Spectral Responses of Melanin to Ultraviolet A Irradiation
نویسندگان
چکیده
منابع مشابه
Comparison of the Responses of Human Melanocytes with Different Melanin Contents to Ultraviolet B Irradiation1
Melanin is thought to serve in photoprotection. To investigate this, we have compared the responses of cultured human melanocytes derived from different pigmentary phenotypes (skin types I-VI) to a single irra diation with different doses of I A li light, ranging between 11.7 and 70.1 m.l/rm'. After I \ I! irradiation, heavily pigmented melanocytes had the same percent survival but a greater ca...
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C3Hf/HeN or BALB/c mice, exposed to acute ultraviolet (UV) irradiation and skin-sensitized through the irradiated skin site with soluble protein antigens, exhibit humoral tolerance to subsequent systemic challenge with antigen. We have termed this phenomenon "phototolerance" (PT). With the doses of UV radiation used, PT induction is restricted to the irradiated skin site and is observed only if...
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Except for Mycoplasma fermentans strain PG 18, single-cell suspensions of M. arthritidis, M. fermentans (ATCC 19989), M. hominis type 1, M. orale types 1 and 2, M. pneumoniae, and M. salivarium were inactivated exponentially by ultraviolet (UV) irradiation, in contrast to broth cultures containing clusters of elementary bodies. The susceptibility of the mycoplasmas was unaffected by storage at ...
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Ultraviolet germicidal irradiation (UVGI) is a disinfection method that uses ultraviolet (UV) light at sufficiently short wavelength to kill microorganisms. It is used in a variety of applications, such as food, air and water purification. UV has been a known mutagen at the cellular level for more than one-hundred years. The 1903 Nobel Prize for Medicine was awarded to Niels Finsen for his use ...
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ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 2004
ISSN: 0022-202X
DOI: 10.1046/j.0022-202x.2004.22247.x