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IFSCC MAGAZINE . Vol. 15, N° 1Mention de date : 01-02/2012Paru le : 12/03/2012 |
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Ajouter le résultat dans votre panierDevelopment anti-wrinkle cosmetics from the aril oil of momordica cochinchinesis (lour.) spreng in nanostructured lipid carriers / S. Natakankitkul in IFSCC MAGAZINE, Vol. 15, N° 1 (01-02/2012)
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Titre : Development anti-wrinkle cosmetics from the aril oil of momordica cochinchinesis (lour.) spreng in nanostructured lipid carriers Type de document : document électronique Auteurs : S. Natakankitkul, Auteur ; N. Nantalit, Auteur ; P. Sirisa-ard, Auteur ; S. Charumanee, Auteur ; K. Pholsongkram, Auteur Année de publication : 2012 Article en page(s) : p. 3-6 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge:Antirides
Antioxydants
Huiles et graisses végétales
Lipides
NanostructuresTags : 'Activité antioxydante' 'Momordica cochinchinesis lour spreng' 'Transport lipide nanostructuré' 'Anti-rides' Index. décimale : 668.5 Parfums et cosmétiques Résumé : The red arils of the ripe fruit Momordica cochinchinensis (Lour.) Spreng, which is indegenous to South-east Asia, are a natural source of carotenoids, particularly β-carotène and lycopene. However, carotenoids are susceptible to isomerization and oxidation during processing and storage. The objective of this study was therefore to obtain the carotenoid-containing aril oil stabilized in a novel cream preparation by developing aril oil-loaded nanostructured lipid carriers. Aril oil-loaded nanostructured lipid carriers were prepared by modified high pressure homogenization and the particle size, size distribution and zeta potential determined after 90 days at three different storage temperatures. Aril oil was encapsulated in the nanostructured lipie carriers in a concentration of 1 % and the formulations subjected to accelerated stability testing. HPLC analyses were performed to determine the β-carotène content of the aril oil-loaded nanostructured lipid carriers and other cream formulations. After application of the creams, the primary skin irritation was assessed by visual scoring, while wrinkle reduction was determined by skin profile analysis on the basis of the roughness (Ra and Rz), surface and volume parameters. The results showed that the cream containing 1% aril oil incorporated into nanostructured lipid carriers was more stable than the cream containing unloaded nanostructured lipid carriers. The physical characteristics of the cream base, the cream containing nanostructured lipid carriers were good after storage at various temperatures. Skin irritation tests revealed no irritation in normal volunteers with any of the formulations. However, the cream containing aril oil-loaded nanostructured lipid carriers exhibited a significantly higher capacity to reduce wrinkles than the cream containing aril oil alone Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13668
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Code-barres Cote Support Localisation Section Disponibilité 13718 - Périodique Bibliothèque principale Documentaires Disponible Antimicrobial activity of garcinia mangostana extract for anti-acne therapy / T. Krisdaphong in IFSCC MAGAZINE, Vol. 15, N° 1 (01-02/2012)
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Titre : Antimicrobial activity of garcinia mangostana extract for anti-acne therapy Type de document : texte imprimé Auteurs : T. Krisdaphong, Auteur ; S. Jedsadapaisid, Auteur Année de publication : 2012 Article en page(s) : p. 9-12 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acné L'acné (nom féminin) est une dermatose (maladie de la peau) inflammatoire des follicules pilosébacés (glandes sécrétant le sébum, à la racine des poils) avec formation de comédons.
Cette maladie de la peau est représentée dans sa forme la plus fréquente par l'acné polymorphe juvénile qui touche les adolescents, mais qui ne résume pas toutes les acnés. Il existe aussi des acnés exogènes d'origine professionnelle, médicamenteuse, cosmétique...
Antimicrobiens
Concentration minimale inhibitrice (antimicrobiens)En microbiologie, la concentration minimale inhibitrice (CMI) est la plus faible concentration d'un produit chimique, généralement un médicament, qui empêche la croissance visible d'une ou de plusieurs bactéries. La CMI dépend du micro-organisme considéré, de l'être humain affecté (in vivo uniquement) et de l'antibiotique lui-même.
La CMI est déterminée en préparant des solutions du produit chimique in vitro à diverses concentrations croissantes, en incubant les solutions avec des groupes séparés de bactéries en culture et en mesurant les résultats en utilisant une méthode de dilution standardisée (agar ou microdilution). Les résultats se classent ensuite comme "sensible", "intermédiaire" ou "résistant" à un antimicrobien particulier en utilisant un point d'arrêt. Les points d'arrêt sont des valeurs convenues, publiées dans les directives d'un organisme de référence, comme le US Clinical and Laboratory Standards Institute (CLSI), la British Society for Antimicrobial Chemotherapy (BSAC) ou le Comité européen sur les tests de sensibilité aux antimicrobiens (EUCAST). On a pu constater des écarts importants au niveau des points d'arrêt de divers pays européens au fil des ans, et entre ceux de l'EUCAST et du CLSI.
Alors que la CMI est la concentration la plus faible d'un agent antibactérien nécessaire pour inhiber la croissance visible, la concentration bactéricide minimale (CBM) est la concentration minimale d'un agent antibactérien qui entraîne la mort bactérienne. Plus la CMI est proche de la CBM, plus le composé est bactéricide.
La première étape de la découverte d'un médicament est souvent le dépistage d'un médicament candidat de banque de données pour les CMI contre les bactéries d'intérêt. En tant que tels, les CMI sont généralement le point de départ pour de plus grandes évaluations précliniques de nouveaux agents antimicrobiens. Le but de la mesure de la concentration minimale inhibitrice est de s'assurer que les antibiotiques sont choisis efficacement pour augmenter le succès du traitement. (Wikipedia)
Extraits de plantes:Extraits (pharmacie)
Peau -- Soins et hygièneIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The present study aims to evaluate the antimicrobial activity of the ethanolic extract of Garcinia mangostana peel on acne treatment. The alpha-mangostin content in G. mangostana peel was determined by an HPLC method. The minimum inhibitory concentration was utilized to measure the antimicrobial activity of the extract against Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Salmonella and Propionibacterum acnes, with the resulting minimum inhibitory concentrations being 0.0098, 0.0098, 0.0195, 0.0195 and 1.25mg/mL, respectively. The in vivo analysis of the extract was performed on femal volunteers with acne-prone skin. The results showed a significant decrease in acne lesions including comedones, microcysts, papules and pustules of 47.44%, with 83% of the volunteers reporting satisfaction and 9% intolerance sensations after 28 days of treatment. This result demonstrates that Garcinia mangostana peel extract has therapeutic potential as a treatment for acne lesions and therefore is an effective natural alternative ingredient for use in an anti-acne gel for ecological cosmetics. Note de contenu : - EXPERIMENTAL : Plant material and equipment - Preparation of the extract - Determination of the α-mangostin content by HPLC - Disc diffusion method - Analysis of the minimum inhibitory concentration - Clinical evaluation of acne treatment
- RESULTS AND DISCUSSION : Minimum inhibitory concentration analysis - Clinical evaluation of the extract for acne treatment -Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13669
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Code-barres Cote Support Localisation Section Disponibilité 13718 - Périodique Bibliothèque principale Documentaires Disponible In vivo study of age-related skin changes using in vivo confocal microscopy / Isabelle Imbert in IFSCC MAGAZINE, Vol. 15, N° 1 (01-02/2012)
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Titre : In vivo study of age-related skin changes using in vivo confocal microscopy Type de document : texte imprimé Auteurs : Isabelle Imbert, Auteur ; Yolène Ferreira-Guérif, Auteur ; Gilles Oberto, Auteur ; Arlette Berghi, Auteur ; Paul Mouser, Auteur ; Karine Cucumel, Auteur ; Nouha Domloge, Auteur Année de publication : 2012 Article en page(s) : p. 15-21 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Microscopie confocale
Vieillissement cutanéIndex. décimale : 668.5 Parfums et cosmétiques Résumé : In the past decade laser-scanning confocal microscopy was developed as a non-invasive method providing in vivo images of human skin in real time. The aim of the study was to observe and measure skin changes due to aging using in vivo confocal microscopy. Several parameters were analyzed such as stratum corneum and epidermal thickness, spinous and granular cell morphology, number, heigh and morphology of dermal papillae, and finally the collagen aspect. Twenty-five volunteers aged 20 to 70 were enrolled in this study. Calculation of the correlation coefficient (r) demonstrated that the stratum corneum thickness and the epidermal thickness were very strongly linked to age. Observed with aging were cell disorganization, cell spreading as well as numerous cells showing irregular shapes and vacuoles. The number and height of dermal papillae showed a statistically significant reversed correlation with aging, suggesting that dermal papillae are a good indicator of aging. In the younger groups collagen bundles were compact and dense, while in older groups filiform collagen bundles were observed. Finally, based on the method previously described, we assayed compound IV08.009, a peptide designed to improve the epidermal niche, in an in vivo double blind study. We showed significant in vivo benefits such as an increase in the number of papillae and in the theoretical age in the group of volunteers after 28 days of treatment. Note de contenu : - EXPERIMENTAL : Methodology - Volunteers - Measurement of stratum corneum thickness - Measurement of epidermal thickness - Number and height of dermal papillae - Statistical analysis - Clinical study
- RESULTS : Epidermal and stratum corneum thickness - Measurement of dermal papillae (heigh and number) - Observation of collagen fibers - Benefit of biofunctional compound IV08.009 for dermal papillaPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13670
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Code-barres Cote Support Localisation Section Disponibilité 13718 - Périodique Bibliothèque principale Documentaires Disponible In vivo anti-aging efficacy of a cyclic peptide composition / Ruediger Graf in IFSCC MAGAZINE, Vol. 15, N° 1 (01-02/2012)
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Titre : In vivo anti-aging efficacy of a cyclic peptide composition Type de document : document électronique Auteurs : Ruediger Graf, Auteur ; Karl-August Reiffen, Auteur ; Soheila Anzali, Auteur ; Ulrike Heinrich, Auteur ; Hagen Tronnier, Auteur ; Hansjürgen Driller, Auteur ; Frank Pfluecker, Auteur Année de publication : 2012 Article en page(s) : p. 23-27 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge:Antirides
Intégrine
Matrice extracellulaire
Peptides cycliquesIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Aging affects the composition and morphological structure of the different compartments of the skin. Integrins, as an important family of transmembrane receptors, play a key role in cell-matrix interactions and are involved in cell signaling. Binding of specific ligands within the extracellular matrix to these receptors is a crucial step to maintain a vital tissue structure. For this reason a selective cyclic peptide containing an arginine-glycine-aspartic acid (RGD) sequence was designed for cosmetic applications.
The objective of the present work was to evaluate the binding efficiency of different RGD peptides to specific integrins. The cyclic RGD peptide was tested in a placebo-controlled study with human volunteers with respect to its anti-aging efficacy in vivo. The results of the ligand inhibition assay with immobilized integrins clearly demonstrated that only the cyclic conformation of the RGD motif motively binds to the integrin receptors In terms of anti-aging properties, this in vivo trial confirmed the results of previous in vitro investigations where a positive effect on wrinkle reduction was observed. Our present work again supports the hypothesis that this specific RGD peptide composition successfully mimics the biological function of extracellular matrix proteins by activating signaling pathways and targets involved in the prevention of aging.Note de contenu : - EXPERIMENTAL : Ligand inhibition assay with immobilized integrins - Statistical evaluation of the in vivo data
- RESULTS AND DISCUSSION : Ligand inhibition assay - In vivo volunteer study : impact on wrinkle volume and anti-aging efficacyPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13671
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Code-barres Cote Support Localisation Section Disponibilité 13718 - Périodique Bibliothèque principale Documentaires Disponible What is the social role of cosmetics ? / Pinky G. Purohit in IFSCC MAGAZINE, Vol. 15, N° 1 (01-02/2012)
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Titre : What is the social role of cosmetics ? Type de document : texte imprimé Auteurs : Pinky G. Purohit, Auteur Année de publication : 2012 Article en page(s) : p. 29-32 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cosmétique -- Industrie et commerce
Cosmétiques
Perception de soi
Rôle socialIndex. décimale : 668.5 Parfums et cosmétiques Résumé : The general, over simplistic prevailing attitude towards cosmetics is that they are used to aid or promote beauty. Beauty was only one aspect of the Greek word komes, which means harmony. Cosmetics also have social, philosophical, cultural, and historical aspects that go back from the times of the pharaohs, the Romans, the Greeks, and the Arabs, through the medieval and Elizatethan periods and into modern times. The cosmetic industry is one of the most flourishing industries in the world and helps to create jobs and research opportunities for thousands of people. This essay explores the social role of cosmetics through its effect on self-image, self-esteem, confidence, health and societal participation. Note de contenu : - Cosmetics and self-image
- Cosmetics, confidence and self-esteem
- Cosmetics and health
- Cosmetics and active citizenship
- Closing remarksPermalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13672
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