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Influencing the cutaneous carotenoid status and skin-physiological parameters by ingesting antioxidants in the form of curly-hale containing food supplements / J. Schleusener in SOFW JOURNAL, Vol. 144, N° 9 (09/2018)
[article]
Titre : Influencing the cutaneous carotenoid status and skin-physiological parameters by ingesting antioxidants in the form of curly-hale containing food supplements Type de document : texte imprimé Auteurs : J. Schleusener, Auteur ; Ceylan K. Nowbary, Auteur ; Maxim E. Darvin ; Silke Barbara Lohan ; Martina C. Meinke Année de publication : 2018 Article en page(s) : p. 2-9 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Antiâge
Antioxydants
CaroténoidesLes caroténoïdes sont des pigments plutôt orange et jaune répandus chez de très nombreux organismes vivants. Liposolubles, ils sont en général facilement assimilables par les organismes. Ils appartiennent à la famille chimiques des terpénoïdes, formés à partir de la polymérisation d'unités isoprènes à structure aliphatique ou alicyclique. Il est généralement admis qu'ils suivent des voies métaboliques similaires à celles des lipides. Ils sont synthétisés par toutes les algues, toutes les plantes vertes et par de nombreux champignons et bactéries (dont les cyanobactéries).
Collagène
Compléments alimentaires
Cosmétiques
Elasticité
Evaluation
Humidité
Mesure
Peau -- Rides
Peau -- Soins et hygiène
Spectroscopie de réflectance
StatistiqueIndex. décimale : 668.5 Parfums et cosmétiques Résumé : Antioxidants are important radical scavengers protecting the body from the consequences of oxidative stress. They have to
be ingested by food rich in fruits and vegetables or by food supplements. The effects of the intake of curly-kale containing food supplements on the skin are described in this paper. For this purpose, verum and placebo groups had been investigated for several months noninvasively in vivo by determining their cutaneous antioxidative status, their collagen-to-elastin index of the dermis, and various age-related skin parameters. While in the verum groups the cutaneous antioxidative status and the skin moisture increased significantly, only small changes were found in the placebo groups. The collagen content in the skin of the verum group showed a tendency towards increasing.
Besides a healthy nutrition, a selected supplementation consisting of low-dosed natural carotenoids at a phyllogical concentration can improve the antioxidative capacity of the skin, thus counteracting an age-related degradation of collagen I in the dermis.Note de contenu : - METHOD : Multiple spatially resolved reflectance spectroscopy (MSRRS) - Collagen-to-elastin index of the dermis (SAAID) - Wrinkle measurement - Elasticity - Skin moisture - Study design - Statistical evaluation
- RESULTS : Spatially resolved reflectance spectroscopy (MSRRS) - Collagen-to-elastin index of the dermis (SAAID) - Measurement of wrinkles - Elasticity - Skin moistureEn ligne : https://drive.google.com/file/d/13kmnwiC8XwELAzVPqsddjrkuyRTQHp-Q/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30951
in SOFW JOURNAL > Vol. 144, N° 9 (09/2018) . - p. 2-9[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20161 - Périodique Bibliothèque principale Documentaires Disponible Innovative sunscreen with cooling effect for protection in the VIS and NIR regions for Asian skin type / Alexandra Lan in SOFW JOURNAL, Vol. 144, N° 10 (10/2018)
[article]
Titre : Innovative sunscreen with cooling effect for protection in the VIS and NIR regions for Asian skin type Type de document : texte imprimé Auteurs : Alexandra Lan, Auteur ; Bin Chen, Auteur ; Lei Ye, Auteur ; Keesuh Lee, Auteur ; Nan Lu, Auteur ; Dongfang Kang, Auteur ; Jürgen Lademann, Auteur ; Sabine Schanzer, Auteur ; Silke Barbara Lohan, Auteur ; Martina C. Meinke, Auteur Année de publication : 2018 Article en page(s) : p. 54-61 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Agents rafraichissants
Antiradicalaire
Facteur de protection solaire
Formulation (Génie chimique)
Peau asiatique
Produits antisolaires
Protection contre le rayonnement infrarouge
Protection contre le rayonnement ultraviolet
StatistiqueIndex. décimale : 668.5 Parfums et cosmétiques Résumé : In view of the globally increasing incidence of skin cancer, sun exposure and the application of sunscreens are steadily gaining in importance. Today it is known that skin damage is caused not only by UV-induced erythema but also by increased amounts of free radicals that are formed by solar radiation in the visible and near infrared (NIR) spectral regions and sun protection could be different for the different skin types. The antioxidant capacity and the scattering properties of the formulation were determined as important protection beyond ultraviolet (UV) light. The radical protection in the visible and NIR regions was determined ex vivo using EPR spectroscopy. The cooling effect of the formulation was analyzed on Asian skin in vivo, and the NIR protection was investigated by measuring cutaneous carotenoids before and after NIR radiation. The company Pechoin was the 'first en¬terprise to develop a sunscreen for the skin types III — VI. This product protects efficiently both from UV and NIR solar radiation. Its formulation consists of a well-balanced selection of titanium dioxide pigments, highly efficient antioxidants as used in the traditional Chinese medicine, and coolants. Thanks to all these ingredients the concentration of radicals can be clearly reduced, especially in darker skin types. Note de contenu : - Subjects - Sunscreen
- Determination of the Radical Protection Factor (RPF) of the ingredients and the sunscreen sample
- Determination of the optical properties of the sunscreen sample
- Cooling effect in vivo
- SPF determination in vivo
- NIR protection in vivo
- Statistical analysis
- Table 1 : RPF and scattering coefficient µs' at 800 nm of the investigated formulation compared to previously investigated sunscreen (12) shown
- Fig. 1 : Optical properties absorption µa and scattering effective coefficient µs' of the new sunscreen between 450 and 800 nm
- Fig. 2 : Cumulative radical formation in the skin after irradiation with 71 mW in the VIS/NIR spectral range. Mean ± SEM, *** p ⩽ 0.001 ; statistically significant difference in relation to unprotected skin (untreated)
- Fig. 3 : Box plot of the radical production in the skin after 10 min VIS/NIR irradiation (*** p ⩽ 0.001)
- Fig. 4 : Skin temperature course measured before and during NIR irradiation (60mW/cm2). At treated area 2 mg/cm2 sunscreen was applied, n=10
- Fig. 5 : Relative carotenoid concentration in the skin, before and after NIR irradiation (60m/W/cm2) for untreated and sunscreen treated skin (2 mg/cm2), n=6En ligne : https://drive.google.com/file/d/1OlmTHFwrDGMPYLLEfhTDql9zd4WLTo1j/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31330
in SOFW JOURNAL > Vol. 144, N° 10 (10/2018) . - p. 54-61[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20515 - Périodique Bibliothèque principale Documentaires Disponible