Results 201 to 210 of about 26,069 (255)
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Journal of the American Academy of Dermatology, 1996
It is now recognized that intrinsic aging changes are distinct from those caused by habitual exposure to the sun (photoaging). Not only are these sun-induced alterations unsightly, but they also serve as a marker for patients at risk for developing skin cancer.
N H, Nicol, N A, Fenske
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It is now recognized that intrinsic aging changes are distinct from those caused by habitual exposure to the sun (photoaging). Not only are these sun-induced alterations unsightly, but they also serve as a marker for patients at risk for developing skin cancer.
N H, Nicol, N A, Fenske
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The measurement of photodamage
British Journal of Dermatology, 1992The use of non-invasive and invasive techniques for the assessment of human photodamaged skin is reviewed. Physical changes during photodamage and its treatment are best scored using a visual analogue scale rather than a short, non-equal interval scale.
R, Marks, C, Edwards
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Squamometry in acute photodamage
Skin Research and Technology, 1995Background: Ultraviolet Irradiation has been shown to elicit alterations in corneocyte adhesion.Purpose: To evaluate the early events in the changes of physical properties of the stratum corneum following a single ultraviolet B (UVB) irradiation.Method: Squamometry (Chroma C* of D‐Squames) was used in 40 volunteers to assess the variations in ...
G E, Piérard, C, Piérard-Franchimont
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British Journal of Dermatology, 1992
Extensive well-controlled clinical studies performed over the past 5 years have demonstrated a consistent, dose-dependent, statistically significant improvement in the appearance of photodamaged skin after 3-6 months of daily treatment with topical 0.001-0.1% tretinoin cream.
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Extensive well-controlled clinical studies performed over the past 5 years have demonstrated a consistent, dose-dependent, statistically significant improvement in the appearance of photodamaged skin after 3-6 months of daily treatment with topical 0.001-0.1% tretinoin cream.
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Photodamage determination of human hair
Journal of Photochemistry and Photobiology B: Biology, 2012Sunlight on human hair causes photo-degradation. This results in bleaching due to melanin oxidation through free radicals, and induces keratin impairment. Protein degradation, tryptophan degradation, lipidic peroxidation and electron paramagnetic resonance can be used to evaluate proteic and lipidic photodecomposition and free radical formation in hair
Estibalitz, Fernández +5 more
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Algal Research, 2018
Abstract Microalgae naturally are exposed to changing light conditions. While a higher light intensity can promote a faster growth rate, it also can cause photodamage that leads to a temporary or semi-permanent decline in growth rate. We developed a model of photosynthetic growth including photoacclimation, reversible photodamage to photosystem II ...
Levi L Straka, Bruce E Rittmann
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Abstract Microalgae naturally are exposed to changing light conditions. While a higher light intensity can promote a faster growth rate, it also can cause photodamage that leads to a temporary or semi-permanent decline in growth rate. We developed a model of photosynthetic growth including photoacclimation, reversible photodamage to photosystem II ...
Levi L Straka, Bruce E Rittmann
exaly +2 more sources
Cutaneous photodamage in schizophrenia patients
Photodermatology, Photoimmunology & Photomedicine, 2008Background: Schizophrenia patients frequently engage in unhealthy lifestyle behaviors. The adverse effects of sun exposure on the human skin are well studied but only sparse data in this area have been focused on schizophrenia patients.Aim: To assess the role of sun exposure and its effects on cutaneous photoaging in schizophrenia patients compared ...
Yonit, Wohl +3 more
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Retinoid effects on photodamaged skin
1990The effects of retinoid treatment on wrinkling in the hairless mouse can be understood in the context of the repair of the dermal elastosis. The two isomers of retinoic acid do not differ qualitatively in their effects on the histological appearance of the tissue or on the wrinkling patterns produced.
G F, Bryce, S S, Shapiro
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Early Events of DNA Photodamage
Annual Review of Physical Chemistry, 2015Ultraviolet (UV) radiation is a leading external hazard to the integrity of DNA. Exposure to UV radiation triggers a cascade of chemical reactions, and many molecular products (photolesions) have been isolated that are potentially dangerous for the cellular system.
Wolfgang J, Schreier +2 more
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