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- Kronschläger, MartinUppsala universitet,Oftalmiatrik (author)
Evolution of TUNEL-labeling in the Rat Lens After In Vivo Exposure to Just Above Threshold Dose UVB
- Article/chapterEnglish2013
Publisher, publication year, extent ...
- 2013-04-03
- Informa UK Limited,2013
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:uu-204768
- https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-204768URI
- https://doi.org/10.3109/02713683.2013.783079DOI
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- Language:English
- Summary in:English
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- Purpose/Aim:To quantitatively analyse the evolution of TUNEL-labeling, after in vivo exposure to UVB.Methods:Altogether, 16 Sprague Dawley rats were unilaterally exposed in vivo for 15 min to close to threshold dose, 5 kJ/m(2), of ultraviolet radiation in the 300nm wavelength region. Animals were sacrificed in groups of 4 at 1, 5, 24 and 120 h after exposure. For each animal, both eye globes were removed and frozen. The frozen eye was cryo-sectioned in 10 mm thick midsagittal sections. From each globe, three midsagittal sections with at least five sections interval in between were mounted on a microscope slide. Sections were TUNEL-labeled and counter stained with DAPI. For quantification of apoptosis, a fluorescence microscope was used. In sections with a continuous epithelial cell surface, the number of lens epithelial cell nuclei and the number of TUNEL-positive epithelial cell nuclei was counted. The total number of TUNEL-positive epithelial cell nuclei for all three sections of one lens in relation to the total number of epithelial cell nuclei for all three sections of the same lens was compared between exposed and contralateral not exposed lens for each animal.Results:The relative difference of the fraction of TUNEL-positive nuclei between exposed and contralateral not exposed lens increased gradually, peaked in the time interval 5-120 h after exposure, and then declined.Conclusions:Close to threshold dose of UVB induces TUNEL-labeling that peaks in the time window 5-120 h after exposure to UVB.
Subject headings and genre
- MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Oftalmologi hsv//swe
- MEDICAL AND HEALTH SCIENCES Clinical Medicine Ophthalmology hsv//eng
- Apoptosis
- cataract
- in vivo exposure
- Sprague Dawley rats
- ultraviolet radiation
Added entries (persons, corporate bodies, meetings, titles ...)
- Yu, ZhaohuaUppsala universitet,Oftalmiatrik(Swepub:uu)zhayu760 (author)
- Talebizadeh, NooshinUppsala universitet,Oftalmiatrik(Swepub:uu)noota977 (author)
- Meyer, Linda M. (author)
- Hallböök, FinnUppsala universitet,Medicinsk utvecklingsbiologi(Swepub:uu)finnhb (author)
- Söderberg, Per G.Uppsala universitet,Oftalmiatrik(Swepub:uu)perso438 (author)
- Uppsala universitetOftalmiatrik (creator_code:org_t)
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- In:Current Eye Research: Informa UK Limited38:8, s. 880-8850271-36831460-2202
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