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Matsuda F, Torii Y, Enomoto H, Kuga C, Aizawa N, Iwata Y, Saito M, Imanishi H, Shimomura S, Nakamura H, Tanaka H, Iijima H, Tsutsui H, Tanaka Y, Nishiguchi S. Anti-interferon-α neutralizing antibody is associated with nonresponse to pegylated interferon-α plus ribavirin in chronic hepatitis C. J Viral Hepat 2012; 19:694-703. [PMID: 22967100 DOI: 10.1111/j.1365-2893.2012.01598.x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pegylated interferon-α (PEG-IFN-α) plus ribavirin (RBV) treatment fails to achieve a sustained virological response (SVR) in approximately 20-50% of patients with chronic hepatitis C virus (HCV) infection. We assessed the contribution of an anti-IFN-α neutralizing antibody (NAb) on the nonresponse to treatment. NAbs were detected using an antiviral assay that assessed the neutralizing effects of serum samples against IFN. Serum samples were obtained at the end of the treatment and evaluated for the presence of NAbs using recombinant IFN-α as a standard. We studied 129 PEG-IFN-α/RBV-treated patients. In the 82 end-of-treatment responders, no NAbs were detected. Of the 47 patients who did not respond, seven (15%) were positive for NAbs. We also examined an additional 83 patients who had not responded to PEG-IFN-α treatment, and detected 12 with NAbs. Patients with good IFN-responsive characteristics, including HCV genotype 2/3 and major allele homozygotes for interleukin-28B, were included in the 19 patients with NAbs. No NAbs interfered with the antiviral activity of natural human IFN-β (nIFN-β) and re-treatement of patients with NAbs with nIFN-β/RBV achieved SVR. Our analyses revealed that the emergence of anti-IFN-α NAbs was a candidate causal factor of PEG-IFN-α-treatment failure. Therefore, these antibodies should be assayed in patients who do not respond to PEG-IFN-α therapy, and if detected, other effective treatments, i.e., medications that are not neutralized by anti-IFN-α NAbs, should be considered.
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Nakata I, Yamashiro K, Akagi-Kurashige Y, Miyake M, Kumagai K, Tsujikawa A, Liu K, Chen LJ, Liu DTL, Lai TYY, Sakurada Y, Yoneyama S, Cheng CY, Cackett P, Yeo IY, Tay WT, Cornes BK, Vithana EN, Aung T, Matsuo K, Matsuda F, Wong TY, Iijima H, Pang CP, Yoshimura N. Association of genetic variants on 8p21 and 4q12 with age-related macular degeneration in Asian populations. Invest Ophthalmol Vis Sci 2012; 53:6576-81. [PMID: 22930721 DOI: 10.1167/iovs.12-10219] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE To evaluate the association of genetic variants at chromosomes 8p21 and 4q12 with the risk of developing AMD and its two main subtypes, choroidal neovascular membrane (CNV) and polypoidal choroidal vasculopathy (PCV), in Asian populations. METHODS The study population comprised 2360 patients with neovascular AMD (1013 typical AMD-CNV and 1282 PCV), and 3598 controls from four independent cohorts, two of Japanese (n = 4859) and two of Chinese (n = 1099) ethnicity. We performed a meta-analysis in case-control studies of two reported single nucleotide polymorphisms (SNPs) (rs13278062 at TNFRSF10A-LOC389641 on 8p21 and rs1713985 at REST-C4orf14-POLR2B-IGFBP7 on 4q12) by using logistic regression analysis adjusted for age and sex. Subgroup analysis by CNV and PCV subtypes were performed to evaluate the significance of these two variants. RESULTS The reported association between rs13278062 at 8p21 and neovascular AMD was replicated in this population (P = 1.12 × 10(-4), odds ratio [OR] = 0.79, 95% confidence interval [CI] = 0.70-0.89). However, there was no association of rs1713985 at 4q12 with neovascular AMD, or its two subtypes, typical AMD-CNV and PCV (all P > 0.05). The study sample size had a statistical power of greater than 99% to detect an association of a risk allele with AMD with an OR of 1.30, as reported in the original study of rs1713985 and AMD. CONCLUSIONS The present results did not replicate the reported association between rs1713985 at 4q12 and neovascular AMD. However, we confirmed the association between rs13278062 at 8p21 and neovascular AMD in Asian populations.
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Mabuchi F, Sakurada Y, Kashiwagi K, Yamagata Z, Iijima H, Tsukahara S. Association between Genetic Variants Associated with Vertical Cup-to-Disc Ratio and Phenotypic Features of Primary Open-Angle Glaucoma. Ophthalmology 2012; 119:1819-25. [DOI: 10.1016/j.ophtha.2012.02.044] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Revised: 02/22/2012] [Accepted: 02/27/2012] [Indexed: 11/28/2022] Open
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Sugiyama A, Imasawa M, Chiba T, Iijima H. Reappraisal of spontaneous closure rate of idiopathic full-thickness macular holes. Open Ophthalmol J 2012; 6:73-4. [PMID: 22934124 PMCID: PMC3428785 DOI: 10.2174/1874364101206010073] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2011] [Revised: 08/01/2012] [Accepted: 08/01/2012] [Indexed: 02/06/2023] Open
Abstract
We retrospectively reviewed the records of 142 eyes of 138 patients with idiopathic full-thickness macular hole. Spontaneous closure of idiopathic full-thickness macular hole was observed in five eyes (3.5%) of four patients before the planned vitrectomy. In the era when surgical treatment was not available for macular hole, the rate of spontaneous closure of idiopathic full-thickness macular hole was reported as 6.2%. Among several case reports on spontaneous closure of idiopathic full-thickness macular hole based on the optical coherence tomography images only one study reported the rate of spontaneous closure as 2.7%. According to the previous reports and our results, small idiopathic full-thickness macular holes may close spontaneously in a few percent of all macular hole cases. The rate of spontaneous closure may be affected by the waiting time before vitrectomy.
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Iijima H, Takahashi H. The final retinal thickness in eyes with branch retinal artery occlusion. Br J Ophthalmol 2012; 96:1355. [PMID: 22740109 DOI: 10.1136/bjophthalmol-2012-302086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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81
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Chevrier R, Daugas JM, Gaudefroy L, Ichikawa Y, Ueno H, Hass M, Haas H, Cottenier S, Aoi N, Asahi K, Balabanski DL, Fukuda N, Furukawa T, Georgiev G, Hayashi H, Iijima H, Inabe N, Inoue T, Ishihara M, Ishii Y, Kameda D, Kubo T, Nanao T, Neyens G, Ohnishi T, Rajabali MM, Suzuki K, Takeda H, Tsuchiya M, Vermeulen N, Watanabe H, Yoshimi A. Is the 7/2(1)- isomer state of 43S spherical? PHYSICAL REVIEW LETTERS 2012; 108:162501. [PMID: 22680712 DOI: 10.1103/physrevlett.108.162501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Indexed: 06/01/2023]
Abstract
We report on the spectroscopic quadrupole moment measurement of the 7/2(1)(-) isomeric state in (16)(43)S(27) [E*=320.5(5) keV, T(1/2)=415(3) ns], using the time dependent perturbed angular distribution technique at the RIKEN RIBF facility. Our value, |Q(s)|=23(3) efm(2), is larger than that expected for a single-particle state. Shell model calculations using the modern SDPF-U interaction for this mass region reproduce remarkably well the measured |Q(s)|, and show that non-negligible correlations drive the isomeric state away from a purely spherical shape.
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Chiba N, Imasawa M, Goto T, Imai M, Iijima H. Foveal sensitivity and visual acuity in macular thickening disorders. Jpn J Ophthalmol 2012; 56:375-9. [PMID: 22492175 DOI: 10.1007/s10384-012-0137-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Accepted: 02/27/2012] [Indexed: 11/29/2022]
Abstract
PURPOSE To study the relationship between foveal sensitivity and visual acuity in eyes with macular disorders exhibiting macular thickening. METHODS We studied the relationship between foveal sensitivity, obtained as the "foveal threshold" by use of Humphrey perimetry, and best-corrected visual acuity, converted to the logarithm of the minimum angle of resolution (logMAR), for 117 eyes with epiretinal membrane (ERM), 197 eyes with retinal vein occlusion associated with macular edema (RVOME), and 158 eyes with central serous chorioretinopathy (CSC). RESULTS Foveal sensitivity and logMAR correlated significantly for the eyes with ERM, RVOME, and CSC. Although mean foveal sensitivity was no different among the three diseases, mean logMAR was lower in eyes with CSC, i.e., visual acuity was better, than in those with ERM or RVOME (P < 0.001). CONCLUSIONS Light sense (foveal sensitivity) is related to spatial resolution (logMAR) at the center of the fovea, in eyes with ERM, RVOME, and CSC at different strengths depending on the disease. Less pronounced reduction of visual acuity compared with foveal sensitivity in eyes with CSC could explain the tendency of these patients to complain of dimness rather than acuity loss.
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Mabuchi F, Yoshimura K, Kashiwagi K, Yamagata Z, Kanba S, Iijima H, Tsukahara S. Risk factors for anxiety and depression in patients with glaucoma. Br J Ophthalmol 2012; 96:821-5. [PMID: 22353697 DOI: 10.1136/bjophthalmol-2011-300910] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AIM To assess the risk factors for anxiety and depression in patients with glaucoma. METHODS Anxiety and depression in 408 patients with glaucoma were evaluated using the hospital anxiety and depression scale (HADS) questionnaire, which consists of two subscales, representing HADS-anxiety (HADS-A) and HADS-depression (HADS-D). To identify the risk factors for anxiety and depression, the stepwise and multiple linear regression analyses were carried out with the HADS-A and HADS-D subscores as dependent variables and demographic and clinical features as independent variables. RESULTS A stepwise linear regression analysis revealed the significantly related factors to be age for HADS-A (β=-0.046, p=0.0007) and HADS-D (β=0.035, p=0.011) and the mean deviation of the Humphrey Visual Field Analyzer 30-2 (HFA30-2) in the better eye for HADS-D (β=-0.095, p=0.0026). Based on multiple linear regression analyses, significant relationships were confirmed between age and the HADS-A subscore (β=-0.046, p=0.0008). Significant relationships were also confirmed between age (β=0.037, p=0.0077) or the mean deviation of HFA30-2 in the better eye (β=-0.094, p=0.0036) and the HADS-D subscore. CONCLUSION A younger age was thus found to be a risk factor for anxiety, while an older age and increasing glaucoma severity were risk factors for depression in patients with glaucoma.
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Hanada N, Iijima H, Sakurada Y, Imasawa M. Recurrence of macular edema associated with branch retinal vein occlusion after intravitreal bevacizumab. Jpn J Ophthalmol 2011; 56:165-74. [PMID: 22183139 DOI: 10.1007/s10384-011-0113-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2011] [Accepted: 10/18/2011] [Indexed: 11/26/2022]
Abstract
PURPOSE To study the recurrence of macular edema and the probability of retreatment with intravitreal bevacizumab (IVB) of eyes with macular edema associated with branch retinal vein occlusion (BRVO). METHODS In this retrospective study of an interventional case series, the temporal profile of visual acuity and retinal thickness after individual IVB, either initial or repeated, was investigated for eyes with acute BRVO associated with symptomatic macular edema. RESULTS In a total of 95 IVB treatment sessions conducted on 37 eyes of 37 patients, 25 injections were completed with a follow-up period of 6 months or longer without any additional treatments. Fifty-eight IVB injections were followed by retreatment with IVB after an average interval of 119 days (range 42-308 days) since the preceding IVB injection. The remaining 12 injections were followed either by an insufficient follow-up period of less than 6 months or by laser treatment. CONCLUSIONS Although retreatment with IVB because of recurrence of macular edema is common, in this study, the probability of retreatment with IVB was approximately 70% after each individual IVB injection, indicating that 4 injections is maximum for three-quarters of eyes with BRVO macular edema.
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Sakurada Y, Mabuchi F, Yoneyama S, Kubota T, Iijima H. Polymorphisms in ARMS2 (LOC387715) and LOXL1 genes in the Japanese with age-related macular degeneration. Am J Ophthalmol 2011; 152:499. [PMID: 21855673 DOI: 10.1016/j.ajo.2011.04.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2011] [Accepted: 04/06/2011] [Indexed: 10/17/2022]
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Mabuchi F, Sakurada Y, Kashiwagi K, Yamagata Z, Iijima H, Tsukahara S. Association between SRBD1 and ELOVL5 gene polymorphisms and primary open-angle glaucoma. Invest Ophthalmol Vis Sci 2011; 52:4626-9. [PMID: 21508110 DOI: 10.1167/iovs.11-7382] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE The S1 RNA binding domain 1 (SRBD1) and elongation of long-chain fatty acids family member 5 (ELOVL5) have been reported to be susceptibility genes for early-onset normal-tension glaucoma (NTG). The present study we conducted to assess whether these genes were associated with primary open-angle glaucoma (POAG), including late-onset NTG and high-tension glaucoma (HTG). METHODS Three hundred seventy Japanese patients with POAG, including 158 NTG and 212 HTG patients and 191 control subjects were analyzed for SRBD1 (rs3213787) and ELOVL5 (rs735860) gene polymorphisms. RESULTS The A allele frequencies of rs3213787 were significantly higher in NTG (98.4%, P = 0.0003) and HTG (97.6%, P = 0.0013) patients than in the control subjects (92.7%). The A allele frequency was significantly higher (P = 0.014), even though the NTG patients were limited to those diagnosed at ages older than 60 years. The POAG patients with the CC or CT risk genotypes of rs735860 were significantly older (P = 0.032, analysis of variance, P = 0.043 and P = 0.015, respectively) than were the POAG patients with the TT genotype, and the frequency of a family history of glaucoma in POAG patients with the CC risk genotype was significantly higher (P = 0.015) than that in POAG patients with the TT genotype. CONCLUSIONS SRBD1 gene polymorphism is associated with the development of HTG as well as NTG, including late-onset NTG. Typical POAG associated with ELOVL5 gene polymorphism may have a late rather than an early onset.
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Hatori T, Imai M, Iijima H. Intravitreal intrusion of an intrascleral MIRAgel buckling implant. Jpn J Ophthalmol 2011; 55:310-311. [DOI: 10.1007/s10384-011-0021-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2010] [Accepted: 12/09/2010] [Indexed: 11/28/2022]
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Imasawa M, Sakurada Y, Iijima H. Classic choroidal neovascularization developing after photodynamic therapy in eyes with polypoidal choroidal vasculopathy. Jpn J Ophthalmol 2011; 55:241-247. [DOI: 10.1007/s10384-011-0006-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2010] [Accepted: 12/10/2010] [Indexed: 10/18/2022]
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Sakurada Y, Kubota T, Imasawa M, Mabuchi F, Tateno Y, Tanabe N, Iijima H. Role of complement factor H I62V and age-related maculopathy susceptibility 2 A69S variants in the clinical expression of polypoidal choroidal vasculopathy. Ophthalmology 2011; 118:1402-7. [PMID: 21397333 DOI: 10.1016/j.ophtha.2010.12.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 11/30/2010] [Accepted: 12/09/2010] [Indexed: 10/18/2022] Open
Abstract
PURPOSE To investigate the role of complement factor H (CFH) I62V (rs800292) and age-related maculopathy susceptibility 2 (ARMS2) A69S (rs10490924) variants in the clinical characteristics of polypoidal choroidal vasculopathy (PCV). DESIGN Cross-sectional study. PARTICIPANTS A total of 226 Japanese patients with PCV in both eyes (44 cases) or in 1 eye (182 cases). METHODS Genotyping was performed in all cases for CFH I62V using TaqMan technology and for ARMS2 A69S by denaturing high-performance chromatography. The incidence of 5 characteristic funduscopic findings was studied, including serous retinal detachment, subretinal hemorrhage, serous pigment epithelial detachment (PED), hemorrhagic PED, and classic choroidal neovascularization (CNV). MAIN OUTCOME MEASURES The association of clinical phenotypes, including the incidence of each of 5 specific fundus findings, bilaterality of the disease, and age at onset, with variants of CFH I62V or ARMS2 A69S. RESULTS Although there was no association of CFH I62V variants with any of the phenotypes in PCV, at-risk variants of ARMS2 A69S were associated with higher incidences of subretinal hemorrhage, serous PED, and hemorrhagic PED. In particular, the at-risk allele homozygosity of ARMS2 A69S increased the likelihood for hemorrhagic PED by 12.4-fold compared with non-carriers of the allele (confidence interval, 1.60-95.1, P = 0.0001). However, the at-risk allele of ARMS2 A69S was associated with a lower incidence of serous retinal detachment (P = 0.0092). Classic CNV was not associated with either variant. The mean age at the onset of PCV was significantly younger (68.8 years) in those with homozygosity of the at-risk allele of ARMS2 A69S than in those with heterozygosity (71.6 years) or in non-carriers (72.6 years) (P = 0.026). Moreover, the at-risk allele frequencies of the ARMS2 A69S were significantly higher in bilateral cases than in unilateral cases (75.0% vs. 59.3%, P = 0.007). CONCLUSIONS ARMS2 A69S variants were significantly associated with hemorrhagic or subpigment epithelium lesions of PCV, and with earlier onset and bilateral involvement. The genotyping of ARMS2 A69S is more informative than that of CFH I62V in understanding the clinical features in patients with PCV.
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Sakurada Y, Kubota T, Imasawa M, Mabuchi F, Tanabe N, Iijima H. Association of LOC387715 A69S genotype with visual prognosis after photodynamic therapy for polypoidal choroidal vasculopathy. Retina 2011; 30:1616-21. [PMID: 20671585 DOI: 10.1097/iae.0b013e3181e587e3] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate whether there is an association of the LOC387715 A69S genotype with visual prognosis after photodynamic therapy in eyes with polypoidal choroidal vasculopathy (PCV). METHODS Photodynamic therapy was repeated every 3 months until the disappearance of angiographic signs of active lesions in 71 eyes of 71 patients with PCV who were followed-up for at least 12 months. All patients were genotyped for LOC387715 A69S polymorphism (rs10490924, risk-allele T). RESULTS Although there was no statistically significant difference in the mean baseline visual acuity (P = 0.53) among the 3 genotypes, there was a statistically significant difference in the visual acuity both at the 12-month and final visits (P = 0.002 and P < 0.001, respectively) with the poorer acuity in patients with the higher "T-"allele frequency. "T" allele was more frequently observed in those with the recurred PCV lesions (odds ratio: 5.8, 95% confidential interval: 2.3-15.1, T vs. G). CONCLUSION There is a pharmacogenetic association between the LOC387715 A69S variant and the long-term results after photodynamic therapy in eyes with PCV. The LOC387715 A69S genotype is of clinical importance to predict the visual prognosis after photodynamic therapy in eyes with PCV. These results should be confirmed or refuted by replication studies.
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Suzuki M, Meguro A, Ota M, Nomura E, Kato T, Nomura N, Kashiwagi K, Mabuchi F, Iijima H, Kawase K, Yamamoto T, Nakamura M, Negi A, Sagara T, Nishida T, Inatani M, Tanihara H, Aihara M, Araie M, Fukuchi T, Abe H, Higashide T, Sugiyama K, Kanamoto T, Kiuchi Y, Iwase A, Ohno S, Inoko H, Mizuki N. Genotyping HLA-DRB1 and HLA-DQB1 alleles in Japanese patients with normal tension glaucoma. Mol Vis 2010; 16:1874-9. [PMID: 21031025 PMCID: PMC2956698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2010] [Accepted: 09/09/2010] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Normal tension glaucoma (NTG) is a subtype of glaucoma in which intraocular pressure is within the statistically normal range. NTG may be associated with an immune disorder. The aim of this study was to determine whether specific alleles in the human leukocyte antigen (HLA)-DRB1 and HLA-DQB1 genes correlated with NTG in Japanese patients. METHODS We genotyped the HLA-DRB1 and HLA-DQB1 alleles in 113 Japanese patients with NTG and in 184 healthy Japanese control subjects using the polymerase chain reaction-sequence-specific oligonucleotide probes (PCR-SSOP) Luminex method. We assessed the allelic diversity in patients and controls. RESULTS There were no statistically significant differences in the allele frequency of HLADRB1 and HLA-DQB1 between NTG patients and control subjects, and no HLA-DRB1-HLA-DQB1 haplotypes demonstrated any significant association with NTG. CONCLUSIONS Our findings suggest that HLA-DRB1 and HLA-DQB1 polymorphisms have no significant effect on the development of NTG in Japanese patients.
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Chen Z, Chen L, Nagaishi T, Nakajima A, Iijima H, Blumberg RS. Regulation of lymphocyte function by carcinoembryonic antigen adhesion molecule 1 (LL3-2). Int Immunol 2010. [DOI: 10.1093/intimm/dxq202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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93
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Mabuchi F, Sakurada Y, Kashiwagi K, Yamagata Z, Iijima H, Tsukahara S. Estrogen receptor beta gene polymorphism and intraocular pressure elevation in female patients with primary open-angle glaucoma. Am J Ophthalmol 2010; 149:826-30.e1-2. [PMID: 20399928 DOI: 10.1016/j.ajo.2009.12.030] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2009] [Revised: 12/16/2009] [Accepted: 12/17/2009] [Indexed: 10/19/2022]
Abstract
PURPOSE To assess whether the genetic polymorphisms of estrogen receptor beta (ESR2) are associated with primary open-angle glaucoma (POAG). DESIGN Case-control study. METHODS Four hundred and twenty-five Japanese patients with POAG, including normal-tension glaucoma (NTG, n = 213) and high-tension glaucoma (HTG, n = 212), and 191 control subjects without glaucoma were analyzed for polymorphisms of rs1256031 and rs4986938 in the ESR2 gene. The genotypic and allelic frequencies were compared between NTG or HTG patients and control subjects. The phenotypic features of patients with POAG were compared between each genotype. RESULTS There were significant differences in the genotype frequencies of rs1256031 and rs4986938 between the HTG patients and control subjects in women (P = .033 and P = .043 respectively). The frequencies of the C allele of rs1256031 and G allele of rs4986938 were significantly higher in patients with HTG in comparison to the control subjects in women (rs1256031: 53.6% vs 43.4%, P = .044; rs4986938: 89.2% vs 80.6%, P = .027). The maximum intraocular pressures in female POAG patients with the CC or TC genotypes of rs1256031 were significantly higher than that in female POAG patients with the TT genotype (P = .039, analysis of variance, P = .018 and P = .026 respectively). CONCLUSION The ESR2 gene polymorphism is therefore considered to be associated with an intraocular pressure elevation in female patients with POAG.
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Murakami K, Meguro A, Ota M, Shiota T, Nomura N, Kashiwagi K, Mabuchi F, Iijima H, Kawase K, Yamamoto T, Nakamura M, Negi A, Sagara T, Nishida T, Inatani M, Tanihara H, Aihara M, Araie M, Fukuchi T, Abe H, Higashide T, Sugiyama K, Kanamoto T, Kiuchi Y, Iwase A, Ohno S, Inoko H, Mizuki N. Analysis of microsatellite polymorphisms within the GLC1F locus in Japanese patients with normal tension glaucoma. Mol Vis 2010; 16:462-6. [PMID: 20309402 PMCID: PMC2842094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Accepted: 03/11/2010] [Indexed: 10/29/2022] Open
Abstract
PURPOSE To investigate whether the GLC1F locus is associated with normal tension glaucoma (NTG) in Japanese patients. METHODS We recruited 242 unrelated Japanese subjects, including, 141 NTG patients and 101 healthy controls. The patients exhibiting a comparatively early onset were selected as they suggest that genetic factors may show stronger involvement. Genotyping and assessment of allelic diversity was performed on 11 highly polymorphic microsatellite markers in and around the GLC1F locus. RESULTS Individuals carrying the 163 allele of D7S1277i had a statistically significant increased risk of NTG (p=0.0013, pc=0.016, OR=2.47, 95%CI=1.42-4.30). None of the other markers identified significant loci (pc>0.05) after Bonferroni's correction. CONCLUSIONS These findings suggested that the genes in the GLC1F locus may be associated with the pathogenesis of NTG.
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Nakamura J, Meguro A, Ota M, Nomura E, Nishide T, Kashiwagi K, Mabuchi F, Iijima H, Kawase K, Yamamoto T, Nakamura M, Negi A, Sagara T, Nishida T, Inatani M, Tanihara H, Aihara M, Araie M, Fukuchi T, Abe H, Higashide T, Sugiyama K, Kanamoto T, Kiuchi Y, Iwase A, Ohno S, Inoko H, Mizuki N. Association of toll-like receptor 2 gene polymorphisms with normal tension glaucoma. Mol Vis 2009; 15:2905-10. [PMID: 20057905 PMCID: PMC2802293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2009] [Accepted: 12/22/2009] [Indexed: 10/31/2022] Open
Abstract
PURPOSE Toll-like receptor 2 (TLR2) is a transmembrane receptor that mediates immune responses to exogenous and endogenous ligands, and interacts with heat-shock proteins, which are reportedly involved in normal tension glaucoma (NTG). We investigated whether TLR2 polymorphisms are associated with NTG. METHODS 200 Japanese patients with NTG and 128 healthy Japanese controls were recruited. We genotyped five single-nucleotide polymorphisms (SNPs) in the TLR2 gene and assessed the allele and haplotype diversities between cases and controls for all SNPs. RESULTS No significant differences in the frequency of TLR2 alleles and haplotypes in the NTG cases were detected, compared with the controls. CONCLUSIONS Our study showed no evidence for an association between TLR2 polymorphisms and NTG. TLR2 polymorphisms may not play an important role in NTG pathogenesis in the Japanese population.
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Takahashi H, Iijima H. Sectoral thinning of the retina after branch retinal artery occlusion. Jpn J Ophthalmol 2009; 53:494-500. [PMID: 19847605 DOI: 10.1007/s10384-009-0714-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2009] [Accepted: 04/13/2009] [Indexed: 10/20/2022]
Abstract
PURPOSE We studied the temporal aspects of retinal thickness in eyes with branch retinal artery occlusion (BRAO) to demonstrate the retinal thinning process subsequent to the acute stage of the disease. METHODS We studied the retinal thickness map obtained with optical coherence tomography (OCT) in nine eyes of nine patients with BRAO. Central foveal thickness and average retinal thickness in the superior or inferior sectors of the inner macula (IM) and outer macula (OM) were measured several times after the onset of BRAO. RESULTS All follow-up data combined from the eyes with the occluded branch artery on the same vertical side showed a common pattern of decrease in the retinal thickness in the affected superior or inferior sectors of the IM and OM, which was described by an exponential decay curve, whereas few changes were seen in central foveal thickness. The fitting of the reducing retinal thickness curves to an exponential decay curve led to the final estimated thickness in the affected sectors of 60% that of the control. CONCLUSION The initially thickened retina in the vertical sectors of the macula in eyes with BRAO decreases exponentially to a final thickness of 60% of that the normal retina.
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Kamio M, Meguro A, Ota M, Nomura N, Kashiwagi K, Mabuchi F, Iijima H, Kawase K, Yamamoto T, Nakamura M, Negi A, Sagara T, Nishida T, Inatani M, Tanihara H, Aihara M, Araie M, Fukuchi T, Abe H, Higashide T, Sugiyama K, Kanamoto T, Kiuchi Y, Iwase A, Ohno S, Inoko H, Mizuki N. Investigation of the association between the GLC3A locus and normal tension glaucoma in Japanese patients by microsatellite analysis. Clin Ophthalmol 2009; 3:183-8. [PMID: 19668563 PMCID: PMC2708983 DOI: 10.2147/opth.s4727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Purpose: To investigate whether the GLC3A locus harboring the CYP1B1 gene is associated with normal tension glaucoma (NTG) in Japanese patients. Materials and Methods: One hundred forty-two Japanese patients with NTG and 101 Japanese healthy controls were recruited. Patients exhibiting a comparatively early onset were selected as this suggests that genetic factors may show stronger involvement. Genotyping and assessment of allelic diversity was performed on 13 highly polymorphic microsatellite markers in and around the GLC3A locus. Results: There were decreased frequencies of the 444 allele of D2S0416i and the 258 allele of D2S0425i in cases compared to controls (P = 0.022 and P = 0.034, respectively). However, this statistical significance disappeared when corrected (Pc > 0.05). We did not find any significant association between the remaining 11 microsatellite markers, including D2S177, which may be associated with CYP1B1, and NTG (P > 0.05). Conclusions: Our study showed no association between the GLCA3 locus and NTG, suggesting that the CYP1B1 gene, which is reportedly involved in a range of glaucoma phenotypes, may not be an associated factor in the pathogenesis of NTG.
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Nakamura K, Ota M, Meguro A, Nomura N, Kashiwagi K, Mabuchi F, Iijima H, Kawase K, Yamamoto T, Nakamura M, Negi A, Sagara T, Nishida T, Inatani M, Tanihara H, Aihara M, Araie M, Fukuchi T, Abe H, Higashide T, Sugiyama K, Kanamoto T, Kiuchi Y, Iwase A, Ohno S, Inoko H, Mizuki N. Association of microsatellite polymorphisms of the GPDS1 locus with normal tension glaucoma in the Japanese population. Clin Ophthalmol 2009; 3:307-12. [PMID: 19668583 PMCID: PMC2708999 DOI: 10.2147/opth.s5132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND To investigate whether the GPDS1 locus, a potential causative locus of pigment-dispersion syndrome, is associated with normal-tension glaucoma (NTG) in Japanese patients. MATERIALS AND METHODS We used polymerase chain reaction amplification with sequence-specific primers to analyze 20 polymorphic microsatellite markers in and around the GPDS1 locus with an automated DNA analyzer and automated fragment detection by fluorescent-based technology. The DNA samples used for these analyses were obtained from ethnicity- and gender-matched patients, including 141 Japanese patients with NTG and 101 healthy controls. Patients exhibiting a comparatively early onset were selected as this suggests that genetic factors may show stronger involvement. RESULTS One allele of D7S2462 exhibited a frequency that was significantly decreased in NTG cases compared to controls (P = 0.0013, Pc = 0.019, OR = 0.48, 95% CI = 0.30-0.75). Alleles at another six microsatellite loci were positively or negatively associated with NTG, but these associations did not retain statistical significance after Bonferroni correction (P < 0.05, Pc > 0.05). CONCLUSION Our study showed a significant association between the GPDS1 locus and NTG, suggesting that there may be some genetic risk factor(s) in the development of NTG.
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Iijima H, Patrzyc HB, Budzinski EE, Freund HG, Dawidzik JB, Rodabaugh KJ, Box HC. A study of pyrimidine base damage in relation to oxidative stress and cancer. Br J Cancer 2009; 101:452-6. [PMID: 19603029 PMCID: PMC2720235 DOI: 10.1038/sj.bjc.6605176] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Background: A long-standing hypothesis is that oxidative stress is a risk factor for cancer. Support for this hypothesis comes from observations of higher levels of oxidative damage in the DNA of WBC of cancer patients compared with healthy controls. Methods: Two generally overlooked types of DNA damage, the formamide modification and the thymine glycol modification, both derived from pyrimidine bases, were assayed as markers of oxidative stress. Damage levels were measured in the DNA of WBC of ovarian cancer patients and of healthy controls. Results: The levels of both modifications were higher in ovarian cancer patients than in healthy controls although in the case of the formamide modification age could not be ruled out as a factor. Conclusion: Our results in combination with other published measurements of oxidative DNA damage support the hypothesis that oxidative damage, on average, is higher in WBC of cancer patients than in healthy controls.
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100
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Aso H, Iijima H, Imai M, Gotoh T. Temporal changes in retinal thickness after removal of the epiretinal membrane. Acta Ophthalmol 2009; 87:419-23. [PMID: 19210327 DOI: 10.1111/j.1755-3768.2008.01264.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE We aimed to study the temporal aspects of the postoperative reduction of retinal thickness in eyes with epiretinal membrane after vitrectomy with peeling of the epiretinal membrane and internal limiting membrane. METHODS In a retrospective study performed as a non-comparative, interventional case series, 16 eyes from 15 patients with idiopathic epiretinal membrane who underwent vitrectomy and removal of the epiretinal membrane were followed up using optical coherence tomography measurements. Retinal thickness in the macular area was assessed by the foveal thickness and macular volume in a circle 6 mm in diameter. RESULTS Scattergrams of the foveal thickness and macular volume were best fitted with exponential curves. The average time constants of the exponential curve for foveal thickness and macular volume changes were 31 days (range 4-109 days) and 36 days (range 5-100 days), respectively. The average expected final values for foveal thickness and macular volume were 334 microm (range 206-408 microm) and 7.53 mm(3) (range 6.57-8.66 mm(3)), respectively, which were significantly greater than those in normal controls (p < 0.0001, t-test). CONCLUSIONS Retinal thickness decreases rapidly immediately after surgical removal of the epiretinal membrane and the reduction rate gradually slows thereafter. Approximation of the exponential curve provides an estimation of final retinal thickness after surgical removal of the epiretinal membrane; final thickness is expected to be greater than in normal eyes.
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