PURPOSE: To determine whether mutations in the optineurin (OPTN) gene are associated with the incidence of primary open-angle glaucoma (POAG) and normal tension glaucoma (NTG) in the Japanese. METHODS: Eighty-nine unrelated Japanese patients with POAG and 65 unrelated patients with NTG were studied. Genomic DNA was extracted from leukocytes of the peripheral blood, and thirteen exons of the OPTN gene were amplified by polymerase chain reaction (PCR) and directly sequenced. RESULTS: Sequence alterations in exons 4 (His26Asp), 5 (Met98Lys), and 16 (Arg545Gln) were found. The His26Asp and Arg545Gln mutations were not detected in 100 ethnically matched controls. The frequency of the missense Met98Lys variant was higher in the POAG and NTG groups than in the control group (16.9% versus 5%, 15.4% versus 5%; P = 0.009 and P = 0.029, and odds ratio 3.85 and 3.45, respectively, for the dominant effect of the OPTN A allele). Polymorphisms in exons 4 and 12, and in introns 6 and 7 were also detected. CONCLUSIONS: The association of the allelic variation (Met98Lys) in the OPTN gene and the prevalence of POAG and NTG in unrelated Japanese patients suggest that they are involved in the pathogenesis of POAG and NTG.
PURPOSE: To determine whether mutations in the optineurin (OPTN) gene are associated with the incidence of primary open-angle glaucoma (POAG) and normal tension glaucoma (NTG) in the Japanese. METHODS: Eighty-nine unrelated Japanese patients with POAG and 65 unrelated patients with NTG were studied. Genomic DNA was extracted from leukocytes of the peripheral blood, and thirteen exons of the OPTN gene were amplified by polymerase chain reaction (PCR) and directly sequenced. RESULTS: Sequence alterations in exons 4 (His26Asp), 5 (Met98Lys), and 16 (Arg545Gln) were found. The His26Asp and Arg545Gln mutations were not detected in 100 ethnically matched controls. The frequency of the missense Met98Lys variant was higher in the POAG and NTG groups than in the control group (16.9% versus 5%, 15.4% versus 5%; P = 0.009 and P = 0.029, and odds ratio 3.85 and 3.45, respectively, for the dominant effect of the OPTN A allele). Polymorphisms in exons 4 and 12, and in introns 6 and 7 were also detected. CONCLUSIONS: The association of the allelic variation (Met98Lys) in the OPTN gene and the prevalence of POAG and NTG in unrelated Japanese patients suggest that they are involved in the pathogenesis of POAG and NTG.
Authors: M Kamio; A Meguro; M Ota; N Nomura; K Kashiwagi; F Mabuchi; H Iijima; K Kawase; T Yamamoto; M Nakamura; A Negi; T Sagara; T Nishida; M Inatani; H Tanihara; M Aihara; M Araie; T Fukuchi; H Abe; T Higashide; K Sugiyama; T Kanamoto; Y Kiuchi; A Iwase; S Ohno; H Inoko; N Mizuki Journal: Clin Ophthalmol Date: 2009-06-02
Authors: Yutao Liu; Stephen Akafo; Cecile Santiago-Turla; Claudia S Cohen; Karen R Larocque-Abramson; Xuejun Qin; Leon W Herndon; Pratap Challa; Silke Schmidt; Michael A Hauser; R Rand Allingham Journal: Mol Vis Date: 2008-12-18 Impact factor: 2.367
Authors: Arun Kumar; Manjunath G Basavaraj; Santosh K Gupta; Imteyaz Qamar; Abdullah Mahmood Ali; Vineeta Bajaj; T K Ramesh; D Ravi Prakash; Jyoti S Shetty; Syril K Dorairaj Journal: Mol Vis Date: 2007-04-30 Impact factor: 2.367