Evidence map›Paper›PMID 34082732›Full record

ArticleBMC nephrology2021

Reduced fecal short-chain fatty acids levels and the relationship with gut microbiota in IgA nephropathy.

Lingxiong Chai, Qun Luo, Kedan Cai, Kaiyue Wang, Binbin Xu

Open access · goldAbstract read
In one paragraph

Article in BMC nephrology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 2 pooled it
2.9field-weighted citation impact, top 8% 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

39 citing papers in PubMed, 2 syntheses or guidelines pooled it, 47 citations in OpenAlex.

  1. Pooled it
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  3. Efficacy ofNutrients · 2024
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  20. IgA nephropathy: gut microbiome regulates the production of hypoglycosilated IgA1 via the TLR4 signaling pathway.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2024
    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

5 authors at 1 institution in 1 country.

Lingxiong ChaiDeparment of Nephrology, Ningbo Hwamei Hospital, University of Chinese Academy of Sciences, No.41, Xibei street, Zhejiang Province, 315010, Ningbo, China.
Qun LuoDeparment of Nephrology, Ningbo Hwamei Hospital, University of Chinese Academy of Sciences, No.41, Xibei street, Zhejiang Province, 315010, Ningbo, China.
Kedan CaiDeparment of Nephrology, Ningbo Hwamei Hospital, University of Chinese Academy of Sciences, No.41, Xibei street, Zhejiang Province, 315010, Ningbo, China.
Kaiyue WangDeparment of Nephrology, Ningbo Hwamei Hospital, University of Chinese Academy of Sciences, No.41, Xibei street, Zhejiang Province, 315010, Ningbo, China.
Binbin XuDeparment of Nephrology, Ningbo Hwamei Hospital, University of Chinese Academy of Sciences, No.41, Xibei street, Zhejiang Province, 315010, Ningbo, China. xbb1972@126.com.
University of Chinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIgA nephropathy(IgAN)) is the common pathological type of glomerular diseases. The role of gut microbiota in mediating "gut-IgA nephropathy" has not received sufficient attention in the previous studies. The purpose of this study was to investigate the changes of fecal short-chain fatty acids(SCFAs), a metabolite of the intestinal microbiota, in patients with IgAN and its correlation with intestinal flora and clinical indicators, and to further investigate the role of the gut-renal axis in IgAN.

methodsThere were 29 patients with IgAN and 29 normal control subjects recruited from January 2018 to May 2018. The fresh feces were collected. The fecal SCFAs were measured by gas chromatography/mass spectrometry and gut microbiota was analysed by16S rDNA sequences, followed by estimation of α- and β-diversity. Correlation analysis was performed using the spearman's correlation test between SCFAs and gut microbiota.

resultsThe levels of acetic acid, propionic acid, butyric acid, isobutyric acid and caproic acid in the IgAN patients were significantly reduced compared with control group(P < 0.05). Butyric acid(r=-0.336, P = 0.010) and isobutyric acid(r=-0.298, P = 0.022) were negatively correlated with urea acid; butyric acid(r=-0.316, P = 0.016) was negatively correlated with urea nitrogen; caproic acid(r=-0.415,P = 0.025) showed negative correlation with 24-h urine protein level.Exemplified by the results of α-diversity and β-diversity, the intestinal flora of IgAN patients was significantly different from that of the control group. Acetic acid was positively associated with c_Clostridia(r = 0.357, P = 0.008), o_Clostridiales(r = 0.357, P = 0.008) and g_Eubacterium_coprostanoligenes_group(r = 0.283, P = 0.036). Butyric acid was positively associated with g_Alistipes (r = 0.278, P = 0.040). The relative abundance of those were significantly decreased in IgAN group compared to control group.

conclusionsThe levels of fecal SCFAs in the IgAN patients were reduced, and correlated with clinical parameters and gut microbiota, which may be involved in the pathogenesis of IgAN, and this finding may provide a new therapeutic approach.

Indexed as

Gastrointestinal MicrobiomeAdultBiomarkersBlood Chemical AnalysisCase-Control StudiesDysbiosisFatty Acids, VolatileFecesFemaleGlomerulonephritis, IGAHumansMaleBiomarkersFatty Acids, VolatileGut microbiotaIgA nephropathyShort-chain fatty acids

Identifiers

PMID34082732
PMCPMC8173972
OpenAlexW3150936160

What OpenQuestion holds

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LicenceCC BY
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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.