Evidence map›Paper›PMID 32629814›Full record

ArticleMarine drugs2020

Laminarin Attenuates Ultraviolet-Induced Skin Damage by Reducing Superoxide Anion Levels and Increasing Endogenous Antioxidants in the Dorsal Skin of Mice.

Ji Hyeon Ahn, Dae Won Kim, Cheol Woo Park, Bora Kim, Hyejin Sim, Hyun Sook Kim, Tae-Kyeong Lee, Jae-Chul Lee, Go Eun Yang, Young Her and 4 more

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.1field-weighted citation impact, top 5% 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

25 citing papers in PubMed, 49 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

14 authors at 5 institutions in 1 country.

Ji Hyeon AhnDepartment of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Korea.
Dae Won KimDepartment of Biochemistry and Molecular Biology, and Research Institute of Oral Sciences, College of Dentistry, Gangnung-Wonju National University, Gangneung, Gangwon 25457, Korea.
Cheol Woo ParkDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea.
Bora KimDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea.
Hyejin SimDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea.
Hyun Sook KimLeefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea.
Tae-Kyeong LeeDepartment of Biomedical Science, Research Institute of Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Korea.
Jae-Chul LeeDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea.
Go Eun YangDepartment of Radiology, Kangwon National University Hospital, Chuncheon, Gangwon 24289, Korea.
Young HerDepartment of Dermatology, Kangwon National University Hospital, Kangwon National University School of Medicine, Chuncheon, Gangwon 24289, Korea.
Joon Ha ParkDepartment of Anatomy, College of Korean Medicine, Dongguk University, Gyeongju, Gyeongbuk 38066, Korea.
Tae Heung SimLeefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea.
Hyun Sam LeeLeefarm Co., Ltd., Hongcheon, Gangwon 25117, Korea.
Moo-Ho WonDepartment of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Korea.ORCID 0000-0002-7178-6501
Kangwon National University · KRHallym University · KRKangwon National University Hospital · KRDongguk University · KRGangneung–Wonju National University · KR

Funding

2019 Industry Research Grant C1014940-01-01
6 · The paper itself

Abstract

A number of studies have demonstrated that marine carbohydrates display anti-oxidant, anti-melanogenic, and anti-aging activities in the skin. Laminarin (LA), a low-molecular-weight polysaccharide, is found in brown algae. The benefits of LA in ultraviolet B (UVB) induced photodamage of the skin have not been reported. The aim of this study was to investigate the effects of pre-treated LA on histopathological changes and oxidative damage in mouse dorsal skin on day 5, following repeated UVB exposure. Histopathology, Western blot analysis and immunohistochemical studies showed that epidermal thickness in the UVB group was significantly increased; however, the thickness in the UVB group treated with LA (LA/UVB group) was less compared with that of the UVB group. Collagen fibers in the dermis of the UVB group were significantly decreased and destroyed, whereas, in the LA/UVB group, the density of collagen fibers was significantly increased compared with that of the UVB group. Oxidative stress due to superoxide anion production measured via dihydroethidium fluorescence staining was dramatically increased in the UVB group, whereas in the LA/UVB group, the oxidative stress was significantly decreased. Expressions of SOD1, glutathione peroxidase and catalase were markedly reduced in the UVB group, whereas in the LA/UVB group, they were significantly higher along with SOD2 than in the control group. Taken together, our results indicate that LA pretreatment prevents or attenuates skin damage, by decreasing oxidative stress and increasing antioxidant enzymes in mouse dorsal skin.

Indexed as

Ultraviolet RaysAnimalsAntioxidantsCatalaseGene Expression RegulationGlucansGlutathione PeroxidaseMiceSkinSuperoxide DismutaseSuperoxide Dismutase-1Superoxide Dismutase 2SuperoxidesAntioxidantsCatalaseGlucansGlutathione PeroxidaselaminaranSod1 protein, mouseSuperoxide DismutaseSuperoxide Dismutase-1Superoxide Dismutase 2Superoxidesantioxidantscollagen fiberepidermal thicknesslaminarinoxidative stressUVB

Identifiers

PMID32629814
PMCPMC7401269
OpenAlexW3038887049

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.