1
|
Chou YI, Chang HY, Lin MY, Tseng CH, Wang TJ, Lin IC. Risk analysis for patients with arterial thromboembolic events after intravitreal ranibizumab or aflibercept injections. Sci Rep 2023; 13:7597. [PMID: 37165045 PMCID: PMC10172364 DOI: 10.1038/s41598-023-34128-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2023] [Accepted: 04/25/2023] [Indexed: 05/12/2023] Open
Abstract
Intravitreal anti-vascular endothelial growth factor (anti-VEGF) agents have been increasingly applied in the treatment of retinal neovascular diseases. Concerns have arisen that these intravitreal agents may be associated with a potential risk of arterial thromboembolic (ATE) events. We conducted a retrospective, nationwide population-based cohort study to analyze the risks for ATE events in patients receiving intravitreal ranibizumab (IVR) or intravitreal aflibercept (IVA). Data (2011-2018) were obtained from Taiwan's National Health Insurance Research Database. Cox proportional-hazards model was used to identify the risk factors for ATEs. Of the total 3,469 patients, 1393 and 2076 patients received IVR and IVA, respectively. In our result, 38 ATEs occurred within 6 months after IVR or IVA. The risk of ATEs was lower in patients receiving IVR than in those receiving IVA (adjusted hazard ratio [aHR], 0.27; 95% confidence interval [CI], 0.11-0.66). Patients with coronary artery disease (CAD) exhibited a higher risk of ATEs than did those without CAD (aHR, 3.47; 95% CI, 1.41-8.53). The risk of ATEs was higher in patients with an event of acute myocardial infarction (AMI) or ischemic stroke (IS) within 6 months prior to index IVI than in those without recent AMI/IS events (aHR, 23.8; 95% CI, 7.35-77.2 and IS: aHR, 290.2; 95% CI, 103.1-816.4). In conclusion, compared with IVA, IVR was associated with a lower risk of ATEs. When strategies for anti-VEGF agents are devised, risk factors, such as CAD and a history of AMI or IS within 6 months should be considered. Further large-scale studies are warranted to elucidate the safety of anti-VEGF injections.
Collapse
Affiliation(s)
- Yun-I Chou
- Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Hao-Yun Chang
- School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Meng-Yin Lin
- Department of Ophthalmology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Ching-Han Tseng
- Department of Ophthalmology, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
- Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Tsung-Jen Wang
- Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Ophthalmology, Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
| | - I-Chan Lin
- Department of Ophthalmology, School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan.
- Department of Ophthalmology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.
| |
Collapse
|
2
|
Shimizu Y, Miyata M, Ooto S, Miyake M, Mori Y, Tamura H, Ueda‐Arakawa N, Uji A, Muraoka Y, Takahashi A, Wakazono T, Yamashiro K, Hata M, Tsujikawa A. Pachychoroid-phenotype effects on 5-year visual outcomes of anti-VEGF monotherapy in polypoidal choroidal vasculopathy. Acta Ophthalmol 2022; 100:e943-e949. [PMID: 34533280 DOI: 10.1111/aos.15015] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 08/31/2021] [Indexed: 12/14/2022]
Abstract
PURPOSE To investigate whether the efficacy of anti-vascular endothelial growth factor (VEGF) monotherapy for polypoidal choroidal vasculopathy (PCV) differs between pachychoroid and non-pachychoroid phenotypes in the long term. METHODS This retrospective longitudinal study included 115 treatment-naïve eyes in 115 consecutive patients with symptomatic PCV who were treated with anti-VEGF monotherapy and were followed up for 5 years. Eligible eyes were assigned to either a pachy-PCV group, with a pachychoroid phenotype, or a non-pachy-PCV group, without a pachychoroid phenotype. Best-corrected visual acuity (BCVA) and other parameters over a 5-year period were compared between the groups. RESULTS Forty-eight eyes and 67 eyes were classified into the pachy-PCV and non-pachy-PCV groups respectively. Baseline and 5-year BCVA (logarithm of the minimum angle of resolution) were 0.19 ± 0.20 and 0.16 ± 0.28 in the pachy-PCV group, respectively, and 0.25 ± 0.26 and 0.26 ± 0.36 in the non-pachy-PCV group respectively. BCVA did not change significantly in either group (p = 0.18 and 0.08 respectively). BCVA did not differ between the groups at any observation time-point. Subfoveal choroidal thickness (SFCT) at baseline and at 5 years was significantly higher in the pachy-PCV group than in the non-pachy-PCV group (both p < 0.001); however, the mean rate of decrease in SFCT did not differ in either group over the 5-year period (22% vs. 23%, p = 0.81). CONCLUSION Our findings suggest that anti-VEGF monotherapy was similarly effective for pachychoroid- and non-pachychoroid-phenotype eyes with PCV, for at least 5 years, although further studies are required.
Collapse
Affiliation(s)
- Yuichiro Shimizu
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Manabu Miyata
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Sotaro Ooto
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Masahiro Miyake
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Yuki Mori
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Hiroshi Tamura
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Naoko Ueda‐Arakawa
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Akihito Uji
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Yuki Muraoka
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Ayako Takahashi
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Tomotaka Wakazono
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| | - Kenji Yamashiro
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
- Department of Ophthalmology Red Cross Otsu Hospital Otsu City Japan
| | - Masayuki Hata
- Biochemistry and Molecular Medicine Maisonneuve‐Rosemont Hospital Research Centre University of Montreal Montreal QC Canada
| | - Akitaka Tsujikawa
- Department of Ophthalmology and Visual Sciences Kyoto University Graduate School of Medicine Kyoto City Japan
| |
Collapse
|
3
|
Quist SW, de Jong LA, van Asten F, Knoester P, Postma MJ, Freriks RD. Cost-minimisation analysis of a treat-and-extend regimen with anti-VEGFs in patients with neovascular age-related macular degeneration. Graefes Arch Clin Exp Ophthalmol 2021; 260:1083-1095. [PMID: 34643793 PMCID: PMC8511619 DOI: 10.1007/s00417-021-05359-x] [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] [Received: 05/06/2021] [Revised: 07/16/2021] [Accepted: 07/27/2021] [Indexed: 12/02/2022] Open
Abstract
Purpose Although intraocular anti-vascular endothelial growth factors (anti-VEGFs) are effective as treatment of neovascular age-related macular degeneration (nAMD), the (economic) burden on the healthcare system is considerable. A treat-and-extend (T&E) regimen is associated with a lower number of injections without compromising the effectiveness and can therefore help optimise nAMD treatment. This study investigates the per-patient costs associated with nAMD treatment, when using aflibercept, bevacizumab, or ranibizumab with a T&E regimen. Methods In this cost-minimisation model, the per-patient costs in the Netherlands were modelled using a healthcare payers’ perspective over a 3-year time horizon with the assumption that efficacy of treatments is similar. Additionally, the break-even price of the different anti-VEGFs was calculated relative to the cheapest option and injection frequency. Results The injection frequency varied from 14.2 for aflibercept to 27.4 for bevacizumab in 3 years. Nonetheless, bevacizumab remains the cheapest treatment option (€14,215), followed by aflibercept (€18,202) and ranibizumab (€31,048). The medication covers the majority of the per-patient costs for aflibercept and ranibizumab, while administration covers the majority of the per-patient costs for bevacizumab. The break-even prices of aflibercept and ranibizumab are respectively €507 and €60.58 per injection. Brolucizumab was included in the scenario analysis and was more expensive than aflibercept (€20,446). Brolucizumab should reduce to 13.8 injections over 3 years to be as costly as aflibercept. Conclusion Bevacizumab is the cheapest anti-VEGF treatment. The list prices of all anti-VEGFs should reduce to be as costly as bevacizumab. Aflibercept is the second-choice treatment and so far brolucizumab is not.
Collapse
Affiliation(s)
- S W Quist
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands. .,Asc Academics, Professor Enno Dirk Wiersmastraat 5, Groningen, The Netherlands.
| | - L A de Jong
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands.,Asc Academics, Professor Enno Dirk Wiersmastraat 5, Groningen, The Netherlands
| | - F van Asten
- Department of Ophthalmology, Radboud University Medical Center, Philips Van Leydenlaan 15, Nijmegen, The Netherlands
| | - P Knoester
- Department of Pharmacy, Alrijne Hospital, Simon Smitweg 1, Leiderdorp, The Netherlands
| | - M J Postma
- Department of Health Sciences, University of Groningen, University Medical Center Groningen, Hanzeplein 1, Groningen, The Netherlands.,Department of Economics, Econometrics & Finance, University of Groningen, Faculty of Economics & Business, Nettelbosje 2, Groningen, The Netherlands
| | - R D Freriks
- Asc Academics, Professor Enno Dirk Wiersmastraat 5, Groningen, The Netherlands.,Department of Economics, Econometrics & Finance, University of Groningen, Faculty of Economics & Business, Nettelbosje 2, Groningen, The Netherlands
| |
Collapse
|
4
|
Ogura Y, Iida T, Lee WK, Cheung CMG, Mitchell P, Leal S, Schmelter T, Ishibashi T. Efficacy and safety of intravitreal aflibercept for polypoidal choroidal vasculopathy: 96-week outcomes in the Japanese subgroup of the PLANET study. Jpn J Ophthalmol 2021; 65:344-353. [PMID: 33474611 DOI: 10.1007/s10384-020-00805-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Accepted: 10/31/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE To evaluate the efficacy and safety of intravitreal aflibercept (IVT-AFL) versus IVT-AFL plus rescue photodynamic therapy (IVT-AFL + rPDT) in the subgroup of Japanese patients with polypoidal choroidal vasculopathy (PCV) enrolled in the PLANET study. STUDY DESIGN A 96-week, double-masked, sham-controlled phase-3b/4 randomized clinical trial conducted at multiple centers from May 2014 to August 2016. PATIENTS AND METHODS Patients with PCV (BCVA 73-24 ETDRS letters [20/40-20/320 Snellen]) received 3 initial monthly doses of IVT-AFL 2 mg. At week 12, the patients were randomly assigned 1:1 to IVT-AFL + sham PDT or IVT-AFL + rPDT. Patients not requiring rescue received IVT-AFL every 8 weeks; those requiring rescue received IVT-AFL monthly plus sham/active PDT. Following week 52, the treatment intervals could be extended > 8 weeks. RESULTS The baseline demographics for the 159 Japanese patients were balanced. At week 96, the mean BCVA change was + 9.7 (IVT-AFL) versus + 9.5 letters (IVT-AFL + rPDT) (least-squares mean difference of - 0.3; 95% CI, - 3.7 to 3.1); the mean central subfield thickness reduction was - 148.0 µm versus - 145.9 µm. Overall, 17.1% of the patients required rescue PDT. At week 96, 25.0% (IVT-AFL) and 37.9% (IVT-AFL + rPDT) of the patients had complete polyp regression; 84.1% (IVT-AFL) and 88.4% (IVT-AFL + rPDT) of the patients had no evidence of active polyps. The mean number of injections (weeks 52-96) were 4.6 (IVT-AFL) and 4.5 (IVT-AFL + rPDT). Overall, 36.0% (IVT-AFL) and 33.8% (IVT-AFL + rPDT) of the patients experienced ocular treatment-emergent adverse events. CONCLUSION IVT-AFL monotherapy was efficacious for the treatment of Japanese patients with PCV, and the addition of rescue PDT did not show additional benefits.
Collapse
Affiliation(s)
- Yuichiro Ogura
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, 467-8601, Japan.
| | - Tomohiro Iida
- Department of Ophthalmology, Tokyo Women's Medical University, Tokyo, Japan
| | | | - Chui Ming Gemmy Cheung
- Singapore National Eye Centre and Singapore Eye Research Institute, Singapore, Singapore.,Duke-NUS, National University of Singapore, Singapore, Singapore
| | - Paul Mitchell
- University of Sydney, Westmead Institute for Medical Research, Sydney, Australia
| | | | | | | |
Collapse
|
5
|
Chen R, Wu B. Cost-effectiveness of intravitreal conbercept versus other treatments for wet age-related macular degeneration. ANNALS OF TRANSLATIONAL MEDICINE 2020; 8:939. [PMID: 32953739 PMCID: PMC7475432 DOI: 10.21037/atm-20-1334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background The potential benefits of conbercept, aflibercept, and ranibizumab has been reported in patients with wet age-related macular degeneration (wAMD). However, their economic outcomes are still unclear. The current study would assess the cost-effectiveness of conbercept, aflibercept and ranibizumab for patients with wAMD in a Chinese healthcare setting. Methods A Markov model was constructed based on patient visual acuity. Five regimens were considered: usual care without active anti-vascular endothelial growth factor (VEGF) treatment, IVT-AFL (intravitreal aflibercept on a two-monthly basis following three initial monthly doses), RBZ q4 (ranibizumab monthly dosing), RBZ RPN (ranibizumab dose as needed) and IVT-CON (intravitreal conbercept on a three-monthly basis after three initial monthly doses). Clinical, cost, and utility data were collected from published literature. Results In comparison with usual care, the IVT-AFL, RBZ q4, RBZ PRN, and IVT-CON strategies provided an additional 0.235, 0.338, 0.228, and 0.324 quality-adjusted life years (QALYs), respectively. They had marginal costs of $6,800, $10,084, $4,640, and $6,173, respectively. The strategies also produced incremental cost-effectiveness ratios (ICERs) of $28,892, $29,857, $20,338 and $19,028/QALY, respectively. One-way sensitivity analysis showed utility of blindness (best-corrected visual acuity <35) to have the greatest sensitivity of all the parameters. Probabilistic sensitivity analysis (PSA) indicated that IVT-CON yielded the greatest probabilities of cost-effectiveness (about 92%) compared with other strategies. Conclusions Conbercept is a cost-effective option for the treatment of wAMD in a Chinese healthcare setting.
Collapse
Affiliation(s)
- Rui Chen
- Department of Ophthalmology, The Second People's Hospital of Foshan, Foshan, China
| | - Bin Wu
- Medical Decision and Economic Group, Department of Pharmacy, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, China
| |
Collapse
|
6
|
Wong TY, Ogura Y, Lee WK, Iida T, Chen SJ, Mitchell P, Gemmy Cheung CM, Zhang Z, Leal S, Ishibashi T. Efficacy and Safety of Intravitreal Aflibercept for Polypoidal Choroidal Vasculopathy: Two-Year Results of the Aflibercept in Polypoidal Choroidal Vasculopathy Study. Am J Ophthalmol 2019; 204:80-89. [PMID: 30849345 DOI: 10.1016/j.ajo.2019.02.027] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 01/03/2023]
Abstract
PURPOSE We sought to evaluate longer-term efficacy and safety of intravitreal aflibercept monotherapy (IAI) vs IAI plus rescue photodynamic therapy (rPDT) in patients with polypoidal choroidal vasculopathy (PCV). DESIGN This was a prospective multicenter, double-masked, sham-controlled randomized clinical study across 62 centers. METHODS In this phase 3b/4 study, patients with PCV with best-corrected visual acuity of 73-24 Early Treatment Diabetic Retinopathy Study letters (20/40-20/320 Snellen equivalent) received IAI 2 mg every 4 weeks until week 12, when they were randomized 1:1 to receive IAI or IAI plus rPDT if rescue criteria were met. Patients not requiring rescue received IAI every 8 weeks; those requiring rescue received IAI every 4 weeks plus sham/active PDT. At week 52 (the primary endpoint), IAI was noninferior to IAI plus rPDT. After week 52, treatment intervals could be extended beyond 8 weeks at the investigators' discretion. Noninferiority of IAI vs IAI plus rPDT for mean best-corrected visual acuity change from baseline to week 96 was evaluated. RESULTS Over 96 weeks, 54 patients (17.0%) met rescue criteria. At week 96, IAI was noninferior to IAI plus rPDT in terms of Early Treatment Diabetic Retinopathy Study letters gained (+10.7 vs +9.1, P = .48). Proportions of patients with complete polyp regression (33.1% vs 29.1%) or without active polyps (82.1% vs 85.6%) were similar. In year 2, the mean number of injections was 4.6 in both arms. No new safety signals were observed. CONCLUSION IAI monotherapy was noninferior to IAI with rescue PDT up to 96 weeks, and functional and anatomical improvements achieved at 52 weeks were maintained. Few patients required rescue PDT, which provided no additional visual benefit.
Collapse
Affiliation(s)
- Tien Yin Wong
- Singapore Eye Research Institute and Singapore National Eye Centre, Singapore; Duke-National University of Singapore Medical School, National University of Singapore, Singapore.
| | - Yuichiro Ogura
- Department of Ophthalmology and Visual Science, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Won Ki Lee
- Department of Ophthalmology, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Tomohiro Iida
- Department of Ophthalmology, Tokyo Women's Medical University, Tokyo, Japan
| | - Shih-Jen Chen
- Department of Ophthalmology, Taipei Veterans General Hospital and School of Medicine, National Yang-Ming University Taipei, Taiwan
| | - Paul Mitchell
- University of Sydney, Sydney, New South Wales, Australia (Westmead Institute for Medical Research)
| | - Chui Ming Gemmy Cheung
- Singapore Eye Research Institute and Singapore National Eye Centre, Singapore; Duke-National University of Singapore Medical School, National University of Singapore, Singapore
| | | | | | - Tatsuro Ishibashi
- Department of Ophthalmology, Kyushu University Hospital, Fukuoka, Japan
| |
Collapse
|
7
|
Jung BJ, Kim JY, Lee JH, Baek J, Lee K, Lee WK. Intravitreal aflibercept and ranibizumab for pachychoroid neovasculopathy. Sci Rep 2019; 9:2055. [PMID: 30765771 PMCID: PMC6376123 DOI: 10.1038/s41598-019-38504-y] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 12/21/2018] [Indexed: 01/21/2023] Open
Abstract
This retrospective study was to compare the efficacy of intravitreal injection of ranibizumab and aflibercept for patients with pachychoroid neovasculopathy. 54 eyes were initially treated with 3 monthly loading injections of ranibizumab or aflibercept. Treatment switching from ranibizumab to aflibercept, and aflibercept to photodynamic therapy was done at 3 months in case of incomplete fluid absorption. At 3 months, the rate of complete fluid absorption was significantly higher in the aflibercept-treated group than in the ranibizumab-treated group (82.6% vs 51.6%, p = 0.018). The mean reduction of subfoveal choroidal thickness was significantly greater in the aflibercept group than in the ranibizumab group (−35 µm vs −9 µm, p = 0.013). There was no significant difference between the two groups in terms of visual improvement or decrease in central macular thickness. Complete fluid absorption was achieved after switching from ranibizumab to aflibercept in 13 of 15 eyes (86.7%). Adjunctive photodynamic therapy was required in 6 eyes. In conclusion, treatment mainly with anti-vascular endothelial growth factor effectively improved visual acuity within 12 months (from 20/56 to 20/44 at 3 months and to 20/36 at 12 months). Aflibercept was superior to ranibizumab in achieving dry macula and reducing choroidal thickness at 3 months.
Collapse
Affiliation(s)
- Byung Ju Jung
- Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, Korea
| | - Joo Young Kim
- Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, Korea
| | - Jae Hyung Lee
- Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, Korea.
| | - Jiwon Baek
- Department of Ophthalmology and Visual Science, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kook Lee
- Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, Korea
| | - Won Ki Lee
- Department of Ophthalmology and Visual Science, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong, Seocho-ku, Seoul, 137-701, Korea
| |
Collapse
|
8
|
Homme RP, Singh M, Majumder A, George AK, Nair K, Sandhu HS, Tyagi N, Lominadze D, Tyagi SC. Remodeling of Retinal Architecture in Diabetic Retinopathy: Disruption of Ocular Physiology and Visual Functions by Inflammatory Gene Products and Pyroptosis. Front Physiol 2018; 9:1268. [PMID: 30233418 PMCID: PMC6134046 DOI: 10.3389/fphys.2018.01268] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 08/21/2018] [Indexed: 02/06/2023] Open
Abstract
Diabetic patients suffer from a host of physiological abnormalities beyond just those of glucose metabolism. These abnormalities often lead to systemic inflammation via modulation of several inflammation-related genes, their respective gene products, homocysteine metabolism, and pyroptosis. The very nature of this homeostatic disruption re-sets the overall physiology of diabetics via upregulation of immune responses, enhanced retinal neovascularization, upregulation of epigenetic events, and disturbances in cells' redox regulatory system. This altered pathophysiological milieu can lead to the development of diabetic retinopathy (DR), a debilitating vision-threatening eye condition with microvascular complications. DR is the most prevalent cause of irreversible blindness in the working-age adults throughout the world as it can lead to severe structural and functional remodeling of the retina, decreasing vision and thus diminishing the quality of life. In this manuscript, we attempt to summarize recent developments and new insights to explore the very nature of this intertwined crosstalk between components of the immune system and their metabolic orchestrations to elucidate the pathophysiology of DR. Understanding the multifaceted nature of the cellular and molecular factors that are involved in DR could reveal new targets for effective diagnostics, therapeutics, prognostics, preventive tools, and finally strategies to combat the development and progression of DR in susceptible subjects.
Collapse
Affiliation(s)
- Rubens P. Homme
- Eye and Vision Science Laboratory, Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Mahavir Singh
- Eye and Vision Science Laboratory, Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Avisek Majumder
- Eye and Vision Science Laboratory, Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
- Department of Biochemistry and Molecular Genetics, University of Louisville School of Medicine, Louisville, KY, United States
| | - Akash K. George
- Eye and Vision Science Laboratory, Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Kavya Nair
- Eye and Vision Science Laboratory, Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Harpal S. Sandhu
- Department of Ophthalmology and Visual Sciences, University of Louisville School of Medicine, Louisville, KY, United States
- Kentucky Lions Eye Center, University of Louisville School of Medicine, Louisville, KY, United States
| | - Neetu Tyagi
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - David Lominadze
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| | - Suresh C Tyagi
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States
| |
Collapse
|