Evidence map›Paper›PMID 34741131›Full record

ArticleScientific reports2021

New chalcone derivatives as potential antimicrobial and antioxidant agent.

Emelda N Okolo, David I Ugwu, Benjamin E Ezema, Joseph C Ndefo, Florence U Eze, Chidimma G Ezema, James A Ezugwu, Oguejiofo T Ujam

Abstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 2 pooled it
–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

35 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  12. Design, synthesis, andRSC advances · 2025
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  16. One-pot synthesis ofChemical science · 2025
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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

8 authors.

Emelda N OkoloDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
David I UgwuDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria. izuchukwu.ugwu@unn.edu.ng.
Benjamin E EzemaDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
Joseph C NdefoDepartment of Science Laboratory Technology, University of Nigeria, Nsukka, Nigeria.
Florence U EzeDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
Chidimma G EzemaNational Center for Energy Research and Development, University of Nigeria, Nsukka, Nigeria.
James A EzugwuDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.
Oguejiofo T UjamDepartment of Pure and Industrial Chemistry, University of Nigeria, Nsukka, Nigeria.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Seven chalcone derivatives were synthesized by the Claisen-Schmidt condensation. The structures of the compounds were confirmed by spectral data (Ultraviolet/visible, infrared, nuclear magnetic resonance and mass spectroscopy). The compounds were tested for their in silico and in vitro antimicrobial and antioxidant activities. The molecular docking assessments showed that all the compounds exhibited good binding affinity with the target microorganism proteins but, compounds 6e and 6g showed better binding affinity compared with the standards. The antimicrobial test revealed that all the compounds screened were active against Staphylococcus aureus and Bacillus subtilis and had minimum inhibitory concentrations (MIC) between 0.4 and 0.6 mg/mL. Compounds 6a, 6c and 6d had moderate activities on Salmonella typhi. Compounds 6b and 6c had moderate activity on Escherichia coli. Compound 6c had moderate activity on Aspergillus niger while compounds 6a and 6e had poor activity. All the compounds except compound 6e had no inhibition against Pseudomonas aeruginosa. The in-vitro antioxidant activity was assessed using ethylenediaminetetraacetate (EDTA) as the standard. Compounds 6c, 6e and 6g gave excellent inhibitory activity better than the standard. Compound 6a gave good activity at 500 μg/mL and 1000 μg/mL concentrations but, below the standard at 250 μg/mL and no inhibition at 125 μg/mL. Compound 6d had good inhibition at 500 μg/mL and 1000 μg/mL but, no inhibition at 125 μg/mL and 250 μg/mL. Compound 6b was found to be inactive in all the concentrations. Absorption, distribution, metabolism and excretion properties of the compounds were assessed using SwissADME. The results of lead likeness showed that compound 6e is a lead-like molecule.

Indexed as

Anti-Infective AgentsAntioxidantsChalconesMicrobial Sensitivity TestsAnti-Infective AgentsAntioxidantsChalcones

Identifiers

PMID34741131
PMCPMC8571407

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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.