Abstract:
:Phototherapy with broadband UVB is an effective treatment for inflammatory dermatoses. A newly developed fluorescent UVB lamp (Philips TL01) that emits a narrowband UVB around 311 nm was shown to be superior for the phototherapy of psoriasis. In order to contribute to the knowledge about the carcinogenic potential of this UVB source, we measured the DNA damage in lymphoblasts and keratinocytes induced by narrowband UVB and compared it with that by conventional broadband UVB using the single cell gel electrophoresis (comet assay). At equal doses, broadband UVB produced more DNA damage than narrowband UVB. However, in phototherapy of psoriasis, up to 10-fold higher doses are used with TL01. When therapeutically equivalent doses were compared (10-fold correction for narrowband UVB), we found only slight differences in the amount of DNA damage produced by broadband and narrowband UVB. This supports the already existing evidence that for phototherapy narrowband UVB is not more carcinogenic than broadband UVB.
journal_name
Photochem Photobioljournal_title
Photochemistry and photobiologyauthors
Tzung TY,Rünger TMsubject
Has Abstractpub_date
1998-06-01 00:00:00pages
647-50issue
6eissn
0031-8655issn
1751-1097journal_volume
67pub_type
杂志文章abstract::The Escherichia coli protein YcgF contains a photosensory flavin adenine dinucleotide (FAD)-binding BLUF domain covalently linked to an EAL domain, which is predicted to have cyclic-di-guanosine monophosphate (GMP) phosphodiesterase activity. We have cloned, overexpressed and purified this protein, which we refer to a...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2004-06-16-RA-203
更新日期:2004-11-01 00:00:00
abstract::Solar light leads to thymine dimers that are mutagenic and primary cause of skin cancer. Here, we report absorption and synchrotron radiation circular dichroism (CD) spectra of Tn single strands with different number n of bases (n = 2-7, 10, 11) recorded after various 254 nm irradiation times. From a principal compone...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12183
更新日期:2014-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2012.01194.x
更新日期:2012-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.13377
更新日期:2021-01-04 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2001)073<0077:lisdin>2.0.co;2
更新日期:2001-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.13316
更新日期:2020-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12144
更新日期:2013-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2001)073<0245:aomoct>2.0.co;2
更新日期:2001-03-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2005-08-23-RA-656
更新日期:2006-03-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2012.01117.x
更新日期:2012-05-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2009.00584.x
更新日期:2009-07-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2004-04-22-RA-147
更新日期:2004-09-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1995.tb03948.x
更新日期:1995-02-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2002)076<0678:acopia>2.0.co;2
更新日期:2002-12-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1989.tb09204.x
更新日期:1989-04-01 00:00:00
abstract::The photodegradation of the S(+)- and R(-)-ketoprofen (KP) enantiomers in the bovine serum albumin matrix was studied by steady-state photolysis with the use of lambda(irr) > 320 nm and transient absorption spectroscopy with lambda(exc) = 355 nm, at 1/1 and 2/1 KP/BSA molar ratios. R(-)-KP was found to be more labile ...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2005-07-11-RA-608
更新日期:2006-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:
更新日期:1998-07-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2009.00638.x
更新日期:2010-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.2011.01006.x
更新日期:2012-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2005-03-22-RA-468
更新日期:2006-01-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2000)072<0146:IVNIRS>2.0.CO;2
更新日期:2000-07-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2004)080<0531:EOLLIO>2.0.CO;2
更新日期:2004-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12833
更新日期:2017-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.12805
更新日期:2017-11-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/2004-03-11-RA-109
更新日期:2004-09-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/j.1751-1097.1992.tb02171.x
更新日期:1992-09-01 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1111/php.13361
更新日期:2020-12-03 00:00:00
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journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:
更新日期:1998-01-01 00:00:00
abstract::The decay processes of the lowest excited singlet and triplet states of five heteropsoralens (HPS) were investigated by steady-state and shift-phase fluorometry and by laser-flash photolysis in different solvents. The emission spectra of HPS are detectable only in trifluoroethanol (TFE), where fluorescence lifetimes (...
journal_title:Photochemistry and photobiology
pub_type: 杂志文章
doi:10.1562/0031-8655(2000)071<0506:ppotle>2.0.co;2
更新日期:2000-05-01 00:00:00