نتایج جستجو برای: photoaging of skin

تعداد نتایج: 21182582  

Journal: :Acta biochimica Polonica 2012
Chiasa Uragami Eiji Yamashita Andrew Gall Bruno Robert Hideki Hashimoto

The high antioxidant activity of astaxanthin has been attracted considerable attention in these days. One of the major antioxidant activities of this carotenoid is anti-photoaging. We have been focusing our attention on this particular issue. The anti-photoaging activity should be functioning in inner skin. In this study we tried to find out the fact that astaxanthin that has been swabbed on th...

Journal: :Dermatologic surgery : official publication for American Society for Dermatologic Surgery [et al.] 2010
Randal Pham

BACKGROUND Laxity and rhytidosis of eyelid skin as a result of photoaging is a frequent cosmetic concern. Fine lines and deep wrinkles may not be optimally addressed with traditional ablative carbon dioxide (CO(2)) resurfacing. Modern devices allow for surface fractional ablation and deep fractional ablation with narrow treatment columns that target deep dermal layers. OBJECTIVES To examine t...

2017
Yang Hee Hong Hyun-Sun Lee Eun Young Jung Sung-Hee Han Yooheon Park Hyung Joo Suh

BACKGROUND Abnormal activation of matrix metalloproteinases (MMPs) plays an important role in UV-induced wrinkle formation, which is a major dermatological problem. This formation occurs due to the degeneration of the extracellular matrix (ECM). In this study, we investigated the cutaneous photoprotective effects of Ultraflo L treated ginseng leaf (UTGL) in hairless mice. METHODS SKH-1 hairle...

Journal: :Journal of the American Academy of Dermatology 2011
Moetaz el-Domyati Tarek S el-Ammawi Walid Medhat Osama Moawad Donna Brennan My G Mahoney Jouni Uitto

BACKGROUND Multiple therapies involving ablative and nonablative techniques have been developed for rejuvenation of photodamaged skin. Monopolar radiofrequency (RF) is emerging as a gentler, nonablative skin-tightening device that delivers uniform heat to the dermis at a controlled depth. OBJECTIVE We evaluated the clinical effects and objectively quantified the histologic changes of the nona...

Journal: :European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences 2014
Xue-Xuan Feng Xiu-Ting Yu Wen-Jie Li Song-Zhi Kong Yu-Hong Liu Xie Zhang Yan-Fang Xian Xiao-Jun Zhang Zi-Ren Su Zhi-Xiu Lin

Ultraviolet (UV) irradiation, known to generate reactive oxygen species (ROS) excessively and elicit inflammatory response, is a potent inducer for skin photoaging. Overproduction of ROS in conjunction with the resulting inflammation stimulate the over-expression of matrix metalloproteinases (MMPs), which in turn causes degradation of extracellular matrix, leading finally to coarse wrinkling, d...

Journal: :The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology 2010
Young-Suk Cho Kyung-Hoon Lee Jong-Wan Park

Epidermal keratinocytes overgrow in response to ultraviolet-B (UVB), which may be associated with skin photoaging and cancer development. Recently, we found that HIF-1alpha controls the keratinocyte cell cycle and thereby contributes to epidermal homeostasis. A further study demonstrated that HIF-1alpha is down-regulated by UVB and that this process is involved in UVB-induced skin hyperplasia. ...

2017
ROBERT BOWEN

Laxity and wrinkles of the lower eyelid skin are common manifestations of photoaging. They often appear earlier on the eyelids than on adjacent facial skin. The pulsed CO2 laser has been shown to tighten loose skin and reduce wrinkles in the periorbital region (Fitzpatrick 1996). The authors of this study suggested that the improvements were due to tissue-heating effects that vaporized intracel...

Journal: :Archives of dermatology 2009
Dana L Sachs Sewon Kang Craig Hammerberg Yolanda Helfrich Darius Karimipour Jeffrey Orringer Timothy Johnson Ted A Hamilton Gary Fisher John J Voorhees

OBJECTIVE To examine clinical and molecular changes after topical fluorouracil treatment of photodamaged human facial skin for actinic keratoses. DESIGN Nonrandomized, open-label 2-week treatment with fluorouracil cream, 5%, followed by clinical and molecular evaluation. SETTING Academic referral center. PATIENTS Twenty-one healthy volunteers, 56 to 85 years old, with actinic keratoses an...

Journal: :Acta dermatovenerologica Croatica : ADC 2007
Franjo Gruber Vesna Peharda Marija Kastelan Ines Brajac

This overview highlights the risk of skin diseases arising in workers exposed to ultraviolet radiation (UVR) at their workplace. There is a plethora of skin manifestations in outdoor workers such as seamen, fishermen, farmers after acute intense or long-term exposure to solar UVR, but some cutaneous diseases may also develop in indoor workers exposed to artificial sources. In recent years, inve...

Journal: :Oncology reports 2009
Pascale Quatresooz Emmanuelle Xhauflaire-Uhoda Claudine Piérard-Franchimont Gérald E Piérard

Skin weathering and photoaging of the balding scalp have not attracted much investigative attention so far. However, the concept of field cancerization, in particular actinic field carcinogenesis, is likely applicable to this part of the body. The aim of the study was to finetune the epidermal actinic changes present on hairlessness scalp. The ultraviolet light-enhanced visualization (ULEV) met...

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