Evidence map›Paper›PMID 33841672›Full record

ArticleAmerican journal of translational research2021

Astaxanthin provides neuroprotection in an experimental model of traumatic brain injury via the Nrf2/HO-1 pathway.

Fei Gao, Xiao Wu, Xiang Mao, Fei Niu, Bin Zhang, Jinqian Dong, Baiyun Liu

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.5field-weighted citation impact, top 18% 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

20 citing papers in PubMed, 22 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Article
  9. Review
  10. Fisetin exerts neuroprotective effectsFrontiers in pharmacology · 2024
    Article
  11. Article
  12. Natural Products as Modulators of Nrf2 Signaling Pathway in Neuroprotection.International journal of molecular sciences · 2023
    Review
  13. Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. Review
  19. Article
  20. 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

7 authors at 1 institution in 1 country.

Fei GaoBeijing Tiantan Hospital, Capital Medical University Beijing, 100070, China.
Xiao WuDepartment of Emergency, The First Affiliated Hospital of Anhui Medical University Hefei 230022, Anhui, China.
Xiang MaoDepartment of Neurosurgery, The First Affiliated Hospital of Anhui Medical University Hefei 230022, Anhui, China.
Fei NiuBeijing Neurosurgical Institute, Capital Medical University Beijing 100070, China.
Bin ZhangBeijing Tiantan Hospital, Capital Medical University Beijing, 100070, China.
Jinqian DongBeijing Tiantan Hospital, Capital Medical University Beijing, 100070, China.
Baiyun LiuBeijing Tiantan Hospital, Capital Medical University Beijing, 100070, China.
Capital Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAstaxanthin (ATX) is a carotenoid pigment with effective antioxidant, anti-inflammatory, antitumor and immunomodulatory actions. ATX has been proposed to exert neuroprotective effects and attenuate oxidative stress in mice after traumatic brain injury (TBI). The nuclear factor erythroid 2-related factor 2 (Nrf2)-heme oxygenase 1 (HO-1) signaling pathway is stimulated after TBI and activates a compensatory mechanism against TBI. Nevertheless, the effect of ATX on the pathophysiology of TBI in mice is limited. Our present study evaluated the neuroprotection afforded by ATX and the possible role of the Nrf2/HO-1 pathway in experimental TBI. MATERIALS AND

methodsMice were casually separated into 3 groups: the sham, TBI + vehicle, and TBI + ATX (100 mg/kg, intraperitoneally administered) groups. Neurobehaviors of the mice were assessed using the neurological severity scores (NSSs), the forced swimming test (FST) and the rotarod test. Levels of the Nrf2, HO-1, NAD(P)H: quinine oxidoreductase-1 (NQO1), cleaved caspase3 (C-caspase3), and superoxide dismutase1 (SOD1) proteins and levels of the Nrf2 and HO-1 mRNAs were assessed. In addition, Nrf2 nuclear import and apoptosis were measured after TBI.

resultsThe ATX treatment significantly improved the neurological status, promoted Nrf2 activation, and upregulated the expression of the Nrf2 and HO-1 mRNAs and the levels of the Nrf2, HO-1, and NQO1 proteins after TBI. The level of the SOD1 protein was decreased after TBI and increased after ATX treatment; however, the difference was not significant. ATX markedly reduced the level of the C-caspase3 protein and the number of TUNEL-positive cells, indicating that it exerted an antiapoptotic effect. Immunofluorescence staining confirmed that ATX promoted Nrf2 nuclear import.

conclusionsBased on our study, ATX possibly affords neuroprotection by activating the Nrf2/HO-1 signaling pathway in mice after TBI.

Indexed as

AstaxanthinneuroprotectionNrf2/HO-1 pathwaytraumatic brain injury

Identifiers

PMID33841672
PMCPMC8014407
OpenAlexW3155324224

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.