Evidence map›Paper›PMID 40696591›Full record

ArticleMedicine2025

Prediction of calcium oxalate kidney stones: A comprehensive analysis of clinical and gut microbiome characteristics.

Minghe Zhang, Lianhui Fan, Jian Li

Abstract read
In one paragraph

Article in Medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. 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

3 authors.

Minghe ZhangDepartment of Urology, General Hospital of Northern Theater Command, Shenyang, Liaoning Province, China.
Lianhui Fan

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In recent years, the role of the gut microbiome in stone formation has gained increasing attention. Specifically, certain gut microbes that metabolize oxalate may regulate oxalate levels in the body, thereby influencing the occurrence of kidney stones. This study aims to investigate the clinical characteristics of calcium oxalate stone patients, the composition of their gut microbiome, and the relationship between these factors and stone formation. This study included 159 calcium oxalate stone patients (case group) and 141 healthy controls (control group). Clinical data were collected to analyze differences in body mass index, urinary metabolic markers (urinary oxalate, calcium, and pH), and other indicators between the 2 groups. High-throughput 16S rRNA sequencing was used to compare the diversity and composition of the gut microbiome. Further, correlations between the gut microbiome and clinical metabolic indicators were analyzed, and a risk prediction model for calcium oxalate stones was developed based on clinical and gut microbiome characteristics. Significant differences in body mass index, urinary oxalate concentration, urinary calcium concentration, and urinary pH were observed between the case and control groups. Gut microbiome diversity analysis revealed that the Shannon and Chao1 indices were lower in the case group, and significant differences in microbiome composition were found. The abundance of Proteobacteria and Firmicutes changed significantly, with a notable decrease in Oxalobacter formigenes and an increase in Escherichia-Shigella species in the case group. Correlation analysis showed a negative correlation between O formigenes abundance and urinary oxalate concentration, and a negative correlation between Escherichia-Shigella and urinary pH. The random forest prediction model exhibited high predictive accuracy (area under the receiver operating characteristic curve = 0.90). The formation of calcium oxalate stones is closely related to the structure and function of the gut microbiome, particularly with the reduced abundance of the oxalate-degrading bacterium O formigenes. Gut microbiome imbalance may influence stone formation through various mechanisms. This study provides new theoretical insights for the early prediction, prevention, and treatment of calcium oxalate stones.

Indexed as

Calcium OxalateGastrointestinal MicrobiomeKidney CalculiAdultBody Mass IndexCase-Control StudiesFemaleHumansHydrogen-Ion ConcentrationMaleMiddle AgedOxalobacter formigenesRNA, Ribosomal, 16SCalcium OxalateRNA, Ribosomal, 16Scalcium oxalate stonesgut microbiomeprediction modelurinary metabolism

Identifiers

PMID40696591
PMCPMC12282706

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.