Evidence map›Paper›PMID 26805811›Full record

ArticleMolecules (Basel, Switzerland)2016

Coumarins as Potential Antioxidant Agents Complemented with Suggested Mechanisms and Approved by Molecular Modeling Studies.

Yasameen K Al-Majedy, Dunya L Al-Duhaidahawi, Khalida F Al-Azawi, Ahmed A Al-Amiery, Abdul Amir H Kadhum, Abu Bakar Mohamad

Abstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Antioxidants: a comprehensive review.Archives of toxicology · 2025
    Review
  5. Article
  6. Article
  7. Review
  8. Coumarin: A natural solution for alleviating inflammatory disorders.Current research in pharmacology and drug discovery · 2024
    Review
  9. Review
  10. Article
  11. Oxypeucedanin and isoimperatorin extracted fromResearch in pharmaceutical sciences · 2022
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Review
  18. 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

6 authors.

Yasameen K Al-MajedyDepartment of Chemical & Process Engineering, University Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia. yasmin.chem79@gmail.com.
Dunya L Al-DuhaidahawiDepartment of Pharmaceutical Chemistry, College of Pharmacy, Kufa University, Najaf 31001, Iraq. dunialafta1982@yahoo.com.
Khalida F Al-AzawiBranch of Chemistry, Department of Applied Science, University of Technology (UOT), Baghdad 10001, Iraq. Khalidachemistry@gmail.com.
Ahmed A Al-AmieryDepartment of Chemical & Process Engineering, University Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia. dr.ahmed75@ukm.edu.my.
Abdul Amir H KadhumDepartment of Chemical & Process Engineering, University Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia. amir@eng.ukm.my.
Abu Bakar MohamadDepartment of Chemical & Process Engineering, University Kebangsaan Malaysia (UKM), Bangi, Selangor 43000, Malaysia. drab@eng.ukm.my.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Syntheses of coumarins, which are a structurally interesting antioxidant activity, was done in this article. The modification of 7-hydroxycoumarin by different reaction steps was done to yield target compounds. Molecular structures were characterized by different spectroscopical techniques (Fourier transformation infrared and nuclear magnetic resonance). Antioxidant activities were performed by using various in vitro spectrophometric assays against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and hydrogen peroxide (H2O2). All compounds exhibited high efficiency as antioxidants compared to ascorbic acid. The highest efficiency scavenging activity was found for compound 3 (91.0 ± 5.0), followed by compounds 2 and 4 (88.0 ± 2.00; and 87.0 ± 3.00). Ascorbic acid C was used as a standard drug with a percentage inhibition of 91.00 ± 1.5. The mechanism of the synthesized compounds as antioxidants was also studied. Hartree-Fock-based quantum chemical studies have been carried out with the basis set to 3-21G, in order to obtain information about the three-dimensional (3D) geometries, electronic structure, molecular modeling, and electronic levels, namely HOMO (highest occupied molecular orbital) and LUMO (lowest unoccupied molecular orbital), to understand the antioxidant activity for the synthesized compounds.

Indexed as

AntioxidantsAscorbic AcidBiphenyl CompoundsCoumarinsHydrogen PeroxideModels, MolecularMolecular StructurePicrates1,1-diphenyl-2-picrylhydrazylAntioxidantsAscorbic AcidBiphenyl CompoundsCoumarinsHydrogen PeroxidePicratesantioxidant activitycoumarinDPPHH2O2

Identifiers

PMID26805811
PMCPMC6273302

What OpenQuestion holds

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LicenceCC BY
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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.