Evidence map›Paper›PMID 34463834›Full record

ReviewJournal of molecular modeling2021

Density functional theory studies of the antioxidants-a review.

Samira Mahmoudi, Mehrdad Mohammadpour Dehkordi, Mohammad Hossein Asgarshamsi

Abstract readReview
PubMed Publisher
In one paragraph

Review in Journal of molecular modeling, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.8field-weighted citation impact, top 4% 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

28 citing papers in PubMed, 79 citations in OpenAlex.

  1. Theoretical studies to understand theJournal of molecular modeling · 2026
    Article
  2. Article
  3. Article
  4. Oxidation-derived metabolites sustain the antioxidant network of quercetin.Journal of computer-aided molecular design · 2026
    Article
  5. Article
  6. Green Extraction ofFood science & nutrition · 2026
    Article
  7. Article
  8. Article
  9. Article
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  14. Review
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  18. Design of CScientific reports · 2025
    Article
  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

3 authors at 2 institutions in 1 country.

Samira MahmoudiDepartment of Microbial Biotechnology, School of Biological Sciences, Tehran North Branch, Islamic Azad University, Tehran, Iran.
Mehrdad Mohammadpour DehkordiDepartment of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran.
Mohammad Hossein AsgarshamsiDepartment of Medicinal Chemistry, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran. mhas.shamsi@gmail.com.
Isfahan University of Medical Sciences · IRIslamic Azad University North Tehran Branch · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The following review article attempts to compare the antioxidant activity of the compounds. For this purpose, density functional theory/Becke three-parameter Lee-Yang-Parr (DFT/B3LYP) methodology was carried out instead of using pharmacological methodologies because of economic benefits and high accuracy. This methodology filtrates the compounds with the lowest antioxidant activity. At first, the Koopmans' theorem was carried out to calculate some descriptors to compare antioxidants. The energy of the highest occupied molecular orbitals (HOMO) was accepted as the best indicator, and then some studies confirmed that the highest occupied molecular orbital/lowest unoccupied molecular orbital (HOMO-LUMO) energy gap is the more precise descriptor. Although it would be better to compare spin density distribution (SDD) on the oxygen of the corresponding radical in the polarizable continuum model (PCM) to evaluate their capability to chain reaction inhibition. Next, it was mentioned that in the multi-target directed ligands (MTDLs), the antioxidant is connected to other moieties in para positions to create better antioxidants or novel hybrid compounds. Indeed, SDD was introduced as a descriptor for MTDL antioxidant effectiveness. Then, the relation between antioxidants and aromaticity was investigated. The more the aromaticity of an antioxidant, the more stable the corresponding radical is. Subsequently, in preferred antioxidant activity, it was defined that the hydrogen atom transfer (HAT) mechanism is more favored in metabolism phase I. It has been seen that the solvent model can change the antioxidant mechanism. Therefore, the solvent model is more important than the chemical structure of antioxidants, and an ideal antioxidant should be evaluated in PCM for pharmacological evaluations.

Indexed as

Density Functional TheoryModels, MolecularAntioxidantsComputational ChemistryAntioxidantsAntioxidantHighest occupied molecular orbitalPolarizable continuum modelSpin density distribution

Identifiers

PMID34463834
OpenAlexW3198017723

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.