phototoxicity


Also found in: Dictionary, Wikipedia.

pho·to·tox·ic·i·ty

(fō'tō-tok-sis'i-tē),
The condition resulting from an overexposure to ultraviolet light, or from the combination of exposure to certain wavelengths of light and a phototoxic substance.
See also: photosensitization.
[photo- + G. toxikon, poison]

pho·to·tox·ic·i·ty

(fō'tō-tok-sis'i-tē)
The condition resulting from an overexposure to ultraviolet light, or from the combination of exposure to certain wavelengths of light and a phototoxic substance.
See also: photosensitization
[photo- + G. toxikon, poison]

phototoxicity (fōˈ·tō·tk·siˑ·s·tē),

n an adverse reaction to ultraviolet light or sunlight caused by chemicals, such as the furanocoumarins.

phototoxicity

pertaining to phototoxic.

primary phototoxicity
see solar dermatitis, sunburn.
References in periodicals archive ?
Topical nonsteroidal antiinflammatory drugs: allergic and photoallergic contact dermatitis and phototoxicity.
The real question has been, is phototoxicity simply a laboratory artifact or is it important in the field?
2:30 PHOTOCHEMISTRY AND PHOTOTOXICITY OF POLYCYCLIC
Although the dangers associated with exposure to theatre lights at laparotomy have been reported (5,6), the possibility of phototoxicity during laparoscopy has never been explored.
Many plant substances when exposed to UV or visible light exhibit phototoxicity and are referred to as phototoxins or photosensitizers (18).
The objectives of this article are to examine factors that propagate skin phototoxicity (photoaging) and look at natural ways to combat this major public health concern.
In 2000, the compound was referred to the National Institutes of Health's National Toxicology Program (NTP) for phototoxicity and photocar-cinogenicity testing, along with other common ingredients such as alpha- and beta-hydroxy acids, aloe vera, and nanoscale titanium dioxide and zinc oxide.
These data show a lack of phototoxicity in the irradiated cells because no differences were observed compared with the non irradiated cells.
Detailed articles cover topics such as spectral properties, brightness and maturation, phototoxicity and photostability of the various fluorescent proteins and offer practical advice on their applications in live cell imaging.
In vivo protective effect of B-carotene against psoralen phototoxicity.
Episkin only tests for skin corrosion and irritation, but there are around 30 validated alternatives to animal testing for other tests such as penetration and phototoxicity.