Evidence map›Paper›PMID 34512234›Full record

ArticleFrontiers in neuroscience2021

Inflammation Disturbed the Tryptophan Catabolites in Hippocampus of Post-operative Fatigue Syndrome Rats

Shu Liu, Yue Cheng, Wei-Zhe Chen, Jin-Xiao Lv, Bei-Shi Zheng, Dong-Dong Huang, Xu-Fen Xia, Zhen Yu

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

6 citing papers in PubMed, 8 citations in OpenAlex.

  1. Trial
  2. Review
  3. Article
  4. Article
  5. Anti-fatigue effect of traditional Chinese medicines: A review.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2023
    Review
  6. 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

8 authors at 5 institutions in 2 countries.

Shu LiuDepartment of Biomedical Sciences, College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong, SAR China.
Yue ChengDepartment of Clinical Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, China.
Wei-Zhe ChenDepartment of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Jin-Xiao LvDepartment of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Bei-Shi ZhengDepartment of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Dong-Dong HuangDepartment of Gastrointestinal Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Xu-Fen XiaDepartment of Clinical Laboratory, Tongde Hospital of Zhejiang Province, Hangzhou, China.
Zhen YuDepartment of Surgery, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai, China.
First Affiliated Hospital of Wenzhou Medical University · CNTongde Hospital of Zhejiang Province · CNWenzhou Medical University · CNCity University of Hong Kong · HKTongji University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimPost-operative fatigue syndrome (POFS) is a common complication that prolongs the recovery to normal function and activity after surgery. The aim of the present study was to explore the mechanism of central fatigue in POFS and the anti-fatigue effect of ginsenoside Rb1.

methodWe investigated the association between inflammation, indoleamine 2,3-dioxygenase (IDO) enzyme, and tryptophan metabolism in the hippocampus of POFS rats. A POFS rat model was induced by major small intestinal resection. Rats with major small intestinal resection were administered ginsenoside Rb1 (15 mg/kg) once a day from 3 days before surgery to the day of sacrifice, or with saline as corresponding controls. Fatigue was assessed with the open field test (OFT) and sucrose preference test (SPT). ELISA, RT-PCR, Western blot, immunofluorescence, and high-performance liquid chromatography (HPLC) were used to test the inflammatory cytokines; p38MAPK, NF-κB/p65, and IDO enzyme expressions; and the concentrations of tryptophan, kynurenine, and serotonin, respectively.

resultOur results showed that POFS was associated with increased expressions of inflammatory cytokines and p38MAPK and higher concentrations of kynurenine and tryptophan on post-operative days 1 and 3; a lower serotonin level on post-operative day 1; and an enhanced translocation of NF-κB/p65 and the IDO enzyme on post-operative days 1, 3, and 5. Ginsenoside Rb1 had an improvement effect on these.

conclusionInflammatory cytokines induced by large abdominal surgery disturb tryptophan metabolism to cause POFS through the activation of the p38MAPK-NF-κB/p65-IDO pathway in the hippocampus. Ginsenoside Rb1 had an anti-fatigue effect on POFS by reducing inflammation and IDO enzyme.

Indexed as

ginsenoside Rb1IDOinflammatory cytokineNF-κB/p65p38MAPKpost-operative fatigue syndrome

Identifiers

PMID34512234
PMCPMC8427665
OpenAlexW3196827174

What OpenQuestion holds

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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.