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https://www.readbyqxmd.com/read/28810554/beneficial-effects-of-dried-pomegranate-juice-concentrated-powder-on-ultraviolet-b-induced-skin-photoaging-in-hairless-mice
#1
Su-Jin Kang, Beom-Rak Choi, Seung-Hee Kim, Hae-Yeon Yi, Hye-Rim Park, Chang-Hyun Song, Sae-Kwang Ku, Young-Joon Lee
The present study investigated the anti-aging effects of pomegranate juice concentrated powder (PCP) in hairless mice following 15 weeks of UVB irradiation (three times a week; 0.18 J/cm(2)). Skin moisturizing effects were evaluated through skin water, collagen type I and hyaluronan contents, as well as collagen type I and hyaluronan synthesis-related transcript levels. Wrinkle formation and edema scores (skin weights) were also assessed, along with skin matrix metalloproteinase (MMP)-1, MMP-9 and MMP-13 transcript levels...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810000/effect-of-a-blueberry-derived-antioxidant-matrix-on-infrared-a-induced-gene-expression-in-human-dermal-fibroblasts
#2
Susanne Grether-Beck, Jean Krutmann, Katherine Wilkens, Kasey D'Amato
<p>There is compelling evidence that Infrared A (IRA) from natural sunlight contributes to photoaging of human skin by inducing the expression of matrix metalloproteinase-1 (MMP-1) expression in human dermal fibroblasts. Corresponding mechanistic studies have shown that IRA does so by increasing the production of reactive oxygen species in irradiated cells. In the present study, we therefore asked if treatment of primary human skin fibroblasts with a blueberry-derived antioxidant matrix (BerrimatrixTM), which is employed as an active ingredient in commercially available skin care products that are topically applied, can prevent IRA-induced MMP-1 expression in these cells...
August 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28808403/the-possible-pre-and-post-uva-radiation-protective-effect-of-amaranth-oil-on-human-skin-fibroblast-cells
#3
Katarzyna Wolosik, Ilona Zareba, Arkadiusz Surazynski, Agnieszka Markowska
BACKGROUND: The health effects of Amaranth Oil (AO) are attributed to its specific chemical composition. That makes it an outstanding natural product for the prevention and treatment of ultraviolet (UV) irradiation-related pathologies such as sunburn, photoaging, photoimmunosuppression, and photocarcinogenesis. Most of the studies are taken on animal model, and there is a lack of research on the endogenous effect of AO on fibroblast level, where UVA takes it harmful place. OBJECTIVE: The aim of this study was evaluation if AO can protect or abolish UVA exposure effect on human skin fibroblast...
July 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/28793178/ultraviolet-and-infrared-induced-11-beta-hydroxysteroid-dehydrogenase-type-1-activating-skin-photoaging-is-inhibited-by-red-ginseng-extract-containing-high-concentrations-of-ginsenoside-rg3-s
#4
Jin-Ju Nam, Ji-Eun Min, Min-Ho Son, Jin-Hwan Oh, Seunghyun Kang
BACKGROUND: Sun irradiation is one of major extrinsic stressors responsible for premature skin aging through activation and expression of 11 beta hydroxysteroid dehydrogenase type 1 (11β-HSD1), which converts inactive cortisone to active cortisol. The aim of this study was to evaluate the inhibitory effects of red ginseng extract containing high concentrations of ginsenoside Rg3(S) (GERg3) on 11β-HSD1-induced skin photoaging. METHODS: To evaluate the inhibitory effects of GERg3 on ultraviolet (UV) or infrared (IR)-induced skin photoaging, human dermal fibroblasts or a normal human 3D skin model were exposed to UV or an IR...
August 9, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28762645/efficacy-and-tolerability-of-a-double-conjugated-retinoid-cream-vs-1-0-retinol-cream-or-0-025-tretinoin-cream-in-subjects-with-mild-to-severe-photoaging
#5
David H McDaniel, Christopher Mazur, Mitchell S Wortzman, Diane B Nelson
BACKGROUND: Topical retinoids are used to treat the visible signs of photoaging. While efficacious, they are irritating. OBJECTIVE: Evaluate the effectiveness and tolerability of a double-conjugate retinoid cream (AlphaRet Overnight Cream; AHA-Ret) in improving visible signs of photoaging vs 1.0% retinol or 0.025% tretinoin. METHODS: A 12-week, split-face, randomized trial was conducted in 48 female subjects, aged 30-65 years with mild to severe photodamage...
August 1, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28747297/photoaging-mobile-apps-as-a-novel-opportunity-for-melanoma-prevention-pilot-study
#6
Titus Josef Brinker, Dirk Schadendorf, Joachim Klode, Ioana Cosgarea, Alexander Rösch, Philipp Jansen, Ingo Stoffels, Benjamin Izar
BACKGROUND: Around 90% of melanomas are caused by ultraviolet (UV) exposure and are therefore eminently preventable. Unhealthy tanning behavior is mostly initiated in early adolescence, often with the belief that it increases attractiveness; the problems related to skin atrophy and malignant melanoma are too far in the future to fathom. Photoaging desktop programs, in which an image is altered to predict future appearance, have been successful in positively influencing behavior in adiposity or tobacco prevention settings...
July 26, 2017: JMIR MHealth and UHealth
https://www.readbyqxmd.com/read/28713942/ginsenoside-rc-protects-against-uvb%C3%A2-induced-photooxidative-damage-in-epidermal-keratinocytes
#7
Yuri Oh, Hye-Won Lim, Kwang Hark Park, Yu-Hua Huang, Ji-Young Yoon, Kyunghoon Kim, Chang-Jin Lim
Ginsenoside Rc (Rc) is a major ginsenoside isolated from Panax ginseng, and has exhibited pharmacological effects on skin cells. The present study aimed to investigate the putative skin‑protective properties of Rc, including its anti‑photoaging and barrier function‑protective effects, in human HaCaT keratinocytes exposed to UVB radiation. The protective properties of Rc were evaluated through the assessment of keratinocyte viability, reactive oxygen species (ROS) production, total glutathione (GSH) and superoxide dismutase (SOD) activity, caspase‑14, matrix metalloproteinase (MMP)‑2 and ‑9 activity, and MMP‑2, MMP‑9 and filament aggregating protein (filaggrin) expression following UVB irradiation...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28702744/plant-extracts-and-natural-compounds-used-against-uvb-induced-photoaging
#8
REVIEW
Maria Cavinato, Birgit Waltenberger, Giorgia Baraldo, Carla V C Grade, Hermann Stuppner, Pidder Jansen-Dürr
Skin is continuously exposed to a variety of environmental stresses, including ultraviolet (UV) radiation. UVB is an inherent component of sunlight that crosses the epidermis and reaches the upper dermis, leading to increased oxidative stress, activation of inflammatory response and accumulation of DNA damage among other effects. The increase in UVB radiation on earth due to the destruction of stratospheric ozone poses a major environmental threat to the skin, increasing the risk of damage with long-term consequences, such as photoaging and photocarcinogenesis...
July 12, 2017: Biogerontology
https://www.readbyqxmd.com/read/28697472/protective-effects-of-grape-stem-extract-against-uvb-induced-damage-in-c57bl-mice-skin
#9
Denis Nchang Che, Guang Hua Xie, Byoung Ok Cho, Jae Young Shin, Hyun Ju Kang, Seon Il Jang
Humans have become exposed to another form of a trait which is ultraviolet B (UVB) radiation reaching the earth's surface. This has become a major source of oxidative stress that ultimately leads to inflammation, DNA damage, photoaging and pigmentation disorders etc. Although several studies have shown the photo-protective role of different grape parts like the fruits and seeds, little or no data demonstrating the in vivo photo-protective role of grape stem, which is the most discarded part of the grape are available...
June 29, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28670257/changes-of-langerhans-cells-during-skin-ageing
#10
Barbara Zegarska, Katarzyna Pietkun, Paulina Giemza-Kucharska, Tomasz Zegarski, Maciej S Nowacki, Krystyna Romańska-Gocka
INTRODUCTION: During the process of skin ageing, changes occur in all skin layers and all cells, including the Langerhans cells. AIM: To assess whether any quantitative difference in the number of CD1a(+) LC cells/mm(2) and HLA-DR(+) LC cells/mm(2) as well as in their morphological features can be observed during the course of different types of skin ageing. MATERIAL AND METHODS: The study was conducted in a group of 60 women, which was divided into three independent groups: group I with symptoms of menopausal skin ageing, group II with symptoms of photoageing, group III with symptoms of chronological ageing...
June 2017: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28659037/myrcene-an-aromatic-volatile-compound-ameliorates-human-skin-extrinsic-aging-via-regulation-of-mmps-production
#11
Eunson Hwang, Hien T T Ngo, Bom Park, Seul-A Seo, Jung-Eun Yang, Tae-Hoo Yi
Myrcene is an aromatic volatile compound that is commercially well-known as a flavor ingredient in the food industry and a fragrance in the soap and detergent industry. Given the worldwide interest in natural antiphotoaging products, we investigated the protective effects of myrcene in UVB-irradiated human dermal fibroblasts (NHDFs). NHDFs were subjected to 144[Formula: see text]mJ/cm(2)of UVB irradiation. The expression of intracellular reactive oxygen species (ROS), matrix metalloproteinase-1 (MMP-1), MMP-3, interleukin-6 (IL-6), transforming growth factor (TGF-[Formula: see text]1) and type I procollagen were examined...
2017: American Journal of Chinese Medicine
https://www.readbyqxmd.com/read/28652906/photoepilation-and-skin-photorejuvenation-an-update
#12
Alessandro Martella, Mauro Raichi
The effectiveness of intense pulsed light (IPL) and laser devices is widely accepted in aesthetic dermatology for unwanted hair removal and treatment of a variety of cutaneous conditions. Overall, most comparative trials have demonstrated similar effectiveness for IPL and laser devices. Literature studies alternatively favor the IPL and laser concepts, but the incidence of severe local pain and side effects were generally lower with IPL. IPL phototherapy, already established as a sound option in photoepilation and treatment of photoaging, hyperpigmentation and other skin conditions, is also considered first choice in the phototherapy of skin vascular malformations...
March 13, 2017: Dermatology Reports
https://www.readbyqxmd.com/read/28646532/acquired-bilateral-telangiectasia-macularis-eruptiva-perstans-a-unique-clinical-feature-of-photodamaging-rather-than-a-subtype-of-cutaneous-mastocytosis
#13
Hye-Rim Moon, Young Jae Kim, Joon Min Jung, Chong Hyun Won, Mi Woo Lee, Jee Ho Choi, Sung Eun Chang
Telangiectasia macularis eruptiva perstans (TMEP) is a rare subtype of cutaneous mastocytosis, characterized by telangiectatic tan to brown macules on the trunk and extremities. Although TMEP has been descried as an uncommon disease in the literature, we often encounter patients with TMEP lesions in the outpatient clinic. We aimed to assess the clinical and histopathological characteristics of acquired bilateral TMEP, and the pathophysiological mechanism of acquired bilateral TMEP among these patients. We retrospectively reviewed 30 patients (28 men and 2 women) with acquired bilateral TMEP; multiple telangiectatic dark red to brown macules that were symmetrically distributed...
June 23, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28628688/effectiveness-of-a-nutraceutical-during-non-ablative-1927-nm-fractional-laser-on-patients-with-facial-hyperpigmentation-and-photoaging
#14
Joely Kaufman-Janette, Alex Cazzaniga, Annelyse Ballin, Rachel Swanson-Garcell
<p>Background: Fractional lasers have been proven to treat hyperpigmentation and photoaging. Little research has been done on the effects of supplements on healing post-laser resurfacing. A nutraceutical could offer the benefit of faster healing of the skin and fewer side effects.</p> <p>Objective: Evaluate the effectiveness of a nutraceutical associated with fractional 1927 nm laser in healing time and effectiveness on hyperpigmentation and photoaging.</p> <p>Methods & Materials: A prospective, randomized, evaluator-blinded, pilot study included Fitzpatrick skin types I-III patients with hyperpigmentation and photoaging randomly assigned to two groups...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28628681/changes-in-self-perceptions-of-photoaging-severity-and-skin-cancer-risk-after-objective-facial-skin-quality-analysis
#15
Yoon-Soo Cindy Bae, Edward Jong Bae, Joyce H Wang, Barbara A Gilchrest
<p>Background: Despite public education efforts, many people at risk for skin cancer do not practice safe sun behaviors.</p> <p>Objective: To determine whether machine-based evaluation of UV-induced alterations (VISIA scan) changes self-assessment of facial photoaging, skin cancer risk, and willingness to improve sun protective habits. In addition, to determine whether VISIA scan analysis reveals differences between those with versus without a history of skin cancer, men versus women, those older than 50 versus less than 50 years of age, and Fitzpatrick skin types I-III versus IV-VI...
May 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28625328/platelet-rich-plasma-for-the-treatment-of-photodamage-of-the-skin-of-the-hands
#16
J O Cabrera-Ramírez, A G Puebla-Mora, A González-Ojeda, D García-Martínez, J A Cortés-Lares, A R Márquez-Valdés, G I Contreras-Hernández, J Bracamontes-Blanco, J A Saucedo Ortiz, C Fuentes-Orozco
BACKGROUND: Platelet-rich plasma (PRP) provides growth factors that stimulate fibroblast activation and induce the synthesis of collagen and other components of the extracellular matrix. The objective of this study was to evaluate the effect of PRP in the treatment of photodamage of the skin of the hands. MATERIAL AND METHODS: Experimental study enrolling persons with photoaged skin on the dorsum of the hands (Glogau photoaging scale, type III, or Fitzpatrick wrinkle classification, type II) were included between August 2012 and January 2013...
June 16, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/28613256/strawberry-based-cosmetic-formulations-protect-human-dermal-fibroblasts-against-uva-induced-damage
#17
Massimiliano Gasparrini, Tamara Y Forbes-Hernandez, Sadia Afrin, Patricia Reboredo-Rodriguez, Danila Cianciosi, Bruno Mezzetti, Josè L Quiles, Stefano Bompadre, Maurizio Battino, Francesca Giampieri
Extreme exposure of skin to Ultraviolet A (UVA)-radiation may induce a dysregulated production of reactive oxygen species (ROS) which can interact with cellular biomolecules leading to oxidative stress, inflammation, DNA damage, and alteration of cellular molecular pathways, responsible for skin photoaging, hyperplasia, erythema, and cancer. For these reasons, the use of dietary natural bioactive compounds with remarkable antioxidant activity could be a strategic tool to counteract these UVA-radiation-caused deleterious effects...
June 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28602025/a-method-to-assess-the-protective-efficacy-of-sunscreens-against-visible-light-induced-pigmentation
#18
Luc Duteil, Jane Esdaile, Yves Maubert, Anne-Claire Cathelineau, Anne Bouloc, Catherine Queille-Roussel, Thierry Passeron
BACKGROUND: Until now, photoprotection of human skin has involved the development of sunscreens effective in the ultraviolet (UV) domain. During the last ten years, several studies have shown that besides the well-known damaging effects of UV, visible (400-700 nm) and even infrared light (> 700 nm) can induce damage which contributes to photoaging. Furthermore, many photodermatoses are also known to be triggered by visible light (VL). OBJECTIVE/METHOD: An in vivo method is proposed to assess the protective efficacy of sunscreens in the VL domain...
June 11, 2017: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/28599978/25-hydroxycholesterol-induces-both-p2x7-dependent-pyroptosis-and-caspase-dependent-apoptosis-in-human-skin-model-new-insights-into-degenerative-pathways
#19
Elodie Olivier, Mélody Dutot, Anne Regazzetti, Olivier Laprévote, Patrice Rat
Degenerative diseases are characterized by both cell death and inflammation, which involve different pathways such as apoptosis and pyroptosis. Oxysterols, oxidized derivatives of cholesterol, are known to act as key actors in degenerative disorders such as skin photoaging. We hypothesize that oxysterols could be implicated in either apoptosis or pyroptosis, or both. The aim of our study was first to quantify oxysterol levels in keratinocytes as a function of aging and UV irradiation. Second, we evaluated the effects of 25-OH oxysterol on apoptosis and pyroptosis hallmarks in keratinocytes...
June 23, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28599356/an-in-vitro-model-for-fibroblast-photoaging-comparing-single-and-repeated-uva-irradiations
#20
Wongnapa Nakyai, Aurasorn Saraphanchotiwitthaya, Celine Viennet, Philippe Humbert, Jarupa Viyoch
The current method for efficient evaluation of anti-photoaging compounds is an in vitro skin culture model using a single ultraviolet A (UVA) irradiation of fibroblasts. However, skin photoaging is caused by repeated exposure to UVA radiation. The objective of this study was to develop an appropriate model for in vitro skin photoaging by comparing the different effects of single (5 J/cm(2) ) and repeated exposures (5 J/cm(2) x 3 times) of fibroblasts to UVA irradiation. Our results demonstrated that a single and repeated exposure to UVA irradiation had different effects on fibroblasts...
June 9, 2017: Photochemistry and Photobiology
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