Evidence map›Paper›PMID 31795292›Full record

ArticleMarine drugs2019

Astaxanthin Suppresses Cigarette Smoke-Induced Emphysema through Nrf2 Activation in Mice.

Hiroaki Kubo, Kazuhisa Asai, Kazuya Kojima, Arata Sugitani, Yohkoh Kyomoto, Atsuko Okamoto, Kazuhiro Yamada, Naoki Ijiri, Tetsuya Watanabe, Kazuto Hirata and 1 more

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 55 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

11 authors at 1 institution in 1 country.

Hiroaki KuboDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.ORCID 0000-0002-5973-9745
Kazuhisa AsaiDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.ORCID 0000-0001-8400-863X
Kazuya KojimaDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Arata SugitaniDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Yohkoh KyomotoDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Atsuko OkamotoDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Kazuhiro YamadaDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Naoki IjiriDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Tetsuya WatanabeDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Kazuto HirataDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Tomoya KawaguchiDepartment of Respiratory Medicine, Graduate School of Medicine, Osaka City University, Osaka 545-8585, Japan.
Osaka City University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Oxidative stress plays an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). The activation of nuclear factor erythroid 2-related factor 2 (Nrf2) is a key cellular defense mechanism against oxidative stress. Recent studies have shown that astaxanthin protects against oxidative stress via Nrf2. In this study, we investigated the emphysema suppression effect of astaxanthin via Nrf2 in mice. Mice were divided into four groups: control, smoking, astaxanthin, and astaxanthin + smoking. The mice in the smoking and astaxanthin + smoking groups were exposed to cigarette smoke for 12 weeks, and the mice in the astaxanthin and astaxanthin + smoking groups were fed a diet containing astaxanthin. Significantly increased expression levels of Nrf2 and its target gene, heme oxygenase-1 (HO-1), were found in the lung homogenates of astaxanthin-fed mice. The number of inflammatory cells in the bronchoalveolar lavage fluid (BALF) was significantly decreased, and emphysema was significantly suppressed. In conclusion, astaxanthin protects against oxidative stress via Nrf2 and ameliorates cigarette smoke-induced emphysema. Therapy with astaxanthin directed toward activating the Nrf2 pathway has the potential to be a novel preventive and therapeutic strategy for COPD.

Indexed as

AnimalsBody WeightEmphysemaFemaleHeme Oxygenase-1LungMacrophagesMaleMembrane ProteinsMiceMice, Inbred C57BLNeutrophilsNF-E2-Related Factor 2SmokingXanthophyllsastaxanthineHeme Oxygenase-1Hmox1 protein, mouseMembrane ProteinsNfe2l2 protein, mouseNF-E2-Related Factor 2Xanthophyllsastaxanthinchronic obstructive pulmonary diseaseheme oxygenase-1nuclear factor erythroid 2-related factor 2oxidative stress

Identifiers

PMID31795292
PMCPMC6950584
OpenAlexW2990301916

What OpenQuestion holds

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LicenceCC BY
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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.