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Greig EC, Moult EM, Despotovic IN, Hodgson LAB, Pramil V, Fujimoto JG, Waheed NK, Guymer RH, Wu Z. Assessment of Choriocapillaris Flow Prior to Nascent Geographic Atrophy Development Using Optical Coherence Tomography Angiography. Invest Ophthalmol Vis Sci 2024; 65:33. [PMID: 38236187 PMCID: PMC10807498 DOI: 10.1167/iovs.65.1.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 12/30/2023] [Indexed: 01/19/2024] Open
Abstract
Purpose To assess the relationship between choriocapillaris (CC) loss and the development of nascent geographic atrophy (nGA) using optical coherence tomography angiography (OCTA) imaging. Methods In total, 105 from 62 participants with bilateral large drusen, without late age-related macular degeneration (AMD) or nGA at baseline, were included in this prospective, longitudinal, observational study. Participants underwent swept-source OCTA imaging at 6-month intervals. CC flow deficit percentage (FD%) and drusen volume measurements were determined for the visit prior to nGA development or the second-to-last visit if nGA did not develop. Global and local analyses, the latter based on analyses within superpixels (120 × 120-µm regions), were performed to examine the association between CC FD% and future nGA development. Results A total of 15 (14%) eyes from 12 (19%) participants developed nGA. There was no significant difference in global CC FD% at the visit prior to nGA development between eyes that developed nGA and those that did not (P = 0.399). In contrast, CC FD% was significantly higher in superpixels that subsequently developed nGA compared to those that did not (P < 0.001), and a model utilizing CC FD% was significantly better at predicting foci of future nGA development at the superpixel level than a model using drusen volume alone (P ≤ 0.040). Conclusions This study showed that significant impairments in CC blood flow could be detected locally prior to the development of nGA. These findings add to our understanding of the pathophysiologic changes that occur with atrophy development in AMD.
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Affiliation(s)
- Eugenia Custo Greig
- New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States
- Yale School of Medicine, New Haven, Connecticut, United States
| | - Eric M. Moult
- Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
| | - Ivana N. Despotovic
- New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States
| | - Lauren A. B. Hodgson
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
| | - Varsha Pramil
- New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States
| | - James G. Fujimoto
- Department of Electrical Engineering and Computer Science, Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States
| | - Nadia K. Waheed
- New England Eye Center, Tufts Medical Center, Boston, Massachusetts, United States
| | - Robyn H. Guymer
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia
| | - Zhichao Wu
- Centre for Eye Research Australia, Royal Victorian Eye and Ear Hospital, East Melbourne, Victoria, Australia
- Ophthalmology, Department of Surgery, The University of Melbourne, Melbourne, Victoria, Australia
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Sen S. Drusen-like deposits in systemic disorders: A point of convergence for nephrologists and ophthalmologists. J Postgrad Med 2021; 67:6. [PMID: 33565471 PMCID: PMC8098872 DOI: 10.4103/jpgm.jpgm_1099_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- S Sen
- Department of Retina and Vitreous Services, Aravind Eye Hospital, Madurai, Tamil Nadu, India
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Su Y, Hu Z, Pan T, Chen L, Xie P, Liu Q. Complement factor B gene polymorphisms and risk of age-related macular degeneration: A meta-analysis. Eur J Ophthalmol 2019; 30:743-755. [PMID: 30974970 DOI: 10.1177/1120672119840245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Objective: To investigate the potential correlation between complement factor B polymorphisms and age-related macular degeneration. Methods: We retrieved relevant articles systematically by searching PubMed and Web of Science databases. The pooled odds ratios and 95% confidence intervals were calculated for five complement factor B polymorphism rs641153, rs4151667, rs1048709, rs2072633, and rs12614 using data from included articles in both random effects and fixed effect models. Subgroup meta-analysis based on age-related macular degeneration type, choroidal neovascular disease (rs641153 and rs4151667), geographic atrophy (rs641153 and rs4151667), and races was also performed. Results: In the overall comparison, we observed that the distribution of rs641153 and the risk of age-related macular degeneration were significantly correlated (p < 0.00001). Similar results were obtained in subgroup analysis based on race (Caucasians, p < 0.00001; Asians, p = 0.003) and age-related macular degeneration type (choroidal neovascular disease, p < 0.00001; geographic atrophy, p = 0.04). As for complement factor B rs4151667, the genotypic effects were also demonstrated statistically significant in overall analysis (p < 0.00001) and only in Caucasians diagnosed with choroidal neovascular disease (p = 0.004), but not in Asians. Moreover, no statistically significant correlations between the complement factor B polymorphisms rs1048709 (p = 0.63), rs2072633 (p = 0.72), rs12614 (p = 0.98) and susceptibility to age-related macular degeneration were detected in either overall or subgroup analysis. Conclusion: Collectively, we demonstrated that the complement factor B genes rs641153 and rs4151667, but not rs1048709, rs2072633, rs12614, were associated with the susceptibility of age-related macular degeneration and might play predictive roles in future age-related macular degeneration diagnosis. More studies are needed to verify these findings.
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Affiliation(s)
- Yun Su
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Zizhong Hu
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Ting Pan
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
- Department of Ophthalmology, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, P.R. China
| | - Lu Chen
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Ping Xie
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
| | - Qinghuai Liu
- Department of Ophthalmology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, P.R. China
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Bonyadi M, Norouzi N, Babaei E, Jabbarpoor Bonyadi MH, Javadzadeh A, Yaseri M, Soheilian M. Association of polymorphisms of complement factor I rs141853578 (G119R) with age-related macular degeneration in Iranian population. Int Ophthalmol 2018; 39:551-556. [PMID: 29392637 DOI: 10.1007/s10792-018-0835-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/25/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Age-related macular degeneration (AMD) is a complex disease, and recent studies have shown role of complement system genes in its development. Complement factor I regulates the complement pathways, and relationship between CFI polymorphisms and AMD is controversial. We evaluated the possible association of complement factor I rs141853578 (G119R) variation with advanced AMD in Iranian patients. MATERIALS AND METHODS We included 371 case-control samples consisting of 220 advanced AMD patients and 151 genetically unrelated healthy controls. Extracted DNA samples amplified to obtain fragment including the polymorphic complement factor I rs141853578 (G119R) region. RESULTS The distribution of the genotypes was significantly different in the AMD patients compared to that of controls (p = 0.035). The TT genotype frequencies for CFI were significantly higher in AMD group (7.7 vs. 2%, OR 4.67, CI 1.33-16.45, p = 0.016). This significant difference was maintained after adjustment for the effects of age and gender (OR 5.09, CI 1.42-18.20, p = 0.012). The minor allele frequency (T allele) was also significantly higher in AMD patients compared to that of controls (29.3 vs. 21.5% OR 1.51, CI 1.07-2.13, p = 0.018). CONCLUSION Current study showed that CFI rs141853578 (G119R) is a risk factor for developing advanced type AMD. This study also suggests that the frequency of G119R polymorphism in our population is not as rare as reported from other populations.
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Affiliation(s)
- Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Neda Norouzi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Esmaeil Babaei
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | | | - Alireza Javadzadeh
- Department of Ophthalmology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Yaseri
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Jabbarpoor Bonyadi MH, Yaseri M, Bonyadi M, Soheilian M, Nikkhah H. Association of combined cigarette smoking and ARMS2/LOC387715 A69S polymorphisms with age-related macular degeneration: A meta-analysis. Ophthalmic Genet 2017; 38:308-313. [DOI: 10.1080/13816810.2016.1237664] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, Iran
| | - Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Homayoun Nikkhah
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Khan KN, Mahroo OA, Khan RS, Mohamed MD, McKibbin M, Bird A, Michaelides M, Tufail A, Moore AT. Differentiating drusen: Drusen and drusen-like appearances associated with ageing, age-related macular degeneration, inherited eye disease and other pathological processes. Prog Retin Eye Res 2016; 53:70-106. [DOI: 10.1016/j.preteyeres.2016.04.008] [Citation(s) in RCA: 122] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 04/24/2016] [Accepted: 04/27/2016] [Indexed: 12/11/2022]
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7
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Bonyadi M, Mohammadian T, Jabbarpoor Bonyadi MH, Fotouhi N, Soheilian M, Javadzadeh A, Moein H, Yaseri M. Association of polymorphisms in complement component 3 with age-related macular degeneration in an Iranian population. Ophthalmic Genet 2016; 38:61-66. [DOI: 10.3109/13816810.2015.1126612] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mortaza Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Liver and Gastrointestinal Disease Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Tahereh Mohammadian
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Mohammad Hossein Jabbarpoor Bonyadi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nikou Fotouhi
- Center of Excellence for Biodiversity, Faculty of Natural Sciences, University of Tabriz, Tabriz, Iran
| | - Masoud Soheilian
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alireza Javadzadeh
- Department of Ophthalmology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamidreza Moein
- Ocular Tissue Engineering Research Center, Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mehdi Yaseri
- Department of Biostatistics and Epidemiology, Tehran University of Medical Sciences, Tehran, Iran
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Hu Z, Xie P, Ding Y, Yuan D, Liu Q. Association between variants A69S in ARMS2 gene and response to treatment of exudative AMD: a meta-analysis. Br J Ophthalmol 2014; 99:593-8. [DOI: 10.1136/bjophthalmol-2014-305488] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/29/2014] [Indexed: 12/28/2022]
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9
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Boon CJ, van de Ven JP, Hoyng CB, den Hollander AI, Klevering BJ. Cuticular drusen: Stars in the sky. Prog Retin Eye Res 2013; 37:90-113. [DOI: 10.1016/j.preteyeres.2013.08.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2013] [Revised: 08/14/2013] [Accepted: 08/19/2013] [Indexed: 12/24/2022]
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Kang HK, Yoon MH, Lee DH, Chin HS. Pharmacogenetic influence of LOC387715/HTRA1 on the efficacy of bevacizumab treatment for age-related macular degeneration in a Korean population. KOREAN JOURNAL OF OPHTHALMOLOGY 2012; 26:414-22. [PMID: 23204795 PMCID: PMC3506814 DOI: 10.3341/kjo.2012.26.6.414] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Accepted: 02/07/2012] [Indexed: 11/28/2022] Open
Abstract
PURPOSE The purpose of this study was to determine the pharmacogenetic effects of complement factor H (CFH) Y402H, LOC387715 and high-temperature requirement factor A1 (HTRA1) genotypes on the treatment of exudative age-related macular degeneration (AMD) by intravitreal bevacizumab injection in a Korean population. METHODS Seventy-five patients diagnosed with exudative AMD were treated with intravitreal bevacizumab (2.5 mg) monotherapy. All patients received three initial intravitreal bevacizumab injections every four weeks and were then treated "as needed" based on clinical findings, optical coherence tomography and fluorescein angiography during the 12 month follow-up period after the third injection. RESULTS The difference in visual acuity improvement among the three genotypes of LOC387715 were statistically significant at six months post-treatment (logarithm of the minimum angle of resolution; TT, 0.346; GT, 0.264; GG, 0.188; p = 0.037). Among the LOC387715 genotypes, the number of additional injections was lower in patients who had the risk T allele (GG, 2.143; GT, 2.000; TT, 1.575; p = 0.064). There was no significant difference between visual acuity and central macular thickness change in the CFH Y402H polymorphism group during the 12 month follow-up period. However, the TC group of CFH Y402H required more additional bevacizumab injections than the TT group (TT, 1.517; TC, 3.363; p = 0.020). CONCLUSIONS This study demonstrated that different LOC387715/HTRA1 genotypes resulted in different bevacizumab treatment responses on exudative AMD. Patients with the risk allele had an improved treatment response and less need for additional injections. However, patients with the CFH Y402H risk allele needed more additional injections of bevacizumab in order to improve visual acuity. This study illustrates how pharmacogenetic factors may help determine treatment modality and dosing. This could ultimately provide basic data for 'personalized medicine' in AMD.
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Affiliation(s)
- Haeng Ku Kang
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Myung Hun Yoon
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
| | - Dae Hyun Lee
- Inha University School of Medicine, Incheon, Korea
| | - Hee Seung Chin
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Incheon, Korea
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11
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Kim SJ, Lee SJ, Kim NR, Chin HS. Association of polymorphisms in C2, CFB and C3 with exudative age-related macular degeneration in a Korean population. Exp Eye Res 2012; 96:42-7. [PMID: 22273503 DOI: 10.1016/j.exer.2012.01.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 01/02/2012] [Accepted: 01/09/2012] [Indexed: 11/18/2022]
Abstract
This study was to investigate the association of genetic polymorphisms in complement component 2 (C2), complement factor B (CFB) and complement component 3 (C3) with exudative age-related macular degeneration (AMD) in a Korean population and the gene-gene and gene-environment interactions in the development of AMD. A total of six SNPs that are located in the C2 (rs547154, rs9332739), CFB (rs4151667, rs641153) and C3 (rs1047286, rs2230199) genes were genotyped in 350 samples comprised of 153 cases, 197 controls. The risk allele frequencies for rs547154 in C2 were 6.54% and 8.12% in AMD patients and controls. Those for rs641153 in CFB were 6.54% and 8.63% in AMD patients and controls. The risk allele frequency for rs9332739 in C2 (AMD, 0.65%, control, 2.03%) and rs4151667 in CFB (AMD, 0.65%, control, 1.78%) was very low. The protective allele of four SNPs was not significantly associated with decreased risk for AMD (P = 0.427, P = 0.199, P = 0.312, P = 0.303, respectively). The homozygotes for the protective allele of four SNPs were not significantly associated with decreased risk for AMD (P = 0.324, P = 0.474, P = 0.309, P = 0.411, respectively). The genetic effect of two SNPs in C3 could not be investigated because the variants were not observed. There was no evidence to support an interaction of these SNPs with LOC387715/HTRA1 variants or with environmental exposure like smoking. In conclusion, the genetic effect of C2, CFB and C3 polymorphisms, which are known to be important for AMD in Caucasian, were not significant in the Korean population. The low minor allele frequency of these SNPs in Koreans might have affected the results of this study. Ethnic differences in the roles of C2, CFB and C3 in conferring a risk of AMD should be further investigated.
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Affiliation(s)
- Suk Jin Kim
- Department of Ophthalmology and Inha Vision Science Laboratory, Inha University School of Medicine, Jung-Gu, Incheon, Republic of Korea
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Mullins RF, Johnson MN, Faidley EA, Skeie JM, Huang J. Choriocapillaris vascular dropout related to density of drusen in human eyes with early age-related macular degeneration. Invest Ophthalmol Vis Sci 2011; 52:1606-12. [PMID: 21398287 DOI: 10.1167/iovs.10-6476] [Citation(s) in RCA: 276] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
PURPOSE Age-related macular degeneration (AMD) is a common, potentially blinding disease characterized by the presence of extracellular deposits beneath the retinal pigment epithelium (RPE). Choroidal vascular changes have also been noted in AMD. This study examined the relationship between the choroidal vasculature and extent of drusen and other sub-RPE deposits, the key pathologic landmarks of AMD. METHODS Sections of the maculas of 45 human eyes (21 early AMD and 24 age-matched control) were evaluated morphometrically. The cross-sectional area of sub-RPE deposits, vascular density, number of CD45+ leukocytes, and number of "ghost vessels" were determined in a masked fashion and evaluated by regression analysis. In addition, the extramacular vascular density either directly beneath drusen or adjacent to drusen was evaluated in a separate set of donor eyes. RESULTS The vascular density of the choriocapillaris showed a trend toward decreasing in association with AMD status. By linear regression analysis, vascular density was inversely associated with sub-RPE deposit density (r(2) = 0.22, P < 0.01). The number of ghost vessels was negatively correlated with vascular density (r(2) = 0.55, P < 0.001) and positively correlated with sub-RPE deposit density (r(2) = 0.57, P < 0.001). In morphologic studies of extramacular solitary drusen, vascular density beneath drusen was found to be 45% lower than adjacent to drusen (P < 0.01). CONCLUSIONS These findings support the concept that microvascular changes are related to the pathogenesis of AMD and suggest that vascular endothelial cell loss occurs in association with sub-RPE deposit formation. Whether microvascular events are a cause or consequence of drusen or other deposit formation remains to be determined.
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Affiliation(s)
- Robert F Mullins
- Department of Ophthalmology and Visual Sciences, Carver College of Medicine, Iowa City, Iowa, USA.
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Lee SJ, Kim NR, Chin HS. LOC387715/HTRA1 polymorphisms, smoking and combined effects on exudative age-related macular degeneration in a Korean population. Clin Exp Ophthalmol 2010; 38:698-704. [PMID: 20456446 DOI: 10.1111/j.1442-9071.2010.02316.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND This study was to investigate the association of two single nucleotide polymorphisms (SNPs) in LOC387715 and HTRA1 with exudative age-related macular degeneration (AMD) in a Korean population and the gene-gene and gene-environment interactions in the development of AMD. METHODS We genotyped two SNPs that are located in the LOC387715 locus (rs10490924) and HTRA1 (rs11200638) in 137 cases of exudative AMD and 187 controls. RESULTS Both two SNPs were significantly associated with AMD (P = 0.0001). Homozygotes for the risk allele at LOC387715 and HTRA1 had a 3.80-fold and a 4.03-fold increased risk of exudative AMD, respectively, compared with homozygotes for the wild-type allele (P = 0.0001). The joint effects for complement factor H (CFH) Y402H and 10q26 variants indicated an increased risk of exudative AMD. The odds ratios (ORs) of AMD for individuals carrying one-, two- and three-copy risk alleles of CFH Y402H and LOC387715 were 1.08, 3.49 and 3.64, respectively. Also, the combination effect of the CFH Y402H risk alleles with HTRA1 risk alleles was dose-dependent. The interaction analysis between gene and environmental factors showed that among several factors, smoking synergistically increased the susceptibility of AMD for variants of LOC387715 and HTRA1, with OR 8.33 (3.05-22.74) and OR 8.50 (3.07-23.51), respectively. CONCLUSION This study demonstrated the significant association of the 10q26 SNPs (HTRA1 and LOC387715) in an AMD cohort from Korea and was consistent with previous studies from other populations. Also, a statistically significant interaction between genetic and environmental factors was found.
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Affiliation(s)
- Soo J Lee
- Department of Ophthalmology, Inha University School of Medicine, Incheon, Korea
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Urano T, Narusawa K, Kobayashi S, Shiraki M, Horie-Inoue K, Sasaki N, Hosoi T, Ouchi Y, Nakamura T, Inoue S. Association of HTRA1 promoter polymorphism with spinal disc degeneration in Japanese women. J Bone Miner Metab 2010; 28:220-6. [PMID: 19798546 DOI: 10.1007/s00774-009-0124-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2009] [Accepted: 08/09/2009] [Indexed: 11/29/2022]
Abstract
HTRA1 (high-temperature requirement A1) has been implicated in the modulation of various disease pathologies. HTRA1 expression is upregulated in osteoarthritic joints, suggesting that it may contribute to the development of this debilitating disease. Moreover, recent reports have shown that the rs11200638, a single nucleotide polymorphism (SNP) in the promoter region of the HTRA1 gene, is strongly associated with an increased prevalence of age-related macular degeneration (AMD). In the present study, we examined the expression of the HTRA1 in human primary chondrocytes and an association between the rs11200638 SNP and radiographic features of spinal disc degeneration in 513 postmenopausal Japanese women. HTRA1 mRNA was detected and increased by TGF-beta treatment in human primary chondrocytes. As an association study of rs11200638 SNP in the HTRA1 gene, the subjects without the G allele (AA; n = 89) had a significantly higher spinal disc space narrowing score than the subjects bearing at least one G allele (GG + GA; n = 424) (P = 0.0292). We found that subjects without the G allele (AA) were significantly overrepresented in the subjects having a higher (> or =4) disc space narrowing score (P = 0.013; odds ratio 1.97; 95% confidence interval 1.15-3.37 by logistic regression analysis). A genetic variation at the HTRA1 gene promoter locus is associated with spinal disc degeneration, suggesting an involvement of the HTRA1 gene in osteoarthritis.
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Affiliation(s)
- Tomohiko Urano
- Department of Geriatric Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8655, Japan
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Tuo J, Ross RJ, Reed GF, Yan Q, Wang JJ, Bojanowski CM, Chew EY, Feng X, Olsen TW, Ferris FL, Mitchell P, Chan CC. The HtrA1 promoter polymorphism, smoking, and age-related macular degeneration in multiple case-control samples. Ophthalmology 2008; 115:1891-8. [PMID: 18718667 PMCID: PMC2610681 DOI: 10.1016/j.ophtha.2008.05.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2008] [Revised: 05/07/2008] [Accepted: 05/13/2008] [Indexed: 10/21/2022] Open
Abstract
OBJECTIVE To assess the association and combined effect on the risk of age-related macular degeneration (AMD) by the HtrA1 and complement factor H (CFH) polymorphisms, smoking, and serum cholesterol. DESIGN Clinic-based and population-based case control study. PARTICIPANTS A total of 805 AMD cases and 921 controls from The Eye Clinic of National Eye Institute, Age-Related Eye Diseases Study, Blue Mountain Eye Study Cohort, and Minnesota Lions Eye Bank. METHODS DNA samples were genotyped for polymorphisms of rs11200638 in HtrA1 promoter and rs380390 in CFH. HtrA1 protein in ocular tissue was measured. Interactions of the HtrA1 risk allele with the CFH risk variant, smoking status, and cholesterol were assessed. MAIN OUTCOME MEASURES AMD was evaluated by retinal specialists, and AMD subtypes (geographic atrophy and neovascularization) were determined. RESULTS Strong associations of the HtrA1 risk allele (A) with AMD were present in all sample sets. A similar magnitude of association was observed for central geographic atrophy and neovascular AMD. The combination of the HtrA1 and CFH risk alleles increased AMD susceptibility, as did the combination of the HtrA1 risk allele with smoking. No combined effect of HtrA1 risk allele and cholesterol level was found. Enhanced expression of HtrA1 protein was detected in retina with AMD. CONCLUSIONS Findings from multiple samples support an AMD genetic variant harbored within HtrA1. The risk of advanced AMD increased when the presence of risk alleles from HtrA1 was combined with either CFH risk alleles or history of smoking.
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Affiliation(s)
- Jingsheng Tuo
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Robert J. Ross
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - George F. Reed
- Division of Epidemiology and Clinical Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Qing Yan
- Division of Epidemiology and Clinical Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Jie Jin Wang
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, Westmead, Australia
| | - Christine M. Bojanowski
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Emily Y. Chew
- Division of Epidemiology and Clinical Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Xiao Feng
- Department of Ophthalmology, University of Minnesota, Minneapolis, MN, USA
| | - Timothy W. Olsen
- Department of Ophthalmology, University of Minnesota, Minneapolis, MN, USA
| | - Frederick L. Ferris
- Division of Epidemiology and Clinical Research, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Paul Mitchell
- Centre for Vision Research, Department of Ophthalmology and Westmead Millennium Institute, University of Sydney, Westmead, Australia
| | - Chi-Chao Chan
- Laboratory of Immunology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
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Skeie JM, Mullins RF. Macrophages in neovascular age-related macular degeneration: friends or foes? Eye (Lond) 2008; 23:747-55. [PMID: 18600240 DOI: 10.1038/eye.2008.206] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The events that lead to choroidal neovascularization in eyes with age-related macular degeneration are poorly understood. One possibility that has been explored in a number of studies is that macrophages can promote neovascular changes. In this paper, we summarize the evidence for inflammation in general and macrophages in particular in pathologic neovascularization, and discuss how the diverse functions of these cells may promote or inhibit macular disease. We also discuss some of the conflicting findings regarding the role of macrophages in experimental choroidal neovascularization in mouse models, and suggest areas for future research.
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Affiliation(s)
- J M Skeie
- Department of Ophthalmology and Visual Sciences, Carver Family Center for Macular Degeneration, The University of Iowa, Iowa City, IA 52242, USA
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