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UVR-B induced cataract development in C57 mice
St Erik's Eye Hospital, Karolinska Institutet.
2005 (English)In: Experimental Eye Research, ISSN 0014-4835, E-ISSN 1096-0007, Vol. 81, no 4, 389-394 p.Article in journal (Refereed) Published
Abstract [en]

The evolution of the morphological appearance and intensity of light scattering in C57 mice lenses after exposure to ultraviolet radiation type B (UVR-B) was investigated. A total of 80, 6-week-old female C57BL/6 mice were divided into four groups (n=20). One eye in each animal was exposed in vivo to UVR-B in the 300 nm wavelength region (UVR-B-300 nm) to a dose of 5 kJm(-2) for 15 min. The radiation output had lambda(max) at 302 nm with 5 nm [FWHM]. The animals were consecutively sacrificed at 1, 2, 4 and 8 days after the exposure. Macroscopic lens changes were documented using grid- and dark field illumination photography. Light scattering in the exposed and contralateral not exposed lens was measured quantitatively. Morphological lens changes were documented using grid- and dark field illumination photography. In vivo exposure to UVR-B-300 nm induced subcapsular cataract in all exposed lenses and occasionally cortical and nuclear cataract at all investigated time points. Exposed lenses scattered light significantly higher on all investigated days compared to contralateral non-exposed lenses. A transient increase of light scattering peaking at day 2 in exposed as well as in contralateral not exposed lenses was identified. Light scattering of the lenses varies with latency time after exposure. A dose of 5 kJm(-2) UVR-B-300 nm induces light scattering in C57 mice lenses. The increase has a transient peak at 2 days after exposure. The variation of light scattering among days 1, 2, 4, and 8 indicates a dynamic change of scattering characteristics in the mouse lens following unilateral in vivo exposure to 5 kJm(-2) UVR-B-300 nm.

Place, publisher, year, edition, pages
2005. Vol. 81, no 4, 389-394 p.
Keyword [en]
Cataract, UVR-B, light scattering, C57BL/6 mouse
National Category
Medical and Health Sciences
URN: urn:nbn:se:uu:diva-104237DOI: 10.1016/j.exer.2005.02.009PubMedID: 16185949OAI: oai:DiVA.org:uu-104237DiVA: diva2:220270
Available from: 2009-05-30 Created: 2009-05-28 Last updated: 2012-06-01Bibliographically approved

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