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Estevez JJ, Liu E, Patel C, Roulston T, Howard NJ, Lake S, Henderson T, Gleadle J, Maple-Brown LJ, Brown A, Craig JE. Vision loss and diabetic retinopathy prevalence and risk among a cohort of Indigenous and non-Indigenous Australians with type 2 diabetes receiving renal haemodialysis treatment: The retinopathy in people currently on renal dialysis (RiPCORD) study. Prim Care Diabetes 2024; 18:547-554. [PMID: 39232978 DOI: 10.1016/j.pcd.2024.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 08/14/2024] [Accepted: 08/20/2024] [Indexed: 09/06/2024]
Abstract
AIMS Diabetic nephropathy, vision loss and diabetic retinopathy (DR) are frequent comorbidities among individuals with type 2 diabetes (T2D). The Retinopathy in People Currently On Renal Dialysis (RiPCORD) study sought to examine the epidemiology and risk of vision impairment (VI) and DR among a cohort of Indigenous and non-Indigenous Australians with T2D currently receiving haemodialysis for end-stage renal failure (ESRF). METHODS A total of 106 Indigenous and 109 non-Indigenous Australians were recruited in RiPCORD across five haemodialysis centres in urban and remote settings. Clinical assessments, questionnaires and medical record data determined the rates of ocular complications and risk factor profiles. RESULTS Prevalence rates include unilateral VI, 23.5 %; bilateral VI, 11.7 %; unilateral blindness, 14.2 %; and bilateral blindness, 3.7 %, with no significant differences between sub-cohorts (p=0.30). DR prevalence rates were 78.0 % among non-Indigenous Australians and 93.1 % among Indigenous Australians (p=<0.001). Non-Indigenous ethnicity (OR: 0.28) and pre-dialysis diastolic blood pressure (OR: 0.84 per 10-mmHg) were protective, while peripheral vascular disease (OR: 2.79) increased DR risk. CONCLUSIONS Ocular complications among individuals with T2D and ESRF are disproportionately high, especially for Indigenous Australians, and beyond what can be accounted for by risk factor variation. Findings suggest a need to improve screening and preventative efforts within this high-risk population group.
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Affiliation(s)
- Jose J Estevez
- Caring Futures Institute, College of Nursing and Health Sciences, Optometry and Vision Science, Flinders University, Adelaide, Australia; Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia; Wardliparingga Aboriginal Health Equity Theme, South Australia Health and Medical Research Institute, Adelaide, Australia.
| | - Ebony Liu
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia
| | - Chirag Patel
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia
| | - Tania Roulston
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia; Alice Springs Hospital, Ophthalmology Department, Alice Springs, Northern Territory, Australia
| | - Natasha J Howard
- Wardliparingga Aboriginal Health Equity Theme, South Australia Health and Medical Research Institute, Adelaide, Australia; Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
| | - Stewart Lake
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia
| | - Tim Henderson
- Alice Springs Hospital, Ophthalmology Department, Alice Springs, Northern Territory, Australia
| | - Jonathan Gleadle
- Department of Renal Medicine, Flinders Medical Centre, College of Medicine and Public Health, Flinders University, Adelaide, Australia
| | - Louise J Maple-Brown
- Menzies School of Health Research, Charles Darwin University, Darwin, Northern Territory, Australia; Department of Endocrinology, Royal Darwin and Palmerston Hospitals, Darwin, Northern Territory, Australia
| | - Alex Brown
- Indigenous Genomics, Telethon Kids Institute, Adelaide, South Australia, Australia; National Centre for Indigenous Genomics, The John Curtin School of Medical Research, Australian National University, Australian Capital Territory, Australia
| | - Jamie E Craig
- Flinders Centre for Ophthalmology, Eye and Vision Research, Department of Ophthalmology, Flinders University, Adelaide, Australia
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Kanbay M, Guldan M, Ozbek L, Copur S, Mallamaci F, Zoccali C. Unveiling the intricacies of chronic kidney disease: From ocular manifestations to therapeutic frontiers. Eur J Clin Invest 2024:e14324. [PMID: 39327839 DOI: 10.1111/eci.14324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 09/15/2024] [Indexed: 09/28/2024]
Abstract
BACKGROUND Shared anatomical, histological and physiological pathways between the kidney and the eye are well documented, demonstrating that ocular manifestations serve as valuable prognostic indicators in chronic kidney disease (CKD), providing insights into disease severity and progression. Through non-invasive imaging modalities such as retinal fundus photography, early retinal microvascular alterations indicative of CKD progression can be detected, enabling timely intervention and risk stratification. However, the conclusions drawn from the review primarily demonstrate a strong or independent association between glaucoma or retinopathy and CKD. RESULTS AND CONCLUSION Multiple shared pathophysiological events have been implicated in the pathogenesis in the alterations at eye and kidney including renin-angiotensin-aldosterone system. Patients with CKD are more likely to experience glaucoma, age-related macular degeneration, cataracts, uremic optic neuropathy and retinopathy. To establish the role of ocular manifestations in predicting CKD progression, it is crucial to address the limitations of correlation and explore the underlying causality with further research on common disease pathogenesis. Additionally, specific methods for risk stratification based on retinal changes, the effectiveness of timely interventions, and the development of predictive tools combining ocular and renal data are of utmost importance research topics to enlighten the bidirectional causality.
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Affiliation(s)
- Mehmet Kanbay
- Division of Nephrology, Department of Internal Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Mustafa Guldan
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Lasin Ozbek
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Sidar Copur
- Division of Internal Medicine, Department of Internal Medicine, Koç University School of Medicine, Istanbul, Turkey
| | - Francesca Mallamaci
- Nephrology, Dialysis and Transplantation Unit, Grande Ospedale Metropolitano, Reggio Calabria, Italy
- CNR-IFC, Research Unit of Clinical Epidemiology and Physiopathology of Renal Diseases and Hypertension, Institute of Clinical Physiology, Reggio Calabria, Italy
| | - Carmine Zoccali
- Renal Research Institute, New York, New York, USA
- Institute of Molecular Biology and Genetics (Biogem), Ariano Irpino, Italy
- Associazione Ipertensione Nefrologia Trapianto Renale (IPNET), Grande Ospedale Metropolitano, Reggio Calabria, Italy
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Chew LA, Grigsby D, Hester CG, Amason J, McPherson WK, Flynn EJ, Visel M, Flannery JG, Rickman CB. Truncated Complement Factor H Y402 Gene Therapy Cures C3 Glomerulonephritis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.09.17.613471. [PMID: 39345485 PMCID: PMC11429740 DOI: 10.1101/2024.09.17.613471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 10/01/2024]
Abstract
Patients with both age-related macular degeneration (AMD) and C3 glomerulonephritis (C3G) are challenged by the absence of effective therapies to reverse and eliminate their disease burden. Capitalizing on complement dysregulation as both a significant risk factor for AMD and the known pathophysiology of C3G, we investigated the potential for adeno-associated virus (AAV) delivery of complement factor H (CFH) to rescue C3G in a Cfh-/- mouse model of C3G. While past efforts to treat C3G using exogenous human CFH resulted in limited success before immune rejection led to a foreign protein response, our findings demonstrate the capacity for long-term AAV-mediated delivery of truncated CFH (tCFH) to restore inhibition of the alternative pathway of complement and ultimately reverse C3G without immune rejection. Comparing results from the administration of several tCFH vectors also revealed significant differences in their relative efficiency and efficacy. These discoveries pave the way for subsequent development of AAV-mediated tCFH replacement therapy for patients with C3G, while simultaneously demonstrating proof of concept for a parallel AAV-mediated tCFH gene augmentation therapy for patients with AMD.
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Affiliation(s)
- Lindsey A. Chew
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710
| | - Daniel Grigsby
- Genetically Engineered Murine Model (GEMM) Core, University of Virginia, Charlottesville, VA, 22903
| | - C. Garren Hester
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
| | - Joshua Amason
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
| | - W. Kyle McPherson
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
| | - Edward J. Flynn
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
| | - Meike Visel
- Department of Molecular & Cell Biology, University of California Berkeley, Berkeley, CA, 94720
| | - John G. Flannery
- Department of Molecular & Cell Biology, University of California Berkeley, Berkeley, CA, 94720
| | - Catherine Bowes Rickman
- Department of Ophthalmology, Duke Eye Center, Duke University Medical Center, Durham, NC 27710
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710
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Yang S, Zhou C, Ye Z, Liu M, Zhang Y, Gan X, Huang Y, Xiang H, He P, Zhang Y, Qin X. Association Between Cognitive Function and Risk of Chronic Kidney Disease: A Longitudinal Cohort and Mendelian Randomization Study. Mayo Clin Proc 2024; 99:1399-1410. [PMID: 39115510 DOI: 10.1016/j.mayocp.2024.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 03/16/2024] [Accepted: 04/23/2024] [Indexed: 09/06/2024]
Abstract
OBJECTIVE To investigate the causal dose-response association between cognitive function and the risk of chronic kidney disease (CKD) by a longitudinal cohort and mendelian randomization study. METHODS The longitudinal cohort study included 396,600 participants without prior dementia and CKD from the UK Biobank. Cognitive function (including prospective memory, numeric memory, visuospatial memory, reaction time, and reasoning ability) was assessed by computerized touchscreen tests. Global cognitive function was defined as a composite score of those specific cognitive domains. A 2-stage mendelian randomization analysis was conducted with 12,979 cases of CKD and 379,424 controls. Genetically predicted global cognitive function was instrumented with 91 confirmed genome-wide significant variants. The study outcome was new-onset CKD. The study was conducted from March 13, 2006, to September 30, 2021. RESULTS During a median follow-up of 12.5 years, new-onset CKD developed in 13,090 participants. Per 1 SD score increments in reaction time (adjusted hazard ratio [HR], 0.97; 95% CI, 0.95 to 0.99), reasoning ability (adjusted HR, 0.91; 95% CI, 0.88 to 0.94), and global cognitive function (adjusted HR, 0.96; 95% CI, 0.95 to 0.98) were associated with a significantly lower risk of new-onset CKD. Compared with an incorrect answer in the prospective memory test, a correct answer was associated with a lower risk of new-onset CKD (adjusted HR, 0.82; 95% CI, 0.76 to 0.88). Mendelian randomization analyses found that per 1 SD score increments in genetically predicted global cognitive function resulted in a significantly (7%; 95% CI, 2% to 12%) lower risk of new-onset CKD. CONCLUSION A better cognitive function is causally associated with a lower risk of CKD in participants without prior dementia.
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Affiliation(s)
- Sisi Yang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Chun Zhou
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Ziliang Ye
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Mengyi Liu
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Yanjun Zhang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Xiaoqin Gan
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Yu Huang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Hao Xiang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Panpan He
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Yuanyuan Zhang
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China
| | - Xianhui Qin
- Division of Nephrology, Nanfang Hospital, Southern Medical University, National Clinical Research Center for Kidney Disease, State Key Laboratory of Organ Failure Research, Guangdong Provincial Institute of Nephrology, Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, China.
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Chua J, Tan B, Wong D, Garhöfer G, Liew XW, Popa-Cherecheanu A, Loong Chin CW, Milea D, Li-Hsian Chen C, Schmetterer L. Optical coherence tomography angiography of the retina and choroid in systemic diseases. Prog Retin Eye Res 2024; 103:101292. [PMID: 39218142 DOI: 10.1016/j.preteyeres.2024.101292] [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: 05/17/2024] [Revised: 08/27/2024] [Accepted: 08/28/2024] [Indexed: 09/04/2024]
Abstract
Optical coherence tomography angiography (OCTA) has transformed ocular vascular imaging, revealing microvascular changes linked to various systemic diseases. This review explores its applications in diabetes, hypertension, cardiovascular diseases, and neurodegenerative diseases. While OCTA provides a valuable window into the body's microvasculature, interpreting the findings can be complex. Additionally, challenges exist due to the relative non-specificity of its findings where changes observed in OCTA might not be unique to a specific disease, variations between OCTA machines, the lack of a standardized normative database for comparison, and potential image artifacts. Despite these limitations, OCTA holds immense potential for the future. The review highlights promising advancements like quantitative analysis of OCTA images, integration of artificial intelligence for faster and more accurate interpretation, and multi-modal imaging combining OCTA with other techniques for a more comprehensive characterization of the ocular vasculature. Furthermore, OCTA's potential future role in personalized medicine, enabling tailored treatment plans based on individual OCTA findings, community screening programs for early disease detection, and longitudinal studies tracking disease progression over time is also discussed. In conclusion, OCTA presents a significant opportunity to improve our understanding and management of systemic diseases. Addressing current limitations and pursuing these exciting future directions can solidify OCTA as an indispensable tool for diagnosis, monitoring disease progression, and potentially guiding treatment decisions across various systemic health conditions.
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Affiliation(s)
- Jacqueline Chua
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore
| | - Bingyao Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore
| | - Damon Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore; Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
| | - Gerhard Garhöfer
- Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria
| | - Xin Wei Liew
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Alina Popa-Cherecheanu
- Carol Davila University of Medicine and Pharmacy, Bucharest, Romania; Emergency University Hospital, Department of Ophthalmology, Bucharest, Romania
| | - Calvin Woon Loong Chin
- Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore
| | - Dan Milea
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Fondation Ophtalmologique Adolphe De Rothschild, Paris, France
| | - Christopher Li-Hsian Chen
- Memory Aging and Cognition Centre, Departments of Pharmacology and Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Leopold Schmetterer
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore; Academic Clinical Program, Duke-NUS Medical School, National University of Singapore, Singapore; SERI-NTU Advanced Ocular Engineering (STANCE), Singapore, Singapore; School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore; Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland; Department of Clinical Pharmacology, Medical University Vienna, Vienna, Austria; Fondation Ophtalmologique Adolphe De Rothschild, Paris, France; Center for Medical Physics and Biomedical Engineering, Medical University Vienna, Vienna, Austria.
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Amir Hamzah NA, Wan Zaki WMD, Wan Abdul Halim WH, Mustafar R, Saad AH. Evaluating the potential of retinal photography in chronic kidney disease detection: a review. PeerJ 2024; 12:e17786. [PMID: 39104365 PMCID: PMC11299532 DOI: 10.7717/peerj.17786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 06/30/2024] [Indexed: 08/07/2024] Open
Abstract
Background Chronic kidney disease (CKD) is a significant global health concern, emphasizing the necessity of early detection to facilitate prompt clinical intervention. Leveraging the unique ability of the retina to offer insights into systemic vascular health, it emerges as an interesting, non-invasive option for early CKD detection. Integrating this approach with existing invasive methods could provide a comprehensive understanding of patient health, enhancing diagnostic accuracy and treatment effectiveness. Objectives The purpose of this review is to critically assess the potential of retinal imaging to serve as a diagnostic tool for CKD detection based on retinal vascular changes. The review tracks the evolution from conventional manual evaluations to the latest state-of-the-art in deep learning. Survey Methodology A comprehensive examination of the literature was carried out, using targeted database searches and a three-step methodology for article evaluation: identification, screening, and inclusion based on Prisma guidelines. Priority was given to unique and new research concerning the detection of CKD with retinal imaging. A total of 70 publications from 457 that were initially discovered satisfied our inclusion criteria and were thus subjected to analysis. Out of the 70 studies included, 35 investigated the correlation between diabetic retinopathy and CKD, 23 centered on the detection of CKD via retinal imaging, and four attempted to automate the detection through the combination of artificial intelligence and retinal imaging. Results Significant retinal features such as arteriolar narrowing, venular widening, specific retinopathy markers (like microaneurysms, hemorrhages, and exudates), and changes in arteriovenous ratio (AVR) have shown strong correlations with CKD progression. We also found that the combination of deep learning with retinal imaging for CKD detection could provide a very promising pathway. Accordingly, leveraging retinal imaging through this technique is expected to enhance the precision and prognostic capacity of the CKD detection system, offering a non-invasive diagnostic alternative that could transform patient care practices. Conclusion In summary, retinal imaging holds high potential as a diagnostic tool for CKD because it is non-invasive, facilitates early detection through observable microvascular changes, offers predictive insights into renal health, and, when paired with deep learning algorithms, enhances the accuracy and effectiveness of CKD screening.
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Affiliation(s)
- Nur Asyiqin Amir Hamzah
- Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia
- Faculty of Engineering and Technology, Multimedia University, Ayer Keroh, Melaka, Malaysia
| | - Wan Mimi Diyana Wan Zaki
- Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia
| | | | - Ruslinda Mustafar
- Faculty of Medicine, Universiti Kebangsaan Malaysia, Cheras, Kuala Lumpur, Malaysia
| | - Assyareefah Hudaibah Saad
- Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, UKM Bangi, Selangor, Malaysia
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Wu G, Cao M, Yao T, Yang W, Zhang Z, Qiu C, Zhang X, Zeng S, Wang R, Ou S, He Y. Evaluation of retinal microcirculation by optical coherence tomography angiography in patients with primary membranous nephropathy. Photodiagnosis Photodyn Ther 2024; 48:104230. [PMID: 38821236 DOI: 10.1016/j.pdpdt.2024.104230] [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: 03/23/2024] [Revised: 05/09/2024] [Accepted: 05/28/2024] [Indexed: 06/02/2024]
Abstract
BACKGROUND Primary membranous nephropathy (PMN) patients may experience retinal microvascular changes. However, current diagnostic methods for PMN are not accurate in analyzing these modifications. In the present study, optical coherence tomography angiography (OCTA) was used for quantitative measurement of microvascular changes in the eyes of PMN patients. METHODS A total of 26 patients with PMN and 26 healthy control (HC) were evaluated in this cross-sectional study. Optical coherence tomography (OCT) and OCTA were used to collect retinal thickness (RT) and microvascular parameters in the macula and optic disk in the superficial capillary plexus (SCP) of all subjects. Clinical data were collected from the PMN group. The OCT and OCTA data for PMN and HC group were compared, and the correlation between the OCTA and clinical data in the PMN group was determined. RESULTS Vascular density (VD) and perfusion density (PD) in the macular area of the PMN group were significantly lower than those of the HC group, especially in the temporal quadrant. No significant difference in the foveal avascular zone (FAZ), optic disc microvascular parameters, RT, and retinal nerve fiber layer (RNFL) thickness was observed between the two groups. Correlation was noted between VD and PD in the macular area and clinical indicators, such as serum creatinine, serum urea nitrogen, 24 h urine volume and urinary protein concentration. CONCLUSION Microvascular alterations in PMN patients occurred before ocular symptoms. The present quantitative study proposed a measurement method for detecting early retinal vascular injury in PMN patients.
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Affiliation(s)
- Guihong Wu
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Mengxia Cao
- Department of Nephrology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China; Sichuan Clinical Research Center for Nephrology, Luzhou, Sichuan, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, Sichuan, China
| | - Tianyu Yao
- Department of Ophthalmology, The Second People's Hospital of Yibin, Southwest Medical University, Yibin, Sichuan, China
| | - Wei Yang
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Zhiru Zhang
- Department of Ophthalmology, Deyang People's Hospital, Deyang, Sichuan, China
| | - Chen Qiu
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Xueqin Zhang
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Shuhan Zeng
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Rui Wang
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China
| | - Santao Ou
- Department of Nephrology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China; Sichuan Clinical Research Center for Nephrology, Luzhou, Sichuan, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, Luzhou, Sichuan, China.
| | - Yue He
- Department of Ophthalmology, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China; Stem Cell Immunity and Regeneration Key Laboratory of Luzhou, The Affiliated Hospital, Southwest Medical University, Luzhou, Sichuan, China.
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Hong Y, Lan L, Hu X, Zuo Y, Deng M, Ye K, Xu F, Chen C, Li M. A cross-sectional study on the impact of hemodialysis duration on retinal nerve fiber layer thinning in hemodialysis patients. Sci Rep 2024; 14:17824. [PMID: 39090115 PMCID: PMC11294536 DOI: 10.1038/s41598-024-68589-z] [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: 02/20/2024] [Accepted: 07/25/2024] [Indexed: 08/04/2024] Open
Abstract
This study aimed to investigate the relationship between hemodialysis duration (HDD) and retinal nerve fiber layer (RNFL) thickness. A total of 60 patients receiving maintenance hemodialysis and 67 healthy controls were analyzed. Spectral domain optical coherence tomography (SD-OCT) was employed to measure annular RNFL thicknesses. The hemodialysis group exhibited reduced temporal and inferior RNFL thicknesses relative to the control group. In hemodialysis patients, the inferior RNFL thickness was negatively correlated with HDD and positively correlated with intraocular pressure (IOP). Moreover, IOP was positively correlated with HDD. Mediation analysis showed that the negative correlation between HDD and inferior RNFL thickness was mediated by IOP. In conclusion, hemodialysis leads to temporal and inferior RNFL thinning, and the thickness reduction is proportional to hemodialysis duration. However, such changes are not induced by an increase in IOP.
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Affiliation(s)
- Yiyi Hong
- Eye Center of Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, Hubei, China
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Lin Lan
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Xiangyu Hu
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Yuan Zuo
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Meiqiu Deng
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Kun Ye
- Department of Nephrology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Fan Xu
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China
| | - Changzheng Chen
- Eye Center of Renmin Hospital of Wuhan University, Wuhan University, Wuhan, 430060, Hubei, China.
| | - Min Li
- Research Center of Ophthalmology, Guangxi Academy of Medical Sciences and Guangxi Health Commission Key Laboratory of Ophthalmology and Related Systemic Diseases Artificial Intelligence Screening Technology and Department of Ophthalmology, The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, China.
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Cliff CL, Squires PE, Hills CE. Tonabersat suppresses priming/activation of the NOD-like receptor protein-3 (NLRP3) inflammasome and decreases renal tubular epithelial-to-macrophage crosstalk in a model of diabetic kidney disease. Cell Commun Signal 2024; 22:351. [PMID: 38970061 PMCID: PMC11225428 DOI: 10.1186/s12964-024-01728-1] [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: 03/15/2024] [Accepted: 06/26/2024] [Indexed: 07/07/2024] Open
Abstract
BACKGROUND Accompanied by activation of the NOD-like receptor protein 3 (NLRP3) inflammasome, aberrant connexin 43 (Cx43) hemichannel-mediated ATP release is situated upstream of inflammasome assembly and inflammation and contributes to multiple secondary complications of diabetes and associated cardiometabolic comorbidities. Evidence suggests there may be a link between Cx43 hemichannel activity and inflammation in the diabetic kidney. The consequences of blocking tubular Cx43 hemichannel-mediated ATP release in priming/activation of the NLRP3 inflammasome in a model of diabetic kidney disease (DKD) was investigated. We examined downstream markers of inflammation and the proinflammatory and chemoattractant role of the tubular secretome on macrophage recruitment and activation. METHODS Analysis of human transcriptomic data from the Nephroseq repository correlated gene expression to renal function in DKD. Primary human renal proximal tubule epithelial cells (RPTECs) and monocyte-derived macrophages (MDMs) were cultured in high glucose and inflammatory cytokines as a model of DKD to assess Cx43 hemichannel activity, NLRP3 inflammasome activation and epithelial-to-macrophage paracrine-mediated crosstalk. Tonabersat assessed a role for Cx43 hemichannels. RESULTS Transcriptomic analysis from renal biopsies of patients with DKD showed that increased Cx43 and NLRP3 expression correlated with declining glomerular filtration rate (GFR) and increased proteinuria. In vitro, Tonabersat blocked glucose/cytokine-dependant increases in Cx43 hemichannel-mediated ATP release and reduced expression of inflammatory markers and NLRP3 inflammasome activation in RPTECs. We observed a reciprocal relationship in which NLRP3 activity exacerbated increased Cx43 expression and hemichannel-mediated ATP release, events driven by nuclear factor kappa-B (NFκB)-mediated priming and Cx43 hemichannel opening, changes blocked by Tonabersat. Conditioned media (CM) from RPTECs treated with high glucose/cytokines increased expression of inflammatory markers in MDMs, an effect reduced when macrophages were pre-treated with Tonabersat. Co-culture using conditioned media from Tonabersat-treated RPTECs dampened macrophage inflammatory marker expression and reduced macrophage migration. CONCLUSION Using a model of DKD, we report for the first time that high glucose and inflammatory cytokines trigger aberrant Cx43 hemichannel activity, events that instigate NLRP3-induced inflammation in RPTECs and epithelial-to-macrophage crosstalk. Recapitulating observations previously reported in diabetic retinopathy, these data suggest that Cx43 hemichannel blockers (i.e., Tonabersat) may dampen multi-system damage observed in secondary complications of diabetes.
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Affiliation(s)
- C L Cliff
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK
| | - P E Squires
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK
| | - C E Hills
- Joseph Banks Laboratories, School of Life and Environmental Sciences, University of Lincoln, Lincoln, LN6 7DL, UK.
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Kim JH, Jeong HC, Shin YU, Lee WJ. Hemodialysis-induced positional changes in lamina cribrosa. Sci Rep 2024; 14:15250. [PMID: 38956090 PMCID: PMC11219866 DOI: 10.1038/s41598-024-65700-2] [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: 01/24/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024] Open
Abstract
This study is aimed to investigate the effect of hemodialysis (HD) on the lamina cribrosa (LC) of the optic nerve head (ONH) using swept-source optical coherence tomography (SS-OCT) and other ophthalmological parameters in patients with end-stage kidney disease (ESKD). This prospective observational study included 29 patients who underwent HD for ESKD. ONH parameters including neural canal diameter (NCD), peripapillary vertical height (PVH), and anterior LC depth (LCD), were assessed using SS-OCT. Changes in the ONH parameters before and after HD were statistically analysed. Correlations between changes in the LCD and other ocular and systemic measurements were identified using Pearson's correlation analyses. The mean anterior LCD significantly decreased from 441.6 ± 139.8 μm before HD to 413.5 ± 141.7 μm after HD (P = 0.001). Mean NCD and PVH did not show significant changes after HD (P = 0.841 and P = 0.574, respectively). A significant correlation was found between changes in the anterior LCD and the mean ocular perfusion pressure (r = 0.397, P = 0.036). We observed a significant decrease in anterior LCD after HD. Our study suggests that HD can influence the ONH, especially in the LC.
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Affiliation(s)
- Ji Hong Kim
- Department of Ophthalmology, Hanyang University College of Medicine, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea
- Department of Ophthalmology, Hanyang University Seoul Hospital, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea
| | - Hyo Chan Jeong
- Department of Ophthalmology, Hanyang University College of Medicine, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea
- Department of Ophthalmology, Hanyang University Seoul Hospital, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea
| | - Yong Un Shin
- Department of Ophthalmology, Hanyang University College of Medicine, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea
- Department of Ophthalmology, Hanyang University Guri Hospital, Guri, Korea
| | - Won June Lee
- Department of Ophthalmology, Hanyang University College of Medicine, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea.
- Department of Ophthalmology, Hanyang University Seoul Hospital, 222-1, Wangsimni-ro Seongdong-gu, Seoul, 104763, Korea.
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11
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Chen J, Liu C, Sun C, Zeng J, Chi J, Che K, Wang Y. Association between Serum Phosphorus Levels and Diabetic Retinopathy: A Cross-Sectional Study. Int J Endocrinol 2024; 2024:3830246. [PMID: 38904033 PMCID: PMC11187971 DOI: 10.1155/2024/3830246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 05/27/2024] [Accepted: 05/30/2024] [Indexed: 06/22/2024] Open
Abstract
Background and Aims The aim of this study was to investigate the association between serum phosphate levels and diabetic retinopathy (DR) in patients with type 2 diabetes mellitus (T2DM). Methods and Results The study sample consisted of 1657 T2DM patients hospitalized between 2017 and 2019. Patients were categorized into quartiles based on their serum phosphate levels (Q1-Q4). An increasing trend in the prevalence of DR was observed across these quartiles. Subsequently, logistic regression analysis was employed to adjust for potential confounders, such as gender, age, BMI, and duration of diabetes, and to evaluate the odds ratios (ORs) associated with these quartiles. The prevalence of DR showed an increasing trend with elevated serum phosphate levels. Logistic regression further confirmed that serum phosphate levels remain an independent risk factor for DR. Conclusion Elevated serum phosphate levels are closely associated with the prevalence of DR in hospitalized T2DM patients. Further studies are needed to establish causality. This trial is registered with chiCTR2000032374.
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Affiliation(s)
- Jintao Chen
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Chuanfeng Liu
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Cunwei Sun
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jia Zeng
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jingwei Chi
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Kui Che
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - Yangang Wang
- Department of Endocrinology, The Affiliated Hospital of Qingdao University, Qingdao, China
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12
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Xue CC, Sim R, Chee ML, Yu M, Wang YX, Rim TH, Hyung PK, Woong KS, Song SJ, Nangia V, Panda-Jonas S, Wang NL, Hao J, Zhang Q, Cao K, Sasaki M, Harada S, Toru T, Ryo K, Raman R, Surya J, Khan R, Bikbov M, Wong IY, Cheung CMG, Jonas JB, Cheng CY, Tham YC. Is Kidney Function Associated with Age-Related Macular Degeneration?: Findings from the Asian Eye Epidemiology Consortium. Ophthalmology 2024; 131:692-699. [PMID: 38160880 DOI: 10.1016/j.ophtha.2023.12.030] [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: 09/25/2023] [Revised: 12/06/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024] Open
Abstract
PURPOSE Chronic kidney disease (CKD) may elevate susceptibility to age-related macular degeneration (AMD) because of shared risk factors, pathogenic mechanisms, and genetic polymorphisms. Given the inconclusive findings in prior studies, we investigated this association using extensive datasets in the Asian Eye Epidemiology Consortium. DESIGN Cross-sectional study. PARTICIPANTS Fifty-one thousand two hundred fifty-three participants from 10 distinct population-based Asian studies. METHODS Age-related macular degeneration was defined using the Wisconsin Age-Related Maculopathy Grading System, the International Age-Related Maculopathy Epidemiological Study Group Classification, or the Beckman Clinical Classification. Chronic kidney disease was defined as estimated glomerular filtration rate (eGFR) of less than 60 ml/min per 1.73 m2. A pooled analysis using individual-level participant data was performed to examine the associations between CKD and eGFR with AMD (early and late), adjusting for age, sex, hypertension, diabetes, body mass index, smoking status, total cholesterol, and study groups. MAIN OUTCOME MEASURES Odds ratio (OR) of early and late AMD. RESULTS Among 51 253 participants (mean age, 54.1 ± 14.5 years), 5079 had CKD (9.9%). The prevalence of early AMD was 9.0%, and that of late AMD was 0.71%. After adjusting for confounders, individuals with CKD were associated with higher odds of late AMD (OR, 1.46; 95% confidence interval [CI], 1.11-1.93; P = 0.008). Similarly, poorer kidney function (per 10-unit eGFR decrease) was associated with late AMD (OR, 1.12; 95% CI, 1.05-1.19; P = 0.001). Nevertheless, CKD and eGFR were not associated significantly with early AMD (all P ≥ 0.149). CONCLUSIONS Pooled analysis from 10 distinct Asian population-based studies revealed that CKD and compromised kidney function are associated significantly with late AMD. This finding further underscores the importance of ocular examinations in patients with CKD. FINANCIAL DISCLOSURE(S) Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.
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Affiliation(s)
- Can Can Xue
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore
| | - Ralene Sim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore
| | - Miao Li Chee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore
| | - Marco Yu
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore
| | - Ya Xing Wang
- Beijing Institute of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Tyler Hyungtaek Rim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore
| | - Park Kyu Hyung
- Department of Ophthalmology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kang Se Woong
- Department of Ophthalmology of Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Su Jeong Song
- Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | | | | | - Ning Li Wang
- Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Jie Hao
- Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Qing Zhang
- Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Kai Cao
- Department of Ophthalmology, Beijing Tongren Hospital, Capital Medical University, Beijing, China
| | - Mariko Sasaki
- Department of Ophthalmology, Keio University School of Medicine, Tokyo, Japan; Division of Vision Research, National Institute of Sensory Organs, National Hospital Organization Tokyo Medical Center, Tokyo, Japan
| | - Sei Harada
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan
| | - Takebayashi Toru
- Department of Preventive Medicine and Public Health, Keio University School of Medicine, Tokyo, Japan
| | - Kawasaki Ryo
- Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Rajiv Raman
- Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India
| | - Janani Surya
- Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India
| | - Rehana Khan
- Shri Bhagwan Mahavir Vitreoretinal Services, Sankara Nethralaya, Chennai, India
| | - Mukharram Bikbov
- Ufa Eye Research Institute, Ufa, Bashkortostan, Russian Federation
| | - Ian Y Wong
- Department of Ophthalmology, The Hong Kong Sanatorium & Hospital, Hong Kong SAR, China
| | - Chui Ming Gemmy Cheung
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore; Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, Republic of Singapore
| | - Jost B Jonas
- Department of Ophthalmology, Medical Faculty Mannheim Heidelberg University, Mannheim, Germany; Institute of Molecular and Clinical Ophthalmology, Basel, Switzerland
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore; Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, Republic of Singapore; Centre for Innovation and Precision Eye Health & Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore
| | - Yih-Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Republic of Singapore; Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, Republic of Singapore; Centre for Innovation and Precision Eye Health & Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Republic of Singapore.
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13
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Hou Y, Liu Q, Xiao Z, Li Y, Tian X, Wang Z. Association between chronic kidney disease and age-related macular degeneration: a Mendelian randomization study. Front Aging Neurosci 2024; 16:1399666. [PMID: 38872627 PMCID: PMC11169943 DOI: 10.3389/fnagi.2024.1399666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Accepted: 05/20/2024] [Indexed: 06/15/2024] Open
Abstract
Purpose Observational studies have reported inconsistent results on the relationship between chronic kidney disease (CKD) and age-related macular degeneration (AMD). The primary objective of this study was to investigate the causal relationships between estimated glomerular filtration rate (eGFR), CKD, its common causes, and AMD among participants of European descent. Methods Genetic variants associated with eGFR, CKD and its common causes, encompassing diabetic nephropathy (DN), immunoglobulin A nephropathy (IgAN), and membranous nephropathy (MN) were obtained from previously published genome-wide association studies (GWAS) and FinnGen database. Summary statistics for early AMD, AMD, dry AMD, and wet AMD were acquired from the GWAS and FinnGen database. Inverse-variance-weighted (IVW) method was the main MR analysis. Sensitivity analyses were performed with Cochran's Q, MR-Egger intercept, and leave-one-out analysis. In addition, RadialMR was utilized to identify and remove outliers. Results IVW results showed that CKD, eGFR were not associated with any type of AMD (p > 0.05). DN (OR: 1.042, 95% CI: 1.002-1.083, p = 0.037) and MN (OR: 1.023, 95% CI: 1.007-1.040, p = 0.005) were associated with an increased risk of earl AMD. DN (OR: 1.111, 95% CI: 1.07-1.154, p = 4.87 × 10-8), IgAN (OR: 1.373, 95% CI: 1.097-1.719, p = 0.006), and MN (OR: 1.036, 95% CI: 1.008-1.064, p = 0.012) were associated with an increased risk of AMD. DN (OR: 1.090, 95% CI: 1.042-1.140, p = 1.57 × 10-4) and IgAN (OR: 1.480, 95% CI: 1.178-1.858, p = 7.55 × 10-4) were associated with an increased risk of dry AMD. The risk of wet AMD was associated with DN (OR: 1.107, 95% CI: 1.043-1.174, p = 7.56 × 10-4) and MN (OR: 1.071, 95% CI: 1.040-1.103, p = 5.48 × 10-6). Conclusion This MR study found no evidence of causal relationship between CKD and AMD. DN, IgAN, and MN may increase risk of AMD. This findings underscore the importance of ocular examinations in patients with DN, MN, and IgAN. More studies are needed to support the findings of our current study.
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Affiliation(s)
- Yawei Hou
- Institute of Chinese Medical Literature and Culture, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Qinglin Liu
- College of Traditional Chinese Medicine, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhenwei Xiao
- Department of Nephrology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yameng Li
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Xinyang Tian
- Institute of Chinese Medical Literature and Culture, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Zhenguo Wang
- Institute of Chinese Medical Literature and Culture, Shandong University of Traditional Chinese Medicine, Jinan, China
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14
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Kislikova M, Gaitán-Valdizán JJ, Parra Blanco JA, García Unzueta MT, Rodríguez Vidriales M, Escagedo Cagigas C, Piñera Haces VC, Valentín Muñoz MDLO, Benito Hernández A, Ruiz San Millan JC, Rodrigo Calabia E. Looking into the Eyes to See the Heart of Chronic Kidney Disease Patients. Life (Basel) 2024; 14:533. [PMID: 38672803 PMCID: PMC11051204 DOI: 10.3390/life14040533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/03/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
In patients with chronic kidney disease (CKD), the main cause of morbidity and mortality is cardiovascular disease (CVD). Both coronary artery calcium scoring by computed tomography (CT) and optical coherence tomography (OCT) are used to identify patients at increased risk for ischemic heart disease, thereby indicating a higher cardiovascular risk profile. Our study aimed to investigate the utility of these techniques in the CKD population. In patients with CKD, OCT was used to measure the choroidal thickness (CHT) and the thickness of the peripapillary retinal nerve fiber layer (pRNFL). A total of 127 patients were included, including 70 men (55%) with an estimated glomerular filtration rate (eGFR) of 39 ± 30 mL/min/1.73 m2. Lower pRNFL thickness was found to be related to high-sensitivity troponin I (r = -0.362, p < 0.001) and total coronary calcification (r = -0.194, p = 0.032). In a multivariate analysis, pRNFL measurements remained associated with age (β = -0.189; -0.739--0.027; p = 0.035) and high-sensitivity troponin I (β = -0.301; -0.259--0.071; p < 0.001). Severe coronary calcification (Agatston score ≥ 400 HU) was related to a worse eGFR (p = 0.008), a higher grade of CKD (p = 0.036), and a thinner pRNFL (p = 0.011). The ROC curve confirmed that the pRNFL measurement could determine the patients with an Agatston score of ≥400 HU (AUC 0.638; 95% CI 0.525-0.750; p = 0.015). Our study concludes that measurement of pRNFL thickness using OCT is related to the markers associated with ischemic heart disease, such as coronary calcification and high-sensitivity troponin I, in the CKD population.
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Affiliation(s)
- Maria Kislikova
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | | | | | | | - María Rodríguez Vidriales
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - Clara Escagedo Cagigas
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - Vicente Celestino Piñera Haces
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - María de la Oliva Valentín Muñoz
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - Adalberto Benito Hernández
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - Juan Carlos Ruiz San Millan
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
| | - Emilio Rodrigo Calabia
- Immunopathology Group, Nephrology Department, Marqués de Valdecilla University Hospital—IDIVAL, 39008 Santander, Spain; (M.R.V.); (C.E.C.); (V.C.P.H.); (M.d.l.O.V.M.); (A.B.H.); (J.C.R.S.M.); (E.R.C.)
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15
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Dou R, Chu Y, Han Q, Zhang W, Bi X. Giant retinal pigment epithelium tears with membranous nephropathy: a case report and literature review. BMC Ophthalmol 2024; 24:177. [PMID: 38632537 PMCID: PMC11025203 DOI: 10.1186/s12886-024-03426-5] [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: 01/17/2024] [Accepted: 04/02/2024] [Indexed: 04/19/2024] Open
Abstract
BACKGROUND Kidney and eye diseases may be closely linked. Tears of the retinal pigment epithelium (RPE) have been reported to be related to kidney diseases, such as IgA nephropathy and light-chain deposition disease. However, pigment epithelium tears associated with membranous nephropathy have not been reported or systematically analysed. CASE PRESENTATION A 68-year-old man presented with decreased right eye visual acuity. Optical coherence tomography (OCT) revealed cystic macular edema, localized serous detachment of the retina and loss of the outer retinal structure in the right eye and retinal pigment epithelium detachment (PED) combined with serous detachment of the retina in the left eye. Fundus fluorescein angiography (FFA) and indocyanine green angiography (ICGA) revealed giant RPE tears in the right eye and exudative age-related macular degeneration in the left eye. The patient also suffered from severe membranous nephropathy-autoimmune glomerulonephritis. Renal biopsy immunofluorescence revealed a roughly granular pattern, with immunoglobulin G (IgA), immunoglobulin G (IgG), IgM, complement C3(Components 3), λ light chain and κ light chain subepithelial staining. CONCLUSIONS It is hypothesized that severe membranous nephropathy caused immune complex deposition on the surface of Bruch membrane, resulting in weakened adhesion between the RPE and Bruch membrane and impaired RPE pump function, combined with age-related macular degeneration, leading to giant RPE tears in the right eye. Close attention should be given to the ocular condition of patients with membranous nephropathy to facilitate timely treatment and avoid serious consequences.
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Affiliation(s)
- Rui Dou
- Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, 300070, China
| | - Yanhua Chu
- Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, 300070, China.
| | - Quanhong Han
- Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, 300070, China
| | - Wei Zhang
- Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, 300070, China
| | - Xue Bi
- Tianjin Key Lab of Ophthalmology and Visual Science, Tianjin Eye Hospital, Tianjin, 300070, China
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16
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Lin W, Chen X, Wang L, Wang Q, Li Y, Zhang L, Cao X, Wang Y, Yu X, Wang G, Zhang J, Dong Z. Optical coherence tomography angiography for the differentiation of diabetic nephropathy from non-diabetic renal disease. Photodiagnosis Photodyn Ther 2024; 46:104099. [PMID: 38663487 DOI: 10.1016/j.pdpdt.2024.104099] [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: 02/01/2024] [Revised: 03/29/2024] [Accepted: 04/22/2024] [Indexed: 05/03/2024]
Abstract
BACKGROUND To provide a new non-invasive method for the differentiation of diabetic nephropathy (DN) from non-diabetic renal disease (NDRD) by assessing retinal microstructure using optical coherence tomography angiography (OCTA). METHODS OCTA parameters were recorded and their relationship with DN was analysed. A differential diagnosis regression model for DN was established, and the diagnostic efficiency was evaluated. RESULTS Based on the pathological results of renal biopsy, 31 DN patients and 35 NDRD patients were included. Multivariate logistic regression analysis showed that DN was independently associated with the following parameters: 15.3 mm-1 ≤ vessel density (VD) full < 17.369 mm-1 (odds ratio [OR]=8.523; 95% confidence interval [CI]=1.387-52.352; P = 0.021), VD full < 15.3 mm-1 (OR=8.202; 95% CI=1.110-60.623; P = 0.039), DM duration > 60 months (OR=7.588; 95% CI=1.569-36.692; P = 0.012), and estimated glomerular filtration rate < 60 mL/min/1.73 m2 (OR=24.484; 95% CI=4.308-139.142; P < 0.001). The area under the receiver operating characteristic curve was 0.911, indicating a high diagnostic efficiency. CONCLUSIONS VD full < 17.369 mm-1, DM duration > 60 months, and eGFR < 60 mL/min/1.73 m2 may indicate the presence of DN. OCTA may be an effective non-invasive method for identifying DN and NDRD.
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Affiliation(s)
- Wenwen Lin
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China; School of Clinical Medicine, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Xiaoniao Chen
- Senior Department of Ophthalmology, the Third Medical Center, Chinese PLA General Hospital, Beijing, PR China; Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing, PR China.
| | - Liqiang Wang
- Senior Department of Ophthalmology, the Third Medical Center, Chinese PLA General Hospital, Beijing, PR China
| | - Qian Wang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China
| | - Ying Li
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing, PR China
| | - Li Zhang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China
| | - Xueying Cao
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China
| | - Yong Wang
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China
| | - Xinyue Yu
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing, PR China
| | - Guoyan Wang
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing, PR China
| | - Jianxin Zhang
- Department of Ophthalmology, Chinese PLA General Hospital, Beijing, PR China
| | - Zheyi Dong
- Department of Nephrology, First Medical Center of Chinese PLA General Hospital, Nephrology Institute of the Chinese People's Liberation Army, National Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing Key Laboratory of Kidney Disease Research, Beijing, PR China.
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He F, Ng Yin Ling C, Nusinovici S, Cheng CY, Wong TY, Li J, Sabanayagam C. Development and External Validation of Machine Learning Models for Diabetic Microvascular Complications: Cross-Sectional Study With Metabolites. J Med Internet Res 2024; 26:e41065. [PMID: 38546730 PMCID: PMC11009843 DOI: 10.2196/41065] [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: 01/18/2023] [Revised: 10/12/2023] [Accepted: 12/19/2023] [Indexed: 04/14/2024] Open
Abstract
BACKGROUND Diabetic kidney disease (DKD) and diabetic retinopathy (DR) are major diabetic microvascular complications, contributing significantly to morbidity, disability, and mortality worldwide. The kidney and the eye, having similar microvascular structures and physiological and pathogenic features, may experience similar metabolic changes in diabetes. OBJECTIVE This study aimed to use machine learning (ML) methods integrated with metabolic data to identify biomarkers associated with DKD and DR in a multiethnic Asian population with diabetes, as well as to improve the performance of DKD and DR detection models beyond traditional risk factors. METHODS We used ML algorithms (logistic regression [LR] with Least Absolute Shrinkage and Selection Operator and gradient-boosting decision tree) to analyze 2772 adults with diabetes from the Singapore Epidemiology of Eye Diseases study, a population-based cross-sectional study conducted in Singapore (2004-2011). From 220 circulating metabolites and 19 risk factors, we selected the most important variables associated with DKD (defined as an estimated glomerular filtration rate <60 mL/min/1.73 m2) and DR (defined as an Early Treatment Diabetic Retinopathy Study severity level ≥20). DKD and DR detection models were developed based on the variable selection results and externally validated on a sample of 5843 participants with diabetes from the UK biobank (2007-2010). Machine-learned model performance (area under the receiver operating characteristic curve [AUC] with 95% CI, sensitivity, and specificity) was compared to that of traditional LR adjusted for age, sex, diabetes duration, hemoglobin A1c, systolic blood pressure, and BMI. RESULTS Singapore Epidemiology of Eye Diseases participants had a median age of 61.7 (IQR 53.5-69.4) years, with 49.1% (1361/2772) being women, 20.2% (555/2753) having DKD, and 25.4% (685/2693) having DR. UK biobank participants had a median age of 61.0 (IQR 55.0-65.0) years, with 35.8% (2090/5843) being women, 6.7% (374/5570) having DKD, and 6.1% (355/5843) having DR. The ML algorithms identified diabetes duration, insulin usage, age, and tyrosine as the most important factors of both DKD and DR. DKD was additionally associated with cardiovascular disease history, antihypertensive medication use, and 3 metabolites (lactate, citrate, and cholesterol esters to total lipids ratio in intermediate-density lipoprotein), while DR was additionally associated with hemoglobin A1c, blood glucose, pulse pressure, and alanine. Machine-learned models for DKD and DR detection outperformed traditional LR models in both internal (AUC 0.838 vs 0.743 for DKD and 0.790 vs 0.764 for DR) and external validation (AUC 0.791 vs 0.691 for DKD and 0.778 vs 0.760 for DR). CONCLUSIONS This study highlighted diabetes duration, insulin usage, age, and circulating tyrosine as important factors in detecting DKD and DR. The integration of ML with biomedical big data enables biomarker discovery and improves disease detection beyond traditional risk factors.
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Affiliation(s)
- Feng He
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Department of Statistics and Data Science, National University of Singapore, Singapore, Singapore
| | - Clarissa Ng Yin Ling
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
| | - Simon Nusinovici
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore
| | - Jialiang Li
- Department of Statistics and Data Science, National University of Singapore, Singapore, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore
- Ophthalmology and Visual Sciences Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore
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Zhang W, Li J, Zhu L, Zeng S, Lu Y, Zhang Y, Gu X, Wu H, Yang L. Choroidal Vascularity Index and Choroidal Structural Changes in Children With Nephrotic Syndrome. Transl Vis Sci Technol 2024; 13:18. [PMID: 38512284 PMCID: PMC10960224 DOI: 10.1167/tvst.13.3.18] [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: 09/27/2023] [Accepted: 02/11/2024] [Indexed: 03/22/2024] Open
Abstract
Purpose To investigate the choroidal vascularity index (CVI) and choroidal structural changes in children with nephrotic syndrome. Methods This was a cross-sectional study involving 45 children with primary nephrotic syndrome and 40 normal controls. All participants underwent enhanced depth imaging-optical coherence tomography examinations. An automatic segmentation method based on deep learning was used to segment the choroidal vessels and stroma, and the choroidal volume (CV), vascular volume (VV), and CVI within a 4.5 mm diameter circular area centered around the macular fovea were obtained. Clinical data, including blood lipids, serum proteins, renal function, and renal injury indicators, were collected from the patients. Results Compared with normal controls, children with nephrotic syndrome had a significant increase in CV (nephrotic syndrome: 4.132 ± 0.464 vs. normal controls: 3.873 ± 0.574; P = 0.024); no significant change in VV (nephrotic syndrome: 1.276 ± 0.173 vs. normal controls: 1.277 ± 0.165; P = 0.971); and a significant decrease in the CVI (nephrotic syndrome: 0.308 [range, 0.270-0.386] vs. normal controls: 0.330 [range, 0.288-0.387]; P < 0.001). In the correlation analysis, the CVI was positively correlated with serum total protein, serum albumin, serum prealbumin, ratio of serum albumin to globulin, and 24-hour urine volume and was negatively correlated with total cholesterol, low-density lipoprotein cholesterol, urinary protein concentration, and ratio of urinary transferrin to creatinine (all P < 0.05). Conclusions The CVI is significantly reduced in children with nephrotic syndrome, and the decrease in the CVI parallels the severity of kidney disease, indicating choroidal involvement in the process of nephrotic syndrome. Translational Relevance Our findings contribute to a deeper understanding of how nephrotic syndrome affects the choroid.
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Affiliation(s)
- Wenbo Zhang
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Junmeng Li
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Lei Zhu
- Institute of Medical Technology, Peking University Health Science Center, Peking University, Beijing, China
- National Biomedical Imaging Center, Peking University, Beijing, China
| | - Shuang Zeng
- Institute of Medical Technology, Peking University Health Science Center, Peking University, Beijing, China
- National Biomedical Imaging Center, Peking University, Beijing, China
| | - Yanye Lu
- Institute of Medical Technology, Peking University Health Science Center, Peking University, Beijing, China
- National Biomedical Imaging Center, Peking University, Beijing, China
| | - Yadi Zhang
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Xiaopeng Gu
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Hailong Wu
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
| | - Liu Yang
- Department of Ophthalmology, Peking University First Hospital, Beijing, China
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Chiu SL, Nfor ON, Chen CL, Tantoh DM, Lu WY, Chen PH, Liaw YP. Susceptibility to eye diseases in relation to age and kidney failure among Taiwanese adults. BMC Geriatr 2024; 24:174. [PMID: 38374002 PMCID: PMC10875750 DOI: 10.1186/s12877-024-04740-9] [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: 05/18/2023] [Accepted: 01/23/2024] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND The kidney and eyes share common pathways and are thought to be closely connected. Chronic kidney disease and major eye diseases, such as cataract and glaucoma, are strongly associated with age. However, further investigation is needed to understand the joint impact of age and kidney diseases on eye diseases. In this study, we assessed the risk of eye diseases in relation to age and kidney failure in Taiwanese adults. METHODS Our study included 127,561 cancer-free volunteers aged 30 to 70 years who participated in the Taiwan Biobank (TWB) project from 2008 to 2020. Information on the main exposures (kidney failure and age) and the outcome (eye diseases, including glaucoma, cataract, xerophthalmia, and retinal detachment) was collected through questionnaires. RESULTS In general, kidney failure and older age were independently associated with a higher risk of eye, particularly cataract and retinal detachment: prevalence odds ratio (POR); 95% confidence interval (CI) = 2.480; 1.635-3.761 for cataract and 3.885; 1.968-7.666 for retinal detachment. A significant interaction between kidney failure and age on cataract was observed (p-value = 0.0002). Age-stratified analysis revealed a higher risk of cataract among patients with kidney failure aged below 50 (POR = 6.534; 95% CI = 2.493-17.124) and between 50 and 60 years (POR = 3.957; 95%CI = 1.986-7.881). Combining kidney failure and age (reference: no kidney failure and age < 50 years), kidney failure in all age groups was associated with a higher risk of cataract. The PORs; 95% CIs were 10.725; 4.227-27.211 for patients below 50 years, 28.487; 14.270-56.866 for those aged 50-60 years, and 43.183; 24.434-72.824 for those > 60 years. Combining cataract and age (reference: no cataract and age < 50 years), patients below 50 years had the highest risk of kidney failure (POR; 95% CI = 9.510; 3.722-24.297). CONCLUSIONS Our study suggests that age and kidney failure may jointly contribute to eye diseases, particularly cataract. The association between cataract and kidney failure could be bidirectional, especially in individuals below 50 years. This significant bidirectional relationship underscores the need for screening patients with cataract for kidney failure and vice versa, particularly in younger adults.
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Affiliation(s)
- Shin-Lin Chiu
- Department of Ophthalmology, Changhua Christian Hospital, 500, Changhua City, Taiwan
- College of Nursing and Health Sciences, Da-Yeh University, 515006, Changhua County, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, 40201, Taichung City, Taiwan
| | - Oswald Ndi Nfor
- Department of Public Health, Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1 Jianguo N. Rd, 40201, Taichung City, Taiwan
| | - Chiu-Liang Chen
- Department of Orthopedics, Changhua Christian Hospital, 500, Changhua City, Taiwan
- Department of Nursing, Hungkuang University, 433, Taichung City, Taiwan
| | - Disline Manli Tantoh
- Department of Public Health, Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1 Jianguo N. Rd, 40201, Taichung City, Taiwan
- Department of Medical Imaging, Chung Shan Medical University Hospital, 40201, Taichung City, Taiwan
| | - Wen Yu Lu
- Department of Public Health, Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1 Jianguo N. Rd, 40201, Taichung City, Taiwan
| | - Pei-Hsin Chen
- Department of Public Health, Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1 Jianguo N. Rd, 40201, Taichung City, Taiwan
| | - Yung-Po Liaw
- Department of Public Health, Institute of Public Health, Chung Shan Medical University, No. 110, Sec. 1 Jianguo N. Rd, 40201, Taichung City, Taiwan.
- Department of Medical Imaging, Chung Shan Medical University Hospital, 40201, Taichung City, Taiwan.
- Medical Imaging and Big Data Center, Chung Shan Medical University Hospital, 40201, Taichung City, Taiwan.
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Madlock-Brown C, Lee A, Seltzer J, Solomonides A, Mathews N, Phuong J, Weiskopf N, Adams WG, Lehmann H, Espinoza J. Racial Disparities in Diabetes Care and Outcomes for Patients with Visual Impairment: A Descriptive Analysis of the TriNetX Research Network. RESEARCH SQUARE 2024:rs.3.rs-3901158. [PMID: 38352357 PMCID: PMC10862972 DOI: 10.21203/rs.3.rs-3901158/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Background: This research delves into the confluence of racial disparities and health inequities among individuals with disabilities, with a focus on those contending with both diabetes and visual impairment. Methods: Utilizing data from the TriNetX Research Network, which includes electronic medical records of roughly 115 million patients from 83 anonymous healthcare organizations, this study employs a directed acyclic graph (DAG) to pinpoint confounders and augment interpretation. We identified patients with visual impairments using ICD-10 codes, deliberately excluding diabetes-related ophthalmology complications. Our approach involved multiple race-stratified analyses, comparing co-morbidities like chronic pulmonary disease in visually impaired patients against their counterparts. We assessed healthcare access disparities by examining the frequency of annual visits, instances of two or more A1c measurements, and glomerular filtration rate (GFR) measurements. Additionally, we evaluated diabetes outcomes by comparing the risk ratio of uncontrolled diabetes (A1c > 9.0) and chronic kidney disease in patients with and without visual impairments. Results: The incidence of diabetes was substantially higher (nearly double) in individuals with visual impairments across White, Asian, and African American populations. Higher rates of chronic kidney disease were observed in visually impaired individuals, with a risk ratio of 1.79 for African American, 2.27 for White, and non-significant for the Asian group. A statistically significant difference in the risk ratio for uncontrolled diabetes was found only in the White cohort (0.843). White individuals without visual impairments were more likely to receive two A1c tests, a trend not significant in other racial groups. African Americans with visual impairments had a higher rate of glomerular filtration rate testing. However, White individuals with visual impairments were less likely to undergo GFR testing, indicating a disparity in kidney health monitoring. This pattern of disparity was not observed in the Asian cohort. Conclusions: This study uncovers pronounced disparities in diabetes incidence and management among individuals with visual impairments, particularly among White, Asian, and African American groups. Our DAG analysis illuminates the intricate interplay between SDoH, healthcare access, and frequency of crucial diabetes monitoring practices, highlighting visual impairment as both a medical and social issue.
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21
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Ari Widjaja S, Mieler WF, Sasono W, Soelistijo SA, Kartasasmita AS, Murakami A, Nakao S. Retinal neurovascular alteration in type 2 diabetes with renal impairment in association with systemic arterial stiffness. Int J Retina Vitreous 2024; 10:2. [PMID: 38167275 PMCID: PMC10763135 DOI: 10.1186/s40942-023-00521-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) patients should be alert for subclinical macroangiopathy. We aimed to investigate the association between retinal neurovascular alteration and systemic arterial stiffness in type 2 diabetes mellitus (type 2 DM) patients with varying degrees of renal impairment. METHODS The study included 170 patients with confirmed diagnosis of type 2 DM aged ≥18 years old. Renal function was assessed by estimated glomerular filtration rate (eGFR). Arterial stiffness was measured by brachial-ankle pulse wave velocity (baPWV) and ankle brachial index (ABI). Retinal neurovascular parameters were derived from Optical Coherence Tomography (OCT)/OCT-Angiography, represented by vessel density (VD Central, Inner, Outer, Full), foveal avascular zone (FAZ area and FAZ perimeter) of the superficial capillary plexus, the average of macular ganglion cell-inner plexiform layer thickness (ave mGC-IPLt) and the average of retinal nerve fiber layer thickness (aveRNFLt). The association between variables among the groups (according to renal function, diabetic retinopathy (DR) severity, and arterial stiffness categories) were analyzed by regression analysis with multiple hypothesis testing commands. RESULTS Out of the 265 eyes, the mean DM duration and HbA1c were 6.21 ± 6.37 years and 8.44 ± 2.06% respectively. While the mean of eGFR, baPWV and ABI were 66.78 ± 32.80 ml/min/1.73m2, 15.49 ± 3.07 m/s, and 1.05 ± 0.12, respectively. Patients with more severe renal impairment demonstrated longer DM duration (p < 0.001), higher baPWV (p < 0.0001), and retinal vascular alteration. Proliverative DR group showed the lowest eGFR (p < 0.0001), highest baPWV (p < 0.0001), and retinal neurovascular changes. Significantly lower eGFR and retinal vascular alteration were found in the baPWV > 14 group. Some neurovascular parameters were significantly negatively correlated with baPWV; moreover, retinal neurovascular changes were also noted in the abnormal ABI group. CONCLUSIONS The strong association between changes in the retinal neurovascular system, DR severity, renal impairment, and arterial stiffness in type 2 DM was confirmed. Patients with more severe renal impairment had higher levels of arterial stiffness, more severe DR and retinal neurovascular alteration. Retinal neurovascular changes seen in OCT/OCTA might mimic renal microvascular alteration and systemic arterial stiffness. Therefore, assessment of baPWV and OCT/OCTA should be integrated in DR screening to enhance cardiovascular risk stratification and prognosis as well as to provide clinically useful early identification of subclinical micro- and macrovascular alterations.
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Affiliation(s)
- Sauli Ari Widjaja
- Department of Ophthalmology, Faculty of Medicine, Universitas Airlangga/ Dr. Soetomo General Academic Hospital, Jl. Mayjen. Prof. Dr. Moestopo 6-8, Gubeng, 60286, Surabaya, East Java, Indonesia.
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan.
| | - William F Mieler
- Department of Ophthalmology and Visual Sciences, University of Illinois at Chicago, Chicago, USA
| | - Wimbo Sasono
- Department of Ophthalmology, Faculty of Medicine, Universitas Airlangga/ Dr. Soetomo General Academic Hospital, Jl. Mayjen. Prof. Dr. Moestopo 6-8, Gubeng, 60286, Surabaya, East Java, Indonesia
| | - Soebagijo A Soelistijo
- Department of Internal Medicine, Faculty of Medicine, Universitas Airlangga/ Dr. Soetomo General Academic Hospital, Surabaya, East Java, Indonesia
| | - Arief S Kartasasmita
- Department of Ophthalmology, Faculty of Medicine, Universitas Padjadjaran/ Cicendo National Eye Hospital, Bandung, West Java, Indonesia
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shintaro Nakao
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, Japan
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Majithia S, Chong CCY, Chee ML, Yu M, Soh ZD, Thakur S, Lavanya R, Rim TH, Nusinovici S, Koh V, Sabanayagam C, Cheng CY, Tham YC. Associations between Chronic Kidney Disease and Thinning of Neuroretinal Layers in Multiethnic Asian and White Populations. OPHTHALMOLOGY SCIENCE 2024; 4:100353. [PMID: 37869020 PMCID: PMC10587624 DOI: 10.1016/j.xops.2023.100353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 05/22/2023] [Accepted: 06/14/2023] [Indexed: 10/24/2023]
Abstract
Purpose To evaluate the relationships between chronic kidney disease (CKD) with retinal nerve fiber layer (RNFL) and ganglion cell-inner plexiform layer (GCIPL) thickness profiles of eyes in Asian and White populations. Design Cross-sectional analysis. Participants A total of 5066 Asian participants (1367 Malays, 1772 Indians, and 1927 Chinese) from the Singapore Epidemiology of Eye Diseases Study (SEED) were included, consisting of 9594 eyes for peripapillary RNFL analysis and 8661 eyes for GCIPL analysis. Additionally, 45 064 White participants (87 649 eyes) from the United Kingdom Biobank (UKBB) were included for both macular RNFL analysis and GCIPL analysis. Methods Nonglaucoma participants aged ≥ 40 years with complete data for estimated glomerular filtration rate (eGFR) were included from both SEED and UKBB. In SEED, peripapillary RNFL and GCIPL thickness were measured by Cirrus HD-OCT 4000. In UKBB, macular RNFL and GCIPL were measured by Topcon 3D-OCT 1000 Mark II. Chronic kidney disease was defined as eGFR < 60 ml/min/1.73 m2 in both data sets. To evaluate the associations between kidney function status with RNFL and GCIPL thickness profiles, multivariable linear regression with generalized estimating equation models were performed in SEED and UKBB data sets separately. Main Outcome Measures Average peripapillary and macular RNFL thickness and macular GCIPL thickness. Results In SEED, after adjusting for age, gender, ethnicity, systolic blood pressure, antihypertensive medication, diabetes, hyperlipidemia, body mass index, smoking status, and intraocular pressure, presence of CKD (β = -1.31; 95% confidence interval [CI], -2.37 to -0.26; P = 0.015) and reduced eGFR (per 10 ml/min/1.73 m2; β = -0.32; 95% CI, -0.50 to -0.13; P = 0.001) were associated with thinner average peripapillary RNFL. Presence of CKD (β = -1.63; 95% CI, -2.42 to -0.84) and reduced eGFR (per 10 ml/min/1.73 m2; β = -0.30; 95% CI, -0.44 to -0.16) were consistently associated with thinner GCIPL in SEED (all P < 0.001). In UKBB, after adjusting for the above-mentioned covariates (except ethnicity), reduced eGFR (per 10 ml/min/1.73 m2; β = -0.06; 95% CI, -0.10 to -0.01; P = 0.008) was associated with thinner macular RNFL and CKD (β = -0.62; 95% CI, -1.16 to -0.08; P = 0.024) was associated with thinner average GCIPL. Conclusion We consistently observed associations between CKD and thinning of RNFL and GCIPL across Asian and White populations' eyes. These findings further suggest that compromised kidney function is associated with RNFL and GCIPL thinning. Financial Disclosures The author(s) have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Shivani Majithia
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | | | - Miao Li Chee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Marco Yu
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Zhi Da Soh
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Sahil Thakur
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Raghavan Lavanya
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Tyler Hyungtaek Rim
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Simon Nusinovici
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Victor Koh
- Centre for Innovation & Precision Eye Health, Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Department of Ophthalmology, National University Hospital, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Centre for Innovation & Precision Eye Health, Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yih-Chung Tham
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Ophthalmology & Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore
- Centre for Innovation & Precision Eye Health, Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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Kour V, Swain J, Singh J, Singh H, Kour H. A Review on Diabetic Retinopathy. Curr Diabetes Rev 2024; 20:e201023222418. [PMID: 37867267 DOI: 10.2174/0115733998253672231011161400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 07/08/2023] [Accepted: 08/23/2023] [Indexed: 10/24/2023]
Abstract
Diabetic retinopathy is a well-recognised microvascular complication of diabetes and is among the leading cause of blindness all over the world. Over the last decade, there have been advances in the diagnosis of diabetic retinopathy and diabetic macular edema. At the same time, newer therapies for the management of diabetic retinopathy have evolved. As a result of these advances, a decline in severe vision loss due to diabetes has been witnessed in some developing countries. However, there is a steady increase in the number of people affected with diabetes, and is expected to rise further in the coming years. Therefore, it is prudent to identify diabetic retinopathy, and timely intervention is needed to decrease the burden of severe vision loss. An effort has been made to review all the existing knowledge regarding diabetic retinopathy in this article and summarize the present treatment options for diabetic retinopathy.
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Affiliation(s)
- Vijender Kour
- Consultant Ophthalmology, Department of Ophthalmology, Sub District Hospital, Tral, Pulwama, India
| | - Jayshree Swain
- Department of Endocrinology, IMS and Sum Hospital, Siksha O Anusandhan (SOA) University, Bhubaneswar, India
| | - Jaspreet Singh
- Department of Endocrinology, IMS and Sum Hospital, Siksha O Anusandhan (SOA) University, Bhubaneswar, India
| | - Hershdeep Singh
- Consultant Neurosurgeon, Department of Neurosurgery, Fortis Ludhiana, Bhubaneswar, India
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Farrah TE, Pugh D, Chapman FA, Godden E, Balmforth C, Oniscu GC, Webb DJ, Dhillon B, Dear JW, Bailey MA, Gallacher PJ, Dhaun N. Choroidal and retinal thinning in chronic kidney disease independently associate with eGFR decline and are modifiable with treatment. Nat Commun 2023; 14:7720. [PMID: 38052813 DOI: 10.1038/s41467-023-43125-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Accepted: 11/01/2023] [Indexed: 12/07/2023] Open
Abstract
In patients with chronic kidney disease (CKD), there is an unmet need for novel biomarkers that reliably track kidney injury, demonstrate treatment-response, and predict outcomes. Here, we investigate the potential of retinal optical coherence tomography (OCT) to achieve these ends in a series of prospective studies of patients with pre-dialysis CKD (including those with a kidney transplant), patients with kidney failure undergoing kidney transplantation, living kidney donors, and healthy volunteers. Compared to health, we observe similar retinal thinning and reduced macular volume in patients with CKD and in those with a kidney transplant. However, the choroidal thinning observed in CKD is not seen in patients with a kidney transplant whose choroids resemble those of healthy volunteers. In CKD, the degree of choroidal thinning relates to falling eGFR and extent of kidney scarring. Following kidney transplantation, choroidal thickness increases rapidly (~10%) and is maintained over 1-year, whereas gradual choroidal thinning is seen during the 12 months following kidney donation. In patients with CKD, retinal and choroidal thickness independently associate with eGFR decline over 2 years. These observations highlight the potential for retinal OCT to act as a non-invasive monitoring and prognostic biomarker of kidney injury.
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Affiliation(s)
- Tariq E Farrah
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Dan Pugh
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Fiona A Chapman
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Emily Godden
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Craig Balmforth
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Gabriel C Oniscu
- Edinburgh Transplant Centre, Royal Infirmary of Edinburgh, Edinburgh, UK
- Transplant Division, Karolinska Institutet Stockholm, Stockholm, Sweden
| | - David J Webb
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Baljean Dhillon
- Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, UK
- Princess Alexandra Eye Pavilion, Edinburgh, UK
| | - James W Dear
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Matthew A Bailey
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Peter J Gallacher
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Neeraj Dhaun
- Edinburgh Kidney, University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.
- Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK.
- Edinburgh Transplant Centre, Royal Infirmary of Edinburgh, Edinburgh, UK.
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Duan J, Liu D, Zhao Z, Liang L, Pan S, Tian F, Yu P, Li G, Liu Z. Short-term duration of diabetic retinopathy as a predictor for development of diabetic kidney disease. J Transl Int Med 2023; 11:449-458. [PMID: 38130638 PMCID: PMC10732346 DOI: 10.2478/jtim-2022-0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023] Open
Abstract
Background Diabetic retinopathy (DR) is a risk factor for diabetic kidney disease (DKD). Whether the duration, especially the short-term duration, of DR is associated with the development and progression of DKD remains unclear. Materials and Methods A retrospective study and two-sample Mendelian randomization (MR) analysis were conducted. Kidney disease was defined by the urinary albumin-to-creatinine ratio (ACR) and the estimated glomerular filtration rate (eGFR). DR was diagnosed by an expert ophthalmologist by using a digital fundus camera. Binary and ordinal logistic regression analyses were performed. A restricted cubic spline was utilized to detect nonlinear associations. Summary statistics for DR- and DKD-associated single-nuclear polymorphisms (SNPs) were extracted from the FinnGen and the UK Biobank consortia. Results A total of 2674 patients with type 2 diabetes mellitus (T2DM) and type 2 diabetic kidney disease (T2DKD) were included. The prevalence and mean duration of DR increased with elevation of ACR and decline in eGFR. Renal function was significantly reduced in patients with DR in the fifth year of life. Binary and ordinal logistic regression showed that each 1-year increase in DR duration was associated with a 19% risk increase in the development of DKD, 16% in the elevation of ACR, and 21% in the decline of renal function. MR estimates indicated that DR was causally associated with DKD development, with an odds ratio of 2.89. Conclusions DR and the duration of DR were independent risk factors for the development and progression of DKD. The short-term duration of DR may be associated with DKD development. DR had a statistically significant effect on DKD.
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Affiliation(s)
- Jiayu Duan
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
- Henan Province Research Center for Kidney Disease, Zhengzhou450052, Henan Province, China
| | - Dongwei Liu
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
- Henan Province Research Center for Kidney Disease, Zhengzhou450052, Henan Province, China
| | - Zihao Zhao
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- Henan Province Research Center for Kidney Disease, Zhengzhou450052, Henan Province, China
| | - Lulu Liang
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
| | - Shaokang Pan
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
| | - Fei Tian
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
| | - Pei Yu
- Henan Province Research Center for Kidney Disease, Zhengzhou450052, Henan Province, China
| | - Guangpu Li
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
| | - Zhangsuo Liu
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou450052, Henan Province, China
- TCM-Integrated Department of Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou450052, Henan Province, China
- Henan Province Research Center for Kidney Disease, Zhengzhou450052, Henan Province, China
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26
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Isık B, Süleymanzade M, Cengiz M, Yavuzer S, Islamoglu MS, Uysal BB, Harmankaya NO, Ersoz MG. Choroidal structural changes in patients with early diabetic nephropathy. Photodiagnosis Photodyn Ther 2023; 44:103772. [PMID: 37690616 DOI: 10.1016/j.pdpdt.2023.103772] [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: 05/27/2023] [Revised: 08/23/2023] [Accepted: 08/25/2023] [Indexed: 09/12/2023]
Abstract
PURPOSE To determine alterations of the choroidal thickness (CT) and the choroidal vascularity index (CVI) in patients with glomerular hyperfiltration, a marker of early diabetic nephropathy (DN). METHODS Twenty-two patients with type 2 diabetes (T2D) with glomerular hyperfiltration (early DN group) and 28 patients with T2D without DN (NDN group) were included in the study. Patients with diabetic retinopathy were excluded. Parameters including subfoveal CT, the subfoveal choroidal vascularity index (CVI), and total CVI were measured using spectral-domain enhanced depth imaging optical coherence tomography method. RESULTS The early DN group included 22 patients and the NDN group comprised 28 patients. The groups were similar in terms of age and sex (p>0.05). The CT values were statistically significantly lower in the early DN group than in the NDN group (p < 0.001). There was no significant difference between the early DN group and the NDN group in terms of total and subfoveal CVI (p>0.05). CONCLUSION The choroidal thickness decreased in patients with T2D with glomerular hyperfiltration, but there were no differences in CVI when they were compared with patients with T2D without DN.
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Affiliation(s)
- Burcu Isık
- Istinye University Medical Faculty, Ophtalmology Department, Istanbul, Turkey
| | | | - Mahir Cengiz
- Istanbul Aydın University Medical Faculty, Internal Medicine Department, Istanbul, Turkey
| | - Serap Yavuzer
- Istanbul Aydın University Medical Faculty, Internal Medicine Department, Istanbul, Turkey
| | - Mehmet Sami Islamoglu
- Istanbul Aydın University Medical Faculty, Internal Medicine Department, Istanbul, Turkey
| | - Betül Börkü Uysal
- Biruni University Hospital, Internal Medicine Department, Istanbul, Turkey
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27
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Yen FS, Wei JCC, Yu TS, Hung YT, Hsu CC, Hwu CM. Sodium-Glucose Cotransporter 2 Inhibitors and Risk of Retinopathy in Patients With Type 2 Diabetes. JAMA Netw Open 2023; 6:e2348431. [PMID: 38117497 PMCID: PMC10733799 DOI: 10.1001/jamanetworkopen.2023.48431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 10/25/2023] [Indexed: 12/21/2023] Open
Abstract
Importance Diabetic nephropathy and diabetic retinopathy share many similarities in pathophysiological processes. Preclinical studies have shown that sodium-glucose cotransporter 2 inhibitors (SGLT2is) have a protective role in the risk of diabetic retinopathy. Objective To compare the risk of sight-threatening retinopathy associated with SGLT2is and other second-line glucose-lowering medications (including pioglitazone, sulfonylureas, and dipeptidyl peptidase-4 inhibitors [DPP-4is]) in patients with type 2 diabetes (T2D). Design, Setting, and Participants This cohort study in Taiwan applied a new-user and active-comparator design. Patient demographic and clinical data were obtained from the National Health Insurance Research Database. Adult patients with newly diagnosed T2D from January 1, 2009, to December 31, 2019, were recruited and followed up until December 31, 2020. Propensity score matching was used to identify pairs of patients treated with SGLT2i vs DPP-4i, SGLT2i vs pioglitazone, and SGLT2i vs sulfonylurea from January 1, 2016, to December 31, 2019. Data were analyzed between August 18, 2022, and May 5, 2023. Exposures Treatment with SGLT2i, DPP-4i, pioglitazone, and sulfonylureas starting on January 1, 2016. Main Outcomes and Measures The main outcome was sight-threatening retinopathy in participants. Cox proportional hazards regression models were used to assess relative hazards of sight-threatening retinopathy between the matched case and control groups. Results A total of 3 544 383 patients with newly diagnosed T2D were identified. After 1:1 propensity score matching, 65 930 pairs of patients treated with SGLT2i vs DPP-4i, 93 760 pairs treated with SGLT2i vs pioglitazone, and 42 121 pairs treated with SGLT2i vs sulfonylurea were identified. These matched patients included 236 574 males (58.6%), with a mean (SD) age of 56.9 (11.8) years. In the matched cohorts, SGLT2i had a significantly lower risk of sight-threatening retinopathy than DPP-4i (adjusted hazard ratio [AHR], 0.57; 95% CI, 0.51-0.63), pioglitazone (AHR, 0.75; 95% CI, 0.69-0.81), and sulfonylureas (AHR, 0.62; 95% CI, 0.53-0.71). The Kaplan-Meier curves showed that SGLT2i was associated with a significantly lower cumulative incidence of sight-threatening retinopathy than DPP-4i (3.52 vs 6.13; P < .001), pioglitazone (4.32 vs 5.76; P < .001), and sulfonylureas (2.94 vs 4.67; P < .001). Conclusions and Relevance This cohort study found that SGLT2i was associated with a lower risk of sight-threatening retinopathy compared with DPP-4i, pioglitazone, and sulfonylureas. This finding suggests that SGLT2i may play a role not only in reduced risk of diabetic nephropathy but also in the slow progression of diabetic retinopathy in patients with T2D.
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Affiliation(s)
| | - James Cheng-Chung Wei
- Department of Allergy, Immunology and Rheumatology, Chung Shan Medical University Hospital, Taichung City, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung City, Taiwan
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
| | - Teng-Shun Yu
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Yu-Tung Hung
- Management Office for Health Data, China Medical University Hospital, Taichung, Taiwan
- College of Medicine, China Medical University, Taichung, Taiwan
| | - Chih-Cheng Hsu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Department of Health Services Administration, China Medical University, Taichung, Taiwan
- Department of Family Medicine, Min-Sheng General Hospital, Taoyuan, Taiwan
- National Center for Geriatrics and Welfare Research, National Health Research Institutes, Yunlin County, Taiwan
| | - Chii-Min Hwu
- Section of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
- Faculty of Medicine, National Yang-Ming Chiao Tung University School of Medicine, Taipei, Taiwan
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Lim ZW, Chee ML, Soh ZD, Majithia S, Sahil T, Tan ST, Sabanayagam C, Wong TY, Cheng CY, Tham YC. Six-Year Incidence of Visual Impairment in a Multiethnic Asian Population: The Singapore Epidemiology of Eye Diseases Study. OPHTHALMOLOGY SCIENCE 2023; 3:100392. [PMID: 38025163 PMCID: PMC10630666 DOI: 10.1016/j.xops.2023.100392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 08/23/2023] [Accepted: 08/28/2023] [Indexed: 12/01/2023]
Abstract
Purpose To examine the 6-year incidence of visual impairment (VI) and identify risk factors associated with VI in a multiethnic Asian population. Design Prospective, population-based, cohort study. Participants Adults aged ≥ 40 years were recruited from the Singapore Epidemiology of Eye Diseases cohort study at baseline. Eligible subjects were re-examined after 6 years. Subjects included in the final analysis had a mean age of 56.1 ± 8.9 years, and 2801 (50.5%) were female. Methods All participants underwent standardized examination and interviewer-administered questionnaire at baseline. Incidences were standardized to the Singapore Population Census 2010. A Poisson binomial regression model was used to evaluate the associations between baseline factors and incident presenting VI. Main Outcome Measures Incident presenting VI was assessed at the 6-year follow-up visit. Visual impairment (presenting visual acuity < 20/40), low vision (presenting visual acuity < 20/40 but ≥ 20/200), and blindness (presenting visual acuity < 20/200) were defined based on United States definition. Results A total of 5551 subjects (2188 Chinese, 1837 Indians, and 1526 Malays) were evaluated, of whom 514 developed incident presenting VI over 6 years. Malays had a higher incidence of low vision and blindness (13.0%; 0.6%) than Indians (7.0%; 0.1%) and Chinese (7.7%; 0.2%). Among Malay individuals with VI at baseline, 52.8% remained visually impaired after 6 years, which was considerably higher than Chinese (32.4%) and Indians (37.2%). Older age (per decade; relative risk [RR] = 1.59), a history of cardiovascular disease (RR = 1.38), current smoking (RR = 1.31), smaller housing type (1- to 2-room public flat; RR = 2.01), and no formal education (RR = 1.63) at baseline were associated with a higher risk of incident VI (all P ≤ 0.027). Older age (> 60 years) contributed the highest population attributable risk to incident VI (27.1%), followed by lower monthly income (Singapore dollar < $2000; 26.4%) and smaller housing type (24.7%). Overall, undercorrected refractive error (49.1%) and cataract (82.6%) were leading causes for low vision and blindness, respectively. This was consistently observed across the 3 ethnicities. Conclusions In this multiethnic Asian population, Malays had a higher VI incidence compared to Indians and Chinese. Leading causes of VI are mostly treatable, suggesting that more efforts are needed to further mitigate preventable visual loss. Financial Disclosures The authors have no proprietary or commercial interest in any materials discussed in this article.
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Affiliation(s)
- Zhi Wei Lim
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Miao-Li Chee
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Zhi Da Soh
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Shivani Majithia
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Thakur Sahil
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - See Teng Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Eye Academic Clinical Program, Duke-NUS Medical School, Singapore
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Tsinghua Medicine, Tsinghua University, Beijing, China
- School of Clinical Medicine, Beijing Tsinghua Changgung Hospital, Beijing, China
| | - Ching-Yu Cheng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Eye Academic Clinical Program, Duke-NUS Medical School, Singapore
- Centre for Innovation and Precision Eye Health & Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yih-Chung Tham
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore
- Eye Academic Clinical Program, Duke-NUS Medical School, Singapore
- Centre for Innovation and Precision Eye Health & Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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29
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An S, Vaghefi E, Yang S, Xie L, Squirrell D. Examination of alternative eGFR definitions on the performance of deep learning models for detection of chronic kidney disease from fundus photographs. PLoS One 2023; 18:e0295073. [PMID: 38032977 PMCID: PMC10688656 DOI: 10.1371/journal.pone.0295073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023] Open
Abstract
Deep learning (DL) models have shown promise in detecting chronic kidney disease (CKD) from fundus photographs. However, previous studies have utilized a serum creatinine-only estimated glomerular rate (eGFR) equation to measure kidney function despite the development of more up-to-date methods. In this study, we developed two sets of DL models using fundus images from the UK Biobank to ascertain the effects of using a creatinine and cystatin-C eGFR equation over the baseline creatinine-only eGFR equation on fundus image-based DL CKD predictors. Our results show that a creatinine and cystatin-C eGFR significantly improved classification performance over the baseline creatinine-only eGFR when the models were evaluated conventionally. However, these differences were no longer significant when the models were assessed on clinical labels based on ICD10. Furthermore, we also observed variations in model performance and systemic condition incidence between our study and the ones conducted previously. We hypothesize that limitations in existing eGFR equations and the paucity of retinal features uniquely indicative of CKD may contribute to these inconsistencies. These findings emphasize the need for developing more transparent models to facilitate a better understanding of the mechanisms underpinning the ability of DL models to detect CKD from fundus images.
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Affiliation(s)
- Songyang An
- School of Optometry and Vision Science, The University of Auckland, Auckland, New Zealand
- Toku Eyes Limited NZ, Auckland, New Zealand
| | - Ehsan Vaghefi
- School of Optometry and Vision Science, The University of Auckland, Auckland, New Zealand
- Toku Eyes Limited NZ, Auckland, New Zealand
| | - Song Yang
- Toku Eyes Limited NZ, Auckland, New Zealand
| | - Li Xie
- Toku Eyes Limited NZ, Auckland, New Zealand
| | - David Squirrell
- Toku Eyes Limited NZ, Auckland, New Zealand
- Auckland District Health Board, Auckland, New Zealand
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30
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Betzler BK, Chee EYL, He F, Lim CC, Ho J, Hamzah H, Tan NC, Liew G, McKay GJ, Hogg RE, Young IS, Cheng CY, Lim SC, Lee AY, Wong TY, Lee ML, Hsu W, Tan GSW, Sabanayagam C. Deep learning algorithms to detect diabetic kidney disease from retinal photographs in multiethnic populations with diabetes. J Am Med Inform Assoc 2023; 30:1904-1914. [PMID: 37659103 PMCID: PMC10654858 DOI: 10.1093/jamia/ocad179] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/04/2023] Open
Abstract
OBJECTIVE To develop a deep learning algorithm (DLA) to detect diabetic kideny disease (DKD) from retinal photographs of patients with diabetes, and evaluate performance in multiethnic populations. MATERIALS AND METHODS We trained 3 models: (1) image-only; (2) risk factor (RF)-only multivariable logistic regression (LR) model adjusted for age, sex, ethnicity, diabetes duration, HbA1c, systolic blood pressure; (3) hybrid multivariable LR model combining RF data and standardized z-scores from image-only model. Data from Singapore Integrated Diabetic Retinopathy Program (SiDRP) were used to develop (6066 participants with diabetes, primary-care-based) and internally validate (5-fold cross-validation) the models. External testing on 2 independent datasets: (1) Singapore Epidemiology of Eye Diseases (SEED) study (1885 participants with diabetes, population-based); (2) Singapore Macroangiopathy and Microvascular Reactivity in Type 2 Diabetes (SMART2D) (439 participants with diabetes, cross-sectional) in Singapore. Supplementary external testing on 2 Caucasian cohorts: (3) Australian Eye and Heart Study (AHES) (460 participants with diabetes, cross-sectional) and (4) Northern Ireland Cohort for the Longitudinal Study of Ageing (NICOLA) (265 participants with diabetes, cross-sectional). RESULTS In SiDRP validation, area under the curve (AUC) was 0.826(95% CI 0.818-0.833) for image-only, 0.847(0.840-0.854) for RF-only, and 0.866(0.859-0.872) for hybrid. Estimates with SEED were 0.764(0.743-0.785) for image-only, 0.802(0.783-0.822) for RF-only, and 0.828(0.810-0.846) for hybrid. In SMART2D, AUC was 0.726(0.686-0.765) for image-only, 0.701(0.660-0.741) in RF-only, 0.761(0.724-0.797) for hybrid. DISCUSSION AND CONCLUSION There is potential for DLA using retinal images as a screening adjunct for DKD among individuals with diabetes. This can value-add to existing DLA systems which diagnose diabetic retinopathy from retinal images, facilitating primary screening for DKD.
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Affiliation(s)
- Bjorn Kaijun Betzler
- Yong Loo Lin School of Medicine, National University of Singapore, 117597, Singapore
| | - Evelyn Yi Lyn Chee
- School of Computing, National University of Singapore, 117417, Singapore
| | - Feng He
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
| | - Cynthia Ciwei Lim
- Department of Renal Medicine, Singapore General Hospital, 168753, Singapore
| | - Jinyi Ho
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
| | - Haslina Hamzah
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
| | - Ngiap Chuan Tan
- SingHealth Polyclinics, Singapore Health Services, 168582, Singapore
| | - Gerald Liew
- Westmead Institute for Medical Research, University of Sydney, NSW 2145, Australia
| | - Gareth J McKay
- Centre for Public Health, Queen’s University Belfast, Belfast BT12 6BA, United Kingdom
| | - Ruth E Hogg
- Centre for Public Health, Queen’s University Belfast, Belfast BT12 6BA, United Kingdom
| | - Ian S Young
- Centre for Public Health, Queen’s University Belfast, Belfast BT12 6BA, United Kingdom
| | - Ching-Yu Cheng
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
- Ophthalmology and Visual Science Academic Clinical Program, Duke-NUS Medical School, 169857, Singapore
| | - Su Chi Lim
- Khoo Teck Puat Hospital, 768828, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore, 308232, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, 117549, Singapore
| | - Aaron Y Lee
- Department of Ophthalmology, University of Washington, Seattle, WA 98104, United States
| | - Tien Yin Wong
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
- Ophthalmology and Visual Science Academic Clinical Program, Duke-NUS Medical School, 169857, Singapore
| | - Mong Li Lee
- School of Computing, National University of Singapore, 117417, Singapore
| | - Wynne Hsu
- School of Computing, National University of Singapore, 117417, Singapore
| | - Gavin Siew Wei Tan
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
- Ophthalmology and Visual Science Academic Clinical Program, Duke-NUS Medical School, 169857, Singapore
| | - Charumathi Sabanayagam
- Singapore Eye Research Institute, Singapore National Eye Centre, 168751, Singapore
- Ophthalmology and Visual Science Academic Clinical Program, Duke-NUS Medical School, 169857, Singapore
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Mustafar R, Hishamuddin KAM, Mohd R, Kamaruzaman L, Halim WHWA, Hsien YM, Sze TK, Zaki WMDW, Ali A, Bain A. Retinal changes and cardiac biomarker assessment in relation to chronic kidney disease: a single centre study. BMC Nephrol 2023; 24:338. [PMID: 37957551 PMCID: PMC10644488 DOI: 10.1186/s12882-023-03386-w] [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: 03/10/2023] [Accepted: 11/01/2023] [Indexed: 11/15/2023] Open
Abstract
BACKGROUND The prevalence of chronic kidney disease (CKD) is rising in Malaysia. Early detection is necessary to prevent disease progression, especially in terms of cardiovascular (CV) risk, the main cause of death in end-stage renal disease (ESRD). Retinal changes have proven to be a good predictor of CKD whereas cardiac biomarkers are useful in cardiovascular risk stratification. We aimed to demonstrate the correlation between retinal changes and cardiac biomarkers with CKD. METHODS This single-centre cross-sectional study was conducted among patients with CKD stages 3, 4, and 5 (not on dialysis) from the Nephrology Clinic, Universiti Kebangsaan Malaysia Medical Centre. A total of 84 patients were recruited with an even distribution across all three stages. They underwent fundus photography where images were analysed for vessel calibre (central retinal venular equivalent (CRVE), central retinal arterial equivalent (CRAE), and tortuosity indices. Optical coherence tomography was used to measure macular volume. Blood samples were sent for laboratory measurement of high-sensitivity C-reactive protein (hs-CRP) and asymmetric dimethylarginine (ADMA). These parameters were analysed in relation to CKD. RESULTS The mean age was 58.8 ± 11.7 years, with 52.4% male and 47.6% female patients. Among them, 64.3% were diabetics. Retinal vessel tortuosity (r = -0.220, p-value = 0.044) had a negative correlation with the estimated glomerular filtration rate (eGFR). CRVE showed a positive correlation with proteinuria (r = 0.342, p = 0.001) but negative correlation with eGFR (r = -0.236, p = 0.031). Hs-CRP positively correlated with proteinuria (r = 0.313, p = 0.04) and negatively correlated with eGFR (r = -0.370, p = 0.001). Diabetic patients had a higher CRVE compared to non-diabetic patients (p = 0.02). History of ischaemic heart disease was associated with a smaller macula volume (p = 0.038). Male gender (r2 = 0.066, p = 0.031) and HbA1c had a positive influence (r2 = 0.066, p = 0.047) on retinal vessel tortuosity. There was a positive influence of age (r2 = 0.183, p = 0.012) and hs-CRP (r2 = 0.183, p = 0.045) on CRVE. As for macula volume, it negatively correlated with diabetes (r2 = 0.015, p = 0.040) and positively correlated with smoking (r2 = 0.015, p = 0.012). CONCLUSION Our study showed that eGFR value affects retinal vessel tortuosity, CRVE and hs-CRP. These parameters bear potential to be used as non-invasive tools in assessing CKD. However, only macula volume may be associated with CVD risk among the CKD population.
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Affiliation(s)
- Ruslinda Mustafar
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Rozita Mohd
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Lydia Kamaruzaman
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | | | - Yong Meng Hsien
- Department of Ophthalmology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Tan Kuan Sze
- Department of Ophthalmology, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Wan Mimi Diyana Wan Zaki
- Department of Electrical, Electronic and Systems Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, Malaysia
| | - Aziah Ali
- Faculty of Computing and Informatics, Multimedia University, Cyberjaya, Malaysia
| | - Arbaiyah Bain
- Department of Medicine, Faculty of Medicine, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
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Burke J, Pugh D, Farrah T, Hamid C, Godden E, MacGillivray TJ, Dhaun N, Baillie JK, King S, MacCormick IJC. Evaluation of an Automated Choroid Segmentation Algorithm in a Longitudinal Kidney Donor and Recipient Cohort. Transl Vis Sci Technol 2023; 12:19. [PMID: 37975844 PMCID: PMC10668611 DOI: 10.1167/tvst.12.11.19] [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: 03/01/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023] Open
Abstract
Purpose To evaluate the performance of an automated choroid segmentation algorithm in optical coherence tomography (OCT) data using a longitudinal kidney donor and recipient cohort. Methods We assessed 22 donors and 23 patients requiring renal transplantation over up to 1 year posttransplant. We measured choroidal thickness (CT) and area and compared our automated CT measurements to manual ones at the same locations. We estimated associations between choroidal measurements and markers of renal function (estimated glomerular filtration rate [eGFR], serum creatinine, and urea) using correlation and linear mixed-effects (LME) modeling. Results There was good agreement between manual and automated CT. Automated measures were more precise because of smaller measurement error over time. External adjudication of major discrepancies was in favor of automated measures. Significant differences were observed in the choroid pre- and posttransplant in both cohorts, and LME modeling revealed significant linear associations observed between choroidal measures and renal function in recipients. Significant associations were mostly stronger with automated CT (eGFR, P < 0.001; creatinine, P = 0.004; urea, P = 0.04) compared to manual CT (eGFR, P = 0.002; creatinine, P = 0.01; urea, P = 0.03). Conclusions Our automated approach has greater precision than human-performed manual measurements, which may explain stronger associations with renal function compared to manual measurements. To improve detection of meaningful associations with clinical endpoints in longitudinal studies of OCT, reducing measurement error should be a priority, and automated measurements help achieve this. Translational Relevance We introduce a novel choroid segmentation algorithm that can replace manual grading for studying the choroid in renal disease and other clinical conditions.
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Affiliation(s)
- Jamie Burke
- School of Mathematics, University of Edinburgh, College of Science and Engineering, Edinburgh, UK
| | - Dan Pugh
- University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Tariq Farrah
- University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Charlene Hamid
- Imaging Facility, University of Edinburgh, The Queen's Medical Research Institute, Edinburgh, UK
| | - Emily Godden
- Emergency Department, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - Neeraj Dhaun
- University/BHF Centre for Cardiovascular Science, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - J. Kenneth Baillie
- Deanery of Clinical Sciences, University of Edinburgh, College of Medicine and Veterinary Medicine, Edinburgh, UK
| | - Stuart King
- School of Mathematics, University of Edinburgh, College of Science and Engineering, Edinburgh, UK
| | - Ian J. C. MacCormick
- Centre for Inflammation Research, The Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
- Institute for Adaptive and Neural Computation, School of Informatics, University of Edinburgh, Edinburgh, UK
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Fang J, Luo C, Zhang D, He Q, Liu L. Correlation between diabetic retinopathy and diabetic nephropathy: a two-sample Mendelian randomization study. Front Endocrinol (Lausanne) 2023; 14:1265711. [PMID: 38027162 PMCID: PMC10646564 DOI: 10.3389/fendo.2023.1265711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Rationale & objective A causal relationship concerning diabetic retinopathy (DR) and diabetic nephropathy (DN) has been studied in many epidemiological observational studies. We conducted a two-sample mendelian randomization study from the perspective of genetics to assess these associations. Methods 20 independent single nucleotide polymorphisms (SNPs) associated with diabetic retinopathy were selected from the FinnGen consortium. Summary-level data for diabetic nephropathy were obtained from the publicly available genome-wide association studies (GWAS) database, FinnGen and CKDGen consortium. Inverse variance weighted (IVW) was selected as the primary analysis. MR-Egger, weighted median (WM), simple mode and weighted mode were used as complementary methods to examine causality. Additionally, sensitivity analyses including Cochran's Q test, MR-Egger, MR-Pleiotropy Residual Sum and Outlier (MR-PRESSO), and leave-one-out analyses were conducted to guarantee the accuracy and robustness of our MR analysis. Results Our current study demonstrated positive associations of genetically predicted diabetic retinopathy with diabetic nephropathy (OR=1.32; P=3.72E-11), type 1 diabetes with renal complications (OR=1.96; P= 7.11E-11), and type 2 diabetes with renal complications (OR=1.26, P=3.58E-04). Further subtype analysis and multivariate mendelian randomization (MVMR) also reached the same conclusion. A significant casualty with DN was demonstrated both in non-proliferative DR (OR=1.07, P=0.000396) and proliferative DR (OR=1.67, P=3.699068E-14). All the findings were robust across several sensitivity analyses. Conclusion Consistent with previous clinical studies, our findings revealed a positive correlation between DR and DN, providing genetic evidence for the non-invasive nature of DR in predicting DN.
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Affiliation(s)
- Jiaxi Fang
- Urology & Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
- Department of Ultrasound, Taizhou Central Hospital (Taizhou University, Hospital), Taizhou, Zhejiang, China
| | - Chuxuan Luo
- Department of Nephrology, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Taizhou, Zhejiang, China
| | - Di Zhang
- Urology & Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
| | - Qiang He
- Department of Nephrology, The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Traditional Chinese Medicine), Hangzhou, Zhejiang, China
| | - Lin Liu
- Urology & Nephrology Center, Department of Nephrology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang, China
- Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang, China
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Xu Y, Xiang Z, E W, Lang Y, Huang S, Qin W, Yang J, Chen Z, Liu Z. Single-cell transcriptomes reveal a molecular link between diabetic kidney and retinal lesions. Commun Biol 2023; 6:912. [PMID: 37670124 PMCID: PMC10480496 DOI: 10.1038/s42003-023-05300-4] [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: 11/18/2022] [Accepted: 08/29/2023] [Indexed: 09/07/2023] Open
Abstract
The occurrence of diabetic nephropathy (DN) and diabetic retinopathy (DR) are closely associated in patients with diabetes. However, the cellular and molecular linkage of DN and DR has not been elucidated, and further revelations are needed to improve mutual prognostic decisions and management. Here, we generate and integrate single-cell RNA sequencing profiles of kidney and retina to explore the cellular and molecular association of kidney and retina in both physiological and pathological conditions. We find renal mesangial cells and retinal pericytes share molecular features and undergo similar molecular transitions under diabetes. Furthermore, we uncover that chemokine regulation shared by the two cell types is critical for the co-occurrence of DN and DR, and the chemokine score can be used for the prognosis of DN complicated with DR. These findings shed light on the mechanism of the co-occurrence of DN and DR and could improve the prevention and treatments of diabetic microvascular complications.
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Affiliation(s)
- Ying Xu
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Zhidan Xiang
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Weigao E
- Center for Stem Cell and Regenerative Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yue Lang
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Sijia Huang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, School of Medicine, Southeast University, Nanjing, China
| | - Weisong Qin
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Jingping Yang
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
- Medical School of Nanjing University, Nanjing, China.
| | - Zhaohong Chen
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, China.
| | - Zhihong Liu
- National Clinical Research Center of Kidney Diseases, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, 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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Huang Y, Yuan Y, Seth I, Bulloch G, Cheng W, Chen Y, Shang X, Kiburg K, Zhu Z, Wang W. Optic Nerve Head Capillary Network Quantified by Optical Coherence Tomography Angiography and Decline of Renal Function in Type 2 Diabetes: A Three-Year Prospective Study. Am J Ophthalmol 2023; 253:96-105. [PMID: 37059318 DOI: 10.1016/j.ajo.2023.04.003] [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: 10/07/2022] [Revised: 12/07/2022] [Accepted: 04/05/2023] [Indexed: 04/16/2023]
Abstract
PURPOSE To assess the association of optic capillary perfusion with decline in the estimated glomerular filtration rate (eGFR) and to clarify its added value. DESIGN Prospective, observational cohort study. METHODS Patients with type 2 diabetes mellitus without diabetic retinopathy (non-DR) underwent standardized examinations annually during a 3-year follow-up period. The superficial capillary plexus (SCP), deep capillary plexus (DCP), and radial peripapillary plexus (RPC) of optic nerve head (ONH) were visualized using optical coherence tomography angiography (OCTA), and the perfusion density (PD) and vascular density were quantified for the whole image and circumpapillary regions of the ONH. The lowest tercile of annual eGFR slope was defined as the rapidly progressive group, and the highest tercile was considered the stable group. RESULTS A total of 906 patients were included for 3-mm × 3-mm OCTA analysis. After adjusting for other confounders, each 1% decrease in baseline whole en face PD in SCP and RPC was associated with accelerated rates of decline in eGFR by -0.53 mL/min/1.73/m2 per year (95% confidence interval [CI] -0.17 to -0.90; P = .004) and -0.60 mL/min/1.73/m2 per year (95% CI 0.28-0.91), respectively. Adding both whole-image PD in SCP and whole-image PD in RPC to the conventional model increased the area under the curve from 0.696 (95% CI 0.654-0.737) to 0.725 (95% CI 0.685-0.765; P = .031). Another cohort of 400 eligible patients with 6-mm × 6 mm OCTA imaging validated the significant associations between ONH perfusion and rate of eGFR decline (P < .05). CONCLUSIONS Reduced capillary perfusion of ONH in patients with type 2 diabetes mellitus is associated with a greater eGFR decline, and it has additional predictive value for detecting an early stage and progression.
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Affiliation(s)
- Yining Huang
- From Nanshan School (Y.H.), Guangzhou Medical University, Guangzhou, China
| | - Yixiong Yuan
- State Key Laboratory of Ophthalmology (Y.Y., W.C., W.W.), Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Ishith Seth
- Centre for Eye Research Australia (I.S., G.B., X.S., K.K., Z.Z.), Royal Victorian Eye and Ear Hospital, Melbourne, Australia
| | - Gabriella Bulloch
- Centre for Eye Research Australia (I.S., G.B., X.S., K.K., Z.Z.), Royal Victorian Eye and Ear Hospital, Melbourne, Australia
| | - Weijing Cheng
- State Key Laboratory of Ophthalmology (Y.Y., W.C., W.W.), Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China
| | - Yifan Chen
- John Radcliffe Hospital (Y.C.), Oxford University Hospitals NHS Foundation Trust, Oxford, United Kingdom
| | - Xianwen Shang
- Centre for Eye Research Australia (I.S., G.B., X.S., K.K., Z.Z.), Royal Victorian Eye and Ear Hospital, Melbourne, Australia
| | - Katerina Kiburg
- Centre for Eye Research Australia (I.S., G.B., X.S., K.K., Z.Z.), Royal Victorian Eye and Ear Hospital, Melbourne, Australia
| | - Zhuoting Zhu
- Centre for Eye Research Australia (I.S., G.B., X.S., K.K., Z.Z.), Royal Victorian Eye and Ear Hospital, Melbourne, Australia.
| | - Wei Wang
- State Key Laboratory of Ophthalmology (Y.Y., W.C., W.W.), Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Ophthalmology and Visual Science, Guangdong Provincial Clinical Research Center for Ocular Diseases, Guangzhou, China.
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Stino H, de Llano Pato E, Steiner I, Mahnert N, Pawloff M, Hasun M, Weidinger F, Schmidt-Erfurth U, Pollreisz A. Macular Microvascular Perfusion Status in Hypertensive Patients with Chronic Kidney Disease. J Clin Med 2023; 12:5493. [PMID: 37685559 PMCID: PMC10488526 DOI: 10.3390/jcm12175493] [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: 08/04/2023] [Revised: 08/21/2023] [Accepted: 08/22/2023] [Indexed: 09/10/2023] Open
Abstract
To compare retinal microvascular perfusion between the eyes of hypertensive patients with and without chronic kidney disease (CKD), the vessel density (VD) and fractal dimension (FD) of the superficial (SVP) and deep retinal vascular plexus (DVP) were analyzed on 6 × 6 mm fovea-centered optical coherence tomography angiography (OCTA) images of patients with hypertension. The retina was divided into an inner ring (IR) and outer ring (OR) according to the Early Treatment of Diabetic Retinopathy Study grid. The glomerular filtration rate (GFR) was determined and CKD was diagnosed (GFR < 60 mL/min/1.73 m2). Ninety-six eyes from 52 patients with hypertension were included in this analysis. Twenty patients (n = 37 eyes) were diagnosed with CKD. The mean age was 69 ± 11.7 years and 60.4 ± 9.2 years in the CKD group and in the control group, respectively. The univariate model revealed a significant difference in VD between patients without and with CKD in the superficial IR (0.36 ± 0.03 vs. 0.34 ± 0.04, p = 0.03), the superficial OR (0.35 ± 0.02 vs. 0.33 ± 0.04, p = 0.02), the deep OR (0.24 ± 0.01 vs. 0.23 ± 0.02, p = 0.003), and the FD in the SVP (1.87 ± 0.01 vs. 1.86 ± 0.02, p = 0.02) and DVP (1.83 ± 0.01 vs. 1.82 ± 0.01, p = 0.006). After adjusting for age and sex, these differences did not remain statistically significant. Similar results were observed for the FD in the SVP and DVP. In our cohort, patients with hypertension and CKD did not differ from patients without CKD in regard to microvascular perfusion status in the macular area as assessed using OCTA.
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Affiliation(s)
- Heiko Stino
- Department of Ophthalmology, Medical University of Vienna, 1090 Vienna, Austria
| | | | - Irene Steiner
- Center for Medical Data Science, Institute of Medical Statistics, Medical University of Vienna, 1090 Vienna, Austria
| | - Nikolaus Mahnert
- Department of Ophthalmology, Medical University of Vienna, 1090 Vienna, Austria
| | - Maximilian Pawloff
- Department of Ophthalmology, Medical University of Vienna, 1090 Vienna, Austria
| | - Matthias Hasun
- Department of Cardiology, Clinic Land Strasse, Vienna Healthcare Group, 1030 Vienna, Austria; (M.H.); (F.W.)
| | - Franz Weidinger
- Department of Cardiology, Clinic Land Strasse, Vienna Healthcare Group, 1030 Vienna, Austria; (M.H.); (F.W.)
| | | | - Andreas Pollreisz
- Department of Ophthalmology, Medical University of Vienna, 1090 Vienna, Austria
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Mohammadi M, Yarmohammadi A, Salehi-Abargouei A, Ghasemirad H, Shirvani M, Ghoshouni H. Uric acid and glaucoma: a systematic review and meta-analysis. Front Med (Lausanne) 2023; 10:1159316. [PMID: 37575992 PMCID: PMC10422028 DOI: 10.3389/fmed.2023.1159316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 07/07/2023] [Indexed: 08/15/2023] Open
Abstract
Background Glaucoma, the leading cause of irreversible blindness, is a common disorder that contributes to gradual optic nerve degeneration. The beneficial impacts of uric acid (UA) have been reported in some neurodegenerative conditions such as Parkinson's disease, Alzheimer's disease, and amyotrophic lateral sclerosis. But the results of current studies about the association between serum UA level and glaucoma are conflicting. The present meta-analysis was conducted to provide a better understanding of the association between serum UA level and glaucoma. Methods We searched the databases of PubMed, Scopus, Web of Science, and Google Scholar systematically until November 20, 2022 to identify case-control studies, comparing the serum UA concentrations of the patients with glaucoma and controls. The mean ± standard division difference was used to assess the difference in serum UA concentrations between the glaucoma patients and controls. Results Six studies involving 1,221 glaucoma patients and 1,342 control group were included in the present meta-analysis. This meta-analysis using a random effect model indicated that the mean UA level in glaucoma patients was 0.13 (I2 = 91.92%, 95% CI = -0.42 to 0.68) higher than the controls; however, it was not statistically significant. Conclusions Our findings provide evidence that glaucoma patients have a higher serum UA level compared to the controls, but this difference is not statistically significant. Prospective studies are needed to determine the possible association between increased UA and glaucoma pathogenesis. Systematic review registration https://www.crd.york.ac.uk/prospero/display_record.php?ID=CRD42022364055, identifier: CRD42022364055.
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Affiliation(s)
- Mohammad Mohammadi
- Students' Research and Technology Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- NeuroTRACT Association, Student's Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Amin Salehi-Abargouei
- Research Center for Food Hygiene and Safety, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Yazd Cardiovascular Research Center, Non-communicable Diseases Research Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Nutrition, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Hamidreza Ghasemirad
- Students' Research and Technology Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Mohammad Shirvani
- Geriatric Ophthalmology Research Center, Shahid Sadoughi University of Medical Science, Yazd, Iran
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Ghoshouni
- Students' Research and Technology Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
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Kapatia G, Gupta G, Kapoor U. Oculo-Renal Pathologies- 'Two Sides of the Same Coin'. Indian J Nephrol 2023; 33:317-318. [PMID: 37781559 PMCID: PMC10503573 DOI: 10.4103/ijn.ijn_182_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/01/2022] [Accepted: 08/23/2022] [Indexed: 10/03/2023] Open
Affiliation(s)
- Gargi Kapatia
- Department of Pathology, All India Institute of Medical Sciences, Bathinda, Punjab, India
| | - Gaurav Gupta
- Department of Ophthalmology, Eye Sure Super-Speciality Eye Hospital, Bathinda, Punjab, India
| | - Utkarsh Kapoor
- Department of Pathology, All India Institute of Medical Sciences, Bathinda, Punjab, India
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Feng J, Xie X, Teng Z, Fei W, Zhen Y, Liu J, Yang L, Chen S. Retinal Microvascular Diameters are Associated with Diabetic Kidney Disease in Patients with Type 2 Diabetes Mellitus. Diabetes Metab Syndr Obes 2023; 16:1821-1831. [PMID: 37366485 PMCID: PMC10290843 DOI: 10.2147/dmso.s415667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 06/13/2023] [Indexed: 06/28/2023] Open
Abstract
Objective To investigate the association between retinal microvascular diameters and diabetic kidney disease (DKD) in patients with type 2 diabetes mellitus (T2DM). Methods A total of 690 patients with T2DM were included in this retrospective study. Patients were divided into DKD and non-DKD groups according to urine microalbumin/creatinine ratio and estimated glomerular filtration rate. Retinal microvascular diameters were measured by the automated retinal image analysis system. Multivariate logistic regression analysis and restricted cubic splines were used to assess the relationships between the retinal microvascular diameters and DKD in patients with T2DM. Results Multivariate logistic regression showed that widened diameters of retinal venules and narrowed diameters of retinal arterioles were associated with DKD after adjusting for potential confounding variables. There was a significant linear trend between the diameters of superior temporal retinal venula (P for trend < 0.001, P for non-linearity = 0.080), inferior temporal retinal venula (P for trend < 0.001, P for non-linearity = 0.111) and central retinal venular equivalent (CRVE) (P for trend < 0.001, P for non-linearity = 0.392) and risk of DKD in patients with T2DM. The restricted cubic splines showed that narrowed retinal arteriolar diameters, superior and inferior nasal retinal venulas were associated with the risk of DKD in a non-linear fashion (all P for non-linearity < 0.001). Conclusion Wider retinal venular diameters and narrower retinal arteriolar diameters were associated with an increased risk of DKD in patients with T2DM. Widened retinal venular diameters, especially CRVE, superior and inferior temporal retinal venula, were positively associated with an increased risk of DKD in a linear fashion. In contrast, narrowed retinal arteriolar diameters were associated with the risk of DKD in a non-linear fashion.
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Affiliation(s)
- Jing Feng
- Department of Endocrinology, Hebei Medical University, Shijiazhuang, Hebei Province, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
- Hebei Key Laboratory of Metabolic Disease, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Xiaohua Xie
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Zhenjie Teng
- Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
- Department of Neurology, Hebei Medical University, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Wenjie Fei
- Department of Endocrinology, Hebei Medical University, Shijiazhuang, Hebei Province, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Yunfeng Zhen
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Jingzhen Liu
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Liqun Yang
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
| | - Shuchun Chen
- Department of Endocrinology, Hebei Medical University, Shijiazhuang, Hebei Province, People’s Republic of China
- Department of Endocrinology, Hebei General Hospital, Shijiazhuang, Hebei Province, People’s Republic of China
- Hebei Key Laboratory of Metabolic Disease, Shijiazhuang, Hebei Province, People’s Republic of China
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Joo YS, Rim TH, Koh HB, Yi J, Kim H, Lee G, Kim YA, Kang SW, Kim SS, Park JT. Non-invasive chronic kidney disease risk stratification tool derived from retina-based deep learning and clinical factors. NPJ Digit Med 2023; 6:114. [PMID: 37330576 DOI: 10.1038/s41746-023-00860-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 06/09/2023] [Indexed: 06/19/2023] Open
Abstract
Despite the importance of preventing chronic kidney disease (CKD), predicting high-risk patients who require active intervention is challenging, especially in people with preserved kidney function. In this study, a predictive risk score for CKD (Reti-CKD score) was derived from a deep learning algorithm using retinal photographs. The performance of the Reti-CKD score was verified using two longitudinal cohorts of the UK Biobank and Korean Diabetic Cohort. Validation was done in people with preserved kidney function, excluding individuals with eGFR <90 mL/min/1.73 m2 or proteinuria at baseline. In the UK Biobank, 720/30,477 (2.4%) participants had CKD events during the 10.8-year follow-up period. In the Korean Diabetic Cohort, 206/5014 (4.1%) had CKD events during the 6.1-year follow-up period. When the validation cohorts were divided into quartiles of Reti-CKD score, the hazard ratios for CKD development were 3.68 (95% Confidence Interval [CI], 2.88-4.41) in the UK Biobank and 9.36 (5.26-16.67) in the Korean Diabetic Cohort in the highest quartile compared to the lowest. The Reti-CKD score, compared to eGFR based methods, showed a superior concordance index for predicting CKD incidence, with a delta of 0.020 (95% CI, 0.011-0.029) in the UK Biobank and 0.024 (95% CI, 0.002-0.046) in the Korean Diabetic Cohort. In people with preserved kidney function, the Reti-CKD score effectively stratifies future CKD risk with greater performance than conventional eGFR-based methods.
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Affiliation(s)
- Young Su Joo
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Republic of Korea
- Division of Nephrology, Department of Internal Medicine, Yongin Severance Hospital, Yonsei University College of Medicine, Yongin, Republic of Korea
| | - Tyler Hyungtaek Rim
- Mediwhale Inc, Seoul, Republic of Korea.
- Singapore Eye Research Institute, Singapore National Eye Centre, Singapore, Singapore.
- Ophthalmology and Visual Sciences Academic Clinical Program (Eye ACP), Duke-NUS Medical School, Singapore, Singapore.
| | - Hee Byung Koh
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Republic of Korea
- Department of Internal Medicine, International Saint Mary's Hospital, Catholic Kwandong University, Incheon, Republic of Korea
| | - Joseph Yi
- Albert Einstein College of Medicine, New York, USA
| | | | | | - Young Ah Kim
- Division of Digital Health, Yonsei University Health System, Seoul, Republic of Korea
| | - Shin-Wook Kang
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Republic of Korea
| | - Sung Soo Kim
- Department of Ophthalmology, Institute of Vision Research, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jung Tak Park
- Department of Internal Medicine, College of Medicine, Institute of Kidney Disease Research, Yonsei University, Seoul, Republic of Korea.
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Lahme L, Storp JJ, Marchiori E, Esser E, Eter N, Mihailovic N, Alnawaiseh M. Evaluation of Ocular Perfusion in Patients with End-Stage Renal Disease Receiving Hemodialysis Using Optical Coherence Tomography Angiography. J Clin Med 2023; 12:jcm12113836. [PMID: 37298031 DOI: 10.3390/jcm12113836] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/18/2023] [Accepted: 06/01/2023] [Indexed: 06/12/2023] Open
Abstract
Hemodialysis (HD) is known to affect ocular blood flow. This case-control study aims to evaluate macular and peripapillary vasculature in patients with end-stage renal disease (ESRD) receiving HD in comparison to matched controls. A total of 24 eyes of 24 ESRD patients receiving HD and 24 eyes of 24 healthy, age- and gender-matched control subjects were prospectively included in this study. Optical coherence tomography angiography was used to image the superficial (SCP), deep (DCP), and choriocapillary (CC) macular vascular plexus, as well as the radial peripapillary capillaries (RPC) of the optic disc. In addition, retinal thickness (RT) and retinal volume (RV) were compared between both groups. Flow density (FD) values of each retinal layer and data of parameters related to the foveal avascular zone (FAZ), as well as RT and RV, were analyzed using Mann-Whitney U tests. There was no significant difference in FAZ parameters between the two groups. Whole en face FD of the SCP and CC was noticeably reduced in the HD group in comparison to the control group. FD was negatively correlated with the duration of HD treatment. RT and RV were significantly smaller in the study group than in controls. Retinal microcirculation appears altered in patients with ESRD undergoing HD. Concurrently, the DCP appears more resilient towards hemodynamic changes in comparison to the other microvascular retinal layers. OCTA is a useful, non-invasive tool to investigate retinal microcirculation in ESRD patients.
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Affiliation(s)
- Larissa Lahme
- Department of Ophthalmology, University of Muenster Medical Center, 48149 Muenster, Germany
| | - Jens Julian Storp
- Department of Ophthalmology, University of Muenster Medical Center, 48149 Muenster, Germany
| | - Elena Marchiori
- Department of Vascular and Endovascular Surgery, University of Muenster Medical Center, 48149 Muenster, Germany
| | - Eliane Esser
- Department of Ophthalmology, University of Muenster Medical Center, 48149 Muenster, Germany
| | - Nicole Eter
- Department of Ophthalmology, University of Muenster Medical Center, 48149 Muenster, Germany
| | - Natasa Mihailovic
- Department of Ophthalmology, Klinikum Bielefeld gem. GmbH, 33604 Bielefeld, Germany
| | - Maged Alnawaiseh
- Department of Ophthalmology, Klinikum Bielefeld gem. GmbH, 33604 Bielefeld, Germany
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Zhao D, Wang W, Tang T, Zhang YY, Yu C. Current progress in artificial intelligence-assisted medical image analysis for chronic kidney disease: A literature review. Comput Struct Biotechnol J 2023; 21:3315-3326. [PMID: 37333860 PMCID: PMC10275698 DOI: 10.1016/j.csbj.2023.05.029] [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: 10/28/2022] [Revised: 05/28/2023] [Accepted: 05/28/2023] [Indexed: 06/20/2023] Open
Abstract
Chronic kidney disease (CKD) causes irreversible damage to kidney structure and function. Arising from various etiologies, risk factors for CKD include hypertension and diabetes. With a progressively increasing global prevalence, CKD is an important public health problem worldwide. Medical imaging has become an important diagnostic tool for CKD through the non-invasive identification of macroscopic renal structural abnormalities. Artificial intelligence (AI)-assisted medical imaging techniques aid clinicians in the analysis of characteristics that cannot be easily discriminated by the naked eye, providing valuable information for the identification and management of CKD. Recent studies have demonstrated the effectiveness of AI-assisted medical image analysis as a clinical support tool using radiomics- and deep learning-based AI algorithms for improving the early detection, pathological assessment, and prognostic evaluation of various forms of CKD, including autosomal dominant polycystic kidney disease. Herein, we provide an overview of the potential roles of AI-assisted medical image analysis for the diagnosis and management of CKD.
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Affiliation(s)
- Dan Zhao
- Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Wei Wang
- Department of Radiology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Tian Tang
- Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Ying-Ying Zhang
- Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
| | - Chen Yu
- Department of Nephrology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200065, China
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Tan Y, Sun X. Ocular images-based artificial intelligence on systemic diseases. Biomed Eng Online 2023; 22:49. [PMID: 37208715 DOI: 10.1186/s12938-023-01110-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/02/2023] [Indexed: 05/21/2023] Open
Abstract
PURPOSE To provide a summary of the research advances on ocular images-based artificial intelligence on systemic diseases. METHODS Narrative literature review. RESULTS Ocular images-based artificial intelligence has been used in a variety of systemic diseases, including endocrine, cardiovascular, neurological, renal, autoimmune, and hematological diseases, and many others. However, the studies are still at an early stage. The majority of studies have used AI only for diseases diagnosis, and the specific mechanisms linking systemic diseases to ocular images are still unclear. In addition, there are many limitations to the research, such as the number of images, the interpretability of artificial intelligence, rare diseases, and ethical and legal issues. CONCLUSION While ocular images-based artificial intelligence is widely used, the relationship between the eye and the whole body should be more clearly elucidated.
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Affiliation(s)
- Yuhe Tan
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xufang Sun
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China.
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Lyu Z, Chen Y, Zhu Z, Luo X, Cui Y, Xie J, Chen Z, Liu J, Wu X, Bulloch G, Meng Q. Associations of concomitant retinopathy and depression with mortality in a nationally representative population. J Affect Disord 2023; 336:15-24. [PMID: 37211053 DOI: 10.1016/j.jad.2023.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/23/2023]
Abstract
OBJECTIVE To evaluate the interaction effects between retinopathy and depression on mortality risks in genral population and subpopulation with diabetes. METHODS Prospective analyses were conducted on data from the National Health and Nutrition Examination Surveys study. Associations of retinopathy, depression and their interaction with all-cause, cardiovascular disease (CVD)-specific, cancer-specific and other-specific mortality risk were estimated using Kaplan-Meier curves and multivariate Cox proportional hazards models. RESULTS Among 5367 participants, the weighted prevalence of retinopathy and depression was 9.6 % and 7.1 %, respectively. After a follow-up period of 12.1 years, 1295 deaths (17.3 %) occurred. Retinopathy was associated with an increased risk of all-cause (hazard ratio [HR]; 95 % confidence interval [CI]) (1.47; 1.27-1.71), CVD-specific (1.87; 1.45-2.41), and other-specific (1.43; 1.14-1.79) mortality. Similar relationship was observed between depression and all-cause mortality (1.24; 1.02-1.52). Retinopathy and depression had a positive multiplicative and additive interaction effect on all-cause (Pinteraction = 0.015; relative excess risk of interaction [RERI] 1.30; 95 % CI 0.15-2.45) and CVD-specific mortality (Pinteraction = 0.042; RERI 2.65; 95 % CI -0.12-5.42). Concomitant retinopathy and depression was more markedly associated with all-cause (2.86; 1.91-4.28), CVD-specific (4.70; 2.57-8.62), and other-specific mortality risks (2.18; 1.14-4.15) compared to those without retinopathy and depression. These associations were more pronounced in the diabetic participants. CONCLUSIONS The co-occurrence of retinopathy and depression increases the risk of all-cause and CVD-specific mortality among middle-aged and older adults in the United States, especially in population with diabetes. Focus on diabetic patients and active evaluation and intervention of retinopathy with depression may improve their quality of life and mortality outcomes.
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Affiliation(s)
- Zheng Lyu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Yilin Chen
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Zhuoting Zhu
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China; Ophthalmology, Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia
| | - Xiaoyang Luo
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Ying Cui
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Jie Xie
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhifan Chen
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Junbin Liu
- Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xiyu Wu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Gabrella Bulloch
- Ophthalmology, Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia
| | - Qianli Meng
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China; Guangdong Eye Institute, Department of Ophthalmology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China.
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46
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Yan W, Qin C, Tao L, Guo X, Liu Q, Du M, Zhu L, Chen Z, Liang W, Liu M, Liu J. Association between inequalities in human resources for health and all cause and cause specific mortality in 172 countries and territories, 1990-2019: observational study. BMJ 2023; 381:e073043. [PMID: 37164365 PMCID: PMC10170610 DOI: 10.1136/bmj-2022-073043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/28/2023] [Indexed: 05/12/2023]
Abstract
OBJECTIVE To explore inequalities in human resources for health (HRH) in relation to all cause and cause specific mortality globally in 1990-2019. DESIGN Observational study. SETTING 172 countries and territories. DATA SOURCES Databases of the Global Burden of Disease Study 2019, United Nations Statistics, and Our World in Data. MAIN OUTCOME MEASURES The main outcome was age standardized all cause mortality per 100 000 population in relation to HRH density per 10 000 population, and secondary outcome was age standardized cause specific mortality. The Lorenz curve and the concentration index (CCI) were used to assess trends and inequalities in HRH. RESULTS Globally, the total HRH density per 10 000 population increased, from 56.0 in 1990 to 142.5 in 2019, whereas age standardized all cause mortality per 100 000 population decreased, from 995.5 in 1990 to 743.8 in 2019. The Lorenz curve lay below the equality line and CCI was 0.43 (P<0.05), indicating that the health workforce was more concentrated among countries and territories ranked high on the human development index. The CCI for HRH was stable, at about 0.42-0.43 between 1990 and 2001 and continued to decline (narrowed inequality), from 0.43 in 2001 to 0.38 in 2019 (P<0.001). In the multivariable generalized estimating equation model, a negative association was found between total HRH level and all cause mortality, with the highest levels of HRH as reference (low: incidence risk ratio 1.15, 95% confidence interval 1.00 to 1.32; middle: 1.14, 1.01 to 1.29; high: 1.18, 1.08 to 1.28). A negative association between total HRH density and mortality rate was more pronounced for some types of cause specific mortality, including neglected tropical diseases and malaria, enteric infections, maternal and neonatal disorders, and diabetes and kidney diseases. The risk of death was more likely to be higher in people from countries and territories with a lower density of doctors, dentistry staff, pharmaceutical staff, aides and emergency medical workers, optometrists, psychologists, personal care workers, physiotherapists, and radiographers. CONCLUSIONS Inequalities in HRH have been decreasing over the past 30 years globally but persist. All cause mortality and most types of cause specific mortality were relatively higher in countries and territories with a limited health workforce, especially for several specific HRH types among priority diseases. The findings highlight the importance of strengthening political commitment to develop equity oriented health workforce policies, expanding health financing, and implementing targeted measures to reduce deaths related to inadequate HRH to achieve universal health coverage by 2030.
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Affiliation(s)
- Wenxin Yan
- School of Public Health, Peking University, Haidian District, Beijing, China
| | - Chenyuan Qin
- School of Public Health, Peking University, Haidian District, Beijing, China
| | - Liyuan Tao
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Haidian District, Beijing, China
- Department of Epidemiology, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Xin Guo
- Department of Institutional Reform, National Health Commission of the People's Republic of China, Xicheng District, Beijing, China
| | - Qiao Liu
- School of Public Health, Peking University, Haidian District, Beijing, China
| | - Min Du
- School of Public Health, Peking University, Haidian District, Beijing, China
| | - Lin Zhu
- Department of Health Policy, School of Medicine, Stanford University, Stanford, CA, USA
| | - Zhongdan Chen
- World Health Organization Representative Office for China, Chaoyang District, Beijing, China
| | - Wannian Liang
- Vanke School of Public Health, Tsinghua University, Haidian District, Beijing, China
- Institute for Healthy China, Tsinghua University, Haidian District, Beijing, China
| | - Min Liu
- School of Public Health, Peking University, Haidian District, Beijing, China
| | - Jue Liu
- School of Public Health, Peking University, Haidian District, Beijing, China
- Institute for Global Health and Development, Peking University, Haidian District, Beijing, China
- Peking University Health Science Center-Weifang Joint Research Center for Maternal and Child Health, Peking University, Haidian District, Beijing, China
- Key Laboratory of Epidemiology of Major Diseases (Peking University), Ministry of Education, Haidian District, Beijing, China
- Department of Global Health and Population, Harvard TH Chan School of Public Health, Boston, MA, USA
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Hsu E, Desai M. Glaucoma and Systemic Disease. Life (Basel) 2023; 13:life13041018. [PMID: 37109547 PMCID: PMC10143901 DOI: 10.3390/life13041018] [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: 03/23/2023] [Revised: 04/09/2023] [Accepted: 04/12/2023] [Indexed: 04/29/2023] Open
Abstract
Glaucoma is the leading cause of irreversible blindness in the world. Due to its potential to cause permanent vision loss, it is important to understand how systemic conditions and their respective treatments can be associated with or increase the risk for developing glaucoma. In this review, we examined the literature for up-to-date discussions and provided commentary on glaucoma, its pathophysiology, and associated risk factors. We discuss systemic diseases and the impact, risk, and mechanism for developing glaucoma, including pharmacologically induced glaucoma; inflammatory and auto-immune conditions; infectious, dermatologic, cardiovascular, pulmonary, renal, urologic, neurologic, psychiatric and systemic malignancies: intraocular tumors; as well as pediatric, and genetic conditions. The goal of our discussion of systemic conditions including their commonality, mechanisms, treatments, and associations with developing glaucoma is to emphasize the importance of ocular examinations and follow-up with the multidisciplinary teams involved in the care of each patient to prevent unnecessary vision-loss.
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Affiliation(s)
- Eugene Hsu
- Department of Ophthalmology, Boston University School of Medicine, 85 East Concord Street, 8th Floor, Boston, MA 02118, USA
| | - Manishi Desai
- Department of Ophthalmology, Boston University School of Medicine, 85 East Concord Street, 8th Floor, Boston, MA 02118, USA
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Hammadi S, Tzoumas N, Ferrara M, Meschede IP, Lo K, Harris C, Lako M, Steel DH. Bruch's Membrane: A Key Consideration with Complement-Based Therapies for Age-Related Macular Degeneration. J Clin Med 2023; 12:2870. [PMID: 37109207 PMCID: PMC10145879 DOI: 10.3390/jcm12082870] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 03/29/2023] [Accepted: 04/03/2023] [Indexed: 04/29/2023] Open
Abstract
The complement system is crucial for immune surveillance, providing the body's first line of defence against pathogens. However, an imbalance in its regulators can lead to inappropriate overactivation, resulting in diseases such as age-related macular degeneration (AMD), a leading cause of irreversible blindness globally affecting around 200 million people. Complement activation in AMD is believed to begin in the choriocapillaris, but it also plays a critical role in the subretinal and retinal pigment epithelium (RPE) spaces. Bruch's membrane (BrM) acts as a barrier between the retina/RPE and choroid, hindering complement protein diffusion. This impediment increases with age and AMD, leading to compartmentalisation of complement activation. In this review, we comprehensively examine the structure and function of BrM, including its age-related changes visible through in vivo imaging, and the consequences of complement dysfunction on AMD pathogenesis. We also explore the potential and limitations of various delivery routes (systemic, intravitreal, subretinal, and suprachoroidal) for safe and effective delivery of conventional and gene therapy-based complement inhibitors to treat AMD. Further research is needed to understand the diffusion of complement proteins across BrM and optimise therapeutic delivery to the retina.
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Affiliation(s)
- Sarah Hammadi
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Nikolaos Tzoumas
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Sunderland Eye Infirmary, Queen Alexandra Rd., Sunderland SR2 9H, UK
| | | | - Ingrid Porpino Meschede
- Gyroscope Therapeutics Limited, a Novartis Company, Rolling Stock Yard, 6th Floor, 188 York Way, London N7 9AS, UK
| | - Katharina Lo
- Gyroscope Therapeutics Limited, a Novartis Company, Rolling Stock Yard, 6th Floor, 188 York Way, London N7 9AS, UK
| | - Claire Harris
- Gyroscope Therapeutics Limited, a Novartis Company, Rolling Stock Yard, 6th Floor, 188 York Way, London N7 9AS, UK
- Clinical and Translational Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - Majlinda Lako
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
| | - David H. Steel
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Sunderland Eye Infirmary, Queen Alexandra Rd., Sunderland SR2 9H, UK
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Little DJ, Arnold M, Hedman K, Sun P, Haque SA, James G. Rates of adverse clinical events in patients with chronic kidney disease: analysis of electronic health records from the UK clinical practice research datalink linked to hospital data. BMC Nephrol 2023; 24:91. [PMID: 37020294 PMCID: PMC10077632 DOI: 10.1186/s12882-023-03119-z] [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: 09/12/2022] [Accepted: 03/17/2023] [Indexed: 04/07/2023] Open
Abstract
BACKGROUND Further understanding of adverse clinical event rates in patients with chronic kidney disease (CKD) is required for improved quality of care. This study described baseline characteristics, adverse clinical event rates, and mortality risk in patients with CKD, accounting for CKD stage and dialysis status. METHODS This retrospective, noninterventional cohort study included data from adults (aged ≥ 18 years) with two consecutive estimated glomerular filtration rates of < 60 ml/min/1.73 m2, recorded ≥ 3 months apart, from the UK Clinical Practice Research Datalink of electronic health records obtained between January 1, 2004, and December 31, 2017. Select adverse clinical events, associated with CKD and difficult to quantify in randomized trials, were assessed; defined by Read codes and International Classification of Diseases, Tenth Revision codes. Clinical event rates were assessed by dialysis status (dialysis-dependent [DD], incident dialysis-dependent [IDD], or non-dialysis-dependent [NDD]), dialysis modality (hemodialysis [HD] or peritoneal dialysis [PD]), baseline NDD-CKD stage (3a-5), and observation period. RESULTS Overall, 310,953 patients with CKD were included. Comorbidities were more common in patients receiving dialysis than in NDD-CKD, and increased with advancing CKD stage. Rates of adverse clinical events, particularly hyperkalemia and infection/sepsis, also increased with advancing CKD stage and were higher in patients on HD versus PD. Mortality risk during follow-up (1-5-year range) was lowest in patients with stage 3a NDD-CKD (2.0-18.5%) and highest in patients with IDD-CKD (26.3-58.4%). CONCLUSIONS These findings highlight the need to monitor patients with CKD for comorbidities and complications, as well as signs or symptoms of clinical adverse events.
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Affiliation(s)
- Dustin J Little
- Late Cardiovascular, Renal, Metabolism, BioPharmaceuticals R&D, AstraZeneca, Gaithersburg, MD, 20876, USA.
| | - Matthew Arnold
- Real World Data Science, BioPharmaceuticals Medical, AstraZeneca, Cambridge, UK
| | - Katarina Hedman
- Biometrics CVRM, BioPharmaceuticals R&D, AstraZeneca, Gothenburg, Sweden
| | - Ping Sun
- Real World Data Science, Oncology Business Unit, AstraZeneca, Cambridge, UK
| | - Syed Asif Haque
- Global Patient Safety BioPharma, BioPharmaceuticals Medical, AstraZeneca, Gaithersburg, MD, USA
| | - Glen James
- Cardiovascular, Renal, Metabolism Epidemiology, BioPharmaceuticals Medical, AstraZeneca, Cambridge, UK
- Present Address: Integrated Evidence Generation & Business Innovation, Bayer PLC, Reading, UK
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50
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Zhu Z, Shi D, Guankai P, Tan Z, Shang X, Hu W, Liao H, Zhang X, Huang Y, Yu H, Meng W, Wang W, Ge Z, Yang X, He M. Retinal age gap as a predictive biomarker for mortality risk. Br J Ophthalmol 2023; 107:547-554. [PMID: 35042683 DOI: 10.1136/bjophthalmol-2021-319807] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 10/27/2021] [Indexed: 01/09/2023]
Abstract
AIM To develop a deep learning (DL) model that predicts age from fundus images (retinal age) and to investigate the association between retinal age gap (retinal age predicted by DL model minus chronological age) and mortality risk. METHODS A total of 80 169 fundus images taken from 46 969 participants in the UK Biobank with reasonable quality were included in this study. Of these, 19 200 fundus images from 11 052 participants without prior medical history at the baseline examination were used to train and validate the DL model for age prediction using fivefold cross-validation. A total of 35 913 of the remaining 35 917 participants had available mortality data and were used to investigate the association between retinal age gap and mortality. RESULTS The DL model achieved a strong correlation of 0.81 (p<0·001) between retinal age and chronological age, and an overall mean absolute error of 3.55 years. Cox regression models showed that each 1 year increase in the retinal age gap was associated with a 2% increase in risk of all-cause mortality (hazard ratio (HR)=1.02, 95% CI 1.00 to 1.03, p=0.020) and a 3% increase in risk of cause-specific mortality attributable to non-cardiovascular and non-cancer disease (HR=1.03, 95% CI 1.00 to 1.05, p=0.041) after multivariable adjustments. No significant association was identified between retinal age gap and cardiovascular- or cancer-related mortality. CONCLUSIONS Our findings indicate that retinal age gap might be a potential biomarker of ageing that is closely related to risk of mortality, implying the potential of retinal image as a screening tool for risk stratification and delivery of tailored interventions.
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Affiliation(s)
- Zhuoting Zhu
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Danli Shi
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Peng Guankai
- Guangzhou Vision Tech Medical Technology Co., Ltd, GuangZhou, China
| | - Zachary Tan
- Centre for Eye Research Australia; Ophthalmology, University of Melbourne, East Melbourne, Victoria, Australia
| | - Xianwen Shang
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Wenyi Hu
- Centre for Eye Research Australia; Ophthalmology, University of Melbourne, East Melbourne, Victoria, Australia
| | - Huan Liao
- Neural Regeneration Group, Institute of Reconstructive Neurobiology, University of Bonn, Bonn, Germany
| | - Xueli Zhang
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Yu Huang
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Honghua Yu
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Wei Meng
- Guangzhou Vision Tech Medical Technology Co., Ltd, GuangZhou, China
| | - Wei Wang
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Zongyuan Ge
- Monash e-Research Centre, Monash University, Melbourne, Victoria, Australia
- Monash Medical AI Group, Monash University, Melbourne, Victoria, Australia
| | - Xiaohong Yang
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
| | - Mingguang He
- Department of Ophthalmology, Guangdong Academy of Medical Sciences, Guangdong Provincial People's Hospital, Guangzhou, China
- State Key Laboratory of Ophthalmology, Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, People's Republic of China
- Centre for Eye Research Australia; Ophthalmology, University of Melbourne, East Melbourne, Victoria, Australia
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