Evidence map›Paper›PMID 32308462›Full record

ArticleClinical, cosmetic and investigational dermatology2020

Effects of Skin Lightening Cream Agents - Hydroquinone and Kojic Acid, on the Skin of Adult Female Experimental Rats.

Joshua Oladele Owolabi, Oluseyi Sunday Fabiyi, Lola Adeola Adelakin, Miriammillicent Chinenyenwa Ekwerike

Open access · goldAbstract read
In one paragraph

Article in Clinical, cosmetic and investigational dermatology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
5.1field-weighted citation impact, top 5% 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

22 citing papers in PubMed, 45 citations in OpenAlex.

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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

4 authors at 1 institution in 2 countries.

Joshua Oladele OwolabiDepartment of Anatomy, Ben Carson School of Medicine, Babcock University, Ilishan-Remo, Nigeria.
Oluseyi Sunday FabiyiDepartment of Anatomy, Ben Carson School of Medicine, Babcock University, Ilishan-Remo, Nigeria.ORCID 0000-0003-4938-0908
Lola Adeola AdelakinDepartment of Anatomy, Ben Carson School of Medicine, Babcock University, Ilishan-Remo, Nigeria.ORCID 0000-0001-5271-4812
Miriammillicent Chinenyenwa EkwerikeDepartment of Anatomy, Ben Carson School of Medicine, Babcock University, Ilishan-Remo, Nigeria.
Babcock University · NG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSkin bleaching is the act of using steroid- and chemical-containing products to lighten the skin. Hydroquinone and kojic acid are often used in skin bleaching creams. Hydroquinone was suspected to be harmful. This study investigated the effects of kojic acid and hydroquinone on the skin of adult female Wistar rats and the potential use of aloe vera for amelioration. MATERIALS AND

methodsEighty [n=80] adult female Wistar rats with an average weight of 120 g were randomly divided into eight groups, marked A, B, C, D, E, F, G, and H. Group A animals served as the control group; group B was treated with 2% hydroquinone, group C was treated with 2% kojic acid, group D was treated with 4% hydroquinone, group E was treated with 4% kojic acid, group F was treated with 2% hydroquinone and 2% kojic acid, group G was treated with 4% hydroquinone and 4% kojic acid, and group H was treated with 4% hydroquinone, 4% kojic acid, and aloe vera. The preparations were applied to the tail skin and treatment lasted 28 days. Skin samples were excised and processed using H&E, Masson's trichrome, and p65 immunohistochemical assays on tissue sections.

resultsHydroquinone caused structural disruptions of the stratum corneum of the epidermis and the overlying keratin. p65 was also prominently expressed in the treated groups. Hydroquinone reduced skin thickness and caused epidermis disruption. DISCUSSION: The prominent expression of p65 in the sections indicated deleterious effects of hydroquinone. Kojic acid was not found to have deleterious effects. Aloe vera prevented extensive disruption of stratum corneum by hydroquinone. The use of hydroquinone in skin lightening creams might raise health concerns. Aloe vera could be protective against hydroquinone.

Indexed as

aloe verableaching productshydroquinonekojic acidskin

Identifiers

PMID32308462
PMCPMC7147621
OpenAlexW3015034914

What OpenQuestion holds

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LicenceCC BY-NC
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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.