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Comet assay analysis of single-stranded DNA breaks in circulating leukocytes of glaucoma patients

Mozaffarieh, M. and Schoetzau, A. and Sauter, M. and Grieshaber, M. and Orgül, S. and Golubnitschaja, O. and Flammer, J.. (2008) Comet assay analysis of single-stranded DNA breaks in circulating leukocytes of glaucoma patients. Molecular vision, Vol. 14. pp. 1584-1588.

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Official URL: http://edoc.unibas.ch/dok/A6004189

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Abstract

PURPOSE: To investigate the amount of single-stranded DNA breaks in circulating leukocytes of primary open-angle glaucoma (POAG) patients. METHODS: A comparative quantification of DNA breaks was performed in circulating leukocytes of POAG patients and healthy controls. The following groups of subjects were compared: (1) POAG patients having primary vascular dysregulation (PVD), (2) POAG patients without PVD, (3) healthy controls with PVD, and (4) healthy controls without PVD. The damage to DNA resulting in single-stranded breaks was assessed by means of the alkaline comet assay in which the damaged DNA migrates out of the nucleus forming a tail, which can be quantified using image analysis. Damage was quantified as the comet tail moment, which represents the extent of DNA damage in individual cells. RESULTS: Leukocytes of POAG patients exerted a significantly higher amount of comet tails, which are indicative of DNA damage, in comparison to control leukocytes (p>0.001). DNA breaks occurred particularly in the subgroup of POAG patients with PVD in comparison to glaucoma patients without PVD (p=0.002). In the control group, there was no significant difference between controls with PVD and controls without PVD (p=0.86). CONCLUSIONS: POAG patients with PVD have a significantly higher rate of DNA breaks than both POAG patients without PVD and healthy controls with and without PVD.
Faculties and Departments:03 Faculty of Medicine > Bereich Spezialfächer (Klinik) > Ehemalige Einheiten Spezialfächer (Klinik) > Ophthalmologie (Flammer)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Spezialfächer (Klinik) > Ehemalige Einheiten Spezialfächer (Klinik) > Ophthalmologie (Flammer)
03 Faculty of Medicine > Bereich Spezialfächer (Klinik) > Ophthalmologie USB > Ophthalmologie (Orgül)
03 Faculty of Medicine > Departement Klinische Forschung > Bereich Spezialfächer (Klinik) > Ophthalmologie USB > Ophthalmologie (Orgül)
UniBasel Contributors:Flammer, Josef and Orgül, Selim
Item Type:Article, refereed
Article Subtype:Research Article
Bibsysno:Link to catalogue
Note:Publication type according to Uni Basel Research Database: Journal article
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Last Modified:04 Sep 2015 14:31
Deposited On:25 Apr 2014 08:00

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