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Development of effects of plant extracts on the activity and expression of UVA-induced MMPs (matrix metalloproteases) / Dong-hwan Lee in IFSCC MAGAZINE, Vol. 7, N° 3 (07-08-09/2004)
[article]
Titre : Development of effects of plant extracts on the activity and expression of UVA-induced MMPs (matrix metalloproteases) Type de document : texte imprimé Auteurs : Dong-hwan Lee, Auteur ; Bum-chun Lee, Auteur ; Eun-jeong Yoon, Auteur ; Kyung-eun Lee, Auteur ; Sung-min Park, Auteur ; Hyeong-bae Pyo, Auteur ; Tae-boo Choe, Auteur Année de publication : 2004 Article en page(s) : p. 227-231 Note générale : Bibliogr. Langues : Anglais (eng) Tags : MMP UVA 'Extraits de plante' 'Tussilago farfara' 'Dicentra spectabilis' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The effects of several natural products on in vitro MMP-1 activity and UVA-induced MMP-1 synthesis in human dermal fibroblast (HDF) cultures were studied with the aim of developing novel anti-aging agents from natural sources. We measured MMP-1 activities by fluorescence assay using gelatin as substrates. In addition, UVA-induced MMP-1 expression was analyzed by enzyme-linked immunosorbent assay (ELISA) and gelatin-based zymography in HDF cultures, and RT-PCR techniques were used. The results showed a strong inhibitory effect of the extracts of Dicentra spectabilis and of the flower buds of Tussilago farfara. In a concentration of 0.05% (w/v), the extracts of the flower buds of Tussilago farfara and of Dicentra spectabilis inhibited MMP-1 activity by 92 and 87% respectively. At 0.1% (w/v), the extracts of the flower buds of Tussilago farfara and of Dicentra spectabilis suppressed the UVA-induced expression of MMP-1 by an amount similar to that with Vitamin C 200 μm. These results suggest that the extracts of Dicentra spectabilis and of the flower buds of Tussilago farfara effectively protect skin from UV-induced photoaging. Therefore, the extracts are thought to have potential as effective raw materials for anti-aging cosmetics. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=10480
in IFSCC MAGAZINE > Vol. 7, N° 3 (07-08-09/2004) . - p. 227-231[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003884 - Périodique Bibliothèque principale Documentaires Disponible Red algae extract improves barrier recovery / Jean-François Nicolaÿ in PERSONAL CARE EUROPE, Vol. 6, N° 5 (11/2013)
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Titre : Red algae extract improves barrier recovery Type de document : texte imprimé Auteurs : Jean-François Nicolaÿ, Auteur ; Mathilde Fréchet, Auteur Année de publication : 2013 Article en page(s) : p. 37-40 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Algues
Cosmétiques
Extraits de plantes:Extraits (pharmacie)
Peau -- Soins et hygiène
Plantes -- Emploi en cosmétologie
Produits hydratantsTags : 'L- citrullinyl' arginine' 'Acides aminés' Métabollites 'Osmolytes cryoprotecteurs' Dipeptide 'Algues rouge' 'Extraits de plante' 'Préventation la déshydratation' 'Produits hydratants' Filaggrine Glycérols Transglutaminase Aquaporine Index. décimale : 668.5 Parfums et cosmétiques Résumé : Taken together our results support the anti-dehydrating efficacy of Arct'Alg extract, which is consistent with its high content in water-retaining metabolites including citrulline, taurine, arginine, polyols (floridosides). Also, the study of late barrier function restoration events (epidermal cell proliferation and terminal differentiation), outlined that treatment with Arct'Alg also improves barrier function recovery, which was compromised by acetone. This additional benefit may be directly related to its moisturising properties, since water content of the very superficiel epidermal layers regulates the catalytic activity of a number of enzymes, including enzymes responsible for the processing of filaggrin precursor protein.13 Barrier recovery improvement may also be the consequence of metabolic activation induced by some constituents of the Arct'Alg extract. Note de contenu : - Filaggrin
- Aquaporin-3 (monitoring of barrier disruption early consequences)
- Transglutaminase 1 (TGMA) late monitoring of the recovery process)
- Nuclear antigen Ki67 (late monitoring of the recovery process)Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=19876
in PERSONAL CARE EUROPE > Vol. 6, N° 5 (11/2013) . - p. 37-40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 15686 - Périodique Bibliothèque principale Documentaires Disponible