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Hsu AY, Shao YC, Lin CJ, Chen HS, Lin CL, Cho DY, Tsai YY. Evaluating the risk of new-onset glaucoma in chronic kidney disease patients: a nationwide cohort study. BMC Nephrol 2024; 25:263. [PMID: 39143548 PMCID: PMC11325696 DOI: 10.1186/s12882-024-03698-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 08/07/2024] [Indexed: 08/16/2024] Open
Abstract
BACKGROUND A better understanding of the association between chronic kidney disease (CKD) and glaucoma is required to optimize clinical outcomes. Therefore, this study aimed to investigate the association of chronic kidney disease (CKD) with new diagnoses of glaucoma over time from January 2009 to December 2019. METHOD This retrospective propensity-matched cohort study utilizing Taiwanese electronic health records examined the incidence of newly diagnosed glaucoma in patients with and without chronic kidney disease (CKD). The exposure variable was the diagnosis of CKD, identified through diagnostic codes. The primary outcome was the incidence of new-onset glaucoma. Subgroup analyses on glaucoma risk included age, gender, comorbidities, glaucoma subtypes, and dialysis status. Statistical analyses included Kaplan-Meier analysis, Cox proportional hazards models, and Poisson regression models, with the associated hazard ratios and confidence intervals reported. RESULTS Seven hundred twenty-three thousand two hundred sixteen patients with CKD (42.3% female; mean [SD] age at index, 66.3 [15.6] years) and 723,216 patients without CKD (42.3% female; mean [SD] age at index, 66.3 [15.7]) were recruited. We showed a significantly increased risk of glaucoma irrespective of subtypes in CKD patients compared to those without CKD (HR: 1.29 [CI: 1.26-1.32], p < 0.001). Kaplan-Meier curves revealed a significantly increased glaucoma risk in both the dialytic subtype and non-dialytic CKD patients when compared to their non-CKD counterparts (p < 0.001). We also showed that all genders (aHR 1.17 [CI: 1.13-1.21] for females vs. aHR 1.39 [CI:1.35-1.43] for males), all ages (< = 49: aHR 1.49 [CI: 1.37-1.62]; 50-59: aHR 1.48 [CI: 1.40-1.56]; 60-69: aHR 1.30 [CI: 1.25-1.6]; 70-79: aHR 1.21 [CI: 1.17-1.26]; > 80: aHR 1.29 [CI: 1.21-1.37]); all income brackets and all urbanization status were associated with significantly increased risk of glaucoma from among the CKD cohort when compared to their respective non-CKD cohort (p < 0.001). CONCLUSIONS Our cohort study spanning 12 years showed an elevated glaucoma risk following a CKD diagnosis compared to a frequency-matched non-CKD cohort. Our findings have relevance for the clinical practice of at-risk CKD patients. TRIAL REGISTRATION Due to the retrospective nature of the study, no registration was necessary.
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Affiliation(s)
- Alan Y Hsu
- Department of Ophthalmology, China Medical University Hospital, China Medical University, No. 29, Yude Rd., North Dist., Taichung, 40447, Taiwan
| | - Yi-Ching Shao
- Department of Ophthalmology, China Medical University Hospital, China Medical University, No. 29, Yude Rd., North Dist., Taichung, 40447, Taiwan.
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
| | - Chun-Ju Lin
- Department of Ophthalmology, China Medical University Hospital, China Medical University, No. 29, Yude Rd., North Dist., Taichung, 40447, Taiwan.
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan.
- Department of Optometry, Asia University, Taichung, Taiwan.
| | - Huan-Sheng Chen
- An-Shin Dialysis Center, Excelsior Renal Service Co., Ltd., Taiwan Branch, Taichung, Taiwan
| | - Cheng-Li Lin
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Der-Yang Cho
- Translational Cell Therapy Center, Department of Medical Research, China Medical University Hospital, Taichung, 40447, Taiwan
- Department of Neurosurgery, China Medical University Hospital, Taichung, 40447, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, 40447, Taiwan
| | - Yi-Yu Tsai
- Department of Ophthalmology, China Medical University Hospital, China Medical University, No. 29, Yude Rd., North Dist., Taichung, 40447, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
- Department of Optometry, Asia University, Taichung, Taiwan
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Trung NL, Toan PQ, Trung NK, Tuan VA, Huyen NT. Eye Lesions in Patients After One Year of Kidney Transplantation. Clin Ophthalmol 2023; 17:2861-2869. [PMID: 37799147 PMCID: PMC10547587 DOI: 10.2147/opth.s424883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Accepted: 09/18/2023] [Indexed: 10/07/2023] Open
Abstract
Purpose Determine the incidence of some eye lesions in kidney transplant patients after one year at Military Hospital 103 and comment on related factors. Patients and Methods A cross-sectional study description of 111 kidney transplant patients (222 eyes) at Military Hospital 103. We assessed several eye lesions, including dry eyes, corneal conjunctival calcification, cataracts, and retinopathy. Results The rate of retinopathy was 84.7%, dry eye was 59.5%, cataract was 29.7%, and corneal conjunctival calcification was 24.8%, atrophy optic nerve was 9.9%, epiretinal membrane was 1.8%. Post-transplant influence factors associated with cataracts include the dose of prednisolone (OR= 1.6, p < 0.05) and post-transplant diabetes (OR=1.4, p < 0.05). The influence factor related to the atrophy of the optic nerve is systemic infection after transplantation (OR=2.4, p < 0.05). Conclusion Retinopathy accounted for the highest rate, followed by dry eye disease; cataracts ranked third; and finally, calcified corneal conjunctiva. Factors that affect cataracts are diabetes mellitus and prednisolone dose. Factors affecting optic nerve atrophy are infections after kidney transplantation.
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Affiliation(s)
- Nguyen Le Trung
- Vietnam Department of Ophthalmology, Hanoi Medical University, Hanoi, Vietnam
- Vietnam Department of Ophthalmology, Military Hospital 103, Hanoi, Vietnam
| | - Pham Quoc Toan
- Vietnam Department of Nephrology, Military Hospital 103, Hanoi, Vietnam
| | | | - Vu Anh Tuan
- Vietnam Department of Ophthalmology, Hanoi Medical University, Hanoi, Vietnam
| | - Nguyen Thu Huyen
- Vietnam Department of Ophthalmology, National Military Hospital 108, Hanoi, Vietnam
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Wang Y, Dong XX, Hou XW, Pan CW. Risk Factors for Primary Angle-closure Glaucoma: A Systematic Review and Meta-analysis of 45 Studies. Optom Vis Sci 2023; 100:606-613. [PMID: 37747945 DOI: 10.1097/opx.0000000000002050] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/27/2023] Open
Abstract
SIGNIFICANCE This study summarized primary angle-closure glaucoma (PACG)-related factors across different dimensions. OBJECTIVES This review aimed at systematically summarizing the associated factors of PACG in published literatures. METHODS A systematic review and meta-analysis were conducted by searching the electronic databases including PubMed, EMBASE, and Web of Science from their inception to November 2021. The pooled risk estimates of continuous and categorical variables were calculated using weighted mean difference (WMD) and odds ratio (OR; 95% confidence intervals [CIs]), respectively. RESULTS We included 45 studies in this review. In the meta-analysis, intraocular pressure (WMD, 3.13; 95% CI, 2.37 to 3.89), anterior chamber depth (WMD, -0.52; 95% CI, -0.70 to -0.34), axial length (WMD, -0.77; 95% CI, -1.26 to -0.28), retinal nerve fiber layer (WMD, -21.23; 95% CI, -30.21 to -12.25), and spherical equivalent (WMD, 1.02; 95% CI, 0.66 to 1.38) were the most common ophthalmic anatomic factors, and lower body weight (WMD, -3.65; 95% CI, -6.48 to -0.82) was the most significant general morphological indicators. The presence of cataract (OR, 3.77; 95% CI, 3.46 to 4.11) and hyperlipidemia (OR, 1.10; 95% CI, 1.02 to 1.20) were significantly associated with PACG. Increased level of triglyceride (WMD, 0.17; 95% CI, 0.06 to 0.27) was associated with PACG. In addition, an association between short-term antidepressant exposure (OR, 1.36; 95% CI, 1.08 to 1.70) and acute angle-closure glaucoma was observed. CONCLUSIONS AND IMPLICATIONS OF KEY FINDINGS This review identified a few consistent factors related to PACG, providing important information for primary care physicians, general ophthalmologists, and public health professionals to counsel their patients on PACG risks.
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Affiliation(s)
- Ying Wang
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xing-Xuan Dong
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
| | - Xiao-Wen Hou
- School of Public Health, Suzhou Medical College of Soochow University, Suzhou, China
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Wang YC, Ling XC, Tsai WH, Liu JS, Kuo KL. Risks of Topical Carbonic Anhydrase Inhibitors in Glaucoma Patients With Chronic Kidney Disease: A Nationwide Population-Based Study. Am J Ophthalmol 2023; 253:49-55. [PMID: 37149244 DOI: 10.1016/j.ajo.2023.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 04/27/2023] [Accepted: 05/01/2023] [Indexed: 05/08/2023]
Abstract
PURPOSE To investigate the risks of metabolic acidosis and renal outcomes after topical carbonic anhydrase inhibitor (CAI) use in patients with both primary open-angle glaucoma (POAG) and advanced chronic kidney disease (CKD). DESIGN Nationwide, population-based cohort study. METHODS This study was conducted with population data from Taiwan's National Health Insurance (NHI) Research Database between January 2000 and June 2009. Patients with advanced CKD who were diagnosed with glaucoma (International Classification of Diseases, Ninth Revision [ICD-9] code 365) and had been receiving eye drops for glaucoma (including carbonic anhydrase inhibitors selected by NHI drug code) were enrolled. Using Kaplan-Meier methods, we compared the cumulative incidence of mortality, long-term dialysis, and cumulative incidence of metabolic acidosis over time between CAI users and CAI non-users. Primary outcomes comprised mortality, renal outcome (progression to hemodialysis), and metabolic acidosis. RESULTS In this cohort, topical CAI users had a higher incidence of long-term dialysis than non-users (incidence = 1,216.85 vs 764.17 events per 100 patient-years; adjusted hazard ratio = 1.17, 95% CI = 1.01-1.37). Hospital admissions due to metabolic acidosis were higher in CAI users compared with non-users (incidence = 21.54 vs 11.87 events per 100 patient-years; adjusted hazard ratio = 1.89, 95% CI = 1.07-3.36). CONCLUSIONS Topical CAIs may be associated with higher risks of long-term dialysis and metabolic acidosis in patients with POAG and pre-dialysis advanced CKD. Therefore, topical CAIs should be used with caution in advanced CKD patients.
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Affiliation(s)
- Yi-Chun Wang
- From the Division of Nephrology (Y.-C.W., K.-L.K.), Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan; School of Medicine (Y.-C.W., W.-H.T., K.-L.K.), Buddhist Tzu Chi University, Hualien, Taiwan
| | - Xiao Chun Ling
- Department of Ophthalmology (X.C.L.), Chang Gung Memorial Hospital, Linkou, Taoyuan, Taiwan
| | - Wen-Hsin Tsai
- School of Medicine (Y.-C.W., W.-H.T., K.-L.K.), Buddhist Tzu Chi University, Hualien, Taiwan; Department of Pediatrics (W.-H.T.), Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation
| | - Jia-Sin Liu
- Department of Public Health (J.-S.L.), Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ko-Lin Kuo
- From the Division of Nephrology (Y.-C.W., K.-L.K.), Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei, Taiwan; School of Medicine (Y.-C.W., W.-H.T., K.-L.K.), Buddhist Tzu Chi University, Hualien, Taiwan; School of Post-Baccalaureate Chinese Medicine (K.-L.K.), Tzu Chi University, Hualien, Taiwan.
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Association of glaucoma and lifestyle with incident cardiovascular disease: a longitudinal prospective study from UK Biobank. Sci Rep 2023; 13:2712. [PMID: 36792671 PMCID: PMC9931750 DOI: 10.1038/s41598-023-29613-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
The shared pathophysiological features of the cerebrovascular disease (CVD) and glaucoma suggest an association between the two diseases. Using the prospective UK Biobank cohort, we examined the associations between glaucoma and incident CVD and assessed the extent to which a healthy lifestyle reduced the CVD risk in subjects with glaucoma, using a scoring system consisting of four factors: current smoking, obesity, regular physical activity, and a healthy diet. During a mean follow-up time of 8.9 years, 22,649 (4.9%) incident CVD cases were documented. Multivariable Cox regression analyses revealed that subjects with glaucoma were significantly more likely to exhibit incident CVD (hazard ratio [HR]:1.19, 95% confidence interval [CI] 1.03-1.37; p = 0.016) than controls. In the further subgroup analyses, glaucoma increased incident CVD risk both in the young (40-55 years) and the old (56-70 years) and in both sexes, with higher risk in the young (HR: 1.33, CI 1.02-1.74) and female subjects (HR: 1.32, CI 1.14-1.52). When we analyze the associations between glaucoma and incident CVD by lifestyle factors, the highest absolute risks were observed in individuals with both glaucoma and an unhealthy lifestyle (HR: 2.66, CI 2.22-3.19). In conclusion, glaucoma was an independent risk factor for incident CVD. A healthy lifestyle was associated with a substantially lower risk for CVD incidence among adults with glaucoma.
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Yeung L, Wu IW, Liu CF, Lin YT, Lee CC, Sun CC. Accelerated Peripapillary Retinal Nerve Fiber Layer Degeneration in Patients With Chronic Kidney Disease: A 2-Year Longitudinal Study. Transl Vis Sci Technol 2022; 11:10. [PMID: 36515965 DOI: 10.1167/tvst.11.12.10] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose To evaluate the longitudinal changes in the peripapillary retinal nerve fiber layer (pRNFL) in patients with chronic kidney disease (CKD). Methods In this prospective cohort study, the CKD group consisted of patients with CKD stage ≥ 3. Age-matched healthy controls were enrolled at a 1:4 ratio. Spectral-domain optical coherence tomography was used to measure the pRNFL at baseline, 1 year, and 2 years. Within-group longitudinal changes and between-group comparisons were performed using linear mixed models. Results Overall, 152 patients with CKD and 40 controls were included (mean ages, 62.8 ± 9.1 years vs. 63.0 ± 9.3 years; P = 0.931). The CKD group showed faster loss of pRNFL than the control group (-0.87 µm/y vs. -0.26 µm/y; P = 0.004). Subgroup analysis found that the rate of pRNFL change was -0.41 µm/y in stage 3a CKD, -0.74 µm/y in stage 3b, -0.98 µm/y in stage 4/5, and -1.38 µm/y in end-stage renal disease. Multiple linear regression analysis revealed that CKD stage (coefficient = -0.549; 95% confidence interval [CI], -0.966 to -0.131; P = 0.010), hypertension (coefficient = -1.557; 95% CI -3.013 to -0.101; P = 0.036), and rim area (coefficient = -1.505; 95% CI, -2.940 to -0.070; P = 0.040) were factors associated with the pRNFL change over 2 years. Conclusions Patients with CKD experienced faster pRNFL loss than healthy controls did. Severity of CKD, hypertension, and rim area were independent factors associated with the loss of pRNFL. Translational Relevance This study contributes to our understanding of retinal neurodegeneration in normal aging and in patients with chronic kidney diseases.
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Affiliation(s)
- Ling Yeung
- Department of Ophthalmology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Retina Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - I-Wen Wu
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Nephrology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,Community Medicine Research Center, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chun-Fu Liu
- Department of Ophthalmology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Program in Molecular Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yu-Tze Lin
- Department of Ophthalmology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chin-Chan Lee
- College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Nephrology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - Chi-Chin Sun
- Department of Ophthalmology, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Chinese Medicine, Chang Gung University, Taoyuan, Taiwan
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Ng FYC, Song HJJMD, Tan BKJ, Teo CB, Wong ETY, Boey PY, Cheng CY. Bidirectional association between glaucoma and chronic kidney disease: A systematic review and meta-analysis. EClinicalMedicine 2022; 49:101498. [PMID: 35747173 PMCID: PMC9189872 DOI: 10.1016/j.eclinm.2022.101498] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/18/2022] [Accepted: 05/23/2022] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Glaucoma and chronic kidney disease (CKD) are prevalent and debilitating conditions, with common pathogenic pathways like oxidative stress and fluid dysregulation. We evaluated if there is a bidirectional association between them, as previous studies have yielded conflicting results. METHODS In this systematic review and meta-analysis, we searched PubMed, Embase and Cochrane Library from inception until 15 June 2021, including full-length English articles published in peer-reviewed journals reporting on glaucoma and CKD as either exposure or outcome, among participants aged ≥18 years. We pooled overall summary estimates of odds ratios using random-effect meta-analysis and conducted subgroup meta-analyses and univariate meta regression. We assessed risk of bias using the Newcastle-Ottawa Scale (NOS) and quality of evidence using the GRADE framework. Our article is PROSPERO-registered and adherent to both PRISMA and MOOSE guidelines. This review is registered with PROSPERO (CRD42021262846). FINDINGS We identified 14 articles comprising of 3 retrospective cohort studies and 12 cross-sectional studies from 2,428 records, including 1,978,254 participants. Risk of bias was low to moderate. Participants with CKD at baseline had higher pooled odds of glaucoma (odds ratio[OR]=1.18, 95% confidence interval[CI]=1.04-1.33, I2=66%, N=12) compared to participants without CKD. The association remained significant in subgroups of longitudinal studies, participants with diabetes, East Asian studies and primary open-angle glaucoma. In the reverse direction, participants with glaucoma at baseline had over three-fold higher odds of incident CKD compared to participants without glaucoma after 10-15 years of follow-up in longitudinal studies (OR=3.67, 95% CI=2.16-6.24, I2=75%, N=2). All studies adjusted for age and sex, while most studies adjusted for comorbidities such as diabetes and hypertension. Meta-regression identified ethnicity (East Asians vs Non-East Asians) as a significant effect moderator. Associations were robust to trim-and-fill adjustment for publication bias, single-study influence and cumulative meta-analyses. INTERPRETATION Our meta-analysis suggests a bidirectional relationship between glaucoma and CKD, particularly among East Asians. Further studies are required to elucidate underlying mechanisms and account for differential association by ethnicity. FUNDING Ching-Yu Cheng is supported by Clinician Scientist Award (NMRC/CSA-SI/0012/2017) of the Singapore Ministry of Health's National Medical Research Council.
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Affiliation(s)
- Faye Yu Ci Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | | | | | - Chong Boon Teo
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Emmett Tsz Yeung Wong
- Division of Nephrology, Department of Medicine, National University Hospital, Singapore
| | - Pui Yi Boey
- Glaucoma Service, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Ching-Yu Cheng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Glaucoma Service, Singapore National Eye Centre, Singapore
- Ocular Epidemiology Research Group, Singapore Eye Research Institute, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Corresponding author at: Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, 20 College Road, The Academia, Level 6, Singapore.
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Zhou J, Chen F, Yan A, Jiang J, Xia X. Hyperglycemia induces retinal ganglion cell endoplasmic reticulum stress to the involvement of glaucoma in diabetic mice. Transpl Immunol 2022; 73:101636. [PMID: 35659921 DOI: 10.1016/j.trim.2022.101636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/25/2022] [Accepted: 05/26/2022] [Indexed: 11/30/2022]
Abstract
Glaucoma is a neurodegenerative disease leading to visual loss. Since glaucoma is associated with chronic renal diseases (RDs) their rate is higher in patients with RDs, and end-stage RDs (ESRDs) than in the general population and kidney transplant recipients. OBJECTIVE To explore the molecular mechanism of diabetic internal environment in regulating the endoplasmic reticulum stress of the retinal ganglion cells (RGCs). METHODS Thirty-six SPF grade type 2 diabetes models were divided into 3 groups: Diabetes mellitus (DM), DM + glaucoma and 4-phenylbutyric acid-DM (4-PBA-DM) + glaucoma group. C57BL6 mice of the same week age were taken as the negative control (NC) group. The morphology of RGCs and their axon in the 4 groups were labeled by fluorescent reactive dye Dil. The apoptosis situation of RGCs was determined by terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL) assay. The protein expression values of RTN4IP1, Protein kinase R-like endoplasmic reticulum kinase (PERK), eukaryotic initiation factor 2A (eIF2a) and X-box-binding Protein 1 (XBP1) were determined by western blot. The relative mRNA levels of cyclophosphamide, doxorubicin, vincristine and prednisone (CHOP), Caspase12 and Bax were determined by quantitative real-time polymerase chain reaction (qRT-PCR). RESULTS Glaucoma promotes the apoptosis of RGCs. The protein expression values of RTN4IP1, PERK and XBP1 in DM mouse models with glaucoma were much higher compared to only DM mouse models. Further injection of endoplasmic reticulum stress inhibitor 4-PBA decreased the expression values. The relative mRNA levels of CHOP, Cysteine aspartic acid specific protease12 (Caspase12) and BCL2-associated X protein (Bax) in DM + glaucoma were significantly higher compared to those in DM group. Further injection of endoplasmic reticulum stress inhibitor 4-PBA decreased the mRNA levels. CONCLUSION Endoplasmic reticulum stress (ERS) is the underlying cause of glaucoma, which could promote the apoptosis of RGCs in diabetic mice.
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Affiliation(s)
- Jinzi Zhou
- Department of Ophthalmology, The First People's Hospital of Guiyang, Guiyang, Guizhou 550002, PR China.
| | - Fenghua Chen
- Department of Ophthalmology, The First People's Hospital of Guiyang, Guiyang, Guizhou 550002, PR China
| | - Aimin Yan
- Department of Ophthalmology, The First People's Hospital of Guiyang, Guiyang, Guizhou 550002, PR China
| | - Jian Jiang
- Department of Ophthalmology, Xiangya Hospital Central South University, Changsha, Hunan 410008, PR China
| | - Xiaobo Xia
- Department of Ophthalmology, Xiangya Hospital Central South University, Changsha, Hunan 410008, PR China
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