Glutathione S transferase M1 and T1 genetic polymorphisms are related to the risk of primary open-angle glaucoma: a study in a Turkish population
- Mustafa Ünal1,
- Mehmet Güven2,
- Kazım Devranoğlu3,
- Ahmet Özaydın2,
- Bahadır Batar2,
- Nevbahar Tamçelik3,
- Ebru Eroğlu Görgün3,
- Didar Uçar3,
- Ahmet Sarıcı3
- 1Department of Ophthalmology, Akdeniz University Medical Faculty, Antalya, Turkey
- 2Department of Medical Biology, Cerrahpasa Faculty of Medicine, University of Istanbul, Istanbul, Turkey
- 3Department of Ophthalmology, Cerrahpasa Faculty of Medicine, University of Istanbul, Istanbul, Turkey
- Correspondence to: M Ünal Demircikara mah, 1426 sk Zeybek apt, B blok No14/12, Muratpaşa/Antalya, Turkey; mustafaunalmd{at}gmail.com
- Accepted 1 September 2006
- Published Online First 14 September 2006
Abstract
Background: Genetic factors and oxidative damage have been shown to have a role in the development of primary open angle glaucoma (POAG).
Aim: To determine the effects of genetic polymorphisms of glutathione S transferase (GST)M1 and GSTT1 on the risk of POAG in a Turkish population.
Methods: Using a multiplex polymerase chain reaction (PCR), GSTM1 and GSTT1 gene polymorphisms were analysed in 144 patients with POAG and in 121 otherwise healthy controls of similar age.
Results: The GSTM1 positive genotype and the GSTT1 null genotype had an increased risk of developing POAG (p<0.001, OR 2.93, 95% CI 1.66 to 5.20 and OR 4.25, 95% CI 2.30 to 7.80, respectively). The risk of glaucoma also increased significantly in subjects with a combination of GSTM1 positive and GSTT1 null genotypes (p<0.001, OR 3.46, 95% CI 1.64 to 7.38).
Conclusion: The GSTM1 positive genotype and GSTT1 null genotype or the combination of both may be associated with the increased risk of development of POAG in the Turkish population.
- GHT, glaucoma hemifield test
- GST, glutathione S transferase
- IOP, intraocular pressure
- PCR, polymerase chain reaction
- POAG, primary open-angle glaucoma
- ROS, reactive oxygen species
Footnotes
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Published Online First 14 September 2006
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Competing interests: None declared.







