Evidence map›Paper›PMID 30918245›Full record

ArticleExperimental & molecular medicine2019

Unilateral ureteral obstruction causes gut microbial dysbiosis and metabolome disorders contributing to tubulointerstitial fibrosis.

Lin Chen, Dan-Qian Chen, Jing-Ru Liu, Jun Zhang, Nosratola D Vaziri, Shougang Zhuang, Hua Chen, Ya-Long Feng, Yan Guo, Ying-Yong Zhao

Open access · goldAbstract read
In one paragraph

Article in Experimental & molecular medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 65 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
65citing papers in PubMed, 1 pooled it
10.0field-weighted citation impact, top 1% 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

65 citing papers in PubMed, 1 synthesis or guideline pooled it, 99 citations in OpenAlex.

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5 more citing papers are in PubMed but not listed here.

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 4 institutions in 2 countries.

Lin Chen *School of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Dan-Qian Chen *School of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.ORCID http://orcid.org/0000-0002-2259-7739
Jing-Ru LiuSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Jun ZhangSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Nosratola D VaziriDivision of Nephrology and Hypertension, School of Medicine, University of California Irvine, Irvine, CA, 92897, USA.
Shougang ZhuangDepartment of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, No. 150 Jimo Road, 200120, Shanghai, China.
Hua ChenSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Ya-Long FengSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Yan GuoSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China.
Ying-Yong ZhaoSchool of Pharmacy, Faculty of Life Science and Medicine, Northwest University, No. 229 Taibai North Road, 710069, Xi'an, Shaanxi, China. zyy@nwu.edu.cn.ORCID http://orcid.org/0000-0002-0239-7342
Northwest University · CNShanghai East Hospital · CNUniversity of California, Irvine · USUniversity of New Mexico · US

Funding

National Natural Science Foundation of China (National Science Foundation of China) 81673578National Natural Science Foundation of China (National Science Foundation of China) 81872985
6 · The paper itself

Abstract

Chronic kidney disease (CKD) increases the risk and prevalence of cardiovascular disease (CVD) morbidity and mortality. Recent studies have revealed marked changes in the composition of the microbiome and the metabolome and their potential influence in renal disease and CVD via the accumulation of microbial-derived uremic toxins. However, the effect of unilateral ureteral obstruction (UUO) on the gut microbiome and circulating metabolites is unknown. Male Sprague-Dawley rats were randomized to UUO and sham-operated control groups. Renal histology, colonic microbiota, and plasma metabolites were examined two weeks later. We employed 16S rRNA sequence and untargeted metabolomic analyses to explore the changes in colonic microbiota and plasma metabolites and their relationship with tubulointerstitial fibrosis (TIF). The UUO rats exhibited tubular atrophy and dilatation, interstitial fibrosis and inflammatory cell infiltration in the obstructed kidney. UUO rats showed significant colonic enrichment and depletion of genera. Significant differences were identified in 219 plasma metabolites involved in lipid, amino acid, and bile acid metabolism, which were consistent with gut microbiota-related metabolism. Interestingly, tryptophan and its metabolites kynurenine, 5-hydroxytryptophan and 5-hydroxytryptamine levels, which were linked with TIF, correlated with nine specific genera. Plasma tryptophan level was positively correlated with Clostridium IV, Turicibacter, Pseudomonas and Lactobacillales, and negatively correlated with Oscillibacter, Blautia, and Intestinimonas, which possess the genes encoding tryptophan synthase (K16187), indoleamine 2,3-dioxygenase (K00463) and tryptophan 2,3-dioxygenase (K00453) and their corresponding enzymes (EC:1.13.11.52 and EC:1.13.11.11) that exacerbate TIF. In conclusion, UUO results in profound changes in the gut microbiome and circulating metabolites, events that contribute to the pathogenesis of inflammation and TIF.

Indexed as

Gastrointestinal MicrobiomeMetabolomeAnimalsDysbiosisFibrosisKidney DiseasesKidney TubulesMaleMetabolic Networks and PathwaysRats, Sprague-DawleyUreteral Obstruction

Identifiers

PMID30918245
PMCPMC6437207
OpenAlexW2924957840

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.