Evidence map›Paper›PMID 38932988›Full record

ArticleFrontiers in cardiovascular medicine2024

Impact of age-related gut microbiota dysbiosis and reduced short-chain fatty acids on the autonomic nervous system and atrial fibrillation in rats.

Li Liu, Yingqi Yi, Rong Yan, Rong Hu, Weihong Sun, Wei Zhou, Haiyan Zhou, Xiaoyun Si, Yun Ye, Wei Li and 1 more

Abstract read
In one paragraph

Article in Frontiers in cardiovascular medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
–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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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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

11 authors.

Li Liu *Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Yingqi Yi *Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Rong YanDepartment of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Rong HuTranslational Medicine Research Center, Guizhou Medical University, Guiyang, China.
Weihong SunDepartment of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Wei ZhouDepartment of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Haiyan ZhouDepartment of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Xiaoyun SiDepartment of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Yun YeDepartment of Cardiovascular Medicine, Guizhou Provincial People's Hospital, Guiyang, China.
Wei Li *Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.
Jingjing Chen *Department of Cardiovascular Medicine, Affiliated Hospital of Guizhou Medical University, Guiyang, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: Aging is the most significant contributor to the increasing prevalence of atrial fibrillation (AF). Dysbiosis of gut microbiota has been implicated in age-related diseases, but its role in AF development remains unclear. This study aimed to investigate the correlations between changes in the autonomic nervous system, short-chain fatty acids (SCFAs), and alterations in gut microbiota in aged rats with AF. Methods: Electrophysiological experiments were conducted to assess AF induction rates and heart rate variability in rats. 16S rRNA gene sequences extracted from fecal samples were used to assess the gut microbial composition. Gas and liquid chromatography-mass spectroscopy was used to identify SCFAs in fecal samples. Results: The study found that aged rats exhibited a higher incidence of AF and reduced heart rate variability compared to young rats. Omics research revealed disrupted gut microbiota in aged rats, specifically a decreased Firmicutes to Bacteroidetes ratio. Additionally, fecal SCFA levels were significantly lower in aged rats. Importantly, correlation analysis indicated a significant association between decreased SCFAs and declining heart rate variability in aged rats. Conclusions: These findings suggest that SCFAs, as metabolites of gut microbiota, may play a regulatory role in autonomic nervous function and potentially influence the onset and progression of AF in aged rats. These results provide novel insights into the involvement of SCFAs and autonomic nervous system function in the pathogenesis of AF. These results provide novel insights into the involvement of SCFAs and autonomic nervous system function in the pathogenesis of AF.

Indexed as

agingatrial fibrillationautonomic nervous systemgut microbiotashort-chain fatty acids

Identifiers

PMID38932988
PMCPMC11199889

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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.