منابع مشابه
New option in photoprotection.
All the people are exposed to solar ultraviolet radiation. Exposure to sun with living in an oxygen-rich atmosphere causes unwanted photodemage. Sunburned skin is a leading risk factor for melanoma and non-melanoma cancers. UV exposure causes immunosuppression via multiple mechanisms in the skin. In this review the main topic is to mention new or alternative ways of photoprotection. Sunscreens ...
متن کاملCarotenoids in plant photoprotection
One of the roles of carotenoids in plants which are proposed is to serve as protecting agents against deleterious effects of light. The major mechanisms whereby carotenoids prevent harmful photooxidations in vitro and their suggested protective function in photosynthetic tissue, i.e. chioroplasts, will be summarized briefly. Fungi are non—photosynthetic plants, therefore lack the antenna functi...
متن کاملUpdate on Photoprotection Manipulation of Photoprotection to Improve Plant Photosynthesis
Light is of course essential for photosynthesis and supports most life on earth. However, light intensity and spectral quality are highly variable in space and time according to time of day, season, geography, climate, and the position of leaf within canopy and cell within leaf. This has resulted in the evolution of a remarkable suite of processes within the photosynthetic system to accommodate...
متن کاملPhototesting and photoprotection in LE.
Photosensitivity and induction of skin lesions following UV radiation is a common problem of patients with cutaneous and systemic forms of lupus erythematosus. The detrimental effect of UV radiation to patients with lupus erythematosus was already recognized in the last century. Skin lesions can now be provoked under standardized conditions allowing the diagnosis and classification of patients ...
متن کاملBrazilian Consensus on Photoprotection
Brazil is a country of continental dimensions with a large heterogeneity of climates and massive mixing of the population. Almost the entire national territory is located between the Equator and the Tropic of Capricorn, and the Earth axial tilt to the south certainly makes Brazil one of the countries of the world with greater extent of land in proximity to the sun. The Brazilian coastline, wher...
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ژورنال
عنوان ژورنال: Pediatrie pro praxi
سال: 2019
ISSN: 1213-0494,1803-5264
DOI: 10.36290/ped.2019.020