Evidence map›Paper›PMID 33407122›Full record

ArticleBMC microbiology2021

Comparison of gut microbiota structure and Actinobacteria abundances in healthy young adults and elderly subjects: a pilot study.

Jun Li, Haiyan Si, Haitao Du, Hongxia Guo, Huanqin Dai, Shiping Xu, Jun Wan

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC microbiology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 11% 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

30 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 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

7 authors at 2 institutions in 1 country.

Jun LiDepartment of Gastroenterology, 2nd Medical Center, Chinese People's Liberation Army General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
Haiyan SiDepartment of Oncology, First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.
Haitao DuDepartment of Gastroenterology, 2nd Medical Center, Chinese People's Liberation Army General Hospital, No. 28 Fuxing Road, Beijing, 100853, China.
Hongxia GuoDepartment of Oncology, First Medical Center, Chinese People's Liberation Army General Hospital, Beijing, China.
Huanqin DaiChinese Academy Sciences Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China.
Shiping XuDepartment of Gastroenterology, 2nd Medical Center, Chinese People's Liberation Army General Hospital, No. 28 Fuxing Road, Beijing, 100853, China. xushipingBM@163.com.
Jun WanDepartment of Gastroenterology, 2nd Medical Center, Chinese People's Liberation Army General Hospital, No. 28 Fuxing Road, Beijing, 100853, China. wanjun301@126.com.
Chinese People's Liberation Army · CNChinese Academy of Sciences · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim was to determine the potential association of the gut microbiota composition, especially the abundance of Actinobacteria, as well as the differentiation of functional and resistance genes with age (young adults vs elderly subjects) in China.

resultsThe patterns of relative abundance of all bacteria isolated from fecal samples differed between young adults and elderly subjects, but the alpha diversity (Chao1 P = 0.370, Shannon P = 0.560 and Simpson P = 0.270) and beta diversity (ANOSIM R = 0.031, P = 0.226) were not significantly different. There were 3 Kyoto Encyclopedia of Genes and Genomes (KEGG) metabolic pathways (carbon metabolism, inositol phosphate metabolism, and sesquiterpenoid and triterpenoid biosynthesis) and 7 antibiotic resistant genes (ARGs) (macrolide lincosamide-streptogramin B (MLSB), tetracycline, aminoglycoside, sulfonamide, fosmidomycin, lincomycin, and vancomycin) that showed significant differences between the 2 groups (all P < 0.05). The abundance of Actinomycetes was enriched (about 2.4-fold) in young adults. Bifidobacteria dominated in both young adults and elderly subjects, with overall higher abundances in young adults (P > 0.05). Only the Bifidobacterium_dentium species showed significant differences between the 2 groups (P = 0.013), with a higher abundance in elderly subjects but absent in young adults.

conclusionsThe present study revealed that there were 3 KEGG metabolic pathways and 7 ARGs as well as enhanced Bifidobacterium_dentium species abundance in elderly compared to young subjects.

Indexed as

Drug Resistance, BacterialMetabolic Networks and PathwaysActinobacteriaAdultAgedAge FactorsBacteriaChinaDNA, BacterialDNA, RibosomalFecesFemaleGastrointestinal MicrobiomeHealthy VolunteersHigh-Throughput Nucleotide SequencingHumansDNA, BacterialDNA, RibosomalRNA, Ribosomal, 16SActinomycetesAntibiotic resistant genesGut microbiotaKEGG metabolic pathwaysMetagenomics

Identifiers

PMID33407122
PMCPMC7788997
OpenAlexW3120181224

What OpenQuestion holds

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LicenceCC BY
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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.