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Repair of Sparfloxacin-Induced Photochemical DNA Damage In Vivo

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1 Repair of Sparfloxacin-Induced Photochemical DNA Damage In Vivo
Melanie Struwe, Karl-Otto Greulich, Elias Perentes, Hans-Jörg Martus, Willi Suter, Ulla Plappert-Helbig  Journal of Investigative Dermatology  Volume 129, Issue 3, Pages (March 2009) DOI: /jid Copyright © 2009 The Society for Investigative Dermatology, Inc Terms and Conditions

2 Figure 1 DNA damage in skin, retina and cornea following the irradiation with 7Jcm−2 UVA from animals treated with the vehicle (1% CMC, white bars) or with sparfloxacin (500mgkg−1, black bars). The arrow indicates the factor by which the tail moment increased from the vehicle to the sparfloxacin-treated group (mean±SD, n=3), ***P<0.001 vs 0mgkg−1 (one-way ANOVA). Journal of Investigative Dermatology  , DOI: ( /jid ) Copyright © 2009 The Society for Investigative Dermatology, Inc Terms and Conditions

3 Figure 2 DNA repair of sparfloxacin-induced photochemical DNA damage. Linear (a–c) and logarithmic (d–f) representation of DNA repair in vivo in skin (a, d), cornea (b, e), and retina (c, f), following the administration of 1% CMC (•) or 500mgkg−1 sparfloxacin (○) and irradiation. Following the irradiation, the DNA damage was assessed over a recovery time of 6hours. Each data point (•,○) represents one animal. Additionally the mean±SD (-) of the groups consisting of three animals each is shown. (a–c) The raw data of the measured tail moment values and (d–f) the mathematical analysis. The tail moment over 6hours recovery time of all tissues followed an exponential decay. Journal of Investigative Dermatology  , DOI: ( /jid ) Copyright © 2009 The Society for Investigative Dermatology, Inc Terms and Conditions

4 Figure 3 Spectrum of the Psorisan 900 lamp with a maximum emission in the UVA (320–400nm). The lamp was used to irradiate the animals to cause a photogenotoxic effect of sparfloxacin. Journal of Investigative Dermatology  , DOI: ( /jid ) Copyright © 2009 The Society for Investigative Dermatology, Inc Terms and Conditions


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