Evidence map›Paper›PMID 31182095›Full record

ArticleBMC complementary and alternative medicine2019

Inhibitory effects of Azadirachta indica secondary metabolites formulated cosmetics on some infectious pathogens and oxidative stress radicals.

Sunday O Okoh, Omobola O Okoh, Anthony I Okoh

Open access · goldAbstract read
In one paragraph

Article in BMC complementary and alternative medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
1.3field-weighted citation impact, top 18% 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

5 citing papers in PubMed, 13 citations in OpenAlex.

  1. A comprehensive review ofBiochemistry and biophysics reports · 2026
    Review
  2. High-throughput antimicrobial efficacy tests on a 384PillarPlate.World journal of microbiology & biotechnology · 2026
    Article
  3. Article
  4. Molecules (Basel, Switzerland) · 2024
    Article
  5. 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 1 institution in 2 countries.

Sunday O OkohSAMRC Microbial Water Quality Monitoring Center, University of Fort Hare, Alice, South Africa. sokoh@ufh.ac.za.ORCID http://orcid.org/0000-0002-8698-4543
Omobola O OkohDepartment of Pure and Applied Chemistry, University of Fort Hare, Alice, 5700, South Africa.
Anthony I OkohSAMRC Microbial Water Quality Monitoring Center, University of Fort Hare, Alice, South Africa.
University of Fort Hare · ZA

Funding

UNIVERSITY OF FORT HARE GOVAN MBEKI RESEARCH AND DEVELOPMENT CENTRE (GMRDC), South Africa C700
6 · The paper itself

Abstract

backgroundInfectious diseases, particularly those due to multi-drug resistant bacterial strains are almost impossible to cure globally. In this study we investigated the inhibitory effects of Azadirachta indica A. Juss secondary metabolites (AISM) formulated soap and cream for management of infectious and oxidative stress-related diseases (OSD).

methodsThe antibacterial, radical scavenging and cytotoxic effects of the neem cosmetics were examined by serial dilution, spectrophotometric and hemolytic techniques respectively, while the AISM in the essential oils (EOs) were elucidated by Gas chromatography-mass spectrometry (GC-MS) and retention index.

resultsThe neem cosmetics without AISM exhibited bacteriostatic effects against five reference bacterial strains (Staphylococcus aureus, Listeria ivanovii, Enterobacter cloacae, Mycobacterium smegmatis, and Streptococcus uberis) and two confirmed multi-drug resistant bacterial strains (Vibrio paraheamolyticues, Escherichia coli 180) at 0.80 mg/mL. Conversely, at less than 0.50 mg/mL the neem soap produced with AISM demonstrated bactericidal effects against most of these test pathogens linked to infectious diseases. The neem soap containing AISMs displayed noteworthy effects in scavenging radicals associated with OSD at < 1.76 mg/mL. The cosmetics were not toxic to human red blood cells below 0.70 mg/ mL. To our known, the AISM predominantly caryophyllene (30.02%), phytol (14.12%), elemene (13.40%) and linoleic acid (10.5%) exceptional inhibitory effects in neem cosmetics are reported here for the first time.

conclusionThe study indicates that apart from traditional uses of A. indica, the EO contained potent bioactive AISM and feasible as an antimicrobial agent, an alternative to synthetic antioxidant, likewise considered novel in the pharmaceutical, cosmetics industries and as food preservatives.

Indexed as

AzadirachtaAnti-Infective AgentsAntioxidantsCosmeticsGlyceridesMicrobial Sensitivity TestsPlant OilsSoapsTerpenesAnti-Infective AgentsAntioxidantsCosmeticsGlyceridesneem oilPlant OilsSoapsTerpenesAzadirachta indicaBactericidalNeem cosmeticsRadical scavengerSecondary metabolites

Identifiers

PMID31182095
PMCPMC6558881
OpenAlexW2952069128

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.