Evidence map›Paper›PMID 33404827›Full record

ArticleApplied microbiology and biotechnology2021

Gut microbiota affect the formation of calcium oxalate renal calculi caused by high daily tea consumption.

Feng Chen, Xuan Bao, Shiyu Liu, Kun Ye, Shasha Xiang, Liting Yu, Qingkang Xu, Yuehong Zhang, Xiu Wang, Xuan Zhu and 4 more

Abstract read
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In one paragraph

Article in Applied microbiology and biotechnology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 3 pooled it
3.4field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 3 syntheses or guidelines pooled it, 31 citations in OpenAlex.

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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

14 authors at 6 institutions in 1 country.

Feng ChenDepartment of Urology, Jiaxing Ivy Hospital, Jiaxing, Zhejiang, People's Republic of China.
Xuan BaoSchool of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China.
Shiyu LiuSchool of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China.
Kun YeSchool of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China.
Shasha XiangSchool of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China.
Liting YuDepartment of Urology, China Coast Guard of the Chinese People Armed Police Force Corps Hospital, Jiaxing, Zhejiang, People's Republic of China.
Qingkang XuDepartment of Urology, Jiaxing Ivy Hospital, Jiaxing, Zhejiang, People's Republic of China.
Yuehong ZhangDepartment of Urology, China Coast Guard of the Chinese People Armed Police Force Corps Hospital, Jiaxing, Zhejiang, People's Republic of China.
Xiu WangNanhu College of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China.
Xuan ZhuSchool of Food Science and Bioengineering, Zhejiang Gongshang University, Hangzhou, Zhejiang, People's Republic of China. zhuxuan@zjgsu.edu.cn.
Jian YingCOFCO Nutrition and Health Research Institute, Beijing, China.
Yubiao ShenYangtze Delta Region Institute of Tsinghua University, Zhejiang, People's Republic of China.
Wei JiYangtze Delta Region Institute of Tsinghua University, Zhejiang, People's Republic of China.
Shufeng SiShandong Zhongke-jiayi Bioengineering Co., Ltd, Weifang, People's Republic of China.
Zhejiang Gongshang University · CNFirst Hospital of Jiaxing · CNTsinghua University · CNChina National Health Development Research Center · CNJiaxing University · CNYebio Bioengineering (China) · CN

Funding

Innovative Research Group Project of the National Natural Science Foundation of China 31501452
6 · The paper itself

Abstract

Kidney stones are a common and frequently occurring disease worldwide. Stones can cause urinary tract obstruction, pain, haematuria, and other symptoms. In this study, the relationship between calcium oxalate renal calculi and gut microbiota was considered. The dietary habits of 30 patients with calcium oxalate kidney stones and 30 healthy people were investigated. The 16S rDNA sequences and short-chain fatty acids (SCFAs) in their stool samples were analysed. We identified 5 genera of the gut microbiota as biomarkers for calcium oxalate renal calculi, namely, Bacteroides, Phascolarctobacterium, Faecalibacterium, Akkermansia, and Lactobacillus, with a receiver operating characteristic (ROC) curve value of 0.871 (95% confidence interval (CI) 0.785-0.957). Phascolarctobacterium and Faecalibacterium showed a positive relationship with SCFA synthesis to reduce the risk of kidney stones. Meanwhile, according to the analysis, Lactobacillus spp. made the largest contribution (79%) to prevent kidney stones caused by tea consumption, since tea offers the great parts of oxalate in kidney stone formation. Three strains of Lactobacillus spp. were isolated from stools of a healthy person with a high level of tea consumption who did not suffer from kidney stones. All these strains survived in the colon with supplementation of high concentrations of tea and efficiently degraded oxalic acid (Ca. 50%) in an in vitro colonic simulation. Therefore, a suitable adjustment of the gut microbiota or SCFA concentration enhanced the degradation of oxalate from food, which can be applied to prevent the formation of calcium oxalate renal calculi caused by tea. KEY POINTS: • Five genera, including Lactobacillus, were identified as biomarkers for calcium oxalate renal calculi. • Lactobacillus is a potential gut bacterium associated with preventing kidney stone formation. • Isolated Lactobacillus strains have the ability to degrade oxalic acid in vitro.

Indexed as

Gastrointestinal MicrobiomeKidney CalculiCalciumCalcium OxalateHumansKidneyTeaCalciumCalcium OxalateTeaCalcium oxalate renal calculusGut microbiotaLactobacillusTea

Identifiers

PMID33404827
OpenAlexW3118289631

What OpenQuestion holds

Textmetadata
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.