SNPs) were genotyped and their association with PDS investigated. Serum concentrations of KYN, KYNA, and quinolinic acid (QUIN) in women with or without PDS were also measured. This allowed the determination of the KYNA/KYN ratio, which is reflective of KAT activity.

resultsPostpartum depressive symptoms incidence was 7.2%. Advanced maternal age, lower education, antenatal depression, and postpartum blues were risk factors for PDS (p < .05). Women with PDS, versus non-PDS, had heightened KYN levels one day prior to surgery (ante-d1) (p < .05), as well as having significantly lower KYNA and higher QUIN levels at postnatal day three (post-d3) (p < .05). Women with, versus without, PDS also had a significantly higher QUIN/KYNA ratio at post-d3 (p < .05). KAT activity was significantly lower in women with, versus without, PDS at ante-d3 (p < .05). No significant association was evident between the KAT SNPs and PDS.

conclusionOur data support a role for alterations in the kynurenine pathway in the pathogenesis of PDS, although no significant association was found for the eight tested KAT SNPs with PDS.

Indexed as

AllelesPolymorphism, Single NucleotideAdultCesarean SectionDepression, PostpartumFemaleGenotypeHumansKynurenic AcidKynureninePregnancyQuinolinic AcidTransaminasesKynurenic AcidKynurenineQuinolinic AcidTransaminasesgenetic variationskynurenic aminotransferasekynurenine pathwaypostpartum depressive symptoms

Identifiers

PMID32101387
PMCPMC7177593
OpenAlexW3007854236

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.