Evidence map›Paper›PMID 35182212›Full record

ArticleSurgical endoscopy2022

Laparoscopic sleeve gastrectomy for morbid obesity improves gut microbiota balance, increases colonic mucosal-associated invariant T cells and decreases circulating regulatory T cells.

Naoki Fukuda, Toshiyasu Ojima, Keiji Hayata, Masahiro Katsuda, Junya Kitadani, Akihiro Takeuchi, Taro Goda, Yoko Ueda, Hiroshi Iwakura, Masahiro Nishi and 1 more

Abstract read
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Article in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

13 citing papers in PubMed, 18 citations in OpenAlex.

  1. Article
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  5. Review
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  7. Review
  8. Review
  9. The gut microbiome: a core regulator of metabolism.The Journal of endocrinology · 2023
    Review
  10. MAIT cells and the microbiome.Frontiers in immunology · 2023
    Review
  11. The Role of the Gut Microbiome in Pediatric Obesity and Bariatric Surgery.International journal of molecular sciences · 2022
    Review
  12. Article
  13. Review
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 at 1 institution in 1 country.

Naoki FukudaSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Toshiyasu OjimaSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan. tojima@wakayama-med.ac.jp.
Keiji HayataSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Masahiro KatsudaSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Junya KitadaniSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Akihiro TakeuchiSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Taro GodaSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Yoko UedaFirst Department of Medicine, School of Medicine, Wakayama Medical University, Wakayama, Japan.
Hiroshi IwakuraFirst Department of Medicine, School of Medicine, Wakayama Medical University, Wakayama, Japan.
Masahiro NishiFirst Department of Medicine, School of Medicine, Wakayama Medical University, Wakayama, Japan.
Hiroki YamaueSecond Department of Surgery, School of Medicine, Wakayama Medical University, 811-1, Kimiidera, Wakayama, 641-8510, Japan.
Wakayama Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLaparoscopic sleeve gastrectomy (LSG) for morbid obesity may improve gut microbiota balance and decrease chronic inflammation. This study examines the changes in gut microbiota and immune environment, including mucosal-associated invariant T cells (MAIT cells) and regulatory T cells (Treg cells) caused by LSG.

methodsTen morbidly obese patients underwent LSG at our institution between December 2018 and March 2020. Flow cytometry for Th1/Th2/Th17 cells, Treg cells and MAIT cells in peripheral blood and colonic mucosa and 16S rRNA analysis of gut microbiota were performed preoperatively and then 12 months postoperatively.

resultsTwelve months after LSG, the median percent total weight loss was 30.3% and the median percent excess weight loss was 66.9%. According to laboratory data, adiponectin increased, leptin decreased, and chronic inflammation improved after LSG. In the gut microbiota, Bacteroidetes and Fusobacteria increased after LSG, and indices of alpha diversity increased after LSG. In colonic mucosa, the frequency of MAIT cells increased after LSG. In peripheral blood, the frequency of Th1 cells and effector Treg cells decreased after LSG.

conclusionsAfter LSG for morbid obesity, improvement in chronic inflammation in obesity is suggested by change in the constituent bacterial species, increase in the diversity of gut microbiota, increase in MAIT cells in the colonic mucosa, and decrease in effector Treg cells in the peripheral blood.

Indexed as

Gastrointestinal MicrobiomeLaparoscopyMucosal-Associated Invariant T CellsObesity, MorbidAdiponectinGastrectomyHumansInflammationLeptinRNA, Ribosomal, 16ST-Lymphocytes, RegulatoryTreatment OutcomeWeight LossAdiponectinLeptinRNA, Ribosomal, 16SBariatric surgeryGut microbiotaLaparoscopic sleeve gastrectomyMAIT cellMetabolic surgeryTreg cell

Identifiers

PMID35182212
OpenAlexW4212883667

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.