Results 11 to 20 of about 32,501 (287)
Indian Journal of Dermatology, 2012 Photoprotection by sunscreens, clothing and glasses are important to protect the skin against the detrimental effects of sun exposure. In order to achieve complete protection, topical strategies must shield against the range of solar wavelengths ...
Reena Rai +2 more
doaj +3 more sources
The Lancet, 2007 Sun exposure is the main cause of photocarcinogenesis, photoageing, and photosensitivity; thus, photoprotection is an important issue. In a skin cancer prevention strategy, behavioural measures--eg, wearing sun protective clothes and a hat and reducing sun exposure to a minimum--should be preferred to sunscreens.
Stephan, Lautenschlager +2 more
+8 more sources
Implications of visible light and means of photoprotection
Journal of Photochemistry and Photobiology, 2023 Visible light (VL) has been shown to promote genotoxicity through free radical generation and structural protein degradation. These stressful events promote cellular vulnerability, which manifests clinically as erythema, hyperpigmentation, and photoaging.
Brittany Lane +4 more
doaj +1 more source
Orchestrated transcription of biological processes in the marine picoeukaryote Ostreococcus exposed to light/dark cycles [PDF]
, 2010 Background: Picoeukaryotes represent an important, yet poorly characterized component of marine phytoplankton. The recent genome availability for two species of Ostreococcus and Micromonas has led to the emergence of picophytoplankton comparative ...
Bouget, François-Yves +7 more
core +7 more sources
Existing antioxidant levels are more important in acclimation to supplemental UV-B irradiation than inducible ones: Studies with high light pretreated tobacco leaves [PDF]
, 2012 Greenhouse grown tobacco plants were exposed to supplemental ultraviolet irradiation (280-400 nm, UV-B centered) for 6 days and changes in their photosynthesis (gas exchange and electron transport) and general and specific antioxidant activities were ...
Hideg, Éva, Majer, Petra
core +1 more source
Sunscreens - Which and what for? [PDF]
, 2005 It is well established that sun exposure is the main cause for the development of skin cancer. Chronic continuous UV radiation is believed to induce malignant melanoma, whereas intermittent high-dose UV exposure contributes to the occurrence of actinic ...
Ananthaswamy HN +49 more
core +1 more source
The Functional Significance of Black-Pigmented Leaves: Photosynthesis, Photoprotection and Productivity in Ophiopogon planiscapus ‘Nigrescens’ [PDF]
, 2013 Black pigmented leaves are common among horticultural cultivars, yet are extremely rare across natural plant populations. We hypothesised that black pigmentation would disadvantage a plant by reducing photosynthesis and therefore shoot productivity, but ...
Clearwater, Michael J. +2 more
core +3 more sources
Frontiers in Medicine, 2022 A variety of non-filtering agents have been introduced to enhance sunscreen photoprotection. Most of those agents have only weak erythema protective properties but may be valuable and beneficial in supporting protection against other effects of UV ...
Salvador González +10 more
doaj +1 more source
Models and measurements of energy-dependent quenching. [PDF]
, 2013 Energy-dependent quenching (qE) in photosystem II (PSII) is a pH-dependent response that enables plants to regulate light harvesting in response to rapid fluctuations in light intensity.
Amarnath, Kapil +3 more
core +1 more source
Overexpression of beta-carotene hydroxylase enhances stress tolerance in Arabidopsis [PDF]
, 2002 Plant stress caused by extreme environmental conditions is already a principal reason for yield reduction in crops. The threat of global environment change makes it increasingly important to generate crop plants that will withstand such conditions ...
Davison, P.A., Horton, P., Hunter, C.N.
core +1 more source