CO OZNACZA SŁOWO PHOTOTOXIC
Fototoksyczność
Fototoksyczność, nazywana także fotoirryzacją, jest wywoływanym chemicznie podrażnieniem skóry wymagającym światła, które nie obejmuje układu odpornościowego. Jest to rodzaj fotostabilności. Skóra odpowiada podobnym przesadnym oparzeniom słonecznym. Zaangażowany chemikalia mogą wchodzić do skóry przez miejscowe podawanie lub mogą dostać się do skóry przez układ krążenia po spożyciu lub podaniu pozajelitowym. Substancja chemiczna musi być "fotoaktywna", co oznacza, że pochłaniając fotony absorbowana energia powoduje zmiany molekularne powodujące toksyczność. Wiadomo, że wiele związków syntetycznych, w tym substancji leczniczych, takich jak tetracykliny lub fluorochinolony, powoduje takie efekty. Kontakt powierzchniowy z niektórymi substancjami chemicznymi powoduje fotodermatitis; wiele roślin powoduje zapalenie fosfotodermalne. Toksyczność wywołana światłem jest zjawiskiem powszechnym u ludzi; występuje jednak u innych zwierząt.
Definicja słowa phototoxic w słowniku
Definicja fototoksyczności w słowniku sprawia, że skóra jest niebezpiecznie wrażliwa na światło słoneczne.
KSIĄŻKI POWIĄZANE ZE SŁOWEM «PHOTOTOXIC»
Poznaj użycie słowa
phototoxic w następujących pozycjach bibliograficznych Książki powiązane ze słowem
phototoxic oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
Otto Braun-Falco. Table 13.13. Clinical features of phototoxic and photoallergic
reactions Common None High Narrow, usually long UVA Sunburn-like; erythema
, blisters Burning None - only occurs in irradiated areas From BRUINSMA (1995),
...
2
Clinical Environmental Health and Toxic Exposures
Most phototoxic reactions result in a first-degree sunburn reaction, although other
reactions can occur, depending on the photosensitizing chemical. Clinical
features consist of immediate irritating and burning sensation with erythema,
swelling ...
John Burke Sullivan, Gary R. Krieger,
2001
NSAID that are structurally related to propionic acid have been shown to possess
phototoxic potential, whereas certain other types of NSAID, such as tenoxicam
and piroxicam were not experimentally phototoxic by in vivo or in vitro test ...
Klaus Peter Wilhelm, Hongbo Zhai, Howard I. Maibach,
2007
4
Handbook of Occupational Dermatology
A number of substances used industrially or contacted occupationally can cause
occupational photosensitivity, but usually only phototoxic reactions cause
significant hyperpigmentation. Phototoxic Reactions Phototoxic reactions are ...
5
Fisher's Contact Dermatitis
Alexander A. Fisher Robert L. Rietschel, Joseph F. Fowler. Table 22-1
Characteristics of Contact Photosensitivity: Phototoxic and Photoallergy
Reactions CHAPTER 23 PARESTHESIA DUE TO CONTACTANTS EXECUTIVE
SUMMARY In ...
Robert L. Rietschel, Alexander A. Fisher, Joseph F. Fowler,
2008
The precise cellular target of phototoxic reactions depends on the
physiochemical characteristics of the phototoxic agent. Topically applied agents
are more likely to damage keratinocytes due to their higher concentration in the
epidermis.
Jeanne Duus Johansen, Peter J. Frosch, Jean-Pierre Lepoittevin,
2010
7
Ferri's Color Atlas and Text of Clinical Medicine
Phototoxic sensitivity that does not involve an immunologic mechanism occurs as
a direct consequence of cellular damage induced by Fig 14–1 Exanthematous
drug reaction. These more extensive lesions on the abdomen were associated ...
8
The Poisoned Weed : Plants Toxic to Skin: Plants Toxic to Skin
Goodyer in 1655 (Gunther, 1959)} 4.1 Phototoxic Plants Although many plant
constituents are allergenic, others require sunlight for dermatotoxic action and so
are said to be phototoxic (or photodynamic if visible light and oxygen are
involved).
Department of Environmental Toxicology University of California-Davis Donald G. Crosby Professor Emeritus,
2004
9
Manual of Travel Medicine and Health
Risk Assessment for Travelers and Clinical Picture Exposure to light may induce
photoallergic and phototoxic reactions, polymorphous light eruption, hydroa
vacciniforme, solar urticaria, or phytophotodermatitis. - Phototoxic Reactions ...
Robert Steffen, Herbert L. DuPont, Annelies Wilder-Smith,
2007
A within- individual phototoxic index (PI) or sensitization factor is produced. On
code breakage, this index provides a clear indication of the degree of
phototoxicity over a range of wavelengths. The morphology of the reaction and
importantly ...
Henry W. Lim, Herbert Honigsmann, John L. M. Hawk,
2007
WIADOMOŚCI, KTÓRE ZAWIERAJĄ SŁOWO «PHOTOTOXIC»
Sprawdź, o czym dyskutuje się w prasie krajowej i zagranicznej oraz jak jest stosowane słowo
phototoxic w wiadomościach.
Dr. Frank Bures: Why does wild parsnip cause such serious burns?
The second reaction is independent of the “phototoxic” burn. Here, the mixture of UV-A and psoralen stimulates your pigment cells to make ... «Winona Daily News, Lip 15»
Zombie gnome! Tips for your garden by Perfect Plants of …
Pernicious weeds like giant hogweed can cause skin burns because it's a 'phototoxic', meaning that it contains furocoumarins in its sap. «Kent and Sussex Courier, Lip 15»
GARDENING with ALI MARSHALL: Save yourself from plant 'attack'
Giant hogweed is what's known scientifically as 'phototoxic'. There is a chemical in its sap which causes our skin to burn and blister in sunlight. «Torquay Herald Express, Lip 15»
5 Foods That Work Wonders for Your Health AND Your Looks
phototoxic reaction can occur leaving the skin burned and discolored.) But if used properly, it can be a great addition to any skin care regimen ... «Womans Day, Lip 15»
Bug Spray: DEET vs. Natural Repellant
Keep in mind that citrus oils are considered phototoxic, meaning that the skin could burn easily if applied to the skin and then exposed to the ... «Yahoo News, Lip 15»
Giant hogweed; digging deeper into the history of a 'killer weed'
Giant hogweed is a phototoxic, meaning it contains furocoumarins, especially in its sap. When skin is exposed to furocoumarins in combination ... «The Guardian, Lip 15»
Top five invasive species that pose a threat to Finnish nature
It not only overtakes local species, but its sap is phototoxic, resulting in blisters, long-lasting scars, and blindness if it comes into contact with ... «YLE News, Lip 15»
Invader species: Non-native plants taking over state
The fluid is phototoxic, meaning it needs sunlight to activate it; depending on the amount and the type of plant from which it came, it can cause ... «Stowe Today, Lip 15»
Warning: 11ft tall toxic weed that can cause blindness spotted in …
... Vimy Road, Kevin Ward noticed the presence of an 11ft tall giant hogweed – a phototoxic plant which can cause severe skin inflammations. «Leighton Buzzard Today, Lip 15»
In Good Shape - The Health Show
The trigger can be certain plants or cosmetics. Some drugs cause phototoxic reactions in combination with the sun's ultraviolet rays. «Deutsche Welle, Lip 15»