Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Photoaging"”.
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Involvement of TGF-beta in skin photoaging
… was to understand the role of TGF-[beta] in skin photoaging, especially in solar elastosis. Solar elastosis, the accumulation of elastotic material in the dermal extracelluar matrix, is a major hallmark of photoaging. However, the mechanisms by which UV radiation causes solar elastosis are poorly …
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Histological Changes in Photorejuvenation Induced by 5-Aminolevulinic Acid Photodynamic Therapy in a Photoaged Mouse Model
Background: Photoaging is defined as the premature skin aging induced by ultraviolet (UV) irradiation, which is histologivally characterized by degradation of collagen fiber and accumulation of abnormal elastotic material in the dermis. Photodynamic therapy (PDT) is a noninvasive technique used in …
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Photorejuvenation Induced by 5-Aminolevulinic Acid Photodynamic Therapy in the Patients with Actinic Keratosis: A Histological Analysis
… radiation from the sun results in premature photoaging. Photodamaged skin is histologically characterized by reduced collagen synthesis, increased collagen destruction, and accumulation of abnormal elastotic material in the dermis. Photodynamic therapy (PDT) is one of many treatment options …
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Characterising the biological response to ultraviolet radiation
… UVA is thought to play a larger role in photoaging than UVB. Despite this current sum protection methods assess UVA protection only as a ratio of UVA: UVB that is blocked by the sun cream. Therefore it is desirable to have a more biologically relevant method to assess UVA protection …
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Tissue spectroscopic characterization based on fluorescence, second harmonic generation, and reflected light
… of human skin luminescence species and in a photoaging study of a skin equivalent model. Second, tri-modal microscopy combines two-photon fluorescence with second harmonic imaging and reflected light optical coherence microscopy. In this tri-modal system, fluorescence imaging maps fluorophore …
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AMPHOTERIC POLYAMIDOAMINES AS FUNCTIONAL SPECIALTY POLYMERS
… to enhance cotton photostability in accelerated photoaging tests under UVA-UVB irradiation. To gain deeper insight into this phenomenon, the photodegradation mechanism both in solution and in the solid state was investigated during the research period at the Université Clermont Auvergne. …
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Impact of Artificial UV Light Sources on the Skin
UV radiation has the ability to cause erythema, photoaging and photo-cancer. In 2010 Westminster wanted information on sources of artificial UV radiation in particular sunbeds. The objective of this study was to measure the spectral outputs from artifcial tanning units throughout England and to …
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Identification of Cathepsin B and L as Novel Uva Targets Upstream of Cutaneous Lysosomal-Autophagic Dysregulation
… to solar UVA plays a causative role in skin photoaging and photocarcinogenesis. Guided by exploratory difference-in-gel-electrophoresis (DIGE)-proteomics, we identified the thiol-dependent cysteine-proteases cathepsin B and cathepsin L as novel UVA-targets undergoing photo-oxidative …
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Mechanisms of Epidermal Growth Factor Receptor Regulation of Epidermal Proliferation and Skin Tumorigenesis in Response to Ultraviolet Irradiation.
… skin pathology including inflammation and photoaging.
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Investigation on the Molecular Mechanism of Photorejuvenation in Photodynamic Therapy
BACKGROUND: The photoaging of the skin is characterized by wrinkles, mottled pigmentation, telangiectasia and malignancies due to the effects of long-term UV exposure. Photodynamic therapy (PDT) is a therapeutic modality for cutaneous malignant and premalignant condition. Recently, several clinical …
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Factores relacionados con fotoenvejecimiento en pacientes de dos centros de atención en salud, 2018 - 2019
Antecedentes: El envejecimiento es un proceso natural que depende de diversos factores tanto intrínsecos como extrínsecos. Metodología: Explorar las características clínicas del fotoenvejecimiento y su relación con los diferentes factores, como la procedencia. Estudio observacional, transversal con …