Evidence map›Paper›PMID 33174289›Full record

ArticleJournal of cosmetic dermatology2021

Investigation of partially myristoylated carboxymethyl chitosan, an amphoteric-amphiphilic chitosan derivative, as a new material for cosmetic and dermal application.

Haruyoshi Seino, Naoko Kawaguchi, Yukari Arai, Noriyasu Ozawa, Kazuhiko Hamada, Norio Nagao

Abstract read
In one paragraph

Article in Journal of cosmetic dermatology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

6 citing papers in PubMed.

  1. Review
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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

6 authors.

Haruyoshi SeinoCentral R & D Laboratory, Pias Corporation, Kobe, Japan.ORCID https://orcid.org/0000-0001-9293-5409
Naoko KawaguchiCentral R & D Laboratory, Pias Corporation, Kobe, Japan.
Yukari AraiCentral R & D Laboratory, Pias Corporation, Kobe, Japan.
Noriyasu OzawaCentral R & D Laboratory, Pias Corporation, Kobe, Japan.
Kazuhiko HamadaCentral R & D Laboratory, Pias Corporation, Kobe, Japan.
Norio NagaoFaculty of Life and Environmental Science, Prefectural University of Hiroshima, Shobara, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCationic amphiphilic chitosan derivatives can form polymeric micelles, which are useful cosmetic materials, but they form polyion complexes with anionic polymers, which can cause formulation difficulties.

aimsThis study aimed to evaluate the usefulness of partially myristoylated carboxymethyl chitosan, an amphoteric-amphiphilic chitosan derivative, as a new material for cosmetics in the absence of a surfactant comprising an anionic polymer.

methodsAn anionic polymer and 1,2-decanediol (an antimicrobial agent)-containing partially myristoylated carboxymethyl chitosan nanoemulsified lotion and glabridin (an antimelanogenic agent)-containing partially myristoylated carboxymethyl chitosan polymeric micelle were prepared using a pressure homogenization method. The release of interleukin-1α, cell viability, and melanogenesis inhibition was evaluated on a human skin model. Antimicrobial activity was evaluated using agar dilution method.

resultsA mixture of partially myristoylated carboxymethyl chitosan and carboxyvinyl polymer did not form a polyion complex, but it formed a hydrophilic gel. The anionic polymer-containing partially myristoylated carboxymethyl chitosan nanoemulsified formulation was stable, with no decrease in cell viability and horny layer exfoliation, which are typically observed with Tween 60. Compared with the formulation with methyl paraben (0.2%), the formulation to which 1,2-decanediol (0.05%) was added improved the antibacterial activity against methicillin-resistant Staphylococcus aureus and Propionibacterium acnes; however, no interleukin-1α upregulation was observed. The glabridin-containing partially myristoylated carboxymethyl chitosan polymeric micelles enhanced melanogenesis inhibition and percutaneous glabridin delivery to the epidermis compared with conventional emulsified micelles.

conclusionsThese results suggest that partially myristoylated carboxymethyl chitosan-forming polymeric micelles, in combination with 1,2-decanediol and glabridin, may be useful for surfactant-free cosmetic emulsions.

Indexed as

ChitosanCosmeticsMethicillin-Resistant Staphylococcus aureusDrug CarriersHumansMicellesParticle SizeChitosanCosmeticsDrug CarriersMicellesAmphiphilic carboxymethyl chitosanchitosancosmetic ingredienthuman skin modelpolymeric micelle

Identifiers

PMID33174289
PMCPMC8359406

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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.