Evidence map›Paper›PMID 33921174›Full record

ArticleMarine drugs2021

Inhibition of SARS-CoV-2 Virus Entry by the Crude Polysaccharides of Seaweeds and Abalone Viscera In Vitro.

Sung-Kun Yim, Kian Kim, In-Hee Kim, Sang-Ho Chun, Tae-Hwan Oh, Jin-Ung Kim, Jung-Won Kim, Woo-Huk Jung, Ho-Sang Moon, Bo-Sung Ku and 1 more

Open access · goldAbstract read
In one paragraph

Article in Marine drugs, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
12.1field-weighted citation impact, top 1% 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

40 citing papers in PubMed, 68 citations in OpenAlex.

  1. Article
  2. Article
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  4. Efficacy of hypertonic nasal spray with algae in rhinosinusitis.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Observational
  5. Article
  6. Review
  7. Article
  8. Cyanobacterial and microalgae polymers: antiviral activity and applications.Brazilian journal of microbiology : [publication of the Brazilian Society for Microbiology] · 2024
    Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Article
  16. Animals : an open access journal from MDPI · 2023
    Article
  17. Article
  18. Review
  19. Review
  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

11 authors at 2 institutions in 1 country.

Sung-Kun YimMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.ORCID 0000-0003-0510-8152
Kian KimMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.
In-Hee KimMedical & Bio Decision (MBD) Co. Ltd., #B-8F, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Korea.
Sang-Ho ChunMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.
Tae-Hwan OhMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.
Jin-Ung KimMarine Bio Team, Wando County, 51, Chonghaejinnam-ro, Wando-eup, Wando-gun, Jeollanam-do 59124, Korea.
Jung-Won KimMedical & Bio Decision (MBD) Co. Ltd., #B-8F, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Korea.
Woo-Huk JungMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.
Ho-Sang MoonMedical & Bio Decision (MBD) Co. Ltd., #B-8F, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Korea.
Bo-Sung KuMedical & Bio Decision (MBD) Co. Ltd., #B-8F, 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Korea.
Kyoo-Jin JungMarine Biotechnology Research Center, Jeonnam Bioindustry Foundation, 21-7, Nonggongdanji 4Gil, Wando-eup, Wando-gun, Jeollanam-do 59108, Korea.
Jeonnam Bioindustry Foundation · KRBio-Medical Science (South Korea) · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Much attention is being devoted to the potential of marine sulfated polysaccharides as antiviral agents in preventing COVID-19. In this study, sulfated fucoidan and crude polysaccharides, extracted from six seaweed species (Undaria pinnatifida sporophyll, Laminaria japonica, Hizikia fusiforme, Sargassum horneri, Codium fragile, Porphyra tenera) and Haliotis discus hannai (abalone viscera), were screened for their inhibitory activity against SARS-CoV-2 virus entry. Most of them showed significant antiviral activities at an IC50 of 12~289 μg/mL against SARS-CoV-2 pseudovirus in HEK293/ACE2, except for P. tenera (IC50 > 1000 μg/mL). The crude polysaccharide of S. horneri showed the strongest antiviral activity, with an IC50 of 12 μg/mL, to prevent COVID-19 entry, and abalone viscera and H. fusiforme could also inhibit SARS-CoV-2 infection with an IC50 of 33 μg/mL and 47 μg/mL, respectively. The common properties of these crude polysaccharides, which have strong antiviral activity, are high molecular weight (>800 kDa), high total carbohydrate (62.7~99.1%), high fucose content (37.3~66.2%), and highly branched polysaccharides. These results indicated that the crude polysaccharides from seaweeds and abalone viscera can effectively inhibit SARS-CoV-2 entry.

Indexed as

AnimalsAntiviral AgentsCOVID-19GastropodaHEK293 CellsHumansInhibitory Concentration 50PolysaccharidesSARS-CoV-2SeaweedVirus InternalizationVisceraAntiviral AgentsPolysaccharidesabalone visceraantioxidantantiviral activityCOVID-19polysaccharideSARS-CoV-2seaweed

Identifiers

PMID33921174
PMCPMC8071526
OpenAlexW3152893066

What OpenQuestion holds

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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.