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Photoaging

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https://www.readbyqxmd.com/read/28425237/the-efficacy-of-narrowband-uvb-treatment-in-pediatricvitiligo-a-retrospective-analysis-of-26-cases
#1
Serkan Yazici, Berrin Günay, Emel Bülbül Başkan, Kenan Aydoğan, Hayriye Saricaoğlu, Şükran Tunali
BACKGROUND/AIM: Narrowband UVB (Nb UVB) treatment is commonly used for the management of psoriasis and atopic dermatitis, and is less often used for vitiligo in children. The aim of this study was to evaluate the efficacy and short-term safety of Nb UVB phototherapy in children diagnosed with vitiligo retrospectively. MATERIALS AND METHODS: A total of 26 patients younger than 18 years with the diagnosis of vitiligo and managed with Nb UVB phototherapy as documented in archive records were evaluated...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28421656/oral-intake-of-boesenbergia-pandurata-extract-improves-skin-hydration-gloss-and-wrinkling-a-randomized-double-blind-and-placebo-controlled-study
#2
Do Un Kim, Hee Chul Chung, Changhee Kim, Jae-Kwan Hwang
BACKGROUND: Photoaging is a severe skin damage that occurs as a result of exposure to external elements, primarily ultraviolet (UV) irradiation. Chronically, UV-irradiated skin exhibits the signs of sunburn and hyperpigmentation with the destruction of connective tissues. Previously, Boesenbergia pandurata (B. pandurata) and its active compound panduratin A showed antiphotoaging activities in vitro and in vivo. OBJECTIVE: The aim of this study was to investigate the clinical efficacy of B...
April 18, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28418519/association-of-diet-with-skin-histological-features-in-uv-b-exposed-mice
#3
Tapan K Bhattacharyya, Yvonne Hsia, David M Weeks, Tatiana K Dixon, Jessica Lepe, J Regan Thomas
Importance: Long-term exposure to solar radiation produces deleterious photoaging of the skin. It is not known if diet can influence skin photoaging. Objectives: To study the influence of a calorie-restricted diet and an obesity diet in mice exposed to long-term UV-B irradiation to assess if there is an association between diet and histopathological response to UV-B irradiation. Design, Setting, and Participants: In this animal model study in an academic setting, the dorsal skin of SKH1 hairless mice receiving normal, calorie-restricted, and obesity diets was exposed to UV-B irradiation 3 times a week for 10 weeks and were compared with corresponding controls...
April 13, 2017: JAMA Facial Plastic Surgery
https://www.readbyqxmd.com/read/28416863/protective-effects-of-tetrahydrocurcumin-thc-on-fibroblast-and-melanoma-cell-lines-in-vitro-it-s-implication-for-wound-healing
#4
Mahendra Kumar Trivedi, Mayank Gangwar, Sambhu Charan Mondal, Snehasis Jana
The aim of this study was to investigate the role of tetrahydrocurcumin (THC) against various skin health parameters using in vitro human foreskin fibroblast and melanoma cell lines (i.e. HFF-1 and B16-F10). The study was assessed using cell viability by MTT assay, identification of extracellular matrix component in HFF-1 cell line (i.e. collagen, elastin and hyaluronic acid), melanin synthesis in B16-F10 cells, cell viability against UVB-induced stress in HFF-1 cells, and in vitro wound healing by the scratch assay...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28409880/osajin-inhibits-solar-uv-induced-cyclooxygenase-2-expression-through-direct-inhibition-of-rsk2
#5
Jong-Eun Kim, Yong-Seok Heo, Ki Won Lee
Solar ultraviolet light (sUV) has been shown to promote the development of skin disorders including inflammation, photoaging, and skin carcinogenesis. Osajin is the major bioactive isoflavone present in the fruit of Maclura pomifera, commonly referred to as the Osage orange. In this study, we observed that osajin inhibited sUV-induced cyclooxygenase (COX)-2 protein expression in both HaCaT and JB6 cells. COX-2 is a major mediator of skin inflammation. sUV activated the transcription factors nuclear factor- κB and activator protein-1 which, in turn, induces COX-2 expression...
April 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28404919/paeonol-suppresses-solar-ultraviolet-induced-skin-inflammation-by-targeting-t-lak-cell-originated-protein-kinase
#6
Peipei Xue, Yong Wang, Fanfan Zeng, Ruijuan Xiu, Jingwen Chen, Jinguang Guo, Ping Yuan, Lin Liu, Juanjuan Xiao, Hui Lu, Dan Wu, Huaxiong Pan, Mingmin Lu, Feng Zhu, Fei Shi, Qiuhong Duan
Excessive exposure to solar UV (SUV) is related with numerous human skin disorders, such as skin inflammation, photoaging and carcinogenesis. T-LAK cell- originated protein kinase (TOPK), an upstream of p38 mitogen-activated protein kinase (p38) and c-Jun N-terminal kinases (JNKs), plays an important role in SUV -induced skin inflammation, and targeting TOPK has already been a strategy to prevent skin inflammation. In this study, we found that the expression of TOPK, phosphorylation of p38 or JNKs was increased in human solar dermatitis tissues...
February 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28390258/diosmin-essential-oil-combination-for-dermal-photo-protection-using-a-lipoid-colloidal-carrier
#7
Rabab Kamel, Haidy Abbas, Ahmed Fayez
Solar irradiation induces skin inflammatory processes causing deleterious effects like premature ageing. In this study, the designed lipoid colloidal carrier (LCC) was loaded with Diosmin in combination with different essential oils, to be used as a topical photo-protective preparation. To investigate the ability of the essential oils to potentiate Diosmin effects, the Diosmin/essential oil-loaded LCCs (LCC2, LCC3 and LCC4) were compared to the Diosmin-loaded LCC (LCC1). The incorporated essential oils were those of Rosmarinus officinalis, Zingiber officinale or Vitis vinifera in LCC2, LCC3 and LCC4, respectively...
March 30, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28387707/alleviation-of-ultraviolet-b-induced-photodamage-by-coffea-arabica-extract-in-human-skin-fibroblasts-and-hairless-mouse-skin
#8
Po-Yuan Wu, Chi-Chang Huang, Yin Chu, Ya-Han Huang, Ping Lin, Yu-Han Liu, Kuo-Ching Wen, Chien-Yih Lin, Mei-Chich Hsu, Hsiu-Mei Chiang
Coffea arabica extract (CAE) containing 48.3 ± 0.4 mg/g of chlorogenic acid and a trace amount of caffeic acid was found to alleviate photoaging activity in human skin fibroblasts. In this study, polyphenol-rich CAE was investigated for its antioxidant and antiinflammatory properties, as well as for its capability to alleviate ultraviolet B (UVB)-induced photodamage in BALB/c hairless mice. The results indicated that 500 μg/mL of CAE exhibited a reducing power of 94.7%, ferrous ion chelating activity of 46...
April 7, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28382785/autologous-platelet-rich-plasma-versus-readymade-growth-factors-in-skin-rejuvenation-a-split-face-study
#9
Heba I Gawdat, Amira M Tawdy, Rehab A Hegazy, Mohga M Zakaria, Ryham S Allam
BACKGROUND: The escalating urge for a youthful-looking skin instigates continuous innovations with minimally invasive procedures. Readymade growth factors and autologous platelet-rich plasma (PRP) represent such therapeutic interventions. OBJECTIVE: Compare the efficacy and safety of PRP to readymade growth factors in skin rejuvenation. PATIENTS AND METHODS: Twenty adult females with Fitzpatrick skin types III-IV and Glogau photoaging types II and III were enrolled in this study...
April 5, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28373880/effects-of-multipolar-radiofrequency-and-pulsed-electromagnetic-field-treatment-for-face-and-neck-rejuvenation
#10
Thais Cristina Ferraz de Oliveira, Sheyla de Fatima Soares Rocha, Daniel Gontijo Ramos, Camila Gontijo Ramos, Michelle Vanessa Dos Anjos Carvalho, Mariana Gontijo Ramos
Skin aging is a gradual process that leads to wrinkle formation, laxity, and overall changes in skin appearance. In recent years, the demands to noninvasive treatments for facial rejuvenation increased, along with a variety of technologies and devices, such as radiofrequency. The present study aimed to evaluate the clinical effects of a multipolar radiofrequency and pulsed electromagnetic field treatment for face and neck rejuvenation. Eleven patients with mild to moderate grades of photoaging underwent eight radiofrequency and pulsed electromagnetic field treatment sessions, once a week...
2017: Dermatology Research and Practice
https://www.readbyqxmd.com/read/28352332/inhibitory-effect-of-salvia-plebeia-leaf-extract-on-ultraviolet-induced-photoaging-associated-ion-channels-and-enzymes
#11
You-Jin Chang, Dong-Ung Lee, Da Yeong Nam, Sung Min Cho, Seungug Hong, Joo Hyun Nam, Woo Kyung Kim
In traditional Korean/Asian medicine, Salvia plebeia R.Br. (S. plebeia) leaves are used to treat inflammatory diseases, including dermatitis, cough, asthma and toothache. Recently, S. plebeia leaves have been applied in skin care, as they promote skin lightening and elasticity. Therefore, the present study investigated the anti-aging effects of S. plebeia leaf methanolic extract and its fractions (dichloromethane, ethylacetate and n-butanol). The results of a whole-cell patch clamp analysis indicated that the methanolic extract mediated ultraviolet (UV)-induced photoaging-associated ion channels, transient receptor potential vanilloid 1 (TRPV1) and calcium release-activated calcium channel protein 1 (ORAI1) channel activity in HEK293T cells overexpressing TRPV1 or ORAI1 and STIM1...
February 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28349655/review-in-peeling-complications
#12
REVIEW
Izelda Maria Carvalho Costa, Patrick Silva Damasceno, Mariana Carvalho Costa, Keila Gabrielle Pati Gomes
Chemical peeling, a procedure wherein a chemical agent is applied to the skin to cause controlled destruction followed by regeneration and remodeling, is a dynamic tool for the treatment of acne, pigmentation issues, and photoaging [Journal of cutaneous and aesthetic surgery vol. 5 (2012) 254-260]. The results and complications are related to the depth of the procedure, with deeper peels producing more marked results and higher rates of complications. Complications are more likely with darker skin types, certain peeling agents, and sun exposure after treatment [Journal of cutaneous and aesthetic surgery vol...
March 27, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28329665/risk-factors-for-facial-telangiectasia
#13
Merel A Hamer, Luba M Pardo, David A Gunn, Tamar Nijsten
BackgroundTelangiectasia or red veins are one of the main features of facial skin aging. To date there are few studies investigating risk factors for telangiectasia. We investigated environmental risk factors in a population-based cohort study, using a digital continuous outcome measure.MethodsTelangiectasia were quantified digitally from standardized 3-dimensional facial photographs of 2886 North- European participants (56.8% female, median age 66.9) from the Rotterdam Study, a prospective population-based cohort study...
September 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/28327532/a-combination-of-soybean-and-haematococcus-extract-alleviates-ultraviolet-b-induced-photoaging
#14
Jieun Shin, Jong-Eun Kim, Kum-Ju Pak, Jung Il Kang, Tae-Seok Kim, Sang-Yoon Lee, Ik-Hyun Yeo, Jung Han Yoon Park, Jong Hun Kim, Nam Joo Kang, Ki Won Lee
Soybean-derived isoflavones have been investigated for their preventative effects against UV-induced symptoms of skin damage including wrinkle formation and inflammation. Haematococcus pluvialis is a freshwater species of Chlorophyta that contains high concentrations of the natural carotenoid pigment astaxanthin. Astaxanthin is known to be involved in retinoic acid receptor (RAR) signaling and previously been associated with the inhibition of activator protein (AP)-1 dependent transcription. Based on previous studies, we hypothesized that a combination of soy extract (SE) and Haematococcus extract (HE) may prevent UVB-induced photoaging through specific signaling pathways, as measured by UVB-induced wrinkling on hairless mice skin and expression changes in human dermal fibroblasts (HDFs)...
March 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28301979/short-time-uva-exposure-to-human-keratinocytes-instigated-polyunsaturated-fatty-acid-without-inducing-lipid-peroxidation
#15
Kin Sum Leung, Hok Fung Chan, Ho Hang Leung, Jean-Marie Galano, Camille Oger, Thierry Durand, Jetty Chung-Yung Lee
Short-term exposure to ultraviolet A (UVA) radiation can directly injure our skin through inflammatory response and indirectly through oxidative stress, triggering polyunsaturated fatty acid (PUFA) peroxidation in skin cell membrane and formation of DNA adduct, 8-hydroxy-2'-deoxyguanosine (8-OHdG). It is known that UVA exposure leads to photoaging, immunosuppression and skin cancer. However, the changes in PUFA and its oxidized metabolites, and cell cycle after short UVA exposure, are debatable. In this study, human keratinocytes (HaCaT) were exposed to low dose (5 J/cm(2)) and high dose (20 J/cm(2)) of UVA and assessed immediately, 8 h, 12 h, and 24 h post-treatment...
March 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28301572/far-infrared-suppresses-skin-photoaging-in-ultraviolet-b-exposed-fibroblasts-and-hairless-mice
#16
Hui-Wen Chiu, Cheng-Hsien Chen, Yi-Jie Chen, Yung-Ho Hsu
Ultraviolet (UV) induces skin photoaging, which is characterized by thickening, wrinkling, pigmentation, and dryness. Collagen, which is one of the main building blocks of human skin, is regulated by collagen synthesis and collagen breakdown. Autophagy was found to block the epidermal hyperproliferative response to UVB and may play a crucial role in preventing skin photoaging. In the present study, we investigated whether far-infrared (FIR) therapy can inhibit skin photoaging via UVB irradiation in NIH 3T3 mouse embryonic fibroblasts and SKH-1 hairless mice...
2017: PloS One
https://www.readbyqxmd.com/read/28295176/active-sunscreen-ingredients-in-australia
#17
REVIEW
Francis Hx Yap, Hock C Chua, Clare P Tait
UV radiation exposure is the major contributor to photocarcinogenesis and photoageing. Reducing UV radiation exposure can be achieved by using adequate sunscreen preparations. The use of sunscreen can significantly reduce the incidence of squamous cell carcinoma, actinic keratoses and invasive melanoma. In the Australian market over 900 sunscreen products are available, each with their own brand, formulation and ingredients. It can be difficult for dermatologists and consumers to determine which are the most effective and appropriate products to use...
March 10, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28293257/the-effectiveness-of-a-5-retinoic-acid-peel-combined-with-microdermabrasion-for-facial-photoaging-a-randomized-double-blind-placebo-controlled-clinical-trial
#18
Gita Faghihi, Saghi Fatemi-Tabaei, Bahareh Abtahi-Naeini, Amir Hossein Siadat, Giti Sadeghian, Mohammad Ali Nilforoushzadeh, Hamed Mohamadian-Shoeili
Background. Tretinoin has been shown to improve photoaged skin. This study was designed to evaluate the efficacy and tolerability of a 5% retinoic acid peel combined with microdermabrasion for facial photoaging. Materials and Methods. Forty-five patients, aged 35-70, affected by moderate-to-severe photodamage were enrolled in this trial. All patients received 3 sessions of full facial microdermabrasion and 3 sessions of either 5% retinoic acid peel or placebo after the microdermabrasion. Efficacy was measured using the Glogau scale...
2017: Dermatology Research and Practice
https://www.readbyqxmd.com/read/28287048/lycium-barbarum-polysaccharide-protects-human-keratinocytes-against-uvb-induced-photo-damage
#19
Huaping Li, Zhenjie Li, Liqian Peng, Na Jiang, Qing Liu, Erting Zhang, Bihua Liang, Runxiang Li, Huilan Zhu
Ultraviolet B (UVB) irradiation plays a key role in skin damage, which induces oxidative and inflammatory damages, thereby causing photoaging or photocarcinogenesis. Lycium barbarum polysaccharide (LBP), the most biologically active fraction of wolfberry, possesses significant antioxidative and anti-inflammatory effects on multiple tissues. In the present study, the photoprotective effects and potential underlying molecular mechanisms of LBP against UVB-induced photo-damage were investigated in immortalized human keratinocytes (HaCaT cells)...
February 2017: Free Radical Research
https://www.readbyqxmd.com/read/28286269/circular-rna-profiling-reveals-that-circcol3a1-859267-regulate-type-i-collagen-expression-in-photoaged-human-dermal-fibroblasts
#20
Yating Peng, Xiaojing Song, Yue Zheng, Xinyi Wang, Wei Lai
Production of type I collagen declines is a main characteristic during photoaging, but the mechanism is still not fully understood. Circular RNAs (circRNAs) are a class of newly identified non-coding RNAs with regulatory potency by sequestering miRNAs like a sponge. It's more stable than linear RNAs, and would be a useful tool for regulation of gene expression. However, the role of circRNAs in collagen expression during photoaging is still unclear. Here we performed deep sequencing of RNA generated from UVA irradiated and no irradiated human dermal fibroblasts (HDFs) and identified 29 significantly differentially expressed circRNAs (fold change ≥ 1...
April 29, 2017: Biochemical and Biophysical Research Communications
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