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3D modelling of Malassezia furfur skin interaction / Valérie Borrel in GLOBAL PERSONAL CARE, Vol. 23, N° 10 (11/2022)
[article]
Titre : 3D modelling of Malassezia furfur skin interaction Type de document : texte imprimé Auteurs : Valérie Borrel, Auteur ; Antoine Florin, Auteur ; Maëlle Garion, Auteur ; Christel Boudry, Auteur ; Michel Salmon, Auteur Année de publication : 2022 Article en page(s) : p. 51-53 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Dermatite sébhorrhéique
Dermatologie
Epiderme
Expression génique
Malassezia
Marqueurs biologiques
Modélisation tridimensionnelle
Relations hôte-champignonIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Straticell illustrates in a 3D model that Malassezia furfur invades the upper layers of the reconstructed epidermis with deleterious impacts on the barrier function, inducing an effective immune and inflammatory response, at both gene and protein levels.
Malassezia furfur is a lipid-dependent yeast naturally living on the skin. Despite its tolerance by the immune system under healthy condition, M. furfur overgrowth is associated with skin disorders such as dandruff.
Dandruff and its more severe form seborrheic dermatitis (SD), are common chronic inflammatory conditions characterized by an abnormal shedding of the skin in seborrheic areas of the body. While dandruff is restricted to the scalp, SD also affects oily rich areas of the face, causing itching, pruritic lesions and erythema.
Environmental and internal stress factors, dysregulation of the immune system and fungal colonization are amongst the main contributors to the development of SD and dandruff.1 It has been described that in dandruff, the quantity of Malassezia can increase up to 1.5 to 2 times its normal level.
This huge spread of yeast highly invades the epidermis, with detrimental consequences on the skin barrier function. Because the epidermis is the principal barrier against the penetration of chemicals and pathogens, any disruption increases microbial invasion and triggers both innate and acquired immune response.
Keratinocytes are playing a central role in this response by secreting key signaling molecules like antimicrobial peptides to overcome pathogenic infections, as well as various cytokines and interleukins to recruit inflammatory cells. In the case of Malassezia overgrowth, previous studies have reported the expression of some defensins and pro-inflammatory cytokines in response to infection.Note de contenu : - Colonization of RHE with M. furfur and barrier disruption
- Impact on gene expression
- Secretion of protein biomarkersEn ligne : https://drive.google.com/file/d/1zmSouLpZxhh3o0d_hPimbYgbku4otzBA/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=38707
in GLOBAL PERSONAL CARE > Vol. 23, N° 10 (11/2022) . - p. 51-53[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23657 - Périodique Bibliothèque principale Documentaires Disponible Anti-inflammatory and scalp care efficacy of a multi-herb extraction against malassezia furfur / Yina Lu in SOFW JOURNAL, Vol. 147, N° 11 (11/2021)
[article]
Titre : Anti-inflammatory and scalp care efficacy of a multi-herb extraction against malassezia furfur Type de document : texte imprimé Auteurs : Yina Lu, Auteur ; Jun Tian, Auteur Année de publication : 2021 Article en page(s) : p. 6-11 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anti-inflammatoires
Biomolécules actives
Cosmétiques
Cuir chevelu -- Soins et hygiène
Dermatite sébhorrhéique
Dermatites fongiques
Dermo-cosmétologie
Eczéma constitutionnel
Essais (technologie)
MalasseziaIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Malassezia furfur is a lipophilic and dermatological pathogenic yeast, which normally exists on human skin, and causes tinea versicolor, seborrhoeic dermatitis, and atopic dermatitis, especially on human scalp. The multi-herb extraction VGP which consists of Vitex trifolia fruit, Gentiana scabra, and Polygonum multiflorum root extract was used to study its effect of anti-inflammation, controlling sebum and dandruff on scalp care. Results showed that on the model of NHEK and THP1 cell inflammation induced by Malassezia furfur, VGP can inhibit the expression of interleukin 6 (IL-6), prostaglandin E2 (PGE-2), monocyte chemoattractant protein 1 (MCP-1) and interleukin 1β (IL-1β) in a dose-dependent manner under 0.01% to 0.125% concentration. On the inflammatory model of 3D reconstructed skin induced by H2O2, VGP significantly improved the cell viability and skin structure, and reduced the production of interleukin 8 (IL-8), PGE-2, and leukotriene B4 (LTB4). During 4 week’s treatment with test shampoo contained 0.5% VGP thrice a week on 16 subjects met with different symptom, VGP reduced the sebum content and TEWL, improved the redness, itching and dandruff on human scalp skin. Therefore, as a natural active ingredient VGP can play a role in scalp care and skin care by targeting inflammation. Note de contenu : - MATERIALS AND METHODS : VGP preparation - Maintenance of cells - Anti-inflammatory experiments on cells - Anti-inflammatory experiments on 3D reconstructed skin - Scalp care test in vivo - Statistical analysis
- RESULTS : Anti-inflammatory efficacy of VGP against M. furfur on cells - VGP inhibited the inflammation and cell damage on reconstructed skin - VGP reduced the itching and redness of human scalp skinEn ligne : https://drive.google.com/file/d/1fHsMXBQzG3UwovFof_wsjz_WoYMRYdbR/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=36987
in SOFW JOURNAL > Vol. 147, N° 11 (11/2021) . - p. 6-11[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 23031 - Périodique Bibliothèque principale Documentaires Disponible Characteristics of healthy and androgenetic alopecia scalp microbiome: Effect of Lindera strychnifolia roots extract as a natural solution for its modulation / Edith Filaire in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 42, N° 6 (12/2020)
[article]
Titre : Characteristics of healthy and androgenetic alopecia scalp microbiome: Effect of Lindera strychnifolia roots extract as a natural solution for its modulation Type de document : document électronique Auteurs : Edith Filaire, Auteur ; A. Dreux, Auteur ; Carine Boutot, Auteur ; Edwige Ranouille, Auteur ; Jean-Yves Berthon, Auteur Année de publication : 2020 Article en page(s) : p. 615-621 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alopécie
Cheveux -- Soins et hygiène
Cuir chevelu -- Soins et hygiène
Extraits de plantes:Extraits (pharmacie)
Malassezia
Microbiologie
Microbiote
Produits capillaires
Staphylococcus epidermisIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - Objective : The human scalp harbours a vast community of microbiotal mutualists. Androgenetic alopecia (AGA), the most common form of hair loss in males, is a multifactorial condition involving genetic predisposition and hormonal changes. The role of microflora during hair loss remains to be understood. After having characterized the scalp microbiota of 12 healthy male subjects and 12 AGA male subjects (D0), the aim of this investigation was to evaluate the capacity of Lindera strychnifolia root extract (LsR) to restore a healthy bacterial and fungal scalp microflora after 83 days (D83) of treatment.
- Material and methods : The strategy used was based on high-throughput DNA sequencing targeting the encoding 16S ribosomal RNA for bacteria and Internal Transcribed Spacer 1 ribosomal DNA for fungi.
- Results : Test analysis of relative abundance comparing healthy and AGA subjects showed a significant increase of Cutibacterim acnes (P < 0.05) and Stenotrophomonas geniculata (P < 0.01) in AGA subjects. AGA scalp condition was also associated with a significant (P < 0.05) decrease of Staphylococcus epidermidis relative abundance. A lower proportion of Malassezia genus in samples corresponding to AGA scalps and an increase of other bacterial genera (Wallemia, Eurotium) were also noted. At the species level, mean relative abundance of Malassezia restricta and Malassezia globosa were significantly lower (P < 0.05) in the AGA group. Eighty-three days of treatment induced a significant decrease in the relative abundance of C. acnes (P < 0.05) and S. geniculata (P < 0.01). S. epidermidis increased significantly (P < 0.05). At the same time, LsR treatment induced a significant increase in the proportion of M. restricta and M. globosa (P < 0.05).
- Conclusion : Data from sequencing profiling of the scalp microbiota strongly support a different microbial composition of scalp between control and AGA populations. Findings suggest that LsR extract may be a potential remedy for scalp microbiota re-equilibrium.Note de contenu : - MATERIALS AND METHODS : Preparation of extract - Subject recruitment - Treatment - Swab sample collection - DNA extraction - Amplification and sequencing of 16S RNA gene - Amplification and sequencing of ITS1 RNA gene - Statistical analysis
- RESULTS : Identification of bacteria communities: Taxonomic abundance analysis - Identification of fungal communities - Effect of LsR extract treatment on microbiome
- Table 1 : Mean relative abundance at the phylum, genus and species level at D0 (beginning of the study) for healthy and AGA group and after the LsR treatment for AGA group (D83)
- Table 2 : Mean relative abundance at the phylum and genus level at D0 (beginning of the study) for healthy and AGA group, and after the LsR treatment for AGA group (D83)
- Table 3 : Relative abundance at the species belonging to Malassezia species at D0 (beginning of the study) for healthy and AGA group and after the LsR treatment for AGA group (D83)DOI : https://doi.org/10.1111/ics.12657 En ligne : https://drive.google.com/file/d/1Q-DKEKbXzs_kXntEba2nTpj1xMHrkRdX/view?usp=shari [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35428
in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE > Vol. 42, N° 6 (12/2020) . - p. 615-621[article]Exemplaires
Code-barres Cote Support Localisation Section Disponibilité aucun exemplaire In vitro efficacy of antifungal agents alone and in shampoo formulation against dandruff-associated Malassezia spp. and Staphylococcus spp. / C. Leong in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 41, N° 3 (06/2019)
[article]
Titre : In vitro efficacy of antifungal agents alone and in shampoo formulation against dandruff-associated Malassezia spp. and Staphylococcus spp. Type de document : texte imprimé Auteurs : C. Leong, Auteur ; B. Schmid, Auteur ; A. Buttafuoco, Auteur ; M. Glatz, Auteur ; P. P. Bosshard, Auteur Année de publication : 2019 Article en page(s) : p. 221-227 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antifongiques
Antipelliculaires
Cosmétiques
Cuir chevelu -- Soins et hygiène
Dermo-cosmétologie
Malassezia
StaphylocoquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : - OBjectifs : Les pellicules sont une affection cutanée complexe caractérisée par des démangeaisons et une desquamation du cuir chevelu. Elles sont principalement attribuées à une colonisation excessive par des levures du genre Malassezia telles que Malassezia globosa et Malassezia restricta. Certaines études suggèrent également que des bactéries comme les staphylocoques sont impliquées dans la pathogenèse des pellicules. Nous désirions évaluer l'efficacité des traitements antipelliculaires en déterminant l'efficacité des antifongiques actifs seuls ou dans des formulations commerciales de shampooing contre Malassezia et les bactéries du genre Staphylococcus.
- Méthodes : Les concentrations minimales inhibitrices de trois antifongiques présents dans des shampooings antipelliculaires (pyrithione de zinc, kétoconazole et ciclopirox) ainsi que l'hamamélan, extrait d'hamamélis, ont été évaluées contre des espèces commensales de Malassezia et Staphylococcus en utilisant des méthodes de microdilution en culture. Dans des expériences simulant l'exposition au shampooing et les conditions de lavage sur le cuir chevelu, nous avons également testé la capacité à inhiber la croissance microbienne des agents décrits ci-dessus dans la formulation de shampooings (Head and Shoulders (H&S), Ketomed, Sebiprox, Erol Healthcare
Hair Shampoo, respectivement) avec un produit générique trouvé dans le commerce.
- Résultats : Les shampooings Ketomed et H&S ont été les traitements les plus efficaces contre Malassezia dans des essais in vitro et dans des expériences de simulation de lavage. Le shampooing Erol Healthcare était moins efficace contre Malassezia in vitro car nécessitant un temps de contact plus long pour obtenir une inhibition de la croissance de certaines espèces. Sebiprox a montré une efficacité variable dans les expériences de lavage et de temps de contact alors que le shampooing générique était le moins efficace pour inhiber la croissance de Malassezia et Staphylococcus.
- Conclusion : Ces résultats suggèrent que les patients avec des pellicules peuvent raisonnablement retirer un bénéfice de l'utilisation d'un shampooing antifongique spécifique bien que les résultats puissent varier selon les espèces microbiennes, la durée du contact et des composants entrant dans la formulation du shampooing.Note de contenu : - MATERIALS AND METHODS : Malassezia and bacteria culture - Broth microdilution assay for minimum inhnibitory concentration testing - Filter paper washing - Contact duration testing - Statistical analysis
- RESULTS : Sodium dodecyl sulphate, ketoconazole, ciclopirox and zinc pyrithione inhibit Malassezia growth in vitro - Head & Shoulders and Ketomed shampoo are effective against M. restricta and M. Globosa - Effect of contact time on shampoo efficacyDOI : 10.1111/ics.12525 En ligne : https://drive.google.com/file/d/1_NHoe1T6ohoxSiV1XDddyBcl-_Xz_vPg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32838
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Code-barres Cote Support Localisation Section Disponibilité 21111 - Périodique Bibliothèque principale Documentaires Disponible A novel patented ingredient targeting multifaceted mechanism for healthy scalp / Emily Yi in SOFW JOURNAL, Vol. 147, N° 4 (04/2021)
[article]
Titre : A novel patented ingredient targeting multifaceted mechanism for healthy scalp Type de document : texte imprimé Auteurs : Emily Yi, Auteur ; Debby Kuo, Auteur ; Snow Hsieh, Auteur Année de publication : 2021 Article en page(s) : p. 10-14 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antipelliculaires
Biomolécules actives
Cosmétiques
Cuir chevelu -- Soins et hygiène
Dermo-cosmétologie
HoméostasieL'homéostasie (du grec "hómoios", "similaire", et "stásis", "stabilité, action de se tenir debout") est la capacité que peut avoir un système quelconque (ouvert ou fermé) à conserver son équilibre de fonctionnement en dépit des contraintes qui lui sont extérieures.
L'homéostasie est la maintenance de l'ensemble des paramètres physico-chimiques de l'organisme qui doivent rester relativement constants (glycémie, température, taux de sel dans le sang, etc.).
MalasseziaIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Ahealthy scalp also means healthy hair and is free from troubling scalp conditions, like itchiness, redness, oiliness, flakiness, burning or painful sensation, hair damage and hair thinning. Good scalp health is closely associated with sebum normalization, microbiota balance and low inflammation. The latest proprietary ingredient Epi-Onâ„¢ developed by Corum aims to promote healthier scalp condition through its multifaceted properties to reduce sebum secretion, inhibit scalp yeast Malassezia, mitigate inflammation and downregulate 5-alpha reductase activity. 2% Azelamidopropyl Dimethyl Amine in serum delivered outstanding performance in clinical trial to significantly reduce sebum, redness, and dandruff after 14 days and 28 days. Advance research further indicates Azelamidopropyl Dimethyl Amine not only acts as an ideal solution for hair care formulation to help maintain scalp health and tackle scalp problems but also act as a cosmetic active to enhance skin recovery through epigenetic pathway. Note de contenu : - Fig. 1 : Three major mechanisms of scalp problem: sebum secretion, Malassiezia spp. proliferation and Inflammation
- Fig. 2 : The detail mechanism of lipids degradation via Malassezia spp. growth and dandruff production
- Fig. 3 : Epi-Onâ„¢ decreased intracellular lipid droplets in human primary sebocytes in a dose-dependent manner
- Fig. 4 : Epi-Onâ„¢ inhibits amount of Malassezia spp. in 24hr and 48hr at 0.1% and 0.5% treatment
- Fig. 5 : Epi-Onâ„¢ decreased two inflammatory cytokines IL-6 and IL-8 proteins on squalene peroxides stimulation
- Fig. 6 : 0.6%, 0.4%, and 0.2% Epi-Onâ„¢ decreased 5-alpha reductase activity to 67%, 81%, and 92%, respectively
- Fig. 7 : Epi-Onâ„¢ has a much better performance to significantly decrease the sebum level, decrease the redness and dandruff score
- Fig. 8 : A dandruff score standard criteria: 1 - VERY SLIGHT (observe carefully to see the microscale), 2 - SLIGHT (Mild dandruff on the scalp), 3 - MODERATE (more dandruff on the scalp), 4 - SEVERE (much dandruff, spread on scalp and hair) and 5 - VERY SEVERE (b) Compared to placebo, 4% Epi-On™ significantly decrease the redness after 14 and 28 daysEn ligne : https://drive.google.com/file/d/1JCJoWWJJXOve6gNVY7bR-3rUDj5YHDzj/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=35567
in SOFW JOURNAL > Vol. 147, N° 4 (04/2021) . - p. 10-14[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 22654 - Périodique Bibliothèque principale Documentaires Disponible Relationship between skin fungal and bacterial microbiomes and skin pH / Narifumi Akaza in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 45, N° 3 (06/2023)
PermalinkRevisiting dandruff / E. Xhauflaire-Uhoda in INTERNATIONAL JOURNAL OF COSMETIC SCIENCE, Vol. 28, N° 5 (10/2006)
PermalinkScalp care efficacy of a multi-herb extract / Yina Lu in GLOBAL PERSONAL CARE, Vol. 22, N° 6 (06/2021)
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