Evidence map›Paper›PMID 33552996›Full record

ArticleFrontiers in cellular and infection microbiology2020

Gut Microbiota Composition Changes in Constipated Women of Reproductive Age.

Hongxia Li, Jianwei Chen, Xiaojing Ren, Chuanli Yang, Shuai Liu, Xinshu Bai, Shuhua Shan, Xiushan Dong

Open access · goldAbstract read
In one paragraph

Article in Frontiers in cellular and infection microbiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 1 pooled it
3.9field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 1 synthesis or guideline pooled it, 55 citations in OpenAlex.

  1. Global Microbiome: Core and Unique Signatures Across Diverse Populations.International journal of molecular sciences · 2026
    Pooled it
  2. Trial
  3. Article
  4. Article
  5. Frontiers in nutrition · 2026
    Article
  6. Review
  7. Review
  8. Article
  9. Probiotics and prebiotics in the treatment of functional constipation in the elderly individuals.World journal of gastrointestinal pharmacology and therapeutics · 2025
    Review
  10. All Properties of Infertility Microbiome in a Review Article.Journal of clinical laboratory analysis · 2025
    Review
  11. Article
  12. Relationship Between the Frequency of Bowel Movements and Fecal Bacteroides in Japanese Women.Plant foods for human nutrition (Dordrecht, Netherlands) · 2024
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

8 authors at 3 institutions in 1 country.

Hongxia LiDepartment of General Surgery, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Jianwei ChenDepartment of General Surgery, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Xiaojing RenKey Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China.
Chuanli YangKey Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China.
Shuai LiuDepartment of General Surgery, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Xinshu BaiDepartment of General Surgery, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Shuhua ShanKey Laboratory of Chemical Biology and Molecular Engineering of National Ministry of Education, Institute of Biotechnology, Shanxi University, Taiyuan, China.
Xiushan DongDepartment of General Surgery, Bethune Hospital Affiliated to Shanxi Medical University, Taiyuan, China.
Shanxi Medical University · CNShanxi University · CNShanxi Academy of Medical Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Chronic constipation is one of the most prevalent functional gastrointestinal disorders, yet its etiology is multifactorial, and the pathophysiological mechanism is still unclear. Previous studies have shown that the gut microbiota of constipated patients differs from healthy controls; however, many discrepancies exist in the findings, and no clear link has been confirmed between chronic constipation and changes in the gut microbiota. Growing evidence indicates that age, gender, and hormone levels can affect the composition of gut microbiota. The aim of this study is to examine the overall changes in gut microbiota within a specific sub-population of patients, namely, constipated women of reproductive age. Methods: We carried out a cross-sectional study comparing the fecal microbial composition of 30 healthy women and 29 constipated women using 16S rRNA gene sequencing. Only women of reproductive age were recruited to reduce the effects of age, gender, and hormone levels on the microbiome, and to prevent conflating the impact of these factors with the effects of constipation. Results: There were obvious differences in the gut microbiota in constipated women of reproductive age compared with the healthy controls, manifesting mainly as a significant increase in the abundance of Conclusion: The overall composition of the gut microbiota changed in constipated women of reproductive age, characterized by a loss in Proteobacteria and an increase in Bacteroidetes. Furthermore, the abundance of some butyrate-producing bacteria also reduced. These changes may reflect the unique interactions between host and some bacteria, or some bacterial metabolic products, which may be important targets for future studies to explore the pathogenesis of constipation.

Indexed as

Gastrointestinal MicrobiomeMicrobiotaConstipationCross-Sectional StudiesFecesFemaleHumansRNA, Ribosomal, 16SRNA, Ribosomal, 16S16S rRNA gene sequencingchronic constipationgut microbiotainfluence factorswomen of reproductive age

Identifiers

PMID33552996
PMCPMC7859112
OpenAlexW3123735707

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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.